Gearing reducer made of magnesium alloy for electric children vehicle, and art for commercialized prodn. of same

A technology for gear reduction boxes and electric baby carriages, which is applied to vehicle gearboxes, vehicle parts, wheel transmissions, etc., and can solve the problems of electric baby carriages that cannot be used normally, reduction boxes that cannot work normally, and high mold manufacturing costs, and achieve simple structure , Saving heating energy consumption, the effect of simple manufacturing process

Inactive Publication Date: 2007-11-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the gears in the traditional electric stroller gear reduction box are made of plastic materials and made by injection molding process, so the manufacturing process is complicated, the mold manufacturing cost is high, and the gears are easy to wear, so that the reduction box cannot work normally. In the end, the electric stroller cannot be used normally and because the plastic contains lead, a chemical element harmful to the human body, long-term use will not only cause harm to human health, but also pollute the environment. A magnesium alloy gear reducer for electric strollers and its mass production manufacturing process

Method used

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  • Gearing reducer made of magnesium alloy for electric children vehicle, and art for commercialized prodn. of same
  • Gearing reducer made of magnesium alloy for electric children vehicle, and art for commercialized prodn. of same

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specific Embodiment approach 1

[0006] Specific Embodiment 1: This embodiment is described in conjunction with FIG. 1 . The electric stroller magnesium alloy gear reduction box of this embodiment consists of a housing composed of a base 3-1 and an outer cover 3-2, a motor 1, a main transmission gear 2, a thin gear, The thick gear, the gear shaft 6, the first shaft 7, the second shaft 8, the third shaft 9, the first positioning device, the second positioning device, and the third positioning device; the thin gear is composed of the first thin gear 4- 1. The second thin gear 4-2 and the third thin gear 4-3; the thick gear is composed of the first thick gear 5-1 and the second thick gear 5-2; the motor 1 is fixed on the base of the housing 3-1 on the outer panel, the output shaft 1-1 of the motor 1 is installed in the housing, the output shaft 1-1 of the motor 1 is equipped with the main transmission gear 2, the main transmission gear 2 and the outer surface of the first thin gear 4-1 The ring gear meshes, the ...

specific Embodiment approach 2

[0008] Specific embodiment two: This embodiment is described in conjunction with Fig. 1. The first positioning device of this embodiment is composed of a first positioning sleeve 10-1, a first positioning pad 10-2, and a second positioning pad 10-3; The first positioning sleeve 10-1 is housed on the first shaft 7 between the outer cover 3-2 and the first thick gear 5-1, and the first shaft between the base 3-1 of the housing and the first thick gear 5-1 7 is equipped with a first positioning pad 10-2, and the first thick gear 5-1 between the first thin gear 4-1 and the second thin gear 4-2 is equipped with a second positioning pad 10-3. Using the sawn metal tube as the first positioning sleeve 10-1 and cooperating with the first positioning pad 10-2 and the second positioning pad 10-3 (using standard washers) can realize the fast positioning of the first thick gear 5-1. Axial positioning. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0009] Specific embodiment three: This embodiment is described in conjunction with FIG. 1. The second positioning device of this embodiment is composed of a second positioning sleeve 11-1, a third positioning pad 11-2, and a fourth positioning pad 11-3; The second positioning sleeve 11-1 is housed on the second shaft 8 between the outer cover 3-2 and the second thick gear 5-2, and the second shaft between the base 3-1 of the housing and the second thick gear 5-2 The third positioning pad 11-2 is housed on 8, and the fourth positioning pad 11-3 is housed on the second thick gear 5-2 between the second thin gear 4-2 and the third thin gear 4-3. Adopt the sawn metal tube as the second positioning sleeve 11-1 and cooperate with the third positioning pad 11-2 and the fourth positioning pad 11-3 (using standard washers) to realize the rapid operation of the second thick gear 5-2. Axial positioning. Other components and connections are the same as those in the first embodiment.

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Abstract

A speed reducer with Mg-alloy gears for electric child car features that the external toothed ring of the 1st thick gear is engaged with the internal toothed ring of the 1st thin gear and the external toothed ring of the 2nd gear, the external toothed ring of the 2nd thick gear is engaged with the internal toothed ring of the 2nd gear and the external toothed ring of the 3rd thin gear, and the internal toothed ring of the 3rd thin gear is engaged with the gear shaft. Its manufacture technology includes such steps as blanking, cold punch of thin gears, hot punch of thick gears, hot squeeze of gear shaft and surface treatment.

Description

technical field [0001] The invention relates to a gear reduction box for an electric baby carriage and a manufacturing process thereof, in particular to a magnesium alloy gear reduction box for an electric baby carriage and a mass production manufacturing technology thereof. Background technique [0002] At present, the annual output of baby carriages in my country has reached 35 million, of which nearly 10 million are electric baby carriages. The gear reducer is the core component of the electric stroller. The quality and service life of the reducer play a decisive role in the use and sales of the electric stroller. The gears in the traditional electric stroller gear reducer are made of plastic materials and are made by injection molding process. The manufacturing process is complicated, the mold manufacturing cost is high, and the gears are easy to wear, so that the reducer cannot work normally, and eventually the electric stroller cannot be used normally; and Since plast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M11/00
Inventor 王少纯
Owner HARBIN INST OF TECH
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