Novel width-adjustable tensioning wheel

Abstract

The utility model provides a novel width-adjustable tensioning wheel, and belongs to the technical field of tensioning wheels. The tensioning wheel solves the problem that an existing tensioning wheel is troublesome to replace. The novel width-adjustable tensioning wheel comprises a tensioning wheel body, the tensioning wheel body is composed of an adjusting gasket, a left body and a right body, an installation space is formed in the right body, a positioning groove is formed in the left body, an adjusting device is arranged between the installation space and the positioning groove, and the adjusting device is composed of a piston, a pressure spring and a plunger. A pressure separation layer is arranged in the plunger, an oil inlet hole is formed in the separation layer, a one-way valve is arranged between the piston and the plunger and opposite to the oil inlet hole, a first limiting part is arranged on the left body, and a second limiting part is arranged in the right body and opposite to the installation space. The limiting part divides the installation space into an oil pressure space and a moving space for the left body to move, and a damping spring is arranged between the first limiting part and the left body. The utility model has the advantages of practicability and convenience.

Description

Technical Field

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

[0002] In order to maintain proper belt tension, avoid belt slippage, and compensate for belt elongation caused by wear and aging during actual use, the tensioner requires a certain torque. When the belt tensioner is running, the moving belt may cause vibration in the tensioner, which will cause premature wear of the belt and tensioner. For this reason, a resistance mechanism is added to the tensioner. However, because there are many parameters that affect the torque and resistance of the tensioner, and the influence of each parameter is different, the relationship between the various components of the tensioner and the torque and resistance is very complicated. The change of torque directly affects the change of resistance, and it is the main influencing factor of resistance. The main factor affecting torque is the parameter of the torsion spring. Appropriately reducing the middle diameter of the torsion spring can increase the resistance value of the tensioner.

[0003] The existing tensioner can only be used for a single belt. When the belt is extended, it cannot be used normally, which easily causes the belt to detach from the tensioner. The tensioner can only be replaced, and the replacement time is long, the replacement is inconvenient, and the work efficiency is low. Summary of the invention

[0004] The purpose of the utility model is to provide a novel width-adjustable tensioner pulley which is convenient to use in view of the above-mentioned problems existing in the prior art.

[0005] The objectives of the utility model can be achieved through the following technical solutions: a novel width-adjustable tensioner, comprising a tensioner main body, characterized in that the tensioner main body is composed of an adjusting gasket, a left body and a right body, an installation space is provided on the right body, a positioning groove is provided on the left body, an adjusting device is arranged between the installation space and the positioning groove, the adjusting device is composed of a piston, a pressure spring and a plunger, a pressure separation layer is provided in the plunger, an oil inlet hole is provided on the separation layer, a one-way valve is arranged between the piston and the plunger and relative to the oil inlet hole, a limiting part 1 is provided on the left body, a limiting part 2 is provided in the right body and relative to the installation space, the limiting part divides the installation space into an oil pressure space and an activity space for the left body to move, and a shock-absorbing spring is arranged between the limiting part 1 and the left body.

[0006] In the above-mentioned novel width-adjustable tensioner, a limit spring is arranged on the piston, and an oil inlet groove is arranged inside the right body and at a position where it contacts the plunger.

[0007] In the above-mentioned novel width-adjustable tensioner, an oil filling hole connected to the oil pressure space is provided on the right body, and a plug is provided on the oil filling hole.

[0008] In the above-mentioned novel width-adjustable tensioner, the left body and the right body are respectively provided with a limiting portion 1 and a limiting portion 2, the limiting portion 1 and the left body are connected by threads, and the limiting portion 2 and the right body are integrally provided.

[0009] Compared with the prior art, the utility model injects oil into the oil pressure space through the oil filling hole and adjusts the width of the tensioner by using the arranged adjusting device, and then fills the gap after the width is increased by selecting a suitable adjusting gasket, making it more convenient to use without disassembling and replacing the tensioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0011] In the figure, 1. tensioner body; 2. adjusting gasket; 3. left body; 4. right body; 5. installation space; 6. positioning groove; 7. adjusting device; 8. piston; 9. pressure spring; 10. plunger; 11. pressure separation layer; 12. oil inlet hole; 13. one-way valve; 14. limit part 1; 15. limit part 2; 16. oil pressure space; 17. movable space; 18. shock-absorbing spring; 19. limit retaining spring; 20. oil inlet groove; 21. oil filling hole; 22. plug; 23. limit part 1; 24. limit part 2. DETAILED DESCRIPTION

[0012] 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.

