Split type retainer and bearing

Abstract

The utility model discloses a split type retainer and a bearing, and relates to the technical field of bearings. Comprising a retainer body which comprises a first retainer body and a second retainer body; the first retainer body and the second retainer body are in butt joint through a connecting assembly; the connecting assembly comprises a connecting piece and a fastening piece; the connecting pieces are arranged between the first retainer body and the second retainer body in the circumferential direction at intervals and used for connecting the first retainer body and the second retainer body. The fastener is used for locking the connecting piece with the first retainer body and the second retainer body; through the arrangement of the connecting assembly and the fastening piece, looseness and fit clearance of the first retainer body and the second retainer body in the circumferential direction and the axial direction are avoided, the first retainer body and the second retainer body can be disassembled only by disassembling the fastening piece in the disassembling process, rapid assembling and disassembling are achieved, and assembling and disassembling are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, and in particular relates to a split retainer and a bearing. Background Art

[0002] Cage (i.e. bearing cage, also known as bearing retainer) refers to a bearing part that partially wraps all or part of the rolling elements and moves with them, isolating the rolling elements and usually guiding the rolling elements and retaining them in the bearing. Most existing cages are one-piece. Since they are formed by integral processing, they have the integrity of an integrated structure. Once they need to be replaced due to failure, damage, or dust entering the interior, the entire cage structure needs to be replaced, and individual repairs or replacement of parts are not possible, resulting in high repair costs;

[0003] Since the split retainer is detachable, the design of a split retainer can effectively avoid the above-mentioned problems. The existing split retainer, although it realizes a detachable structure, has a low connection strength. For example, the patent application number is 202020716544.9, and the patent name is a new type of bearing. Its fixed cover and connecting piece are distributed at intervals along the circumferential direction. The connection strength of two adjacent fixed covers connected by connecting pieces is low. It discloses eight groups of connecting pieces, four of which are riveted, and the other four groups are connected by protrusions and grooves. The plug-in connections of four groups are prone to looseness and fitting gaps, which reduce the connection strength of the retainer. When errors occur in the plug-in connection, it is easy to cause the riveting to fail to connect. Utility Model Content

[0004] The utility model provides a split retainer and a bearing, so as to solve the problems in the prior art that the split retainer has low connection strength, is prone to looseness and has a matching gap.

[0005] The technical solution adopted by the utility model is:

[0006] A split cage, comprising:

[0007] A retaining frame body, the retaining frame body comprising a first retaining frame body and a second retaining frame body; the first retaining frame body and the second retaining frame body are butt-connected via a connecting assembly;

[0008] A connecting component, the connecting component includes a connecting piece and a fastener; the connecting piece is arranged between the first retaining frame body and the second retaining frame body along the circumferential interval, and is used to connect the first retaining frame body and the second retaining frame body; the fastener is used to lock the connecting piece with the first retaining frame body and the second retaining frame body.

[0009] A split cage of the utility model also has the following additional technical features:

[0010] The connecting member comprises a connecting block; the connecting block protrudes and is connected to the end surface of the first retaining frame body facing the second retaining frame body, and / or the connecting block protrudes and is connected to the end surface of the second retaining frame body facing the first retaining frame body.

[0011] When the first retaining frame body is constructed to have the connecting block, the second retaining frame body is provided with a first connecting groove corresponding to the connecting block, so that the connecting block is cooperated and connected with the first connecting groove; and / or when the second retaining frame body is constructed to have the connecting block, the first retaining frame body is provided with a second connecting groove corresponding to the connecting block, so that the connecting block is cooperated and connected with the second connecting groove.

[0012] A first connecting hole for inserting the fastener is provided in the connecting block; a second connecting hole for inserting the fastener is provided in the first retaining frame; a third connecting hole for inserting the fastener is provided in the second retaining frame; the first connecting hole, the second connecting hole and the third connecting hole correspond to each other.

