Guide rail support capable of being lubricated

Abstract

A guide rail pair is arranged on the guide rail support, a plurality of lubricating through holes are formed in the guide rail pair, a lubricating oil flow channel is arranged on the guide rail support, the lubricating oil flow channel is communicated with the lubricating through holes, an opening in one end of the lubricating oil flow channel corresponds to a tensioner, and the other end of the lubricating oil flow channel is communicated with the lubricating through holes. The lubricating effect between the chain and the guide rail pair is guaranteed through the multiple lubricating through holes, and the lubricating reliability and stability of the timing system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and more specifically relates to a lubricable guide rail bracket. Background Art

[0002] As shown in Figure 6 , a tensioning mechanism is provided on the slack side of the timing chain, including a guide rail bracket and a tensioner. The slack side of the chain passes through the guide rail bracket from bottom to top. A guide rail pair is provided on the side of the guide rail bracket in contact with the chain. In order to reduce friction, an existing guide rail pair is provided with a lubricating groove near the tensioner at its upper end. Lubricating oil is discharged from the lubricating groove and can adhere to the contact surface between the chain and the guide rail pair to reduce friction.

[0003] The lubricating groove on the guide rail pair needs to be connected to the lubricating oil inlet and outlet by an additional pipeline, which reduces the reliability and stability of the timing system. Moreover, since the lubricating groove is at the upper end of the guide rail pair, the entire contact surface on the guide rail pair cannot be lubricated in time. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a lubricable guide rail bracket, which is provided with a plurality of lubricating through holes on the guide rail pair to ensure the lubricating effect between the chain and the guide rail pair and improve the reliability and stability of the lubrication of the timing system.

[0005] To achieve the above object, the utility model provides the following technical solution: A lubricable guide rail bracket, on which a guide rail pair is provided. The guide rail pair is provided with a plurality of lubricating through holes. A lubricating oil flow channel is provided on the guide rail bracket, and the lubricating oil flow channel communicates with the lubricating through holes. One end opening of the lubricating oil flow channel corresponds to the tensioner.

[0006] Further, a lubricating groove is provided on the contact surface of the guide rail pair on one side of the lubricating through hole. The lubricating groove communicates with the lubricating through hole, and the lubricating groove is located on the opposite side of the lubricating through hole and the moving direction of the timing chain.

[0007] Further, the lubricating groove is a V-shaped groove, and the bottom end of the V-shaped groove is connected to the lubricating through hole.

[0008] Further, the bottom surface of the V-shaped groove is inclined, and the distance between the bottom end of the V-shaped groove and the contact surface of the guide rail pair is greater than the two ends of the V-shaped groove.

[0009] Further, the lubricating oil flow channel includes an oil inlet flow channel and an oil outlet flow channel. The oil inlet flow channel and the oil outlet flow channel communicate with each other. The oil inlet flow channel is located at one end of the oil outlet flow channel. One side of the oil outlet flow channel extends to the surface of the guide rail bracket, and the lubricating through hole communicates with the oil outlet flow channel.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The tensioner is located at the end of one side of the guide rail bracket, and an oil injection port for engine oil is provided at the end of the tensioner to relieve the oil pressure inside the tensioner. Since one end opening of the lubricating oil flow channel corresponds to the tensioner, when the engine oil is ejected from the injection port of the tensioner, the engine oil can be directly ejected into the lubricating oil flow channel, and then the engine oil is guided through the lubricating oil flow channel to a number of lubricating oil through holes, so as to lubricate the timing chain at different positions on the contact surface of the guide rail pair through a plurality of lubricating through holes on the guide rail pair, increasing the reliability and stability of the lubrication of the timing system, and the plurality of lubricating through holes can lubricate the entire contact surface of the guide rail pair in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 FIG. is a front structural schematic diagram of the lubricable guide rail bracket of the present utility model;

[0012] Figure 2 FIG. is a back structural schematic diagram of the lubricable guide rail bracket of the present utility model;

[0013] Figure 3 FIG. is a structural schematic diagram of the guide rail bracket in the lubricable guide rail bracket of the present utility model;

[0014] Figure 4 FIG. is a structural schematic diagram of the guide rail pair in the lubricable guide rail bracket of the present utility model;

[0015] Figure 5 FIG. is a side sectional structural schematic diagram of the lubricable guide rail bracket of the present utility model;

[0016] Figure 6 FIG. is a schematic diagram of a timing chain tensioning system in the prior art.

