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A guide and its preparation method

A guider and body technology, applied in the field of guider and its preparation, can solve the problems of guider structural strength weak, affecting driving safety, low surface hardness, etc., to improve structural stability and strength, high structural strength, The effect of high compressive strength

Active Publication Date: 2020-10-09
宁波顺达粉末冶金工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the structural strength of the above-mentioned guide is weak, the surface hardness is low, and the guiding accuracy is low, which makes the service life of the above-mentioned guide short, which leads to an increase in the maintenance and replacement frequency of the shock absorber, and affects driving safety, which needs to be improved.

Method used

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  • A guide and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 As shown, a guide includes a guide body 1 . Three equal-arc oil return holes 11 are provided on the upper end of the guide body 1 , and a wear-reducing sleeve 2 , an oil deflector ring 3 and an oil seal groove 13 are sequentially provided inside the guide body 1 from bottom to top. At the same time, an insert ring 12 located between the oil slinger 3 and the oil seal groove 13 is provided on the inside of the guide body 1 , and a vent 121 is provided on the lower side of the insert ring 12 .

[0042] It should be noted that the guide body 1 includes the following components by weight:

[0043] 65 parts of 80-mesh iron powder, 18 parts of 100-mesh iron powder, 10 parts of atomized iron powder, 1 part of copper powder, 0.92 part of graphite powder, 0.72 part of zinc stearate, 0.1 part of sulfur powder and 0.40 part of chromium powder.

[0044] A method for preparing a guide, comprising the steps of:

[0045] Step 1. Take 65 parts of 80 mesh iron powder, 1...

Embodiment 2

[0052] like figure 1 As shown, a guide includes a guide body 1 . Three equal-arc oil return holes 11 are provided on the upper end of the guide body 1 , and a wear-reducing sleeve 2 , an oil deflector ring 3 and an oil seal groove 13 are sequentially provided inside the guide body 1 from bottom to top. At the same time, an insert ring 12 located between the oil slinger 3 and the oil seal groove 13 is provided on the inside of the guide body 1 , and a vent 121 is provided on the lower side of the insert ring 12 .

[0053] It should be noted that the guide body 1 includes the following components by weight:

[0054] 68 parts of 80 mesh iron powder, 19 parts of 100 mesh iron powder, 10 parts of atomized iron powder, 1 part of copper powder, 0.94 part of graphite powder, 0.74 part of zinc stearate, 0.11 part of sulfur powder and 0.42 part of chromium powder.

[0055] A method for preparing a guide, comprising the steps of:

[0056] Step 1. Take 68 parts of 80 mesh iron powder, ...

Embodiment 3

[0063] like figure 1 As shown, a guide includes a guide body 1 . Three equal-arc oil return holes 11 are provided on the upper end of the guide body 1 , and a wear-reducing sleeve 2 , an oil deflector ring 3 and an oil seal groove 13 are sequentially provided inside the guide body 1 from bottom to top. At the same time, an insert ring 12 located between the oil slinger 3 and the oil seal groove 13 is provided on the inside of the guide body 1 , and a vent 121 is provided on the lower side of the insert ring 12 .

[0064] It should be noted that the guide body 1 includes the following components by weight:

[0065] 70 parts of 80-mesh iron powder, 20 parts of 100-mesh iron powder, 9 parts of atomized iron powder, 1.1 parts of copper powder, 0.98 parts of graphite powder, 0.77 parts of zinc stearate, 0.12 parts of sulfur powder and 0.45 parts of chromium powder.

[0066] A method for preparing a guide, comprising the steps of:

[0067] Step 1. Take 70 parts of 80 mesh iron po...

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Abstract

The invention discloses a guide and a preparation method thereof, and relates to the technical field of automobile shock absorbers. The key points of the technical solution include a guide body, and three oil return holes distributed in an equal arc are arranged on the upper end of the guide body. The inside of the guide body is provided with a wear-reducing sleeve, an oil deflector ring and an oil seal groove in sequence from bottom to top, and an insert ring located between the oil deflector ring and the oil seal groove is arranged on the inside of the guide body. The lower side of the insert ring is provided with an air vent. The invention has the function of effectively reducing friction and prolonging the service life of the guide body through the wear-reducing sleeve in the guide body; the oil seal groove of the oil deflector ring plays the role of effectively sealing the oil circuit; Excessive pressure in the guide body causes the structure of the guide body to crack, so that the guide body has the characteristics of precise guidance and high structural strength.

Description

technical field [0001] The present invention relates to a kind of automobile shock absorber part, more specifically it relates to a kind of guide and its preparation method. Background technique [0002] Automobile shock absorber is a kind of damping element, which is a vulnerable part in the process of automobile use. It is one of the important components of automobile suspension system. Sex plays a decisive role. The guide acts as a guide for the movement of the piston rod in the automobile shock absorber, and bears the lateral force generated during the movement of the piston rod. In order to keep the working cylinder and the oil storage cylinder connected, the guide is usually provided with an oil hole. [0003] The Chinese patent with the publication number CN109322962A discloses a guider. The guider for the automobile shock absorber sequentially includes a main body core layer made of foamed steel and a magnesium alloy surface layer on the surface of the main body cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/32B22F1/00B22F3/24C22C38/16C22C38/20C22C38/60C23C10/30C23C24/08
CPCF16F9/3207C22C38/16C22C38/60C22C38/20B22F3/24C23C10/30C23C24/087B22F2003/242B22F2998/10B22F1/052B22F1/10B22F3/02B22F3/1007
Inventor 蔡迎伟
Owner 宁波顺达粉末冶金工业有限公司