Spliced and assembled annular clamp spring

Abstract

The utility model relates to the technical field of bearings, and discloses a spliced and assembled annular clamp spring which comprises a body and convex ribs arranged on the outer walls of the two axial ends of the body, the body is provided with a first section and a second section in the circumferential direction of the body, and locking structures are arranged at the ends, close to each other, of the first section and the second section. The end of the first section and the end of the second section are connected through a locking structure so that movement of the first section and the second section in the circumferential direction of the body can be limited, then the arc length of the first section and the arc length of the second section can be reduced, pressing force needing to be applied to the first section and the second section when the annular clamp spring is installed can be reduced, and the labor-saving effect is achieved; and therefore, the effect of conveniently mounting the annular clamp spring to the inner ring is achieved, and the mounting efficiency of the annular clamp spring is improved. Meanwhile, only small pressing force needs to be applied to the first section and the second section, and then the situation that metal fatigue is generated due to large deformation of the body is avoided, so that the deformation capacity of the annular clamp spring is guaranteed, and then the connection stability of the annular clamp spring and the inner ring is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of bearings, and in particular relates to a spliced ​​and assembled annular retaining ring. 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 ring and the outer ring. Since it has two inner rings, an annular 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 annular retaining spring includes a main body with a major arc cross section and convex ribs provided on the outer walls of the two axial ends of the main body. The inner walls of the two inner rings close to each other are provided with annular grooves for accommodating the main body, and the groove walls of the annular grooves are provided with limiting grooves for accommodating the convex ribs. After the annular retaining spring is installed to the two inner rings, the main body is located in the annular grooves of the two inner rings so that the inner walls of the annular retaining spring do not protrude from the inner walls of the inner rings. The two convex ribs are respectively located in the limiting grooves of the two inner rings to limit the two inner rings, thereby increasing the stability of the inner rings. When installing the retaining spring, it is necessary to press the two ends of the retaining spring so that the ends of the retaining spring are deformed toward the inner side of the retaining spring, thereby reducing the diameter of the retaining spring, so that the retaining spring can enter the inner part of the inner ring. However, when pressing the two ends of the retaining spring, a large pressure needs to be applied to the two ends of the retaining spring so that the retaining spring undergoes a large deformation before the retaining spring can be installed in the inner ring. This may easily cause metal fatigue of the retaining spring, thereby affecting the deformation ability of the retaining spring and the connection stability between the retaining spring and the inner ring, and also makes the installation of the retaining spring more laborious. Utility Model Content

[0004] The present application provides a spliced ​​and assembled annular retaining spring to ensure the elastic deformation ability of the retaining spring and the connection stability between the retaining spring and the inner ring, while achieving the effect of facilitating the installation of the retaining spring.

[0005] The technical solution adopted in this application is:

[0006] A spliced ​​and assembled annular retaining spring comprises a main body and convex ribs arranged on the outer walls of the two axial ends of the main body, the main body having a first section and a second section along its circumference, the ends of the first section and the second section close to each other are provided with a locking structure, the ends of the first section and the second section are connected by the locking structure to limit the movement of the first section and the second section in the circumferential direction of the main body.

[0007] By adopting the above-mentioned technical scheme, when installing the annular retaining spring in the present application, the two ends of the first section are first pressed to deform the first section, and then the deformed first section is installed in the inner ring, and then the second section is pressed to deform the second section, and then the deformed second section is placed in the inner ring, and the end of the second section is aligned with the end of the first section, and then the second section is pressed toward the outside of the inner ring so that the second section is connected to the first section through the locking structure, so that the locking structure limits the ends of the first section and the second section to avoid relative movement of the first section and the second section in the circumferential direction of the main body, thereby ensuring the annular structure stability of the annular retaining spring to increase the connection stability between the annular retaining spring and the inner ring.

