CN210978308U

CN210978308U - Brake clearance automatic adjustment arm with small internal wear

Info

Publication number: CN210978308U
Application number: CN201922144443.9U
Authority: CN
Inventors: 陈福然
Original assignee: Hefei Sowell Auto Parts Co ltd
Current assignee: Hefei Sowell Auto Parts Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-10
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a little brake clearance automatic adjustment arm of inside wearing and tearing in car braking clearance adjusting device technical field, which comprises a housin, the inner chamber right part joint of casing has the thrust gasket, the inner chamber of gasket is provided with the ball among the thrust gasket, the inner chamber left part joint of casing has the worm, the inner chamber right part of worm is opened there is the cross recess, the inner chamber joint of cross recess has coupling spring, the inner chamber joint of worm has the adjustment round bar, the adjustment round bar is located coupling spring's inner chamber, the outer wall right part welding of adjustment round bar has the fixture block, the fixture block is located the inner chamber of cross recess, the right wall welding of adjustment round bar has the limiting plate, the right wall of limiting plate is opened there is the spacing groove, the ball is located the inner chamber of spacing groove, when this device avoids customer installation self-modulation arm, the limiting plate produces the friction with the thrust gasket, reduce installation.

Description

Brake clearance automatic adjustment arm with small internal wear

Technical Field

The utility model discloses a little brake clearance automatic adjustment arm of inside wearing and tearing specifically is car brake clearance adjusting device technical field.

Background

The brake gap automatic adjusting arm is also called an automatic gap adjusting arm or an automatic adjusting arm. The automatic adjusting arm is a mature technology abroad and widely applied, and in recent years, manufacturers of trucks, passenger cars and trailers in Europe, America and other regions have used the automatic adjusting arm as a standard configuration of a whole vehicle

The self-adjusting arm worm uses a novel end face supporting structure, a conical surface contact type thrust washer is used between the end face of the worm and an end face bearing, and surface-to-surface contact is adopted. Because the conical surface matching gasket is used between the worm and the end face bearing, the friction force ratio is larger, the rotating torque of the control arm of the self-adjusting arm worm finished product is larger, and a customer is very hard to install the self-adjusting arm.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a little brake clearance automatic adjustment arm of inside wearing and tearing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a little brake clearance automatic adjustment arm of inside wearing and tearing, includes the casing, the inner chamber right part joint of casing has the thrust gasket, the inner chamber of gasket is provided with the ball among the thrust gasket, the inner chamber left part joint of casing has the worm, open the inner chamber right part of worm has the cross recess, the inner chamber joint of cross recess has coupling spring, the inner chamber joint of worm has the adjustment round bar, the adjustment round bar is located coupling spring's inner chamber, the outer wall right part welding of adjustment round bar has the fixture block, the fixture block is located the inner chamber of cross recess, the right wall welding of adjustment round bar has the limiting plate, the right wall of limiting plate is opened there is the spacing groove, the ball is located the inner chamber of spacing groove.

Preferably, the right wall of the limiting plate is provided with a circular groove, and the circular groove is communicated with the limiting groove.

Preferably, the inner diameter value of the limiting groove is smaller than that of the circular groove.

Preferably, the left wall of the adjusting round rod is welded with a pull rod.

Preferably, the outer wall of the pull rod is provided with a handle groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the device is provided with the thrust washer, the balls, the limiting plate, the limiting groove and the circular groove, when the limiting plate rotates, the balls leave from an inner cavity of the limiting groove and enter the circular groove, sliding friction is formed between the balls and the limiting plate, and the design of the end part of the worm and the thrust washer is changed, so that the friction force is reduced, and the rotation of the worm and the limiting plate is facilitated;

2) this device sets up cross recess, connecting spring, adjustment round bar and fixture block, drives the limiting plate through pulling adjustment round bar and moves towards the direction of worm, and the connecting spring atress is compressed, and the limiting plate separates with thrust washer, rotates adjustment round bar and drives the fixture block and rotate, and the fixture block is located the inner chamber of cross recess, then the rotation of adjustment round bar drives the rotation of worm, when avoiding customer's installation self-modulation arm, the limiting plate produces the friction with thrust washer, reduces installation intensity of labour, the customer installation of being convenient for.

Drawings

FIG. 1 is a front sectional view of the automatic brake clearance adjusting arm with small internal wear according to the present invention;

FIG. 2 is a left side view of the thrust washer of the present invention;

FIG. 3 is a schematic front sectional view of the worm of the present invention;

fig. 4 is the utility model discloses the schematic diagram is looked to the limiting plate right side.

