Anti-rotation gear device

Abstract

The utility model provides an anti-rotation gear device, and relates to the technical field of gears. The anti-rotation gear device comprises a mounting frame, the inner wall of the mounting frame is rotationally connected with a driving rod, a limiting mechanism is arranged in the mounting frame and comprises a fixing ring, the inner wall of the fixing ring is rotationally connected with the driving rod, and the outer surface of the fixing ring is fixedly connected with a telescopic spring. According to the anti-rotation gear device, the fixing ring, the telescopic spring, the limiting clamping plate, the connecting rod, the supporting ring, the gear body and the limiting clamping ring are arranged in a matched mode, so that the limiting clamping plate is bounced into a limiting groove of the limiting clamping ring through the telescopic spring, and the gear body can only rotate anticlockwise effectively; and the situation that the gear body rotates clockwise is avoided, the gear body can be locked to be prevented from rotating without tedious manual adjustment, and further the device is more convenient.

Description

Technical Field

[0001] The utility model relates to a gear device, in particular to an anti-rotation gear device, belonging to the technical field of gear anti-rotation. Background Art

[0002] A gear refers to a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. The application of gears in transmission appeared very early.

[0003] After retrieval, an anti-rotation device for a truck-mounted crane disclosed in a Chinese patent with the publication number CN204778523U includes an ear on the connecting plate at the bottom of the slewing column and a mounting plate on the frame. A through hole is provided on the ear, and an anti-rotation shaft sleeve is provided on the mounting plate. The anti-rotation shaft sleeve is concentric with the through hole. The utility model can effectively prevent the crane from abnormal rotation.

[0004] Although the above solution can effectively prevent the crane from abnormal rotation, when locking the upper slewing part and the lower slewing part with an anti-rotation pin, the positions of the through hole and the anti-rotation pin are likely to be misaligned, resulting in the anti-rotation pin being unable to be inserted into the through hole for limiting. It is necessary to manually adjust the position of the through hole to be concentric with the anti-rotation pin to lock the anti-rotation, and the operation is rather troublesome and the convenience is poor. Therefore, we provide an anti-rotation gear device to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] The purpose of the utility model is to provide an anti-rotation gear device to solve the problem that the positions of the through hole and the anti-rotation pin are likely to be misaligned in the prior art, and it is necessary to manually adjust the position of the through hole to be concentric with the anti-rotation pin to lock the anti-rotation, and the operation is troublesome and the convenience is poor.

[0007] (2) Technical Solution

[0008] The utility model is realized by the following technical solutions: an anti-rotation gear device includes a mounting frame. A driving rod is rotatably connected to the inner wall of the mounting frame. A limiting mechanism is arranged inside the mounting frame. The limiting mechanism includes a fixed ring. The inner wall of the fixed ring is rotatably connected to the driving rod. One end of the telescopic spring is fixedly connected to the outer surface of the fixed ring, and the other end of the telescopic spring is fixedly connected to a limiting clamping plate. A connecting rod is rotatably connected to the inner wall of the limiting clamping plate. One end of the connecting rod is fixedly connected to a supporting ring, and the inner wall of the supporting ring is fixedly connected to the fixed ring.

[0009] Preferably, a gear body is rotatably connected to the outer surface of the support ring, and a limiting snap ring is fixedly connected to the inner wall of the gear body. Through the arrangement of the support ring, the gear body is effectively supported, making the rotation of the gear body more stable.

[0010] Preferably, a locking mechanism is arranged on the inner wall of the mounting bracket. The locking mechanism includes a driving ring, the inner wall of the driving ring is fixedly connected to a driving rod, and the outer surface of the driving ring is fixedly connected to the gear body. By driving the driving rod to rotate, the driving ring can be effectively driven to rotate.

[0011] Preferably, a locking ring is slidably connected to the outer surface of the driving ring, and a threaded rod is threadedly connected to the outer surface of the locking ring. The outer surface of the threaded rod is rotatably connected to the mounting bracket. By rotating the threaded rod, the locking ring can be effectively driven to move horizontally.

[0012] Preferably, a first sprocket is rotatably connected to the outer surface of the mounting bracket, and a chain is drivingly connected to the outer surface of the first sprocket. By driving the first sprocket to rotate, the chain can be effectively driven to transmit power.

[0013] Preferably, a second sprocket is drivingly connected to the outer surface of the chain. The outer surface of the second sprocket is rotatably connected to the mounting bracket, and the outer surface of the second sprocket is fixedly connected to the threaded rod. Through the transmission of the chain, the two second sprockets can be effectively driven to rotate.

[0014] Preferably, a fixed block is fixedly connected to the outer surface of the mounting bracket, and a driving motor is fixedly connected to the inner wall of the fixed block. The output end of the driving motor is fixedly connected to the first sprocket. By turning on the power to operate the driving motor, the first sprocket can be effectively driven to rotate.

[0015] Preferably, a sliding rod is fixedly connected to the inner wall of the locking ring, and the outer surface of the sliding rod is slidably connected to the mounting bracket. Through the arrangement of the sliding rod, the movement of the locking ring can be made more stable.

