A quick-disassembly planetary gear reducer

By introducing a disassembly mechanism and positioning components into the planetary gear reducer, the problems of inconvenient disassembly and bolt loss in the prior art are solved, achieving the effect of rapid disassembly and stable connection.

CN224515871UActive Publication Date: 2026-07-17BEIJING YONGHUA CONTROLOGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING YONGHUA CONTROLOGY TECH CO LTD
Filing Date
2025-10-27
Publication Date
2026-07-17

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Abstract

This utility model relates to the technical field of planetary gear reducers and discloses a planetary gear reducer with quick disassembly. It includes a housing, an end cover at the left end of the housing, and a disassembly mechanism on the outer wall of the housing. The disassembly mechanism includes a threaded sleeve and a first mating ring. A rotating ring is threadedly connected to the outer wall of the threaded sleeve. A sliding groove is formed on the left wall of the rotating ring, and a slider is slidably connected to the inner wall of the groove. A hinge seat is fixedly connected to the left wall of the slider, and a latch is hinged to the outer wall of the hinge seat via a pin. When the end cover needs to be disassembled, the operator can rotate the rotating ring by pushing a handle, causing the rotating ring to move closer to the end cover. At this time, the latch moves accordingly, causing its insert to disengage from the positioning seat. Then, the latch is flipped over, and the end cover loses its restraint and can be directly removed from the housing, allowing for quick disassembly of the reducer's end cover.
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Description

Technical Field

[0001] This utility model relates to the field of planetary gear reducer technology, and in particular to a planetary gear reducer that can be quickly disassembled. Background Technology

[0002] Planetary gear reducers are a type of speed reducer commonly used in industrial equipment. They utilize the principle of planetary gear transmission, achieving speed reduction and torque increase through a combination of internal planetary gears, sun gears, and ring gears. Planetary gear reducers have advantages such as small size, light weight, high torque, high precision, and long service life, and are widely used in machine tools, automation equipment, printing machinery, packaging machinery, and other industrial machinery.

[0003] Existing planetary gear reducers typically consist of a housing, end covers, and planetary gears, sun gears, ring gears, and an output shaft housed inside the housing. The housing and end covers are usually connected by multiple bolts.

[0004] However, after long-term operation, the internal components of the planetary gear reducer are prone to problems, requiring disassembly for maintenance and replacement. The housing and end cover are fixed by multiple bolts, which makes disassembly and assembly cumbersome and affects the efficiency of later maintenance. Moreover, the disassembled bolts are also prone to being lost. Therefore, a planetary gear reducer that can be quickly disassembled is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a planetary gear reducer that can be quickly disassembled, aiming to solve the problem that planetary gear reducers in the prior art are inconvenient to disassemble quickly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a planetary gear reducer that can be quickly disassembled, comprising a housing, an end cap provided at the left end of the housing, and a disassembly mechanism provided on the outer wall of the housing; The disassembly mechanism includes a threaded sleeve and a first mating ring. The outer wall of the threaded sleeve is threaded with a rotating ring. The left wall of the rotating ring is provided with a sliding groove. The inner wall of the sliding groove is slidably connected with a slider. The left wall of the slider is fixedly connected with a hinge seat. The outer wall of the hinge seat is hinged with a buckle via a pin. The outer wall of the first mating ring is fixedly connected with a positioning seat. The inner wall of the buckle is sleeved on the positioning seat.

[0007] As a further description of the above technical solution: the inner wall of the threaded sleeve is fixedly connected to the outer wall of the housing, the inner wall of the swivel ring is provided with an internal thread, and a push handle is fixedly connected to the top of the swivel ring.

[0008] As a further description of the above technical solution: the side wall of the positioning seat is provided with an insertion hole, the inner wall of the insertion hole is inserted with a plug, and the left wall of the plug is fixedly connected to the inner wall of the buckle.

