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Machining technology for rotary blade type hydraulic steering gear

A processing technology and a rotary vane type technology, which is applied in the processing technology field of rotary vane hydraulic steering gear, can solve the problems that the processing accuracy cannot meet the working requirements of the steering gear, the turning processing method cannot be used, and the processing efficiency is low, and the assembly is eliminated. The effect of dislocation of each hole, convenient manufacturing and inspection, and improved safety

Inactive Publication Date: 2009-09-23
CSSC NANJING LUZHOU MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high requirements on surface roughness, size, shape and position accuracy of this part, a slight error will cause leakage and make the steering gear unable to operate normally
This arc cannot be done with turning and grinding methods
For this kind of arc surface, the usual forming method is casting, and then it is completed by planing, slotting and wire cutting, but the efficiency of planing and slotting is extremely low, and the machining accuracy cannot meet the working requirements of the steering gear.
In addition to the low efficiency of wire cutting, all previous efforts will be wasted due to the breakage of molybdenum wire

Method used

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  • Machining technology for rotary blade type hydraulic steering gear
  • Machining technology for rotary blade type hydraulic steering gear
  • Machining technology for rotary blade type hydraulic steering gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment is a processing technology of a rotary vane hydraulic steering gear, and the specific processing is as follows:

[0033] Guarantee of the roughness and shape and position tolerance of the inner hole of the cylinder and the sealing surface of the lower end:

[0034] First choose rough machining on the 2.5m vertical lathe, and change the turning finishing of the cylinder parts to be carried out on the double-turret CNC vertical lathe equipped with grinding heads. The turning finishing is completed by one clamping, and the grinding head The upper grinding wheel grinds the sealing surface of the parts. After repeated verification, improvement and perfection of many process tests, the three cutting elements that are reasonably matched are selected, and the processing method of rough turning-finish turning-rough grinding-finish grinding is adopted. After cutting, there are some textures on the inner wall of the cylinder. After manual polishing, check with a ro...

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Abstract

The invention relates to the machining technology for a steering gear, in particular to the machining technology for a rotary blade type hydraulic steering gear, comprising a machining procedure for an inside hole of a cylinder body and a sealing surface at the lower end of the cylinder body, a machining procedure for a sealing groove on the sealing surface at the lower end of the cylinder body, a machining procedure for appearance of a stationary blade and a machining procedure for the stationary blade and a connecting hole of the cylinder body, a combination machining procedure for the cylinder body, the stationary blade and a copper sleeve, a machining procedure for an inside conical hole of a rotor and a machining procedure for an incomplete arc surface of the rotor. The machining procedures of the invention can greatly improve the machining accuracy and efficiency of each main part of the rotary blade type hydraulic steering gear, lower the production cost, as well as improve the working efficiency and the product quality.

Description

technical field [0001] The invention relates to a processing technology of a steering gear, in particular to a processing technology of a rotary vane hydraulic steering gear. Background technique [0002] The processing technology of the rotary vane hydraulic steering gear includes: the processing process of the inner hole of the cylinder and the sealing surface of the lower end; the processing process of the sealing groove on the sealing surface of the lower end of the cylinder; the processing process of the shape of the stationary vane; Processing procedures; combined processing procedures of cylinder block, stationary vanes and copper sleeves; processing procedures of inner tapered holes of rotors; processing procedures of incomplete arc surfaces of rotors. [0003] The processing procedure of the inner hole of the cylinder and the sealing surface of the lower end: figure 1 Shown is a partial view of the cylinder of the rotary vane hydraulic steering gear. The processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/02
Inventor 杨建华倪国辉金玉闵杨维中蒋少勤
Owner CSSC NANJING LUZHOU MACHINE
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