CN2084025U - Drum type improved series hand brake for car - Google Patents

Abstract

The utility model provides a drum type improved series hand brake for car which is used through being matched with each series of cars. The brake is characterized in that the clearance of shoe plate is adjustable by making use of regulating blocks and eccentric ring after the friction sheet is worn; in this way, the utility model has the advantages that service life is greatly extended and brake performance is greatly improved. The utility model belongs to a comparatively ideal hand brake in current nation.

Description

Drum type improved series hand brake for car

The utility model provides a kind of matching used improved type series automobiles of each series automobiles drum-type hand brake that is.

Existing automobile hand brake generally all adopts disc type.This disc type hand brake can't be adjusted behind the friction disc wear, must change, so service life is short the cost height.Even as east wind EQ140 automobile, though adopted the drum-type hand brake, it still exists and adjusts little some disadvantage that waits of wear range on the limitation that only is suitable for this vehicle in the use and the structure.

At the problems referred to above, the purpose of this utility model is to design a kind of being suitable for than the galling scope, long service life, easy to adjust improved type series automobiles drum-type hand brake.

Its principle of work is: glancing impact, control operating rod by transmission device, make the cam translation-angle toward post-tensioning, force two outside spreadings of shoe plate and are close to the purpose that brake wheel reaches braking; During brake off, then control operating rod is moved along to the end, cam is resetted, two shoe plates promptly inwardly shrink by the pulling force of extension spring, make between itself and the brake wheel and form the gap.

Its architectural feature is: remain unchanged with installation dimension and former each serial disc type hand brake of change-speed box and transmission shaft, steering unit is also basic identical with disc type, and this just helps replacing the disc type hand brake.Principal character is that shoe plate adopts partial floating device, fixed a regulating block at symmetrical place, the top of two shoe plates respectively with binding bolt, being used for being close to can be with the cam of swing arm swing, on two symmetrical shoe plates of the two ends of two regulating blocks, respectively be provided with an eccentric ring, behind friction disc wear, be used for adjusting the regulating block position, so that guarantee the be close to effect of regulating block to cam.

Since the architectural feature of the utility model institute tool, thereby make it to have following characteristics:

1, simple and compact for structure, volume is little, in light weight, good looking appearance, dependable performance, noise are little, it is simple and easy to adjust the shoe plate gap, easily keeps the balance between two shoe plates simultaneously again;

2, shoe plate adopts partial floating device, the influence that is not shaken and cause abnormal wearing and tearing, friction lining and brake wheel contact surface are big, wearing and tearing evenly, friction lining can prolong 5～6 times than disc type friction lining service life;

3, brake wheel and shoe plate firm position, rotation is even, and noise is little, and it is loosening that transmission main shaft nut and transmission shaft tie bolt are difficult for, thereby guaranteed the reliability of hand braking performance;

4, be provided with grease proofing device, good airproof performance in the brake wheel makes oil and impurity be difficult for entering in the brake wheel, has kept the spatter property of consumable accessorys such as friction lining.

In sum, the drum-type hand brake after the improvement is current domestic more satisfactory a kind of hand brake.

Be described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is a structural representation of the present utility model, and numbering is respectively among the figure:

1-control operating rod assembly 2-connecting panel 3-Rocker arm 4-pull bar bullet Huang

5-rocking arm pull bar 6-nut 7-spherical nut 8-swing arm

9-connecting pin 10-cam 11-regulating block 12-binding bolt

13-eccentric ring 14-extension spring 15-shoe plate assembly

The utility model system is made of control operating rod assembly 1, connecting panel 2, rocking arm 3, pull-rod spring 4, rocking arm pull bar 5, nut 6, spherical nut 7, swing arm 8, connecting pin 9, cam 10, regulating block 11, binding bolt 12, eccentric ring 13, extension spring 14 and shoe plate assembly 15.

Model: CSZ240 type hand brake

Pattern: mechanical lever is handled, drum-type

240 millimeters of brake drum diameter: φ

Shoe plate width: 40 millimeters

The shoe plate external diameter is adjusted maximum range: 10 millimeters

Shoe plate and maximum permission of brake wheel braking anterior diastema: 3 millimeters, the minimum permission: 0.2～0.25 millimeter.

Brake torque power: about 350 kilograms

Its braking procedure is such: the joystick in the control operating rod assembly 1 is spurred backward, make ratchet wherein on quadrant, move 3～4 teeth, promptly ring 3～4, driving connecting panel 2 upper ends swings to the right the lower end left, and then drive rocking arm 3 and will be enclosed within pull-rod spring 4 top upwards on the rocking arm pull bar 5 by connecting pin 9, head on the swing arm 8 that connects 10 on cam owing to pull-rod spring 4 pressurizeds, make pressure spherical nut 7 thereon swing and drive swing arm 8 and swing the angle that changes cam 10, by with cam 10 near be fixed on regulating block 11 on two shoe plates of shoe plate assembly 15 with binding bolt 12, force two outside spreadings of shoe plate and be close to brake wheel, reach the purpose of braking.

Nut 6 and eccentric ring 13 are used for playing adjusting and equilibrium activity behind the friction disc wear, and extension spring 14 makes two shoe plates reset when then being used for brake off.

Described before connecing, if but spur when joystick, it is not 3～4 teeth that ratchet moves on quadrant, but when surpassing 8 teeth, then should finely tune. backward

Sharply tuned step is: elder generation toward being advanced to the end, promptly loosens stopping brake lock with the joystick in the control operating rod assembly 1, moves 4 teeth more backward; Unscrew nut 6, tighten spherical nut 7 but should notice that pull-rod spring 4 does not allow to be pressed fully, in swing arm 8, can not swing flexibly to avoid spherical nut 7, when tightening certain tightness, with the crow bar of 500 millimeters long not being advisable by rolling brake; , with the past end that is advanced to of joystick, whether the rotation brake drum rotates flexibly, debug repeatedly, till flexibly again; Last fastening nut 6.

If still invalid, must adjust regulating block 11 so through above-mentioned fine setting.Earlier connecting pin 9 is pulled down before adjusting, cam 10 is in vertical position; The rotation brake drum makes adjusts window upwards; Unscrew left and right sides binding bolt 12, with regulating block 11 near cam 10; Tighten respectively one of left and right sides binding bolt 12 with the stove bolt cutter again, unclamp eccentric ring 13 then, eccentric ring 13 and regulating block 11 are left; At this moment firmly force swing arm 8 tail ends 15 millimeter that move down, then loosen making it get back to original position; Whether the rotation brake drum rotates flexibly, flexible, tightens left and right sides binding bolt 12 with the sleeve spanner by 8 millimeters bolt specified torque again; Can make this moment the gap between two friction linings and the brake wheel obtain balance; The past end that is advanced to of joystick, adjust spherical nut 7 again, make rocking arm 3 and rocking arm pull bar 5 under free state, load onto connecting pin 9 and be advisable, last fastening nut 6.

Claims (1)

1. A kind of is the matching used improved type series automobiles drum-type hand brake of being made up of control operating rod assembly 1, connecting panel 2, rocking arm 3, pull-rod spring 4, rocking arm pull bar 5, nut 6, spherical nut 7, swing arm 8, connecting pin 9, cam 10, binding bolt 12, extension spring 14 and shoe plate assembly 15 of each series automobiles, but it is characterized in that two shoe plates in shoe plate assembly 15 the upper end each be fixed with that regulate and the regulating block 11 that be close to cam 10 of along continuous straight runs relatively symmetrically and play spacing and the eccentric ring 13 adjustment effect at its two ends, left and right sides to it respectively.