[0009] As a further description of the above technical solution: the left wall of the first docking ring is fixedly connected to the right end of the end cap, and the left end of the housing is fixedly connected to the second docking ring.

[0010] As a further description of the above technical solution: a positioning pin is fixedly connected to the right wall of the first docking ring, and a first positioning hole is opened on the left wall of the second docking ring, with the right end of the positioning pin inserted into the inner wall of the first positioning hole.

[0011] As a further description of the above technical solution: the outer wall of the threaded sleeve is provided with a positioning component, the positioning component includes a positioning frame, the bottom wall of the positioning frame is fixedly connected to the outer wall of the threaded sleeve, and the inner wall of the positioning frame is slidably connected with a positioning post.

[0012] As a further description of the above technical solution: a baffle is fixedly connected to the outer wall of the positioning column, and a spring is sleeved on the outer wall of the positioning column. The left end of the spring abuts against the right wall of the baffle, and the right end of the spring abuts against the inner wall of the positioning frame.

[0013] As a further description of the above technical solution: a pull block is fixedly connected to the right end of the positioning post, a second positioning hole is opened on the right wall of the rotating ring, and the left end of the positioning post is inserted into the inner wall of the second positioning hole.

[0014] This utility model has the following beneficial effects: 1. In this utility model, when it is necessary to disassemble the end cover, the operator can rotate the rotating ring by pushing the handle to move the rotating ring closer to the end cover. At this time, the buckle moves accordingly, causing the insert block to disengage from the inside of the positioning seat. Then the buckle is flipped over, and the end cover loses its limit and can be directly removed from the housing, so that the end cover of the reducer can be quickly disassembled.

[0015] 2. In this utility model, by setting a positioning component, the positioning pin can be inserted into the second positioning hole on the side wall of the rotating ring to achieve positioning of the rotating ring, thereby avoiding the problem of the rotating ring becoming loose due to vibration during the operation of the reducer, and improving the stability after the end cover is fixed. Attached Figure Description

[0016] Figure 1 This is a front view of a planetary gear reducer that can be quickly disassembled according to the present invention. Figure 2 This is a schematic diagram of the housing structure of a planetary gear reducer that can be quickly disassembled according to this utility model; Figure 3This is a schematic cross-sectional view of the rotating ring section of a planetary gear reducer that can be quickly disassembled according to this utility model. Figure 4 This is a schematic diagram of the end cover structure of a planetary gear reducer that can be quickly disassembled according to the present invention. Figure 5 This is a schematic diagram of the rotating ring structure of a planetary gear reducer that can be quickly disassembled according to this utility model; Figure 6 This is a schematic diagram of the fastener structure of a planetary gear reducer that can be quickly disassembled according to this utility model; Figure 7 This is a schematic diagram of the threaded sleeve structure of a planetary gear reducer that can be quickly disassembled according to this utility model.

[0017] Legend: 1. Housing; 2. Disassembly mechanism; 201. Threaded sleeve; 202. Rotary ring; 203. Slide groove; 204. Slider; 205. Hinge seat; 206. Buckle; 207. Insert block; 208. First docking ring; 209. Positioning seat; 210. Insertion hole; 211. Positioning pin; 212. Second docking ring; 213. First positioning hole; 214. Push handle; 3. Positioning assembly; 301. Positioning frame; 302. Positioning post; 303. Spring; 304. Baffle; 305. Pull block; 306. Second positioning hole; 4. End cap. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a planetary gear reducer that can be quickly disassembled, comprising a housing 1, an end cap 4 provided at the left end of the housing 1, and a disassembly mechanism 2 provided on the outer wall of the housing 1. The disassembly mechanism 2 includes a threaded sleeve 201 and a first mating ring 208. The outer wall of the threaded sleeve 201 is threadedly connected to a rotating ring 202. The left wall of the rotating ring 202 is provided with a sliding groove 203. The inner wall of the sliding groove 203 is slidably connected to a slider 204. The slider 204 can slide inside the rotating ring 202 due to the setting of the sliding groove 203. The left wall of the slider 204 is fixedly connected to a hinge seat 205. The outer wall of the hinge seat 205 is hinged to a buckle 206 by a pin. The buckle 206 can be flipped by the setting of the hinge seat 205. The buckle 206 can be fastened to the positioning seat 209 to realize the mating of the end cover 4 and the housing 1. The outer wall of the first mating ring 208 is fixedly connected to the positioning seat 209. The inner wall of the buckle 206 is sleeved on the positioning seat 209. The setting of the positioning seat 209 can ensure that the buckle 206 pulls the end cover 4 towards the housing 1 to fit together.

