Flexible bearing for speed reducer

Abstract

The flexible bearing comprises an outer ring and a lower ring, a first cambered surface is arranged on the outer side of the lower ring, a sliding groove is formed in the inner wall of the circumference of the outer ring, a plurality of balls are movably connected between the sliding groove and the first cambered surface, a limiting clamping ring is arranged between the outer ring and the lower ring, and the limiting clamping ring is arranged between the outer ring and the lower ring. A plurality of avoiding grooves are formed in the limiting clamping ring, the balls are located in the avoiding grooves, an upper ring is installed on the top of the lower ring through a longitudinal positioning assembly and a transverse positioning assembly, screws are connected to the two sides of the upper ring in an inserted mode, threaded openings are formed in the two sides of the lower ring, and the screws are in threaded connection with the corresponding threaded openings. According to the utility model, not only can the ball be conveniently and quickly mounted by a worker, the time for mounting the bearing is saved, but also the upper ring and the lower ring can be conveniently positioned and mounted by the worker through the matched use of the longitudinal positioning assembly and the transverse positioning assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a flexible bearing for a reducer. Background Art

[0002] Flexible bearings can reduce the movement impact of the reducer and achieve high-precision transmission effects through controllable elastic deformation. Flexible bearings need to be installed with balls during the manufacturing process.

[0003] The existing flexible bearings are difficult to install due to the small installation gap between the inner and outer rings of the bearings. This results in a long time spent on installing a bearing and leads to low efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a flexible bearing for a reducer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A flexible bearing for a reducer comprises an outer ring and a lower ring, wherein the outer side of the lower ring is provided with a first arc surface, the circumferential inner wall of the outer ring is provided with a slide groove, a plurality of balls are movably connected between the slide groove and the first arc surface, a limiting snap ring is provided between the outer ring and the lower ring, a plurality of avoidance grooves are provided inside the limiting snap ring, and the balls are located inside the avoidance grooves, an upper ring is installed on the top of the lower ring through a longitudinal positioning assembly and a transverse positioning assembly, screws are inserted on both sides of the upper ring, threaded openings are provided on both sides of the lower ring, and the screws are threadedly connected to their corresponding threaded openings.

[0007] As a further solution of the present invention, the longitudinal positioning assembly includes multiple first limit grooves, which are opened on the circumferential inner wall of the lower ring. The circumferential outer wall of the bottom of the upper ring is fixedly connected with multiple limit blocks, and the limit blocks are slidably connected to their corresponding first limit grooves.

[0008] As a further solution of the present invention, the lateral positioning assembly includes a second limiting groove, which is opened on the circumferential inner wall of the lower ring. The outer wall of the bottom of the upper ring is fixedly connected with a positioning ring, and the second limiting groove is clamped with the positioning ring.

[0009] As a further solution of the present invention, the first limiting groove is connected to the second limiting groove.

[0010] As a further solution of the present invention, a second arc surface is provided on the outer side of the upper ring, and the balls are in contact with the second arc surface.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model facilitates the staff to quickly install the ball, saves the time spent on installing the bearing, and improves the assembly efficiency of the device.

[0013] 2. In the present invention, the longitudinal positioning assembly and the transverse positioning assembly are used in conjunction with each other, which makes it convenient for workers to position and install the upper ring and the lower ring. At the same time, the cooperation between the limit block and the first limit groove limits the height of the docking between the upper ring and the lower ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective structural diagram of a flexible bearing for a reducer proposed by the present invention;

[0015] Figure 2 This is an exploded structural diagram of a flexible bearing for a reducer proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the partially disassembled structure of a flexible bearing for a reducer proposed by the utility model.

[0017] In the figure: 1. Outer ring; 2. Limiting snap ring; 3. Upper ring; 4. Avoidance groove; 5. Ball; 6. Slide groove; 7. Positioning ring; 8. Limit block; 9. First limiting groove; 10. Second limiting groove; 11. Threaded mouth; 12. Lower ring; 13. First arc surface; 14. Screw; 15. Second arc surface. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the present invention.

