CN114857175B

CN114857175B - Retainer structure for bearing, method for attaching and detaching retainer

Info

Publication number: CN114857175B
Application number: CN202210508608.XA
Authority: CN
Inventors: 孙永亮; 杨森; 李波
Original assignee: Xuzhou Rothe Erde Slewing Bearing Co Ltd
Current assignee: Xuzhou Rothe Erde Slewing Bearing Co Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2024-07-05
Anticipated expiration: 2042-05-11
Also published as: CN114857175A

Abstract

The invention discloses a retainer structure for a bearing, and an installation method and a disassembly method of the retainer. The retainer structure for the bearing comprises a retainer, a fastener and a locking piece, wherein the retainer comprises a top plate, a bottom plate and a plurality of partition plates, the top plate and the bottom plate are arranged in parallel at intervals, two ends of each partition plate are respectively connected with the top plate and the bottom plate, the plurality of partition plates are arranged at intervals in an arc shape, and the retainer is separated by the partition plates to form a plurality of accommodating grooves for accommodating rolling pieces of the bearing; the fasteners are fastened on the periphery of the retainer along the arrangement direction of the partition plates; the retaining member comprises a fixing portion and a binding portion which are connected with each other, a fixing hole for the binding portion to pass through is formed in the fixing portion, a plurality of first limiting clamping teeth are formed in the binding portion, the retaining member is clamped with the fixing portion through the first limiting clamping teeth, the retaining member is locked to the retainer along the extending direction of the partition plate through the clamping of the binding portion and the fixing portion, so that the fastener is attached to the surface of the retainer, the rolling member is prevented from toppling over, and potential safety hazards occur.

Description

Retainer structure for bearing, method for attaching and detaching retainer

Technical Field

The invention belongs to the technical field of bearings, and particularly relates to a retainer structure for a bearing, and an installation method and a disassembly method of a retainer.

Background

The shield tunneling machine is a novel engineering machine capable of continuously, efficiently and automatically completing tunneling and other working procedures of tunnels, and is mainly used for excavating subways and highway tunnels. The main bearing of the shield machine is a main bearing part of the shield machine and is used on a cutter head system of the shield machine.

In the process of dismounting and maintaining the main bearing of the shield machine, the radial retainer and the rolling element are found to be easy to topple when being lifted and dismounted, so that the track surface and other surfaces of the main bearing are damaged or the foot of a worker is damaged when the main bearing falls down.

Disclosure of Invention

The embodiment of the invention provides a retainer structure for a bearing, an installation method and a disassembly method of the retainer, and solves the technical problem that rolling elements are easy to topple in the disassembly and assembly process of the retainer of the main bearing.

In a first aspect, a cage structure for a bearing is provided, including a cage, a fastener and a locking member, where the cage includes a top plate, a bottom plate and a plurality of partitions, the top plate and the bottom plate are arranged in parallel at intervals, two ends of the partitions are connected with the top plate and the bottom plate respectively, and the plurality of partitions are arranged at intervals in an arc shape, and the cage is partitioned by the partitions to form a plurality of accommodating grooves for accommodating rolling members of the bearing; the fasteners are fastened on the periphery of the retainer along the arrangement direction of the partition plates; the retaining member comprises a fixing portion and a binding portion which are connected with each other, a fixing hole for the binding portion to pass through is formed in the fixing portion, a plurality of first limiting clamping teeth are formed in the binding portion, the retaining member is clamped with the fixing portion through the first limiting clamping teeth, and the retaining member is locked to the retainer along the extending direction of the partition plate through the clamping of the binding portion and the fixing portion, so that the fastener is attached to the surface of the retainer.

In some embodiments, the bottom plate is concavely formed with two first grooves in a direction away from the accommodating groove, and the two first grooves are respectively located beside two adjacent partition plates forming the accommodating groove; the ribbon part passes through one of the first grooves; the roof is sunken to the direction that keeps away from the holding tank to be formed with two second recesses, and two second recesses are located the side of two adjacent baffles that form the holding tank respectively.

In some embodiments, the locking member further comprises an adjusting portion, the adjusting portion comprises a bending section and an extending section, one end of the bending section is connected with the inner wall of the fixing hole surrounded by the fixing portion, and the other end of the bending section extends out of the fixing hole; the ribbon part comprises a first side surface and a second side surface which are oppositely arranged, and the first limiting latch is arranged on the first side surface; the extension section extends from the bending section to the direction of the second side surface.

