Lead screw driving quadrilateral movement mechanism of automobile glass lifter

Abstract

The invention discloses a lead screw driving quadrilateral movement mechanism of an automobile glass lifter. The lead screw driving quadrilateral movement mechanism is composed of a driving mechanism,a transmission mechanism and a movement mechanism body; the transmission mechanism comprises a lead screw, a perpendicular guide rail and a transmission nut; and the movement mechanism body comprisesa quadrilateral telescopic net rack set, a sliding block and a horizontal guide rail. According to the mechanism, a traditional worm and gear speed reducer assembly is replaced with a running mode ofthe lead screw and the nut, rotation is changed into linear motion, power is transmitted to a quadrilateral net structure, the power is evenly dispersed, running is stable, the service life of the mechanism is prolonged, the part cost is reduced, and the production and manufacturing technological process of products is simplified. By means of the design, the operation efficiency and stability ofthe glass lifter are greatly improved, and the effects that the manufacturing cost is reduced by about 30%, the weight is reduced by about 20%, the transmission efficiency is improved by about 15%, and the service life is prolonged by about 30% are achieved. The mechanism is simple in manufacturing process and wider in product application range.

Description

technical field [0001] The invention relates to a quadrilateral motion mechanism driven by a screw rod for lifting and lowering automobile glass. In particular, it relates to a quadrilateral movement mechanism driven by screw rods that changes the power transmission mode of a lifter and replaces traditional automobiles. Background technique [0002] After more than 70 years of development, the glass regulator has developed from a manual drive to an electric form, but its transmission structure has not changed much. Existing glass regulators all adopt "rope wheel type" and "wishbone type" structures. The operation mode of the traditional glass lifter is a motor with a gearbox to output the rotational power. One is to drive the rope winding wheel to rotate, and pull the glass bracket through the wire rope to realize the glass moving up and down; the other is to drive the lever through the gear transmission. The lifting arm realizes the up and down movement of the glass. Bot...

AI Technical Summary

Problems solved by technology

Both the wishbone type and the rope pulley type have the following disadvantages: complex structure, low material utilization rate, cumbersome assembly process, heavy weight, difficult standardization, long development cycle, high manufacturing cost, and cannot realize automatic assembly line production. The cost of labor is relatively high, the safety factor of the production process is low, and the traditional lifter is prone to a series of problems such as abnormal noise and short wear life.

Make it difficult to reduce the weight of the vehicle and increase fuel consumption

[0003] We found that the existing domestic automakers have done a lot of research and development work on the improvement of window regulators, but so far no effective replacement products have been launched.

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