Planetary reducer with reverse clearance adaptive adjustment function
By designing an adaptive adjustment mechanism in a planet reducer, moving the mating seat and planet wheel, and adjusting the position of the planet wheel, the problem of inability to eliminate reverse gaps in the prior art is solved, processing quality and production efficiency are improved, and positioning accuracy and repetition of movement are ensured.
Patent Information
- Application Number
- CN202421715805.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The reverse gap cannot be eliminated in the prior art, resulting in inaccurate positioning and inconsistent return position, reducing the repetition of movement, affecting product processing quality and production efficiency, and leading to unstable and unreliable operation.
A planetary reducer with reverse gap adaptation and adjustment is designed, and the adaptation adjustment mechanism is adopted, including six sets of limit seats, two sets of ring seats, bolts, threaded seats, mating seats, limit holes, limit slots and limit blocks. By moving the mating seats and planet wheels, the position of the planet wheels is adjusted to eliminate reverse gaps.
By eliminating the reverse gap, the processing quality and production efficiency are improved, positioning accuracy and motion repeatability are ensured, and the problems of unstable and unreliable operation are avoided.
Smart Images
Figure CN222823711U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of planetary reducers, in particular to a planetary reducer with reverse clearance adaptation and adjustment. Background Art
[0002] Planetary reducers are widely used industrial products that can reduce the speed of motors while increasing output torque. Planetary reducers can be used as supporting components in industries such as lifting, excavation, transportation, and construction.
[0003] Reverse clearance, also known as return clearance or backlash, refers to the small angular displacement of the reducer input end when the output end of the reducer is fixed and the input end rotates clockwise and counterclockwise to produce ±2% of the rated torque at the output end. Planetary reducers are used in high-precision motion control equipment. The existence of reverse clearance will affect the positioning accuracy and repeatability of high-precision motion equipment, and thus affect the processing accuracy of the product. Therefore, some high-precision motion equipment is required to have a reverse clearance compensation function to automatically compensate for some regular errors during the processing process and improve the accuracy of processed parts.
[0004] However, in the prior art, in scenarios requiring high-precision motion control, the inability to eliminate reverse clearance will lead to inaccurate positioning and inconsistent return positions for each movement, which reduces the repeatability of the motion. This not only affects the processing quality and production efficiency of the product, but also leads to unstable and unreliable operation. Therefore, a planetary reducer with reverse clearance adaptation and adjustment is proposed. Utility Model Content
[0005] The purpose of the utility model is to solve the problems existing in the prior art that the reverse clearance cannot be eliminated, resulting in inaccurate positioning and inconsistent return positions for each movement, which reduces the repeatability of the movement, not only affecting the processing quality and production efficiency of the product, but also causing unstable and unreliable operation, and a planetary reducer with reverse clearance adaptation adjustment is proposed.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a planetary reducer with reverse clearance adaptation and adjustment, comprising a planetary reducer body, an adaptation and adjustment mechanism is arranged inside the planetary reducer body, the planetary reducer body comprises a housing, a gear ring and a planet carrier, and three planetary gears are arranged inside the planet carrier;
[0007] The adaption and adjustment mechanism includes six groups of limit seats and two groups of annular seats. Bolts are rotatably installed inside the six groups of limit seats. The outer walls of the six groups of bolts are threadedly connected with threaded seats. Three groups of limit holes are opened at both ends of the planetary frame. Matching seats are slidably installed inside the six groups of limit holes.
[0008] Preferably, one end of the six groups of limit seats are respectively fixed to the outer walls of the outer shell and the ring gear, one end of the two groups of circular ring seats are respectively fixed to the two ends of the planetary frame, one end of the six groups of bolts respectively penetrates the outer shell, the ring gear and one end of the six groups of threaded seats, and are respectively rotatably installed inside the three protrusions on the outer walls of the two groups of circular ring seats.
[0009] Preferably, one end of the six groups of matching seats are respectively in contact with two ends of the planet carrier, and one end of the six groups of matching seats are respectively fixed to one end of the six groups of threaded seats.
