CN200939872Y

CN200939872Y - Automobile auxiliary brake device

Info

Publication number: CN200939872Y
Application number: CN 200620045193
Authority: CN
Inventors: 夏培根
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-26
Filing date: 2006-08-26
Publication date: 2007-08-29
Anticipated expiration: 2016-08-26

Abstract

The utility model discloses a secondary automobile braking device comprising an undercarriage, a rocker arm, an electromagnetic valve, an air cylinder assembly, an inertia switch, a limit switch and a reset switch. The undercarriage is connected with the vehicle body with the rocker arm. One assembly end of the air cylinder is connected with the vehicle body; and the other end of the air cylinder is connected with the undercarriage. The electromagnetic valve and the inertia switch are positioned on the vehicle body. The limit switch and the reset switch are positioned in the cab. The inertia switch, the limit switch and the reset switch are connected with the electromagnetic valve through the wire. The utility model increases the vehicle body-to-ground friction points, shortens the brake distance, reduces and prevents the accidents from happening and guarantee the traffic safety.

Description

Automobile auxiliary brake device

Technical field

The utility model relates to automobile technical field, specifically a kind of automobile auxiliary brake device.

Background technology

Along with the develop rapidly of express highway, road transport had critical role already in whole carrier.The development of especially large-scale transportation lorry also is with rapid changepl. never-ending changes and improvements, is characterized in that dead-weight capacity is big, and tractive output is big, and road speed is fast.High capacity waggon is because its large-tonnage, high-speed characteristics, particularly at wet and slippery ice and snow road, dash forward when meeting emergency in the driving, because the huge force of inertia of load, produce a huge forward thrust, thereby cause practical problemss such as driving is out of control, prolongation braking distance easily, and this problem causes the inducement of train operation accident just.Especially container semi-trailer, forebody when emergency braking, because the effect, particularly trailer of force of inertia produce a very big thrust to main car, thereby make the problems referred to above even more serious outstanding by the braking force braking of tractor truck.

Summary of the invention

The purpose of this utility model is a kind of automobile auxiliary brake device that provides at the deficiencies in the prior art, and it can improve travel safety, and the minimizing accident takes place.

The purpose of this utility model is achieved in that

A kind of automobile auxiliary brake device, comprise alighting gear, rocking arm, electromagnetic valve, cylinder assembly, inertia switch, limit switch, reset switch, alighting gear is connected with car body by rocking arm, cylinder assembly one end is connected with car body, one end is connected with alighting gear, and electromagnetic valve, inertia switch are located on the car body, and limit switch, reset switch are located in the operator's compartment, inertia switch, limit switch are connected with electromagnetic valve by lead, and reset switch is connected with cylinder assembly.

Described alighting gear upper end is arranged with hanger, brake pump and is hinged with wheel seat.

Described wheel seat is " L " type, and the one end is hinged on the alighting gear, and the other end is fixed on the alighting gear by elastic axis, is set with spring on the elastic axis; On the wheel seat brake assembly is housed, corner is provided with wheel shaft, wheel shaft is provided with brake wheel.

Described brake wheel comprises wheel rim, tire, and wheel rim is contained on the wheel shaft, and tire sleeve is contained on the wheel rim, and the both sides of wheel rim are provided with platen and fastening with screw.

Described brake assembly comprises brake facing, brake disc, is fixedly connected with sprocket wheel on brake disc and the platen respectively, and chain is housed on the sprocket wheel.

Described cylinder assembly comprises cylinder cap, piston rod, and piston rod is located on the cylinder cap and is connected with latch hook, and cylinder cap is provided with draw-in groove.

Described brake assembly or be located on the platen.

The utility model has increased car body and ground-surface friction point, can shorten braking distance, reduces and avoids accident to take place, and has guaranteed traffic safety.