[0016] The present utility model provides an anti-rotation gear device, and its beneficial effects are as follows:

[0017] 1. In the anti-rotation gear device, through the cooperation of a fixing ring, a telescopic spring, a limit clamping plate, a connecting rod, a support ring, a gear body and a limit clamping ring, when the driving ring drives the driving rod to drive the gear body to rotate, and with the resilience of the telescopic spring, the limit clamping plate effectively swings in the limit groove of the limit clamping ring. Thus, in the present utility model, the telescopic spring pops the limit clamping plate into the limit groove of the limit clamping ring, effectively enabling the gear body to only rotate counterclockwise, avoiding the situation where the gear body rotates clockwise. There is no need for manual and cumbersome adjustment to lock the gear body to prevent its rotation, further making the device more convenient.

[0018] 2. In the anti-rotation gear device, through the cooperation of a driving ring, a locking ring, a threaded rod, a first sprocket, a chain, a second sprocket, a fixing block, a driving motor and a sliding rod, by operating the driving motor to rotate the threaded rod, the locking ring can be effectively driven to move. Thus, in the present utility model, when the locking ring moves to the driving ring and meshes with it, the gear body can be effectively limited and locked in both directions, avoiding the situation where the gear body rotates clockwise or counterclockwise again after stopping, further making the device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a three-dimensional structure diagram of the limit mechanism of the present utility model;

[0021] Figure 3 of the present utility model Figure 2 is a three-dimensional structure diagram of part A in the present utility model;

[0022] Figure 4 is a three-dimensional structure diagram of the locking mechanism of the present utility model.

[0023]

SYMBOLS OF MAIN COMPONENTS

[0024] 1. Mounting frame; 2. Driving rod;

[0025] 3. Limit mechanism; 301. Fixing ring; 302. Telescopic spring; 303. Limit clamping plate; 304. Connecting rod; 305. Support ring; 306. Gear body; 307. Limit clamping ring;

[0026] 4. Locking mechanism; 401. Driving ring; 402. Locking ring; 403. Threaded rod; 404. First sprocket; 405. Chain; 406. Second sprocket; 407. Fixing block; 408. Driving motor; 409. Sliding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The embodiment of the utility model provides a gear device for preventing rotation.

[0028] Please refer to Figure 1 , including a mounting bracket 1. A power supply is installed inside the mounting bracket 1, which can supply power to the electrical equipment in this application.

[0029] Please refer to again Figure 1 , a driving rod 2 is rotatably connected to the inner wall of the mounting bracket 1. A driving device is installed at one end of the driving rod 2. By turning on the driving device, the driving rod 2 can be effectively rotated.

[0030] Please refer to again Figure 2 and Figure 3 , a limiting mechanism 3 is arranged inside the mounting bracket 1. The limiting mechanism 3 includes a fixing ring 301. The inner wall of the fixing ring 301 is rotatably connected to the driving rod 2. A telescopic spring 302 is fixedly connected to the outer surface of the fixing ring 301. One end of the telescopic spring 302 away from the fixing ring 301 is fixedly connected to a limiting clamping plate 303. A connecting rod 304 is rotatably connected to the inner wall of the limiting clamping plate 303. A blocking block is fixedly installed at one end of the limiting clamping plate 303 connected to the connecting rod 304. The blocking block abuts against the fixing ring 301. By the blocking block, the limiting clamping plate 303 is effectively restricted from rotating clockwise around the connecting rod 304.

[0031] One end of the connecting rod 304 is fixedly connected to a support ring 305. The inner wall of the support ring 305 is fixedly connected to the fixing ring 301. Through the setting of the support ring 305, the connecting rod 304 is effectively supported and fixed.

[0032] A gear body 306 is rotatably connected to the outer surface of the support ring 305. A limiting clamping ring 307 is fixedly connected to the inner wall of the gear body 306. A limiting clamping groove is opened on the inner wall of the limiting clamping ring 307. The limiting clamping groove is adapted to the limiting clamping plate 303. By the limiting clamping plate 303 abutting against the limiting clamping groove, the gear body 306 can be effectively prevented from rotating back.

[0033] Please refer to again Figure 4 , a locking mechanism 4 is arranged on the inner wall of the mounting bracket 1. The locking mechanism 4 includes a driving ring 401. The inner wall of the driving ring 401 is fixedly connected to the driving rod 2. The outer surface of the driving ring 401 is fixedly connected to the gear body 306. By the rotation of the driving ring 401, the gear body 306 can be effectively driven to rotate.

[0034] A locking ring 402 is slidably connected to the outer surface of the driving ring 401. A threaded rod 403 is threadedly connected to the outer surface of the locking ring 402. The outer surface of the threaded rod 403 is rotatably connected to the mounting bracket 1. A limiting card slot is formed on the outer surface of the driving ring 401. Meshing teeth are fixedly installed on the inner wall of the locking ring 402. By sliding the meshing teeth into the limiting card slot, the driving ring 401 can be effectively locked.

[0035] A first sprocket 404 is rotatably connected to the outer surface of the mounting bracket 1. A chain 405 is drivingly connected to the outer surface of the first sprocket 404. By driving the first sprocket 404 to rotate, the chain 405 can be effectively driven to transmit.