In the figure: 100 cases, 200 thrust washers, 210 balls, 300 worms, 310 cross grooves, 320 connecting springs, 400 adjusting round rods, 410 clamping blocks, 420 limiting plates, 430 limiting grooves, 440 round grooves and 450 pull rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an automatic brake clearance adjusting arm with small internal wear, which avoids the friction between a limiting plate and a thrust washer when a customer installs the self-adjusting arm, reduces the labor intensity of installation, is convenient for the customer to install, and comprises a shell 100 as shown in figure 1;

referring to fig. 1 and 2, a thrust washer 200 is clamped in the right portion of the inner cavity of the housing 100, a ball 210 is disposed in the inner cavity of the thrust washer 200, the ball 210 is clamped in the limiting groove 430, and when the ball 210 is clamped in the limiting groove 430, the thrust washer 200 is fixed to the limiting plate 420;

referring to fig. 1 and 3, a worm 300 is clamped in the left portion of an inner cavity of the housing 100, a cross groove 310 is formed in the right portion of the inner cavity of the worm 300, a connecting spring 320 is clamped in the inner cavity of the cross groove 310, the worm 300 is used for driving a worm wheel to rotate, so that the automatic brake clearance adjusting arm is installed and debugged, the cross groove 310 is used for matching with a fixture block 410 to rotate to drive the worm 300 to rotate, and the connecting spring 320 is used for keeping a limiting plate 420 at the end of an adjusting round rod 400 in close contact with the thrust washer 200;

referring to fig. 1, 3 and 4, an adjusting round rod 400 is clamped in an inner cavity of the worm 300, the adjusting round rod 400 is located in an inner cavity of the connecting spring 320, a fixture block 410 is welded on the right portion of the outer wall of the adjusting round rod 400, the fixture block 410 is located in an inner cavity of the cross-shaped groove 310, a limiting plate 420 is welded on the right wall of the adjusting round rod 400, a limiting groove 430 is formed in the right wall of the limiting plate 420, the ball 210 is located in an inner cavity of the limiting groove 430, the adjusting round rod 400 is used for driving the worm 300 to rotate through the fixture block 410, the adjusting round rod 400 is used for driving the limiting plate 420 to move left and right;

referring to fig. 4, a circular groove 440 is formed on the right wall of the limiting plate 420, the circular groove 440 is communicated with the limiting groove 430, and the circular groove 440 is used for limiting the rolling direction of the ball 210 when the ball 210 leaves the limiting groove 430, so that the ball 210 can rotate to the inner cavity of the next limiting groove 430;

referring to fig. 4 again, the inner diameter of the limiting groove 430 is smaller than the inner diameter of the circular groove 440, so as to reduce the contact area between the circular groove 440 and the ball 210 and reduce the friction between the circular groove 440 and the ball 210;

referring to fig. 1, a pull rod 450 is welded to the left wall of the round adjustment rod 400, so that the round adjustment rod 400 is driven to rotate by rotating the pull rod 450;

referring to fig. 1 again, the outer wall of the pull rod 450 is provided with a pull groove for pulling the pull rod 450 out of the outer wall of the housing 100 by fingers, and after pulling out, the pull rod 450 is directly driven to rotate by rotating the fingers of the palm.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the various embodiments disclosed herein can be used in any combination with one another, and the description of such combinations that is not exhaustive in this specification is merely for brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a little brake clearance automatic adjustment arm of inside wearing and tearing which characterized in that: comprises a shell (100), a thrust washer (200) is clamped at the right part of an inner cavity of the shell (100), the inner cavity of the gasket in the thrust gasket (200) is provided with a ball (210), the left part of the inner cavity of the shell (100) is clamped with a worm (300), a cross groove (310) is formed in the right part of the inner cavity of the worm (300), a connecting spring (320) is clamped in the inner cavity of the cross groove (310), an adjusting round rod (400) is clamped in the inner cavity of the worm (300), the adjusting round rod (400) is positioned in the inner cavity of the connecting spring (320), a fixture block (410) is welded at the right part of the outer wall of the adjusting round rod (400), the fixture block (410) is positioned in the inner cavity of the cross-shaped groove (310), the right wall of adjustment pole (400) has welded limiting plate (420), limiting groove (430) have been opened to the right wall of limiting plate (420), ball (210) are located the inner chamber of limiting groove (430).

2. The automatic brake clearance adjusting arm with small internal wear according to claim 1, wherein: the right wall of the limiting plate (420) is provided with a circular groove (440), and the circular groove (440) is communicated with the limiting groove (430).

3. The automatic brake clearance adjusting arm with small internal wear according to claim 2, wherein: the inner diameter value of the limiting groove (430) is smaller than that of the circular groove (440).

4. The automatic brake clearance adjusting arm with small internal wear according to claim 1, wherein: the left wall of the adjusting round rod (400) is welded with a pull rod (450).

5. The automatic brake clearance adjusting arm with small internal wear according to claim 4, wherein: the outer wall of the pull rod (450) is provided with a handle groove.