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

A technology of gear reduction box and electric baby carriage, which is applied in the direction of vehicle gearbox, vehicle parts, wheel transmission device, etc., can solve the problems that electric baby carriage cannot be used normally, the reduction box cannot work normally, and the mold manufacturing cost is high, and the structure is simple. , the effect of saving heating energy consumption and simple manufacturing process

Inactive Publication Date: 2006-04-12
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
  • 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 implementation mode one: combine figure 1 Describe this embodiment, the magnesium alloy gear reduction box of the electric stroller of this embodiment is composed 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, a thick gear, a gear shaft 6, a second A shaft 7, a second shaft 8, a third shaft 9, a first positioning device, a second positioning device, and a third positioning device; the thin gear is composed of a first thin gear 4-1, a second thin gear 4- 2. 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 outer panel of the base 3-1 of the housing, The output shaft 1-1 of the motor 1 is installed in the casing, the output shaft 1-1 of the motor 1 is equipped with the main transmission gear 2, the main transmission gear 2 meshes with the outer ring gear of the first thin gear 4-1, and the first thin gear 4-1 i...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 Describe this embodiment, the first positioning device of this embodiment is made up of first positioning sleeve 10-1, first positioning pad 10-2, second positioning pad 10-3; The first positioning sleeve 10-1 is installed on the first shaft 7 between the gears 5-1, and the first positioning pad 10 is installed on the first shaft 7 between the base 3-1 of the housing and the first thick gear 5-1. -2, 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 implementation mode three: combination figure 1 Describe this embodiment, the second positioning device of this embodiment is made up of second positioning sleeve 11-1, third positioning pad 11-2, fourth positioning pad 11-3; A second positioning sleeve 11-1 is installed on the second shaft 8 between the gears 5-2, and a third positioning pad 11 is installed on the second shaft 8 between the base 3-1 of the housing and the second thick gear 5-2. -2, the second thick gear 5-2 between the second thin gear 4-2 and the third thin gear 4-3 is equipped with a fourth positioning pad 11-3. 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 compositions and connections are the same as in the specific 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 Applications(China)
IPC IPC(8): B62M11/00
Inventor 王少纯
Owner HARBIN INST OF TECH
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