CN114483794B - Combined retainer for main bearing of heading machine and assembling method thereof - Google Patents
Combined retainer for main bearing of heading machine and assembling method thereof Download PDFInfo
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- CN114483794B CN114483794B CN202210087425.5A CN202210087425A CN114483794B CN 114483794 B CN114483794 B CN 114483794B CN 202210087425 A CN202210087425 A CN 202210087425A CN 114483794 B CN114483794 B CN 114483794B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
- F16C33/485—Cages for rollers or needles for multiple rows of rollers or needles with two or more juxtaposed cages joined together or interacting with each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
- F16C33/502—Cages for rollers or needles formed of interconnected members, e.g. chains formed of arcuate segments retaining one or more rollers or needles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/56—Selection of substances
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a combined retainer for a main bearing of a heading machine and an assembly method thereof. Wherein the pocket hole block and the clamping block are made of steel so as to improve the bearing capacity of the combined retainer, the connecting table is made of copper, and the connecting table is provided with a flange surface and a roller way surface, so that the wear-resisting capacity of the combined retainer is improved. The pocket block and the clamping block are quenched before being processed to enhance the hardness, the manufacturing precision is improved by independently processing in a die, the pocket block, the first clamping block, the second clamping block and the connecting table are detachably connected, and then the adhesive joint filling gap is used for adhesive joint anti-loose treatment. Therefore, the combined retainer has the characteristics of high strength, high precision, high stability and the like, the reliability and the safety of the main bearing of the heading machine are improved, and the service life of the heading machine is prolonged.
Description
Technical Field
The invention relates to the field of main bearings of heading machines, in particular to a combined retainer for a main bearing of a heading machine and an assembly method thereof.
Background
The tunneling machine is an engineering machine for tunneling, integrates mechanical, electrical, hydraulic, sensing, information technology and other systems, can perform tunneling work of long-distance, high-depth and large-diameter tunnels, can adapt to severe working environments, and has high automation and intelligent degrees. With the rapid development of national economy, many central cities are expanding outwards and perfecting underground traffic systems, and meanwhile, some emerging cities are developing underground spaces to build subway tunnels, so the demands for development machines are still increasing.
When the tunneling machine performs tunneling work, the main bearing plays a very important role, and the main bearing is required to bear extremely large axial force, radial force and overturning moment and simultaneously transmit the turning moment required by the rotation of the cutterhead. The main bearing of the heading machine mainly comprises an outer ring, two inner rings, three rows of rolling bodies and a retainer, wherein the main bearing retainer is used as a key component of the main bearing and has the main function of keeping proper intervals among the rolling bodies. In addition, in the main bearing of the heading machine, the retainer is contacted with the rolling bodies and the inner and outer ferrule guide flanges, and the running condition of the retainer is also important to the running performance of the main bearing.
Currently, all-copper retainers and steel-welded copper retainers are mainly used in main bearings of heading machines, and compared with retainers with all-copper structures, the steel-welded copper retainers are low in production and manufacturing cost, so that the steel-welded copper retainers tend to be selected for saving the manufacturing cost of the main bearings. The support leg and the guide block of the steel welded copper retainer are welded with the retainer main body, and although the welding method is good in integrity, simple in process and high in adaptability, the workpiece is easy to deform due to the influence of residual stress, the welding quality is very influenced by operators, special detection is needed after the welding is finished, and the disassembly is difficult. Meanwhile, when the steel welded copper retainer pocket is processed at present, the depth is large, and the perpendicularity and the roughness are difficult.
Therefore, how to avoid deformation influence caused by welding, save manufacturing cost caused by detection steps, make the combined retainer convenient to detach and remanufacture, and simultaneously realize high-precision processing of the pocket is a problem to be solved by the current technicians in the field.
Disclosure of Invention
The invention aims to avoid deformation influence caused by welding, save manufacturing cost caused by welding line detection, realize high-precision processing of pockets, enable a combined retainer to be convenient to detach and remanufacture, improve reliability and safety of a main bearing of a development machine, and prolong service life of the development machine.
