A tensioner and lubrication structure

Abstract

This utility model relates to the technical field of automotive tensioner accessories, and discloses a tensioner and lubrication structure, including a bracket. A lower guide rail is fitted onto one bottom side of the bracket. A locating pin is welded to one side of the bracket below one end of the lower guide rail, and the welding point between the locating pin and the bracket is not higher than the plane of the bracket. The lower guide rail is sleeved on the outer end of the locating pin. A baffle is integrally provided on one bottom side of the bracket. In this utility model, the lower guide rail is first sleeved on the outer end of the locating pin. The other end of the lower guide rail is limited by the baffle and the pin. A spring plate is fitted onto the bottom end of the lower guide rail, and the end of the spring plate away from the locating pin is connected to the pin. When the pin moves within the fixing groove of the baffle, the spring plate bends to buffer the pin, facilitating tensioning operations. The oil injection hole is designed on one side of the groove formed by the lower guide rail and the bracket, making it convenient to inject lubricating oil into the lower guide rail.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive tensioner accessories, and in particular to a tensioner and lubrication structure. Background Technology

[0002] With the continuous advancement of automotive technology and industrial development, timing belts in some engines have been replaced by timing chains. Timing chains typically require tensioners during operation to prevent them from becoming too loose or too long over time, thus reducing engine noise and improving engine accuracy and lifespan. Most existing tensioners are independent, and after prolonged use, significant friction can accumulate in the chain within the guide rails, easily leading to chain wear and breakage.

[0003] Therefore, those skilled in the art have provided a tensioner and a lubrication structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tensioner and lubrication structure. Firstly, a lower guide rail is fitted onto the outer end of a positioning pin. The other end of the lower guide rail is limited by a baffle and a pin. A spring plate is secured at the bottom of the lower guide rail, with the end of the spring plate away from the positioning pin connected to the pin. When the pin moves within the fixed groove of the baffle, the spring plate bends, thus buffering the pin and facilitating tensioning. An oil injection hole is designed on one side of the groove formed by the lower guide rail and the bracket, allowing for easy injection of lubricating oil into the lower guide rail, improving its lubrication. This combined design solves the problem that most existing tensioners are independent, and after prolonged use, the chain in the guide rail experiences significant friction, easily leading to chain wear and breakage.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tensioner and lubrication structure includes a bracket, a lower guide rail is fitted at one bottom side of the bracket, a locating pin is welded to one side of the bracket below one end of the lower guide rail, and the welding point between the locating pin and the bracket is not higher than the plane of the bracket, the lower guide rail is sleeved on the outer end of the locating pin, a baffle is integrally provided at one bottom side of the bracket, a pin is installed on one side of the baffle, a spring plate is fitted at the bottom end of the lower guide rail, and an oil injection hole is opened at one bottom side of the bracket.

[0007] The above technical solution involves first fitting a lower guide rail onto the outer end of the positioning pin. The other end of the lower guide rail is limited by a baffle and a pin. A spring plate is fitted at the bottom of the lower guide rail, and the end of the spring plate away from the positioning pin is connected to the pin. When the pin moves within the fixed groove of the baffle, the spring plate bends to buffer the pin, facilitating tensioning. The oil injection hole is designed on one side of the groove formed by the lower guide rail and the bracket, making it convenient to inject lubricating oil into the lower guide rail and improve its lubrication.

[0008] Furthermore, positioning sleeves are press-fitted at both ends of one side of the bracket, and positioning plates are welded to one side of the bracket;

[0009] With the above technical solution, positioning sleeves are press-fitted at both ends on one side of the bracket, and positioning plates are welded to one side of the bracket to facilitate combination with other components.

[0010] Furthermore, a washer skeleton is press-fitted into the middle of the positioning piece, and a rubber washer is fitted inside the washer skeleton;

[0011] The above technical solution allows for the installation of a gasket skeleton in the middle of the positioning plate, facilitating the installation of rubber gaskets. The rubber gasket is also secured inside the gasket skeleton to ensure a tight seal.

[0012] Furthermore, one end of the pin is inserted into the interior of one end of the spring sheet, and a movable groove is provided in the middle of the baffle;

[0013] With the above technical solution, one end of the pin is inserted into the inside of one end of the spring plate, which facilitates the connection between the pin and the spring plate. The middle part of the baffle has a movable groove to facilitate the movement of the pin.

[0014] Furthermore, an upper guide rail is inserted into the top of the bracket, and both the upper and lower guide rails are made of polyvinyl chloride material;

[0015] Through the above technical solution, an upper guide rail is inserted at the top of the bracket to facilitate the combination of the bracket with other components. Both the upper and lower guide rails are made of polyvinyl chloride material.

[0016] This utility model has the following beneficial effects:

[0017] 1. The tensioner and lubrication structure proposed in this utility model firstly includes a lower guide rail fitted onto the outer end of a positioning pin. The other end of the lower guide rail is limited by a baffle and a pin. A spring plate is clamped at the bottom of the lower guide rail, and the end of the spring plate away from the positioning pin is connected to the pin. When the pin moves within the fixed groove of the baffle, the spring plate bends to buffer the pin, facilitating tensioning operations. The oil injection hole is designed on one side of the groove formed by the lower guide rail and the bracket, making it convenient to inject lubricating oil into the lower guide rail and improve its lubrication. The above-mentioned combined design solves the problem that most existing tensioners are independent, and after long-term use, the chain in the guide rail will have large friction, which easily leads to chain wear and breakage. Attached Figure Description

[0018] Figure 1 This is an isometric view of a tensioner and lubrication structure proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a tensioner and lubrication structure proposed in this utility model;

[0020] Figure 3 This is a front view of a support for a tensioner and lubrication structure proposed in this utility model;

[0021] Figure 4 This is a top view of a support for a tensioner and lubrication structure proposed in this utility model.