[0013] The fastener is a cylindrical structure, and is axially provided with a first step and a second step. The first step is connected to a first spring, and the first spring is used to abut against the second connecting hole; the second step is connected to a second spring, and the second spring is used to abut against the third connecting hole, so as to connect the first retaining frame body with the second retaining frame body.

[0014] The connecting member includes a first plug-in block and a second plug-in block, the first plug-in block is circumferentially connected to a side of the first retaining frame body facing the second retaining frame body, and the second plug-in block is circumferentially connected to a side of the second retaining frame body facing the first retaining frame body; the first plug-in block is cooperatively connected with the second plug-in block.

[0015] A slot for plugging and connecting the second plug-in block is provided in the first plug-in block; an end of the second plug-in block passes through the first retaining frame to form a positioning block.

[0016] The fastener is in a circular ring structure and is disposed on a side of the first retaining frame body away from the second retaining frame body. A positioning hole for inserting the positioning block is circumferentially disposed on the fastener.

[0017] The first retaining frame body is provided with a plurality of first pocket grooves along the circumferential direction, and the second retaining frame body is provided with a plurality of second pocket grooves along the circumferential direction. The first pocket grooves are connected with the second pocket grooves to form pocket holes for mounting rolling bodies.

[0018] The present application also relates to a bearing, comprising rolling elements, an inner ring and an outer ring, and a split retaining cage as described above; the rolling elements are installed in pockets, the inner ring is sleeved inside the retaining cage, and the outer ring is sleeved outside the retaining cage; the inner ring and the outer ring are rotatably connected via the rolling elements.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. The present application realizes a split structure of a retainer by providing a first retainer body and a second retainer body. When connected, the first retainer body is connected to the upper part of the second retainer body, and the first retainer body and the second retainer body are docked through a connecting assembly. The connecting assembly includes a connecting piece for connecting the first retainer body and the second retainer body. The first heavy locking connection of the first retainer body and the second retainer body is achieved by providing the connecting piece; the connecting piece is circumferentially arranged between the first retainer body and the second retainer body to improve the connection strength of the first retainer body and the second retainer body; the connecting assembly also includes a fastener for fastening the first retainer body, the connecting piece and the second retainer body. The frame bodies are further tightened to achieve a second locking connection between the first frame body and the second frame body; due to the double locking structure, the fit is further improved to prevent the first frame body and the second frame body from loosening in the circumferential and axial directions and the occurrence of a fit gap, and during disassembly, only the fasteners need to be removed to achieve disassembly of the first frame body and the second frame body, thereby achieving quick assembly and disassembly and facilitating installation and disassembly; and when any one of the structures, such as the first frame body, is damaged, the first frame body can be replaced separately, and the second frame body can still be used, thereby avoiding the situation in which the entire frame is scrapped if part of the traditional integrated frame is damaged.

[0021] 2. As a preferred embodiment of the present invention, the connector includes a connecting block; the connecting block protrudes and is connected to the end face of the first retaining frame body facing the second retaining frame body, and / or the connecting block protrudes and is connected to the end face of the second retaining frame body facing the first retaining frame body. The purpose of inserting the connecting block of the first retaining frame body into the second retaining frame body and / or the connecting block of the second retaining frame body into the first retaining frame body is to further enhance the connection strength between the first retaining frame body and the second retaining frame body to achieve two-way splicing; to improve the centering of the first retaining frame body and the second retaining frame body during the docking process, and to achieve preliminary positioning and connection.

[0022] 3. As a preferred embodiment of the utility model, a first connection hole for inserting the fastener is provided in the connection block; a second connection hole for inserting the fastener is provided in the first retaining frame body; a third connection hole for inserting the fastener is provided in the second retaining frame; the first connection hole, the second connection hole and the third connection hole correspond to each other. A second connection hole connected to the first connection hole is provided in the first retaining frame, and a third connection hole connected to the first connection hole is provided in the second retaining frame, so that the first connection hole, the second connection hole and the third connection hole are axially connected to form a guide channel, which is convenient for inserting the fastener into the guide channel, realizing the second locking connection between the first retaining frame body and the second retaining frame body, so that the first retaining frame body and the second retaining frame body are prevented from loosening in the axial and circumferential directions and fitting clearance, and further improving the strength and stability of the connection.

