Adjustable tensioning wheel

Abstract

The utility model provides an adjustable tensioning wheel, and belongs to the technical field of tensioning wheels. The problem that an existing tensioning wheel is poor in adjusting precision is solved. The adjustable tensioning wheel comprises a tensioning wheel body and a rack, an installation space is formed in the rack, a sliding rail is arranged in the installation space, a sliding block is arranged on the sliding rail, a first installation base is arranged at the front end of the rack, a second installation base is arranged on the sliding block, and a first connecting rod and a second connecting rod are arranged on the first installation base and the second installation base respectively. A mounting groove used for mounting the upper end of the first connecting rod is formed in the position, making contact with the first connecting rod, of the second connecting rod, a connecting shaft is arranged between the upper end of the second connecting rod and the upper end of the first connecting rod, a driving rod is arranged at the rear end of the rack, an inlet allowing the driving rod to stretch and retract is formed in the rear end of the rack, and the driving rod is composed of a lead screw and a push rod body. The adjusting device has the advantage of high adjusting precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensioner wheels and relates to a tensioner wheel, in particular to an adjustable tensioner wheel. Background Art

[0002] Automatic tensioners are used in automobile belt drive systems, or automobile engine gear trains, or Engine Front End Accessory Drive System (EFEADS). EFEADS is one of the key systems on the engine, consisting of a drive wheel (crankshaft wheel), several driven wheels, tensioners and drive belts. Its main function is to transmit part of the output power of the engine crankshaft to the engine accessories, such as fans, water pumps, generators and air conditioning compressors, through belts to ensure that the car can work normally. The automatic tensioner is a key part in the engine front end accessory drive system. Its basic function is to maintain the constant tension of the drive belt and prevent the belt from slipping. On this basis, it can also provide appropriate damping to attenuate the vibration in the accessory system and suppress belt shaking to maintain system stability and reduce vibration and noise.

[0003] According to the application number CN118224262A retrieved from the patent website, the patent name is an asymmetric damping automatic tensioner, which discloses an asymmetric damping automatic tensioner, which includes an assembly seat, a guide rail, a slider, a linear spring, a first articulated arm, a second articulated arm and a tensioning wheel. The guide rail is fixedly arranged on the assembly seat, and the slider is slidably arranged on the guide rail. A first articulated seat is arranged on the slider, one end of the first articulated arm is articulated to the first articulated seat, and the other end of the first articulated arm is articulated to the pivot of the tensioning wheel. A second articulated seat is arranged at the right end of the assembly seat, and the second articulated seat is arranged at the right end of the second articulated seat. One end of the connecting arm is hingedly connected to the second hinge seat, and the other end of the second hinge arm is hingedly connected to the pivot of the tensioning wheel. The linear spring is sleeved on the guide rail, and the linear spring is arranged on the side away from the second hinge seat. One end of the linear spring is against the slider, and the other end is against the left side surface of the assembly seat. A positioning locking piece is provided on the slider. The movement of the tensioner is controlled by pushing the slider or the locking handle when adjusting. Such a setting will make it difficult to control when adjusting the tensioning force, and the adjustment is troublesome. In addition, the locking handle needs to be rotated and twisted for fixing, which is more troublesome to use.

[0004] Most tensioners on the market have an adjustment function, but the adjustment accuracy is often poor, resulting in insufficient or excessive tensioning force after adjustment, affecting the operation of the machine, and it is also inconvenient to lock the tensioner after the adjustment is completed. Summary of the invention

[0005] The utility model aims to provide an adjustable tensioner wheel which is convenient to adjust in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an adjustable tensioner, comprising a tensioner and a frame, characterized in that an installation space is provided on the frame, a slide rail is provided in the installation space, a slider is provided on the slide rail, a mounting seat 1 is provided on the front end of the frame, a mounting seat 2 is provided on the slider, a connecting rod 1 and a connecting rod 2 are respectively provided on the mounting seat 1 and the mounting seat 2, a mounting groove for installing the upper end of the connecting rod 1 is provided on the connecting rod 2 and in contact with the connecting rod 1, a connecting shaft is provided between the upper end of the connecting rod 2 and the upper end of the connecting rod 1, a driving rod is provided at the rear end of the frame, an entrance for the driving rod to be telescopically entered is provided at the rear end of the frame, and the driving rod is composed of a screw rod and a push rod body.

[0007] In the above-mentioned adjustable tensioner, the front end of the push rod body is provided with a supporting portion, the outer diameter of the driving rod is sleeved with a shock absorbing spring, and the rear end of the driving rod is provided with a control hand wheel.

