CN117340052A - Shield tunneling machine shell correction device and correction method - Google Patents
Shield tunneling machine shell correction device and correction method Download PDFInfo
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- CN117340052A CN117340052A CN202311375104.6A CN202311375104A CN117340052A CN 117340052 A CN117340052 A CN 117340052A CN 202311375104 A CN202311375104 A CN 202311375104A CN 117340052 A CN117340052 A CN 117340052A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005641 tunneling Effects 0.000 title description 3
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000001125 extrusion Methods 0.000 claims abstract description 50
- 238000007493 shaping process Methods 0.000 claims abstract description 21
- 239000010720 hydraulic oil Substances 0.000 claims description 26
- 239000003921 oil Substances 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of shield machines, in particular to a shield machine shell correction device and a correction method, wherein the correction device comprises a round table plate, a plurality of upright posts are fixed on the upper side of the round table plate at the edge position, a round ring supporting plate is fixed on the upper ends of the upright posts, a hollow cylinder is fixed on the upper side of the round table plate at the center position, and the correction method further comprises the following steps: the plurality of the segment correcting mechanisms are arranged on the outer side of the hollow cylinder at equal intervals. According to the invention, the piston pushes the locking mechanism to drive the first sliding block and the second sliding block of the extrusion shaping mechanism to move oppositely, so that the two extrusion correction rollers are driven to move reversely, the two extrusion correction rollers are abutted against the inner side and the outer side of the shield machine shell cylinder from the inner side and the outer side, the cylinder can be shaped, the diameter of the contact position of the cylinder and the extrusion correction rollers and the diameter of the adjacent area are equal to the designated diameter, and thus a good correction effect is achieved.
Description
Technical Field
The invention relates to the technical field of shield machines, in particular to a shield machine shell correction device and a correction method.
Background
The shield machine shell is a key component for the shield machine to work, the shield machine shell is divided into a front shield, a middle shield and a rear shield from front to back along the axial direction of the shield machine shell, the three shield machine shells are of a cylindrical structure, the front shield and the middle shield are connected through a plurality of thrust cylinders, the plurality of thrust cylinders are used for providing forward tunneling force for the shield machine, and the middle shield and the rear shield are connected through a plurality of hinge cylinders and are used for steering the shield machine. The shell of each section of the shield machine is formed by axially assembling a plurality of cylinders, and the shield machine shell is easy to deform due to the fact that the shield machine shell bears the pressure of a soil layer, so that the roundness of the cylinders of the shell is reduced, and the shell is required to be corrected.
The bulletin number is: CN107030142B discloses a correction tool for shield machine shell and a method for correcting shield machine shell, the correction tool for shield machine shell comprises: a support assembly and a correction assembly, the support assembly comprising: the device comprises a reference column and a reference seat, wherein the first end of the reference column is installed on the reference seat, the axis of the reference column is coincident with the central line of the reference seat, and a plurality of installation holes are formed in the outer wall of the reference column along the radial direction of the reference column; the correction assembly includes: the device comprises a first reference ring, a second reference ring, a positioning assembly, a plurality of support rods and a plurality of adjusting support rods.
Based on the above search and in combination with the real problem discovery: the device can only apply thrust to the inner side of the shell cylinder, so that a plurality of adjusting support rods apply thrust to the cylinder from the inner side, and the diameters of all points on the periphery of the cylinder are equal, but because each adjusting support rod pushes the cylinder from the inner side, the cylinder is easy to deform, the inner side of the cylinder receives thrust, but the outer side of the cylinder does not have thrust, when the cylinder receives excessive pressure, the cylinder can be outwards protruded, so that the diameter of the protruded part is larger than the designated diameter, the correction precision is reduced, and the roundness of the shell cylinder is reduced.
Disclosure of Invention
The invention aims to provide a shield machine shell correction device and a shield machine shell correction method, which are used for solving the problems in the background technology.
The technical scheme of the invention is as follows: the utility model provides a shield constructs casing correcting unit, includes the round platen, the upside of round platen is located border position department and is fixed with a plurality of stands, and a plurality of the upper end of stand is fixed with the ring fagging, the upside of round platen is located central point department and is fixed with hollow cylinder, still includes: the plurality of segment correction mechanisms are arranged on the outer side of the hollow cylinder at equal intervals; the angle positioning mechanism is arranged at the inner side position of the hollow cylinder; the sectional correction mechanism comprises a sleeve ring which is sleeved outside a hollow cylinder in a rotating mode, two bent rods are symmetrically fixed on two sides of the sleeve ring, one ends of the bent rods are respectively fixed with an extension arm, one ends of the extension arms are respectively fixed with a sliding rail, the inner sides of the sliding rails are respectively connected with a diameter adjusting screw rod in a rotating mode, the outer sides of the diameter adjusting screw rods are respectively connected with a first screw rod sliding block through threads in a rotating mode, the upper sides of the first screw rod sliding blocks are respectively provided with an extrusion shaping mechanism, and the lower sides of the sliding rails are respectively provided with a supporting mechanism.