[0023] 4. As a preferred embodiment of the utility model, the connector includes a first plug-in block and a second plug-in block, the first plug-in block is circumferentially connected to the side of the first retaining frame body facing the second retaining frame body, and the second plug-in block is circumferentially connected to the side of the second retaining frame body facing the first retaining frame body; the first plug-in block is matched with the second plug-in block. The first plug-in block is distributed along the circumference of the first retaining frame body, the bottom end of the first plug-in block does not protrude from the end face of the first retaining frame body, but is located within the outer circumferential surface of the first retaining frame body, similarly, the second plug-in block is distributed along the circumference of the second retaining frame body, the bottom end of which does not protrude from the end face of the second retaining frame body, but is located within the outer circumferential surface of the second retaining frame body, and the first plug-in block and the second plug-in block have a wedge-shaped structure, so that the first plug-in block and the second plug-in block can not only realize plug-in connection but also have a positive locking connection, further improving the centering performance of the first retaining frame body and the second retaining frame body, eliminating the matching clearance between the first retaining frame body and the second retaining frame body along the circumferential direction, and improving the connection strength.

[0024] 5. As a preferred embodiment of the present invention, a slot for plugging and connecting the second plug-in block is provided in the first plug-in block; the end of the second plug-in block passes through the first retaining frame to form a positioning block. When connected, after the second plug-in block is inserted into the slot, it can pass through the top surface of the first retaining frame, and the part that passes through constitutes the structure of the positioning block for connecting with the fastener. By providing the positioning block that passes through the first retaining frame to connect with the fastener, the connection strength between the connector and the first retaining frame and the second retaining frame is further improved, and the second double-locking connection is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 A side view of a split retainer according to an embodiment of the utility model;

[0027] Figure 2 This is a top view of a split cage according to an embodiment of the utility model;

[0028] Figure 3 for Figure 2 Schematic diagram of the cross section at AA;

[0029] In the figure,

[0030] 1 a retaining frame body, 11 a first retaining frame body, 12 a second retaining frame body;

[0031] 2 connecting block, 3 fastener, 4, first boss, 5 second boss, 6 first weight-reducing groove, 7 second weight-reducing groove, 8 first pocket groove, 9 second pocket groove, 10 pocket hole, 13 first connecting groove, 14 rolling body. DETAILED DESCRIPTION

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0033] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0036] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0037] The utility model relates to a split retainer and a bearing, such as Figure 1-3 As shown, a split retainer comprises: a retainer body 1, wherein the retainer body 1 comprises a first retainer body 11 and a second retainer body 12; the first retainer body 11 and the second retainer body 12 are butt-connected via a connecting assembly; a connecting assembly, wherein the connecting assembly comprises a connecting piece and a fastener 3; the connecting piece is circumferentially spaced between the first retainer body 11 and the second retainer body 12, and is used to connect the first retainer body 11 and the second retainer body 12; the fastener 3 is used to lock the connecting piece with the first retainer body 1 and the second retainer body 12.

[0038] like Figure 1 As shown, the first retainer body 11 and the second retainer body 12 are in annular structures. The first retainer body 11 is connected to the top of the second retainer body 12. The bottom of the first retainer body 11 is provided with the first pocket grooves 8 described below, which are evenly arranged in the circumferential direction. The top of the second retainer body 12 is provided with the second pocket grooves 9 described below, which are evenly arranged in the circumferential direction and correspond to the first pocket grooves 8. The first pocket grooves 8 and the second pocket grooves 9 are connected to form pocket holes 10 for mounting rolling elements 14. The top surface of the first retainer body 11 corresponding to the first pocket grooves 8 is formed with a first boss 4, and the bottom surface of the second retainer body 12 corresponding to the second pocket grooves 9 is formed with a second boss 5; the top surface of the first boss 4 has a plurality of first weight-reducing grooves 6 for achieving weight-reducing effects, and the bottom surface of the second boss 5 is provided with a plurality of second weight-reducing grooves 7 for achieving weight-reducing effects symmetrically to the first weight-reducing grooves 6. The first weight-reducing grooves 6 do not penetrate the first retainer body 11, and the second weight-reducing grooves 7 do not penetrate the second retainer body 12.