[0013] like Figure 1As shown, the novel width-adjustable tensioner comprises a tensioner body 1, which is composed of an adjusting gasket 2, a left body 3 and a right body 4. An installation space 5 is provided on the right body 4, a positioning groove 6 is provided on the left body 3, an adjusting device 7 is provided between the installation space 5 and the positioning groove 6, and the adjusting device 7 is composed of a piston 8, a pressure spring 9 and a plunger 10. A pressure separation layer 11 is provided in the plunger 10, an oil inlet hole 12 is provided on the separation layer, a one-way valve 13 is provided between the piston 8 and the plunger 10 and relative to the oil inlet hole 12, and the left body 3 is provided with a limiting portion 14, and a limiting portion 2 15 is provided in the right body 4 and relative to the installation space 5. The limiting portion divides the installation space 5 into an oil pressure space 16 and an activity space 17 for the left body 3 to move. A shock absorbing spring 18 is provided between the limiting portion 14 and the left body 3. Oil is injected into the oil pressure space 16 through the oil filling hole 21 and the width of the tensioner is adjusted with the provided adjusting device 7. Then, the gap after the width is enlarged is filled by selecting a suitable adjusting gasket 2, so that it is more convenient to use without disassembling and replacing the tensioner.

[0014] To be more specific, a limit spring 19 is provided on the piston 8 , and an oil inlet groove 20 is provided inside the right body 4 at a position in contact with the plunger 10 .

[0015] To be more specific, the right body 4 is provided with an oil filling hole 21 connected to the oil pressure space 16 , and a plug 22 is provided on the oil filling hole 21 .

[0016] To further elaborate, the left body 3 and the right body 4 are respectively provided with a limiting portion 1 23 and a limiting portion 24 , the limiting portion 1 23 and the left body 3 are connected by threads, and the limiting portion 24 and the right body 4 are integrally provided.

[0017] 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.

[0018] Although the tensioner body 1, adjusting gasket 2, left body 3, right body 4, installation space 5, positioning groove 6, adjusting device 7, piston 8, pressure spring 9, plunger 10, pressure separation layer 11, oil inlet hole 12, one-way valve 13, limit part 1 14, limit part 2 15, oil pressure space 16, activity space 17, shock absorbing spring 18, limit spring 19, oil inlet groove 20, oil filling hole 21, plug 22, limit part 1 23, limit part 2 24 and other terms 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. A novel width-adjustable tensioner pulley, comprising a tensioner pulley body (1), characterized in that: The tensioner body (1) is composed of an adjusting gasket (2), a left body (3) and a right body (4); an installation space (5) is provided on the right body (4); a positioning groove (6) is provided on the left body (3); an adjusting device (7) is provided between the installation space (5) and the positioning groove (6); the adjusting device (7) is composed of a piston (8), a pressure spring (9) and a plunger (10); a pressure separation layer (11) is provided in the plunger (10); and an oil inlet hole (12) is provided on the separation layer. A one-way valve (13) is provided between the piston (8) and the plunger (10) and relative to the oil inlet hole (12); a limiting portion (14) is provided on the left body (3); a limiting portion (15) is provided in the right body (4) and relative to the installation space (5); the limiting portion divides the installation space (5) into an oil pressure space (16) and a movable space (17) for the left body (3) to move; and a shock-absorbing spring (18) is provided between the limiting portion (14) and the left body (3).

2. A novel width-adjustable tensioner pulley according to claim 1, characterized in that: A limit clamping spring (19) is provided on the piston (8), and an oil inlet groove (20) is provided inside the right body (4) at a position where the right body (4) contacts the plunger (10).

3. The novel width-adjustable tensioner pulley according to claim 1 is characterized in that: The right body (4) is provided with an oil filling hole (21) connected to the oil pressure space (16), and a plug (22) is provided on the oil filling hole (21).

4. The novel width-adjustable tensioner pulley according to claim 1 is characterized in that: The left body (3) and the right body (4) are respectively provided with a limiting portion 1 (23) and a limiting portion 2 (24); the limiting portion 1 (23) and the left body (3) are connected via threads, and the limiting portion 2 (24) and the right body (4) are integrally provided.

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