Preferably, the extrusion shaping mechanism comprises a first U-shaped frame fixed on the upper side of a first screw rod sliding block, a fixed rod is fixed on the inner side of the first U-shaped frame, two first piston plates are fixed on two ends of the outer side of the fixed rod, a first sliding block and a second sliding block are respectively sleeved on two ends of the outer side of the fixed rod in a sliding mode, the two first piston plates are respectively connected with the inner sides of the first sliding block and the second sliding block in a sliding mode, second U-shaped frames are respectively fixed on the upper sides of the first sliding block and the second sliding block, extrusion correction rollers are respectively connected on the inner sides of the two second U-shaped frames in a rotating mode, and a right-end space of the first sliding block is communicated with a right-end space of the second sliding block through a first oil pipe, and a piston pushing locking mechanism is arranged between the second sliding block and the first U-shaped frames.
Preferably, the piston promotes locking mechanical system including fixing the first drum in first U-shaped frame outside one end, the one end of first drum is fixed with the second drum, the one end of second drum is connected with second oil pipe, the one end and the left end space intercommunication of second slider of second oil pipe, the propulsion motor is installed to the inboard one end of first drum, and the inboard other end of first drum rotates and is connected with a plurality of propulsion lead screws that are circumference range, and a plurality of the outside of propulsion lead screw is connected with the push pedal through the screw rotation, and the end of every propulsion lead screw all is fixed with the lead screw gear, the drive end of propulsion motor is fixed with motor gear, mesh between motor gear and a plurality of lead screw gears through tooth, the one end of push pedal is located central point department and is fixed with the propulsion pole that extends to the second drum inboard, the one end of propulsion pole is fixed with sliding connection in the inboard second piston plate of second drum, the right end space of first slider, the left and right end space of second slider, second drum, second oil pipe inside all are filled with hydraulic oil.
Preferably, the supporting mechanism comprises two hollow square columns fixed at two ends of the lower side of the sliding rail, the lower ends of the two hollow square columns are respectively inserted with telescopic columns in a sliding manner, the upper ends of the two telescopic columns are respectively elastically connected with the top ends of the inner sides of the hollow square columns through rubber pressing blocks, a pressing wheel shaft is rotatably connected between the two telescopic columns, and a plurality of supporting wheels are fixed on the outer sides of the pressing wheel shafts at equal intervals.
Preferably, the angle positioning mechanism comprises an electric telescopic rod arranged at the top end of the inner side of the hollow cylinder, a guide post fixed at the bottom end of the inner side of the hollow cylinder and four positioning inner supporting plates which are slidably inserted into the side surface of the hollow cylinder, a lifting rod is sleeved on the outer side of the guide post in a sliding manner, the telescopic end of the electric telescopic rod is fixedly connected with the upper end of the lifting rod, and the outer side of the lifting rod is rotatably connected with one side of each of the four positioning inner supporting plates through a plurality of connecting rods.
Preferably, a pointer is fixed at the middle section position of one side of the first U-shaped frame, and a dial is arranged at the position of one side of the sliding rail corresponding to the pointer.
Preferably, the end surface area of the second piston plate is smaller than the end surface area of the first piston plate.
Preferably, the thread lead angle between the diameter adjusting screw and the first screw slider is smaller than the friction angle.
The invention also provides a shield machine shell correction method, which specifically comprises the following steps:
step one, rotating the lantern ring of each segment correcting mechanism to make the included angle between each segment correcting mechanism equal, then controlling the telescopic end of the electric telescopic rod of the angle positioning mechanism to extend to drive the lifting rod to move downwards, and driving a plurality of connecting rods on the outer side of the lifting rod to rotate, wherein the plurality of connecting rods rotate to synchronously eject the four positioning inner supporting plates outwards, so that the four positioning inner supporting plates tightly prop the inner side of each lantern ring from the inner side, thereby fixing the lantern ring of each segment correcting mechanism with the outer side of the hollow cylinder, fixing the angle of each segment correcting mechanism, and uniformly arranging the segment correcting mechanisms;
controlling a pushing motor of the piston pushing locking mechanism to operate so as to drive a motor gear to rotate, wherein the motor gear rotates to drive a plurality of screw rod gears to rotate through teeth, the plurality of screw rod gears drive a plurality of pushing screw rods to rotate, the plurality of pushing screw rods rotate to drive a push plate and a pushing rod to move through threads, and the pushing rod drives a second piston plate to move on the inner side of a second cylinder;
and thirdly, the second piston plate moves to push hydraulic oil in the second cylinder into the left end space of the second sliding block in the extrusion shaping mechanism through the second oil pipe, so that the hydraulic oil pressure in the left end space of the second sliding block is increased, the first piston plate is fixed, the second sliding block can move leftwards towards the middle section position of the fixed rod under the action of the hydraulic oil pressure, when the second sliding block moves leftwards, the hydraulic oil in the right end space of the second sliding block is pushed into the right end space of the first sliding block through the first oil pipe, so that the first sliding block can be driven to move rightwards, the moving directions of the first sliding block and the second sliding block are opposite, the moving speeds are equal, the two second U-shaped frames are driven to move reversely, the two extrusion correcting rollers are driven to move reversely, and the two extrusion correcting rollers are abutted against the inner side and the outer side of the shield shell cylinder from the inner side and the outer side of the shield shell, and the cylinder can be shaped.
