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Machining process of motor casing for electric vehicle

A technology for motor casings and electric bicycles, which is applied in the manufacture of motor generators, electric vehicles, motors, etc. It can solve the problems of affecting motor performance, low efficiency, and large labor, and achieve the effects of reducing processing costs, improving performance, and reducing labor.

Inactive Publication Date: 2008-06-04
许志平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that one sand mold in the existing processing technology can only cast one motor shell blank. This process requires a lot of labor, high cost, and low efficiency. In addition, there are inevitably pores in the casting during the sand casting process. Such pores affect the magnetic field of the motor. have an impact on the performance of the motor

Method used

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  • Machining process of motor casing for electric vehicle
  • Machining process of motor casing for electric vehicle
  • Machining process of motor casing for electric vehicle

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Embodiment Construction

[0020] Referring to Fig. 1, the motor casing processing technology for electric bicycle provided by the present invention comprises the following steps:

[0021] A, prepare materials, the section steel that the present invention adopts all is directly custom-made or rolls voluntarily from the steel mill, referring to Fig. 2, adopts rolling process to roll into the elongate section steel 1 identical with motor housing section shape as required, therefore, can Large quantities of profiled steel 1 are available upon request.

[0022] B, cutting material, strip section steel is cut according to the length of motor shell circumference, and it is cut into a section of section steel 1 that is slightly longer than the length of motor shell circumference, and it has been prepared for circle use. The length is slightly longer to allow allowance for subsequent round extrusion and welding steps. In this process, a cutting machine can be used to cut the elongated section steel 1 into sect...

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Abstract

The method includes following steps: a) preparation of materials, with steel rolling process, the material is rolled to strip section steel whose section has same cross sectional shape with case of motor; b) cuts the material according the peripheral length of motor case; c) the cut section steel is made into rounded shape of motor case by using forging pressing; d) welds the joint of rounded steel; e) reshapes the rounded steel to make it reach the required circularity.

Description

technical field [0001] The invention relates to a processing technology for a motor casing, in particular to a processing technology for a motor casing on an electric bicycle. Background technique [0002] The motor housing on the electric bicycle in the prior art is cast into a blank by a wax casting process, and then finished. The production process of this process mainly relies on manual operation. Firstly, the master is made of metal plate according to the actual product sample, and then melted paraffin is poured into the master, and the master model filled with paraffin is put into the freezer to cool down. Finally, take off the master model, take out the motor casing made of paraffin wax, and then roll the motor casing made of paraffin wax on the mortar made of emery and adhesive, then put it in the oven to dry, and then heat it after drying. Melt the paraffin and release it to form a sand mold. The melted molten steel is poured into the sand mold, and after cooling,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/14
CPCY02T10/641Y02T10/64
Inventor 许志平
Owner 许志平