CN114993863B - Metal fatigue resistance detection device - Google Patents
Metal fatigue resistance detection device Download PDFInfo
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- CN114993863B CN114993863B CN202210625041.4A CN202210625041A CN114993863B CN 114993863 B CN114993863 B CN 114993863B CN 202210625041 A CN202210625041 A CN 202210625041A CN 114993863 B CN114993863 B CN 114993863B
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- 239000002184 metal Substances 0.000 title claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a metal fatigue resistance detection device, which comprises a base, and a clamp assembly and a detection assembly which are respectively arranged on the base; an inverted U-shaped frame is arranged on the base; the detection assembly comprises a driving motor, a motor side crank, a planetary gear, an annular gear, a gear side crank, a connecting rod, a piston, a guide seat, a mounting rod and a hammer head, wherein an output shaft of the driving motor is fixedly connected with the motor side crank, one end of the motor side crank is rotationally connected with the axle center of the planetary gear, the planetary gear is meshed with the annular gear, one end of the gear side crank is fixedly connected with the axle center of the planetary gear, the other end of the gear side crank is rotationally connected with one end of the connecting rod, a first sliding groove arranged along the vertical central line of the annular gear is formed in one side of the guide seat, the piston is slidingly arranged in the first sliding groove, the other end of the connecting rod penetrates through the transverse wall of the U-shaped frame to be rotationally connected with the top of the piston, the bottom of the piston is fixedly connected with the mounting rod, and the bottom of the mounting rod is fixedly connected with the hammer head.
Description
Technical Field
The invention relates to the technical field of metal detection, in particular to a metal fatigue resistance detection device.
Background
The metal fatigue refers to the process that under the action of cyclic stress or cyclic strain, materials and components gradually generate local permanent accumulated damage at one or more positions, and cracks are generated or complete fracture is suddenly generated after a certain number of cycles. When materials and structures are subjected to repeated loads, the stress value does not exceed the strength limit of the materials all the time, and even is lower than the elastic limit, the materials and structures can be damaged, and the phenomena of damage to the materials and structures under the repeated action of alternating loads are called fatigue damage of metals.
Therefore, in order to produce safety, it is often necessary to detect the fatigue resistance of the metal tube, at present, most of common anti-fatigue detection devices adopt a simple crank structure to drive a hammer body to hammer the metal tube, namely, the crank drives a connecting rod and a piston to drive the hammer body, but the simple structure directly drives the connecting rod and the piston to drive the hammer body through the crank, so that radial force is easily generated at the piston, the device is not only enabled to generate larger vibration, but also the error of the detection result is easily caused to be overlarge.
Disclosure of Invention
The invention provides a metal fatigue resistance detection device for solving the problems in the prior art.
The technical scheme adopted by the invention is as follows:
The device comprises a base, a clamp assembly and a detection assembly, wherein the clamp assembly is respectively arranged on the base and used for fixing a metal pipe, and the detection assembly is used for detecting the force applied to the metal pipe; the base is provided with an inverted U-shaped frame, and the bottom ends of two longitudinal walls of the U-shaped frame are fixedly connected with the top of the base; the detection assembly comprises a driving motor, a motor side crank, a planetary gear, an annular gear, a gear side crank, a connecting rod, a piston, a guide seat, a mounting rod and a hammer head, wherein the driving motor is fixedly arranged at the top of the transverse wall of the U-shaped frame, the annular gear is fixedly arranged at the top of the transverse wall of the U-shaped frame and positioned at one side of an output shaft of the driving motor, the output shaft of the driving motor is fixedly connected with the motor side crank, one end of the motor side crank is rotationally connected with the axis of the planetary gear, the planetary gear is meshed with the annular gear, one end of the gear side crank is fixedly connected with the axis of the planetary gear, the other end of the gear side crank is rotationally connected with one end of the connecting rod, the diameter of the annular gear is twice the diameter of the planetary gear, the rotating axis of the connecting rod is positioned on a dividing circle of the planetary gear, the guide seat is vertically and fixedly arranged at the bottom of the transverse wall of the U-shaped frame, one side of the guide seat is provided with a first chute arranged along the vertical center line of the annular gear, the piston is slidingly arranged in the first chute, the other end of the piston penetrates through the transverse wall of the U-shaped frame and is fixedly connected with the top of the piston, and is fixedly connected with the bottom of the mounting rod; the clamp assembly is fixedly arranged at the top of the base and positioned below the hammer head.