[0008] In summary, since the main body has the first section and the second section, the arc length of the first section and the second section is reduced, so that when the first section and the second section are installed, only a small deformation of the first section and the second section is required to install them inside the inner ring, that is, the pressing force applied to the first section and the second section when installing the annular retaining spring is reduced to achieve a labor-saving effect, thereby achieving the effect of facilitating the installation of the annular retaining spring to the inner ring and improving the installation efficiency of the annular retaining spring. At the same time, since only a small pressing force needs to be applied to the first section and the second section when installing the annular retaining spring, the situation of metal fatigue caused by large deformation of the main body is avoided, thereby ensuring the deformation capacity of the annular retaining spring, thereby increasing the connection stability of the annular retaining spring and the inner ring.

[0009] In addition, compared with the solution in the prior art in which the main body has a deformation notch, the annular retaining spring in the present application is continuously arranged in the circumferential direction, thereby increasing the connection area between the annular retaining spring and the inner ring, thereby increasing the limiting effect of the annular retaining spring on the inner ring, and at the same time enabling the annular retaining spring to maintain dynamic balance in the circumferential direction of the inner ring.

[0010] Optionally, the arc length L1 of the first segment and the arc length L2 of the second segment satisfy: L1≥3L2.

[0011] By adopting the above technical solution, since the arc length of the first section is greater than or equal to three times the arc length of the second section, the elastic deformation range of the first section is greater than the elastic deformation range of the second section, so as to ensure the connection stability between the annular retaining spring and the inner ring, and at the same time, it can increase the binding effect of the first section on the second section through the locking structure, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0012] Optionally, the circumference C of the main body and the arc length L2 of the second segment satisfy: 1 / 6C≤L2≤1 / 4C.

[0013] By adopting the above technical solution, if L2 is less than 1 / 6C, the arc length of the first section will be longer, and then when the first section is installed, the first section also needs to be deformed greatly, which may cause the first section to produce metal fatigue and be unable to recover the deformation; if L2 is greater than 1 / 4C, the arc length of the first section will be smaller, and then the elastic deformation capacity of the first section will be affected, thereby affecting the binding effect of the first section on the second section through the locking structure, and further affecting the connection stability between the annular retaining spring and the inner ring; and setting the arc length L2 of the second section to be greater than or equal to 1 / 6C and less than or equal to 1 / 4C, on the one hand, the pressing force required to install the annular retaining spring is reduced to achieve a labor-saving effect, and on the other hand, the connection stability between the annular retaining spring and the inner ring is ensured. At the same time, since the arc length L2 of the second section satisfies the requirements of greater than or equal to 1 / 6C and less than or equal to 1 / 4C, when the second section is installed, it is not necessary to press the two ends of the second section to install it to the inner ring, so as to reduce the installation difficulty of the second section and thus improve the installation efficiency of the annular retaining spring.

[0014] Optionally, the locking structure includes a locking plate provided at one of the first section and the second section and a locking groove provided at the other of the two, and the locking plate is plugged into the locking groove so that the circumferential side of the locking plate and the groove wall of the locking groove are stop-fitted in the circumferential direction of the main body.

[0015] By adopting the above technical solution, after the first section is installed on the inner ring, the second section is placed inside the inner ring, and the locking piece is aligned with the locking groove. Then, a force is applied to the second section toward the outer side of the inner ring so that the locking piece and the locking groove are plugged into each other. In the process of connecting the second section with the first section, it is only necessary to apply a force toward the outside of the inner ring to the second section, thereby reducing the difficulty of connecting and matching the second section with the first section, so as to further improve the assembly efficiency of the annular retaining ring.

[0016] Furthermore, after the annular retaining ring is installed on the inner ring, the locking plate is located in the locking groove, and the side wall of the locking plate cooperates with the groove wall stop of the locking groove to limit the movement of the first section and the second section in the circumferential direction of the main body, thereby avoiding the first section and the second section from moving away from each other in the circumferential direction of the main body, thereby increasing the connection stability of the first section and the second section, and further increasing the connection stability of the annular retaining ring and the inner ring.

[0017] Optionally, the locking piece has a fixed end and a free end opposite to the fixed end, and a width of the free end is greater than a width of the fixed end.

[0018] By adopting the above technical solution, since the width of the free end is greater than the width of the fixed end, when the first section and the second section move away from each other in the circumferential direction of the main body, the side wall of the free end can cooperate with the groove wall stop of the limiting groove to increase the connection stability between the second section and the first section, thereby ensuring the annular structure stability of the annular retaining spring, so as to further increase the connection stability between the annular retaining spring and the inner ring.

