Chain tension adjusting device

Abstract

The utility model discloses a chain tensioning degree adjusting device relates to chain adjusting technical field, the installation cover one side is equipped with the sliding slot, and the installation cover is connected with the two -way screw rod through the support and bearing rotation, two -way screw rod both sides are all connected with the first screw bushing of screwing, first screw bushing one side is all fixedly connected with the sliding block, and the sliding block is connected in the sliding slot, and the first screw bushing is all fixedly connected with the connecting rod at the end away from the support, and the connecting rod is all fixedly connected with the mounting bracket through the connecting hole, and the mounting bracket is all connected with the adjusting wheel through the bearing rotation, the utility model has the beneficial effects that: through two -way screw rod and first screw bushing drive connecting rod and adjusting wheel remove, according to the different moving distance pressure to chain ring, need not to disassemble the condition to carry out the regulation fast, increase the overall efficiency of regulation, and the screw rod and second screw bushing are convenient to move, and according to the different situation of chain ring, use the cleaning round brush of different size to clean the chain ring.

Description

Technical Field

[0001] This utility model relates to the field of chain adjustment technology, specifically a chain tension adjustment device. Background Technology

[0002] In mechanical equipment that uses chains for power transmission, chain tension is crucial for the normal operation of the equipment. Traditional chain tension adjustment methods have many shortcomings. Some simple adjustment devices rely on manual disassembly and assembly of the chain, resulting in low adjustment accuracy and difficulty in accurately controlling the chain tension. Furthermore, during equipment operation, factors such as vibration can cause the tension to change again. In addition, some adjustment devices have complex structures, high manufacturing costs, and are difficult to install and maintain, making them unsuitable for widespread application in actual production. Moreover, there is no suitable cleaning structure for the chain during operation, leading to a large amount of oil and grease buildup later on. Utility Model Content

[0003] The purpose of this invention is to provide a chain tension adjustment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a chain tension adjustment device, comprising a mounting cover with movable holes at both ends, rotating rods rotatably connected to the inner walls of both sides of the mounting cover via bearings, sprockets fixedly connected to the walls of the rotating rods, one of the rotating rods passing through the mounting cover and fixedly connected to a drive motor, and the sprockets jointly driving the chain ring, a sliding groove being formed on one side of the mounting cover, and a bidirectional lead screw being rotatably connected to the mounting cover via a bracket and bearings, a first threaded sleeve being threaded to both sides of the bidirectional lead screw, a slider being fixedly connected to one side of each first threaded sleeve, the slider being slidably connected in the sliding groove, a connecting rod being fixedly connected to the end of each first threaded sleeve away from the bracket, and a mounting frame being fixedly connected to the connecting rod through a connecting hole, with an adjusting wheel rotatably connected to the mounting frame via bearings.

[0005] Preferably, a screw is fixedly connected to the inner wall of the middle part of the mounting cover, and a second screw sleeve is threadedly connected to the wall of the screw. Different sized cleaning brushes are fixedly connected to both sides of the second screw sleeve.

[0006] Preferably, the drive motor is fixedly connected to the outer wall of the mounting cover on the side away from the sprocket via a bracket.

[0007] Preferably, the connecting rod is U-shaped and fixedly connected to the first threaded sleeve.

[0008] Compared with the prior art, the beneficial effects of this utility model are: by setting a bidirectional lead screw and a first screw sleeve to drive the connecting rod and adjusting wheel to move, the chain ring can be pressed according to different moving distances, and the adjustment can be made quickly without disassembly, increasing the overall efficiency of adjustment. At the same time, the screw and the second screw sleeve facilitate movement, and different sized cleaning brushes can be used to clean the chain ring according to different conditions. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0011] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0012] Figure 4 This is a schematic diagram of the connection structure between the screw and the cleaning brush in this utility model;

[0013] Figure 5 This is a schematic diagram of the connection structure between the first screw sleeve and the adjusting wheel in this utility model.

[0014] In the diagram: 1. Mounting cover; 2. Rotating rod; 3. Sprocket; 4. Drive motor; 5. Chain ring; 6. Slide groove; 7. Double-acting lead screw; 8. First threaded sleeve; 9. Slider; 10. Connecting rod; 11. Mounting bracket; 12. Adjusting wheel; 13. Screw; 14. Second threaded sleeve; 15. Cleaning round brush. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 This utility model provides a technical solution:

[0017] Example 1: A chain tension adjustment device includes a mounting cover 1 with through-holes at both ends. The inner walls of both sides of the mounting cover 1 are rotatably connected to rotating rods 2 via bearings. The rod walls of the rotating rods 2 are fixedly connected to sprockets 3. One of the rotating rods 2 passes through the mounting cover 1 and is fixedly connected to a drive motor 4. The sprockets 3 are connected to the chain ring 5 for transmission. The drive motor 4 is fixedly connected to the outer wall of the mounting cover 1 on the side away from the sprockets 3 via a bracket.

