One-way locking stable pressurizing tensioner

Abstract

The utility model relates to the technical field of tensioners, and discloses a one-way locking stable pressurizing tensioner which comprises a shell, an empty groove is formed in the other side of the shell, a spring seat spring is arranged at the front end of the inner wall of the empty groove, 4.0 small steel balls are arranged at the rear end of the spring seat spring, a spring seat shell is arranged on the outer wall of the spring seat spring, and the spring seat shell and the spring seat shell are connected through a bolt. Steel ball positioning pieces are arranged on the two sides of the front end of the spring seat shell, guide column gaskets are fixedly connected to the rear ends of the steel ball positioning pieces, spring ejector pins are fixedly connected to the rear ends of the guide column gaskets, guide columns are arranged on the inner walls of the empty grooves, and guide column springs are fixedly connected to the middles of the front ends of the guide columns. According to the tensioning device, the guide column spring, the small steel ball and the spring ejector pin are matched to generate and maintain constant high pressure, so that the tensioning force is stable, the operation stability of a system is improved, the influence of external fluctuation and temperature change is reduced, the spring ejector pin can be locked through the matching of the guide column core and the guide column whistle, and the tensioning device is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of tensioner technology, and in particular to a one-way locking stable pressure-boosting tensioner. Background Technology

[0002] In many mechanical devices, such as the valve train of automobile engines, the conveyor belt system of industrial machinery, and even some hydraulic or pneumatic systems, it is necessary to transmit power accurately and reliably or maintain the relative position between components. This usually relies on a tensioning system. A tensioner is a device widely used in mechanical transmission systems. Its main function is to maintain the appropriate tension of the transmission belt or chain during operation.

[0003] Traditional tensioners are easily affected by external load fluctuations or temperature changes, causing the tension to fluctuate and become inconsistent. Furthermore, the spring pins inside traditional tensioners may continue to move due to excessive impact, which is not conducive to protecting the drive chain / belt and may lead to excessive displacement and damage.

[0004] Therefore, those skilled in the art have provided a one-way locking stabilizing pressure-boosting tensioner to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a one-way locking stable pressure boosting tensioner. The cooperation of the guide post spring, small steel ball, and spring pin generates and maintains a constant high pressure, stabilizing the tension force, improving the smoothness of system operation, and reducing the impact of external fluctuations and temperature changes. The cooperation between the guide post core and the guide post whistle can lock the spring pin and prevent damage to the tensioner when the chain belt breaks, jams, or encounters a huge impact.

[0006] To achieve the above objectives, this utility model provides a one-way locking stabilizing pressure tensioner, comprising a housing, a slot on the other side of the housing, a spring seat spring at the front end of the inner wall of the slot, a 4.0 steel ball at the rear end of the spring seat spring, a spring seat housing on the outer wall of the spring seat spring, steel ball positioning plates on both sides of the front end of the spring seat housing, a guide post washer fixedly connected to the rear end of the steel ball positioning plate, a spring pin fixedly connected to the rear end of the guide post washer, a guide post on the inner wall of the slot, and a guide post spring fixedly connected to the middle of the front end of the guide post;

[0007] Through the above technical solution, the combination of guide post spring, 4.0 small steel ball and spring pin can generate and maintain a relatively constant high pressure. This pressure acts on the spring pin, making its output tension force more stable and less susceptible to external load fluctuations or temperature changes, thereby improving the smooth operation of the power transmission system.

[0008] Furthermore, a guide post whistle is fixedly connected to the front end of one side of the guide post, and a guide post core is connected to the other side of the guide post whistle;

[0009] Through the above technical solution, the cooperation between the guide post core and the guide post whistle plays the role of locking protection. When the chain belt breaks or jams, or needs to withstand impact loads far exceeding the normal working range, the spring pin is fixed in the current position, which can prevent the tensioner itself from being damaged due to excessive impact.

[0010] Furthermore, a sealing rubber gasket is fitted on the front end of the outer wall of the housing, and a sealing gasket is fitted on the outer wall of the sealing rubber gasket;

[0011] The above technical solutions can provide a more reliable sealing effect and reduce the risk of internal hydraulic medium leakage.

[0012] Furthermore, the guide post extends through the housing to the outside of the housing;

[0013] The above technical solution, through guidance, ensures that it remains straight during movement and avoids deflection, thereby ensuring the accurate application of tension.