The combined retainer comprises a pocket block, a first clamping block, a second clamping block and a main bearing retainer formed by a connecting table, wherein two ends of the pocket block are respectively detachably connected with the first clamping block and the second clamping block, and the connecting table is respectively detachably connected with the first clamping block and the second clamping block; the pocket block is provided with a pocket, and the connecting table is provided with a roller surface and a flange surface.
Preferably, the detachable connection is a bolted connection.
Preferably, the first clamping block and the second clamping block are provided with a first assembly hole for being connected with the connecting table and a first connection hole for being connected with the pocket block, the connecting table is provided with a second assembly hole matched with the first assembly hole, and the pocket block is provided with a second connection hole matched with the first connection hole.
Preferably, the first connecting holes on the first clamping block are equidistantly arranged on the first clamping block and correspond to the first connecting holes on the second clamping block.
Preferably, steps which can be combined with the pocket Kong Kuaika are arranged on the first clamping block and the second clamping block; the connecting table is provided with a step which can be clamped with the first clamping block and the second clamping block.
Preferably, the first clamping block, the second clamping block and the pocket block are all made of steel; the material of the connecting table is copper.
Preferably, the detachable connection further comprises gluing, and an adhesive is arranged in the gap of the combined retainer.
Furthermore, the invention also provides an assembling method of the combined retainer for assembling, which comprises the following specific steps:
The first step, quenching treatment and processing are carried out on the pocket block, the first clamping block and the second clamping block;
step two, clamping the pocket block with the first clamping block, adjusting the position of the pocket block to align a second connecting hole on the pocket block with the first connecting hole of the first clamping block, pre-tightening the pocket block by using a bolt, and repeating the steps until the first connecting hole on the first clamping block is used up;
Thirdly, closing the second clamping block with the pocket Kong Kuaika, adjusting the position of the pocket block to align the first connecting hole of the second clamping block with the corresponding second connecting hole on the pocket block, pre-tightening the second clamping block by using a bolt, and repeating the steps until the first connecting hole on the second clamping block is used up;
fourthly, clamping the connecting table with the first clamping block and the second clamping block, adjusting the position of the connecting table to align the first assembly hole with the second assembly hole, pre-tightening and connecting the connecting table with bolts, fastening the bolts in a staggered manner after the pre-tightening and connecting are completed, performing bonding and anti-loosening treatment on the connecting positions of the bolts by using glue joint, and filling the adhesive into the connecting gap to complete the assembly of the combined retainer.
In addition, the invention also provides a method for disassembling the combined retainer, which comprises the following specific steps:
Firstly, heating and softening an adhesive at the joint of the bolts;
Secondly, disassembling the bolts;
thirdly, heating and softening the adhesive at the gap;
and fourthly, decomposing the pocket block, the first clamping block, the second clamping block and the connecting table, and cleaning the adhesive on the surface to finish the disassembly of the combined retainer.
The technical scheme of the invention has the following beneficial effects:
1. the pocket block, the first clamping block and the second clamping block are made of steel materials, quenching treatment is carried out before machining, the strength, the rigidity, the wear resistance, the fatigue strength and the toughness of the pocket block are greatly improved, and the strength of the retainer and the bearing capacity of the main bearing are also improved.
2. The pocket block, the first clamping block and the second clamping block are independently machined before being assembled, so that the machining difficulty of the retainer is reduced, the machining precision and the machining efficiency of the pocket on the pocket block are improved, and the abrasion with the roller is reduced when the spindle is operated.
3. The connecting table is made of copper material and is in direct contact with the inner and outer ferrules, so that abrasion to the inner and outer ferrules can be reduced.
4. The bolt connection and the adhesive are used for bonding and anti-loosening treatment, so that the deformation influence caused by the heating process is avoided.
5. The adhesive is used for carrying out the cementing treatment on the connecting gap, so that the stress at the contact position is uniformly distributed, and the capability of the combined retainer for resisting the impact load can be improved to a certain extent.