[0017] Reference numerals: guide rail bracket 1; guide rail pair 2; lubricating through hole 3; lubricating oil flow channel 4; tensioner 5; chain 6; lubricating groove 7; oil inlet flow channel 8; oil outlet flow channel 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the description of the present utility model, it should be noted that for orientation terms, if there are terms such as "center", "horizontal (X)", "vertical (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0019] In addition, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0020] Refer to Figures 1 to 6 for further description of the present utility model.

[0021] A lubricable guide rail bracket, on which a guide rail pair 2 is provided, on which a plurality of lubrication through holes 3 are provided, on which a lubricating oil flow channel 4 is provided, the lubricating oil flow channel 4 communicating with the lubrication through holes 3, and one end opening of the lubricating oil flow channel 4 corresponding to a tensioner 5.

[0022] As Figures 1 to 6 shown, the tensioner 5 is located at the end of one side of the guide rail bracket 1, and an oil injection port is provided at the end of the tensioner 5 to relieve the oil pressure inside the tensioner 5. Since one end opening of the lubricating oil flow channel 4 corresponds to the tensioner 5, when the oil is ejected from the injection port of the tensioner 5, the oil can be directly ejected into the lubricating oil flow channel 4, and then the oil is guided through the lubricating oil flow channel 4 to several lubrication through holes, so as to lubricate the timing chain 6 at different positions of the contact surface of the guide rail pair 2 through the plurality of lubrication through holes 3 on the guide rail pair 2, increasing the reliability and stability of the lubrication of the timing system, and the plurality of lubrication through holes 3 can lubricate the entire contact surface of the guide rail pair 2 in a timely manner.

[0023] As Figure 1 shown, preferably in this embodiment, a lubrication groove 7 is provided on the contact surface of the guide rail pair 2 on one side of the lubrication through hole 3, the lubrication groove 7 communicating with the lubrication through hole 3, and the lubrication groove 7 is located on the opposite side of the lubrication through hole 3 to the moving direction of the timing chain 6, increasing the lubrication area through the lubrication groove 7.

[0024] As Figure 1 shown, preferably in this embodiment, the lubrication groove 7 is a V-shaped groove, the bottom end of the V-shaped groove connecting to the lubrication through hole 3, and the two ends of the V-shaped groove can disperse the oil.

[0025] As Figure 1 shown, preferably in this embodiment, the bottom surface of the V-shaped groove is inclined, and the distance between the bottom end of the V-shaped groove and the contact surface of the guide rail pair 2 is greater than the two ends of the V-shaped groove.

[0026] As Figure 1As shown, preferably in this embodiment, the lubricating oil flow passage 4 includes an oil inlet flow passage 8 and an oil outlet flow passage 9. The oil inlet flow passage 8 and the oil outlet flow passage 9 are connected. The oil inlet flow passage 8 is located at one end of the oil outlet flow passage 9. One side of the oil outlet flow passage 9 extends to the surface of the guide rail bracket 1. The lubricating through hole 3 is connected to the oil outlet flow passage 9.

[0027] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A lubricable guide rail bracket, characterized in that: A guide rail pair is provided on the guide rail bracket, a plurality of lubrication through holes are provided on the guide rail pair, a lubricating oil flow channel is provided on the guide rail bracket, the lubricating oil flow channel communicates with the lubrication through holes, and one end opening of the lubricating oil flow channel corresponds to the tensioner; A lubrication groove is provided on the contact surface of the guide rail pair on one side of the lubrication through hole, the lubrication groove communicates with the lubrication through hole, and the lubrication groove is located on the opposite side of the lubrication through hole and the moving direction of the timing chain.

2. The lubricable guide rail bracket according to claim 1, characterized in that: The lubrication groove is a V-shaped groove, and the bottom end of the V-shaped groove is connected to the lubrication through hole.

3. The lubricable guide rail bracket according to claim 2, characterized in that: The bottom surface of the V-shaped groove is inclined, and the distance between the bottom end of the V-shaped groove and the contact surface of the guide rail pair is greater than the two ends of the V-shaped groove.

4. The lubricable guide rail bracket according to claim 1, characterized in that: The lubricating oil flow channel includes an oil inlet flow channel and an oil outlet flow channel, the oil inlet flow channel and the oil outlet flow channel communicate with each other, the oil inlet flow channel is located at one end of the oil outlet flow channel, one side of the oil outlet flow channel extends to the surface of the guide rail bracket, and the lubrication through hole communicates with the oil outlet flow channel.

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