[0014] Furthermore, a guide post positioning sleeve is provided at the rear of the inner wall of the slot, an O-ring is fitted on the outer wall of the guide post positioning sleeve, and a retaining spring is slidably provided on the guide post positioning sleeve;

[0015] Through the above technical solution, the guide post positioning sleeve can slide its surface, making the guide post slide more smoothly and accurately in the slot. The O-ring prevents the internal high-pressure medium from leaking out from the gap between the guide post and the slot, and the snap ring ensures that it will not loosen or fall off during the operation of the tensioner, thus ensuring the stable realization of the sealing function.

[0016] Furthermore, the guide post slides on the inner wall of the slot;

[0017] The above technical solutions make the entire device structure more compact.

[0018] Furthermore, the upper end of the spring pin is connected to one side of the lower end of the guide post core;

[0019] The above technical solution enables these two components to form a functional whole, ensuring the reliable execution of the locking function.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model proposes a one-way locking stable pressure boosting tensioner, which, through the cooperation of the guide post spring, 4.0 small steel ball and spring pin, can generate and maintain a relatively constant high pressure. This pressure acts on the spring pin, making its output tension force more stable and less susceptible to external load fluctuations or temperature changes, thereby improving the smooth operation of the power transmission system. The cooperation between the guide post core and the guide post whistle undertakes the locking protection function. When the chain belt breaks or jams, or needs to withstand impact loads far exceeding the normal operating range, the spring pin is fixed in the current position, which can prevent the tensioner itself from being damaged by excessive impact. Attached Figure Description

[0022] Figure 1 This is an isometric view of a one-way locking stabilizing pressure-boosting tensioner proposed in this utility model;

[0023] Figure 2 This is a top sectional view of a one-way locking stabilizing pressure-boosting tensioner proposed in this utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a side view of a one-way locking stabilizing pressure-boosting tensioner proposed in this utility model;

[0026] Figure 5 This is a partial side sectional view of a one-way locking stabilizing pressure-boosting tensioner proposed in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing; 2. Spring seat housing; 3. Steel ball positioning piece; 4. 4.0 small steel ball; 5. Spring seat spring; 6. Guide post washer; 7. Spring pin; 8. Sealing washer; 9. Sealing rubber washer; 10. Guide post whistle; 11. Guide post; 12. Guide post core; 13. Guide post spring; 14. Guide post positioning sleeve; 15. O-ring; 16. Snap ring; 17. Empty groove. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1 , Figure 2and Figure 3 This utility model provides a specific embodiment: a one-way locking stabilizing pressure-boosting tensioner, including a housing 1, a slot 17 on the other side of the housing 1, a spring seat spring 5 at the front end of the inner wall of the slot 17, a 4.0 small steel ball 4 at the rear end of the spring seat spring 5, a spring seat housing 2 on the outer wall of the spring seat spring 5, steel ball positioning plates 3 on both sides of the front end of the spring seat housing 2, a guide post pad 6 fixedly connected to the rear end of the steel ball positioning plate 3, a spring pin 7 fixedly connected to the rear end of the guide post pad 6, a guide post 11 on the inner wall of the slot 17, and a guide post spring 13 fixedly connected to the middle of the front end of the guide post 11;

[0031] Through the cooperation of the guide post spring 13, the 4.0 small steel ball 4 and the spring pin 7, a relatively constant high pressure can be generated and maintained. This pressure acts on the spring pin 7, making its output tension force more stable and less susceptible to external load fluctuations or temperature changes, thereby improving the smooth operation of the power transmission system.

