Corrugated clamp spring for bearing
By using a partition groove, swing end extension plate and locking structure in the corrugated spring, combined with the stop cooperation between the convex ribs and the receiving groove, the deformation problem of the corrugated spring is solved, and its stability and limitation with the inner ring are improved. The positioning effect improves the quality and installation efficiency of the bearing.
Patent Information
- Application Number
- CN202421242640.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The corrugated springs in existing double-row tapered roller bearings are deformed due to the multiple protruding sections and connecting grooves in the circumferential direction, which affects the connection stability and limiting effect of the corrugated springs and the inner ring.
A corrugated spring for bearings is designed, and an extension piece that divides the groove and swing end is used to limit the circumferential movement of the extension piece through the locking structure to avoid deformation, and to enhance structural stability through the stop fit of the convex ribs and the accommodating groove. .
It improves the connection stability and limiting effect between the corrugated spring and the inner ring, enhances the product quality of the bearing, and reduces installation difficulty and time.
Smart Images
Figure CN222315694U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of bearings, and specifically relates to a corrugated retaining spring for a bearing. Background Art
[0002] Double-row tapered roller bearings are double-row roller bearings with tapered raceways, which include two inner rings arranged opposite to each other, an outer ring sleeved outside the two inner rings, and rolling elements arranged between the inner rings and the outer rings. Since double-row tapered roller bearings have two inner rings, a corrugated retaining spring needs to be arranged between the two inner rings to increase the stability of the two inner rings.
[0003] In the related art, the corrugated circumferential spring is arc-shaped and has multiple arc segments and protruding segments between the arc segments along its circumference. The protruding segments are protruding toward the outside of the corrugated circumferential spring, and the protruding segments are provided with connecting grooves extending to the arc segments. The ends of the two inner rings close to each other are provided with annular grooves, and the groove walls of the annular grooves are provided with accommodating grooves so that convex ribs are formed at the ends of the inner rings. After the corrugated circumferential spring is installed on the inner ring, the protruding segments are located in the annular grooves, and the convex ribs on the inner rings are located in the connecting grooves so that the corrugated circumferential spring limits the two inner rings. However, since the corrugated circumferential spring has multiple protruding segments and the connecting grooves are provided on the protruding segments, the corrugated circumferential spring is easily deformed, which affects the connection stability between the corrugated circumferential spring and the inner ring, and further affects the limiting effect of the corrugated circumferential spring on the inner ring. Utility Model Content
[0004] The present application provides a corrugated retaining spring for a bearing, so as to increase the connection stability between the corrugated retaining spring and the inner ring, thereby increasing the limiting effect of the corrugated retaining spring on the inner ring.
[0005] The technical solution adopted in this application is:
[0006] A corrugated retaining spring for a bearing comprises a retaining spring body, wherein the retaining spring body has an arc segment and a protruding segment between the arc segments along its circumference, the protruding segment protrudes toward the outside of the retaining spring body, and the protruding segment is provided with a connecting groove extending to the arc segment, the retaining spring body has a separating groove and swinging ends located on both sides of the separating groove, both of the swinging ends are extended with extension pieces overlapping in the radial direction of the retaining spring body, a locking structure is provided between the two extension pieces, and the two extension pieces are connected by the locking structure to limit the relative movement of the two extension pieces in the circumferential direction of the retaining spring body.
[0007] By adopting the above-mentioned technical scheme, when installing the corrugated retaining spring in the present application, first press one end of the extension piece located on the inner side so that the extension piece located on the inner side is deformed toward the inner side of the retaining spring body, and then separate the two extension pieces, and then install the other extension piece into the annular groove of the inner ring, and then continue to press the retaining spring body along the circumference of the retaining spring body, so that the retaining spring body gradually enters the annular groove of the inner ring, and at the same time, the extension piece located on the inner side gradually moves toward the direction of the inner ring and finally the two extension pieces are connected together through the locking structure, so that the locking structure limits the circumferential movement of the two extension pieces in the retaining spring body to avoid the situation where the retaining spring body is easily deformed, thereby increasing the stability of the annular structure of the retaining spring body, and then increasing the connection stability of the corrugated retaining spring and the inner ring, so as to increase the limiting effect of the corrugated retaining spring on the inner ring.