[0039] It should be noted that the first retaining frame body 11 and the second retaining frame body 12 are injection molded, and the first retaining frame body 11 and the second retaining frame body 12 can be made of PA46 or PEEK material.

[0040] The split structure of the cage is realized by setting the first cage body 11 and the second cage body 12. When connected, the first cage body 11 is connected to the top of the second cage body 12, and the first cage body 11 and the second cage body 12 are docked through a connecting assembly. The connecting assembly includes a connecting piece for connecting the first cage body 11 and the second cage body 12. The first heavy locking connection of the first cage body 11 and the second cage body 12 is realized by setting the connecting piece; the connecting piece is circumferentially arranged between the first cage body 11 and the second cage body 12 to improve the connection strength of the first cage body 11 and the second cage body 12; the connecting assembly also includes a fastener 3, which is used to connect the first cage body 11, the connecting piece The connecting piece and the second retaining frame body 12 are further tightened to realize the second locking connection between the first retaining frame body 11 and the second retaining frame body 12; due to the double locking structure, the fit is further improved to prevent the first retaining frame body 11 and the second retaining frame body 12 from loosening in the circumferential and axial directions and the occurrence of a fit gap, and during disassembly, only the fastener 3 needs to be removed to realize the disassembly of the first retaining frame body 11 and the second retaining frame body 12, thereby realizing quick assembly and disassembly and facilitating installation and disassembly; and when any one of the structures, such as the first retaining frame body, is damaged, the first retaining frame body can be replaced separately, and the second retaining frame body can still be used, thereby avoiding the situation in which the entire retaining frame is scrapped if part of the traditional integrated retaining frame is damaged.

[0041] The structure of the connecting piece is not limited by the present application and can be implemented in any of the following ways:

[0042] Embodiment 1: The connecting member includes a connecting block 2; the connecting block 2 is protrudingly connected to the end surface of the first retaining frame body 11 facing the second retaining frame body 12, and / or the connecting block 2 is protrudingly connected to the end surface of the second retaining frame body 12 facing the first retaining frame body 11.

[0043] In this way, there are three embodiments in this embodiment. In the first embodiment, a connecting block 2 protruding from the end surface is provided at the bottom end of the first retaining frame body 11 facing the second retaining frame body 12, and the first retaining frame body 11 and the second retaining frame body 12 are connected by inserting the connecting block 2 into the second retaining frame body 12. In the second embodiment, the bottom end of the first retaining frame body 11 facing the second retaining frame body 12 and the top end of the second retaining frame body 12 facing the first retaining frame body 11 both have connecting blocks 2 protruding from the corresponding end surfaces, and the connecting block 2 of the first retaining frame body 11 is inserted into the second retaining frame body 12. , the connecting block 2 of the second retaining frame body 12 is inserted into the first retaining frame body 11 to realize the matching connection between the first retaining frame body 11 and the second retaining frame body 12. This embodiment increases the matching number of the connecting blocks 2, the purpose of which is to further enhance the connection strength between the first retaining frame body 11 and the second retaining frame body 12 and realize two-way splicing; in the third embodiment, the top end of the second retaining frame body 12 facing the first retaining frame body 11 is provided with a connecting block 2 protruding from the end face, and the connecting block 2 on the second retaining frame body 12 is inserted into the first retaining frame body 11 to realize the matching connection between the first retaining frame body 11 and the second retaining frame body 12. The purpose of setting the connecting block 2 is to realize the centering of the first retaining frame body 11 and the second retaining frame body 12 during the docking process, and to realize the preliminary positioning and connection.