Preferably, the fixture assembly comprises a mounting seat, a fixing block, a sliding block and a fixture, wherein the mounting seat is fixedly arranged at the top of the base, a second sliding groove is formed in the top of the mounting seat, the fixing block is fixedly arranged at one end of the second sliding groove, the sliding block is slidably arranged at the other end of the second sliding groove, and the fixtures are respectively arranged on opposite side surfaces of the fixing block and the sliding block.
Preferably, a screw rod is arranged in the second sliding groove, one end of the screw rod is rotationally connected with the lower part of the fixed block, the other end of the screw rod is in threaded connection with the lower part of the sliding block and penetrates through the side wall of the mounting seat to extend to the outer side of the mounting seat, the other end of the screw rod is rotationally connected with the mounting seat, and a part of the other end of the screw rod exposed out of the outer side of the mounting seat is fixedly connected with a handle.
Preferably, the fixture comprises a chuck, clamping plates and clamping columns, one side of the chuck is respectively connected with one side of the chuck opposite to the fixed block and the sliding block in a rotating way through a rotating shaft, one end of the rotating shaft on the chuck corresponding to the fixed block penetrates through the fixed block and then is connected with an output shaft of a driving motor through a transmission assembly, the side walls of the chuck are uniformly distributed and provided with a plurality of clamping columns which are arranged along the radial direction of the chuck in a penetrating way, the clamping columns are in sliding connection with the side walls of the chuck, one end of each clamping column, which is located at the inner side of the chuck, is fixedly connected with a clamping plate, one end of each clamping column, which is located at the outer side of the chuck, is fixedly connected with a baffle, and a spring is connected between the baffle and the side walls of the chuck.
Preferably, the transmission assembly comprises a worm wheel, a transmission shaft, a driving bevel gear and a driven bevel gear, one part of an output shaft of the driving motor is a worm, the worm wheel is connected with the worm in a meshed manner, the top end of the transmission shaft is fixedly connected with the axis of the worm wheel, the bottom end of the transmission shaft penetrates through the transverse wall of the U-shaped frame and is rotationally connected with the transverse wall of the U-shaped frame, the bottom end of the transmission shaft is fixedly connected with the driving bevel gear, the driving bevel gear is connected with the driven bevel gear in a meshed manner, and one end of the rotation shaft corresponding to the fixing block is fixedly connected with the axis of the driven bevel gear.
Preferably, the axle center department of driven bevel gear, pivot, chuck and fixed block and sliding block correspond the position and seted up the cavity that runs through of mutual intercommunication, the inside wall of cavity is equipped with the internal thread, cavity threaded connection has the threaded rod, the one end of threaded rod extends to in the chuck and fixedly connected with toper chuck, the other end of threaded rod extends to outside the cavity and fixedly connected with handle.
Preferably, the bottom of the hammer head is rotatably connected with a roller.
Preferably, a film pressure sensor is arranged between the hammer head and the mounting rod, a display screen is fixedly arranged on the base, and the film pressure sensor is connected with the display screen through a lead signal.