[0008] Optionally, the locking structure includes a locking portion provided on one of the extension pieces and a matching portion provided on the other extension piece, and the locking portion cooperates with the matching portion stopper to limit the relative movement of the two extension pieces in the circumferential direction of the retaining spring body.
[0009] By adopting the above-mentioned technical solution, after the corrugated retaining spring is installed on the inner ring, the locking part and the mating part stop cooperate to limit the relative movement of the two extension plates in the circumferential direction of the retaining spring body, so as to increase the stability of the annular structure of the corrugated retaining spring, thereby increasing the connection stability between the corrugated retaining spring and the inner ring, and further increasing the limiting effect of the corrugated retaining spring on the inner ring, so as to increase the product quality of the bearing installed with the corrugated retaining spring in this application.
[0010] Optionally, the locking portion is a convex rib arranged parallel to the axial direction of the retaining spring body, and the matching portion is a receiving groove for receiving the convex rib.
[0011] By adopting the above technical solution, after the corrugated retaining ring is installed on the inner ring, the convex rib is located in the receiving groove, and then the side wall of the convex rib cooperates with the groove wall stop of the receiving groove, so that the convex rib and the stop of the receiving groove cooperate to limit the relative movement of the two extension pieces in the circumferential direction of the retaining ring body, so as to ensure the stability of the annular structure of the retaining ring body and avoid the situation where the retaining ring body is easily deformed.
[0012] Optionally, the convex rib has a guide section and a stop section located between the guide sections in the axial direction of the retaining ring body, the width of the stop section is greater than the width of the guide section, and the side wall of the stop section is stop-matched with the groove wall of the accommodating groove.
[0013] By adopting the above technical solution, since the width of the stop section is greater than the width of the guide section, when the rib is inserted into the accommodating groove from one side of the accommodating groove, the guide section can form an avoidance with the groove wall of the accommodating groove, so that the rib can enter the accommodating groove more smoothly, thereby reducing the difficulty of installing the corrugated retaining spring and further improving the installation efficiency of the corrugated retaining spring.
[0014] Optionally, the width of the guide segment gradually increases in a direction approaching the stop segment.
[0015] By adopting the above technical solution, since the width of the guide section gradually increases in the direction approaching the stop section, the interference between the end of the stop section and the notch of the accommodating groove is avoided, so that the rib can be inserted into the accommodating groove from one side of the accommodating groove more smoothly, thereby further reducing the difficulty of installing the corrugated retaining spring, and further improving the installation efficiency of the corrugated retaining spring.
[0016] Optionally, the accommodating groove has side sections and a middle section between the side sections in the axial direction of the retaining ring body, the width of the side sections is greater than the width of the middle section, and the side walls of the ribs cooperate with the groove wall stops of the middle section.
[0017] By adopting the above technical solution, since the width of the side section is greater than the width of the middle section, the side opening area of the receiving groove is increased, so that the rib can more easily enter the receiving groove through the side of the receiving groove, thereby reducing the difficulty of installing the corrugated retaining spring and improving the installation efficiency of the corrugated retaining spring.
[0018] Optionally, the width of the side segments gradually increases in a direction approaching the middle segment.
[0019] By adopting the above technical solution, since the width of the side section gradually increases in the direction approaching the middle section, when the convex rib enters the accommodating groove through the side of the accommodating groove, the groove wall at the end of the side section can guide the convex rib so that the convex rib enters the middle section more smoothly, thereby further reducing the difficulty of installing the corrugated retaining spring and further improving the installation efficiency of the corrugated retaining spring.
[0020] Optionally, the extension piece has a fixed end connected to the swing end and a free end opposite to the fixed end, and both sides of the free end are provided with avoidance arc surfaces.
[0021] By adopting the above technical solution, since both sides of the free end are provided with avoidance arc surfaces, when the convex rib enters the receiving groove through the side opening of the receiving groove, the avoidance arc surface can avoid the relative swing end to avoid the mutual interference between the two, which makes it difficult for the convex rib to enter the receiving groove, thereby improving the installation efficiency of the corrugated retaining spring and reducing the installation difficulty of the corrugated retaining spring. At the same time, since both sides of the free end are provided with avoidance arc surfaces, the two sides of the free end are relatively smooth, thereby avoiding the situation where the two ends of the free end may cause harm to the assembler, thereby improving the assembly experience of the assembler.