[0020] Reference Figure 5 - Figure 7 The inner wall of the threaded sleeve 201 is fixedly connected to the outer wall of the housing 1. The inner wall of the rotating ring 202 is provided with an internal thread. The top of the rotating ring 202 is fixedly connected with a push handle 214. The push handle 214 makes it easy for the staff to push the rotating ring 202 to rotate.

[0021] Reference Figure 2 , Figure 4 The side wall of the positioning seat 209 is provided with an insertion hole 210. An insertion block 207 is inserted into the inner wall of the insertion hole 210. The left wall of the insertion block 207 is fixedly connected to the inner wall of the buckle 206. The insertion hole 210 and the insertion block 207 ensure that the buckle 206 cannot detach from the positioning seat 209. The left wall of the first docking ring 208 is fixedly connected to the right end of the end cover 4. The left end of the housing 1 is fixedly connected with the second docking ring 212. The first docking ring 208 and the second docking ring 212 facilitate the docking of the end cover 4 and the housing 1. The right wall of the first docking ring 208 is fixedly connected with a positioning pin 211. The left wall of the second docking ring 212 is provided with a first positioning hole 213. The right end of the positioning pin 211 is inserted into the inner wall of the first positioning hole 213. The first positioning hole 213 and the positioning pin 211 can position the end cover 4 at the left end of the housing 1, thereby limiting the end cover 4.

[0022] Reference Figure 1 , Figure 3 , Figure 7The outer wall of the threaded sleeve 201 is provided with a positioning component 3, which includes a positioning frame 301. The bottom wall of the positioning frame 301 is fixedly connected to the outer wall of the threaded sleeve 201, and a positioning post 302 is slidably connected to the inner wall of the positioning frame 301. The positioning post 302 can be used to position the rotating ring 202 to prevent the rotating ring 202 from becoming loose and causing instability of the end cover 4. A baffle 304 is fixedly connected to the outer wall of the positioning post 302, and a spring 303 is sleeved on the outer wall of the positioning post 302. The left end of the spring 303 abuts against the right wall of the baffle 304. The right end of the spring 303 abuts against the inner wall of the positioning frame 301. The force of the spring 303 can be transmitted to the positioning post 302 through the setting of the baffle 304. The right end of the positioning post 302 is fixedly connected to the pull block 305. The right wall of the rotating ring 202 is provided with a second positioning hole 306. The left end of the positioning post 302 is inserted into the inner wall of the second positioning hole 306. The setting of the pull block 305 makes it easy for the operator to pull the positioning post 302. The setting of the second positioning hole 306 makes it easy for the positioning post 302 to be inserted into the rotating ring 202, thereby achieving the positioning of the rotating ring 202.