6. The combined retainer can be detached, so that damaged parts can be replaced in time, and the main bearing is convenient to maintain and remanufacture.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of a main bearing structure of a heading machine;
FIG. 2 is a top view of a main push cage connection;
FIG. 3 is a schematic view of a main push pocket Kong Kuaijie;
FIG. 4 is a schematic view of the structure of the main push inner clamping block;
FIG. 5 is a schematic view of the structure of the main pushing outer clamping block;
FIG. 6 is a schematic view of a main pushing connection table;
FIG. 7 is a radial cage attachment view (top view);
FIG. 8 is a schematic view of a radial pocket Kong Kuaijie;
FIG. 9 is a schematic view of a radial clamp block structure;
Fig. 10 is a schematic view of a radial connection table.
Wherein 1-main cage, 11-main cage block, 111-main cage block outer connecting hole, 112-main cage block outer attaching surface, 113-main cage block inner wall surface, 114-main cage block inner attaching hole, 115-main cage block inner attaching surface, 12-main inner clamping block, 121-main inner clamping block assembling hole, 122-main inner clamping block connecting hole, 123-main inner clamping block attaching surface, 13-main outer clamping block, 131-main outer clamping block connecting hole, 132-main outer clamping block assembling hole, 133-main outer clamping block attaching surface, 14-main connecting table, 141-main connecting table flange surface, 142-main connecting table outer assembling hole, 143-main connecting table raceway attaching surface, 144-main connecting table inner assembling hole, 2-radial cage, 21-radial inner clamping block, 211-radial lower connecting hole, 212-radial lower clamping block attaching surface, 213-radial upper clamping block attaching surface, 214-radial inner clamping block attaching surface, 23-radial cage block attaching surface, 23-radial inner clamping block attaching surface, 23-radial cage block attaching table radial upper radial clamping block attaching surface, 23-radial cage block attaching table upper radial inner clamping block attaching surface, 23-radial cage block attaching cage block.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
The main bearing of the heading machine mainly comprises three ferrules, three rows of rollers and three rows of retainers, wherein the diameter surface of the ferrules, which is contacted with the rollers, is a raceway surface, and the diameter surface for guiding the retainers to move is a flange surface. When the main bearing of the heading machine works normally, certain friction can be generated on the raceway surface and the flange surface of the retainer, particularly under the condition of impact load, abrasion on the raceway surface and the flange surface is further increased, metal on the surface of the ferrule is peeled off and early failure is caused, and the service life of the main bearing of the heading machine is reduced.
Although the abrasion and damage to the ferrule can be reduced by welding the copper block, the steel welded copper retainer commonly used in the main bearing of the heading machine can inevitably cause deformation due to the existence of residual stress during welding, so that abnormal sound is very easy to generate during the working of the main bearing of the heading machine. Meanwhile, the deformation caused by the welding method directly affects the precision of the pocket during processing, and the precision of the pocket surface directly affects the abrasion of the roller, so that the whole retainer can be scrapped when any pocket processing is not satisfied.
In order to reduce the rejection rate of the main bearing retainer of the heading machine, improve the manufacturing precision of retainer pocket blocks and improve the operation reliability of the retainer, the embodiment provides a combined retainer for the main bearing of the heading machine.
As shown in fig. 1, the retainer on the main bearing of the heading machine comprises a main pushing retainer 1, a radial retainer 2 and an auxiliary pushing retainer 3, wherein the main pushing retainer 1 and the auxiliary pushing retainer 3 have the same structure.
As shown in fig. 2, the main pushing retainer 1 is a detachable combined retainer composed of a main pushing pocket block 11, a main pushing inner clamping block 12, a main pushing outer clamping block 13 and a main pushing connecting table 14, and the detachable connection is preferably a bolt connection in this embodiment.
Specifically, as shown in fig. 3, the main push pocket block 11 is provided with a groove, the groove surface is a main push pocket block inner wall surface 113, the main push pocket block outer fitting surface 112 and the main push pocket block inner fitting surface 115 are opposite to each other, one end of the main push pocket block 11, which is close to the main push pocket block outer fitting surface 112, is provided with a main push pocket block outer connecting hole 111, and one end of the main push pocket block 11, which is close to the main push pocket block inner fitting surface 115, is provided with a main push pocket block inner connecting hole 114.
