Four-door roller shaft structure

Abstract

The invention relates to a four-door roller shaft structure. The four-door roller shaft structure is mounted on a bracket (8). The four-door roller shaft structure comprises a roller shaft (1); the head end face of the roller shaft (1) is provided with a flat end (9); a first needle roller bearing (5) is arranged on the middle of the roller shaft (1); a roller (6) is arranged at the tail of the roller shaft (1); a first thread hole is arranged in the tail of the roller shaft (1); the roller (6) is axially fixed to the tail of the roller shaft (1) in a manner that an inner hexagon bolt (7) which is matched with the first thread hole penetrates through the roller (6) from one side of the roller (6); a second needle roller bearing (11) is arranged on the head end of the roller shaft (1); and the flat end (9) is provided with a fixed mounting structure through which a wrench fixing portion (10) for assisting the disassembly of the roller (6) can be fixedly arranged on the end face of the flat end (9). Compared with the prior art, the four-door roller shaft structure has the advantages of easy disassembly, high bearing strength and so on.

Description

technical field [0001] The invention relates to a roller shaft, in particular to a four-door roller shaft structure. Background technique [0002] In recent years, with the rapid development of my country's economy, my country's automobile industry, especially the car industry, has been on the track of rapid development. Cars have gradually entered the homes of thousands of households and become a means of transportation that people often use in daily life. In order to meet the requirements of the rapid development of the automobile industry, for the automobile parts supporting manufacturers whose production speed and quality play a decisive role, the requirements for the structure, quality and quantity of the parts produced are getting higher and higher. [0003] As one of the important parts of the automobile, the structure of the four-door roller shaft is as follows: figure 1 with figure 2 As shown, the four-door roller shaft structure is installed on the bracket 8, in...

AI Technical Summary

Problems solved by technology

Under the current situation, because the flat end 9 at the top of the head of the roller shaft 1 is affected by the bracket 8 with a wrench, it is difficult to fix the wrench, and it is extremely difficult to disassemble, which makes it difficult to control the maintenance time, thereby affecting the production cycle

In addition, the rolling ball bearing 3 and the spacer 4 at the head of the rolling shaft 1, because the rolling shaft 1 is not fixed in the axial direction, it is easy to cause the rolling ball bearing 3 to move in the axial direction, and the product quality will be affected when the equipment is running

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