Speed reducer structure with lock

By setting a cylinder-controlled shift fork and a locking block on the reducer to engage with a limit gear ring, the problem of reducer locking is solved, the reducer is stabilized, and reverse rotation and equipment damage are prevented.

CN223794647UActive Publication Date: 2026-01-13SHIYAN KUNZHONG AUTOMOBILE IND CO LTD
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Patent Information

Application Number
CN202520766178.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-01-13
Estimated Expiration
2035-04-22

AI Technical Summary

Technical Problem

Existing speed reducers are difficult to lock during use, leading to reverse rotation and unstable positioning, which can cause equipment to go out of control or be damaged.

Method used

A lockable reducer structure is designed. By setting a cylinder-controlled shift fork and a locking block on a non-destructive housing and engaging with a limiting gear ring, the transmission gear is locked to prevent reverse rotation.

Benefits of technology

Without altering the reducer's carrier structure, a locking device is added to ensure the reducer's stability, prevent reverse rotation, and avoid equipment damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a speed reducer structure with a lock, which relates to the field of speed reducers and comprises a lossless shell and an air cylinder, a transmission gear is connected to the lossless shell through a bearing, a shell with a tooth difference is fixed on the transmission gear through a bolt, the shell with the tooth difference is connected to the lossless shell through a bearing, a limiting gear ring is fixed on the shell with the tooth difference, and the limiting gear ring is fixed on the shell with the tooth difference. The lossless shell is slidably connected with a meshing sleeve, and clamping blocks are evenly fixed to the meshing sleeve. According to the speed reducer structure with the lock, under the condition that the state of a speed reducer carrier (axle housing) is not changed, the height of a right differential housing of a main speed reducer can be changed, a differential locking device is additionally arranged in an abdicated space, and the separation and locking functions of a clamping block and a limiting gear ring are controlled by a shifting fork controlled by an air cylinder on a speed reducer housing to stretch out and draw back; the stability of the device can be guaranteed, and the problems of equipment damage and the like caused by reversion of the speed reducer can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a lockable speed reducer structure. Background Technology

[0002] The main functions of a speed reducer include speed reduction and torque increase. Through a gear speed converter, the speed reducer reduces the rotational speed of the motor to the required rotational speed and obtains a larger torque. Specifically, the speed reducer can reduce the output speed, increase the torque, and improve the load capacity, thereby meeting the working requirements.

[0003] Existing speed reducers are difficult to lock in actual use, which makes them prone to reversal and makes it difficult to keep the position fixed, resulting in equipment loss of control or damage. To address these issues, a lockable speed reducer structure is designed to better meet actual usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a lockable reducer structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lockable reducer structure, comprising a non-destructive housing and a cylinder, a transmission gear being connected to the non-destructive housing by a bearing, a toothed differential housing being fixed to the transmission gear by bolts, the toothed differential housing being connected to the non-destructive housing by a bearing, a limit toothed ring being fixed to the toothed differential housing, a meshing sleeve being slidably connected to the non-destructive housing, and locking blocks being uniformly fixed to the meshing sleeve.

[0006] Preferably, an end cap is fixed to the non-destructive housing by bolts, and a flange is provided at the upper end of the end cap. The above structure can ensure the integrity of the device.

[0007] Preferably, the end cover is connected to a rotating shaft by a bearing, and the lower end of the rotating shaft is located above the toothed differential housing. The rotating shaft can provide a basic guarantee for the normal operation of the device.

[0008] Preferably, a drive gear is fixed on the rotating shaft and is housed within a non-destructive housing. The drive gear and the transmission gear are meshed together, and the normal operation of the reducer can be ensured through the transmission action between the drive gear and the transmission gear.

[0009] Preferably, one end of the cylinder is fixed to the shift fork shaft, and the other end of the cylinder is fixed to the axle housing. The extension and retraction of the cylinder can provide a basic force for the movement of the shift fork shaft.

[0010] Preferably, the shift fork shaft and the non-destructive housing are slidably connected, and the shift fork body is fixed on the shift fork shaft. When the shift fork shaft moves, the sliding guiding effect between the shift fork shaft and the non-destructive housing can ensure the stability of the shift fork shaft movement.

[0011] Preferably, the shift fork body and the engagement sleeve are engaged, and the shift fork body and the non-destructive housing are slidably connected. The shift fork body is moved by the shift fork shaft. In conjunction with the engagement between the shift fork body and the engagement sleeve, the basic force can be provided for the movement of the engagement sleeve, and the basic guarantee can be provided for the locking of the transmission gear.

[0012] Preferably, the locking block and the limiting gear ring are engaged, and the tooth grooves on the locking block and the limiting gear ring are distributed in a one-to-one correspondence. Through the engagement between the locking block and the limiting gear ring, the transmission gear can be locked, thereby preventing the device from reversing and ensuring the stability of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the lockable reducer structure can change the height of the right differential housing of the main reducer without changing the reducer carrier (bridge housing), and add a differential locking device in the freed-up space. The extension and retraction of the shift fork controlled by the cylinder on the reducer housing can control the separation and locking function of the locking block and the limiting gear ring, which can not only ensure the stability of the device, but also prevent the reducer from reversing and causing equipment damage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional front view of the overall structure of the device of this utility model;

[0015] Figure 2 This is a frontal three-dimensional structural diagram of the overall internal components of the device of this utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the limiting toothed ring and the locking block of this utility model.