[0022] Optionally, the locking structure includes a locking rod and a locking hole provided on the two extension pieces, and the locking rod passes through the locking hole.
[0023] By adopting the above technical solution, after the retaining ring body is installed to the inner ring, the locking rod is installed so that the locking rod is passed through the locking holes of the two extension pieces, and then the locking rod and the locking hole cooperate to achieve the limitation of the relative movement of the two extension pieces in the circumferential direction of the retaining ring body, so as to increase the stability of the annular structure of the corrugated retaining ring, and then increase the limiting effect of the corrugated retaining ring on the inner ring.
[0024] Optionally, the locking rod is arranged perpendicular to the axial direction of the retaining ring body.
[0025] By adopting the above technical solution, since the locking rod is arranged perpendicular to the axial direction of the retaining spring body, and then the two extension plates have a tendency to move relative to each other in the circumferential direction of the retaining spring body, the force exerted by the hole wall of the locking hole on the locking rod is perpendicular to the axial direction of the locking rod, so as to avoid the situation where the force exerted by the hole wall of the locking hole on the locking rod may be parallel to the axial component of the locking rod, so as to increase the connection stability between the locking rod and the extension plate, and further increase the annular structure stability of the corrugated retaining spring.
[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0027] 1. The corrugated retaining spring in the present application includes a retaining spring body, which has an arc segment and a protruding segment located between the arc segments along its own circumference, the protruding segment protruding toward the outside of the retaining spring body, and the protruding segment is provided with a connecting groove extending to the arc segment, the retaining spring body has a separation groove and swing ends located on both sides of the separation groove, both swing ends are extended with extension pieces overlapping in the radial direction of the retaining spring body, a locking structure is provided between the two extension pieces, the two extension pieces are connected by the locking structure to limit the relative movement of the two extension pieces in the circumferential direction of the retaining spring body, so as to avoid the situation where the retaining spring body is easily deformed, thereby increasing the stability of the annular structure of the retaining spring body, and then increasing the connection stability of the corrugated retaining spring and the inner ring, so as to increase the limiting effect of the corrugated retaining spring on the inner ring.
[0028] 2. The locking structure in the present application includes a locking portion provided on one of the extension pieces and a matching portion provided on the other extension piece. The locking portion and the matching portion stop cooperate with each other to limit the relative movement of the two extension pieces in the circumferential direction of the retaining spring body, so as to increase the stability of the annular structure of the corrugated retaining spring, thereby increasing the connection stability between the corrugated retaining spring and the inner ring, and further increasing the limiting effect of the corrugated retaining spring on the inner ring, so as to increase the product quality of the bearing equipped with the corrugated retaining spring in the present application.
[0029] 3. The locking portion in the present application is a convex rib arranged parallel to the axial direction of the retaining spring body, and the matching portion is a receiving groove for receiving the convex rib, so that the side wall of the convex rib cooperates with the groove wall stopper of the receiving groove, so that the convex rib and the stopper of the receiving groove cooperate to limit the relative movement of the two extension pieces in the circumferential direction of the retaining spring body, so as to ensure the stability of the annular structure of the retaining spring body and avoid the situation where the retaining spring body is easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0031] Figure 1 This is a schematic diagram of the structure of the corrugated retainer according to one embodiment of the present application;
[0032] Figure 2 This is a schematic structural diagram of the corrugated retainer from another perspective in one embodiment of the present application;
[0033] Figure 3 for Figure 2 A magnified view of the middle A area;
[0034] Figure 4 This is a partial structural schematic diagram of the corrugated retainer according to one embodiment of the present application, mainly showing the convex ribs;
[0035] Figure 5 This is a partial structural schematic diagram of the corrugated retaining spring described in one embodiment of the present application, mainly showing the accommodating groove.
[0036] Reference numerals:
[0037] 1. retaining ring body; 11. arc section; 12. protruding section; 121. connecting groove; 2. extension piece; 3. locking structure; 31. convex rib; 311. guide section; 312. stop section; 32. accommodation groove. DETAILED DESCRIPTION
[0038] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.
[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.
[0040] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.
[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 this application can be understood according to specific circumstances.