The beneficial effects of the invention are as follows:
1. The driving motor drives the connecting rod to drive the hammer head to hammer the metal pipe to finish detection through the cooperation of the motor side crank, the inner gear ring, the planetary gear and the gear side crank, and the connecting rod can move up and down along the vertical middle line of the inner gear ring because the diameter of the inner gear ring is twice that of the planetary gear, and the rotating shaft center of the connecting rod rotationally connected with the gear side crank is positioned on the dividing circle of the planetary gear, so that acting force in the radial direction can not be generated on the piston, vibration can be reduced, and detection accuracy can be improved;
2. the metal tube is fixed by the clamp, and the distance between the sliding block and the fixed block can be adjusted to adapt to metal tubes with different lengths, so that the metal tube can be conveniently installed;
3. The hammer head is driven to hammer the metal pipe and drive the metal pipe to rotate simultaneously through the same driving motor, so that the cost of the device is reduced;
4. For the metal pipe with larger diameter, the metal pipe with smaller diameter can be clamped from the outer periphery through the clamping plate, and for the metal pipe with larger diameter, the metal pipe with smaller diameter can be clamped from the inner periphery through the conical clamping head, so that the application range is wide.
Drawings
FIG. 1 is a schematic diagram of a conventional crank-link mechanism and its operation;
FIG. 2 is a schematic diagram of a front view of an embodiment of the present invention;
FIG. 3 is a schematic right-view diagram of a detecting component according to an embodiment of the present invention;
FIG. 4 is a schematic diagram showing the front view of the clamp assembly and its operation in accordance with the embodiment of the present invention;
reference numerals: 1. crank, 2, connecting rod, 3, piston, 4, base, 5, "U" shaped frame, 6, driving motor, 7, motor side crank, 8, planetary gear, 9, ring gear, 10, gear side crank, 11, connecting rod, 12, piston, 13, guide holder, 14, mounting rod, 15, hammer head, 16, mounting seat, 17, fixed block, 18, sliding block, 19, screw rod, 20, handle, 21, chuck, 22, clamping plate, 23, clamping post, 24, rotating shaft, 25, baffle, 26, spring, 27, first bevel gear, 28, second bevel gear, 29, transmission shaft, 30, driving bevel gear, 31, driven bevel gear, 32, threaded rod, 33, conical chuck, 34, roller, 35, film pressure sensor, 36, display screen.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in FIG. 2, the metal fatigue resistance detection device comprises a base 4, a clamp assembly and a detection assembly, wherein the clamp assembly is respectively arranged on the base 4 and used for fixing a metal pipe, and the detection assembly is used for detecting the force applied to the metal pipe; an inverted U-shaped frame 5 is arranged on the base 4, and the bottom ends of two longitudinal walls of the U-shaped frame 5 are fixedly connected with the top of the base 4; the detection assembly comprises a driving motor 6, a motor side crank 7, a planetary gear 8, an annular gear 9, a gear side crank 10, a connecting rod 11, a piston 12, a guide seat 13, a mounting rod 14 and a hammer 15, wherein the driving motor 6 is fixedly arranged at the top of the transverse wall of the U-shaped frame 5, the annular gear 9 is fixedly arranged at the top of the transverse wall of the U-shaped frame 5 and is positioned at one side of an output shaft of the driving motor 6, the output shaft of the driving motor 6 is fixedly connected with the motor side crank 7, one end of the motor side crank 7 is rotationally connected with the axis of the planetary gear 8, the planetary gear 8 is meshed with the annular gear 9, one end of the gear side crank 10 is rotationally connected with the axis of the planetary gear 8, the other end of the gear side crank 10 is rotationally connected with one end of the connecting rod 11, the diameter of the annular gear 9 is twice that of the diameter of the planetary gear 8, the connecting rod 11 is positioned on an indexing circle of the transverse wall of the planetary gear 8, the guide seat 13 is vertically fixedly arranged at the bottom of the transverse wall of the U-shaped frame 5, one side of the guide seat 13 is fixedly arranged at the bottom of the transverse wall of the piston 12, the piston 12 is fixedly arranged along the first side of the piston 12, the piston 11 is fixedly connected with the top of the piston 11, and is fixedly arranged at the bottom of the piston 12, which is fixedly connected with the piston 12, and is fixedly arranged at the top 12; the clamp assembly is fixedly arranged at the top of the base 4 and is positioned below the hammer 15.