In some embodiments, the inner wall of the fixing hole surrounded by the fixing portion includes a first side wall and a second side wall which are oppositely disposed, the first side wall is close to the ribbon portion, and a second limiting latch is formed on a face of the bending section, which faces away from the first side wall.

In some embodiments, the locking member further includes a locking portion connected to an end of the securing portion remote from the strap portion, the locking portion having a locking aperture.

In some embodiments, the retainer is formed with a concave curved side and a convex curved side along an arcuate extension of the retainer, and the fastener includes interconnected rigid segments that conform to the concave curved side and elastic segments that conform to the convex curved side and the separator at each end of the retainer.

In some embodiments, the retainer further comprises a dismounting member, the rigid section comprises a first rigid portion and a second rigid portion, two ends of the elastic section are respectively connected with the first rigid portion and the second rigid portion, one end, away from the elastic section, of the first rigid portion is provided with a first bending portion facing the outer side of the accommodating groove, one end, away from the elastic section, of the second rigid portion is provided with a second bending portion facing the outer side of the accommodating groove, and the first bending portion and the second bending portion are connected through the dismounting member.

In some embodiments, the dismounting piece comprises a buckle and a connecting rod, the buckle comprises a connecting body connected with the first bending part and a first clamping part and a second clamping part connected with the connecting body respectively, the connecting rod is connected with the second bending part, a first clamping tooth groove and a second clamping tooth groove are formed on two opposite sides of the connecting rod respectively, the first clamping part is clamped with the first clamping tooth groove, and the second clamping part is clamped with the second clamping tooth groove.

In some embodiments, the first bending portion is provided with a fastening hole, and the first fastening portion and the second fastening portion respectively pass through the fastening hole and extend from the connecting body gradually towards the direction approaching to each other; the connecting rod includes bulge and the pole body that distributes in succession along the axial of connecting rod, begins to have the spacing hole that supplies the pole body to pass on the second kink, bulge and second kink butt, and first tooth groove and second tooth groove set up respectively on the pole body, and the periphery winding of pole body has the spring of connecting between bulge and second kink.

In some embodiments, third grooves recessed toward the direction of the receiving grooves are formed on the partition plates at both ends of the holder, and the fasteners are engaged with the third grooves.

In a second aspect, there is provided a method for mounting a cage, which is applied to the above-mentioned cage structure for a bearing, the method comprising the steps of:

Sequentially placing the rolling elements into the corresponding accommodating grooves of the retainer;

Gradually inserting the retainer into the track groove of the bearing by using hoisting equipment;

when part of the retainer is inserted into the track groove, the locking piece and the fastener are removed in sequence;

the remaining exposed portions of the cage continue to be inserted into the track grooves.

In a third aspect, a method for disassembling a cage is provided, which is applied to the cage structure for a bearing, and includes the following steps:

the lifting device is connected with the retainer, and the retainer is controlled to move in the direction away from the bottom wall of the track groove of the bearing by the lifting device;

Binding the fastener on the outer circumference side of the retainer along the arrangement direction of the partition plates of the retainer when part of the retainer is exposed out of the track groove;

Binding the locking piece on the outer side of the fastener along the extending direction of the partition board;

And (5) moving the retainer out of the track groove, and sequentially taking out the rolling elements.

Compared with the prior art, the retainer structure for the bearing provided by the embodiment of the application has the advantages that the retainer is divided by the partition plates to form the plurality of containing grooves for containing the rolling elements of the bearing, the partition plates of the retainer are distributed at intervals in an arc shape, the retainer is fastened on the periphery of the retainer along the distribution direction of the partition plates through the fastening pieces, then the binding belt parts of the locking pieces penetrate through the fixing holes of the fixing parts, the first limiting clamping teeth are used for clamping the inner walls of the fixing holes surrounded by the fixing parts, so that the locking pieces are locked on the retainer along the extending direction of the partition plates, the locking pieces are positioned on the outer sides of the fastening pieces, the fastening pieces are close to the surface of the attaching retainer, the rolling elements are prevented from tilting, and the rolling elements are prevented from injuring the raceway grooves of the main bearing or injuring workers.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is a schematic structural view of a bearing cage according to an embodiment of the present invention.

Fig. 2 is a schematic view of another angle of the bearing cage structure shown in fig. 1.

Fig. 3 is another schematic structural view of a bearing cage structure according to an embodiment of the present invention.