Compared with the prior art, the shield machine shell correction device and the shield machine shell correction method provided by the invention have the following improvements and advantages:
the method comprises the following steps: according to the invention, the piston pushes the locking mechanism to drive the first sliding block and the second sliding block of the extrusion shaping mechanism to move oppositely, so that the two extrusion correction rollers are driven to move reversely, the two extrusion correction rollers are abutted against the inner side and the outer side of the shield machine shell cylinder from the inner side and the outer side, the cylinder can be shaped, the diameter of the contact position of the cylinder and the extrusion correction rollers and the diameter of the nearby area are equal to the designated diameter, so that a good correction effect is achieved, meanwhile, the piston pushes the locking mechanism to push the second piston plate, the position of the second piston plate can be locked, the second piston plate is prevented from being reversely moved by the reaction force of hydraulic oil, the separation of the first sliding block and the second sliding block is avoided, the separation of the two extrusion correction rollers is further prevented, the extrusion force of the two extrusion correction rollers to the shell cylinder is kept continuously, the cylinder is prevented from rebounding, the cylinder is better formed, and the correction effect of the shell cylinder is improved.
And two,: according to the invention, the plurality of segment correction mechanisms are used for correcting from each position on the outer side of the cylinder, so that the diameters of each point on the outer side of the cylinder are closer, the correction error is greatly reduced, meanwhile, the angles of each segment correction mechanism are fixed through the angle positioning mechanism, so that each segment correction mechanism is uniformly arranged, and the plurality of segment correction mechanisms are prevented from rotating, so that each position on the outer side of the shell cylinder can be shaped, the correction uniformity is further improved, the diameters of each position of the cylinder are close to the appointed value, the roundness of the cylinder is improved, and the correction accuracy of the cylinder is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view showing the structure of the unfolding state of a plurality of segment correcting mechanisms in the invention;
FIG. 3 is a schematic view of a partially enlarged structure of the present invention;
FIG. 4 is a schematic view of a partially enlarged cross-sectional structure of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;
FIG. 6 is a schematic overall cross-sectional view of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6B in accordance with the present invention;
fig. 8 is a schematic view of the structure of the present invention for correcting the cylinder.
Reference numerals:
1. a round bedplate; 2. a column; 3. a circular ring supporting plate; 4. a hollow cylinder; 101. a collar; 102. bending a rod; 103. an extension arm; 104. a slide rail; 105. a diameter adjusting screw rod; 106. a first screw rod sliding block; 107. a pointer; 201. a first U-shaped frame; 202. a fixed rod; 203. a first slider; 204. a second slider; 205. a second U-shaped frame; 206. extruding the correction roller; 207. a first piston plate; 208. a first oil pipe; 209. a first cylinder; 210. a second cylinder; 211. a second oil pipe; 212. a propulsion motor; 213. a motor gear; 214. a push plate; 215. pushing the screw rod; 216. a screw rod gear; 217. a propulsion rod; 218. a second piston plate; 301. a hollow square column; 302. a telescopic column; 303. a rubber briquetting; 304. a pressing wheel shaft; 305. a support wheel; 401. an electric telescopic rod; 402. a guide post; 403. a lifting rod; 404. a connecting rod; 405. and positioning the inner supporting plate.
Detailed Description
The following detailed description of the present invention clearly and fully describes the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a shield machine shell correction device and a correction method by improving the shield machine shell correction device, and the technical scheme of the invention is as follows:
example 1
As shown in fig. 1 to 8, an embodiment of the present invention provides a shield machine casing correction device, which includes a circular platen 1, a plurality of columns 2 are fixed on the upper side of the circular platen 1 at the edge position, a circular supporting plate 3 is fixed on the upper ends of the plurality of columns 2, a hollow cylinder 4 is fixed on the upper side of the circular platen 1 at the central position, and further includes: the plurality of segment correcting mechanisms are arranged on the outer side of the hollow cylinder 4 at equal intervals; the angle positioning mechanism is arranged at the inner side position of the hollow cylinder 4; the subsection correction mechanism comprises a lantern ring 101 which is rotationally sleeved on the outer side of a hollow cylinder 4, two bending rods 102 are symmetrically fixed on two sides of the lantern ring 101, extension arms 103 are respectively fixed at one ends of the two bending rods 102, sliding rails 104 are respectively fixed at one ends of the two extension arms 103, diameter adjusting screw rods 105 are respectively connected with the inner sides of the two sliding rails 104 in a rotating mode, first screw rod sliding blocks 106 are respectively connected with the outer sides of the two diameter adjusting screw rods 105 in a rotating mode through threads, extrusion shaping mechanisms are respectively arranged on the upper sides of the two first screw rod sliding blocks 106, and supporting mechanisms are arranged on the lower sides of the sliding rails 104.