[0010] Preferably, the protrusions at both ends of the three planetary wheels are respectively arranged inside the six groups of limiting holes, and are respectively rotatably installed inside the six groups of matching seats, and the three planetary wheels are all meshed with the rotating gears inside the planetary frame.
[0011] Preferably, limiting grooves are provided on both inner walls of the six groups of limiting holes, limiting blocks are slidably installed inside several groups of limiting grooves, and one end of several groups of limiting blocks are respectively fixed to the two ends of the six groups of matching seats.
[0012] Preferably, the outer walls of the housing and the gear ring are provided with fixing components, an output shaft is rotatably installed through one end of the gear ring, and the gear ring is located on one side of the housing.
[0013] Preferably, an input shaft is rotatably installed through one end of the housing, a plurality of fixing seats in the fixing assembly are respectively fixed to the outer walls of the housing and the gear ring, and the outer wall of the planet carrier is fixed to the inner wall of the gear ring.
[0014] Compared with the prior art, the advantages and positive effects of the utility model are:
[0015] 1. In the utility model, by providing an adapting and adjusting mechanism, the six groups of matching seats can be moved, and the three planetary gears can be driven to move inside the planetary carrier, so that the staff can adjust the positions of the three planetary gears according to actual needs, eliminate the reverse clearance, prevent inaccurate positioning, improve the processing quality and production efficiency, and prevent unstable and unreliable operation.
[0016] 2. In the utility model, with the cooperation of several groups of limit blocks and several groups of limit grooves, when the six groups of matching seats move, the six groups of matching seats will drive the two groups of limit blocks fixed thereto to move together, so that the several groups of limit blocks slide inside the several groups of limit grooves respectively, which can have a limiting effect on the six groups of matching seats, and can make the six groups of matching seats move stably inside the six groups of limit holes respectively, thereby increasing the stability of the adaptation and adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1A partial half-section structural schematic diagram of a planetary reducer with reverse clearance adaptation and adjustment is proposed for the utility model;
[0018] Figure 2 The utility model provides a schematic structural diagram of a planet carrier and an adaption adjustment mechanism in a planetary reducer with reverse clearance adaption adjustment;
[0019] Figure 3 A partial stereoscopic diagram of an adapting and adjusting mechanism in a planetary reducer with reverse clearance adapting and adjusting is provided in the utility model;
[0020] Figure 4 The utility model provides a three-dimensional diagram of a planetary reducer with reverse clearance adaptation and adjustment.
[0021] Legend: 1. Planetary reducer body; 10. Fixing assembly; 11. Housing; 12. Ring gear; 13. Output shaft; 14. Input shaft; 15. Planet carrier; 16. Planet gear; 2. Adaptation and adjustment mechanism; 21. Limit seat; 22. Ring seat; 23. Threaded seat; 24. Bolt; 25. Limit hole; 26. Limit groove; 27. Limit block; 28. Matching seat. DETAILED DESCRIPTION
[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0024] Embodiment 1: Figure 1 - Figure 4 As shown, the utility model provides a planetary reducer with reverse clearance adaptation and adjustment, including a planetary reducer body 1, an adaptation and adjustment mechanism 2 is arranged inside the planetary reducer body 1, the planetary reducer body 1 includes a housing 11, a gear ring 12 and a planet carrier 15, and three planetary gears 16 are arranged inside the planet carrier 15;
[0025] The adapting and adjusting mechanism 2 includes six groups of limit seats 21 and two groups of circular ring seats 22. Bolts 24 are rotatably installed inside the six groups of limit seats 21. The outer walls of the six groups of bolts 24 are all threadedly connected with threaded seats 23. Three groups of limit holes 25 are penetrated at both ends of the planet carrier 15. Matching seats 28 are slidably installed inside the six groups of limit holes 25. One end of the six groups of limit seats 21 is respectively fixed to the outer wall of the housing 11 and the ring gear 12, one end of the two groups of circular ring seats 22 is respectively fixed to the two ends of the planet carrier 15, one end of the six groups of bolts 24 respectively penetrates the housing 11, the ring gear 12 and one end of the six groups of threaded seats 23, and is rotatably installed on the two groups of circular ring seats 12. Inside the three protrusions on the outer wall of the ring seat 22, one end of the six groups of matching seats 28 are respectively in contact with the two ends of the planetary carrier 15, and one end of the six groups of matching seats 28 are respectively fixed to one end of the six groups of threaded seats 23. The protrusions at both ends of the three planetary gears 16 are respectively arranged inside the six groups of limiting holes 25, and are respectively rotatably installed inside the six groups of matching seats 28. The three planetary gears 16 are all meshed with the rotating gears inside the planetary carrier 15. The two inner walls of the six groups of limiting holes 25 are provided with limiting grooves 26, and limiting blocks 27 are slidably installed inside several groups of limiting grooves 26. One end of several groups of limiting blocks 27 is respectively fixed to the two ends of the six groups of matching seats 28.