Fig. 4 is a schematic view of a further angle of the bearing cage structure shown in fig. 1.

Fig. 5 is a schematic view of another structure of a bearing cage according to an embodiment of the present invention.

Fig. 6 is a schematic view of a part of the structure of the bearing retainer shown in fig. 5.

Fig. 7 is a schematic structural view of a locking member of a bearing cage structure according to an embodiment of the present invention.

Fig. 8 is a schematic view of another angle of the retaining member of fig. 7.

Fig. 9 is a schematic view of a further angle of the retaining member of fig. 7.

Fig. 10 is a partial schematic view of the retaining member of fig. 7.

Fig. 11 is a schematic structural view of a dismounting member of a cage structure for bearings according to an embodiment of the present invention.

Fig. 12 is an exploded view of a detachable member of a cage structure for bearings according to an embodiment of the present invention.

Fig. 13 is a schematic structural view of a first bending portion of a bearing cage structure according to an embodiment of the present invention.

Fig. 14 is a schematic view of another angle of the detacher of fig. 11.

Fig. 15 is an exploded view of a second bending portion of the bearing cage structure according to the embodiment of the present invention.

Reference numerals illustrate:

The retainer 100, the top plate 110, the bottom plate 120, the partition 130, the accommodating groove 140, the hanging hole 111, the first groove 150, the second groove 160, the concave curved surface side 170, the convex curved surface side 180, the third groove 190; fastener 200, rigid segment 210, first rigid portion 211, second rigid portion 212, first bend portion 213, second bend portion 214, snap hole 215, limiting hole 216, bend body 217, receiving portion 218, resilient segment 220; retaining member 300, fixing portion 310, fixing hole 311, first side wall 312, second side wall 313, third side wall 314, fourth side wall 315, first end 316, second end 317, via hole 318, adjustment space 319, band portion 320, first spacing latch 321, first side 322, second side 323, adjustment portion 330, curved section 331, extension 332, second spacing latch 333, stiffener 340, locking portion 350, locking hole 351, pulling portion 360, and protruding rib 361; the dismounting piece 400, the buckle 410, the connecting body 411, the first clamping part 412, the second clamping part 413, the first lap joint part 414, the second lap joint part 415, the first bar-shaped hole 416, the second bar-shaped hole 417, the first abutting part 418, the second abutting part 419, the connecting rod 420, the first clamping tooth socket 421, the second clamping tooth socket 422, the protruding part 423, the rod body 424 and the spring 425; rolling member 500.

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, i.e., the application is not limited to the embodiments described.

In the description of the present application, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present application and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the application may be combined with other embodiments.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the application. In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.

In a first aspect, an embodiment of the present invention provides a cage structure for a bearing. Referring to fig. 1 to 5, the bearing cage structure includes a cage 100, a fastener 200 and a locking member 300, wherein the cage 100 includes a top plate 110, a bottom plate 120 and a plurality of partitions 130, the top plate 110 and the bottom plate 120 are arranged in a circular arc shape and in parallel at intervals, two ends of the partitions 130 are respectively connected with the top plate 110 and the bottom plate 120, the plurality of partitions 130 are arranged in a circular arc shape at intervals, and the cage 100 is partitioned by the partitions 130 to form a plurality of accommodating grooves 140 for accommodating bearing rolling members 500; the fastening members 200 are fastened to the outer circumference of the holder 100 in the arrangement direction of the partition plates 130; the locking member 300 includes a fixing portion 310 and a tie portion 320 connected to each other, the fixing portion 310 is provided with a fixing hole 311 through which the tie portion 320 passes, the tie portion 320 is formed with a plurality of first limiting latches 321, and is engaged with the fixing portion 310 through the first limiting latches 321, and the locking member 300 is locked to the holder 100 along the extending direction of the partition 130 through the engagement of the tie portion 320 and the fixing portion 310, so that the fastener 200 is attached to the surface of the holder 100.

