Large-torque load-bearing bearing
By employing a one-way rolled edge and limiting bend design on the outer ring in high torque bearings, combined with V-shaped springs and extended springs, the problem of collision between the needle rollers and the raceway is solved, achieving higher torque carrying capacity and convenient installation and maintenance.
Patent Information
- Application Number
- CN202520782879.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-24
AI Technical Summary
In the use of existing high torque bearings, the line contact between the needle rollers and the raceway can easily lead to collisions between the cage and the sides, and the thickness of the rolled edge limits its application in space-constrained situations.
It adopts an outer ring unidirectional rolled edge structure and replaces the rolled edge with a limiting bend edge. Combined with V-shaped spring sheet and extended spring sheet design, it ensures that the torque is directly applied to the needle roller, increases the contact area and achieves rapid locking.
It improves the torque carrying capacity of bearings, reduces space occupation, simplifies the installation and maintenance process, and reduces the intensity of manual labor.
Smart Images
Figure CN223854662U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field, specifically a big torque bearing. BACKGROUND
[0002] Big torque bearing is a kind of rolling bearing specially designed for bearing high torque load, is widely used in the mechanical system needing to deliver big torque, adopts special design, passes through increasing contact area and optimizing raceway shape, significantly improves the torque transmission capacity, wherein, the line contact design of cylindrical roller bearing is more suitable for heavy load than the point contact of ball bearing.
[0003] However, in practice, people have noticed that, in the use process, the line contact between the needle roller and raceway in bearing, although can bear larger torque, retainer is easy to collide with the side edge curl, and the thick edge curl cannot be used in small space, leading to unable to meet the occasion of limited installation space and big torque. UTILITY MODEL CONTENTS
[0004] The utility model discloses a big torque bearing, the structure of one-way edge curl is adopted to the outer ring, and the other side of outer ring utilizes thin limit bended edge to replace edge curl, can reduce the thickness of bearing, and the torque can also be directly acted on needle roller, increase the torque carrying capacity of the bearing.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A big torque bearing, including the outer ring, one side of outer ring is equipped with the vertical edge curl, and the other side is annular array type and is equipped with limit bended edge.
[0007] The inner side of outer ring is installed with retainer, and the inner side of retainer is respectively annular array type and is equipped with spring leaf and needle roller.
[0008] As a further technical scheme of the utility model, the retainer includes two parallelly arranged side retaining rings, and the side surface of side retaining ring is integrally provided with a spacing baffle, and the spacing baffle is annular array type and is distributed on the inner side of side retaining ring.
[0009] As a further technical scheme of the utility model, the spacing baffle is fixedly connected with a center baffle between two spacing baffles, and the needle roller is spaced apart from the spacing baffle.
[0010] As a further technical scheme of the utility model, the spring leaf includes V-shaped spring leaf, and the V-shaped spring leaf is attached to the bottom of spacing baffle, and the center baffle penetrates the inner side of V-shaped spring leaf.
[0011] As a further technical scheme of the utility model, the both sides of the V-shaped elastic sheet are integrally provided with extension elastic sheets, the extension elastic sheets are inserted between the two symmetrically arranged interval baffles, and the side of the extension elastic sheet away from the V-shaped elastic sheet is attached to the side surface of the needle roller.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] The utility model discloses, the section of outer ring is L type setting, the position of retainer is positioned through the edge curl of one side, and the other side of outer ring is replaced with the limit bent edge of annular array type setting instead of edge curl, the side space of outer ring is released at this moment, makes the torque direct action on needle roller, thereby increasing the torque of the bearing in use of this carrying shaft;
[0014] The utility model discloses, first V-shaped elastic sheet is placed between the symmetric interval baffle, and the both ends of V-shaped elastic sheet are attached to the side surface of interval baffle, and the extension elastic sheet of both sides is attached to the side surface of needle roller respectively, and the position of V-shaped elastic sheet is positioned;
[0015] The utility model discloses, needle roller is extruded to the extension elastic sheet of both sides of V-shaped elastic sheet when being normally rotated torque, thereby rotating, when needle roller loses the torque of rotation, V-shaped elastic sheet pushes the extension elastic sheet of both sides to move to both sides, thereby pushing needle roller to rotate in the inside of retainer, and the diagonal line of longer needle roller is clamped in the inside of outer ring, increases the contact area, and is locked, realizes the quick stop of bearing after losing power. ACCURACY OF DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the utility model in use state.
[0017] Figure 2 It is the partial structure schematic diagram of the utility model Figure 1 .
[0018] Figure 3 It is the position structure schematic diagram of spring sheet and needle roller in the utility model.
[0019] Figure 4 It is the position structure schematic diagram of retainer and spring sheet in the utility model.
[0020] Figure 5 It is the local enlarged schematic diagram of the utility model Figure 4 .
[0021] Figure 6 It is the three-dimensional structure schematic diagram of retainer in the utility model.
[0022] Figure 7 It is the three-dimensional structure schematic diagram of outer ring in the utility model.
[0023] Figure 8 is a partial enlarged view of the utility model Figure 7 .
[0024] In the figure:
[0025] outer ring-1, retainer-2, side check ring-21, interval baffle-22, center baffle-23, spring piece-3, V-shaped spring piece-31, extended spring piece-32, needle roller-4, limiting bent edge-5. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] Please refer to Figures 1-8 , the utility model embodiment provides a kind of big torque bearing, including outer ring 1, the side of outer ring 1 is equipped with vertical hem, and the other side is annular array and is equipped with limiting bent edge 5;
[0028] The inner side of the outer ring 1 is equipped with retainer 2, and the inner side of the retainer 2 is respectively annular array and is equipped with spring piece 3 and needle roller 4.