Specifically, as shown in fig. 4, the main pushing inner clamping block 12 is an arc clamping block, a plurality of main pushing inner clamping block connecting holes 122 are equidistantly formed in the main pushing inner clamping block 12, two main pushing inner clamping block assembling holes 121 are respectively formed at two ends of the main pushing inner clamping block 12, and the main pushing inner clamping block attaching surface 123 is a groove surface for installing the main pushing pocket block 11.
Specifically, as shown in fig. 5, the outer main pushing clamping block 13 is an arc clamping block, the arc length of the outer main pushing clamping block is larger than that of the inner main pushing clamping block 12, a plurality of outer main pushing clamping block connecting holes 131 are formed in the outer main pushing clamping block 13 at equal intervals, the outer main pushing clamping block connecting holes 131 and the inner main pushing clamping block connecting holes 122 are correspondingly formed to connect the main pushing pocket block 11, two main pushing outer clamping block assembling holes 132 are formed in two ends of the outer main pushing clamping block 13 respectively, and the joint surface 133 of the outer main pushing clamping block is a groove surface for installing the main pushing pocket block 11.
Specifically, as shown in fig. 6, the main pushing connection table 14 is provided with a main pushing connection table flange surface 141 and a main pushing connection table raceway fitting surface 143, two opposite surfaces of the main pushing connection table 14 are provided with grooves, each groove is provided with two groups of through holes, namely a main pushing connection table outer assembly hole 142 matched with the main pushing outer clamping block assembly hole 132 and a main pushing connection table inner assembly hole 144 matched with the main pushing inner clamping block assembly hole 121.
In this embodiment, the preferred materials of the main pushing pocket block 11, the main pushing inner clamping block 12 and the main pushing outer clamping block 13 are steel, and the main pushing connecting table 14 is copper.
Further, the specific assembly method of the main pushing retainer 1 is as follows:
First, the main push pocket block 11 is quenched to increase its hardness, and the inner wall surface 113 of the main push pocket block is processed with high precision because the main push pocket block 11 has a smaller size than the main push holder 1.
Then, the assembly of the main pushing retainer 1 is started, the outer bonding surface 112 of any main pushing pocket block 11 is bonded to the main pushing outer clamping block bonding surface 133, the positions of the outer bonding surface 112 and the main pushing pocket block bonding surface 133 are moved to align the main pushing pocket block outer connecting hole 111 and the main pushing outer clamping block connecting hole 131, the bolts are used for pre-fastening, and the other main pushing pocket blocks 11 are sequentially pre-fastened and connected with the main pushing outer clamping blocks 13.
Further, the main pushing inner clamping block attaching surface 123 is attached to the main pushing inner clamping block attaching surface 115, the positions are adjusted to align the main pushing inner clamping block connecting holes 122 with the corresponding main pushing inner clamping block connecting holes 114, the bolts are used for pre-tightening, and the main pushing inner clamping block 11 is sequentially in pre-tightening connection with the main pushing inner clamping block 12.
Finally, the main pushing connection platform outer assembly hole 142 and the main pushing connection platform inner assembly hole 144 of the main pushing connection platform 14 are aligned with the main pushing outer clamp block assembly hole 132 and the main pushing inner clamp block assembly hole 121 respectively, the bolts are used for pre-tightening connection, the main pushing connection platforms 14 on two sides can be connected into other main pushing pocket blocks 11, main pushing inner clamp blocks 12 and main pushing outer clamp blocks 13, after all pre-tightening connection is completed, the bolts are fastened in a staggered manner, the bonding anti-loosening treatment is performed on the bolt connection positions by using bonding, then the connection is fastened by filling adhesive into the connection gaps, and the assembly of the main pushing retainer 1 is completed after the adhesive is fastened in a bonding manner.
As shown in fig. 7, the radial retainer 2 is a detachable retainer comprising radial pocket blocks 21, radial clamp blocks 22 and radial connection blocks 23, and it should be noted that, one radial retainer 2 includes two radial clamp blocks 22, and the detachable connection in this embodiment is preferably a bolt connection.