[0042] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a 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 "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. 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.
[0043] Reference Figures 1 to 5, discloses a corrugated retaining spring for a bearing, comprising a retaining spring body 1, the retaining spring body 1 having an arc segment 11 and a protruding segment 12 located between the arc segments 11 along its circumference, the protruding segment 12 protruding toward the outside of the retaining spring body 1, and the protruding segment 12 is provided with a connecting groove 121 extending to the arc segment 11, the retaining spring body 1 has a separation groove and swing ends located on both sides of the separation groove, both swing ends are extended with extension pieces 2 overlapping in the radial direction of the retaining spring body 1, a locking structure 3 is provided between the two extension pieces 2, and the two extension pieces 2 are connected by the locking structure 3 to limit the relative movement of the two extension pieces 2 in the circumferential direction of the retaining spring body 1.
[0044] It can be understood that one of the extension pieces 2 is arranged on the inner side of one of the swing ends, and the other extension piece 2 is arranged on the outer side of the other swing end, so that the projections of the two extension pieces 2 in the radial direction of the retaining ring body 1 overlap.
[0045] When installing the corrugated retaining spring in the present application, first press one end of the inner extension piece 2 so that the inner extension piece 2 is deformed toward the inner side of the retaining spring body 1, and then separate the two extension pieces 2, and then install the other extension piece 2 into the annular groove of the inner ring, and then continue to press the retaining spring body 1 along the circumference of the retaining spring body 1, so that the retaining spring body 1 gradually enters the annular groove of the inner ring, and at the same time, the inner extension piece 2 gradually moves toward the direction of the inner ring and finally connects the two extension pieces 2 together through the locking structure 3, so that the locking structure 3 limits the circumferential movement of the two extension pieces 2 in the retaining spring body 1, so as to avoid the situation where the retaining spring body 1 is easily deformed, thereby increasing the stability of the annular structure of the retaining spring body 1, and then increasing the connection stability of the corrugated retaining spring and the inner ring, so as to increase the limiting effect of the corrugated retaining spring on the inner ring.
[0046] It should be noted that limiting the circumferential movement of the two extension pieces 2 in the retaining spring body 1 in the present application means that the two extension pieces 2 cannot move in the circumferential direction of the retaining spring body 1 in the direction of approaching or moving away, that is, the retaining spring cannot be deformed.
[0047] The present application does not specifically limit the structure of the locking structure 3, and it can adopt any one of the following implementations:
[0048] Embodiment 1. In this embodiment, referring to Figure 2 and Figure 3 The locking structure 3 includes a locking portion provided on one of the extension pieces 2 and a matching portion provided on the other extension piece 2 , and the locking portion cooperates with the matching portion stopper to limit the relative movement of the two extension pieces 2 in the circumferential direction of the retaining ring body 1 .
[0049] After the corrugated retaining spring is installed on the inner ring, the locking part cooperates with the mating part stop to limit the relative movement of the two extension pieces 2 in the circumferential direction of the retaining spring body 1, so as to increase the stability of the annular structure of the corrugated retaining spring, thereby increasing the connection stability between the corrugated retaining spring and the inner ring, and further increasing the limiting effect of the corrugated retaining spring on the inner ring, so as to increase the product quality of the bearing installed with the corrugated retaining spring in this application.
[0050] The present application does not specifically limit the structure of the locking portion and the matching portion, and it can adopt any one of the following embodiments:
[0051] Embodiment 1, in this embodiment, refer to Figure 3 , Figure 4 and Figure 5 , the locking part is a convex rib 31 arranged parallel to the axial direction of the circlip body 1, and the matching part is a receiving groove 32 for receiving the convex rib 31. That is to say, after the corrugated circlip is installed on the inner ring, the convex rib 31 is located in the receiving groove 32, and then the side wall of the convex rib 31 is matched with the groove wall stopper of the receiving groove 32, so that the convex rib 31 and the stopper of the receiving groove 32 are matched to limit the relative movement of the two extension pieces 2 in the circumferential direction of the circlip body 1, so as to ensure the stability of the annular structure of the circlip body 1 and prevent the circlip body 1 from being easily deformed.