The cage structure of the present embodiment is applicable to, but not limited to, three rows of roller bearings, and if other bearings employ the cage structure provided by the present invention, it is also intended to fall within the scope of the present invention. The rolling elements 500 of the three-row roller bearing are radial rollers, the cage 100 is a radial cage 100, and the rolling elements 500 can be placed into the receiving grooves 140 through the gap between the fastener 200 and the top plate 110/bottom plate 120. The bearing comprises an outer ring and an inner ring which are sequentially distributed along the radial direction of the bearing, a radial track groove is formed between the outer ring and the inner ring, a plurality of arc-shaped retainers 100 are assembled in the track groove of the bearing, and the rotation between the outer ring and the inner ring of the bearing is realized through the rolling of rolling elements 500. The present embodiment can prevent the rolling members 500 in the receiving grooves 140 of the cage 100 from being fallen down by binding the fasteners 200 to the outer circumference of the cage 100 in the arrangement direction of the spacers 130. The first limiting latches 321 of the locking member 300 extend along the length direction of the binding belt portion 320, one end of the binding belt portion 320, which is far away from the fixing portion 310, passes through the fixing hole 311, and is clamped with the inner wall of the fixing hole 311 by the first limiting latches 321 and the fixing portion 310, so that the locking member 300 can be continuously bound to the fastening member 200 along the extending direction of the partition 130, and is locked to the retainer 100, the fastening member 200 is enabled to be close to the surface of the retainer 100, the risk of toppling of the rolling member 500 is further reduced, meanwhile, the rolling member 500 is relatively kept at the position precision of the retainer 100, the retainer 100 is conveniently installed into a track, the lifting hole 111 is formed in the top plate 110 of the retainer 100, the lifting device is connected through the lifting hole 111, when the retainer 100 provided with the rolling member 500 is placed into the track groove of the bearing, the locking member 300 and the fastening member 200 are sequentially removed when part of the retainer 100 enters the track groove, and then all structures of the retainer 100 are placed into the track groove. When the cage 100 is removed from the bearing, the cage 100 can be bound by the fastener 200 and the locking member 300, so that the rolling member 500 can be prevented from tilting to damage the raceway surface and other surfaces or injuring operators.

As shown in fig. 5 and 6, the bottom plate 120 is concavely formed with two first grooves 150 in a direction away from the receiving groove 140, the two first grooves 150 being located at sides of two adjacent partitions 130 forming the receiving groove 140, respectively; the strap portion 320 passes through one of the first grooves 150; the top plate 110 is concavely formed with two second grooves 160 in a direction away from the receiving groove 140, and the two second grooves 160 are respectively located at sides of two adjacent partitions 130 forming the receiving groove 140. That is, grooves are formed at four corners of each receiving groove 140, and the first groove 150 and the second groove 160 may be used to store grease, avoiding interference of the rolling member 500 with the cage 100. Since there is no gap between the bottom plate 120 and the placement surface of the holder 100, the band portion 320 of the locking member 300 is passed through the first recess 150 of the bottom plate 120, and then the band portion 320 and the fixing portion 310 are fixedly locked at the top plate 110, thereby facilitating the fixing of the locking member 300.

As shown in fig. 7 to 10, the locking member 300 further includes an adjusting portion 330, the adjusting portion 330 includes a curved section 331 and an extending section 332, one end of the curved section 331 is connected with an inner wall of the fixing hole 311 surrounded by the fixing portion 310, and the other end extends out of the fixing hole 311; the ribbon part 320 comprises a first side 322 and a second side 323 which are oppositely arranged, and the first limit latch 321 is arranged on the first side 322; the extension 332 extends from the curved section 331 in the direction of the second side 323. The inner wall of the fixing portion 310 surrounding the fixing hole 311 includes a first side wall 312 and a second side wall 313 that are oppositely disposed, the first side wall 312 is close to the ribbon portion 320, the fixing portion 310 is formed with a first end 316 and a second end 317 along the opening direction of the fixing hole 311, the ribbon portion 320 is connected with the first end 316, the curved section 331 is curved from the position of the first side wall 312 close to the first end 316 toward the second end 317 and then extends out of the second end 317, an adjusting space 319 is formed between the curved section 331 and the first side wall 312, a via hole 318 is formed between the curved section 331 and the second side wall 313, the ribbon portion 320 passes through the via hole 318, and the first limiting latch 321 is clamped with the second side wall 313 of the fixing portion 310. The extension section 332 is pulled to the direction far away from the fixing hole 311 through external force, so that the bending section 331 is close to the first side wall 312, the space of the through hole 318 is enlarged, the first limiting latch 321 can leave the second side wall 313, the ribbon part 320 is taken out from the fixing hole 311, the detachment of the locking piece 300 is completed, the repeated utilization of the locking piece 300 is realized, and the cost is reduced. Or when the fastener 300 is too tightly bound to the fastener 200, the extension section 332 can be pulled to adjust the locking position of the ribbon part 320 and the fixing part 310, so as to avoid damage to the fastener 200 or the fastener 300 caused by excessive force.