Specifically, as shown in fig. 8, the radial pocket block 21 is provided with a groove, the groove surface is a radial pocket block inner wall surface 215, the radial pocket block lower joint surface 212 and the radial pocket block upper joint surface 213 are opposite to each other, one end of the radial pocket block 21, which is close to the radial pocket block lower joint surface 212, is provided with a radial pocket block lower joint hole 211, one end of the radial pocket block 21, which is close to the radial pocket block upper joint surface 213, is provided with a radial pocket block upper joint hole 214, and the preferred material of the radial pocket block 21 in this embodiment is steel.
Specifically, as shown in fig. 9, the radial clamping blocks 22 are arc-shaped fixing flanges, a plurality of radial clamping block connecting holes 221 are equidistantly formed in the radial clamping blocks 22, two radial clamping block assembling holes 222 are respectively formed in two ends of the radial clamping blocks 22, and the radial clamping block fitting surface 223 is a groove surface for installing the radial pocket block 21.
Specifically, as shown in fig. 10, a radial connection table roller path bonding surface 233 is disposed on the radial connection table 23, a set of opposite surfaces on the radial connection table 23 are respectively provided with grooves, and two sets of through holes including a radial connection table lower assembly hole 231 and a radial connection table upper assembly hole 232 are disposed on each groove.
In this embodiment, the preferred radial pocket block 21 and the radial clamp block 22 are made of steel, and the radial connection block 23 is made of copper.
Further, the specific assembly method of the radial pocket block 21 is as follows:
firstly, the radial clamping blocks 22 are placed upwards, the radial pocket blocks 21 are sequentially installed in the radial clamping blocks 22, the radial clamping block joint surfaces 223 and the radial pocket block lower joint surfaces 212 are tightly attached, then the other radial clamping block 22 is covered above, the other radial clamping block joint surfaces 223 and the radial pocket block upper joint surfaces 213 are tightly attached, the positions of the two are adjusted to enable the other radial clamping block connecting holes 221 to be aligned with the radial pocket block upper connecting holes 214, and the bolts are sequentially used for pretightening connection.
Then, the radial clamping block 22 is turned over, the bonding surface 223 and the lower bonding surface 212 of the radial pocket block 21 are bonded again, the positions of the bonding surfaces are adjusted to align the radial clamping block connecting holes 221 and the radial pocket block lower connecting holes 211, and the pre-tightening connection is performed sequentially by using bolts.
Finally, the radial connecting table lower assembling holes 231 and the radial connecting table upper assembling holes 232 are respectively aligned with the two radial clamping block assembling holes 222, bolts are used for pretightening connection, the radial connecting tables 23 on two sides can be connected into other radial pocket blocks 21 and radial clamping blocks 22, after pretightening connection is completed completely, the bolts are fastened in a staggered manner, the bonding anti-loosening treatment is carried out on the bolt connection positions by using glue joint, meanwhile, the connection gaps are filled with glue so as to enable the connection to be fastened more, and the assembly of the radial retainer 2 is completed after the glue joint fastening is waited.
The preferred adhesive for this embodiment is an industrial adhesive.
