Wear-resistant timing system

Abstract

The utility model provides a wear-resistant timing system, and belongs to the technical field of engine parts. The problem that a chain wheel in an existing timing system is prone to abrasion is solved. The abrasion-resistant timing system comprises two transmission chain wheels and a chain connected to the two transmission chain wheels in a transmission mode, installation tables with oil storage paths are installed on the end faces of the transmission chain wheels, plummer blocks protruding outwards in the axial direction are arranged at the ends of the installation tables, and the oil storage paths are formed in the plummer blocks and enable the plummer blocks to form outer shaft shoulders and inner shaft shoulders. The end of the transmission chain wheel is provided with an oil passing groove allowing the plummer block to stretch into and communicated with the oil storage way, the oil storage way is filled with lubricating grease, an abutting table abutting against the inner shaft shoulder protrudes on the groove wall of the oil passing groove, and an oil passing gap is reserved between the outer shaft shoulder and the groove wall of the oil passing groove. An oil outlet groove communicated with the oil passing gap is formed between every two adjacent gear tooth parts on the transmission chain wheel. The utility model has the advantages of wear resistance and prolonged service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine parts and components, and relates to a timing system, in particular to a wear-resistant timing system. Background Art

[0002] Currently, the timing system in the engine usually includes a transmission sprocket and a chain matching the transmission sprocket. When the sprocket and the chain work together for a long time, it is easy to cause wear on the sprocket teeth, which affects the service life. Summary of the invention

[0003] The purpose of the utility model is to provide a new type of timing system with wear-resistant sprocket chain in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a wear-resistant timing system, comprising two transmission sprockets and a chain connected to the two transmission sprockets, characterized in that a mounting platform with an oil storage path is installed on the end faces of the transmission sprockets, the end of the mounting platform has a pillow block protruding axially outward, the oil storage path is opened on the pillow block and forms an outer shoulder and an inner shoulder on the pillow block, an oil groove is opened at the end of the transmission sprocket for the pillow block to extend into and communicate with the oil storage path, the oil storage path is filled with lubricating grease, abutment platform protruding on the groove wall of the oil groove against the inner shoulder, an oil gap is left between the outer shoulder and the groove wall of the oil groove, and an oil outlet groove connected to the oil gap is opened between two adjacent wheel teeth on the transmission sprocket.

[0005] In the above-mentioned wear-resistant timing system, a screw hole 1 passing through the inner shoulder is formed on the mounting platform, and a corresponding screw hole 2 is formed on the transmission sprocket, and the screw hole 1 and the screw hole 2 are connected by a long bolt.

[0006] In the above-mentioned wear-resistant timing system, a sealing ring is provided between the mounting platform and the transmission sprocket.

[0007] Compared with the prior art, the wear-resistant timing system lubricates the sprocket so that it is not easy to wear during operation, and has the advantages of wear resistance and increased service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional diagram of the wear-resistant timing system.

[0009] Figure 2 It is a cross-sectional view of the drive sprocket in the wear-resistant timing system.

[0010] In the figure, 1. drive sprocket; 2. chain; 3. oil storage channel; 4. mounting platform; 5. shaft platform; 6. outer shaft shoulder; 7. inner shaft shoulder; 8. oil groove; 9. abutment platform; 10. oil gap; 11. oil outlet groove; 12. screw hole one; 13. screw hole two; 14. sealing ring. DETAILED DESCRIPTION

[0011] 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.

[0012] like Figure 1 , Figure 2 As shown, the wear-resistant timing system includes two transmission sprockets 1 and chains 2 connected to the two transmission sprockets 1. The end faces of the transmission sprockets 1 are each provided with a mounting platform 4 with an oil storage path 3. The end of the mounting platform 4 has a pillow block 5 axially protruding outward. The oil storage path 3 is provided on the pillow block 5 so that the pillow block 5 forms an outer shoulder 6 and an inner shoulder 7. The end of the transmission sprocket 1 is provided with an oil groove 8 for the pillow block 5 to extend into and communicate with the oil storage path 3. The oil storage path 3 is filled with lubricating grease. The groove wall of the oil groove 8 has a protrusion that abuts against the inner shoulder 7. An oil gap 10 is left between the outer shaft shoulder 6 and the groove wall of the oil groove 8, and an oil outlet groove 11 connected with the oil gap 10 is opened between the two adjacent tooth portions on the transmission sprocket 1. The mounting platform 4 is installed and the shaft platform 5 is allowed to enter the oil groove 8. Before this, the oil storage path 3 is filled with grease, and the grease will form oil liquid when heated. Heat is generated in the working process of the transmission sprocket 1 to form oil liquid. The oil is discharged from the oil outlet groove 11 through the oil gap 10, and each tooth portion is lubricated under the centrifugal action when the transmission sprocket 1 moves.

[0013] Preferably, a screw hole 12 passing through the inner shoulder 7 is provided on the mounting platform 4, and a screw hole 13 is correspondingly provided on the transmission sprocket 1, and the screw hole 12 and the screw hole 13 are connected by a long bolt.

[0014] Preferably, a sealing ring 14 is provided between the mounting platform 4 and the driving sprocket 1 .

[0015] 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.

[0016] Although the terminology such as transmission sprocket 1, chain 2, oil storage channel 3, mounting platform 4, shaft platform 5, outer shaft shoulder 6, inner shaft shoulder 7, oil groove 8, abutment platform 9, oil gap 10, oil outlet groove 11, screw hole 12, screw hole 2 13, sealing ring 14 is 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 wear-resistant timing system, comprising two transmission sprockets (1) and a chain (2) connected to the two transmission sprockets (1), characterized in that: The end faces of the transmission sprockets (1) are all provided with mounting platforms (4) with oil storage passages (3). The end of the mounting platform (4) has a pillow block (5) protruding axially outward. The oil storage passage (3) is provided on the pillow block (5) so that the pillow block (5) forms an outer shoulder (6) and an inner shoulder (7). The end of the transmission sprocket (1) is provided with an oil groove (8) for the pillow block (5) to extend into and communicate with the oil storage passage (3). The oil storage passage (3) is filled with lubricating grease. The groove wall of the oil groove (8) is provided with a support platform (9) that abuts against the inner shoulder (7). An oil gap (10) is left between the outer shoulder (6) and the groove wall of the oil groove (8). An oil outlet groove (11) that communicates with the oil gap (10) is provided between two adjacent tooth portions on the transmission sprocket (1).

2. A wear-resistant timing system according to claim 1, characterized in that: The mounting platform (4) is provided with a screw hole (12) passing through the inner shaft shoulder (7), and the transmission sprocket (1) is provided with a corresponding screw hole (13). The screw hole (12) and the screw hole (13) are connected by a long bolt.

3. A wear-resistant timing system according to claim 1, characterized in that: A sealing ring (14) is provided between the mounting platform (4) and the transmission sprocket (1).

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