A light and thin gear reducer

Abstract

The utility model discloses a light and thin gear reducer, including a reducer body, a mounting seat fixedly connected to the front of the reducer body, a shaft sleeve arranged on the front of the mounting seat, a main shaft rotatably arranged on the inner wall of the shaft sleeve, a first sealing mechanism arranged on the outer wall of the shaft sleeve, a second sealing mechanism arranged between the shaft sleeve and the mounting seat, the second sealing mechanism comprising a connecting ring and a connecting ring, the connecting ring sleeve is arranged on the outer wall of the shaft sleeve, the connecting ring is connected to the first sealing mechanism, a fixing mechanism is arranged between the connecting ring and the mounting seat, and a rubber ring is arranged between the shaft sleeve and the mounting seat. The utility model arranges the connecting ring and the rubber ring, the connecting ring squeezes the rubber ring, so that the rubber ring presses against the mounting seat, and then with the cooperation of the first sealing mechanism, a closed area is formed at the connection between the shaft sleeve and the mounting seat, thereby improving the sealing performance of the connection between the shaft sleeve and the mounting seat, and avoiding the phenomenon of oil leakage between the shaft sleeve and the mounting seat.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a light and thin gear reducer. Background Art

[0002] A thin and light gear reducer is a light-weight reducer currently used for power transmission for deceleration. Some reducers directly set a sealing mechanism on the sleeve on the outer wall of the main shaft and the mounting seat to avoid oil leakage between the mounting seat and the sleeve. For example, the application number is 202121085021.X and the name is a thin and light gear reducer. A sleeve is provided on the outer wall of the sleeve, and a sealing ring is provided inside the sleeve. However, the sleeve is only connected to the mounting seat by a snap-fit ​​method, which causes oil to flow out from the gap between the sleeve and the mounting seat along the gap between the sleeve and the mounting seat, thereby reducing the sealing effect. For this reason, we propose a thin and light gear reducer with better sealing effect. Utility Model Content

[0003] The purpose of the utility model is to provide a light and thin gear reducer to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a thin and light gear reducer, comprising a reducer body, a mounting seat is fixedly connected to the front of the reducer body, a sleeve is arranged on the front of the mounting seat, a main shaft is rotatably arranged on the inner wall of the sleeve, a first sealing mechanism is arranged on the outer wall of the sleeve, a second sealing mechanism is arranged between the sleeve and the mounting seat, and the second sealing mechanism comprises:

[0005] A connecting ring, which is sleeved on the outer wall of the shaft sleeve, is connected to the first sealing mechanism, and a fixing mechanism is provided between the connecting ring and the mounting seat;

[0006] A rubber ring is arranged between the shaft sleeve and the mounting seat.

[0007] Preferably, an annular groove is provided on the back side of the connecting ring, and the outer wall of the rubber ring is movably interlaced with the inner wall of the annular groove.

[0008] Preferably, the first sealing mechanism comprises a connecting sleeve, the connecting sleeve is sleeved on the outer wall of the shaft sleeve, the back side of the connecting sleeve is fixedly connected to the front side of the connecting ring, and a rubber sleeve is arranged between the connecting sleeve and the shaft sleeve.

[0009] Preferably, the fixing mechanism includes a bolt, a socket is provided on the back side of the connecting ring, the outer wall of the bolt is movably inserted and connected with the inner wall of the socket, a threaded hole is provided on the front side of the mounting seat, the outer wall of the bolt is threadedly connected with the inner wall of the threaded hole, a countersunk hole is provided on the front side of the connecting ring, and the knob of the bolt is inserted and arranged inside the countersunk hole.

[0010] Preferably, a movable groove is provided inside the socket, the inner wall of the movable groove is slidably connected with a fixing ring, the fixing ring is fixedly sleeved on the outer wall of the bolt, the outer wall of the bolt is sleeved with a spring, and a contact mechanism is provided between the fixing ring and the spring.

