Belt pulley limiting device

Abstract

The utility model discloses a belt pulley limiting device, which belongs to the technical field of belt pulley limiting and comprises a motor, a belt pulley body is mounted on an output shaft of the motor, a support cylinder is fixedly connected to the output shaft of the motor, a support table is fixedly connected to one end, far away from the belt pulley body, of the support cylinder, and a transmission ring is arranged on the outer side wall of the belt pulley body. Through cooperative use of a transmission ring and a fixing block, a belt pulley body deviates to drive the transmission ring to push the fixing block, through cooperative use of a moving rod, a sliding rod and a moving block, the moving block moves on a supporting table in the vertical direction, and through cooperative use of a first transmission rod and a push block, the belt pulley body is driven to move in the vertical direction. The belt pulley body is horizontally pushed by the pushing block on the supporting cylinder, so that the deviation angle of the belt pulley body is corrected, uneven abrasion between a belt and the belt pulley body is reduced, and the situation that abrasion between the belt and the belt pulley body is accelerated due to the fact that local stress of the belt is too large in the running process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulley limiting, and in particular relates to a pulley limiting device. Background Art

[0002] Belt drive is a common mechanical transmission method. Due to its advantages such as simple structure, low cost, and ability to achieve long-distance transmission, it has been widely used in many industrial fields and various mechanical equipment in daily life.

[0003] However, in actual use, the pulley may deviate due to various reasons. This deviation may be caused by improper installation, vibration during equipment operation, load changes and other factors. When the pulley deviates, it will cause uneven contact between the belt and the pulley, thereby causing uneven wear. The deviation of the pulley may also cause the belt to be locally subjected to excessive force during operation, which will not only accelerate the wear between the belt and the pulley, but may also cause the belt to break.

[0004] In order to solve the above problems, this application proposes a pulley limiting device. Utility Model Content

[0005] In view of the problems in the related art, the present invention proposes a pulley limiting device to overcome the above technical problems existing in the existing related art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A pulley limiting device comprises a motor, a pulley body is mounted on the output shaft of the motor, a support cylinder is fixedly connected to the output shaft of the motor, an end of the support cylinder away from the pulley body is fixedly connected to a support platform, a transmission ring is provided on the outer wall of the pulley body, a transmission assembly is provided between the transmission ring and the support platform, and a limiting assembly is provided on the transmission assembly;

[0008] The outer wall of the movable block is rotatably connected to the outer wall of the supporting platform, and the outer wall of the movable block is rotatably connected to the sliding rod, and the outer wall of the movable block is rotatably connected to the sliding rod, and the end of the sliding rod away from the movable block is slidably connected to the movable rod, and the end of the movable rod away from the sliding rod is rollingly connected to the fixed block, and the outer wall of the fixed block is fixedly connected to the outer wall of the transmission ring, and the outer wall of the movable block is rotatably connected to the first transmission rod, and the end of the first transmission rod away from the moving block is rotatably connected to the push block, and the outer wall of the push block is slidably connected to the outer wall of the support cylinder.

[0009] Preferably, the limiting assembly includes a second limiting column fixedly connected to the inner wall of the moving rod, the outer wall of the second limiting column is slidably connected to a sliding block, the outer wall of the sliding block is hinged to a second transmission rod, the second transmission rod is hinged to a baffle at one end away from the sliding block, and one end of the baffle is hinged to the outer wall of the transmission ring. By arranging the sliding block, the second transmission rod and the baffle, the belt inside the pulley body is limited to avoid the belt inside the pulley body falling off after the pulley body is offset, thereby reducing the accident rate.

[0010] Preferably, the inner wall of the moving rod is fixedly connected with a spring, and one end of the spring away from the inner wall of the moving rod is fixedly connected to the outer wall of the sliding block. By setting the spring, a thrust is provided for the sliding block, so that the sliding block returns to its original position.

[0011] Preferably, the outer wall of the baffle is rotatably connected to a roller, and the roller is located at the center of the outer wall of the end of the baffle away from the transmission ring. By arranging the roller, direct contact between the belt and the baffle is avoided, thereby reducing the wear rate of the baffle.

[0012] Preferably, the outer wall of the pulley body is fixedly connected with a support block, and the outer wall of the support block is in contact with the outer wall of the inner ring of the transmission ring. By providing the support block, the transmission ring is supported to prevent the transmission ring from deflecting.

[0013] Preferably, the central axes of the baffle, fixed block and push block are located in the same plane. By arranging the baffle, fixed block and push block, the stability of the structure is improved, so that the structure forms a stable force system in the plane.

[0014] To sum up, the technical effects and advantages of the utility model are as follows: the pulley limiting device, through the coordinated use of the transmission ring and the fixed block, causes the pulley body to deviate and drives the transmission ring to push the fixed block; through the coordinated use of the moving rod, the sliding rod and the moving block, the moving block is moved vertically on the support platform; through the coordinated use of the first transmission rod and the push block, the push block pushes the pulley body horizontally on the support cylinder, thereby correcting the offset angle of the pulley body, thereby reducing the uneven wear between the belt and the pulley body, and thus avoiding excessive local force on the belt during operation, which accelerates the wear between the belt and the pulley body.

