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Machining method for automotive downhill reducer control levers

A technology of downhill reducer and processing method, which is applied in vehicle parts, transportation and packaging, etc., can solve the problems of poor wear resistance and corrosion resistance, unstable parts quality, high processing cost, etc., and achieve high cost performance and easy Operation, the effect of reducing the processing cost

Inactive Publication Date: 2016-12-07
贵州凯星液力传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when processing the downhill reducer control rod, the production cycle is long, the processing cost is high, and the quality of the processed parts is unstable, and the wear resistance and corrosion resistance are strong and poor

Method used

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  • Machining method for automotive downhill reducer control levers
  • Machining method for automotive downhill reducer control levers
  • Machining method for automotive downhill reducer control levers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Such as figure 1 As shown, the process hole of the present invention includes a central hole 1 and an inner hole conical surface 2, the central hole 1 is designed as a B 3.15 / 10 central hole, and the cone angle of the inner hole conical surface 2 is designed as a 60° inner hole cone On the other hand, when the process hole is finishing the outer circle of the part, it needs to use abrasive sand to study the center hole, so as to ensure the shape and position tolerance requirements of the outer circle surface, so as to ensure the assembly requirements of the downhill deceleration control rod and the valve hole.

[0062] Using upper process hole B 3.15 / 10 and 60° inner hole conical surface to process as Figure 6 The method for the control rod of the downhill reducer is shown, and its specific processing method steps are as follows:

[0063] (1) Material preparation: choose bar material 20CrMnTi as the blank, and the blanking size is φD×Lmm;

[0064] (2) Heat treatment:...

Embodiment 2

[0080] Such as figure 1 As shown, the process hole of the present invention includes a central hole 1 and an inner hole conical surface 2, the central hole 1 is designed as a B 3.15 / 10 central hole, and the cone angle of the inner hole conical surface 2 is designed as a 60° inner hole cone On the surface, the process hole needs to use abrasive sand to study the center hole when finishing the outer circle of the part, so as to ensure the shape and position tolerance requirements of the outer circle, so as to ensure the assembly requirements of the downhill deceleration control rod and the valve hole; the downhill The assembly gap between the reducer control rod and the valve hole is 0.045mm.

[0081] Using upper process hole B 3.15 / 10 and 60° inner hole conical surface to process as Figure 6 The method for controlling the valve stem of the downhill reducer shown, the specific processing steps are as follows:

[0082] (1) Material preparation: choose bar material 20CrMnTi as ...

Embodiment 3

[0099] Such as figure 1 As shown, the process hole of the present invention includes a central hole 1 and an inner hole conical surface 2, the central hole 1 is designed as a B 3.15 / 10 central hole, and the cone angle of the inner hole conical surface 2 is designed as a 60° inner hole cone On the surface, the process hole needs to use abrasive sand to study the center hole when finishing the outer circle of the part, so as to ensure the shape and position tolerance requirements of the outer circle, so as to ensure the assembly requirements of the downhill deceleration control rod and the valve hole; the downhill The assembly gap between the reducer control rod and the valve hole is 0.06mm.

[0100] Using upper process hole B 3.15 / 10 and 60° inner hole conical surface to process as Figure 6 The method for the control rod of the downhill reducer is shown, and its specific processing method steps are as follows:

[0101] (1) Material preparation: choose bar material 20CrMnTi a...

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Abstract

The invention discloses a machining method for automotive downhill reducer control levers. The machining method includes the specific steps of (1) material preparation; (2) heat treatment; (3) auxiliary hole design and turning; (4) heat treatment; (5) milling; (6) bench work; (7) finish turning; (8) heat treatment; (9) turning; (10) grinding; (11) surface treatment; (12) bench work; (13) accurate grinding; (14) bench work, specifically, removing of burrs on sharp edges; and (15) inspection. By means of the machining method, the special vehicle downhill reducer control levers can be conveniently and quickly manufactured, the workpiece production cycle can be effectively shortened, the machined parts are stable in quality, and the machining cost is greatly lowered. The machining method is simple, operation is easy, the special vehicle downhill reducer control levers are good in wear resistance and high in corrosion resistance, and the workpiece machining rigidity can be effectively improved by means of the machining method.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing method for a control rod of a vehicle downhill reducer. Background technique [0002] Hydraulic transmissions are widely used in special vehicles in construction machinery, oil and gas field mining equipment, rail transit and other fields. The working environment of such vehicles is very harsh and the mechanical performance requirements are high. Therefore, the hydraulic transmission must not only realize the functions of automatic speed regulation, power shift, shock isolation and shock absorption, and overload protection, but also need to have the function of downhill deceleration to ensure the driving of special vehicles under severe road conditions. Safety. The downhill reducer realizes the deceleration function of the hydraulic transmission by operating the control lever of the downhill reducer. When the special vehicle goes downhill, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/50
Inventor 李政银
Owner 贵州凯星液力传动机械有限公司
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