[0029] By adopting the above technical scheme, the cross section of outer ring 1 is L-shaped, the position of retainer 2 is positioned by the hem on one side, and the other side of outer ring 1 is replaced by annular array limiting bent edge 5 instead of hem, so that torque directly acts on needle roller 4, thereby increasing the torque when the bearing is used.
[0030] In the embodiment, the retainer 2 includes two parallelly arranged side check rings 21, and the side surface of the side check ring 21 is integrally provided with an interval baffle 22, and the interval baffle 22 is annularly arrayed on the inner side of the side check ring 21.
[0031] Further, the center baffle 23 is fixedly connected between the two interval baffles 22, and the plurality of needle rollers 4 are distributed at intervals with the interval baffles 22.
[0032] Further, the spring piece 3 includes a V-shaped spring piece 31, the V-shaped spring piece 31 is attached to the bottom of the interval baffle 22, and the center baffle 23 penetrates the inner side of the V-shaped spring piece 31.
[0033] Further, the V-shaped elastic sheet 31 is integrally provided with an extension elastic sheet 32 on both sides, the extension elastic sheet 32 is inserted between two symmetrically arranged interval baffles 22, and the extension elastic sheet 32 is attached to the side of the needle roller 4 away from the V-shaped elastic sheet 31.
[0034] By adopting the above technical scheme, when the needle roller 4 is subjected to normal rotation torque, the needle roller 4 will extrude the extension elastic sheets 32 on both sides of the V-shaped elastic sheet 31, so as to rotate, when the needle roller 4 loses the rotation torque, the V-shaped elastic sheet 31 pushes the extension elastic sheets 32 on both sides to move to both sides, so as to push the needle roller 4 to rotate on the inner side of the retainer 2, the longer diagonal line of the needle roller is clamped on the inner side of the outer ring 1, the contact area is increased, and the needle roller is locked, so that the bearing is quickly stopped after losing power.
[0035] Further, the side surface of the outer ring 1 is integrally provided with the limiting bent edge 5, the shorter limiting bent edge 5 can save the space of the side surface of the outer ring 1, increase the torque bearing capacity of the needle roller 4, and facilitate workers to disassemble and maintain.
[0036] Further, the interval baffles 22 are arranged in two groups, and the spring sheet 3 is arranged between the interval baffles 22 in each group, so that the bearing can only rotate in one direction through the cooperation between the spring sheet 3 and the needle roller 4.
[0037] The working principle of the utility model is: when in use, first, the V-shaped elastic sheet 31 is placed between the symmetrically arranged interval baffles 22, the two ends of the V-shaped elastic sheet 31 are attached to the side surface of the interval baffles 22, and the extension elastic sheets 32 on both sides are respectively attached to the side surface of the needle roller 4 on both sides, the position of the V-shaped elastic sheet 31 is positioned, the cross section of the outer ring 1 is L-shaped, the position of the retainer 2 is positioned through the edge curl on one side, and the other side of the outer ring 1 is replaced by the limiting bent edge 5 arranged in a ring array, at this time, the side surface space of the outer ring 1 is released, so that the torque directly acts on the needle roller 4, thereby increasing the torque of the bearing in use, when the needle roller 4 is subjected to normal rotation torque, the needle roller 4 will extrude the extension elastic sheets 32 on both sides of the V-shaped elastic sheet 31, so as to rotate, when the needle roller 4 is subjected to reverse torque, the V-shaped elastic sheet pushes the extension elastic sheets on both sides to move to both sides, so as to push the needle roller to rotate on the inner side of the retainer, the longer diagonal line of the needle roller is clamped on the inner side of the outer ring, the contact area is increased, and the needle roller is locked; simple structure, convenient operation, and effective reduction of labor intensity.
[0038] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
[0039] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single preferred embodiment, it being understood that this single preferred embodiment can exhibit not every aspect or feature of the present specification. The specification can also be described in terms of a generic statement that the disclosure can include one, some, or all of a list of features. It is further understood that the specification is to be considered as a whole and not with reference to a single feature or design element alone.
Claims
1. A large torque carrying bearing characterized by: Including the outer ring (1), one side of outer ring (1) is provided with vertical edge, and the other side is annular array type and is provided with limit bent edge (5); The inner side of the outer ring (1) is provided with a retainer (2), and the inner side of the retainer (2) is respectively provided with spring leaf (3) and needle roller (4) in annular array type.
2. The large torque carrying bearing of claim 1, wherein: The retainer (2) includes two parallelly arranged side retaining rings (21), and the side of the side retaining ring (21) is integrally provided with a spacing baffle (22), and the spacing baffle (22) is annularly arranged on the inner side of the side retaining ring (21).
3. The large torque carrying bearing of claim 2, wherein: The two spacing baffles (22) are fixedly connected with a center blocking rod (23), and the plurality of needle rollers (4) are distributed between the spacing baffles (22).
4. The large torque carrying bearing of claim 3, wherein: The spring leaf (3) includes a V-shaped spring leaf (31), and the V-shaped spring leaf (31) is attached to the bottom of the spacing baffle (22), and the center blocking rod (23) penetrates the inner side of the V-shaped spring leaf (31).
5. The large torque carrying bearing of claim 4, wherein: The two sides of the V-shaped spring leaf (31) are integrally provided with an extension spring leaf (32), the extension spring leaf (32) is inserted between two symmetrically arranged spacing baffles (22), and the side of the extension spring leaf (32) away from the V-shaped spring leaf (31) is attached to the side of the needle roller (4).