[0052] The present application does not specifically limit the structure of the rib 31. Preferably, refer to Figure 4 The convex rib 31 has a guide section 311 and a stop section 312 located between the guide sections 311 in the axial direction of the retaining spring body 1. The width of the stop section 312 is greater than the width of the guide section 311. The side wall of the stop section 312 cooperates with the groove wall of the accommodating groove 32 to stop the convex rib 31. When the convex rib 31 is inserted into the accommodating groove 32 from one side of the accommodating groove 32, the guide section 311 can form an avoidance with the groove wall of the accommodating groove 32, so that the convex rib 31 can enter the accommodating groove 32 more smoothly, thereby reducing the difficulty of installing the corrugated retaining spring and improving the installation efficiency of the corrugated retaining spring.
[0053] It can be understood that the guide segment 311 is located at the end of the rib 31 in the axial direction of the retaining ring body 1 , that is, two guide segments 311 are provided, and the stop segment 312 is located between the two guide segments 311 .
[0054] Further, see Figure 4 The width of the guide section 311 gradually increases in the direction approaching the stop section 312, thereby avoiding the interference between the end of the stop section 312 and the notch of the receiving groove 32, so that the rib 31 can be inserted into the receiving groove 32 from one side of the receiving groove 32 more smoothly, so as to further reduce the difficulty of installing the corrugated retaining spring, and further improve the installation efficiency of the corrugated retaining spring.
[0055] In other implementation examples, the rib 31 may also be a strip structure with a constant width.
[0056] The present application does not specifically limit the structure of the receiving groove 32, and the receiving groove 32 may adopt any one of the following implementation examples:
[0057] Implementation example 1. In this implementation example, the receiving groove 32 has side sections and a middle section between the side sections in the axial direction of the retaining spring body 1. The width of the side sections is greater than the width of the middle section. The side walls of the rib 31 cooperate with the groove wall stoppers of the middle section, thereby increasing the side opening area of the receiving groove 32 so that the rib 31 can more easily enter the receiving groove 32 through the side of the receiving groove 32, thereby reducing the difficulty of installing the corrugated retaining spring and improving the installation efficiency of the corrugated retaining spring.
[0058] It can be understood that the side section is located at the end of the accommodating groove 32 in the axial direction of the retaining ring body 1, that is, two side sections are provided, and the middle section is located between the two side sections.
[0059] Furthermore, the width of the side section gradually increases in the direction approaching the middle section, so that when the rib 31 enters the receiving groove 32 through the side of the receiving groove 32, the groove wall at the end of the side section can guide the rib 31, so that the rib 31 can enter the middle section more smoothly, thereby further reducing the difficulty of installing the corrugated retaining spring, and further improving the installation efficiency of the corrugated retaining spring.
[0060] Implementation Example 2: In this implementation example, refer to Figure 5 The two opposite groove walls of the accommodating groove 32 are straight wall structures, that is, the distance between the two opposite groove walls of the accommodating groove 32 is constant.
[0061] Embodiment 2: In this embodiment, the locking portion and the matching portion are tooth-like structures respectively provided on the two extension pieces 2, and the two tooth-like structures mesh with each other to limit the relative movement of the two extension pieces 2 in the circumferential direction of the retaining spring body 1.
[0062] In a preferred embodiment, the extension piece 2 has a fixed end connected to the swing end and a free end opposite to the fixed end, and both sides of the free end are provided with avoidance arc surfaces, so that when the convex rib 31 enters the receiving groove 32 through the side opening of the receiving groove 32, the avoidance arc surface can avoid the relative swing end to avoid the mutual interference between the two, which makes it difficult for the convex rib 31 to enter the receiving groove 32, thereby improving the installation efficiency of the corrugated retaining spring and reducing the installation difficulty of the corrugated retaining spring. At the same time, since both sides of the free end are provided with avoidance arc surfaces, the two sides of the free end are relatively smooth, so as to avoid the two ends of the free end from causing harm to the assembler, so as to improve the assembly experience of the assembler.
[0063] Preferably, the end face of the free end is an arc-shaped surface to ensure the avoidance effect between the free end and the swing end, thereby ensuring the installation efficiency of the thermal insulation retaining spring.
