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Manufacturing process of double-end internal gear ring for electric forklift transmission

A technology of electric forklift and manufacturing process, which is applied in the direction of manufacturing tools, wheels, vehicle parts, etc. It can solve the problems of high product scrap rate, strong impact resistance, and large investment in equipment, so as to achieve good comprehensive mechanical properties and improve fatigue resistance. , the effect of high technical difficulty

Active Publication Date: 2017-10-10
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

[0003] The present invention aims at the drawbacks of the existing machined electric forklift transmission double-ended internal gear ring, and mainly solves the existing traditional transmission gear shaper, which requires more investment in machine tool equipment, low production efficiency, high manufacturing cost, difficulty in mass production, and due to two gears Welded rings, the deformation is large, the coaxiality is not high, the quality is unstable, and the product scrap rate is high. A manufacturing process for electric forklift transmission double-ended internal gear rings is provided, and it can achieve high density of the base material, Strong impact resistance effect

Method used

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  • Manufacturing process of double-end internal gear ring for electric forklift transmission
  • Manufacturing process of double-end internal gear ring for electric forklift transmission
  • Manufacturing process of double-end internal gear ring for electric forklift transmission

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] see figure 1 and figure 2 As shown, an electric forklift transmission double-ended internal gear ring includes a hollow cylinder with a thickness of 10mm intermediate baffle 7, the intermediate baffle 7 and the cylindrical wall 6 constitute the first central hole 3 and the second central hole 9 respectively, The hole side of the first central hole 3 and the second central hole 9, that is, the inner side of the cylindrical wall 6, is provided with an internal tooth 2. The parameters of the internal tooth 2 are: tooth root diameter Φ126mm, tooth tip diameter Φ134mm, pitch circle diameter Φ130mm, number of teeth 24, pressure The angle is 30 °; the middle baffle 7 and the cylindrical wall 6 are integral structures; the middle baffle 7 is provided with a central through hole 4 and eight internal through holes 5 evenly distributed around the central ...

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Abstract

The invention discloses a making technology for a transmission double-end internal-teeth ring of an electric forklift. The making technology comprises the following steps: 1, performing warm forging and plastic molding: 2, spheroidizing annealing; 3, performing blank making, shot blasting and saponifying; 4, performing cold-extruding on internal teeth of a central hole; 5, machining; 6, performing salt bath tufftriding. A product prepared by the technology is stable in quality, small in accumulated errors among the teeth, high in yield, and short in production cycle; the production efficiency is improved; the problem that a traditional transmission gear shaping is large in lathe equipment investment of multiple, low in production efficiency, high in manufacture cost and difficult to realize massive production, is solved, and the defects that the quality of the product is unstable and the rejection rate of the product is high which are caused by the fact that two gear rings are formed by welding and the generated deformation is large, are overcome.

Description

technical field [0001] The invention belongs to the technical field of forging and pressing forming of metal parts, and relates to a manufacturing process of an electric forklift transmission double-end internal gear ring. Background technique [0002] The double-end internal gear ring of electric forklift transmission is a key part that transmits power and is subjected to a large instantaneous force. Both ends of the electric forklift transmission double-end inner gear ring have tooth surfaces inside, and the inner tooth surfaces at both ends transmit power at the same time. The transmission requirements are high, and the manufacturing accuracy and tooth surface strength are high. China Intellectual Property Office has published CN201310427665. 6 The production process of the car transmission parking gear ratchet includes the following steps: ① Warm forging plastic forming: heating the solid cylindrical metal material to the forging temperature, and die forging a hollow cyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/14B21K1/30C21D9/40C21D1/32C23C8/50C23F17/00
CPCB21K1/30B23P15/14C21D1/32C21D9/40C23C8/50C23F17/00
Inventor 张太良万永福
Owner 江苏威鹰机械有限公司
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