Further, the extrusion shaping mechanism comprises a first U-shaped frame 201 fixed on the upper side of the first screw rod sliding block 106, a fixed rod 202 is fixed on the inner side of the first U-shaped frame 201, two first piston plates 207 are fixed on two ends of the outer side of the fixed rod 202, a first sliding block 203 and a second sliding block 204 are respectively sleeved on two ends of the outer side of the fixed rod 202 in a sliding manner, the two first piston plates 207 are respectively connected with the inner sides of the first sliding block 203 and the second sliding block 204 in a sliding manner, a second U-shaped frame 205 is fixed on the upper sides of the first sliding block 203 and the second sliding block 204, extrusion correction rollers 206 are respectively connected on the inner sides of the two second U-shaped frames 205 in a rotating manner, a right end space of the first sliding block 203 is communicated with a right end space of the second sliding block 204 through a first oil pipe 208, and a piston pushing locking mechanism is arranged between the second sliding block 204 and the first U-shaped frame 201;
the second piston plate 218 moves to push hydraulic oil in the second cylinder 210 into the left end space of the second slider 204 in the extrusion shaping mechanism through the second oil pipe 211, so that the hydraulic oil pressure in the left end space of the second slider 204 is increased, the first piston plate 207 is fixed, so that the second slider 204 can move leftwards towards the middle position of the fixed rod 202 under the action of the hydraulic oil pressure, when the second slider 204 moves leftwards, hydraulic oil in the right end space of the second slider 204 is pushed into the right end space of the first slider 203 through the first oil pipe 208, so that the first slider 203 can be driven to move rightwards, the moving directions of the first slider 203 and the second slider 204 are opposite, the moving speeds are equal, the two second U-shaped frames 205 are driven to move reversely, the two extrusion correcting rollers 206 are abutted against the inner side and the outer side of the shield shell cylinder from the inner side and the outer side, the diameter of the position where the cylinder contacts the extrusion correcting rollers 206 and the diameter of the adjacent area are equal to the required diameter, and thus the good effect is achieved.
Further, the piston pushing locking mechanism comprises a first cylinder 209 fixed at one end of the outer side of the first U-shaped frame 201, a second cylinder 210 is fixed at one end of the first cylinder 209, a second oil pipe 211 is connected to one end of the second cylinder 210, one end of the second oil pipe 211 is communicated with the left end space of the second sliding block 204, a pushing motor 212 is installed at one end of the inner side of the first cylinder 209, a plurality of pushing screws 215 which are arranged in a circumferential manner are rotatably connected to the other end of the inner side of the first cylinder 209, push plates 214 are rotatably connected to the outer side of the plurality of pushing screws 215 through threads, screw gears 216 are fixed at the tail end of each pushing screw 215, a motor gear 213 is fixed at the driving end of the pushing motor 212, the motor gear 213 is meshed with the plurality of screw gears 216 through teeth, a pushing rod 217 extending to the inner side of the second cylinder 210 is fixed at the central position of one end of the pushing plate 214, a second piston plate 218 which is slidably connected to the inner side of the second cylinder 210 is fixed at one end of the pushing rod 217, the right end space of the first sliding block 203, the left and right end spaces of the second sliding block 204, and the second cylinder 210 and the inner side 211 are filled with hydraulic oil;
the piston pushes the second piston plate 218 to push the locking mechanism, and simultaneously, the position of the second piston plate 218 can be locked, so that the second piston plate 218 is prevented from being reversely moved by the reaction force of hydraulic oil, and therefore, the separation of the first sliding block 203 and the second sliding block 204 can be avoided, and further, the separation of the two extrusion correcting rollers 206 is prevented, the extrusion force of the two extrusion correcting rollers 206 on the shell cylinder is kept continuously, the cylinder is prevented from rebounding, the cylinder can be better formed, and the correction effect of the shell cylinder is improved.