[0011] Preferably, the contact mechanism includes a swivel, the swivel is sleeved with an outer wall of a bolt, the swivel is arranged between a fixed ring and a spring, a plurality of ball grooves are opened on the back side of the fixed ring, a plurality of inner walls of the ball grooves are movably clamped with rolling balls, and the outer walls of the plurality of rolling balls are in contact with the front side of the swivel.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model provides a connecting ring and a rubber ring. The connecting ring squeezes the rubber ring so that the rubber ring abuts against the mounting seat. Then, with the cooperation of the first sealing mechanism, a closed area is formed at the connection between the shaft sleeve and the mounting seat, thereby improving the sealing performance of the connection between the shaft sleeve and the mounting seat and avoiding oil leakage between the shaft sleeve and the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the side sectional structure of the connecting ring of the utility model.

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0017] In the figure: 101, reducer body; 102, mounting seat; 103, bushing; 104, main shaft; 201, connecting ring; 202, rubber ring; 203, annular groove; 301, connecting sleeve; 302, rubber sleeve; 401, jack; 402, bolt; 403, threaded hole; 404, countersunk hole; 501, movable groove; 502, fixing ring; 503, spring; 601, swivel; 602, ball groove; 603, rolling ball. DETAILED DESCRIPTION

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

[0019] The utility model provides Figure 1-3 The light and thin gear reducer shown in the figure includes a reducer body 101, a mounting seat 102 is fixedly connected to the front of the reducer body 101, a shaft sleeve 103 is arranged on the front of the mounting seat 102, a main shaft 104 is rotatably arranged on the inner wall of the shaft sleeve 103, a first sealing mechanism is arranged on the outer wall of the shaft sleeve 103, a second sealing mechanism is arranged between the shaft sleeve 103 and the mounting seat 102, the second sealing mechanism includes a connecting ring 201 and a rubber ring 202, the connecting ring 201 is sleeved on the outer wall of the shaft sleeve 103, and the connecting ring 201 and the first sealing mechanism are connected. The connecting ring 201 and the mounting seat 102 are connected with each other, a fixing mechanism is arranged between the connecting ring 201 and the mounting seat 102, and the rubber ring 202 is arranged between the shaft sleeve 103 and the mounting seat 102. The rubber ring 202 is pressed by the connecting ring 201 so that the rubber ring 202 is pressed against the mounting seat 102. Then, with the cooperation of the first sealing mechanism, a closed area is formed at the connection between the shaft sleeve 103 and the mounting seat 102, thereby improving the sealing performance of the connection between the shaft sleeve 103 and the mounting seat 102 and avoiding oil leakage between the shaft sleeve 103 and the mounting seat 102.

[0020] Among them, an annular groove 203 is opened on the back side of the connecting ring 201, and the outer wall of the rubber ring 202 is movably connected with the inner wall of the annular groove 203. The rubber ring 202 is limited by the annular groove 203, so that the connecting ring 201 can stably squeeze the rubber ring 202 to make it press against the front side of the mounting seat 102, thereby improving the stability of the second sealing mechanism.

[0021] Preferably, the first sealing mechanism includes a connecting sleeve 301, which is sleeved on the outer wall of the sleeve 103, and the back of the connecting sleeve 301 is fixedly connected to the front of the connecting ring 201. A rubber sleeve 302 is arranged between the connecting sleeve 301 and the sleeve 103. By clamping the rubber sleeve 302 between the connecting sleeve 301 and the sleeve 103, the connection between the mounting seat 102 and the sleeve 103 can be stably sealed by the rubber sleeve 302 and the rubber ring 202, thereby ensuring the sealing effect.

[0022] Preferably, the fixing mechanism includes a bolt 402, a socket 401 is provided on the back of the connecting ring 201, the outer wall of the bolt 402 is movably connected with the inner wall of the socket 401, a threaded hole 403 is provided on the front of the mounting seat 102, the outer wall of the bolt 402 is threadedly connected with the inner wall of the threaded hole 403, a countersunk hole 404 is provided on the front of the connecting ring 201, and the knob of the bolt 402 is inserted into the inside of the countersunk hole 404. The connecting ring 201 can be fixed to the mounting seat 102 by passing the bolt 402 through the bolt 402 and screwing it into the socket 401, thereby improving the working stability of the second sealing mechanism.