[0008] In the above-mentioned adjustable tensioner, the tensioner is arranged on the connecting shaft.

[0009] In the above-mentioned adjustable tensioner, the screw rod is connected to the push rod body through threads.

[0010] Compared with the prior art, the utility model uses a driving rod to push the slider to control the movement of the tensioning wheel to adjust the position of the tensioning wheel. The adjustment of the tensioning wheel position can be more precise by controlling the screw rod, and no other operations are required to fix it after adjustment, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0013] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0014] In the figure, 1. tensioning wheel; 2. frame; 3. installation space; 4. slide rail; 5. slider; 6. mounting seat 1; 7. mounting seat 2; 8. connecting rod 1; 9. connecting rod 2; 10. mounting groove; 11. connecting shaft; 12. driving rod; 13. entrance; 14. screw rod; 15. push rod body; 16. abutment part; 17. shock-absorbing spring; 18. control hand wheel. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 As shown, the adjustable tensioner comprises a tensioner 1 and a frame 2, the frame 2 is provided with an installation space 3, the installation space 3 is provided with a slide rail 4, the slide rail 4 is provided with a slider 5, the front end of the frame 2 is provided with a mounting seat 1 6, the slider 5 is provided with a mounting seat 2 7, the mounting seat 1 6 and the mounting seat 2 7 are respectively provided with a connecting rod 1 8 and a connecting rod 2 9, a mounting groove 10 for installing the upper end of the connecting rod 1 8 is provided on the connecting rod 2 9 and at the contact point with the connecting rod 1 8, a connecting shaft 11 is provided between the upper end of the connecting rod 2 9 and the upper end of the connecting rod 1 8, a driving rod 12 is provided at the rear end of the frame 2, and an entrance 13 for the driving rod 12 to telescope into is provided at the rear end of the frame 2, and the driving rod 12 is composed of a screw rod 14 and a push rod body 15.

[0017] To further elaborate, the front end of the push rod body 15 is provided with abutment 16, the outer diameter of the driving rod 12 is sleeved with a damping spring 17, and the rear end of the driving rod 12 is provided with a control hand wheel 18. The driving rod 12 is provided to push the slider 5 to control the movement of the tensioning wheel 1 to adjust the position of the tensioning wheel 1. The adjustment of the position of the tensioning wheel 1 can be more accurate by controlling the screw rod 14, and after adjustment, no other operations are required to achieve fixation, making it more convenient to use.

[0018] To be more specific, the tensioner 1 is arranged on the connecting shaft 11 .

[0019] To be more specific, the screw rod 14 is connected to the push rod body 15 via threads.

[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0021] Although the terms such as tensioner 1, frame 2, installation space 3, slide rail 4, slider 5, mounting seat 1 6, mounting seat 2 7, connecting rod 1 8, connecting rod 2 9, mounting groove 10, connecting shaft 11, driving rod 12, entry port 13, screw rod 14, push rod body 15, abutment portion 16, shock absorbing spring 17, control hand wheel 18 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An adjustable tensioner (1), comprising a tensioner (1) and a frame (2), characterized in that: The frame (2) is provided with an installation space (3), a slide rail (4) is provided in the installation space (3), a slider (5) is provided on the slide rail (4), a mounting seat 1 (6) is provided on the front end of the frame (2), a mounting seat 2 (7) is provided on the slider (5), a connecting rod 1 (8) and a connecting rod 2 (9) are provided on the mounting seat 1 (6) and the mounting seat 2 (7) respectively, a mounting groove (10) for mounting the upper end of the connecting rod 1 (8) is provided on the connecting rod 2 (9) and at a position where the connecting rod 1 (8) is in contact with the connecting rod 1 (8), a connecting shaft (11) is provided between the upper end of the connecting rod 2 (9) and the upper end of the connecting rod 1 (8), a driving rod (12) is provided at the rear end of the frame (2), an entrance (13) for the driving rod (12) to be telescopically entered is provided at the rear end of the frame (2), and the driving rod (12) is composed of a screw rod (14) and a push rod body (15).

2. The adjustable tensioner (1) according to claim 1, characterized in that: The front end of the push rod body (15) is provided with a supporting portion (16), the outer diameter of the driving rod (12) is sleeved with a shock absorbing spring (17), and the rear end of the driving rod (12) is provided with a control hand wheel (18).

3. The adjustable tensioner (1) according to claim 1, characterized in that: The tensioner wheel (1) is arranged on the connecting shaft (11).

4. The adjustable tensioner (1) according to claim 1, characterized in that: The screw rod (14) is connected to the push rod body (15) via threads.

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