Further, the supporting mechanism comprises two hollow square columns 301 fixed at two ends of the lower side of the sliding rail 104, the lower ends of the two hollow square columns 301 are respectively inserted with a telescopic column 302 in a sliding manner, the upper ends of the two telescopic columns 302 are respectively elastically connected with the top end of the inner side of the hollow square column 301 through a rubber pressing block 303, a pressing wheel shaft 304 is rotatably connected between the two telescopic columns 302, and a plurality of supporting wheels 305 are fixed on the outer side of the pressing wheel shaft 304 at equal intervals;
the supporting wheels 305 of the supporting mechanism can roll on the upper side of the circular truncated cone plate 1, the supporting wheels 305 can apply upward supporting force to the two telescopic columns 302 through the pressing wheel shafts 304, the two telescopic columns 302 are elastically connected with the top ends of the two hollow square columns 301 through the rubber pressing blocks 303, so that upward supporting force is applied to the sliding rail 104 in the sectional correcting mechanism, deformation of the extension arm 103 and the sliding rail 104 is reduced, the extension arm 103 and the sliding rail 104 are prevented from being bent downwards, the two extrusion correcting rollers 206 are prevented from keeping an absolute vertical angle, the two extrusion correcting rollers 206 can be fully attached to the inner side and the outer side of the shell cylinder, and the correcting accuracy of the cylinder is improved.
Further, the angle positioning mechanism comprises an electric telescopic rod 401 arranged at the top end of the inner side of the hollow cylinder 4, a guide post 402 fixed at the bottom end of the inner side of the hollow cylinder 4 and four positioning inner supporting plates 405 which are slidably inserted into the side surface of the hollow cylinder 4, a lifting rod 403 is slidably sleeved on the outer side of the guide post 402, the telescopic end of the electric telescopic rod 401 is fixedly connected with the upper end of the lifting rod 403, and the outer side of the lifting rod 403 is rotatably connected with one side of the four positioning inner supporting plates 405 through a plurality of connecting rods 404;
the angle of each segment correcting mechanism is fixed through the angle positioning mechanism, so that the segment correcting mechanisms are uniformly arranged, a plurality of segment correcting mechanisms are prevented from rotating, and therefore, the positions outside the shell cylinder can be shaped, and the correction uniformity is further improved.
Further, a pointer 107 is fixed at a position of one side of the first U-shaped frame 201 located at the middle section, and a dial is arranged at a position of one side of the sliding rail 104 corresponding to the pointer 107;
the pointer 107 points to the scale mark on the surface of the dial, so that the distance between the extrusion shaping mechanism and the hollow cylinder 4 is conveniently judged, the distance between the extrusion shaping mechanism and the hollow cylinder 4 is adjusted to be equal to the diameter of the shell cylinder, and the correction precision is improved.
Further, the end surface area of the second piston plate 218 is smaller than the end surface area of the first piston plate 207;
as is known from the pascal principle, the smaller the area, the greater the pressure to which the area is subjected, so that the first piston plate 207 can amplify the thrust from the second piston plate 218, thereby increasing the thrust applied to the first slider 203 and the second slider 204, and further increasing the pressing force of the two pressing correction rollers 206 against the housing cylinder, so that the cylinder can be sufficiently deformed to return to the original roundness.
Further, the thread lead angle between the diameter adjusting screw 105 and the first screw slider 106 is smaller than the friction angle;
the self-locking function is achieved, the first screw rod sliding block 106 is prevented from generating micro movement, the whole movement of the extrusion shaping mechanism is prevented, and the correction precision of the cylinder is improved.
Example two
The embodiment also provides a shield machine shell correction method, which specifically comprises the following steps:
step one, rotating the lantern ring 101 of each segment correcting mechanism to make the included angle between each segment correcting mechanism equal, then controlling the telescopic end of the electric telescopic rod 401 of the angle positioning mechanism to extend to drive the lifting rod 403 to move downwards, and driving the plurality of connecting rods 404 on the outer side of the lifting rod 403 to rotate, wherein the plurality of connecting rods 404 rotate to synchronously eject the four positioning inner supporting plates 405 outwards, so that the four positioning inner supporting plates 405 abut against the inner side of each lantern ring 101 from the inner side, thereby fixing the lantern ring 101 of each segment correcting mechanism with the outer side of the hollow cylinder 4, fixing the angle of each segment correcting mechanism, and uniformly arranging the segment correcting mechanisms;
step two, controlling a pushing motor 212 of a piston pushing locking mechanism to operate so as to drive a motor gear 213 to rotate, wherein the motor gear 213 rotates to drive a plurality of screw rod gears 216 to rotate through teeth, the plurality of screw rod gears 216 drive a plurality of pushing screw rods 215 to rotate, the plurality of pushing screw rods 215 rotate to drive a push plate 214 and a pushing rod 217 to move through threads, and the pushing rod 217 drives a second piston plate 218 to move on the inner side of a second cylinder 210;
step three, the second piston plate 218 moves to push the hydraulic oil in the second cylinder 210 into the left end space of the second slider 204 in the extrusion shaping mechanism through the second oil pipe 211, so as to increase the hydraulic oil pressure in the left end space of the second slider 204, and because the first piston plate 207 is fixed, the second slider 204 can move leftwards towards the middle section position of the fixed rod 202 under the action of the hydraulic oil pressure, when the second slider 204 moves leftwards, the hydraulic oil in the right end space of the second slider 204 is pushed into the right end space of the first slider 203 through the first oil pipe 208, so that the first slider 203 can be driven to move rightwards, the moving directions of the first slider 203 and the second slider 204 are opposite, the moving speeds are equal, and thus the two second U-shaped frames 205 are driven to move reversely, the two extrusion correcting rollers 206 are driven to move reversely, and the two extrusion correcting rollers 206 are abutted against the inner side and the outer side of the shield casing cylinder from the inner side and the outer side of the shield casing cylinder can be shaped.
