CN201220657Y

CN201220657Y - Vehicle brake device based on aerodynamic force

Info

Publication number: CN201220657Y
Application number: CNU2008200125308U
Authority: CN
Inventors: 陈岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-05
Filing date: 2008-05-05
Publication date: 2009-04-15
Anticipated expiration: 2018-05-05

Abstract

The utility model discloses a vehicle brake auxiliary device, and particularly relates to a vehicle brake device based on aerodynamic force. An air speed brake is pivoted on the upper part of the vehicle body; a support cylinder connected with an aerodynamic device is arranged between the air speed brake and the vehicle body; and an electromagnetic valve connected with a vehicle-borne power supply and a control switch is connected between the aerodynamic device and the support cylinder. When a hard brake is required to be applied in an emergency, the support cylinder is inflated after the electromagnetic valve is opened by the control switch, so that the air speed brake arranged at the upper part of the vehicle body can be rotationally lifted at a certain angle; and the resistance, which prevents the vehicle from going forward and is formed by the acting force produced by the air to the air speed brake, can apply the brake to the whole vehicle body, thereby ensuring the smoothness of the vehicle in the brake process and controlling swerves and sideslips, so that the safety performance of the vehicle during the emergency brake is improved.

Description

Based on aerodynamic vehicle brake device

Technical field

The present invention relates to a kind of vehicle brake auxiliary device, particularly a kind of based on aerodynamic vehicle brake device.

Background technology

Along with the continuous lifting of train speed and the birth of novel high speed train, make that existing brake modes is not ideal enough, even the braking task of not competent new type train." regulations of railway technical operation " regulation that China is existing, " emergency stopping distance of train on any railway ramp is defined as 800m ".In other words, want to improve train speed, must adopt more advanced brake equipment.

The braking automobile mode is by brake pedal control brake system wheel (hub) to be produced friction force to brake at present.Existing this brake modes is not ideal enough, and especially automobile is under situation such as the speed of a motor vehicle on rainwater road surface, ice and snow road and the expressway is very fast, and braking distance is often long, as easy as rolling off a log phenomenon such as whipping occurs, break away and roll.On the rainwater road surface, can form moisture film, tire and ground-surface friction force are weakened, make the tire earth-grasping force reduce, unfavorable to automobile brake; Snow back ground-surface accumulated snow can not in time be removed, because constantly rolling of vehicular traffic causes icy on roadly, this moment, the road surface was very smooth, made that the tire earth-grasping force is almost nil; Vehicle is all run at high speed on the expressway, and the speed of self-propelled vehicle is fast more, and its stopping distance is long more, and square being directly proportional of the car brakeing distance that adopts traditional brake modes and the speed of a motor vehicle.

In sum, existing brake modes can not be avoided the derail off-line effectively, automobile whipping, sideslip, bumps against and major traffic accidents such as roll take place.

Summary of the invention

Can prevent when the purpose of this utility model provides a kind of the brake whipping, sideslip, good braking effect based on aerodynamic vehicle brake device, match with former brake system, improve the safety of vehicle ', overcome the deficiencies in the prior art.

Technical solution of the present utility model is: the upper shaft at car body is connected with the air flap, be provided with the support cylinder that joins with pneumatics between air flap and the car body, between pneumatics and support cylinder, be connected to the electromagnetic valve that joins with vehicle power and master cock.

Described pneumatics is air receiver that joins with electromagnetic valve and the air pump that joins with air receiver.

Described electromagnetic valve is connected in series with fire switch, car speed control table and brake system switch, and described fire switch is installed on the car body and is positioned at the below of the brake pedal on the car body.

Be connected to exhaust solenoid valve between described electromagnetic valve and the support cylinder, exhaust solenoid valve is connected in series with air airbrake in switch and vehicle power.

Of the present utility model based on aerodynamic vehicle brake device, because the upper shaft at car body is connected with the air flap, be provided with the support cylinder that joins with pneumatics between air flap and the car body, between pneumatics and support cylinder, be connected to the electromagnetic valve that joins with vehicle power and master cock, when the chance emergency situation needs sudden stop, open electromagnetic valve to supporting cylinder charge by master cock, make the air flap rotation of car body top lift certain angle, the air-air flap produces application force and forms the resistance that vehicle advances, whole locomotive body is braked, make vehicle stable in braking procedure, control the whipping and the sideslip of vehicle, improved the safety performance of vehicle when emergency brake.

