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Manufacturing technology of hollow outer gear of electric forklift driving flange

A technology for transmission flanges and electric forklifts, which is applied in the processing technology of flange ring gears. It can solve the problems of high manufacturing accuracy and tooth surface strength, low utilization rate of metal materials, and reduced mechanical strength, so as to achieve stable product quality. , Saving raw materials and shortening the production cycle

Inactive Publication Date: 2015-05-06
江苏威鹰机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hollow external gear of the electric forklift transmission flange has a tooth surface on the outside, which transmits power and has high requirements for transmission. The production efficiency of the method is low, the utilization rate of metal materials is low, the internal structure of the material is loose, the most important thing is that the metal flow line is cut off, the mechanical strength of the product is reduced, tooth damage is prone to occur, the production cycle is long, and the cost is high

Method used

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  • Manufacturing technology of hollow outer gear of electric forklift driving flange
  • Manufacturing technology of hollow outer gear of electric forklift driving flange
  • Manufacturing technology of hollow outer gear of electric forklift driving flange

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Embodiment Construction

[0016] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0017] An electric forklift transmission flange hollow external gear, one end is a flange end 1, the other end is a hollow cylinder 5 with external teeth 4, and the upper part of the outer wall flange end 1 of the hollow cylinder 5 is provided with a circular small boss 2 , there is a transition section between the outer tooth 4 and the flange end 1 on the outer wall of the hollow cylinder 5, the diameter of the central hole 3 of the hollow cylinder 5 is Φ70.2mm, the parameters of the outer tooth 4: root diameter Φ87.8mm, tooth The top diameter is Φ94.36mm, the index circle diameter is Φ92.075mm, the number of teeth is 29, and the tooth taper angle is 30°.

[0018] The manufacturing process of the hollow external gear of the transmission flange of the electric forklift includes the following steps: ① Warm ...

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Abstract

The invention discloses a manufacturing technology of a hollow outer gear of an electric forklift driving flange. The manufacturing technology includes the following steps that material cut-off is performed, skinning is performed, shot blasting is performed, coating is performed, upsetting is performed, a center hole is extruded, spheroidizing annealing is performed, blank making is performed, shot blasting is performed, phosphorus saponification treatment is performed, cold extrusion is performed on outer teeth, turning is performed, carburizing and quenching are performed, surface sand blasting is performed, and cleaning and oiling are performed. The hollow outer gear produced through the technology is stable in quality, and the accumulation error between tooth profiles is small. The finished product rate is high, production efficiency is improved, the production period is short, the method that after hot forging, a machine tool is mainly adopted for machining is replaced, the operation quantity of machine tool machining is reduced, the requirement for precision can be met, the manufacturing cost is lowered, and the manufacturing period is shortened.

Description

technical field [0001] The invention relates to a processing technology of a flange ring gear, in particular to a precision forging extrusion forming production technology of a hollow outer gear of an electric forklift transmission flange. Background technique [0002] The hollow external gear of the transmission flange of the electric forklift is a key part that is installed on the clutch of the electric forklift to transmit power and is subjected to a large instantaneous force. The hollow external gear of the electric forklift transmission flange has a tooth surface on the outside, which transmits power and has high requirements for transmission. The production efficiency of the method is low, the utilization rate of metal materials is low, the internal structure of the material is loose, and the most important thing is that the metal flow line is cut off, the mechanical strength of the product is reduced, tooth damage is prone to occur, the production cycle is long, and t...

Claims

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Application Information

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IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 张太良万永福
Owner 江苏威鹰机械有限公司
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