Gear structure of speed reducer

Abstract

The utility model relates to the field of speed reducer gear structures, and provides a speed reducer gear structure which comprises a supporting piece, a gear ring and a limiting assembly. The gear ring is provided with a plurality of gear teeth, and the gear teeth are arranged at equal intervals in the circumferential direction of the gear ring; the gear ring is arranged outside the supporting piece in a sleeving mode. The limiting assembly is used for limiting rotation of the gear ring relative to the supporting piece. The speed reducer has the advantages of being capable of being rapidly maintained after the gear of the speed reducer is abraded and low in cost.

Description

Technical Field

[0001] This application relates to the field of gear reducer structures, and more particularly to a gear reducer structure. Background Technology

[0002] As a crucial transmission device in modern industry, the performance of the gears, the core component of a speed reducer, directly impacts the equipment's operating efficiency and stability. With increasing industrial automation, speed reducers are widely used in various mechanical equipment, providing vital support for improved production efficiency. However, during long-term use, gear wear is inevitable, affecting not only transmission accuracy but also potentially leading to equipment downtime for maintenance, thus impacting production schedules. Currently, the industry typically employs two methods to address gear wear: one is to maintain and repair worn gears, restoring their surface properties through grinding, spraying, etc.; the other is to directly replace the gear assembly with a completely new one. Maintenance and repair usually require disassembly and meticulous processing of the gears, a time-consuming process that demands a high level of operator skill. While direct gear replacement can quickly restore equipment functionality, it is costly, especially for large or precision speed reducers, where frequent gear replacements significantly increase operating costs. Therefore, a gear structure that allows for rapid maintenance and is cost-effective is needed to overcome the shortcomings of existing technologies. Utility Model Content

[0003] In order to enable quick and cost-effective maintenance after gear wear in a speed reducer, this application provides a speed reducer gear structure.

[0004] The gear structure for a speed reducer provided in this application adopts the following technical solution:

[0005] A gear reducer structure includes a support member, a gear ring, and a limiting component; the gear ring has multiple teeth, which are arranged at equal intervals along the circumference of the gear ring; the gear ring is sleeved outside the support member; the limiting component is used to restrict the rotation of the gear ring relative to the support member.

[0006] By adopting the above technical solution, the gear ring and support are designed to be separate, so that only the gear ring needs to be replaced to restore the function of the reducer, and the entire gear does not need to be replaced, thus reducing maintenance costs. The setting of the limit component effectively prevents the gear ring from rotating relative to the support, ensuring stable and reliable operation of the gear structure.

[0007] Optionally, the limiting component includes a connecting ring, a limiting member, and a limiting groove; the connecting ring is sleeved outside the support member, and the toothed ring is sleeved outside the connecting ring; the connecting ring has a through cavity for the limiting member to pass through; the limiting groove is disposed inside the toothed ring, one end of the limiting groove passes through the side of the toothed ring near the connecting ring, and the limiting groove is used for the limiting member to be inserted; the side wall of the support member is used to abut against the limiting member.

[0008] By adopting the above technical solution, when assembling the gear, the gear ring is first placed outside the connecting ring, and then the limiting member is inserted into the through cavity and the limiting groove in sequence. After that, the support member is inserted into the connecting ring. The support member abuts against the other end of the limiting member, thereby using the cooperation between the limiting member, the connecting ring and the gear ring to restrict the rotation and axial movement of the gear ring relative to the support member, thus ensuring the stability and reliability of the reducer gear structure.

[0009] Optionally, the limiting member has an arc-shaped transition at the edge of its end face near the support member.

[0010] By adopting the above technical solutions, the risk of wear or damage caused by stress concentration during relative assembly or operation is reduced, thereby increasing the service life of the components. It also helps the limiting component to assemble more smoothly with the supporting component, improving assembly efficiency.

[0011] Optionally, multiple limiting members are provided, and the multiple limiting members are arranged at intervals around the central axis of the support member; correspondingly, multiple limiting grooves are provided.

[0012] By adopting the above technical solution, multiple limiting components are arranged at intervals around the central axis of the support component, which can evenly distribute the limiting force between the gear ring and the support component, avoid damage to a single limiting component due to uneven force, and thus improve the stability and reliability of the structure.

[0013] Optionally, the connecting ring has an insertion groove on its surface near the support member, and the insertion groove extends along the axial direction of the connecting ring; the side wall of the support member has an insertion protrusion, and the insertion groove is used for the insertion protrusion to be inserted.

[0014] By adopting the above technical solution, the connecting ring and the support are circumferentially positioned through the cooperation of the insertion groove and the insertion protrusion, which effectively prevents the connecting ring from rotating relative to the support.