[0023] Furthermore, a movable groove 501 is provided inside the socket 401, and a fixing ring 502 is slidably connected to the inner wall of the movable groove 501. The fixing ring 502 is fixedly sleeved on the outer wall of the bolt 402. A spring 503 is sleeved on the outer wall of the bolt 402. A contact mechanism is provided between the fixing ring 502 and the spring 503. When the bolt 402 is screwed into the threaded hole 403, the spring 503 is squeezed, so that the compressed spring 503 forms a reaction force on the bolt 402, so that the bolt 402 can be stably engaged with the threaded hole 403, thereby ensuring the stability of the fixing mechanism.

[0024] Furthermore, the contact mechanism includes a swivel 601, which is sleeved with the outer wall of the bolt 402. The swivel 601 is arranged between the fixed ring 502 and the spring 503. A plurality of ball grooves 602 are opened on the back of the fixed ring 502. The inner walls of the plurality of ball grooves 602 are movably clamped with rolling balls 603. The outer walls of the plurality of rolling balls 603 are in contact with the front of the swivel 601. Through the arrangement of the rolling balls 603, the swivel 601 can rotate stably on the back of the fixed ring 502, so that when the bolt 402 rotates, it will not cause premature torque to the spring 503, thereby avoiding damage to the spring 503, thereby improving the stability of the use of the spring 503.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light and thin gear reducer, comprising a reducer body (101), wherein the front of the reducer body (101) is fixedly connected to a mounting seat (102), a shaft sleeve (103) is arranged on the front of the mounting seat (102), a main shaft (104) is rotatably arranged on the inner wall of the shaft sleeve (103), and a first sealing mechanism is arranged on the outer wall of the shaft sleeve (103), characterized in that: A second sealing mechanism is provided between the shaft sleeve (103) and the mounting seat (102), and the second sealing mechanism comprises: A connecting ring (201), wherein the connecting ring (201) is sleeved on the outer wall of the shaft sleeve (103), the connecting ring (201) is connected to the first sealing mechanism, and a fixing mechanism is provided between the connecting ring (201) and the mounting seat (102); A rubber ring (202) is arranged between the shaft sleeve (103) and the mounting seat (102).

2. A light and thin gear reducer according to claim 1, characterized in that: An annular groove (203) is provided on the back of the connecting ring (201), and the outer wall of the rubber ring (202) is movably connected with the inner wall of the annular groove (203).

3. A thin and light gear reducer according to claim 1, characterized in that: The first sealing mechanism comprises a connecting sleeve (301), the connecting sleeve (301) being sleeved on the outer wall of the shaft sleeve (103), the back side of the connecting sleeve (301) being fixedly connected to the front side of the connecting ring (201), and a rubber sleeve (302) being arranged between the connecting sleeve (301) and the shaft sleeve (103).

4. A light and thin gear reducer according to claim 1, characterized in that: The fixing mechanism comprises a bolt (402); a socket (401) is provided on the back of the connecting ring (201); the outer wall of the bolt (402) is movably connected to the inner wall of the socket (401); a threaded hole (403) is provided on the front of the mounting seat (102); the outer wall of the bolt (402) is threadedly connected to the inner wall of the threaded hole (403); a countersunk hole (404) is provided on the front of the connecting ring (201); and the knob of the bolt (402) is inserted into the inside of the countersunk hole (404).

5. A light and thin gear reducer according to claim 4, characterized in that: A movable groove (501) is provided inside the insertion hole (401), and a fixing ring (502) is slidably connected to the inner wall of the movable groove (501). The fixing ring (502) is fixedly sleeved on the outer wall of the bolt (402), and a spring (503) is sleeved on the outer wall of the bolt (402), and a contact mechanism is provided between the fixing ring (502) and the spring (503).

6. A light and thin gear reducer according to claim 5, characterized in that: The contact mechanism comprises a rotating ring (601), the rotating ring (601) is sleeved with the outer wall of the bolt (402), the rotating ring (601) is arranged between the fixed ring (502) and the spring (503), the back side of the fixed ring (502) is provided with a plurality of ball grooves (602), the inner walls of the plurality of ball grooves (602) are movably engaged with rolling balls (603), and the outer walls of the plurality of rolling balls (603) are in contact with the front side of the rotating ring (601).

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