[0015] The spring and the sliding block cooperate to make the pulley body offset and drive the sliding rod to push the sliding block to move. The sliding block cooperates with the second limit post to make the sliding block move along a fixed direction. The second transmission rod and the baffle cooperate to make the sliding block push the baffle through the second transmission rod, thereby making the baffle limit the belt inside the pulley body to prevent the belt from detaching from the pulley body and causing injury to personnel. The spring and the sliding block cooperate to make the device return to its original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the push block and other related parts of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the baffle and other related parts of the utility model;

[0019] Figure 4 For the utility model structure Figure 3 Enlarged schematic diagram of point A in the middle.

[0020] In the picture:

[0021] 1. Motor; 2. Support cylinder; 3. Support platform;

[0022] 4. Transmission assembly; 401. Moving block; 402. Sliding rod; 403. Moving rod; 404. Fixed block; 405. First transmission rod; 406. Push block; 407. First limiting column;

[0023] 5. Limiting assembly; 501. Sliding block; 502. Second transmission rod; 503. Baffle; 504. Roller; 505. Spring; 506. Second limiting column;

[0024] 6. Transmission ring; 7. Support block; 8. Pulley body. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-3, a pulley limiting device includes a motor 1, a pulley body 8 is mounted on the output shaft of the motor 1, a support cylinder 2 is fixedly connected to the output shaft of the motor 1, and the support cylinder 2 is fixedly connected to the support platform 3 at one end away from the pulley body 8. A transmission ring 6 is provided on the outer wall of the pulley body 8, and the support cylinder 2 and the transmission ring 6 are located between the pulley body 8 and the support platform 3, and the central axes of the pulley body 8, the transmission ring 6, the support cylinder 2 and the support platform 3 are located on the same straight line, and a transmission assembly 4 is provided between the transmission ring 6 and the support platform 3, and four transmission assemblies 4 are provided. The four transmission assemblies 4 are distributed in a circular array with the central axis of the support cylinder 2 as the center, and a limiting assembly 5 is provided on the four transmission assemblies 4, and four limiting assemblies 5 are provided;

[0027] The transmission assembly 4 includes a first limiting column 407 provided on the outer wall of the support platform 3, the outer wall of the first limiting column 407 is slidably connected to the moving block 401, the inner wall of the moving block 401 is fitted with the outer wall of the first limiting column 407, the outer wall of the moving block 401 is rotatably connected to the sliding rod 402, the end of the sliding rod 402 away from the moving block 401 is slidably connected to the moving rod 403, one end of the moving rod 403 is located inside the sliding rod 402, and a blocking block is provided inside the sliding rod 402, and the moving rod 403 The end away from the sliding rod 402 is rollingly connected to the fixed block 404, the outer wall of the moving rod 403 fits with the inner wall of the fixed block 404, the outer wall of the fixed block 404 is fixedly connected to the outer wall of the transmission ring 6, the outer wall of the moving block 401 is rotatably connected to the first transmission rod 405, and the end of the first transmission rod 405 away from the moving block 401 is rotatably connected to the push block 406, the outer wall of the push block 406 is slidably connected to the outer wall of the support cylinder 2, and the outer wall of the push block 406 fits with the outer wall of the pulley body 8;

[0028] When the angle of the pulley body 8 deviates, the transmission ring 6 deviates synchronously with the pulley body 8, and the fixed block 404 moves synchronously with the transmission ring 6. Since the fixed block 404 is rollingly connected to the moving rod 403, and the end of the moving rod 403 away from the fixed block 404 is slidably connected to the sliding rod 402, the fixed block 404 pushes the moving rod 403 to slide inside the sliding rod 402. Since a blocking block is provided inside the sliding rod 402, when the moving rod 403 moves to the blocking block, it pushes the sliding rod 402 to move. Since the end of the sliding rod 402 away from the moving rod 403 is rotatably connected to the moving block 401, and the moving block 401 is slidably connected to the first limit column 407, the sliding rod 402 pushes the moving block 401 to move downward. Since the pushing block 406 is slidably connected to the support cylinder 2, the moving block 401 applies a leftward force to the pushing block 406 through the first transmission rod 405, thereby causing the pushing block 406 to push the pulley body 8, thereby causing the offset angle of the pulley body 8 to return to normal.

[0029] Reference Figure 3 and Figure 4 When the pulley body 8 is shifted, the sliding rod 402 pushes the sliding block 501 to move, and the sliding block 501 pushes the baffle 503 through the second transmission rod 502 to rotate the connection between the baffle 503 and the transmission ring 6. When the moving rod 403 moves to the blocking block, the baffle 503 rotates to be parallel to the outer wall of the transmission ring 6, thereby limiting the belt inside the pulley body 8, preventing the belt from disengaging from the pulley body 8, thereby reducing the probability of injury to personnel caused by belt disengagement.