[0019] Optionally, the width of the locking piece gradually increases from the fixed end to the free end, so that the width of the free end is greater than the width of the fixed end.

[0020] By adopting the above technical scheme, since the width of the free end is greater than the width of the fixed end, which is formed by the gradual increase of the width of the locking plate from the fixed end to the free end, when the locking plate cooperates with the groove wall stop of the locking groove, the two opposite groove wall stops on both sides of the locking plate evenly cooperate with each other, so as to increase the stop cooperation area between the locking plate and the locking groove, thereby further increasing the connection stability between the second section and the first section, so as to further ensure the annular structure stability of the annular retaining spring, and further increase the connection stability between the annular retaining spring and the inner ring.

[0021] Optionally, the locking piece has a fixed section and a free section, the width of the free section is greater than the width of the fixed section, the end of the fixed section away from the free section forms the fixed end, and the end of the free section away from the fixed section forms the free end.

[0022] By adopting the above technical solution, since the width of the free section is greater than the width of the fixed section, the width of the free end is also greater than the width of the fixed end, thereby realizing the stop cooperation between the locking plate and the locking groove wall. At the same time, when the locking plate and the groove wall stop cooperate with each other, the forces exerted on both are parallel to the circumference of the annular retaining spring, and there is no component force in other directions, thereby increasing the connection stability between the locking plate and the locking groove, and then increasing the stability of the annular retaining spring.

[0023] Optionally, there is a gap between the circumferential side of the locking piece and the groove wall of the locking groove, so that the first section and the second section have a movement clearance in the circumferential direction of the body.

[0024] By adopting the above technical solution, since there is a gap between the peripheral side of the locking piece and the groove wall of the locking groove, a clearance can be formed between the locking piece and the locking groove for relative movement between the second section and the first section, so that the annular retaining spring can be automatically adjusted within a certain range to meet the needs of various working conditions. At the same time, the situation in which the life of the annular retaining spring is shortened due to hard connection is avoided, so as to achieve the effect of extending the service life of the annular retaining spring.

[0025] Optionally, the main body has a clamping area opposite to the convex rib and a connecting area located between the clamping areas in the axial direction, and the locking piece and the locking groove are both arranged in the connecting area.

[0026] By adopting the above technical solution, since the locking plate and the locking groove are both arranged in the connection area, the locking plate and the locking groove are formed to avoid the convex rib, so as to avoid the situation where the structural strength of the convex rib is affected by the setting of the locking plate or the locking groove at the convex rib, and at the same time, the length of the convex rib is guaranteed to ensure the connection stability between the annular retaining spring and the inner ring.

[0027] Optionally, the main body has a clamping area opposite to the convex rib and a connecting area located between the clamping areas in the axial direction, and the connecting area is provided with a plurality of weight-reducing holes.

[0028] By adopting the above technical solution, since a plurality of weight-reducing holes are provided in the connection area, on the one hand, the influence of the locking structure on the weight of the annular retaining spring is reduced to ensure the lightweight of the retaining spring, and on the other hand, the weight-reducing holes can also assist in the heat dissipation of the inner ring, so that the heat generated by the inner ring can be quickly discharged through the weight-reducing holes, thereby improving the heat dissipation efficiency of the inner ring to ensure the service life of the inner ring.

[0029] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0030] 1. The annular retaining spring in the present application comprises a body and convex ribs arranged on the outer walls of the two axial ends of the body, the body has a first section and a second section along its circumference, the ends of the first section and the second section close to each other are provided with a locking structure, the ends of the first section and the second section are connected by the locking structure to limit the movement of the first section and the second section in the circumferential direction of the body, thereby reducing the arc length of the first section and the second section, so that when the first section and the second section are installed, only a small deformation of the first section and the second section is required to install them inside the inner ring, that is, the pressing force required to be applied to the first section and the second section when installing the annular retaining spring is reduced to achieve a labor-saving effect, thereby achieving an effect of facilitating the installation of the annular retaining spring to the inner ring and improving the installation efficiency of the annular retaining spring. At the same time, since only a small pressing force is applied to the first section and the second section when installing the annular retaining spring, the metal fatigue caused by the large deformation of the body is avoided, thereby ensuring the deformation capacity of the annular retaining spring, thereby increasing the connection stability of the annular retaining spring and the inner ring.