[0019] Reference Figure 1-Figure 3A flexible bearing for a reducer includes an outer ring 1 and a lower ring 12. The outer side of the lower ring 12 is provided with a first arc surface 13, and the inner circumferential wall of the outer ring 1 is provided with a slide groove 6. A plurality of balls 5 are slidably connected between the slide groove 6 and the first arc surface 13. A limiting snap ring 2 is provided between the outer ring 1 and the lower ring 12. A plurality of avoidance grooves 4 are provided inside the limiting snap ring 2, and the balls 5 are located inside the avoidance grooves 4. An upper ring 3 is installed on the top of the lower ring 12 through a longitudinal positioning component and a transverse positioning component. First, the outer ring 1 is placed on the workbench, and then the lower ring 12 is placed inside the outer ring 1, so that a gap of the size of accommodating the balls 5 is left between the lower ring 12 and the outer ring 1, and then the plurality of balls 5 are respectively Place it between the slide groove 6 on the outer ring 1 and the first arc surface 13 on the lower ring 12, then put the limit snap ring 2 into the top of the gap between the outer ring 1 and the lower ring 12, and make the ball 5 located inside the avoidance groove 4, then install the upper ring 3 towards the top of the lower ring 12, so that the upper ring 3 and the lower ring 12 are docked, at this time the screw 14 is docked with the threaded mouth 11, screws 14 are inserted on both sides of the upper ring 3, threaded mouths 11 are opened on both sides of the lower ring 12, and the screws 14 are threadedly connected to their corresponding threaded mouths 11, turn the screw 14 to insert it into the threaded mouth 11, and then complete the assembly of the bearing, a second arc surface 15 is opened on the outside of the upper ring 3, and the ball 5 is in contact with the second arc surface 15.

[0020] In the present invention, it should be noted that the longitudinal positioning assembly includes a plurality of first limiting grooves 9, which are opened on the circumferential inner wall of the lower ring 12, and a plurality of limiting blocks 8 are welded on the circumferential outer wall of the bottom of the upper ring 3, and the limiting blocks 8 are slidably connected to their corresponding first limiting grooves 9. By cooperating with the limiting blocks 8 and the first limiting grooves 9, the height of the upper ring 3 and the lower ring 12 docking is limited. The transverse positioning assembly includes a second limiting groove 10, which is opened on the circumferential inner wall of the lower ring 12, and a positioning ring 7 is welded on the outer wall of the bottom of the upper ring 3. When the upper ring 3 and the lower ring 12 are docked, the limiting blocks 8 move downward along the first limiting grooves 9 until the positioning ring 7 is snapped into the second limiting grooves 10, and the second limiting grooves 10 are snapped with the positioning ring 7. By cooperating with the longitudinal positioning assembly and the transverse positioning assembly, it is convenient for the staff to position and install the upper ring 3 and the lower ring 12, and the first limiting grooves 9 are connected to the second limiting grooves 10.

[0021] The utility model discloses working principle: when need to assemble bearing, first, place outer ring 1 to the workbench, then place lower ring 12 to the inside of outer ring 1, make the clearance of lower ring 12 and outer ring 1 accommodate the size of ball 5, then place multiple ball 5 respectively between the sliding slot 6 on outer ring 1 and the first camber surface 13 on lower ring 12, then put the spacing snap ring 2 from the top between the clearance of outer ring 1 and lower ring 12, and make ball 5 locate the inside of spacing slot 4, then install upper ring 3 towards the top of lower ring 12, make upper ring 3 and lower ring 12 butt joint, now spacing block 8 moves downward along the first spacing slot 9, until positioning ring 7 is inserted into the second spacing slot 10, now screw 14 and silk mouth 11 butt joint, rotate screw 14, make it insert into silk mouth 11, and then complete the assembly of bearing.

[0022] In addition, the terms "mounting", "setting", "connecting", "sleeving" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

Claims

1. A flexible bearing for a reducer, comprising an outer ring (1) and a lower ring (12), characterized in that: The outer side of the lower ring (12) is provided with a first arc surface (13), the inner circumferential wall of the outer ring (1) is provided with a slide groove (6), and a plurality of balls (5) are movably connected between the slide groove (6) and the first arc surface (13). A limiting snap ring (2) is provided between the outer ring (1) and the lower ring (12), and a plurality of avoidance grooves (4) are provided inside the limiting snap ring (2), and the balls (5) are located inside the avoidance grooves (4). The top of the lower ring (12) is installed with an upper ring (3) through a longitudinal positioning component and a transverse positioning component, and screws (14) are inserted on both sides of the upper ring (3). Threaded openings (11) are provided on both sides of the lower ring (12), and the screws (14) are threadedly connected to the corresponding threaded openings (11).

2. A flexible bearing for a reducer according to claim 1, characterized in that: The longitudinal positioning assembly includes a plurality of first limiting grooves (9), which are arranged on the circumferential inner wall of the lower ring (12); a plurality of limiting blocks (8) are fixedly connected to the circumferential outer wall of the bottom of the upper ring (3), and the limiting blocks (8) are slidably connected to the corresponding first limiting grooves (9).

3. The flexible bearing for a reducer according to claim 2, characterized in that: The transverse positioning assembly includes a second limiting groove (10), which is opened on the circumferential inner wall of the lower ring (12). The outer wall of the bottom of the upper ring (3) is fixedly connected with a positioning ring (7), and the second limiting groove (10) is clamped with the positioning ring (7).

4. The flexible bearing for a reducer according to claim 3, characterized in that: The first limiting groove (9) is communicated with the second limiting groove (10).

5. The flexible bearing for a reducer according to claim 1, characterized in that: A second arc surface (15) is provided on the outer side of the upper ring (3), and the ball (5) is in contact with the second arc surface (15).

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