[0032] Reference Figure 3 , Figure 4 and Figure 5 A guide post whistle 10 is fixedly connected to the front end of one side of the guide post 11, and a guide post core 12 is connected to the other side of the guide post whistle 10. The cooperation between the guide post core 12 and the guide post whistle 10 provides a locking protection function. When the chain belt breaks, jams, or needs to withstand impact loads far exceeding the normal operating range, the spring pin 7 is fixed in the current position, which can prevent the tensioner itself from being damaged due to excessive impact. A sealing rubber gasket 9 is fitted on the front end of the outer wall of the housing 1, and a sealing gasket 8 is fitted on the outer wall of the sealing rubber gasket 9, which can provide a more reliable sealing effect and reduce the risk of internal hydraulic medium leakage. The guide post 11 penetrates through the housing 1 to the outside of the housing 1, and through guidance, ensures that it remains straight during movement and avoids deflection, thereby ensuring the accurate application of tension force. A guide post positioning sleeve 14 is provided at the rear of the inner wall of the slot 17. An O-ring 15 is fitted on the outer wall of the guide post positioning sleeve 14. A retaining spring 16 is slidably provided on the guide post positioning sleeve 14. The guide post positioning sleeve 14 can slide, so that the guide post 11 slides more smoothly and accurately in the slot 17. The O-ring 15 prevents the internal high pressure medium from leaking out from the gap between the guide post 11 and the slot 17 by the spring and steel ball. The retaining spring 16 ensures that it will not loosen or fall off during the operation of the tensioner, ensuring the stable realization of the sealing function. The guide post 11 slides on the inner wall of the slot 17, making the entire device structure more compact. The upper end of the spring pin 7 is connected to one side of the lower end of the guide post core 12, so that the two components form a functional whole, ensuring the reliable execution of the locking function.

[0033] Working principle: In the initial state or without hydraulic pressure, the guide spring 13 is compressed, pushing the spring pin 7 and guide core 12 outward to provide basic tension. The O-ring 15 ensures the sealing of the hydraulic chamber. Subsequently, high-pressure oil generated by the booster unit enters, and the pressure overcomes the elasticity of the spring seat spring 5, pushing open the 4.0 small steel ball 4. It cooperates with the steel ball positioning piece 3 to form a temporary passage acting on the effective area of ​​the spring pin 7. In this way, the high-pressure oil can push the spring pin 7 to provide a larger and more stable tension than the guide spring 13, generating and maintaining a relatively constant high pressure. This pressure acts on the spring pin 7, making its externally output tension more stable and less susceptible to external load fluctuations or temperature changes, thereby improving the smooth operation of the power transmission system. When the internal hydraulic pressure reaches a certain threshold, the guide pin whistle 10 and guide core 12 are activated to form a mechanical locking state, fixing the spring pin 7 in the current position, which can prevent the tensioner itself from being damaged by excessive impact.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A one-way lock stabilizing tensioner comprising a housing (1), characterized in that: A slot (17) is provided on the other side of the housing (1). A spring seat spring (5) is provided at the front end of the inner wall of the slot (17). A 4.0 small steel ball (4) is provided at the rear end of the spring seat spring (5). A spring seat housing (2) is provided on the outer wall of the spring seat spring (5). Steel ball positioning pieces (3) are provided on both sides of the front end of the spring seat housing (2). A guide post washer (6) is fixedly connected to the rear end of the steel ball positioning piece (3). A spring pin (7) is fixedly connected to the rear end of the guide post washer (6). A guide post (11) is provided on the inner wall of the slot (17). A guide post spring (13) is fixedly connected to the middle of the front end of the guide post (11).

2. The one-way locking stabilizing pressure-boosting tensioner according to claim 1, characterized in that: A guide post whistle (10) is fixedly connected to the front end of one side of the guide post (11), and a guide post core (12) is connected to the other side of the guide post whistle (10).

3. A one-way locking stabilizing tensioner as in claim 1, wherein: A sealing rubber gasket (9) is fitted on the front end of the outer wall of the housing (1), and a sealing gasket (8) is fitted on the outer wall of the sealing rubber gasket (9).

4. A one-way locking stabilizing tensioner as in claim 1, wherein: The guide post (11) penetrates the housing (1) to the outside of the housing (1).

5. A one-way locking stabilizing tensioner as in claim 1, wherein: The rear part of the inner wall of the slot (17) is provided with a guide post positioning sleeve (14), the outer wall of the guide post positioning sleeve (14) is provided with an O-ring (15), and the guide post positioning sleeve (14) is slidably provided with a retaining spring (16).

6. The one-way locking stabilizing pressure-boosting tensioner according to claim 1, characterized in that: The guide post (11) slides on the inner wall of the slot (17).

7. A one-way locking stabilizing tensioner as in claim 1, wherein: The upper end of the spring pin (7) is connected to one side of the lower end of the guide post core (12).

Images