Description of drawings

Fig. 1 is the structural representation that the utility model combines with car body

Fig. 2 is the utility model landing gear structure scheme drawing

Fig. 3 is Fig. 2 birds-eye view

Fig. 4 is the utility model brake wheel structural representation

Fig. 5 is another embodiment scheme drawing of the utility model brake wheel

Fig. 6 is the cylinder assembly structural representation

The specific embodiment

Consult Fig. 1, Fig. 2, Fig. 3, the utility model is work like this: car body 1 is provided with limit switch 9, inertia switch 27, two switches can be set arbitrarily, be example explanation working process with limit switch 9 below: when automobile emergency brake, the limit switch 9 that is positioned at operator's compartment is touched, open electromagnetic valve 13, hanger 20 on the alighting gear 5 breaks away from, open cylinder assembly 11 simultaneously, promote alighting gear 5 and descend, brake wheel 19 is landed, under the effect of friction force, brake wheel 19 moves to right, drive wheel seat 6 counter-clockwise swings, make the top of wheel seat 6 press to brake pump 4, brake assembly 21 is by sprocket wheel 25, chain 26 makes brake wheel 19 brakings.After the emergency brake state is eliminated, can cylinder assembly 11 be resetted by the reset switch 10 in the operator's compartment, regain alighting gear 5, the hanger 20 on the alighting gear 5 be locked, and it is locked with cylinder that the latch hook 29 on the cylinder assembly 11 is positioned at draw-in groove 28.

Consult Fig. 4, brake disc 31 is fixedly connected with sprocket wheel 25 respectively with platen 14, is connected with chain 26 on the sprocket wheel 25, and brake assembly 21 acts on sprocket wheel 25 through chain 26 and makes brake wheel 19 brakings.

Consult Fig. 5, another embodiment of the utility model is that brake assembly 21 is coaxial with wheel shaft 12, and this moment, brake assembly 21 was fixed on the platen 14.

Consult Fig. 6,, have only when the active force in the cylinder makes cylinder moving because cylinder assembly 11 adopts the mechanical type self-locking, the cylinder self-locking device just can be opened, and can't open the cylinder self-locking device under external force, thus improved the reliability of system, prevent misoperation.Said cylinder assembly 11 also is applicable to oil cylinder in the utility model.

Claims

1, a kind of automobile auxiliary brake device, it is characterized in that it comprises alighting gear (5); rocking arm (3); electromagnetic valve (13); cylinder assembly (11); inertia switch (27); limit switch (9); reset switch (10); alighting gear (5) is connected with car body by rocking arm (3); cylinder assembly (11) one ends are connected with car body; an end is connected with alighting gear (5); electromagnetic valve (13); inertia switch (27) is located on the car body; limit switch (9); reset switch (10) is located in the operator's compartment; inertia switch (27); limit switch (9) is connected with electromagnetic valve (13) by lead, and reset switch (10) is connected with cylinder assembly (11).

2, automobile auxiliary brake device according to claim 1 is characterized in that described alighting gear (5) upper end is arranged with hanger (20), brake pump (4) and is hinged with wheel seat (6).

3, automobile auxiliary brake device according to claim 2 is characterized in that wheel seat (6) is " L " type, and the one end is hinged on the alighting gear (5), and the other end is fixed on the alighting gear (5) by elastic axis (8), is set with spring (7) on the elastic axis (8); Brake assembly (21) is housed on the wheel seat (6), corner is provided with wheel shaft (12), wheel shaft (12) is provided with brake wheel (19).

4, automobile auxiliary brake device according to claim 3, it is characterized in that described brake wheel (19) comprises wheel rim (23), tire (24), wheel rim (23) is contained on the wheel shaft (12), tire (24) is sleeved on the wheel rim (23), and the both sides of wheel rim (23) are provided with platen (14) and fastening with screw (15).

5, automobile auxiliary brake device according to claim 3, it is characterized in that described brake assembly (21) comprises brake facing (30), brake disc (31), be fixedly connected with sprocket wheel (25) respectively on brake disc (31) and the platen (14), chain (26) is housed on the sprocket wheel (25).

6, automobile auxiliary brake device according to claim 1, it is characterized in that described cylinder assembly (11) comprises cylinder cap (22), piston rod (18), piston rod (18) is located on the cylinder cap (22) and is connected with latch hook (29), and cylinder cap (22) is provided with draw-in groove (28).

7, automobile auxiliary brake device according to claim 3 is characterized in that described brake assembly (21) or is located on the platen (14).