[0036] A second sprocket 406 is drivingly connected to the outer surface of the chain 405. The outer surface of the second sprocket 406 is rotatably connected to the mounting bracket 1. The outer surface of the second sprocket 406 is fixedly connected to the threaded rod 403. By rotating the second sprocket 406, the threaded rod 403 can be effectively driven to rotate.

[0037] A fixed block 407 is fixedly connected to the outer surface of the mounting bracket 1. A driving motor 408 is fixedly connected to the inner wall of the fixed block 407. The output end of the driving motor 408 is fixedly connected to the first sprocket 404. Through the setting of the fixed block 407, the driving motor 408 is effectively fixed and supported.

[0038] A sliding rod 409 is fixedly connected to the inner wall of the locking ring 402. The outer surface of the sliding rod 409 is slidably connected to the mounting bracket 1. Through the setting of the sliding rod 409, the locking ring 402 can move more stably.

[0039] The driving motor 408 in this application is a common electrical device in the prior art. This application will not elaborate too much on its model or internal structure, and it can also be replaced by other power sources.

[0040] When the utility model is in use: driving the driving rod 2 to drive the driving ring 401 to rotate, so as to effectively drive the gear body 306 to rotate. The rotation of the gear body 306 drives the limit snap ring 307 to rotate. The rotation of the limit snap ring 307 and the resilience of the telescopic spring 302 can effectively drive the limit clamping plate 303 to reciprocate in the limit groove of the limit snap ring 307 with the connecting rod 304 as the axis. When the gear body 306 rotates back, it will drive the limit clamping plate 303, and the connection end of the limit clamping plate 303 and the connecting rod 304 will block the fixed ring 301, so as to effectively limit the gear body 306 to rotate only counterclockwise. By operating the driving motor 408 to rotate the first sprocket 404, the rotation of the first sprocket 404 drives the chain 405 to drive, the chain 405 drives the second sprocket 406 to rotate, the second sprocket 406 rotates to drive the second sprocket 406 to rotate, the threaded rod 403 rotates to drive the locking ring 402 to move until the limit teeth of the locking ring 402 slide into the slot of the driving ring 401, which can effectively lock the gear body 306 in two-way limit and avoid the situation that the gear body 306 rotates clockwise or counterclockwise again after stopping, further making the device more practical.

[0041] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A gear device for preventing rotation, comprising a mounting bracket (1), characterized in that: The inner wall of the mounting bracket (1) is rotatably connected to a driving rod (2). A limiting mechanism (3) is arranged inside the mounting bracket (1). The limiting mechanism (3) includes a fixed ring (301). The inner wall of the fixed ring (301) is rotatably connected to the driving rod (2). One end of a telescopic spring (302) is fixedly connected to the outer surface of the fixed ring (301), and the other end of the telescopic spring (302) is fixedly connected to a limiting clamping plate (303). One end of a connecting rod (304) is rotatably connected to the inner wall of the limiting clamping plate (303), and the other end of the connecting rod (304) is fixedly connected to a support ring (305). The inner wall of the support ring (305) is fixedly connected to the fixed ring (301).

2. The anti-rotation gear device according to claim 1, characterized in that: A gear body (306) is rotatably connected to the outer surface of the support ring (305), and a limiting clamping ring (307) is fixedly connected to the inner wall of the gear body (306).

3. The anti-rotation gear device according to claim 2, wherein: A locking mechanism (4) is arranged on the inner wall of the mounting bracket (1). The locking mechanism (4) includes a driving ring (401). The inner wall of the driving ring (401) is fixedly connected to the driving rod (2), and the outer surface of the driving ring (401) is fixedly connected to the gear body (306).

4. The anti-rotation gear device according to claim 3, characterized in that: A locking ring (402) is slidably connected to the outer surface of the driving ring (401), and a threaded rod (403) is threadedly connected to the outer surface of the locking ring (402). The outer surface of the threaded rod (403) is rotatably connected to the mounting bracket (1).

5. The anti-rotation gear device according to claim 4, characterized in that: A first sprocket (404) is rotatably connected to the outer surface of the mounting bracket (1), and a chain (405) is drivingly connected to the outer surface of the first sprocket (404).

6. The anti-rotation gear device according to claim 5, characterized in that: A second sprocket (406) is drivingly connected to the outer surface of the chain (405). The outer surface of the second sprocket (406) is rotatably connected to the mounting bracket (1), and the outer surface of the second sprocket (406) is fixedly connected to the threaded rod (403).

7. The anti-rotation gear device according to claim 5, characterized in that: A fixed block (407) is fixedly connected to the outer surface of the mounting bracket (1). A driving motor (408) is fixedly connected to the inner wall of the fixed block (407). The output end of the driving motor (408) is fixedly connected to the first sprocket (404).

8. The anti-rotation gear device according to claim 4, characterized in that: A sliding rod (409) is fixedly connected to the inner wall of the locking ring (402), and the outer surface of the sliding rod (409) is slidably connected to the mounting bracket (1).

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