Working principle: when the shield machine shell is used, the cylinder of the shield machine shell is horizontally placed on the upper side of the annular supporting plate 3, then the lantern ring 101 of each segment correcting mechanism is rotated, so that the included angles among the segment correcting mechanisms are equal, as shown in the figure 8 of the specification, the telescopic ends of the electric telescopic rods 401 of the angle positioning mechanisms are controlled to extend to drive the lifting rods 403 to move downwards, the lifting rods 403 move downwards to drive the plurality of connecting rods 404 on the outer side of the lifting rods to rotate, the plurality of connecting rods 404 rotate to synchronously eject the four positioning inner supporting plates 405 outwards, so that the four positioning inner supporting plates 405 abut against the inner side of each lantern ring 101 from the inner side, the lantern ring 101 of each segment correcting mechanism is fixed with the outer side of the hollow cylinder 4, the angles of each segment correcting mechanism are fixed, all the positions on the outer side of the shell cylinder are uniformly arranged, the correction uniformity is improved, the diameters of all parts of the cylinder are close to the specified values, the roundness of the cylinder is improved, and the correction accuracy of the cylinder is improved;
then, a diameter adjusting screw rod 105 of the sectional correction mechanism is rotated, the diameter adjusting screw rod 105 rotates to drive a first screw rod sliding block 106 to slide on the inner side of a sliding rail 104 through threads, the first screw rod sliding block 106 drives an extrusion shaping mechanism on the upper side to synchronously move, simultaneously drives a pointer 107 to move, the pointer 107 points to scale marks on the surface of a dial, the distance between the extrusion shaping mechanism and the hollow cylinder 4 is conveniently judged, and the distance between the extrusion shaping mechanism and the hollow cylinder 4 is adjusted to be equal to the diameter of a shell cylinder;
then, the pushing motor 212 of the piston pushing and locking mechanism is controlled to operate to drive the motor gear 213 to rotate, the motor gear 213 rotates to drive the plurality of lead screw gears 216 to rotate through teeth, the plurality of lead screw gears 216 drive the plurality of pushing lead screws 215 to rotate, the plurality of pushing lead screws 215 rotate to drive the push plate 214 and the pushing rod 217 to move through threads, the pushing rod 217 drives the second piston plate 218 to move inside the second cylinder 210, the movement direction of the second piston plate 218 pushes hydraulic oil inside the second cylinder 210 to the left end space of the second sliding block 204 in the extrusion shaping mechanism through the second oil pipe 211, the hydraulic oil pressure inside the left end space of the second sliding block 204 is increased, the first piston plate 207 is fixed, so that the second sliding block 204 can move leftwards towards the middle section position of the fixed rod 202 under the action of the hydraulic oil pressure, when the second sliding block 204 moves leftwards, the hydraulic oil in the right end space of the second sliding block is pushed into the right end space of the first sliding block 203 through the first oil pipe 208, the first sliding block 203 can be driven to move rightwards, the movement speed of the second sliding block 203 is opposite to the movement direction of the second sliding block 204, the two second sliding blocks 205 are driven to move rightwards, the two U-shaped frames 205 are driven to move rightwards, and the diameters of the two opposite sides of the two U-shaped frames are driven to be in the opposite directions to be in the extrusion shaping cylinder 206, and the diameter of the two opposite sides are well corrected, and the two sides are pressed against the inside and the outer side of the outer side 206 of a correction roller is well, so that the correction roller is well corrected, and the diameter is well corrected;
the piston pushing and locking mechanism pushes the second piston plate 218, and simultaneously, the position of the second piston plate 218 can be locked, so that the second piston plate 218 is prevented from being reversely moved by the reaction force of hydraulic oil, the separation of the first sliding block 203 and the second sliding block 204 can be avoided, the separation of the two extrusion correcting rollers 206 is further prevented, the extrusion force of the two extrusion correcting rollers 206 on the shell cylinder is kept continuously, the cylinder is prevented from rebounding, the cylinder can be better formed, and the correction effect of the shell cylinder is improved;