[0018] When using the chain ring 5, the drive motor 4 is started by connecting an external power source. The output of the drive motor 4 drives the rotating rod 2 to rotate through the bearing. When the rotating rod 2 rotates, it synchronously drives the sprocket 3 to rotate. The sprocket 3 will drive the chain ring 5 to rotate, making it convenient for operation.

[0019] Example 2: The technical solution of this example, which differs from that of Example 1, includes: a groove 6 is opened on one side of the mounting cover 1, and the mounting cover 1 is rotatably connected to a bidirectional lead screw 7 through a bracket and bearings. Both sides of the bidirectional lead screw 7 are threadedly connected to a first threaded sleeve 8. One side of the first threaded sleeve 8 is fixedly connected to a slider 9, which is slidably connected in the groove 6. The end of the first threaded sleeve 8 away from the bracket is fixedly connected to a connecting rod 10. The connecting rod 10 is U-shaped and fixedly connected to the first threaded sleeve 8. The connecting rod 10 passes through the connecting hole and is fixedly connected to a mounting bracket 11. The mounting bracket 11 is rotatably connected to an adjusting wheel 12 through a bearing. A screw 13 is fixedly connected to the inner wall of the middle part of the mounting cover 1. The wall of the screw 13 is threadedly connected to a second threaded sleeve 14. Different sized cleaning round brushes 15 are fixedly connected to both sides of the second threaded sleeve 14.

[0020] When adjusting the chain, an external tool drives the bidirectional lead screw 7 to rotate. Simultaneously, the bidirectional lead screw 7 rotates, driving the first threaded sleeve 8. The first threaded sleeve 8 moves in the opposite direction on the wall of the bidirectional lead screw 7 under the sliding limit action of the sliding groove 6 and the slider 9. Simultaneously, the movement of the first threaded sleeve 8 drives the connecting rod 10 to move through the moving hole. The movement of the connecting rod 10 drives the mounting bracket 11 to move until the adjusting wheel 12 inside the mounting bracket 11 contacts the chain ring 5 for adjustment. At the same time, the second threaded sleeve 14 is rotated according to the adjustment of the chain ring 5. The second threaded sleeve 14 drives the cleaning brush 15 to move on the wall of the screw 13, thereby selecting the appropriate cleaning brush 15 to clean the chain ring 5.

[0021] 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 chain tension adjustment device, comprising a mounting cover (1) with through-holes at both ends, wherein rotating rods (2) are rotatably connected to the inner walls of both sides of the mounting cover (1) via bearings, and sprockets (3) are fixedly connected to the walls of the rotating rods (2), wherein one of the rotating rods (2) passes through the mounting cover (1) and is fixedly connected to a drive motor (4), and the sprockets (3) are jointly connected to a chain ring (5), characterized in that: The mounting cover (1) has a groove (6) on one side, and the mounting cover (1) is rotatably connected to a two-way screw rod (7) through a bracket and a bearing. Both sides of the two-way screw rod (7) are threaded with a first screw sleeve (8). One side of the first screw sleeve (8) is fixedly connected to a slider (9). The slider (9) is slidably connected in the groove (6). The end of the first screw sleeve (8) away from the bracket is fixedly connected to a connecting rod (10). The connecting rod (10) passes through the connecting hole and is fixedly connected to a mounting frame (11). The mounting frame (11) is rotatably connected to an adjusting wheel (12) through a bearing.

2. The chain tension adjusting device according to claim 1, characterized in that: A screw (13) is fixedly connected to the inner wall of the middle part of the mounting cover (1). The screw (13) is threadedly connected to a second screw sleeve (14). Different sizes of cleaning round brushes (15) are fixedly connected to both sides of the second screw sleeve (14).

3. The chain tension adjustment device according to claim 1, characterized in that: The drive motor (4) is fixedly connected to the outer wall of the mounting cover (1) on the side away from the sprocket (3) by a bracket.

4. The chain tension adjusting device according to claim 1, characterized in that: The connecting rod (10) is U-shaped and fixedly connected to the first threaded sleeve (8).

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