[0064] Embodiment 2, in this embodiment, the locking structure 3 includes a locking rod and a locking hole provided on two extension pieces 2, and the locking rod is inserted into the locking hole. It can be understood that after the retaining spring body 1 is installed to the inner ring, the locking rod is installed so that the locking rod is inserted into the locking holes of the two extension pieces 2, and then the locking rod cooperates with the locking hole to limit the relative movement of the two extension pieces 2 in the circumferential direction of the retaining spring body 1, so as to increase the stability of the annular structure of the corrugated retaining spring, and further increase the limiting effect of the corrugated retaining spring on the inner ring.
[0065] Furthermore, the locking rod is arranged perpendicular to the axial direction of the retaining spring body 1, so that when the two extension pieces 2 have a tendency to move relative to each other in the circumferential direction of the retaining spring body 1, the force exerted by the hole wall of the locking hole on the locking rod is perpendicular to the axial direction of the locking rod, so as to avoid the situation where the force exerted by the hole wall of the locking hole on the locking rod may be directed in a direction parallel to the axial component of the locking rod, so as to increase the connection stability between the locking rod and the extension piece 2, and further increase the annular structure stability of the corrugated retaining spring.
[0066] Furthermore, the end of the locking rod is provided with a chamfer along its circumference, so as to facilitate the insertion of the locking rod into the locking hole, thereby facilitating the installation of the corrugated retaining spring.
[0067] Anything not described in this application can be achieved by adopting or drawing on existing technologies.
[0068] 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.
[0069] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A corrugated circlip for a bearing, characterized in that: The invention comprises a retaining spring body (1), wherein the retaining spring body (1) has an arc segment (11) and a protruding segment (12) located between the arc segments (11) along its circumference, wherein the protruding segment (12) is arranged to protrude toward the outside of the retaining spring body (1), and the protruding segment (12) is provided with a connecting groove (121) extending to the arc segment (11), the retaining spring body (1) has a separation groove and swing ends located on both sides of the separation groove, and both of the two swing ends are extended with extension pieces (2) overlapping in the radial direction of the retaining spring body (1), and a locking structure (3) is arranged between the two extension pieces (2), and the two extension pieces (2) are connected by the locking structure (3) to limit the relative movement of the two extension pieces (2) in the circumferential direction of the retaining spring body (1).
2. A corrugated retainer spring for a bearing according to claim 1, characterized in that: The locking structure (3) comprises a locking portion provided on one of the extension pieces (2) and a matching portion provided on the other extension piece (2), wherein the locking portion cooperates with the matching portion stopper to limit the relative movement of the two extension pieces (2) in the circumferential direction of the retaining spring body (1).
3. A corrugated retainer spring for a bearing according to claim 2, characterized in that: The locking portion is a convex rib (31) arranged parallel to the axial direction of the clip body (1), and the matching portion is a receiving groove (32) for receiving the convex rib (31).
4. A corrugated retainer spring for a bearing according to claim 3, characterized in that: The convex rib (31) has a guide section (311) and a stop section (312) located between the guide sections (311) in the axial direction of the retaining ring body (1); the width of the stop section (312) is greater than the width of the guide section (311); and the side wall of the stop section (312) is stop-matched with the groove wall of the accommodating groove (32).
5. A corrugated circlip for a bearing according to claim 4, characterized in that: The width of the guide section (311) gradually increases in a direction approaching the stop section (312).
6. A corrugated retainer spring for a bearing according to claim 3, characterized in that: The accommodating groove (32) has side sections and a middle section located between the side sections in the axial direction of the retaining ring body (1); the width of the side sections is greater than the width of the middle section; the side wall of the convex rib (31) cooperates with the groove wall stopper of the middle section.
7. A corrugated retainer spring for a bearing according to claim 6, characterized in that: The width of the side section gradually increases in a direction approaching the middle section.
8. The corrugated retainer spring for a bearing according to claim 1, characterized in that: The extension piece (2) comprises a fixed end connected to the swing end and a free end opposite to the fixed end, and both sides of the free end are provided with avoidance arc surfaces.
9. The corrugated retainer spring for a bearing according to claim 1, characterized in that: The locking structure (3) comprises a locking rod and a locking hole provided on the two extension pieces (2), and the locking rod passes through the locking hole.
10. A corrugated circlip for a bearing according to claim 9, characterized in that: The locking rod is arranged perpendicular to the axial direction of the clamping spring body (1).