[0026] The specific settings and functions of this embodiment are described in detail below. By screwing three groups of bolts 24 one by one, and two bolts 24 form a group, after one of the bolts 24 moves a certain distance, it is necessary to operate the other bolt 24 so that the two bolts 24 in this group can be kept consistent. When the bolt 24 is screwed and rotated, the bolt 24 will rotate inside the limiting seat 21 that cooperates with it. Since the bolt 24 is threadedly matched with the threaded seat 23, and the matching seat 28 is limited inside the limiting hole 25, the threaded seat 23 can only move threadedly on the outer wall of the bolt 24, and the threaded seat 23 will drive the matching seat 28 at the lower end when moving. After one set of bolts 24 is moved, the two matching seats 28 can drive the planetary gear 16 to move, so that the planetary gear 16 is displaced a little bit inside the planetary frame 15, and then the above steps are repeated to operate the other two sets of bolts 24, and then the six sets of matching seats 28 can be moved, which can drive the three planetary gears 16 to move inside the planetary frame 15, so that the staff can adjust the positions of the three planetary gears 16 according to actual needs, eliminate the reverse clearance, prevent inaccurate positioning, improve the processing quality and production efficiency, and prevent unstable and unreliable operation;
[0027] With the cooperation of several groups of limit blocks 27 and several groups of limit grooves 26, when the six groups of matching seats 28 move, the six groups of matching seats 28 will drive the two groups of limit blocks 27 fixed thereto to move together, so that the several groups of limit blocks 27 slide inside the several groups of limit grooves 26 respectively, which can have a limiting effect on the six groups of matching seats 28, and can make the six groups of matching seats 28 move stably inside the six groups of limit holes 25 respectively, thereby increasing the stability of the adaptation and adjustment mechanism 2.
[0028] Embodiment 2: Figure 1 and Figure 4 As shown, the planetary reducer body 1 includes a housing 11, a ring gear 12 and a planet carrier 15, three planetary gears 16 are arranged inside the planet carrier 15, and the outer walls of the housing 11 and the ring gear 12 are provided with a fixing assembly 10, an output shaft 13 is rotatably installed through one end of the ring gear 12, and an input shaft 14 is rotatably installed through one end of the housing 11, and several fixing seats in the fixing assembly 10 are respectively fixed to the outer walls of the housing 11 and the ring gear 12, the outer wall of the planet carrier 15 is fixed to the inner wall of the ring gear 12, and the ring gear 12 is located on one side of the housing 11.
[0029] The effect achieved by the entire embodiment is that the setting of the fixing component 10 can assemble the outer shell 11 and the ring gear 12 and increase the firmness between the outer shell 11 and the ring gear 12. When the input shaft 14 rotates, the input shaft 14 drives the three planetary gears 16 to rotate through the rotating gears in the planetary carrier 15, so that the three groups of planetary gears 16 rotate inside the planetary carrier 15. At the same time, the rotating gears in the planetary carrier 15 will drive the output shaft 13 to rotate, which can provide power for external equipment.