As shown in fig. 1, in the conventional crank 1 and connecting rod 2 mechanism, one end of the crank 1 is fixed, and the other end performs circular motion to drive one end of the connecting rod 2, so as to drive the other end of the connecting rod 2 to perform linear motion, a linear motion path of the piston 3 is taken as a central line, the positions of one end of the connecting rod 2 are alternated on two sides of the central line, when an included angle exists between the connecting rod 2 and the central line, acting force in a radial direction is generated on the piston 3, and vibration is generated when the direction of the acting force is alternated positively and negatively, and meanwhile, part of energy provided by the crank 1 is consumed in an ineffective way.
The crank connecting rod mechanism is improved, the annular gear 9 and the planetary gears 8 are arranged, the diameter of the annular gear 9 is twice that of the planetary gears 8, one end of the gear side crank 10 is fixedly connected with the axle center of the planetary gears 8, the rotation axle center of the connecting rod 11 rotationally connected with the gear side crank 10 is positioned on the indexing circle of the planetary gears 8, and when the axle center of the planetary gears 8 and the axle center of the annular gear 9 are positioned on the same horizontal plane, the rotation axle center of the connecting rod 11 rotationally connected with the gear side crank 10 is positioned at the center of the annular gear 9. Therefore, when the driving motor 6 drives the planetary gear 8 to rotate in the ring gear 9 through the motor side crank 7, the rotation axis of the rotational connection of the connecting rod 11 and the gear side crank 10 moves up and down along the vertical middle line of the ring gear 9, and the connecting rod 11 moves up and down along the vertical middle line of the ring gear 9 as the other end of the connecting rod 11 and the piston 12 also move up and down along the vertical middle line of the ring gear 9, so that the force in the radial direction generated at the piston 12 is greatly reduced, the vibration is greatly reduced, and the ineffective consumption of the driving motor 6 is also reduced. According to the invention, the hammer 15 is driven by the improved crank connecting rod mechanism to hammer the metal pipe fixed by the clamp assembly, so that the fatigue resistance detection of the metal material is finished, and the whole device has a good vibration reduction effect and high energy utilization rate. In order to balance the weight of the two sides of the motor side crank 7 and further reduce vibration, a balancing weight can be arranged at the other end of the motor side crank 7 opposite to the connecting planetary gear 8, and the weight of the balancing weight is suitable for meeting the requirement of matching of the loads at the two ends of the motor side crank 7.
In one embodiment, the fixture assembly comprises a mounting seat 16, a fixing block 17, a sliding block 18 and a fixture, wherein the mounting seat 16 is fixedly arranged at the top of the base 4, a second sliding groove is formed in the top of the mounting seat 16, the fixing block 17 is fixedly arranged at one end of the second sliding groove, the sliding block 18 is slidably arranged at the other end of the second sliding groove, and the fixtures are respectively arranged on opposite side surfaces of the fixing block 17 and the sliding block 18.
The metal pipe is fixed through the two clamps on the fixed block 17 and the sliding block 18, and the distance between the movable sliding block 18 and the fixed block 17 can be adjusted, so that the metal pipe can be conveniently installed into the two clamps, and the metal pipe can be suitable for metal pipes with different lengths.
In one embodiment, a screw rod 19 is disposed in the second sliding groove, one end of the screw rod 19 is rotatably connected with the lower portion of the fixed block 17, the other end of the screw rod 19 is in threaded connection with the lower portion of the sliding block 18 and extends to the outer side of the mounting seat 16 through the side wall of the mounting seat 16, the other end of the screw rod 19 is rotatably connected with the mounting seat 16, and a portion of the other end of the screw rod 19 exposed to the outer side of the mounting seat 16 is fixedly connected with a handle 20. The sliding block 18 can be moved by rotating the screw rod 19 through the handle 20.