The inner wall of the fixing hole 311 is surrounded by the fixing portion 310, and further comprises a third side wall 314 and a fourth side wall 315 which are oppositely arranged, the first side wall 312, the third side wall 314, the second side wall 313 and the fourth side wall 315 are sequentially connected, the fixing hole 311 is formed by surrounding, the third side wall 314 and the fourth side wall 315 respectively form reinforcing ribs 340 along the direction facing the bending section 331, and the strength of the fixing portion 310 is improved.

After the ribbon portion 320 passes through the fixing hole 311, the first side 322 of the ribbon portion 320 contacts with the second side wall 313, the second side 323 of the ribbon portion 320 contacts with the bending section 331 through the first limiting latch 321, the second limiting latch 333 is formed on one surface of the bending section 331, which faces away from the first side wall 312, and the connection stability of the ribbon portion 320 and the fixing portion 310 is further improved through the second limiting latch 333 and the second side 323 of the ribbon portion 320.

The locking member 300 further includes a locking portion 350 connected to an end of the fixing portion 310 remote from the band portion 320, the locking portion 350 having a locking hole 351, and a finger passing through the locking hole 351 to facilitate pulling of the fixing portion 310 during locking. A pulling portion 360 is further formed at an end of the band portion 320 remote from the fixing portion 310, and a plurality of ribs 361 are formed on the pulling portion 360 along the extending direction of the band portion 320. When the locking member 300 is used for locking, an operator can pass through the locking hole 351 by fingers of one hand, pull the pull part 360 by the other hand, pull the pull part 360 and the locking part 350 in opposite directions respectively, and the ribs 361 can increase friction force between the pull part 360 and a human hand, so that the anti-skid function is achieved. The locking member 300 of this embodiment is convenient to operate, and improves the operation efficiency.

As shown in fig. 1 and 2, the retainer 100 is formed with a concave curved side 170 and a convex curved side 180 along its arc extension, and in some embodiments, the fastener 200 includes a rigid segment 210 and an elastic segment 220 connected to each other, the rigid segment 210 is attached to the concave curved side 170, the elastic segment 220 is attached to the convex curved side 180 and the spacers 130 at both ends of the retainer 100, the rigid segment 210 may be made of alloy steel, aluminum alloy, etc., and the elastic segment 220 is made of rubber or a spring 425. Part of the elastic segment 220 may also be attached to the end of the concave curved side 170 near the end spacers 130, while most of the concave curved side 170 contacts the rigid segment 210, improving the attachment of the fastener 200 to the concave curved side 170. In other embodiments, the fastener 200 may be provided as a rubber or annular spring 425 ring, reducing cost.

In the embodiment shown in fig. 3, the third grooves 190 recessed toward the receiving grooves 140 are formed on the partition plates 130 at both ends of the holder 100, and the fastening members 200 are engaged with the third grooves 190, thereby improving the connection stability between the fastening members 200 and the holder 100.

As shown in fig. 2 and 11, in some embodiments, the holder 100 further includes a dismounting member 400, the rigid section 210 includes a first rigid portion 211 and a second rigid portion 212, two ends of the elastic section 220 are respectively connected with the first rigid portion 211 and the second rigid portion 212, a first bending portion 213 facing the outer side of the accommodating groove 140 is formed at one end of the first rigid portion 211 away from the elastic section, a second bending portion 214 facing the outer side of the accommodating groove 140 is formed at one end of the second rigid portion 212 away from the elastic section, and the first bending portion 213 and the second bending portion 214 are connected by the dismounting member 400. When the retainer 100 is placed in the bearing track groove through the hoisting device, after the lower end portion of the retainer 100 is inserted into the track groove, the locking member 300 and the fastening member 200 need to be removed in sequence, and since the first bending portion 213 and the second bending portion 214 of the embodiment are connected through the disassembling member 400, the disassembling member is removed, and the first rigid portion 211 and the second rigid portion 212 can be unfastened, so that the fastening member 200 is detached from the retainer 100, the elastic section does not need to be cut off, the repeated use of the fastening member 200 is realized, and the cost is reduced.