[0031] 2. In the present application, the arc length L1 of the first section and the arc length L2 of the second section satisfy: L1≥3L2, thereby making the elastic deformation range of the first section larger than the elastic deformation range of the second section, so as to ensure the connection stability between the annular retaining spring and the inner ring, and at the same time increase the binding effect of the first section on the second section through the locking structure, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0032] 3. In the present application, the circumference C of the body and the arc length L2 of the second section satisfy: 1 / 6C≤L2≤1 / 4C, which reduces the pressing force required for installing the annular retaining spring to achieve a labor-saving effect, and ensures the connection stability between the annular retaining spring and the inner ring. At the same time, since the arc length L2 of the second section satisfies greater than or equal to 1 / 6C and less than or equal to 1 / 4C, when installing the second section, it is not necessary to press the two ends of the second section to install it to the inner ring, thereby reducing the difficulty of installing the second section and improving the installation efficiency of the annular retaining spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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:

[0034] Figure 1 This is a schematic diagram of the structure of the annular retaining spring in one embodiment of the present application;

[0035] Figure 2 This is a structural schematic diagram of the second section in one implementation manner of the present application;

[0036] Figure 3 This is a schematic structural diagram of the annular retaining spring in another embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Main body; 11. First section; 111. Clamping area; 112. Connecting area; 12. Second section; 2. Raised rib; 3. Locking structure; 31. Locking piece; 311. Fixed section; 312. Free section; 32. Locking groove. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Reference Figures 1 to 3 , discloses a spliced ​​and assembled annular retaining spring, comprising a main body 1 and convex ribs 2 arranged on the outer walls of the main body 1 at both axial ends, the main body 1 having a first section 11 and a second section 12 along its circumference, a locking structure 3 is arranged at the ends of the first section 11 and the second section 12 close to each other, the ends of the first section 11 and the second section 12 are connected by the locking structure 3 to limit the movement of the first section 11 and the second section 12 in the circumferential direction of the main body 1.

[0045] When installing the annular retaining ring in the present application, first press the two ends of the first section 11 to deform the first section 11, then install the deformed first section 11 into the inner ring, and then press the second section 12 to deform the second section 12, and then place the deformed second section 12 into the inner ring, and align the end of the second section 12 with the end of the first section 11, and then press the second section 12 toward the outside of the inner ring so that the second section 12 is connected to the first section 11 through the locking structure 3, so that the locking structure 3 limits the ends of the first section 11 and the second section 12 to avoid relative movement of the first section 11 and the second section 12 in the circumferential direction of the main body 1, thereby ensuring the annular structure stability of the annular retaining ring to increase the connection stability between the annular retaining ring and the inner ring.

[0046] In summary, since the body 1 has the first section 11 and the second section 12, the arc length of the first section 11 and the second section 12 is reduced, so that when the first section 11 and the second section 12 are installed, only a small deformation of the first section 11 and the second section 12 is required to install them inside the inner ring, that is, the pressing force applied to the first section 11 and the second section 12 when installing the annular retaining spring is reduced to achieve a labor-saving effect, thereby achieving the effect of facilitating the installation of the annular retaining spring to the inner ring and improving the installation efficiency of the annular retaining spring. At the same time, since only a small pressing force is applied to the first section 11 and the second section 12 when installing the annular retaining spring, the metal fatigue caused by the large deformation of the body 1 is avoided, thereby ensuring the deformation capacity of the annular retaining spring, thereby increasing the connection stability of the annular retaining spring and the inner ring.

[0047] In addition, compared with the solution in the prior art in which the main body 1 has a deformation notch, the annular retaining spring in the present application is continuously arranged in the circumferential direction, thereby increasing the connection area between the annular retaining spring and the inner ring, thereby increasing the limiting effect of the annular retaining spring on the inner ring, and at the same time enabling the annular retaining spring to maintain dynamic balance in the circumferential direction of the inner ring.