[0030] Reference Figure 3 and Figure 4 The inner wall of the moving rod 403 is fixedly connected with a spring 505, and one end of the spring 505 away from the inner wall of the moving rod 403 is fixedly connected to the outer wall of the sliding block 501. The second limiting column 506 is located inside the spring 505, and the center axis of the spring 505 and the center axis of the second limiting column 506 are located on the same straight line. When the offset angle of the pulley body 8 is restored to normal, the spring 505 pushes the sliding block 501 back to its original position.

[0031] Reference Figure 3 The outer wall of the baffle 503 is rotatably connected to a roller 504, and the roller 504 is located at the center of the outer wall of the end of the baffle 503 away from the transmission ring 6, so that the belt is in contact with the roller 504, thereby avoiding direct contact between the belt and the baffle 503 and preventing wear of the baffle 503.

[0032] Reference Figure 2 The outer wall of the pulley body 8 is fixedly connected with a support block 7, and there are four support blocks 7. The outer walls of the four support blocks 7 are in contact with the outer wall of the inner ring of the transmission ring 6, so that the support blocks 7 are supported by the four transmission rings 6 to prevent the support blocks 7 from shifting when the device is running.

[0033] Reference Figure 2 The central axes of the baffle 503, the fixing block 404 and the pushing block 406 are located in the same plane, thereby facilitating the improvement of the stability of the structure and forming a stable force-bearing system in the plane.

[0034] Working principle: When the angle of the pulley body 8 deviates, the transmission ring 6 deviates synchronously with the pulley body 8, and the fixed block 404 moves synchronously with the transmission ring 6. The fixed block 404 pushes the moving rod 403 to slide inside the sliding rod 402. Since a blocking block is provided inside the sliding rod 402, when the moving rod 403 moves to the blocking block, it pushes the sliding rod 402 to move. The sliding rod 402 pushes the moving block 401 to move toward the direction of the support cylinder 2. The moving block 401 applies a force toward the pulley body 8 to the push block 406 through the first transmission rod 405, so that the push block 406 06 pushes the pulley body 8, thereby correcting the offset angle of the pulley body 8. When the push block 406 cannot correct the offset angle of the pulley body 8, the sliding rod 402 pushes the sliding block 501 to move, and the sliding block 501 pushes the baffle 503 through the second transmission rod 502 to rotate the connection between the baffle 503 and the transmission ring 6. When the moving rod 403 moves to the blocking block, the baffle 503 rotates to be parallel to the outer wall of the transmission ring 6, thereby limiting the belt inside the pulley body 8, preventing the belt from detaching from the pulley body 8, and thereby reducing the probability of injury to personnel caused by belt detachment.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pulley limiting device, comprising a motor (1), characterized in that: A pulley body (8) is mounted on the output shaft of the motor (1), a support cylinder (2) is fixedly connected to the output shaft of the motor (1), an end of the support cylinder (2) away from the pulley body (8) is fixedly connected to a support platform (3), a transmission ring (6) is provided on the outer wall of the pulley body (8), a transmission assembly (4) is provided between the transmission ring (6) and the support platform (3), and a limit assembly (5) is provided on the transmission assembly (4); The transmission assembly (4) comprises a first limiting column (407) arranged on the outer wall of the support platform (3), the outer wall of the first limiting column (407) is slidably connected to a moving block (401), the outer wall of the moving block (401) is rotatably connected to a sliding rod (402), the end of the sliding rod (402) away from the moving block (401) is slidably connected to a moving rod (403), the end of the moving rod (403) away from the sliding rod (402) is rollingly connected to a fixed block (404), the outer wall of the fixed block (404) is fixedly connected to the outer wall of the transmission ring (6), the outer wall of the moving block (401) is rotatably connected to the first transmission rod (405), the end of the first transmission rod (405) away from the moving block (401) is rotatably connected to a push block (406), and the outer wall of the push block (406) is slidably connected to the outer wall of the support cylinder (2).

2. A pulley limiting device according to claim 1, characterized in that: The limiting assembly (5) comprises a second limiting column (506) fixedly connected to the inner side wall of the moving rod (403); the outer side wall of the second limiting column (506) is slidably connected to a sliding block (501); the outer side wall of the sliding block (501) is hinged to a second transmission rod (502); one end of the second transmission rod (502) away from the sliding block (501) is hinged to a baffle (503); one end of the baffle (503) is hinged to the outer side wall of the transmission ring (6).

3. A pulley limiting device according to claim 2, characterized in that: The inner side wall of the moving rod (403) is fixedly connected to a spring (505), and one end of the spring (505) away from the inner side wall of the moving rod (403) is fixedly connected to the outer side wall of the sliding block (501).

4. A pulley limiting device according to claim 3, characterized in that: The outer side wall of the baffle (503) is rotatably connected to a roller (504), and the roller (504) is located at the center of the outer side wall of one end of the baffle (503) away from the transmission ring (6).

5. A pulley limiting device according to claim 1, characterized in that: The outer side wall of the pulley body (8) is fixedly connected to a support block (7), and the outer side wall of the support block (7) is in contact with the outer side wall of the inner ring of the transmission ring (6).

6. A pulley limiting device according to claim 2, characterized in that: The central axes of the baffle (503), the fixing block (404) and the pushing block (406) are located in the same plane.

Images