Gear motor for seat regulating means

A technology of adjusting device and gear motor, applied in electromechanical devices, vehicle seats, transmission devices, etc., can solve the problems of low transmission efficiency of gear motor, low bearing capacity of gear box, low transmission efficiency, etc., and achieve high bearing capacity, strong The effect of load capacity and strong impact resistance

Active Publication Date: 2009-08-05
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of existing products is that the transmission efficiency of the N—N type planetary gear train is very low, so the transmission efficiency of the corresponding gear motor is also very low
Another problem with existing ...

Method used

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  • Gear motor for seat regulating means
  • Gear motor for seat regulating means
  • Gear motor for seat regulating means

Examples

Experimental program
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Embodiment Construction

[0022] figure 2 It is an overall assembly diagram of a preferred embodiment of the gear motor for seat adjustment device of the present invention. As shown in the figure, the gear motor for seat adjustment device of the present invention can be divided into two parts: a motor assembly 40 and a gearbox assembly 50 . image 3 It is a schematic diagram of an exploded structure of a preferred embodiment of a gear motor for a seat adjustment device of the present invention, including a 12V DC motor 11, a worm 13, a worm wheel 14 (with an eccentric wheel embedded therein), a bearing positioning ring 16, a spherical oil-impregnated bearing 17, a gear Box 18, adjusting screw 19 (inserted into the motor shaft), sliding oil bearing 20, inner ring gear 21, washer 22, cycloidal gear 23, bearing 24, turret 25, output gear 26, pin 27, and output gear 26 are fixed Connected rotating shaft 28, output gear bearing 29, case cover 30, screw 31 (M4 size). The motor assembly 40 is composed of a ...

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PUM

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Abstract

The invention provides a gear motor used for a seat adjusting device, comprising a motor and a gearbox; wherein, the gearbox comprises a primary transmission mechanism with a worm rod and a worm wheel which are meshed with each other, a secondary transmission mechanism with an annular gear, a cycloidal gear, an eccentric wheel, a rotation frame and an output gear which is connected with the rotation frame; the worm rod is fixed on a motor shaft and can rotate correspondingly to the motor shaft; the worm wheel is driven by the worm rod and drives the eccentric wheel which is fixed on the worm wheel to rotate; the eccentric wheel and the annular gear lead the cycloidal gear to own autorotation and revolution; and the rotation frame transmits the autorotation of the cycloidal gear to the output gear. The gear motor adopts the cycloidal gear to replace an N-N-typed planetary gear system; and with the same volume, the cycloidal gear has higher bearing capability and higher efficiency. When the cycloidal gear system is used, the load can be shared by a plurality of gear teeth; as multi-pair of wheel teeth are used for mesh, the bending stress exerted on the wheel teeth is reduced. Due to the multi-pair of meshed wheel teeth, the gear motor has higher bearing capability and stronger anti-shock capability.

Description

technical field [0001] The invention relates to a power transmission system, in particular to a gear motor for a seat adjusting device. Background technique [0002] The automatic seat adjustment device is a device that uses the change of current to adjust the front and rear position or height of the seat. When the direction of the current changes, it can move the position of the seat forward or backward or raise or lower the height of the seat to adapt Unlike people, when the power is turned off, the seat can maintain its position without the help of other devices. Usually this kind of automatic seat adjustment device uses a gear motor as its power drive device. The gear motor used in the existing automatic seat adjustment device available on the market has a gear box composed of a two-stage gear train. The mechanism is a worm and a worm gear, and the second-stage transmission mechanism is an N-N type planetary gear train. Such as figure 1 As shown, it is a schematic str...

Claims

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Application Information

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IPC IPC(8): H02K7/116F16H1/02F16H1/20A47C3/00
CPCB60N2002/0236F16H1/32B60N2/0232B60N2/02253B60N2/02246
Inventor 塔静宁徐雪前李峰
Owner JOHNSON ELECTRIC SHENZHEN
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