CN2206867Y

CN2206867Y - Pneumatic disk brake

Info

Publication number: CN2206867Y
Application number: CN 94230618
Authority: CN
Inventors: 赵保瀛
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-10
Filing date: 1994-11-10
Publication date: 1995-09-06
Anticipated expiration: 2004-11-10

Abstract

The utility model relates to a pneumatic disk brake, which relates to the improvement of the structure of the disk brake. The utility model comprises a braking chassis. A spline housing is fixed on the braking chassis. A braking disc is out of the spline housing, and the braking disc is fixed on a transmission spline bush. A friction disc and a stop locking disc are ranged at the outer side of the braking disc in turn. A friction pressure disc, a pressure disc and a pressure frame are ranged at the inner side of the braking disc in turn. A ball bearing which is on a screw bush contacts with the pressure frame. The screw bush connects with a dialing fork by a draw rod. The pressure disc and the pressure frame are fixed into a whole. The pressure disc connects with the friction pressure disc by a pressure plate. The utility model can be widely used on the front and back shafts of various types vehicle, and the utility model has the characteristics of a little members, simple body, easy manufacture, etc.

Description

Pneumatic disk brake

The utility model relates to the improvement of disk type braker structure.

The friction plate of caliper disc brake is block at present, so braking force is less, only can be used on the front axle of car and Light-duty Vehicle; It is bigger, easy to wear to be that friction plate bears pressure again, causes the structure, material and the preparation process that match all very complicated, is unfavorable for popularizing.

The purpose of this utility model is exactly at the problems referred to above, and a kind of air disc brake simple in structure, suitable is provided.

The purpose of this utility model is achieved in that the utility model comprises the braking chassis, braking is fixed with spline housing on the chassis, spline housing is outward a brake disc, brake disc is fixed in the transmission flower and puts, the brake disc outside is aligned in sequence with friction disk, ends lock collar, the brake disc inboard is aligned in sequence with the platen that rubs, pressure disk, pressure frame, ball on the screw-casing contacts with pressure frame, screw-casing is connected with shift fork by pull bar, pressure disk is fixed as one with pressure frame, pressure disk is connected with the platen that rubs by pressing plate, realizes above-mentioned purpose of the present utility model with this.

The utility model adopts the complete-disc overall structure to contact with brake disc, and it is big to apply the braking clamping force, therefore can be widely used on the antero posterior axis of all kinds car; The utility model employing member is few, body is simple, therefore is easy to make, and is beneficial to popularize.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial view of Fig. 1;

Fig. 3 is the structural representation of the relative section between platen and the air chamber of rubbing;

Fig. 4 is the structural representation of the relative section between screw-casing and the pull bar;

Fig. 5 is the structural representation of the relative section between platen and the dashboard of rubbing;

Fig. 6 is the right elevation of Fig. 5;

Fig. 7 is the left view of Fig. 5;

Fig. 8 is the structural representation of trigger;

Fig. 9 is the plan view of Fig. 8.

Below in conjunction with accompanying drawing concrete structure of the present utility model is described further:

The utility model comprises braking chassis 1, braking is fixed with spline housing 2 on the chassis 1, outside the spline housing 2 is brake disc 18, brake disc 18 is fixed on the transmission flower cover 25, brake disc 18 outsides are aligned in sequence with friction disk 22, only lock collar 24, brake disc 18 inboards are aligned in sequence with the platen 14 that rubs, pressure disk 12, pressure frame 9, ball 10 on the screw-casing 4 contacts with pressure frame 9, screw-casing 4 is connected with shift fork 3 by pull bar 5, pressure disk 12 is fixed as one with pressure frame 9, and pressure disk 12 is connected with the platen 14 that rubs by pressing plate 13.

For strengthening the working life of friction disk 22, the platen 14 that rubs, can be respectively arranged with liner 21, liner 17 in the inboard of friction disk 22, the platen 14 that rubs.

Friction disk 22 is fixed in by lock screw 23 and ends on the lock collar 24; Spline housing 2 outer ends are provided with retaining projection 27.

For increase braking force can be provided with between 18, two brake discs 18 of two brake discs is intermediate friction dish 19, and the both sides of intermediate friction dish 19 are respectively liner 20.

For Parking takes place or is convenient in the fortuitous event that prevents the utility model brake failure, can be provided with trigger 7, trigger 7 comprises body 52, has movably pull bar 41 on the body 52, one end of pull bar 41 has link stopper 40, the other end of pull bar 41 is connected with dashboard 11 by drag-line 8, and the drift 34 on the dashboard 11 contacts by the cushion block 15 of roller 33 with the liner 16 on the platen 14 that rubs, and is Returnning spring 30 between dashboard 11 and the braking chassis 1; One side of the torque arm 35 on 52 of the bodies is connected with the Returnning spring on the body 52 37, torque arm 35 opposite sides are connected with the balladeur train on the pull bar 41 42 by bearing pin 38 in the chute 39 of the pull bar on the push rod 36 41, having on the waist axle 49 of body 52 can be with the stopping-receding bench 51 contacted hook 48 of pull bar 41, drift 44 on the afterbody of hook 48 can contact with the roller 45 on the movable clamp 47 on the balladeur train 42, the front portion of hook 48 is provided with Returnning spring 50, so that hook 48 contacts with pull bar 41 all the time.Move position for ease of drift 44, and drift 44 afterbodys are provided with adjusts screw 43.