[0048] It should be noted that the ends of the first section 11 and the second section 12 mentioned above are connected by the locking structure 3 to limit the circumferential movement of the first section 11 and the second section 12 in the main body 1, which means that the first section 11 and the second section 12 cannot move in the circumferential direction of the main body 1 in a direction close to or away from each other.

[0049] The present application does not specifically limit the number of the first section 11 and the second section 12. Preferably, the first section 11 and the second section 12 are each provided with one section to ensure the annular structural strength of the annular retaining spring and the connection stability between the annular retaining spring and the inner ring. In other embodiments, the second section 12 may also be provided with two or more sections.

[0050] In a preferred embodiment, referring to Figure 1 and Figure 3 , the arc length L1 of the first section 11 and the arc length L2 of the second section 12 satisfy: L1≥3L2, thereby making the elastic deformation range of the first section 11 larger than the elastic deformation range of the second section 12, so as to ensure the connection stability between the annular retaining spring and the inner ring, and at the same time increase the binding effect of the first section 11 on the second section 12 through the locking structure 3, thereby increasing the connection stability between the annular retaining spring and the inner ring.

[0051] Further, see Figure 1 and Figure 3 , the circumference C of the main body 1 and the arc length L2 of the second section 12 satisfy: 1 / 6C≤L2≤1 / 4C.

[0052] If L2 is less than 1 / 6C, the arc length of the first section 11 will be longer, and as a result, when installing the first section 11, the first section 11 will also need to be deformed more greatly, which may cause metal fatigue of the first section 11 and make it unable to recover the deformation; if L2 is greater than 1 / 4C, the arc length of the first section 11 will be shorter, and the elastic deformation capacity of the first section 11 will be affected, thereby affecting the binding effect of the first section 11 on the second section 12 through the locking structure 3, and further affecting the connection stability between the annular retaining spring and the inner ring; and setting the arc length L2 of the second section 12 to be greater than or equal to 1 / 6C and less than or equal to 1 / 4C, on the one hand, reduces the pressing force required to install the annular retaining spring to achieve a labor-saving effect, and on the other hand, ensures the connection stability between the annular retaining spring and the inner ring. At the same time, since the arc length L2 of the second section 12 satisfies the requirement of being greater than or equal to 1 / 6C and less than or equal to 1 / 4C, when installing the second section 12, it is not necessary to press the two ends of the second section 12 to install it to the inner ring, thereby reducing the difficulty of installing the second section 12 and improving the installation efficiency of the annular retaining ring.

[0053] The present application does not specifically limit the structure of the locking structure 3. Preferably, refer to Figures 1 to 3 The locking structure 3 includes a locking piece 31 provided at one of the first section 11 and the second section 12 and a locking groove 32 provided at the other of the two. The locking piece 31 is plugged into the locking groove 32 so that the peripheral side of the locking piece 31 and the groove wall of the locking groove 32 are stopped in the circumferential direction of the main body 1.

[0054] After installing the first section 11 to the inner ring, place the second section 12 inside the inner ring, align the locking piece 31 with the locking groove 32, and then apply a force toward the outer side of the inner ring to the second section 12 so that the locking piece 31 and the locking groove 32 are plugged into each other. In the process of connecting the second section 12 with the first section 11, it is only necessary to apply a force toward the outside of the inner ring to the second section 12, thereby reducing the difficulty of connecting and matching the second section 12 with the first section 11, so as to further improve the assembly efficiency of the annular retaining ring.

[0055] Furthermore, after the annular retaining ring is installed on the inner ring, the locking piece 31 is located in the locking groove 32, and then the side wall of the locking piece 31 cooperates with the groove wall stop of the locking groove 32 to limit the circumferential movement of the first section 11 and the second section 12 in the main body 1, thereby avoiding the first section 11 and the second section 12 from moving away from each other in the circumferential direction of the main body 1, thereby increasing the connection stability of the first section 11 and the second section 12, and then increasing the connection stability of the annular retaining ring and the inner ring.