the supporting wheels 305 of the supporting mechanism can roll on the upper side of the circular truncated cone plate 1, the supporting wheels 305 can apply upward supporting force to the two telescopic columns 302 through the pressing wheel shafts 304, the two telescopic columns 302 are elastically connected with the top ends of the two hollow square columns 301 through the rubber pressing blocks 303, so that upward supporting force is applied to the sliding rail 104 in the sectional correcting mechanism, deformation of the extension arm 103 and the sliding rail 104 is reduced, the extension arm 103 and the sliding rail 104 are prevented from being bent downwards, the two extrusion correcting rollers 206 are prevented from keeping an absolute vertical angle, the two extrusion correcting rollers 206 can be fully attached to the inner side and the outer side of the shell cylinder, and the correcting accuracy of the cylinder is improved.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a shield constructs casing correcting unit, includes round platen (1), the upside of round platen (1) is located border position department and is fixed with a plurality of stand (2), and a plurality of the upper end of stand (2) is fixed with ring fagging (3), the upside of round platen (1) is located central point department and is fixed with hollow cylinder (4), its characterized in that still includes:
the plurality of segment correction mechanisms are arranged on the outer side of the hollow cylinder (4) at equal intervals;
the angle positioning mechanism is arranged at the inner side position of the hollow cylinder (4);
the sectional correction mechanism comprises a collar (101) which is sleeved outside a hollow cylinder (4) in a rotating mode, two bent rods (102) are symmetrically fixed on two sides of the collar (101), one ends of the bent rods (102) are respectively fixed with an extension arm (103), one ends of the extension arms (103) are respectively fixed with a sliding rail (104), the inner sides of the sliding rails (104) are respectively connected with a diameter adjusting screw rod (105) in a rotating mode, the outer sides of the diameter adjusting screw rods (105) are respectively connected with a first screw rod sliding block (106) through threads in a rotating mode, and the upper sides of the first screw rod sliding blocks (106) are respectively provided with an extrusion shaping mechanism, and the lower sides of the sliding rails (104) are respectively provided with a supporting mechanism.
2. The shield casing correction device according to claim 1, wherein: the extrusion shaping mechanism comprises a first U-shaped frame (201) fixed on the upper side of a first screw rod sliding block (106), a fixing rod (202) is fixed on the inner side of the first U-shaped frame (201), two first piston plates (207) are fixed on the two outer ends of the fixing rod (202), a first sliding block (203) and a second sliding block (204) are respectively sleeved on the two outer ends of the fixing rod (202) in a sliding mode, the two first piston plates (207) are respectively connected with the inner sides of the first sliding block (203) and the second sliding block (204) in a sliding mode, second U-shaped frames (205) are respectively fixed on the upper sides of the first sliding block (203) and the second sliding block (204), extrusion correction rollers (206) are respectively connected on the inner sides of the two second U-shaped frames (205) in a rotating mode, and a right end space of the first sliding block (203) is communicated with a right end space of the second sliding block (204) through a first oil pipe (208), and a piston locking mechanism is arranged between the second sliding block (204) and the first U-shaped frames (201).
3. A shield casing correction device according to claim 2, wherein: the piston pushing locking mechanism comprises a first cylinder (209) fixed at one end outside a first U-shaped frame (201), a second cylinder (210) is fixed at one end of the first cylinder (209), a second oil pipe (211) is connected to one end of the second cylinder (210), one end of the second oil pipe (211) is communicated with the left end space of a second sliding block (204), a pushing motor (212) is installed at one end inside the first cylinder (209), a plurality of pushing screws (215) which are circumferentially arranged are rotationally connected to the other end inside the first cylinder (209), a pushing plate (214) is rotationally connected to the outer sides of the pushing screws (215) through threads, a screw gear (216) is fixed at the tail end of each pushing screw (215), a motor gear (213) is fixed at the driving end of each pushing screw (212), one end of each motor gear (213) is meshed with the corresponding screw gear (216) through a tooth, a pushing rod (217) extending to the inner side of the second cylinder (210) is fixed at the center position, a pushing rod (217) extending to the inner side of the second cylinder (210) is connected to the right end of the second cylinder (210), and the sliding plate (218) is connected to the left end of the second sliding block (204) of the second cylinder (210) through threads The second oil pipes (211) are filled with hydraulic oil.
4. A shield casing correction device according to claim 3, wherein: the supporting mechanism comprises two hollow square columns (301) fixed at two ends of the lower side of the sliding rail (104), the lower ends of the hollow square columns (301) are respectively inserted with telescopic columns (302) in a sliding mode, the upper ends of the telescopic columns (302) are respectively elastically connected with the inner top ends of the hollow square columns (301) through rubber press blocks (303), a pressing wheel shaft (304) is rotatably connected between the two telescopic columns (302), and a plurality of supporting wheels (305) are fixed on the outer sides of the pressing wheel shafts (304) at equal intervals.
