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Hydrodynamic clutch shaft heat treatment method

A heat treatment method and clutch shaft technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve problems such as failure to meet product use requirements, material utilization, production efficiency, product performance problems, etc., to ensure reliability and improve fatigue. Strength, the effect of reducing breakage

Inactive Publication Date: 2012-04-04
崔莉莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This heat treatment method is more suitable for shaft parts with small size, but it can no longer meet the requirements of the product for the heat treatment of hydraulic clutch shafts of large-tonnage transmissions with increasing demand.
There are problems in terms of material utilization, production efficiency and product performance.

Method used

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  • Hydrodynamic clutch shaft heat treatment method
  • Hydrodynamic clutch shaft heat treatment method
  • Hydrodynamic clutch shaft heat treatment method

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Embodiment Construction

[0018] The technical solutions of the present invention will be further explained below in conjunction with the drawings and embodiments, but the following content is not intended to limit the protection scope of the present invention.

[0019] This embodiment provides a heat treatment method for a hydraulic clutch shaft:

[0020] 1 overall quenching process

[0021] The processing route adopted by the forklift hydraulic clutch is as follows (material: 20CrMnTi).

[0022] Dimensions of each section of rough car, yes figure 1 , figure 2 The shown clutch shaft is subjected to overall carburizing and quenching treatment; the axial deformation inspection is carried out on the slender shaft; the products whose deformation exceeds the design standard are corrected on the straightening equipment to meet the coaxiality requirements; crack detection is carried out on the straightened products Inspection to prevent cracks after correction; grind the surface of the shaft matching par...

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PUM

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Abstract

The invention discloses a hydrodynamic clutch shaft heat treatment method, which comprises the following steps: 1, an integration quenching technology, wherein a processing technology route used by a hydrodynamic clutch of a forklift truck comprises the following processes: performing rough turning on size of each segment, carrying out integration carburizing and quenching treatment on the clutch shaft, performing axial direction deformation inspection on an elongated shaft; correcting a product which exceeds the design standard of deformation on an aligning device to meet the coaxiality requirement; carrying out crack detection on the aligned product for preventing cracking after correcting; grinding the surface of matching position of shaft to accord with the matching dimension on a drawing; 2, a high frequency surface quenching technology; 3, an intermediate frequency quenching technology. The improvement of the heat treatment process is capable of better raising the fatigue strength of the shaft, minimizing the generation of the fracture, ensuring the reliability of the product and raising the economic benefit.

Description

technical field [0001] The invention relates to a clutch shaft, in particular to a heat treatment method for a hydraulic clutch shaft. Background technique [0002] The hydraulic shift control device has been widely used in construction machinery, and has good self-smoothness, ability to absorb and damp vibration and impact, and it is also light to operate and shift. The hydraulic clutch is one of the important components, and its working performance directly affects the performance of the gearbox. In the existing large-tonnage vehicle gearbox, due to the large size and volume of the gearbox, there are two slender clutch shafts, which transmit a large torque. Moreover, the structure of the two shafts is relatively complicated, and the fatigue of the clutch shaft The service life is closely related to the structure of the shaft and the way of heat treatment. [0003] As one of the important parts of the gearbox, the core component of the forklift, the heat treatment method ...

Claims

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Application Information

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IPC IPC(8): C21D9/28
Inventor 崔莉莉
Owner 崔莉莉