As shown in fig. 11 and 12, the dismounting piece 400 includes a buckle 410 and a connecting rod 420, the buckle 410 includes a connecting body 411 connected with the first bending portion 213 and a first clamping portion 412 and a second clamping portion 413 connected with the connecting body 411 respectively, the connecting rod 420 is connected with the second bending portion 214, and two opposite sides of the connecting rod 420 are respectively formed with a first clamping slot 421 and a second clamping slot 422, the first clamping portion 412 is clamped with the first clamping slot 421, the second clamping portion 413 is clamped with the second clamping slot 422, and connection of the first bending portion 213 and the second bending portion 214 is realized through clamping. When the fastener 200 needs to be detached, only the first clamping portion 412 and the second clamping portion 413 need to be separated from the first clamping groove 421 and the second clamping groove 422 respectively by applying force. The dismounting piece 400 of the embodiment is convenient for dismounting the fastener 200, and improves the working efficiency. A plurality of first and second clamping slots 421 and 422 may be respectively disposed along the extending direction of the connecting rod 420, and the distance between the first and second bending portions 213 and 214 may be adjusted by changing the connection between the first clamping portion 412 and the different first clamping slots 421 and the connection between the second clamping portion 413 and the different second clamping slots 422, so that the fastener 200 is suitable for the holders 100 with different arc lengths.

Specifically, referring to fig. 11 to 15, a first bending portion 213 is provided with a fastening hole 215, and a first fastening portion 412 and a second fastening portion 413 respectively pass through the fastening hole 215 and gradually extend from the connecting body 411 toward each other; the second bending portion 214 is provided with a limiting hole 216, the connecting rod 420 includes a protruding portion 423 and a rod body 424 which are distributed in succession along the axial direction of the connecting rod 420, the radial dimension of the protruding portion 423 is larger than that of the limiting hole 216, the protruding portion 423 can be prevented from penetrating through the limiting hole 216, the first tooth-clamping groove 421 and the second tooth-clamping groove 422 are respectively arranged on the rod body 424, the rod body 424 penetrates through the limiting hole 216, and a spring 425 connected between the protruding portion 423 and the second bending portion 214 is wound around the periphery of the rod body 424. When the first bending part 213 and the second bending part 214 need to be connected, the rod body 424 respectively passes through the connecting body 411 and the fastening hole 215, and then the protruding part 423 is pressed, so that the spring 425 between the protruding part 423 and the second bending part 214 is compressed, the first bending part 213 and the second bending part 214 are mutually close, the end part of the first clamping part 412 is clamped with the first clamping groove 421, and the end part of the second clamping part 413 is clamped with the second clamping groove 422, so that the quick installation of the fastener 200 can be realized. When the fastener 200 needs to be disassembled, the protruding portion 423 is rotated by 90 degrees, so that the end portion of the first clamping portion 412 and the end portion of the second clamping portion 413 are separated from the first clamping tooth groove 421 and the second clamping tooth groove 422 respectively, the protruding portion 423 is sprung up under the action force of the spring 425 to release the clamping, and the rod body 424 is moved out of the buckle 410, so that the first bending portion 213 and the second bending portion 214 can be separated, and the quick disassembly of the fastener 200 is realized.

The second bending portion 214 includes a bending body 217 and a receiving portion 218 fixed to the bending body 217, one end of a spring 425 wound around the outer periphery of the rod body 424 is connected to the protruding portion 423, the other end is connected to the bottom of the receiving portion 218, the protruding portion 423 is pressed, the rod body 424 sequentially passes through the bottom of the receiving portion 218 and the limiting hole 216, and after the spring 425 is compressed, the protruding portion 423 can be received in the receiving portion 218; if the projection 423 is rotated by 90 degrees, the projection 423 is ejected out of the receiving portion 218 under the force of the spring 425. The accommodating portion 218 not only has the function of accommodating the protruding portion 423, but also can rotate the protruding portion 423 along the side wall of the accommodating portion 218 when the fastener 200 is detached, thereby facilitating the application of force.