5. The shield casing correction device according to claim 1, wherein: the angle positioning mechanism comprises an electric telescopic rod (401) arranged at the top end of the inner side of a hollow cylinder (4), a guide column (402) fixed at the bottom end of the inner side of the hollow cylinder (4) and four positioning inner supporting plates (405) which are slidably inserted into the side surface of the hollow cylinder (4), lifting rods (403) are sleeved on the outer side of the guide column (402) in a sliding mode, the telescopic ends of the electric telescopic rod (401) are fixedly connected with the upper ends of the lifting rods (403), and the outer sides of the lifting rods (403) are rotatably connected with one sides of the four positioning inner supporting plates (405) through a plurality of connecting rods (404).
6. A shield casing correction device according to claim 2, wherein: one side of the first U-shaped frame (201) is fixed with a pointer (107) at the middle section position, and a dial is arranged at the position of one side of the sliding rail (104) corresponding to the pointer (107).
7. A shield casing correction device according to claim 3, wherein: the end surface area of the second piston plate (218) is smaller than the end surface area of the first piston plate (207).
8. The shield casing correction device according to claim 1, wherein: the thread lift angle between the diameter adjusting screw rod (105) and the first screw rod sliding block (106) is smaller than the friction angle.
9. The shield machine shell correction method according to claim 1, wherein the shield machine shell correction device according to any one of claims 4 and 5 comprises the following steps:
step one, rotating the lantern ring (101) of each segment correcting mechanism to make the included angle between each segment correcting mechanism equal, then controlling the telescopic end of the electric telescopic rod (401) of the angle positioning mechanism to extend to drive the lifting rod (403) to move downwards, driving a plurality of connecting rods (404) on the outer side of the lifting rod (403) to rotate, and synchronously ejecting the four positioning inner supporting plates (405) outwards by the rotation of the plurality of connecting rods (404), so that the four positioning inner supporting plates (405) are abutted against the inner side of each lantern ring (101) from the inner side, thereby fixing the lantern ring (101) of each segment correcting mechanism with the outer side of the hollow cylinder (4), fixing the angle of each segment correcting mechanism, and uniformly arranging the segment correcting mechanisms;
step two, controlling a pushing motor (212) of a piston pushing locking mechanism to operate so as to drive a motor gear (213) to rotate, driving a plurality of screw rod gears (216) to rotate through teeth by the rotation of the motor gear (213), driving a plurality of pushing screws (215) to rotate by the plurality of screw rod gears (216), driving a push plate (214) and a pushing rod (217) to move by the rotation of the plurality of pushing screws (215), and driving a second piston plate (218) to move on the inner side of a second cylinder (210) by the pushing rod (217);
and thirdly, the second piston plate (218) moves to push hydraulic oil in the second cylinder (210) into the left end space of the second sliding block (204) in the extrusion shaping mechanism through the second oil pipe (211), the hydraulic oil pressure in the left end space of the second sliding block (204) is increased, and as the first piston plate (207) is fixed, the second sliding block (204) can move leftwards towards the middle section position of the fixed rod (202) under the action of the hydraulic oil pressure, when the second sliding block (204) moves leftwards, the hydraulic oil in the right end space of the second sliding block is pushed into the right end space of the first sliding block (203) through the first oil pipe (208), so that the first sliding block (203) can be driven to move rightwards, the moving directions of the first sliding block (203) and the second sliding block (204) are opposite, the moving speeds are equal, and accordingly, the two second U-shaped frames (205) are driven to move reversely, the two extrusion correcting rollers (206) are driven to move reversely, and the two extrusion correcting rollers (206) are abutted against the inner side and outer side of the cylinder shell from the inner side to the outer side, and the shield shaping can be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375104.6A CN117340052A (en) | 2023-10-23 | 2023-10-23 | Shield tunneling machine shell correction device and correction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375104.6A CN117340052A (en) | 2023-10-23 | 2023-10-23 | Shield tunneling machine shell correction device and correction method |
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| Publication Number | Publication Date |
|---|---|
| CN117340052A true CN117340052A (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311375104.6A Pending CN117340052A (en) | 2023-10-23 | 2023-10-23 | Shield tunneling machine shell correction device and correction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118385330A (en) * | 2024-04-28 | 2024-07-26 | 安徽坤泰车辆动力科技有限公司 | Working heat guide pipe machining device of hybrid engine |
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2023
- 2023-10-23 CN CN202311375104.6A patent/CN117340052A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118385330A (en) * | 2024-04-28 | 2024-07-26 | 安徽坤泰车辆动力科技有限公司 | Working heat guide pipe machining device of hybrid engine |
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