[0015] Optionally, the limiting member has a receiving cavity at its end near the support member, and the receiving cavity extends along the length direction of the limiting member; a ball and a spring are provided in the receiving cavity, one end of the spring abuts against the ball and the other end abuts against the bottom of the receiving cavity; the ball abuts against the opening of the receiving cavity; an abutting groove is provided on the outer wall of the support member, and the groove wall of the abutting groove is used for the ball to abut against.

[0016] By adopting the above technical solution, the axial positioning between the support and the connecting ring is linearly limited by the cooperation of the ball bearing and the limiting groove, thereby further improving the connection stability between the support and the connecting ring and reducing the risk of the support and the connecting ring falling off each other during gear operation.

[0017] Optionally, the edge of the abutment groove has a rounded transition.

[0018] By adopting the above technical solution, the arc transition design helps the balls enter and be positioned more smoothly in the abutment groove, improving assembly efficiency.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. By separating the gear ring from the support and using a limiting component to restrict the rotation of the gear ring relative to the support, quick disassembly and assembly of the gear are achieved, significantly shortening maintenance time and meeting the need for rapid equipment restart. At the same time, it eliminates the need to replace the entire gear, reducing maintenance costs.

[0021] 2. The limiting component includes a connecting ring and a limiting member. The limiting member is inserted into the connecting ring and the gear ring to form a circumferential limit on the gear ring and prevent the gear ring from rotating relative to the connecting ring.

[0022] 3. By providing elastically retractable balls at the end of the limiting member that abuts against the support member, and providing abutment grooves on the side wall of the support member for the balls to abut against, axial limiting is formed between the support member and the connecting ring, reducing the risk of the support member and the connecting ring separating from each other during the operation of the reducer. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Support member; 11. Insertion protrusion; 12. Abutment groove; 2. Gear ring; 21. Gear tooth; 3. Limiting component; 31. Connecting ring; 311. Through cavity; 312. Insertion groove; 32. Limiting member; 321. Receiving cavity; 322. Ball bearing; 323. Spring; 33. Limiting groove body. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1This application will be described in further detail.

[0026] This application discloses a gear structure for a speed reducer. (Refer to...) Figure 1 A gear reducer structure includes a support member 1, a gear ring 2, and a limiting component 3. The gear ring 2 has multiple teeth 21, which are arranged at equal intervals along the circumference of the gear ring 2. The gear ring 2 is fitted over the support member 1, and the limiting component 3 is used to restrict the rotation of the gear ring 2 relative to the support member 1. This allows for quick assembly, disassembly, and positioning of the gear ring 2, achieving the effects of rapid maintenance and reduced economic costs.

[0027] Specifically, support component 1 can adopt a cylindrical structure, and its material can be high-strength steel or aluminum alloy to ensure support strength while reducing overall weight. The gear ring 2 can be made of wear-resistant alloy steel or carburized steel to improve its service life.

[0028] The connection between the gear ring 2 and the support 1 can be achieved through mechanical fit or interference fit to ensure that it will not loosen during operation.

[0029] In this embodiment, the limiting component 3 includes a connecting ring 31, a limiting member 32, and a limiting groove 33. The connecting ring 31 is sleeved outside the support member 1, and the toothed ring 2 is then sleeved outside the connecting ring 31. The connecting ring 31 has a through cavity 311 for the limiting member 32 to pass through. The limiting groove 33 is disposed inside the toothed ring 2, and one end of it passes through the side of the toothed ring 2 near the connecting ring 31, for the limiting member 32 to be inserted into. The side wall of the support member 1 abuts against the limiting member 32. The shapes of the connecting ring 31 and the limiting groove 33 can be designed according to actual needs, such as circular, square, or other polygonal shapes, to adapt to the requirements of different working conditions.

[0030] The limiting member 32 has an arc-shaped transition at the edge of its end face near the support member 1 to reduce friction, making it easier for the limiting member 32 to be inserted into or pulled out of the limiting groove 33, thereby improving the efficiency of disassembly and assembly.

[0031] In this embodiment, multiple limiting members 32 are provided, and these multiple limiting members 32 are arranged at intervals around the central axis of the support member 1. Correspondingly, multiple limiting grooves 33 are also provided. This increases the stress stability of the limiting assembly 3.

[0032] Furthermore, a insertion groove 312 is provided on the surface of the connecting ring 31 near the support member 1, and the insertion groove 312 extends axially along the connecting ring 31. An insertion protrusion 11 is provided on the side wall of the support member 1, and the insertion groove 312 is used for inserting the insertion protrusion 11. Thus, the cooperation between the insertion groove 312 and the insertion protrusion 11 further enhances the positioning effect between the connecting ring 31 and the support member 1, preventing relative slippage between them during operation.