More specifically, the two opposite sides of the connecting body 411 extend outwards to form a first overlap portion 414 and a second overlap portion 415, and the first overlap portion 414 and the second overlap portion 415 overlap the same side of the first bending portion 213. The first engaging portion 412 and the second engaging portion 413 are symmetrically disposed, and are bent from the connecting body 411 in a direction away from the first bending portion 213, and are respectively bent to approach each other. The first clamping portion 412 has a first strip-shaped hole 416 along its own extending direction, the second clamping portion 413 has a second strip-shaped hole 417 along its own extending direction, and the buckle 410 further includes a first abutting portion 418 extending outwards from the inner wall of the first clamping portion 412 surrounding the first strip-shaped hole 416, and a second abutting portion 419 extending outwards from the inner wall of the second clamping portion 413 surrounding the second strip-shaped hole 417. The free ends of the first abutting portion 418 and the second abutting portion 419 are respectively abutted against one side of the first bending portion 213 away from the first overlapping portion 414 and the second overlapping portion 415, and the arrangement direction of the first overlapping portion 414 and the second overlapping portion 415 is perpendicular to the arrangement direction of the first abutting portion 418 and the second abutting portion 419, so that the buckle 410 is firmly connected to the first bending portion 213. If the buckle 410 is damaged due to long-term use, the buckle 410 can be detached from the second bending portion 214 for replacement, and the whole fastener 200 is not required to be replaced, so that the use cost is reduced.

In a second aspect, an embodiment of the present invention provides a method for installing a cage 100, which is applied to the above-mentioned cage structure for a bearing, the method comprising the steps of:

s11, sequentially placing the rolling elements 500 into the corresponding accommodating grooves 140 of the retainer 100;

The fastening member 200 and the locker 300 may be inserted into the receiving groove 140 through a gap between the fastening member 200 and the top plate 110 or the bottom plate 120, so that the rolling member 500 is vertically received in the receiving groove 140, preventing the rolling member 500 from being fallen down.

S21, gradually inserting the retainer 100 into a track groove of a bearing by using lifting equipment;

the retainer 100 is moved to above the track groove in the radial direction of the bearing by being connected to the lifting hole 111 on the top plate 110 by the lifting device.

S31, when a part of the retainer 100 is inserted into the track groove, the locking piece 300 and the fastener 200 are removed in sequence;

And S41, continuously inserting the exposed part of the rest of the retainer 100 into the track groove.

When the cage 100 of about 1/3 height is entered into the track groove, the locking member 300 and the fastening member 200 are sequentially released, and then the cage 100 is completely put into the track groove, the whole installation process prevents the rolling member 500 from being fallen down, and damage to the track surface and other surfaces or injury to operators is avoided.

In a third aspect, an embodiment of the present invention further provides a method for disassembling a cage 100, which is applied to the above-mentioned cage structure for a bearing, the disassembling method includes the following steps:

S12, connecting the retainer 100 by using lifting equipment, and controlling the retainer 100 to move in a direction away from the bottom wall of the track groove of the bearing by using the lifting equipment;

after the lifting device is connected with the lifting hole 111 on the top plate 110 of the holder 100, the holder 100 is lifted upwards.

S22, binding the fastener 200 to the outer peripheral side of the retainer 100 along the arrangement direction of the partition 130 of the retainer 100 when part of the retainer 100 is exposed out of the track groove;

When the holder 100 of about 1/2 height is exposed to the rail groove, the fastener 200 is fitted around the outer circumference of the holder 100.

S32, binding the locking piece 300 on the outer side of the fastener 200 along the extending direction of the partition 130;

The fastener 200 is locked using the locking member 300 such that the fastener 200 is fitted to the surface of the holder 100.

And S42, moving the retainer 100 out of the track groove, and sequentially taking out the rolling elements 500.

Due to the limiting action of the fastening member 200 and the locking member 300, the rolling member 500 does not fall down during the movement of the cage 100 by the lifting device, and the rolling member 500 is removed from the receiving groove 140 after the cage 100 is placed on the work platform or the ground.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A cage structure for a bearing, comprising:

The retainer comprises a top plate, a bottom plate and a plurality of partition plates, wherein the top plate and the bottom plate are arranged in parallel at intervals, two ends of each partition plate are respectively connected with the top plate and the bottom plate, the partition plates are arranged at intervals in an arc shape, and the retainer is divided by the partition plates to form a plurality of accommodating grooves for accommodating bearing rolling elements;

The fasteners are fastened on the periphery of the retainer along the arrangement direction of the partition plates; the retainer is provided with a concave curved surface side and a convex curved surface side along the arc extending direction of the retainer, the fastener comprises a rigid section and an elastic section which are connected with each other, the rigid section is attached to the concave curved surface side, and the elastic section is attached to the convex curved surface side and the partition plates at two ends of the retainer;

The locking piece comprises a fixing portion and a binding portion, wherein the fixing portion and the binding portion are connected with each other, a fixing hole for the binding portion to pass through is formed in the fixing portion, a plurality of first limiting clamping teeth are formed in the binding portion, the locking piece is clamped with the fixing portion through the first limiting clamping teeth, and the locking piece is locked with the retainer along the extending direction of the partition plate through the clamping of the binding portion and the fixing portion, so that the fastening piece is attached to the surface of the retainer.

