CN101101083A

CN101101083A - Stepwise type distributor

Info

Publication number: CN101101083A
Application number: CNA2007100699730A
Authority: CN
Inventors: 韩峰
Original assignee: SANLANG LUBRICATING ELEMENT CO Ltd NINGBO
Current assignee: SANLANG LUBRICATING ELEMENT CO Ltd NINGBO
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2008-01-09
Anticipated expiration: 2027-07-10
Also published as: CN100462610C

Abstract

It is a progressive type grease distributor for lubrication system. The spool is made of quality carbon steel and is processed by surface quenching. The valve body is made from aluminum alloy and is shaped by die-casting or drawing and cutting. The valve opening is processed by cutting. Then the valve body surface and inner wall of valve opening form a layer of transforming membrane by electrochemical method. After this step, the inner wall of valve opening has to be grinded to form the distributor with spool.

Description

Stepwise type distributor

Technical field

The present invention relates to the lubricating fitting technical field, especially relate to a kind of dispensing device of lubricant oil.

Background technique

Present stepwise type distributor used in lubrication system generally divides two kinds of made of one piece and chips, and the stepwise type distributor of slice structure is to be formed by stacking by a plurality of groups, bolton commonly used between each sheet group; The material of making the sheet group is a Fine Steel Casting iron, and the Rockwell hardness HRC after modified reaches 20--25, and difficulty of processing is big; Owing to seepage can occur between the sheet group of bolton, add that permanent work makes spool and valve opening because of the leakage that wearing and tearing produce, what influence distributor joins the olein degree and the sensitivity of working, and especially the distributor that need are outwards exported the displacement signal influences particularly serious;

The distributor of made of one piece structure, internal oil passages connectivity and good airproof performance can not produce seepage between the such sheet group of chip distributor, but nowadays also cannot make the valve body of made of one piece distributor with the Fine Steel Casting iron material in batches; Mostly be at present the employing zinc alloy material, with die cast, to valve opening through cutting, the technology that valve opening is cooperated with spool then; Because of the Brinell hardness HB of zinc alloy only is 90, and spool is by the Fine Steel Casting iron manufacturing, and the Rockwell hardness HRC after surface hardening is handled is 40-59; Event can not show a candle to above-mentioned chip distributor by the wear resistance of the made of one piece distributor of this manufactured, uses one will occur interior seepage phenomenon for a long time, has therefore restricted the application of such distributor.

Summary of the invention

The objective of the invention is provides a kind of stepwise type distributor that is used for lubrication system in order to solve the problem that above-mentioned prior art exists, and can keep the advantage of former made of one piece distributor, can overcome the interior seepage phenomenon that occurs because of not wear-resisting again, increases the service life.

For achieving the above object, the technical solution used in the present invention is such: a kind of stepwise type distributor, its valve body is to adopt aluminum alloy material, through die cast or drawing excision forming, again valve opening is carried out cutting, the valve body of valve opening after cutting need carry out all-in-one-piece hard anodized to be handled, and promptly generates one deck conversion coating by electrochemical method in valve body surface and valve opening inner wall surface; This layer conversion coating compared with the patina that aluminium and alloy thereof form in air, not only thickness increases greatly, can reach more than the 30 μ m, and hardness is incomparable especially, reaches 400HV above (being equivalent to Rockwell hardness HRC more than 40), and is 40-59 by the spool Rockwell hardness HRC of Fine Steel Casting iron after surface hardening is handled, so spool, the valve opening of hardness match, form the friction pair of excellent performance, wear resistance improves greatly, has prolonged working life; Valve body grinds the valve opening inwall in the valve body after hard anodized is handled again, fits in stepwise type distributor with spool then.

Owing to adopted technique scheme, a kind of stepwise type distributor of the present invention, than prior art, the advantage that had both kept former made of one piece distributor, after anodization, improved the wear resistance of valve opening and spool again because of the valve body of aluminum alloy manufacturing, thereby avoided the generation of interior seepage, prolonged working life.

Embodiment

A kind of stepwise type distributor of the present invention, its valve body is to adopt aluminum alloy material, through die cast, again valve opening is carried out cutting, the valve body of valve opening after cutting need carry out all-in-one-piece hard anodized to be handled, and promptly generates one deck conversion coating by electrochemical method in valve body surface and valve opening inner wall surface; Valve body is after hard anodized is handled, and the valve opening inwall to valve body grinds again, then with by the Fine Steel Casting iron manufacturing, and the spool of handling through surface hardening fits in stepwise type distributor;

Said aluminum alloy is: except 2000 series alloys with contain whole reflectals 5000 series alloys of 2% or 2% above magnesium;

The said conversion coating THICKNESS CONTROL that generates after hard anodized is handled is more than 30 μ m;

Said after hard anodized is handled valve body surface and the vickers hardness hv of valve opening inner wall surface be controlled at more than 400;

Said by the Fine Steel Casting iron manufacturing, and the spool of handling through surface hardening, its Rockwell hardness HRC is controlled between the 40-59.

Claims

1, a kind of stepwise type distributor, its spool be by the Fine Steel Casting iron manufacturing, and handle through surface hardening, it is characterized in that: valve body adopts aluminum alloy material, through die cast or draw excision forming, again valve opening is carried out cutting; The valve body of valve opening after cutting need carry out all-in-one-piece hard anodized to be handled, and promptly generates one deck conversion coating by electrochemical method in valve body surface and valve opening inner wall surface; Valve body is after hard anodized is handled, and the valve opening inwall to valve body grinds again, fits in stepwise type distributor with spool then.

2, a kind of stepwise type distributor according to claim 1, it is characterized in that: said aluminum alloy is: except 2000 series alloys with contain whole reflectals 5000 series alloys of 2% or 2% above magnesium.

3, a kind of stepwise type distributor according to claim 1 is characterized in that: the said conversion coating that generates after hard anodized is handled, THICKNESS CONTROL is more than 30 μ m.

4, a kind of stepwise type distributor according to claim 1 is characterized in that: said after hard anodized is handled valve body surface and the vickers hardness hv of valve opening inner wall surface be controlled at more than 400.

5, a kind of stepwise type distributor according to claim 1 is characterized in that: said by the Fine Steel Casting iron manufacturing, and the spool of handling through surface hardening, its Rockwell hardness HRC is controlled between the 40-59.