[0044] like Figure 2 and Figure 3 As shown, when the first retaining frame body 11 is constructed to have the connecting block 2, the second retaining frame body 12 is provided with a first connecting groove 13 corresponding to the connecting block 2, so that the connecting block 2 is cooperated and connected with the first connecting groove 13; and / or, when the second retaining frame body 12 is constructed to have the connecting block 2, the first retaining frame body 11 is provided with a second connecting groove corresponding to the connecting block 2, so that the connecting block 2 is cooperated and connected with the second connecting groove.

[0045] In this way, when the first retaining frame body 11 has a connecting block 2, in order to enable the connecting block 2 to be smoothly inserted into the second retaining frame body 12, it is necessary to provide a first connecting groove 13 corresponding to the connecting block 2 on the second retaining frame body 12, so that the connecting block 2 can be inserted into the first connecting groove 13 to realize the connection between the first retaining frame body 11 and the second retaining frame body 12. Similarly, when the second retaining frame body 12 has a connecting block 2, a corresponding second connecting groove is provided on the first retaining frame body 11. When the first retaining frame body 11 and the second retaining frame body 12 are both provided with connecting blocks 2, it is necessary to provide a second connecting groove on the first retaining frame body 11 and a first connecting groove 13 on the second retaining frame body 12. In this way, the connecting block 2 on the first retaining frame body 11 is inserted into the first connecting groove 13 on the second retaining frame body 12, and the connecting block 2 on the second retaining frame body 12 is inserted into the second connecting groove on the first retaining frame body 11, so that the first retaining frame body 11 is docked and connected to the top of the second retaining frame body 12.

[0046] The connecting block 2 is provided with a first connecting hole for inserting the fastener 3; the first retaining frame 11 is provided with a second connecting hole for inserting the fastener 3; the second retaining frame 12 is provided with a third connecting hole for inserting the fastener 3; the first connecting hole, the second connecting hole and the third connecting hole correspond to each other.

[0047] In this way, when the first retainer and / or the second retainer has a connecting block 2 protruding from the end surface, the fastener 3 is inserted and connected to the connecting block 2 in a manner of passing through the first retainer body 11 and the second retainer body 12 in the axial direction of the retainer, thereby fastening the connecting block 2 to the first retainer body 11 and the second retainer body 12, further axially locking the connecting block 2, and improving the overall connection strength of the retainer; therefore, it is necessary to open a first connecting hole in the connecting block 2, set a second connecting hole connected to the first connecting hole in the first retainer, and set a third connecting hole connected to the first connecting hole in the second retainer, so that the first connecting hole, the second connecting hole and the third connecting hole are axially penetrated to form a guide channel, which is convenient for installing the fastener 3 in the guide channel, realizing the second locking connection of the first retainer body 11 and the second retainer body 12, so that the first retainer body 11 and the second retainer body 12 can avoid axial and circumferential loosening and fitting clearance, and further improve the strength and stability of the connection.

[0048] Preferably, based on the structure of the connecting piece in the first embodiment, the structure of the fastener 3 is designed accordingly and applied to the connecting piece in the above embodiment to be connected with the connecting piece in the first embodiment, specifically:

[0049] The fastener 3 is a cylindrical structure and a rivet can be used in this embodiment. The fastener 3 is axially provided with a first step and a second step. The first step is connected to a first spring, and the first spring is used to abut the second connecting hole; the second step is connected to a second spring, and the second spring is used to abut the third connecting hole to connect the first retaining frame body 11 with the second retaining frame body 12.