2. The cage structure for bearings according to claim 1, wherein the bottom plate is recessed in a direction away from the accommodation groove to form two first grooves, the two first grooves being located respectively beside two adjacent partition plates forming the accommodation groove; the ribbon part passes through one of the first grooves; the roof is to keeping away from the direction of holding tank is sunken to be formed with two second recesses, and two second recesses are located respectively the side of two adjacent baffles that form the holding tank.

3. The bearing retainer structure according to claim 1, wherein the lock member further comprises an adjusting portion including a curved section and an extending section, one end of the curved section is connected to an inner wall of the fixing portion surrounding the fixing hole, and the other end thereof protrudes from the fixing hole; the ribbon part comprises a first side surface and a second side surface which are oppositely arranged, and the first limit latch is arranged on the first side surface; the extension section extends from the bending section toward the second side surface.

4. A bearing cage structure according to claim 3, wherein the inner wall of the fixing hole surrounded by the fixing portion includes a first side wall and a second side wall which are disposed opposite to each other, the first side wall is close to the ribbon portion, and a second limiting latch is formed on a surface of the curved section facing away from the first side wall.

5. The bearing cage structure of claim 1 wherein the locking member further comprises a locking portion connected to an end of the securing portion remote from the band portion, the locking portion having a locking hole.

6. The structure of a bearing cage according to any one of claims 1 to 5, wherein the cage further comprises a detachable member, the rigid section includes a first rigid portion and a second rigid portion, both ends of the elastic section are connected to the first rigid portion and the second rigid portion, a first bending portion facing the outside of the accommodation groove is formed at an end of the first rigid portion away from the elastic section, a second bending portion facing the outside of the accommodation groove is formed at an end of the second rigid portion away from the elastic section, and the first bending portion and the second bending portion are connected by the detachable member.

7. The holder structure for bearings according to claim 6, wherein the detachable member comprises a buckle and a connecting rod, the buckle comprises a connecting body connected with the first bending portion, and a first clamping portion and a second clamping portion connected with the connecting body respectively, the connecting rod is connected with the second bending portion, and a first clamping groove and a second clamping groove are formed on two opposite sides of the connecting rod respectively, the first clamping portion is clamped with the first clamping groove, and the second clamping portion is clamped with the second clamping groove.

8. The bearing retainer structure according to claim 7, wherein the first bending portion is provided with a fastening hole, and the first fastening portion and the second fastening portion respectively pass through the fastening hole and extend from the connecting body gradually in a direction approaching each other; the connecting rod comprises a protruding portion and a rod body, wherein the protruding portion and the rod body are sequentially distributed along the axial direction of the connecting rod, a limiting hole for the rod body to pass through is formed in the second bending portion, the protruding portion is in butt joint with the second bending portion, the first tooth clamping groove and the second tooth clamping groove are respectively formed in the rod body, and a spring connected between the protruding portion and the second bending portion is wound on the periphery of the rod body.

9. The bearing retainer structure according to any one of claims 1 to 5, wherein third grooves recessed in the direction of the receiving grooves are formed in the partition plates at both ends of the retainer, and the fastener is engaged with the third grooves.

10. A method of installing a cage, characterized by being applied to the cage structure for a bearing according to any one of claims 1 to 9, comprising the steps of:

sequentially placing rolling elements into corresponding accommodating grooves of the retainer;

Gradually inserting the retainer into a track groove of a bearing by using lifting equipment;

the remaining exposed portion of the cage is continued to be inserted into the track groove.

11. A method of dismounting a cage, characterized by being applied to the cage structure for bearings according to any one of claims 1 to 9, comprising the steps of:

The lifting device is connected with the retainer, and the retainer is controlled to move in a direction away from the bottom wall of the track groove of the bearing through the lifting device;

binding the fastener to the outer peripheral side of the retainer in the direction in which the spacers of the retainer are arranged when part of the retainer is exposed to the rail groove;

binding the locking piece on the outer side of the fastening piece along the extending direction of the partition board;

and removing the retainer from the track groove, and sequentially taking out the rolling elements.