Chain structure pressure arm and support seat roller and its assembly process

Abstract

The application discloses a chain structure pressure arm and support seat roller shaft and an assembling process thereof, which comprises a support seat, a first insertion hole is formed in the middle of the upper end of the support seat, a second insertion hole is formed in the lower end of the roller shaft, the lower end of the split pin is in interference fit in the first insertion hole, and the upper end of the split pin is in interference fit in the second insertion hole. The application has the advantages that the failure caused by the impact between the roller shaft and the retainer is eliminated, the movement gap of the pressure arm caused by braking only appears in the size of the pressure arm 22.2 and the clamp body, the pressure arm only moves linearly on the fixed roller shaft, the braking gap error caused by the continuous rotation of the roller shaft between the bushing and the support seat is solved, and the adjustment delay is avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to chain-structured pressure arms and support rollers and their assembly processes. Background Technology

[0002] In the existing technology, conventional support seats, during use, such as Figure 1 As shown, because there is a gap between the pressure arm and the caliper, the roller will move in the two directions of the red arrow on the left during braking to hit the retainer. After a long time, the retainer will not be able to withstand the impact and will break.

[0003] like Figure 2 As shown, during braking, the shaft indicated by the yellow arrow will move in the two directions of the red arrow. Because there is no limit between the shaft and the support, and the shaft and the cage originally have a 0.5mm gap, the force will be even greater during emergency braking. The roller will generate a huge impact force to hit the cage, which will eventually cause the cage to break. The way the roller is attached to the pressure arm causes the cage to fail, and the failure time will also depend on the road conditions. For example, failure is more likely to occur on long downhill slopes.

[0004] like Figure 3 As shown, some existing technologies fix the shaft to the upper end of the support base. Similarly, the movement of the shaft will deform or break the cages at both ends. In this roller installation method, when the pressure arm rotates on the roller, it will also cause the shaft to move in the direction of the red arrow, which will also deform the cage, causing the roller to fall off or the cage to break.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by this invention is to overcome the above-mentioned technical defects and provide a chain structure pressure arm and support seat roller and its assembly process, which eliminates the failure caused by the impact between the roller and the cage; the movement gap of the pressure arm due to braking will only appear in the dimension of the pressure arm 22.2 and the clamp body; the pressure arm will only move along the fixed roller, which solves the problem of braking gap error caused by the continuous rotation of the roller between the bushing and the support seat due to the previous assembly method, and even the situation of adjustment delay.

[0007] To solve the above problems, the technical solution of the present invention is: a chain structure pressure arm and support roller and their assembly process, including: The support base has an insertion hole at the middle of its upper end; A roller, wherein a second insertion hole is provided at the lower end of the roller; A cotter pin, wherein the lower end of the cotter pin is interference-fitted into the interior of socket one, and the upper end of the cotter pin is interference-fitted into the interior of socket two.

[0008] Preferably, the roller surface is fitted with a rotatable pressure arm and bushing.

[0009] This invention also discloses an assembly process for the chain structure pressure arm and the support roller, including the following steps: Step 1: Drill a hole in the center of the top of the support base on the existing foundation. Step 2: Remove the steps at both ends of the roller, drill the second insertion hole in the middle, and insert the cotter pin into the second insertion hole of the roller with an interference fit. Step 3: Insert the roller with cotter pin into the insertion hole 1 of the support base with an interference fit; Step 4: The rollers and support base should not rotate during use.

[0010] The advantages of this invention compared to existing technologies are: (1) The assembly method of the present invention eliminates the failure caused by the impact between the roller and the cage; (2) The movement clearance of the pressure arm caused by braking in this invention will only appear in the dimensions of the pressure arm 22.2 and the clamp body; (3) The pressure arm of the present invention will only move on the fixed roller, which solves the problem of braking gap error caused by the roller constantly rotating between the bushing and the support seat due to the previous assembly method, and even the situation of adjustment delay. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the chain structure pressure arm and support roller in the existing technology. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the chain structure pressure arm and support roller in the existing technology. Figure 2 .

[0013] Figure 3 This is a schematic diagram of the chain structure pressure arm and support roller in the existing technology. Figure 3 .

[0014] Figure 4 This is a schematic diagram of the chain structure pressure arm and support roller of the present invention. Figure 1 .

[0015] Figure 5 This is a schematic diagram of the chain structure pressure arm and support roller of the present invention. Figure 2 .

[0016] As shown in the figure: 1. Support base; 2. Insertion hole one; 3. Roller; 4. Insertion hole two; 5. Cotter pin. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0018] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0019] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figure 4-5 As shown, the chain structure includes a pressure arm and a support roller, comprising a support 1 with an insertion hole 2 at the middle of its upper end; an insertion hole 4 at the lower end of the roller 3; and a cotter pin 5 with its lower end interference-fitted into the insertion hole 2 and its upper end interference-fitted into the insertion hole 4. A rotatable pressure arm and bushing are fitted onto the surface of the roller 3.

[0021] The assembly process of the chain structure pressure arm and support roller includes the following steps: Step 1: Drill a hole 2 in the center of the upper part of the support base 1 on the existing foundation. Step 2: Remove the steps at both ends of roller 3, drill the second insertion hole 4 in the middle, and insert the cotter pin 5 into the second insertion hole 4 of roller 3 with an interference fit. Step 3: Insert the roller 3 with the cotter pin 5 into the insertion hole 1 of the support base 1 with an interference fit. Step 4: During use, roller 3 and support base 1 do not rotate.

[0022] The above assembly method eliminates the failure caused by the impact between the roller 3 and the cage. Furthermore, the movement gap caused by the braking of the pressure arm will only appear in the dimensions of the pressure arm 22.2 and the clamp body. In addition, with the above assembly method, the pressure arm will only move along the fixed roller 3, which solves the braking gap error caused by the continuous rotation of the roller 3 between the bushing and the support seat 1 due to the previous assembly method, and even the situation of adjustment delay.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A chain-structured pressure arm and support roller, characterized in that, include: Support base (1), with an insertion hole (2) at the middle of the upper end of the support base (1); Roller (3), with a second insertion hole (4) at the lower end of the roller (3); A cotter pin (5) is provided, with its lower end interference-fitted into the first socket (2) and its upper end interference-fitted into the second socket (4).

2. The chain structure pressure arm and support roller according to claim 1, characterized in that, The roller (3) is fitted with a rotatable pressure arm and bushing.

3. The assembly process of the chain structure pressure arm and support roller according to claims 1-2, characterized in that, Includes the following steps: Step 1, Support base (1) Drill a hole in the center of the upper part of the existing base (2) Step 2: Remove the steps at both ends of the roller (3), drill the second insertion hole (4) in the middle, and press the cotter pin (5) into the second insertion hole (4) of the roller (3) with an interference fit; Step 3: Insert the roller (3) with cotter pin (5) into the insertion hole of the support base (1) with an interference fit; Step 4: During use, the roller (3) and the support base (1) do not rotate.

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