[0017] In the diagram: 1. Undamaged housing; 101. End cap; 102. Flange; 2. Rotating shaft; 201. Drive gear; 3. Transmission gear; 4. Housing with tooth difference; 401. Limiting tooth ring; 5. Cylinder; 6. Shift fork shaft; 7. Shift fork body; 8. Engaging sleeve; 801. Locking block. 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] Please see Figures 1-3 This utility model provides a technical solution: a lockable reducer structure, including a non-destructive housing 1 and a cylinder 5. A transmission gear 3 is connected to the non-destructive housing 1 by a bearing. A toothed differential housing 4 is fixed to the transmission gear 3 by bolts. The toothed differential housing 4 is connected to the non-destructive housing 1 by a bearing. A limit toothed ring 401 is fixed on the toothed differential housing 4. A meshing sleeve 8 is slidably connected to the non-destructive housing 1. A locking block 801 is uniformly fixed on the meshing sleeve 8.

[0020] An end cap 101 is bolted to the non-destructive housing 1, and a flange 102 is provided on the upper end of the end cap 101; a rotating shaft 2 is connected to the end cap 101 by a bearing, and the lower end of the rotating shaft 2 is located above the toothed differential housing 4; a drive gear 201 is fixed on the rotating shaft 2, and the drive gear 201 is located inside the non-destructive housing 1, and the drive gear 201 is meshed with the transmission gear 3; one end of the cylinder 5 is fixed to the shift fork shaft 6, and the other end of the cylinder 5 is fixed to the bridge housing; the shift fork shaft 6 is slidably connected to the non-destructive housing 1, and a shift fork body 7 is fixed on the shift fork shaft 6; the shift fork body 7 is engaged with the meshing sleeve 8, and the shift fork body 7 is slidably connected to the non-destructive housing 1; the locking block 801 is engaged with the limiting toothed ring 401, and the tooth grooves on the locking block 801 and the limiting toothed ring 401 are distributed in a one-to-one correspondence;

[0021] When using this lockable reducer structure, such as Figures 1-3 As shown, the device is in a locked state at this time, that is, the locking block 801 and the limiting gear ring 401 are engaged with each other, thereby preventing the reducer from reversing. When the reducer needs to work, the control cylinder 5 retracts to drive the shift fork shaft 6 and the shift fork body 7 to slide to the right, thereby driving the meshing sleeve 8 and the locking block 801 to slide to the right, so that the locking block 801 separates from the limiting gear ring 401, thereby releasing the locking effect. The drive mechanism drives the rotating shaft 2 to rotate, and with the meshing transmission between the drive gear 201 and the transmission gear 3, the normal operation of the device can be guaranteed. This is the working principle of the lockable reducer structure.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt-locking retarder structure comprising a lossless housing (1) and a gas cylinder (5), characterized in that: The non-loss shell (1) is connected with a transmission gear (3) through a bearing, the transmission gear (3) is fixed with a gear difference shell (4) through a bolt, the gear difference shell (4) is connected with the non-loss shell (1) through a bearing, the gear difference shell (4) is fixed with a limiting gear ring (401), the non-loss shell (1) is connected with a meshing sleeve (8) through a sliding connection, and the meshing sleeve (8) is uniformly fixed with a clamping block (801).

2. A belt decelerator structure according to claim 1, characterized in that: The non-loss shell (1) is connected with an end cover (101) through a bolt, and the end cover (101) is provided with a flange (102) at the upper end.

3. A belt decelerator structure according to claim 2, characterized in that: The end cover (101) is connected with a rotating shaft (2) through a bearing, and the lower end of the rotating shaft (2) is located above the gear difference shell (4).

4. A belt decelerator structure according to claim 3, characterized in that: The rotating shaft (2) is fixed with a driving gear (201), the driving gear (201) is arranged in the non-loss shell (1), and the driving gear (201) and the transmission gear (3) are connected in meshing mode.

5. A belt decelerator structure according to claim 1, wherein: One end of the cylinder (5) is fixed with the fork shaft (6), and the other end of the cylinder (5) is fixed on the axle housing.

6. A belt decelerator structure according to claim 5, wherein: The fork shaft (6) is connected with the non-loss shell (1) through a sliding connection, and the fork shaft (6) is fixed with a fork body (7).

7. A belt decelerator structure according to claim 6, characterized in that: The fork body (7) is connected with the meshing sleeve (8) through a clamping connection, and the fork body (7) is connected with the non-loss shell (1) through a sliding connection.

8. A belt and lock decoupler structure as set forth in claim 1, wherein: The clamping block (801) is connected with the limiting gear ring (401) through a clamping connection, and the clamping block (801) and the limiting gear ring (401) are distributed in one-to-one correspondence.