[0050] In this way, the first step and the second step of the fastener 3 are axially arranged at both ends of the fastener 3, the first step has a first step surface, the second step has a second step surface, the first step is located above the second step in the axial arrangement, the first spring is sleeved on the outside of the first step, the second spring is sleeved on the outside of the second step, the second connecting hole and the third connecting hole have countersunk holes in the axial direction, one end of the first spring abuts on the first step surface, the other end of the first spring abuts on the countersunk hole of the second connecting hole, one end of the second spring abuts on the second step surface, and the other end of the second spring abuts The countersunk hole is connected to the third connecting hole, and the first spring and the second spring are symmetrically connected to the two sides of the first connecting hole respectively. The purpose is that when the cylindrical fastener 3 is installed in the first connecting hole, the first step on the fastener 3 is installed in the second connecting hole, and the second step of the fastener 3 is located in the third connecting hole. At this time, the first spring abuts against the second connecting hole inwardly, and the second spring abuts against the third connecting hole inwardly. The resilience of the first spring and the second spring makes the first retaining frame body 11 and the second retaining frame body 12 abut against each other, thereby realizing the fastening connection between the first retaining frame body 11 and the second retaining frame body 12.

[0051] Embodiment 2: The connecting member includes a first plug-in block and a second plug-in block, the first plug-in block is circumferentially connected to a side of the first retaining frame body 11 facing the second retaining frame body 12, and the second plug-in block is circumferentially connected to a side of the second retaining frame body 12 facing the first retaining frame body 11; the first plug-in block is cooperatively connected with the second plug-in block.

[0052] In this way, the first plug-in block is distributed along the circumference of the first retaining frame body 11, and the bottom end of the first plug-in block does not protrude from the end face of the first retaining frame body 11, but is located within the outer circumferential surface of the first retaining frame body 11. Similarly, the second plug-in block is distributed along the circumference of the second retaining frame body 12, and its bottom end does not protrude from the end face of the second retaining frame body 12, but is located within the outer circumferential surface of the second retaining frame body 12. However, the top end of the first plug-in block protrudes from the bottom surface of the first retaining frame body 11, and the top end of the second plug-in block protrudes from the top surface of the second retaining frame body 12. In addition, the first plug-in block and the second plug-in block have a wedge-shaped structure, so that the first plug-in block and the second plug-in block can not only realize a plug-in connection but also have a profile locking connection, which further improves the centering performance of the first retaining frame body 11 and the second retaining frame body 12, eliminates the circumferential fitting clearance between the first retaining frame body 11 and the second retaining frame body 12, and improves the connection strength.

[0053] A slot for plugging and connecting the second plug-in block is provided in the first plug-in block; an end of the second plug-in block passes through the first retaining frame 11 to form a positioning block.

[0054] In this way, the first plug-in block is provided with a wedge-shaped slot, which is convenient for matching and connecting with the wedge-shaped second plug-in block. When connected, after the second plug-in block is inserted into the slot, it can pass through the top surface of the first retaining frame body 11, and the protruding part constitutes a structure of a positioning block for connecting with the fastener 3. By providing a positioning block that passes through the first retaining frame and is connected to the fastener 3, the connection strength between the connecting piece and the first retaining frame body 11 and the second retaining frame body 12 is further improved, thereby realizing the second heavy locking connection.

[0055] Preferably, based on the structure of the connecting piece in this embodiment, the structure of the fastener 3 is designed accordingly and applied to the connecting piece in the above embodiment to be connected with the connecting piece in the above embodiment 2, specifically:

[0056] The fastener 3 is in a circular ring structure and is disposed on a side of the first retaining frame 11 away from the second retaining frame 12 . A positioning hole for inserting the positioning block is circumferentially disposed on the fastener 3 .

[0057] In this way, when the connecting piece is in the form of a first plug-in block and a second plug-in block, the fastener 3 correspondingly adopts a circular ring structure, the fastener 3 is connected to the top of the first retaining frame body 11, the fastener 3 and the first retaining frame body 11 are coaxially arranged, and the corresponding positioning blocks in the circumferential direction of the fastener 3 are provided with positioning holes, so that when the second plug-in block passes through the first retaining frame body 11, it can be inserted into the positioning hole of the fastener 3 to cooperate with the fastener 3 to further realize the locking connection between the connecting piece, the first retaining frame body 11 and the second retaining frame body 12.

[0058] like Figure 3 As shown, a plurality of first pocket grooves 8 are circumferentially arranged on the first retaining frame body 11, and a plurality of second pocket grooves 9 are circumferentially arranged on the second retaining frame body 12. The first pocket grooves 8 and the second pocket grooves 9 are connected to form pocket holes 10 for mounting rolling bodies 14.