In one embodiment, the fixture comprises a chuck 21, clamping plates 22 and clamping columns 23, one side of the chuck 21 is respectively connected with one side opposite to the fixed block 17 and the sliding block 18 in a rotating way through a rotating shaft 24, one end of the rotating shaft 24 on the chuck 21 corresponding to the fixed block 17 penetrates through the fixed block 17 and is connected with an output shaft of the driving motor 6 in a transmission way through a transmission component, the side walls of the chuck 21 are uniformly distributed and provided with a plurality of clamping columns 23 arranged along the radial direction of the chuck 21 in a penetrating way, the clamping columns 23 are in sliding connection with the side walls of the chuck 21, one end of the clamping columns 23 positioned at the inner side of the chuck 21 is fixedly connected with the clamping plates 22, one end of the clamping columns 23 positioned at the outer side of the chuck 21 is fixedly connected with a baffle 25, and springs 26 are connected between the baffle 25 and the side walls of the chuck 21.
When fixing the metal tube, the sliding block 18 is moved to have enough distance from the fixed block 17, the clamping column 23 on the chuck 21 of the fixed block 17 is pulled out, the baffle 25 is arranged to facilitate pulling of the clamping column 23, then one end of the metal tube is placed into the chuck 21 of the fixed block 17, then the clamping column 23 is loosened, then the clamping column 23 on the chuck 21 of the sliding block 18 is pulled out, the sliding block 18 is moved towards the fixed block 17, the other end of the metal tube enters the chuck 21 of the sliding block 18, finally the clamping column 23 on the chuck 21 of the sliding block 18 is loosened, and the clamping plate 22 is pressed by the spring 26 to fix the metal tube.
In one embodiment, the transmission assembly includes a worm wheel, a transmission shaft 29, a drive bevel gear 30 and a driven bevel gear 31, a part of an output shaft of the driving motor 6 is a worm, the worm wheel is in meshed connection with the worm, the top end of the transmission shaft 29 is fixedly connected with the axle center of the worm wheel, the bottom end of the transmission shaft 29 penetrates through the transverse wall of the "U" shaped frame 5 and is rotationally connected with the transverse wall of the "U" shaped frame 5, the bottom end of the transmission shaft 29 is fixedly connected with the drive bevel gear 30, the drive bevel gear 30 is in meshed connection with the driven bevel gear 31, and one end of the rotation shaft 24 corresponding to the fixed block 17 is fixedly connected with the axle center of the driven bevel gear 31.
The hammer 15 is driven by the output shaft of the driving motor 6 and simultaneously drives the metal tube to rotate through the transmission assembly, so that hammering of different positions of the metal tube is realized, the hammer 15 is prevented from being hammered at the same position all the time, the detection precision is improved, meanwhile, the power source is also saved, and the cost is saved. The first bevel gear 27 on the output shaft of the driving motor 6 drives the second bevel gear 28 to rotate, then drives the transmission shaft 29, the driving bevel gear 30 and the driven bevel gear 31, and finally drives the rotating shaft 24 and the chuck 21 on the fixed block 17 to rotate so as to realize the rotation of the metal tube.
In one embodiment, the driven bevel gear 31, the rotating shaft 24, the shaft center of the chuck 21, and the corresponding positions of the fixed block 17 and the sliding block 18 are provided with mutually communicated through cavities, the inner side walls of the cavities are provided with internal threads, the cavities are in threaded connection with threaded rods 32, one ends of the threaded rods 32 extend into the chuck 21 and are fixedly connected with conical chucks 33, and the other ends of the threaded rods 32 extend out of the cavities and are fixedly connected with handles 20.