[0056] Better, refer to Figures 1 to 3 The two ends of the first section 11 are respectively provided with locking pieces 31 and locking grooves 32, and the two ends of the second section 12 are respectively provided with locking pieces 31 and locking grooves 32, so that after the second section 12 is connected to the first section 11, the locking pieces 31 on the second section 12 cooperate with the locking grooves 32 on the first section 11, and the locking pieces 31 on the first section 11 cooperate with the locking grooves 32 on the second section 12.

[0057] In a preferred embodiment, referring to Figures 1 to 3 The locking piece 31 has a fixed end and a free end opposite to the fixed end, and the width of the free end is greater than that of the fixed end. As a result, when the first section 11 and the second section 12 move away from each other in the circumferential direction of the main body 1, the side wall of the free end can cooperate with the groove wall stop of the limiting groove to increase the connection stability between the second section 12 and the first section 11, thereby ensuring the annular structure stability of the annular retaining spring, so as to further increase the connection stability between the annular retaining spring and the inner ring.

[0058] It can be understood that the fixed end of the locking piece 31 is an end of the locking piece 31 that is fixedly connected to the corresponding first section 11 or second section 12 .

[0059] The present application does not specifically limit the formation method of the width of the fixed end being smaller than the width of the free end, and any one of the following embodiments may be adopted:

[0060] Embodiment 1, in this embodiment, refer to Figure 3The width of the locking piece 31 gradually increases from the fixed end to the free end, so that the width of the free end is greater than the width of the fixed end, and then when the locking piece 31 cooperates with the groove wall stop of the locking groove 32, the two opposite groove wall stops of the locking groove 32 are evenly matched on the opposite sides of the locking piece 31 to increase the stop matching area between the locking piece 31 and the locking groove 32, thereby further increasing the connection stability between the second section 12 and the first section 11, so as to further ensure the annular structure stability of the annular retaining spring, and further increase the connection stability between the annular retaining spring and the inner ring.

[0061] Embodiment 2, in this embodiment, refer to Figure 1 and Figure 2 The locking piece 31 has a fixed section 311 and a free section 312. The width of the free section 312 is greater than that of the fixed section 311. The end of the fixed section 311 away from the free section 312 forms a fixed end, and the end of the free section 312 away from the fixed section 311 forms a free end, so that the width of the free end is greater than that of the fixed end, thereby realizing the stop cooperation between the locking piece 31 and the wall of the locking groove 32. At the same time, when the locking piece 31 and the wall of the locking groove 32 stop cooperate, the forces received by both are parallel to the circumference of the annular retaining spring, and there is no component force in other directions, thereby increasing the connection stability between the locking piece 31 and the locking groove 32, and further increasing the stability of the annular retaining spring.

[0062] In a preferred embodiment, referring to Figure 1 and Figure 3 There is a gap between the circumferential side of the locking piece 31 and the groove wall of the locking groove 32, so that the first section 11 and the second section 12 have a movement clearance in the circumferential direction of the body 1, so that the annular retaining spring can be automatically adjusted within a certain range to meet the needs of various working conditions, while avoiding the situation where the life of the annular retaining spring is low due to hard connection, so as to achieve the effect of extending the service life of the annular retaining spring. In addition, since there is a gap between the circumferential side of the locking piece 31 and the groove wall of the locking groove 32, it is also convenient to fit the locking piece 31 and the locking groove 32 together, so as to achieve the effect of facilitating the connection of the second section 12 and the first section 11, and then to achieve the effect of facilitating the installation of the annular retaining spring to the inner ring.

[0063] In a preferred embodiment, referring to Figure 2The main body 1 has a clamping area 111 opposite to the convex rib 2 and a connecting area 112 located between the clamping areas 111 in its axial direction. It can be understood that since there are two convex ribs 2, there are two clamping areas 111, and the area between the two clamping areas 111 forms the connecting area 112. The locking piece 31 and the locking groove 32 are both provided in the connecting area 112, so that the locking piece 31 and the locking groove 32 are both avoided with the convex rib 2 to avoid the situation where the structural strength of the convex rib 2 is affected by the provision of the locking piece 31 or the locking groove 32 at the convex rib 2, and at the same time, the length of the convex rib 2 is guaranteed to ensure the connection stability between the annular retaining ring and the inner ring.