[0022] Legend:

[0023] 1. Bracket; 2. Upper guide rail; 3. Positioning sleeve; 4. Positioning piece; 5. Rubber washer; 6. Washer skeleton; 7. Spring plate; 8. Lower guide rail; 9. Positioning pin; 10. Pin; 11. Oil injection hole; 12. Baffle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Reference Figure 1-4This utility model provides an embodiment of a tensioner and lubrication structure, including a bracket 1. A lower guide rail 8 is fitted onto one bottom side of the bracket 1. A positioning pin 9 is welded to one side of the bracket 1 below one end of the lower guide rail 8, and the welding point between the positioning pin 9 and the bracket 1 is not higher than the plane of the bracket 1. The lower guide rail 8 is sleeved on the outer end of the positioning pin 9. A baffle 12 is integrally provided on one bottom side of the bracket 1. A pin 10 is installed on one side of the baffle 12. A spring plate 7 is fitted onto the bottom end of the lower guide rail 8. An oil injection hole 11 is opened on one bottom side of the bracket 1. First, the positioning pin... The lower guide rail 8 is fitted onto the outer end of the 9. The other end of the lower guide rail 8 is limited by the baffle 12 and the pin 10. The bottom end of the lower guide rail 8 is fitted with a spring plate 7. The end of the spring plate 7 away from the positioning pin 9 is connected to the pin 10. When the pin 10 moves within the fixed groove of the baffle 12, the spring plate 7 will bend to buffer the pin 10, which facilitates the tensioning operation. The oil injection hole 11 is designed on one side of the groove formed by the lower guide rail 8 and the bracket 1, which facilitates the injection of lubricating oil into the position of the lower guide rail 8 and improves the lubrication of the guide rail.

[0026] Positioning sleeves 3 are press-fitted at both ends of one side of bracket 1. Positioning pieces 4 are welded to one side of bracket 1. Positioning sleeves 3 are press-fitted at both ends of one side of bracket 1. Positioning pieces 4 are welded to one side of bracket 1 to facilitate connection with other components. A washer skeleton 6 is press-fitted in the middle of the positioning piece 4. A rubber washer 5 is fitted inside the washer skeleton 6. The washer skeleton 6 facilitates the installation of the rubber washer 5. The rubber washer 5 fitted inside the washer skeleton 6 ensures a tight seal. Pin 10... One end of the pin 10 is inserted into the interior of one end of the spring plate 7. A movable groove is provided in the middle of the baffle 12. One end of the pin 10 is inserted into the interior of one end of the spring plate 7 to facilitate the connection between the pin 10 and the spring plate 7. A movable groove is provided in the middle of the baffle 12 to facilitate the movement of the pin 10. An upper guide rail 2 is inserted into the top of the bracket 1. Both the upper guide rail 2 and the lower guide rail 8 are made of polyvinyl chloride. The upper guide rail 2 is inserted into the top of the bracket 1 to facilitate the combination of the bracket 1 with other components. Both the upper guide rail 2 and the lower guide rail 8 are made of polyvinyl chloride.

[0027] Working principle: First, a lower guide rail 8 is fitted onto the outer end of the positioning pin 9. The other end of the lower guide rail 8 is limited by a baffle 12 and a pin 10. A spring plate 7 is clamped at the bottom of the lower guide rail 8, and the end of the spring plate 7 away from the positioning pin 9 is connected to the pin 10. When the pin 10 moves within the fixed groove of the baffle 12, the spring plate 7 will bend to buffer the pin 10, facilitating tensioning. The oil injection hole 11 is designed on one side of the groove formed by the lower guide rail 8 and the bracket 1, which facilitates the injection of lubricating oil into the position of the lower guide rail 8, improving the lubrication of the guide rail. The above combined design solves the defect that most existing tensioners are independent, and after long-term use, the chain in the guide rail will have large friction, which easily leads to chain wear and breakage.

[0028] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 tensioner and lubrication structure comprising a bracket (1), characterized in that: The bracket (1) has a lower guide rail (8) attached to one side of its bottom end. A positioning pin (9) is welded to one side of the bracket (1) below the lower guide rail (8). The welding point between the positioning pin (9) and the bracket (1) is not higher than the plane of the bracket (1). The lower guide rail (8) is sleeved on the outer end of the positioning pin (9). A baffle (12) is integrally provided on one side of the bottom end of the bracket (1). A pin (10) is installed on one side of the baffle (12). A spring sheet (7) is attached to the bottom end of the lower guide rail (8). An oil injection hole (11) is opened on one side of the bottom end of the bracket (1).

2. The tensioner and lubrication structure according to claim 1, characterized in that: Positioning sleeves (3) are press-fitted at both ends of one side of the bracket (1), and positioning pieces (4) are welded to one side of the bracket (1).

3. The tensioner and lubrication structure according to claim 2, characterized in that: The positioning piece (4) is press-fitted with a washer skeleton (6) in the middle, and a rubber washer (5) is inserted inside the washer skeleton (6).

4. The tensioner and lubrication structure according to claim 1, characterized in that: One end of the pin (10) is inserted into the interior of one end of the spring sheet (7), and the baffle (12) has a movable groove in the middle.

5. The tensioner and lubrication structure according to claim 1, characterized in that: The top of the bracket (1) is provided with an upper guide rail (2), and both the upper guide rail (2) and the lower guide rail (8) are made of polyvinyl chloride material.

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