[0033] To further improve the connection reliability between the support member 1 and the gear ring 2, a receiving cavity 321 is provided at the end of the limiting member 32 near the support member 1, and the receiving cavity 321 extends along the length direction of the limiting member 32. A ball bearing 322 and a spring 323 are provided in the receiving cavity 321. One end of the spring 323 abuts against the ball bearing 322, and the other end abuts against the bottom of the receiving cavity 321. The ball bearing 322 abuts against the opening of the receiving cavity 321. An abutting groove 12 is provided on the outer wall of the support member 1, and the groove wall of the abutting groove 12 is used for the ball bearing 322 to abut against. When the side wall of the support member 1 abuts against the inner wall of the connecting ring 31, the ball bearing 322 abuts against the groove wall of the abutting groove 12. That is, by utilizing the elastic action of the ball bearing 322 and the spring 323, the limiting member 32 can automatically lock when inserted into the limiting groove 33, forming a certain limit between the support member 1 and the connecting ring 31 in the axial direction of the support member 1.

[0034] The edge of the abutment groove 12 is rounded to reduce the friction between the ball 322 and the abutment groove 12, extend the service life of the ball 322 and the abutment groove 12, and facilitate assembly and disassembly.

[0035] The implementation principle of a reducer gear structure in this application embodiment is as follows: When assembling the gear, the gear ring 2 is first sleeved outside the connecting ring 31, and then the limiting member 32 is inserted into the through cavity 311 and the limiting groove 33 in sequence; then the insertion protrusion 11 of the support member 1 is aligned with the insertion groove 312 of the connecting ring 31, and the support member 1 is inserted into the connecting ring 31, so that the support member 1 abuts against the other end of the limiting member 32; during the insertion process, the spring 323 is first pressed into the receiving cavity 321, and then when the ball 322 reaches the abutment groove 12, the ball 322 is pushed into the abutment groove 12, thus limiting the support member 1.

[0036] When repairing the gear, first knock the support 1 out of the connecting ring 31, then pull the limiting part 32 out of the limiting groove 33 and the limiting cavity, and replace it with a new gear ring 2.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gear structure for a speed reducer, characterized in that: The device includes a support member (1), a gear ring (2), and a limiting component (3); the gear ring (2) has multiple teeth (21) arranged at equal intervals along the circumference of the gear ring (2); the gear ring (2) is fitted over the support member (1); the limiting component (3) is used to restrict the rotation of the gear ring (2) relative to the support member (1); the limiting component (3) includes a connecting ring (31), a limiting member (32), and a limiting groove (33); the connecting ring (31) is fitted over the support member (1). Outside of the support member (1), the toothed ring (2) is fitted outside the connecting ring (31); the connecting ring (31) has a through cavity (311) for the limiting member (32) to pass through; the limiting groove (33) is disposed inside the toothed ring (2), one end of the limiting groove (33) passes through the side of the toothed ring (2) near the connecting ring (31), and the limiting groove (33) is used for the limiting member (32) to be inserted; the side wall of the support member (1) is used to abut against the limiting member (32).

2. The gear structure of a speed reducer according to claim 1, characterized in that: The limiting member (32) has an arc-shaped transition at the edge of the end face near the support member (1).

3. The gear structure of a speed reducer according to claim 1, characterized in that: Multiple limiting members (32) are provided, and the multiple limiting members (32) are arranged at intervals around the central axis of the support member (1); multiple limiting grooves (33) are provided accordingly.

4. The gear structure of a speed reducer according to claim 1, characterized in that: The connecting ring (31) has a insertion groove (312) on its surface near the support member (1), and the insertion groove (312) extends along the axial direction of the connecting ring (31); the side wall of the support member (1) is provided with an insertion protrusion (11), and the insertion groove (312) is used for the insertion protrusion (11) to be inserted.

5. A reducer gear structure according to claim 4, characterized in that: The limiting member (32) has a receiving cavity (321) at the end near the support member (1), and the receiving cavity (321) extends along the length direction of the limiting member (32). A ball (322) and a spring (323) are provided in the receiving cavity (321). One end of the spring (323) abuts against the ball (322), and the other end abuts against the bottom of the receiving cavity (321). The ball (322) abuts against the opening of the receiving cavity (321). The outer wall of the support member (1) has an abutting groove (12), and the groove wall of the abutting groove (12) is used for the ball (322) to abut.

6. The gear structure of a speed reducer according to claim 5, characterized in that: The edge of the abutment groove (12) is rounded.

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