[0064] Furthermore, the connection area 112 has a width direction parallel to the axial direction of the main body 1, and the central axis of the locking piece 31 and the locking groove 32 is arranged to coincide with the center dividing line in the width direction of the connection area 112, so that when the locking piece 31 and the locking groove 32 stopper cooperate, the first section 11 and the second section 12 are subjected to balanced forces on both sides of the axial direction of the main body 1, so as to increase the connection stability between the locking piece 31 and the locking groove 32.

[0065] In a preferred embodiment, the main body 1 has a clamping area 111 opposite to the rib 2 and a connecting area 112 located between the clamping areas 111 in its axial direction. The connecting area 112 is provided with a plurality of weight-reducing holes. On the one hand, the influence of the locking structure 3 on the weight of the annular retaining spring is reduced to ensure the lightweight of the retaining spring. On the other hand, the weight-reducing holes can also assist in the heat dissipation of the inner ring, so that the heat generated by the inner ring can be quickly discharged through the weight-reducing holes, thereby improving the heat dissipation efficiency of the inner ring to ensure the service life of the inner ring.

[0066] In a preferred embodiment, a plurality of weight-reducing holes are evenly spaced along the circumference of the body 1 so that the weight of the body 1 is evenly distributed along its circumference to ensure the dynamic balance of the annular 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 spliced ​​and assembled annular retaining spring, characterized in that: The invention comprises a body (1) and convex ribs (2) arranged on the outer walls of the two axial ends of the body (1); the body (1) has a first section (11) and a second section (12) along its circumference; the ends of the first section (11) and the second section (12) close to each other are provided with a locking structure (3); the ends of the first section (11) and the second section (12) are connected by the locking structure (3) to limit the movement of the first section (11) and the second section (12) in the circumferential direction of the body (1).

2. The spliced ​​and assembled annular retaining spring according to claim 1, characterized in that: The arc length L1 of the first section (11) and the arc length L2 of the second section (12) satisfy: L1≥3L2.

3. The spliced ​​and assembled annular retaining spring according to claim 2, characterized in that: The circumference C of the main body (1) and the arc length L2 of the second section (12) satisfy: 1 / 6C≤L2≤1 / 4C.

4. The spliced ​​and assembled annular retaining spring according to claim 1, characterized in that: The locking structure (3) comprises a locking piece (31) provided at one of the first section (11) and the second section (12) and a locking groove (32) provided at the other of the two sections, wherein the locking piece (31) and the locking groove (32) are plugged into each other so that the peripheral side of the locking piece (31) and the groove wall of the locking groove (32) are stop-fitted in the circumferential direction of the body (1).

5. The spliced ​​and assembled annular retaining spring according to claim 4, characterized in that: The locking piece (31) has a fixed end and a free end opposite to the fixed end, and the width of the free end is greater than the width of the fixed end.

6. The spliced ​​and assembled annular retaining spring according to claim 5, characterized in that: The width of the locking piece (31) gradually increases from the fixed end to the free end, so that the width of the free end is greater than the width of the fixed end.

7. The spliced ​​and assembled annular retaining spring according to claim 5, characterized in that: The locking piece (31) comprises a fixed section (311) and a free section (312); the width of the free section (312) is greater than the width of the fixed section (311); the end of the fixed section (311) facing away from the free section (312) forms the fixed end; and the end of the free section (312) facing away from the fixed section (311) forms the free end.

8. The spliced ​​and assembled annular retaining spring according to claim 4, characterized in that: There is a gap between the circumferential side of the locking piece (31) and the groove wall of the locking groove (32), so that the first section (11) and the second section (12) have a movement clearance in the circumferential direction of the body (1).

9. The spliced ​​and assembled annular retaining spring according to claim 4, characterized in that: The main body (1) has a clamping area (111) opposite to the convex rib (2) and a connecting area (112) located between the clamping areas (111) in its axial direction, and the locking piece (31) and the locking groove (32) are both arranged in the connecting area (112).

10. The spliced ​​and assembled annular retaining spring according to claim 1, characterized in that: The body (1) has a clamping area (111) opposite to the convex rib (2) and a connecting area (112) located between the clamping areas (111) in its axial direction, and the connecting area (112) is provided with a plurality of weight-reducing holes.

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