[0059] In this way, the first retaining frame body 11 has first pocket grooves 8 arranged at equal intervals along the circumferential direction, and the second retaining frame body 12 has second pocket grooves 9 arranged at equal intervals along the circumferential direction. The first pocket grooves 8 and the second pocket grooves 9 are both arranged inside the retaining frame body 1, instead of the traditional method of installing the rolling body 14 by connecting a fixed cover between the connecting parts. The strength of the retaining frame formed by the connection between the fixed cover and the connecting part is lower than the structural strength of the integrated retaining frame body 1. The first pocket grooves 8 and the second pocket grooves 9 are connected to form pocket holes 10 for installing the rolling body 14, which further improves the connection strength of the rolling body 14.

[0060] The present application also relates to a bearing, comprising rolling elements 14, an inner ring and an outer ring, and a split retaining cage as described above; the rolling elements 14 are installed in the pockets 10, the inner ring is sleeved inside the retaining cage, and the outer ring is sleeved outside the retaining cage; the inner ring and the outer ring are rotatably connected via the rolling elements 14.

[0061] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0062] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0063] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A split cage, characterized in that: include: A retaining frame body, the retaining frame body comprising a first retaining frame body and a second retaining frame body; the first retaining frame body and the second retaining frame body are butt-connected via a connecting assembly; A connecting assembly, the connecting assembly comprising a connecting piece and a fastener; the connecting piece is arranged between the first retaining frame body and the second retaining frame body at intervals along the circumferential direction, and is used to connect the first retaining frame body and the second retaining frame body; the fastener is used to lock the connecting piece with the first retaining frame body and the second retaining frame body; The connecting member comprises a connecting block; the connecting block protrudes and is connected to the end surface of the first retaining frame body facing the second retaining frame body, and / or the connecting block protrudes and is connected to the end surface of the second retaining frame body facing the first retaining frame body.

2. A split retainer according to claim 1, characterized in that: When the first retaining frame body is constructed to have the connecting block, the second retaining frame body is provided with a first connecting groove corresponding to the connecting block, so that the connecting block is cooperated and connected with the first connecting groove; and / or when the second retaining frame body is constructed to have the connecting block, the first retaining frame body is provided with a second connecting groove corresponding to the connecting block, so that the connecting block is cooperated and connected with the second connecting groove.

3. A split retainer according to claim 1, characterized in that: A first connecting hole for inserting the fastener is provided in the connecting block; a second connecting hole for inserting the fastener is provided in the first retaining frame body; a third connecting hole for inserting the fastener is provided in the second retaining frame body; the first connecting hole, the second connecting hole and the third connecting hole correspond to each other.

4. A split retainer according to claim 3, characterized in that: The fastener is a cylindrical structure, and is axially provided with a first step and a second step. The first step is connected to a first spring, and the first spring is used to abut against the second connecting hole; the second step is connected to a second spring, and the second spring is used to abut against the third connecting hole, so as to connect the first retaining frame body with the second retaining frame body.

5. The split retainer according to claim 1, characterized in that: The first retaining frame body is provided with a plurality of first pocket grooves along the circumferential direction, and the second retaining frame body is provided with a plurality of second pocket grooves along the circumferential direction, and the first pocket grooves are connected with the second pocket grooves to form pocket holes for mounting rolling bodies; the first retaining frame body and the second retaining frame body are respectively molded by injection molding; the first retaining frame body is made of PA46 material or PEEK material, and / or the second retaining frame body is made of PA46 material or PEEK material.

6. A bearing, characterized in that: It comprises rolling bodies, an inner ring and an outer ring, and a split retaining frame as described in any one of claims 1 to 5; the rolling bodies are installed in pockets, the inner ring is sleeved inside the retaining frame, and the outer ring is sleeved outside the retaining frame; the inner ring and the outer ring are rotatably connected through the rolling bodies.

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