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Gear subjected to surface treatment process

A surface treatment and gear technology, applied in the direction of belts/chains/gears, components with teeth, hoisting devices, etc., can solve the problems of costing materials, not solving gear wear, energy consumption, etc.

Active Publication Date: 2016-09-07
重庆大合汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the meshing teeth are still metal, it does not solve the problem of gear wear
[0011] To sum up, various methods to improve gear life have certain limitations, and cannot fundamentally solve the problem of gear fatigue and wear
The fatigue damage and wear of gear transmission not only consumes energy and materials, but also consumes more manpower and material resources when replacing parts due to fatigue damage and wear, and consumes manpower and material resources and reduces labor productivity. , in order to reduce the fatigue and friction and wear of mechanical transmission parts is the current top priority

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for coating a wear-resistant high-strength resin coating on the surface of a gear: comprising the following steps:

[0047] Step 1: Fix the gear to be coated in the mold 40; wherein the inner axis of the mold 40 is provided with a hole for installing the gear, so that when the gear is fixed at a predetermined axial fixed position, it corresponds to a coating resin thickness of 0.3 mm. Cavity 41; 4 through holes are provided on one side of the mold where the resin is injected. When the mold 40 is closed, the shaft passes through the through hole in the center of the mold side of the gear and the injection resin, and there are 3 cylindrical pins on the mold on the side of the fixed gear, and the pins pass through 3 of the periphery of the mold side of the injection resin. Through the hole, the gear is embedded in the mold. Three injection ports are provided in the middle of the above three through holes for injecting molten wear-resistant high-strength resin. Th...

Embodiment 2

[0054] Before the gear surface is coated with the wear-resistant high-strength resin coating, nitric acid or mixed acid is used to corrode the gear tooth surface to increase the adhesion between the gear surface and the wear-resistant high-strength resin coating.

[0055] Described mixed acid comprises:

[0056] A method for coating a wear-resistant high-strength resin coating on the surface of a gear: comprising the following steps:

[0057] Step 1: Fix the gear to be coated in the mold; wherein the mold is provided with a shaft for installing the gear, so that when the gear is fixed at a predetermined axial fixed position, it corresponds to a mold cavity with a coating resin thickness of 20mm; when injecting the resin There are 4 through holes on one side of the mold. When the mold is closed, the shaft passes through the through hole in the center of the gear and the side of the mold where the resin is injected, and there are 3 cylindrical pins on the mold on the side of th...

Embodiment 3

[0063] Such as figure 1 As shown in , the present invention also shows positioning and processing equipment for preheating and surface treatment of the gear 10 .

[0064] In this case, for the sake of clarity, the dies arranged outside the gear wheel 10 are not shown in the figure. The gear 10 includes a gear main body 11 and an intermediate hub 12 . The external teeth of the gear may typically have straight teeth. The two middle hub parts 12 located on the sides of the gear 10 extend from the center shaft of the gear in opposite directions to the two sides.

[0065] The apparatus includes a frame 100 (the remainder not shown) on which the molds can be fixed, and the frame 100 can obviously also include other frames (not shown) extending upwards to accommodate or hold the molds and other injection-needed components. equipment.

[0066] In particular, the rack 100 includes a positioning head 14 at the lower part of the rack operating table, the positioning head 14 is rotat...

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PUM

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Abstract

The invention provides a gear subjected to a surface treatment process. The surface of gear is coated with a wear-resistant high-strength resin coating which is formed by pre-heating the gear and a mold, and then injecting a molten wear-resistant high-strength resin in a mold cavity between the mold and the gear face of the gear so that the wear-resistant high-strength resin is highly crystallized in the gradual cooling process. The gear has an intermediate hub portion. The intermediate hub portion has a first end face located outside the side of a body of the gear, and a second end face obliquely connecting the side and the first end face of the body of the gear. Grooves are disposed in the first end face and the face of a hub hole of the intermediate hub portion, so that the gear can be clamped and fixed to a predetermined axial fixed position.

Description

technical field [0001] The present invention relates to a mechanical power transmission component, in particular to a gear that has undergone surface treatment, and also to a process for surface treatment of the gear, and further to equipment for surface treatment of the gear. Background technique [0002] A gear is one of the most common mechanical power transmission components used to mesh with another similar machine to transmit rotational motion. Common gears include planetary gears, spur gears, bevel gears, turbines, etc. Gear transmission is one of the most commonly used transmission methods in machinery, and is widely used in industrial and civil fields such as transportation and machinery manufacturing. [0003] When the gear meshes and transmits, due to the relative sliding on the meshing surfaces, sliding friction is generated between the meshing surfaces. The change of the magnitude and direction of the frictional force leads to the meshing impact force during t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/06F16H55/17B29C45/14
CPCB29C45/14065B29C45/14311F16H55/06F16H55/17
Inventor 马红军
Owner 重庆大合汽车配件有限公司
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