In addition, the combined retainer provided in this embodiment is detachably connected, and the specific dismounting manner is as follows:
In order to realize the disassembly of the combined retainer, the bonding anti-loosening treatment place of the bolt is heated and softened firstly, the bolt is disassembled, then the joint of the cementing treatment is heated and softened, the pocket block, the clamping block and the connecting table are disassembled, and the disassembly is completed by cleaning the adhesive on the surface.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. The invention mainly aims to avoid deformation influence caused by welding, save manufacturing cost caused by welding line detection, realize high-precision processing of the pocket block, ensure that the combined retainer can be detached and remanufactured, facilitate maintenance and remanufacturing of the main bearing and prolong the service life of the heading machine. Therefore, the size and radian of the pocket blocks, the number of the connecting pocket blocks on the clamping blocks, the number and positions of the assembly holes and the connecting holes, the connection mode among the components of the combined retainer and the like can be adjusted according to actual conditions, and the combined retainer is not limited to the conditions shown in the embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The combined retainer for the main bearing of the heading machine is characterized by comprising a pocket block, a first clamping block, a second clamping block and a main bearing retainer formed by a connecting table; the connecting table is detachably connected with the first clamping block and the second clamping block respectively; the pocket block is provided with a pocket, and the connecting table is provided with a roller surface and a flange surface;
Steps which can be combined with the pocket Kong Kuaika are arranged on the first clamping block and the second clamping block; the connecting table is provided with a step which can be clamped with the first clamping block and the second clamping block;
The main bearing retainer comprises a main pushing retainer, a radial retainer and an auxiliary pushing retainer, and the main pushing retainer and the auxiliary pushing retainer have the same structure;
The main pushing retainer comprises a main pushing pocket block, a main pushing inner clamping block, a main pushing outer clamping block and a main pushing connecting table; two ends of the main pushing pocket block are respectively detachably connected with the main pushing inner clamping block and the main pushing outer clamping block; the main pushing inner clamping block and the main pushing outer clamping block are arc-shaped clamping blocks; the main pushing connecting table is provided with a groove for installing the main pushing inner clamping block and the main pushing outer clamping block;
The radial retainer comprises a radial pocket block, a radial clamping block and a radial connecting table; two ends of the radial pocket block are respectively detachably connected with a radial clamping block; the radial clamping blocks are arc-shaped fixed flanges and are provided with groove surfaces for installing the radial pocket blocks; the radial connecting table is provided with a groove for installing the radial clamping block.
2. The combination holder of claim 1, wherein the releasable connection is a bolted connection.
3. The combination holder according to claim 2, wherein the first and second clamping blocks are provided with first assembly holes and first connecting holes, the connecting table is provided with second assembly holes matched with the first assembly holes, and the pocket block is provided with second connecting holes matched with the first connecting holes.
4. A composite holder according to claim 3, wherein the first connection holes in the first clamping blocks are equidistantly arranged on the first clamping blocks and correspond to the first connection holes in the second clamping blocks.
5. The composite cage of claim 1 wherein the first clamp block, the second clamp block and the pocket block are all steel; the material of the connecting table is copper.
6. The composite holder of claim 1 wherein the removable connection further comprises an adhesive bond and the composite holder gap is filled with an adhesive.
7. An assembly method for assembling a composite cage according to any one of the preceding claims 1-6, comprising:
The first step, quenching treatment and processing are carried out on the pocket block, the first clamping block and the second clamping block;
step two, clamping the pocket block with the first clamping block, adjusting the position of the pocket block to align a second connecting hole on the pocket block with a first connecting hole on the first clamping block, pre-tightening the pocket block by using a bolt, and repeating the steps until the first connecting hole on the first clamping block is used up;
Thirdly, closing the second clamping block with the pocket Kong Kuaika, adjusting the position of the pocket block to align a first connecting hole on the second clamping block with a corresponding second connecting hole on the pocket block, pre-tightening the second clamping block by using a bolt, and repeating the steps until the first connecting hole on the second clamping block is used up;
Fourthly, clamping the connecting table with the first clamping block and the second clamping block, adjusting the position of the connecting table to align the first assembly hole with the second assembly hole, pre-tightening and connecting the connecting table with bolts, fastening the bolts in a staggered manner after the pre-tightening and connecting are completed, bonding and anti-loosening treatment is carried out on the connecting positions of the bolts by using glue joint, and filling the adhesive into the connecting gap to complete the assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087425.5A CN114483794B (en) | 2022-01-25 | 2022-01-25 | Combined retainer for main bearing of heading machine and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087425.5A CN114483794B (en) | 2022-01-25 | 2022-01-25 | Combined retainer for main bearing of heading machine and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114483794A CN114483794A (en) | 2022-05-13 |
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| CN202210087425.5A Active CN114483794B (en) | 2022-01-25 | 2022-01-25 | Combined retainer for main bearing of heading machine and assembling method thereof |
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