CN210531472U

CN210531472U - Braking force enhancing device

Info

Publication number: CN210531472U
Application number: CN201920809293.6U
Authority: CN
Inventors: 任博; 林国贤; 滕瑞静; 王勇; 宋敬涛
Original assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Current assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-15
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a braking force reinforcing device, mainly include the motor, motor gear, the intermediate gear, output gear, the intermediate gear is duplicate gear, upper gear and output gear meshing, lower floor's gear and motor gear meshing, motor gear installs on the motor, the moment of torsion of motor output is transmitted to output gear through the intermediate gear, output gear passes through the key and is connected with the screw, and transmit the moment of torsion to the screw through the key, the lead screw is connected with the screw cooperation, be used for changing the moment of torsion of screw into the thrust of lead screw and make the horizontal motion of lead screw; the intermediate gear is arranged on the intermediate shaft through an intermediate bearing; the nut is limited and installed in the bearing through a retainer ring. The utility model discloses make the change to the hookup location of screw and lead screw, provide a safer braking force reinforcing means who has the cost advantage more, effectively reduce the manufacturing cost of part, reduce the production technology degree of difficulty of part simultaneously, and then improve automobile parts's production efficiency.

Description

Braking force enhancing device

Technical Field

The utility model relates to an automobile parts's field, concretely relates to braking force reinforcing means.

Background

The braking device on the market at present usually adopts the mode of outband tooth portion on the screw to realize the transmission of moment of torsion, and the screw can be at the same time the straight line on this wheel removal, reaches the effect that still can provide brake fluid pressure when failing. The technical scheme has certain defects, and the screw rod and the nut are easy to block in the condition of wear of the nut due to the adoption of the mode of the whole sliding of the screw rod and the nut, and the length of the nut needs to be increased to meet the specific use requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a braking force reinforcing means.

The purpose of the utility model is accomplished through following technical scheme: the braking force enhancing device mainly comprises a motor, a motor gear, an intermediate gear and an output gear, wherein the intermediate gear is a duplicate gear, an upper gear is meshed with the output gear, a lower gear is meshed with the motor gear, the motor gear is installed on the motor, torque output by the motor is transmitted to the output gear through the intermediate gear, the output gear is connected with a nut through a key and transmits the torque to the nut through the key, and a screw rod is connected with the nut in a matched mode and used for converting the torque of the nut into thrust of the screw rod and enabling the screw rod to move horizontally.

Furthermore, the screw rod is provided with an anti-rotation mechanism.

Furthermore, the nut is limited and installed in the bearing through a check ring.

Further, the intermediate gear is mounted on the intermediate shaft through an intermediate bearing.

The utility model has the advantages that: the connection position of the screw and the screw rod is changed, the braking force enhancing device which is safer and has the cost advantage is provided, the production cost of parts is effectively reduced, the production technical difficulty of the parts is reduced, and the production efficiency of automobile parts is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural sectional view of the present invention.

Description of reference numerals: the device comprises a motor 1, a motor gear 2, an intermediate gear 3, an output gear 4, a bearing 5, an intermediate shaft 6, an intermediate bearing 7, an anti-rotation mechanism 8, a nut 9, a retainer ring 10, a screw rod 11 and a key 12.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawings, the braking force enhancing device mainly comprises a motor 1, a motor gear 2, an intermediate gear 3 and an output gear 4, wherein the intermediate gear 3 is a duplicate gear, an upper layer gear is meshed with the output gear 4, a lower layer gear is meshed with the motor gear 2, the motor gear 2 is installed on the motor 1, torque output by the motor 1 is transmitted to the output gear 4 through the intermediate gear 3, the output gear 4 is connected with a nut 9 through a key 12 and transmits the torque to the nut 9 through the key 12, and a screw rod 11 is connected with the nut 9 in a matched manner and used for converting the torque of the nut 9 into thrust of the screw rod 11 and enabling the screw rod 11 to move horizontally; the intermediate gear 3 is arranged on an intermediate shaft 6 through an intermediate bearing 7; the nut 9 is limited and installed in the bearing 5 through a retainer ring 10.

Preferably, the screw rod 11 is provided with an anti-rotation mechanism 8 which can resist the torsion of the nut 9, so that the torque of the nut 9 is completely converted into the horizontal movement of the screw rod 11 without rotation.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. A braking force enhancement device characterized by: the motor mainly comprises a motor (1), a motor gear (2), an intermediate gear (3) and an output gear (4), wherein the intermediate gear (3) is a duplicate gear, an upper gear is meshed with the output gear (4), a lower gear is meshed with the motor gear (2), the motor gear (2) is installed on the motor (1), torque output by the motor (1) is transmitted to the output gear (4) through the intermediate gear (3), the output gear (4) is connected with a nut (9) through a key (12), the torque is transmitted to the nut (9) through the key (12), a screw rod (11) is connected with the nut (9) in a matched mode, and the torque of the nut (9) is converted into thrust of the screw rod (11) and the screw rod (11) moves horizontally.

2. The braking force intensifying apparatus as set forth in claim 1, characterized in that: the screw rod (11) is provided with an anti-rotation mechanism (8).

3. The braking force intensifying apparatus as set forth in claim 1, characterized in that: the nut (9) is limited and installed in the bearing (5) through a retainer ring (10).

4. The braking force intensifying apparatus as set forth in claim 1, characterized in that: the intermediate gear (3) is arranged on the intermediate shaft (6) through an intermediate bearing (7).