The threaded rod 32, which is screwed into the cavity, is used to adjust the position of the conical collet 33, and when the outer diameter of the metal tube is small, the clamping plates 22 may not be able to clamp the metal tube completely due to the mutual blocking, in which case the metal tube can be fixed from the inside by the conical collet 33. When the conical chuck 33 is needed, the sliding block 18 is moved to have enough distance from the fixed block 17, the threaded rod 32 on one side of the fixed block 17 is rotated by the handle 20 to enable the conical chuck 33 to extend, one end of the metal tube is sleeved on the conical chuck 33 on one side of the fixed block 17, then the threaded rod 32 on one side of the sliding block 18 is rotated by the handle 20 to enable the conical chuck 33 to extend, the sliding block 18 is moved towards the fixed block 17, and the conical chuck 33 on one side of the sliding block 18 enters the other end of the metal tube to fix the metal tube.
In one embodiment, a roller 34 is rotatably connected to the bottom of the hammer 15.
The roller 34 can reduce the hammering force of the hammer 15 into friction force in the rotation process of the metal tube, and improve the detection precision.
In one embodiment, a film pressure sensor 35 is disposed between the hammer 15 and the mounting rod 14, a display screen 36 is fixedly disposed on the base 4, and the film pressure sensor 35 is in signal connection with the display screen 36 through a wire.
The hammer head 15 continuously hammers the metal rod to cause bending fatigue damage to the metal rod, namely, the film pressure sensor 35 can measure the maximum radial load which can be borne by the metal rod, the hammering force of the hammer head 15 can be adjusted through the driving motor 6, the hammering speed of the hammer head 15 can be changed, the hammering force can be changed, and the data measured by the film pressure sensor 35 can be displayed through a display.
The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (8)
1. The device for detecting the metal fatigue resistance is characterized by comprising a base (4), a clamp assembly and a detection assembly, wherein the clamp assembly is respectively arranged on the base (4) and used for fixing a metal pipe, and the detection assembly is used for detecting the force applied to the metal pipe; an inverted U-shaped frame (5) is arranged on the base (4), and the bottom ends of the two longitudinal walls of the U-shaped frame (5) are fixedly connected with the top of the base (4); the detection assembly comprises a driving motor (6), a motor side crank (7), a planet gear (8), an inner gear ring (9), a gear side crank (10), a connecting rod (11), a piston (12), a guide seat (13), a mounting rod (14) and a hammer head (15), wherein the driving motor (6) is fixedly arranged at the top of the transverse wall of a U-shaped frame (5), the inner gear ring (9) is fixedly arranged at the top of the transverse wall of the U-shaped frame (5) and is positioned at one side of an output shaft of the driving motor (6), the output shaft of the driving motor (6) is fixedly connected with the motor side crank (7), one end of the motor side crank (7) is in meshed connection with the axis of the planet gear (8), one end of the gear side crank (10) is in meshed connection with the axis of the planet gear (8), the other end of the gear side crank (10) is in rotary connection with one end of the connecting rod (11), the diameter of the inner gear ring (9) is twice the diameter of the planet gear (8), one end (11) is in rotary connection with one end of the connecting rod (10) and is positioned at the bottom of the transverse wall of the U-shaped frame (13) which is in vertical indexing direction, a first chute arranged along the vertical central line of the annular gear (9) is formed in one side of the guide seat (13), the piston (12) is arranged in the first chute in a sliding manner, the other end of the connecting rod (11) penetrates through the transverse wall of the U-shaped frame (5) and is rotationally connected with the top of the piston (12), a yielding hole matched with the connecting rod (11) is formed in the transverse wall of the U-shaped frame (5), the bottom of the piston (12) is fixedly connected with the mounting rod (14), and the bottom of the mounting rod (14) is fixedly connected with the hammer head (15); the clamp assembly is fixedly arranged at the top of the base (4) and is positioned below the hammer head (15).
2. The metal fatigue resistance detection device according to claim 1, wherein the clamp assembly comprises a mounting seat (16), a fixed block (17), a sliding block (18) and a clamp, the mounting seat (16) is fixedly arranged at the top of the base (4), a second sliding groove is formed in the top of the mounting seat (16), the fixed block (17) is fixedly arranged at one end of the second sliding groove, the sliding block (18) is slidably arranged at the other end of the second sliding groove, and the opposite side surfaces of the fixed block (17) and the sliding block (18) are respectively provided with the clamp.
