CN201236908Y - Electric disc type thread brake - Google Patents

Abstract

The utility model relates to an electric disk type thread brake. A guiding pin is fixed on a brake caliper and extends into a guiding hole on the support of the brake caliper, a return circlip is arranged between two lining pads, a thread screw is installed on the cylinder wall of the brake caliper, one end of the thread screw is connected with the output shaft of a motor through a key, the other end thereof is connected with a nut propelling rod through threads, the nut propelling rod is installed in the brake caliper through the axial guiding pin and guiding groove, and the end surface of the nut propelling rod is acted on the spacers of the lining pads. Because the thread brake transmits electricity but not hydraulic oil or air, a plurality of pipelines and sensors can be eliminated, the brake response time can be shortened, and the braking performance can be greatly enhanced; and the structure of the entire braking system is simple. Therefore, the mass of the entire system is reduced; electrical wires are adopted for connection, and the lasting quality of the system is good; the thread brake is easy to improve, and various electric control functions can be added after slight improvement.

Description

Electric disc screw thread break

Technical field

The utility model relates to automotive disc brake, is specifically related to motorcar electric disc type screw thread break, and its braking force is provided by motor.

Background technique

State's inner brake generally adopts traditional disc type air-pressure brake or hydraulic braking at present, although this break have bearing capacity strong, transmit distance, simple in structure, control is convenient, but shortcoming is also fairly obvious, and promptly pipeline is long, the fluid running resistance is big, action lags behind etc.

The model utility content

At the prior art above shortcomings, the purpose of this utility model provides the electric disc screw thread break that a kind of structure is more simple, the response time is short.

The technical solution of the utility model is achieved in that electric disc screw thread break, it comprises brake calipers, brake-caliper support, lining pad and lining pad liner, be fixed with guide finger on the brake calipers, guide finger stretches in the pilot hole on the brake-caliper support, be provided with the jump ring that resets between two lining pads, it is characterized in that: it also comprises thread screw and nut push rod, thread screw by Bearing Installation on the brake calipers casing wall, thread screw one end is connected by key with motor output shaft, the other end is threaded with the nut push rod, the nut push rod is installed in the brake calipers by axial guide finger and guiding groove, nut push rod end-acted on the lining pad liner.

The utility model is owing to adopt technique scheme, because its transmission is electricity, rather than hydraulic oil or pressurized air, can omit many pipelines and sensor, shorten reaction time.This as can be seen electrical brake system has the incomparable advantage of other traditional braking control system on the structure:

A) whole brake system structure is simple, has saved parts such as braking fuel tank in the traditional braking system, brake master cylinder, power assisting device, hydrovalve, complicated pipelines system, and complete vehicle quality is reduced;

B) braking response time weak point has improved braking ability greatly;

C) brakeless liquid is safeguarded simple;

D) system synthesis manufacturing, assembling, test simple and fast, the braking sub-assembly is a modular construction;

E) adopt electric wire to connect, system durability can be good;

F) be easy to improve, improving a little just to increase various electric control functions.

Description of drawings

Fig. 1-the utility model structural representation;

Fig. 2-the utility model main parts size thread screw structural drawing;

Fig. 3-Fig. 2 A-A sectional view;

Fig. 4-the utility model main parts size nut push rod structural drawing;

Fig. 5-Fig. 4 plan view.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1, from the figure as can be seen, the utility model motorcar electric disc type screw thread break, comprise brake calipers 4, brake-caliper support 7, lining pad 9, lining pad liner 8, thread screw 3 and nut push rod 12, bolt 5 is fixed on guide finger 6 on the brake calipers 4, brake-caliper support 7 is fixed on the vehicle frame, and guide finger stretches in the pilot hole on the brake-caliper support 7, and brake-caliper support 7 is undertaken spacing by 6 pairs of brake caliperss of guide finger 4.Thereby brake-caliper support 7 and brake calipers 4 are by the motion of the motion limiting friction pad 9 of guide-track groove limiting friction pad liner 8, and two lining pads 9 reset by jump ring 10.Thread screw 3 one ends are connected by key 1 with motor output shaft 2, and the other end is threaded with nut push rod 12.Be cast with axially directed pin on the nut push rod 12, brake calipers is provided with the guiding groove corresponding with guide finger, nut push rod 12 is installed in the brake calipers 4 by guide finger and guiding groove, limit nut push rod 12 with this and make axial rotation, rotatablely moving of thread screw 3 become the straight line motion of nut push rod 12, and nut push rod 12 is end-acted on lining pad liner 8, promotes 8 motions of lining pad liner in nut push rod 12 straight line motion processes.Thread screw 3 is installed on brake calipers 4 casing walls by load bearing 11 radially, the reaction force of the rotation of thread screw 3 and the lining pad 9 that thread screw 3 is subjected to when bearing braking when radially load bearing 11 is realized braking.

Thread screw 3 structures are seen Fig. 2 and Fig. 3; Nut push rod 12 structures are seen Fig. 4 and Fig. 5.

Because existing hydraulic brake technology is quite ripe, so the utility model utilizes motor that braking force is provided and replaces existing air-pressure brake or hydraulic braking force, thereby designs the disc type electric machine screw thread drive-in break that is applicable to electric control.Brake slipper of the present utility model, brake disc and hydraulic brake are general, and motor case and vehicle frame are fixed.During work, motor rotates the output torque and drives the thread screw rotation and pass to the nut push rod by screw thread, does straight line motion at the restriction lower nut push rod of key, simultaneously institute's torque suspension is become radially reasoning power, promotes lining pad, realizes braking.

Claims (1)

1. An electric disc threaded brake, which includes a brake caliper (4), a brake caliper bracket (7), a friction pad (9) and a friction pad lining (8), and the brake caliper (4) is fixed with The guide pin (6), the guide pin (6) extends into the guide hole on the brake caliper bracket (7), and a return clip spring (10) is arranged between the two friction pads (9), and it is characterized in that it also includes The threaded screw (3) and the nut pusher rod (12), the threaded screw (3) are installed on the cylinder wall of the brake caliper (4) through bearings, one end of the threaded screw (3) is connected with the motor output shaft (2) through a key, and the other One end is threadedly connected with the nut push rod (12), and the nut push rod (12) is installed in the brake caliper (4) through the axial guide pin and guide groove, and the end surface of the nut push rod (12) acts on the friction pad lining on the sheet (9).

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