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High-performance tappet and machining method thereof

A processing method and high-performance technology, which can be used in heating devices, lighting and heating equipment, and drying solid materials without heating. Effect

Pending Publication Date: 2022-04-26
扬州光辉汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a high-performance tappet and its processing method, which solves the problem that the existing tappet processing method is too simple, so that the performance of the tappet itself is average, the surface layer is prone to looseness, and a large amount of looseness occurs. The existence of the surface layer will greatly reduce the mechanical properties such as wear resistance and contact fatigue strength. It is not enough to withstand high-speed relative sliding, and it is prone to wear and crush, which reduces the problem of performance.

Method used

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  • High-performance tappet and machining method thereof
  • High-performance tappet and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0036] see Figure 1-8 , the present invention provides a technical solution: a high-performance tappet processing method, which consists of the following steps:

[0037] Step 1. Preparing the blank: take No. 45 steel to make a steel bar, and cut the steel bar into sections by cutting and cutting, and manufacture it into a blank;

[0038] Step 2. Pretreatment: Quenching and high-temperature tempering are carried out on the blank, and it is transported out of the tempering furnace and cooled to room temperature by natural air to obtain a pretreated piece;

[0039] Step 3, electrolytic treatment: place the pretreated part in the electrolyte as the anode of electrolysis, and place the lead plate or copper plate in the acid electrolyte as the cathode of electrolysis. A layer of oxide film is formed under the oxidation of ions;

[0040] Step 4, post-processing: clean the raw materials processed in step 3, and dry them through drying equipment to obtain high-performance tappets. ...

Embodiment example 2

[0042] The drying equipment includes a body 1, a driving roller 2, a conveying device 3, a pressing device 4, and an impact device 5. The driving roller 2 is arranged at a position corresponding to the bottom of the inner wall of the body 1, and the conveying device 3 is arranged on the surface of the driving roller 2. The pressing device 4 is arranged on the inner wall of the conveying device 3, and the impact device 5 is arranged inside the body 1 and close to the conveying device 3;

[0043] Inside the body 1 and close to the transmission roller 2, a power mechanism 6 is provided. The output shaft of the power mechanism 6 and the end of the transmission roller 2 are connected through a belt transmission assembly. Heater 7, a water tank 8 is set at the bottom center of the body 1, the power mechanism 6 is used as the driving force, and the drive roller 2 is driven by the belt drive assembly. At this time, the conveying device 3 will need to dry the tappet raw materials for ho...

Embodiment example 3

[0045] Conveying device 3 is provided with conveyer belt 31, elastic screen cloth 32, curved skirt 33, conveyer belt 31 is arranged on the surface of drive roller 2, elastic screen cloth 32 is arranged on the surface of conveyer belt 31, elastic screen cloth 32 and conveyer belt 31 are arranged as a whole, The curved skirt 33 is arranged on the surface of the conveyor belt 31 and near the position of the elastic screen 32. The conveyor belt 31, the elastic screen 32 and the curved skirt 33 are all closed loops. With the rotation of the drive roller 2, the conveyor belt 31, which is formed as a whole, is formed. The elastic screen 32 and the curved skirt 33 rotate together. At the same time, under the action of the pressing device 4 and the drive roller 2, the conveyor belt 31 and the elastic screen 32 form a synchronous conveyor belt, which is not easy to slip, and thus helps The raw material is conveyed, and during the conveying process, the curved skirt 33 can block the raw m...

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Abstract

The invention discloses a high-performance tappet and a processing method thereof. The processing method comprises the following steps: preparing a blank; the blank is subjected to quenching and high-temperature tempering treatment and conveyed out of a tempering furnace to be cooled to the room temperature through natural air; electrolytic treatment is conducted, specifically, the pretreated part is placed in an electrolyte to serve as an anode of electrolysis, a lead plate or a copper plate is placed in an acid electrolyte to serve as a cathode of electrolysis, and an oxidation film layer is formed on the surface under the oxidation effect of oxygen ions generated by water electrolysis under the effect of an electric field; and post-treatment is conducted, specifically, the raw materials treated in the third step are cleaned, and drying treatment is conducted on the raw materials through drying equipment. According to the high-performance tappet and the machining method thereof, the high-performance effect is achieved, the surface layer is not prone to loosening, the mechanical performance such as abrasion resistance and contact fatigue strength is achieved, the tappet can adapt to high-speed relative sliding, the phenomena such as abrasion and crushing are not prone to occurring, and the use performance is improved.

Description

technical field [0001] The invention relates to the technical field of tappet processing, in particular to a high-performance tappet and a processing method thereof. Background technique [0002] The tappet is the follower of the cam. Its function is to transmit the motion and force from the cam to the push rod or valve, and at the same time bear the lateral force exerted by the cam and transmit it to the body or cylinder head. The materials for making tappets include carbon steel, alloy steel, nickel-chromium alloy cast iron and chilled alloy cast iron. Tappets can be divided into two categories: mechanical tappets and hydraulic tappets, each of which has a variety of structural forms such as plane tappets and roller tappets. Mechanical tappets have simple structure and light weight, and are widely used in medium and small engines. The radius of the push rod ball bearing on the tappet is slightly larger than the radius of the push rod head so that a wedge-shaped oil film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/00F26B15/18F26B25/02F26B25/04F26B23/06C25D11/34F01L1/14
CPCF26B5/00F26B15/18F26B25/02F26B25/04F26B23/06C25D11/34F01L1/14F01L2303/00
Inventor 杜举才杜学坤徐巍巍
Owner 扬州光辉汽车零部件有限公司