3. The metal fatigue resistance detection device according to claim 2, wherein a screw rod (19) is arranged in the second sliding groove, one end of the screw rod (19) is rotationally connected with the lower part of the fixed block (17), the other end of the screw rod (19) is in threaded connection with the lower part of the sliding block (18) and penetrates through the side wall of the mounting seat (16) to extend to the outer side of the mounting seat (16), the other end of the screw rod (19) is rotationally connected with the mounting seat (16), and a handle (20) is fixedly connected with the part of the other end of the screw rod (19) exposed to the outer side of the mounting seat (16).
4. The metal fatigue resistance detection device according to claim 2, wherein the clamp comprises a chuck (21), a clamping plate (22) and a clamping column (23), one side of the chuck (21) is respectively connected with one side opposite to the fixed block (17) and the sliding block (18) in a rotating way through a rotating shaft (24), one end of the rotating shaft (24) on the chuck (21) corresponding to the fixed block (17) penetrates through the fixed block (17) and is connected with an output shaft of the driving motor (6) through a transmission assembly, side walls of the chuck (21) are uniformly distributed and penetrate through a plurality of clamping columns (23) arranged along the radial direction of the chuck (21), the clamping columns (23) are connected with the side walls of the chuck (21) in a sliding way, one end of the clamping column (23) located inside the chuck (21) is fixedly connected with the clamping plate (22), one end of the clamping column (23) located outside the chuck (21) is fixedly connected with a baffle (25), and a spring (26) is connected between the baffle (25) and the side walls of the chuck (21).
5. The metal fatigue resistance detection device according to claim 4, wherein the transmission assembly comprises a worm wheel, a transmission shaft (29), a driving bevel gear (30) and a driven bevel gear (31), a part of an output shaft of the driving motor (6) is a worm, the worm wheel is in meshed connection with the worm, the top end of the transmission shaft (29) is fixedly connected with the axis of the worm wheel, the bottom end of the transmission shaft (29) penetrates through the transverse wall of the U-shaped frame (5) and is in rotary connection with the transverse wall of the U-shaped frame (5), the bottom end of the transmission shaft (29) is fixedly connected with the driving bevel gear (30), the driving bevel gear (30) is in meshed connection with the driven bevel gear (31), and one end of a rotating shaft (24) corresponding to the fixed block (17) is fixedly connected with the axis of the driven bevel gear (31).
6. The metal fatigue resistance detection device according to claim 5, wherein the driven bevel gear (31), the rotating shaft (24), the shaft center of the chuck (21) and the corresponding positions of the fixed block (17) and the sliding block (18) are provided with mutually communicated penetrating cavities, the inner side walls of the cavities are provided with internal threads, the cavities are in threaded connection with threaded rods (32), one ends of the threaded rods (32) extend into the chuck (21) and are fixedly connected with conical chucks (33), and the other ends of the threaded rods (32) extend out of the cavities and are fixedly connected with handles (20).
7. The metal fatigue resistance detection device according to claim 1, wherein the bottom of the hammer head (15) is rotatably connected with a roller (34).
8. The metal fatigue resistance detection device according to claim 1, wherein a film pressure sensor (35) is arranged between the hammer head (15) and the mounting rod (14), a display screen (36) is fixedly arranged on the base (4), and the film pressure sensor (35) is connected with the display screen (36) through a lead signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625041.4A CN114993863B (en) | 2022-06-02 | 2022-06-02 | Metal fatigue resistance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625041.4A CN114993863B (en) | 2022-06-02 | 2022-06-02 | Metal fatigue resistance detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114993863A CN114993863A (en) | 2022-09-02 |
| CN114993863B true CN114993863B (en) | 2024-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210625041.4A Active CN114993863B (en) | 2022-06-02 | 2022-06-02 | Metal fatigue resistance detection device |
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