[0030] The method of use and working principle of the device are as follows: First, the position of the planetary gear 16 is adjusted according to actual needs, by screwing three groups of bolts 24 one by one, and two bolts 24 form a group. After one of the bolts 24 is displaced a certain distance, it is necessary to operate the other bolt 24 so that the two bolts 24 in this group can be kept consistent. When the bolt 24 is turned, the bolt 24 will rotate inside the matching limit seat 21. Since the bolt 24 is threadedly matched with the threaded seat 23, and the matching seat 28 is limited inside the limiting hole 25, the threaded seat 23 can only be moved in the The threads on the outer wall of the bolt 24 move, and the threaded seat 23 will drive the matching seat 28 at the lower end to move when moving. After one group of bolts 24 is moved, the two matching seats 28 can drive the planetary gear 16 to move, so that the planetary gear 16 is displaced a little bit inside the planetary carrier 15, and then repeat the above steps to operate the other two groups of bolts 24, and then the six groups of matching seats 28 can be moved, which can drive the three planetary gears 16 to move inside the planetary carrier 15, which can facilitate the staff to adjust the positions of the three planetary gears 16 and eliminate the reverse clearance.
[0031] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A planetary reducer with reverse clearance adaptation and adjustment, comprising a planetary reducer body (1), characterized in that: An adaption adjustment mechanism (2) is arranged inside the planetary reducer body (1), the planetary reducer body (1) comprises a housing (11), a gear ring (12) and a planet carrier (15), and three planetary gears (16) are arranged inside the planet carrier (15); The adapting and adjusting mechanism (2) comprises six groups of limit seats (21) and two groups of annular seats (22), the six groups of limit seats (21) are internally rotatably mounted with bolts (24), the outer walls of the six groups of bolts (24) are all threadedly connected with threaded seats (23), three groups of limit holes (25) are penetrated at both ends of the planet carrier (15), and matching seats (28) are slidably mounted inside the six groups of limit holes (25).
2. A planetary reducer with reverse clearance adaptation adjustment according to claim 1, characterized in that: One end of the six groups of limit seats (21) is respectively fixed to the outer wall of the housing (11) and the gear ring (12), one end of the two groups of circular ring seats (22) is respectively fixed to the two ends of the planet carrier (15), one end of the six groups of bolts (24) respectively penetrates the housing (11), the gear ring (12) and one end of the six groups of threaded seats (23), and is rotatably mounted inside the three protrusions of the outer wall of the two groups of circular ring seats (22).
3. A planetary reducer with reverse clearance adaptation adjustment according to claim 2, characterized in that: One end of the six groups of matching seats (28) are respectively in contact with two ends of the planet carrier (15), and one end of the six groups of matching seats (28) are respectively fixed to one end of the six groups of threaded seats (23).
4. A planetary reducer with reverse clearance adaptation adjustment according to claim 3, characterized in that: The protruding portions at both ends of the three planetary wheels (16) are respectively arranged inside the six groups of limiting holes (25), and are respectively rotatably mounted inside the six groups of matching seats (28), and the three planetary wheels (16) are all meshed with the rotating gears inside the planetary frame (15).
5. A planetary reducer with reverse clearance adaptation adjustment according to claim 4, characterized in that: The two inner walls of the six groups of limit holes (25) are provided with limit grooves (26), and the inner parts of the limit grooves (26) of several groups are all slidably mounted with limit blocks (27), and one end of the limit blocks (27) of several groups are respectively fixed to the two ends of the six groups of matching seats (28).
6. A planetary reducer with reverse clearance adaptation adjustment according to claim 1, characterized in that: The outer walls of the housing (11) and the gear ring (12) are provided with a fixing assembly (10), one end of the gear ring (12) is penetrated by an output shaft (13) rotatably mounted thereon, and the gear ring (12) is located on one side of the housing (11).
7. A planetary reducer with reverse clearance adaptation adjustment according to claim 6, characterized in that: An input shaft (14) is rotatably mounted through one end of the housing (11), a plurality of fixing seats in the fixing assembly (10) are respectively fixed to the outer walls of the housing (11) and the ring gear (12), and the outer wall of the planet carrier (15) is fixed to the inner wall of the ring gear (12).