When using the utility model, the utility model is fixed between the wheel net 26 and wheel hub 28 of wheel; Shift fork 23 is connected with air chamber 29 by rocking arm 32, pull bar 31; Trigger 7 links to each other with foot treadle 6.

A regular event circulation of narration the utility model break below.

During the air chamber inflation, drive screw-casing 4 and rotate by pull bar 31, rocking arm 32, shift fork 3, pull bar 5, the ball 10 just helicoid on the screw-casing 4 is done axial motion, force 9 pairs of pressure disk 12 of pressure frame, the platen 14 that rubs, brake disc 18, friction disk 22, end lock collar 24 application of forces, because stopping of the projection 27 of spline housing 2, brake disc 18 is just tightly clamped by friction disk 22, the platen 14 that rubs, and has both realized braking action of the present utility model; When air chamber was exitted, pull bar 5 set back, screw-casing 4 counter-rotating, by ball 10 drive pressure frames 9, pressure disk 12 sets back, pressure disk 12 sets back by pressing plate 13 platen 14 that will rub, brake disc 18 is no longer clamped thereupon, has promptly eliminated braking action.

The course of action of trigger 7: torque arm 35 is applied pulling force, push rod 36 makes balladeur train 42 to link stopper 40, link stopper 40 makes that pull bar 41 moves, the head of hook 48 is fallen stopping-receding bench 51 places, and the drift 44 of the afterbody of hook 48 contacts with the roller on the clamp 47 45, at this moment, drag-line 8 is tightened up, balladeur train 42 resets under return spring 37 effects, and drag-line 8 affects dashboard 11 to overcome the power of Returnning spring 30, and dashboard 11 is rotated, roller 33 is in drift 34 lowers, and liner 16 different braking dishes 18 contact; In case during the utility model brake failure or when needing Parking, torque arm 35 is applied pulling force once more, 36 pairs of balladeur train 42 application of forces of push rod, roller 45 on the clamp 47 can not be again around axle 46 swings, roller 45 advances along drift 44, press down the afterbody of hook 48, the front end of hook 48 overcomes Returnning spring 50 effects and is lifted, leaves stopping-receding bench 51, drag-line 8 no longer is tightened up, rotate at Returnning spring 30 effect lower-pilot dishes 11, roller 33 is in drift 34 eminences, and liner 16 contacts with brake disc 18, just can play braking action.

Claims

1, air disc brake comprises braking chassis 1, it is characterized in that braking and be fixed with spline housing 2 on the chassis 1, outside the spline housing 2 is brake disc 18, brake disc 18 is fixed on the transmission flower cover 25, brake disc 18 outsides are aligned in sequence with friction disk 22, end lock collar 24, brake disc 18 inboards are aligned in sequence with the platen 14 that rubs, pressure disk 12, pressure frame 9, ball 10 on the screw-casing 4 contacts with pressure frame 9, screw-casing 4 is connected with shift fork 3 by pull bar 5, pressure disk 12 is fixed as one with pressure frame 9, and pressure disk 12 is connected with the platen 14 that rubs by pressing plate 13.

2, air disc brake according to claim 1 is characterized in that friction disk 22, the inboard of the platen 14 that rubs is respectively arranged with liner 21, liner 17.

3, air disc brake according to claim 1 is characterized in that friction disk 22 is fixed in only on the lock collar 24 by lock screw 23.

4, air disc brake according to claim 1 is characterized in that spline housing 2 outer ends are provided with retaining projection 27.

5, air disc brake according to claim 1, it is characterized in that being provided with between 18, two brake discs 18 of two brake discs is intermediate friction dish 19.

6, air disc brake according to claim 5 is characterized in that the both sides of intermediate friction dish 19 are respectively liner 20.

7, air disc brake according to claim 1, it is characterized in that being provided with trigger 7, trigger 7 comprises body 52, has movably pull bar 41 on the body 52, one end of pull bar 41 has link stopper 40, the other end of pull bar 41 is connected with dashboard 11 by drag-line 8, and the drift 34 on the dashboard 11 contacts by the cushion block 15 of roller 33 with the liner 16 on the platen 14 that rubs, and is Returnning spring 30 between dashboard 11 and the braking chassis 1; One side of the torque arm 35 on 52 of the bodies is connected with the Returnning spring on the body 52 37, torque arm 35 opposite sides are connected with the balladeur train on the pull bar 41 42 by bearing pin 38 in the chute 39 of the pull bar on the push rod 36 41, having on the waist axle 49 of body 52 can be with the stopping-receding bench 51 contacted hook 48 of pull bar 41, drift 44 on the afterbody of hook 48 can contact with the roller 45 on the movable clamp 47 on the balladeur train 42, the front portion of hook 48 is provided with Returnning spring 50, so that hook 48 contacts with pull bar 41 all the time, move position for ease of drift 44, and drift 44 afterbodys are provided with adjusts screw 43.