[0023] Working principle: When it is necessary to disassemble the end cover 4, the operator pulls the pull block 305 to disengage the positioning post 302 from the second positioning hole 306 on the rotating ring 202. At this time, the rotating ring 202 loses its positioning. The operator can rotate the rotating ring 202 by pushing the handle 214, so that the rotating ring 202 moves closer to the end cover 4. At this time, the buckle 206 moves accordingly, so that the insert block 207 disengages from the inside of the positioning seat 209. Then, the buckle 206 is rotated around the hinge seat 205 as the axis, so that the buckle 206 separates from the positioning seat 209. At this time, the end cover 4 loses the restraint of the buckle 206 and can be directly removed from the housing 1. This allows the end cover 4 of the reducer to be quickly removed. When the end cover 4 needs to be installed, the first mating ring 208 on the end cover 4 is mated with the second mating ring 212 on the housing 1, so that its positioning pin 211 is inserted into the first positioning hole 213. Then, the buckle 206 is fastened onto the positioning seat 209. Rotating the rotating ring 202 causes the buckle 206 to move to the right, so that its insert 207 is inserted into the insertion hole 210 in the positioning seat 209. When the rotating ring 202 can no longer rotate, its positioning pin 302 is inserted into the second positioning hole 306 under the action of the spring 303, thereby positioning the rotating ring 202.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick detachable planetary gear reducer comprising a housing (1), characterized in that: The left end of the housing (1) is provided with an end cap (4), and the outer wall of the housing (1) is provided with a disassembly mechanism (2). The disassembly mechanism (2) includes a threaded sleeve (201) and a first mating ring (208). The outer wall of the threaded sleeve (201) is threaded with a rotating ring (202). The left wall of the rotating ring (202) is provided with a sliding groove (203). The inner wall of the sliding groove (203) is slidably connected with a slider (204). The left wall of the slider (204) is fixedly connected with a hinge seat (205). The outer wall of the hinge seat (205) is hinged with a buckle (206) by a pin. The outer wall of the first mating ring (208) is fixedly connected with a positioning seat (209). The inner wall of the buckle (206) is sleeved on the positioning seat (209).

2. A quick disconnect planetary gear reducer as set forth in claim 1, characterized in that: The inner wall of the threaded sleeve (201) is fixedly connected to the outer wall of the housing (1), the inner wall of the swivel (202) is provided with an internal thread, and the top of the swivel (202) is fixedly connected with a push handle (214).

3. A quick disconnect planetary gear reducer as set forth in claim 1, characterized in that: The positioning seat (209) has an insertion hole (210) on its side wall. An insertion block (207) is inserted into the inner wall of the insertion hole (210). The left wall of the insertion block (207) is fixedly connected to the inner wall of the buckle (206).

4. A quick disconnect planetary gear reducer as set forth in claim 1, characterized by: The left wall of the first docking ring (208) is fixedly connected to the right end of the end cap (4), and the left end of the housing (1) is fixedly connected to the second docking ring (212).

5. A quick disconnect planetary gear reducer as set forth in claim 4, characterized in that: The right wall of the first docking ring (208) is fixedly connected with a positioning pin (211), and the left wall of the second docking ring (212) is provided with a first positioning hole (213). The right end of the positioning pin (211) is inserted into the inner wall of the first positioning hole (213).

6. A quick disconnect planetary gear reducer as set forth in claim 1, characterized by: The outer wall of the threaded sleeve (201) is provided with a positioning component (3), the positioning component (3) includes a positioning frame (301), the bottom wall of the positioning frame (301) is fixedly connected to the outer wall of the threaded sleeve (201), and the inner wall of the positioning frame (301) is slidably connected with a positioning column (302).

7. A quick disconnect planetary gear reducer as set forth in claim 6, characterized in that: A baffle (304) is fixedly connected to the outer wall of the positioning post (302), and a spring (303) is sleeved on the outer wall of the positioning post (302). The left end of the spring (303) abuts against the right wall of the baffle (304), and the right end of the spring (303) abuts against the inner wall of the positioning frame (301).

8. A quick disconnect planetary gear reducer as set forth in claim 7, characterized by: The right end of the positioning post (302) is fixedly connected to a pull block (305), and the right wall of the rotating ring (202) is provided with a second positioning hole (306). The left end of the positioning post (302) is inserted into the inner wall of the second positioning hole (306).