Description of drawings

Fig. 1 is the integral structure scheme drawing of the utility model specific embodiment;

Fig. 2 is that vehicle utilizes this device to open the view of air flap 2.

The specific embodiment

With the automobile is example: as shown in the figure: 1 is car body, is connected with air flap 2 with hinge 4 above car body 1, and flap 2 can be rotated with respect to car body 1, and promptly (referring to Fig. 2) can be upwards lifted at the rear portion of flap 2.

Two cylinders 3 are equipped with in both sides between air flap 2 and car body 1, and hinge is connected between the bottom head of cylinder 3 and the car body 1, and hinge is connected between the external end head of the piston rod that matches with cylinder and the air flap 2.Cylinder 3 joins by tracheae and electromagnetic valve 15, and electromagnetic valve 15 connects air receiver 14, and air receiver 14 joins with air pump 12.The motor that drives air pump 12 work joins by brake system switch 7 and vehicle power 6.

Electromagnetic valve 15 is connected in series with fire switch 10, car speed control table 8 and brake system switch 7 and vehicle power 6.Electromagnetic valve 15 joins with exhaust solenoid valve 16, and exhaust solenoid valve 16 joins by air airbrake in switch 5 and vehicle power 6.

Electromagnetic valve 15, exhaust solenoid valve 16, air receiver 14, air pump 12, fire switch 10, car speed control table 8, brake system switch 7, air airbrake in switch 5 are installed in the relevant position of being convenient to operate on the car body 1, fire switch 10 is positioned at the below of brake pedal 11, fire switch 10 actions when depressing brake pedal 11.Interconnect with tracheae 13 between air pump 12, air receiver 14, electromagnetic valve 15, exhaust solenoid valve 16, the cylinder 3, the drive motor of electromagnetic valve 15, exhaust solenoid valve 16, airbrake in switch 5, vehicle power 6, brake system switch 7, car speed control table 8, fire switch 10, air pump 12 is lead and connects.

Air flap 2 closures are attached to above the car body 1 when normal vehicle operation, and exterior contour and car body 1 merge, the negative effect that aerodynamic force produces during with the minimizing normal vehicle operation.

Vehicle uses when high-speed straight-line travels, and particularly high speed train enters the station and automobile travels prominently when meeting emergency situation on rainwater road surface, ice and snow road and express highway with fast speeds, is badly in need of drag and can enables this brake gear.By lifting air flap 2, make air produce resistance vehicle is braked its effect, cooperate with original brake system, make the steady safety arrestment of vehicle.

Use the step of this brake gear as follows: open brake system switch 7, air pump 12 will be inflated to air receiver according to air receiver internal pressure size this moment, and total system is in the preliminary start state simultaneously; In order to adapt to the characteristics that this brake system is used under high-speed case, by adjusting car speed control table 8, make its two terminals under the speed of setting up be in conducting dress attitude, system will start fully after the conducting, and this moment, system was in the state of standing ready; When running into the emergency situation and the speed of a motor vehicle and more than setting speed, need brake, the driver steps on brake pedal 11 brakes, simultaneously fire switch 10 is connected, the loop conducting that be made up of vehicle power 6, brake system switch 7, car speed control table 8, fire switch 10, electromagnetic valve 15 this moment, electromagnetic valve 15 actions are opened, in cylinder 3, charge into gas, piston rod stretches out, air flap 2 is lifted, form 30-90 degree angle with the car body upper surface, air-air flap 2 produces resistance, reaches the purpose of drag; In this process, air airbrake in switch 5 is in off-state, and exhaust solenoid valve 16 is closed; After brake process finished, the driver pressed air airbrake in switch 5, made exhaust solenoid valve 16 actions open exhaust, and cylinder 3 drives air flap 2 returns.

Claims

1, a kind of based on aerodynamic vehicle brake device, it is characterized in that: the upper shaft at car body (1) is connected with air flap (2), be provided with the support cylinder (3) that joins with pneumatics between air flap (2) and the car body (1), between pneumatics and support cylinder (3), be connected to the electromagnetic valve (15) that joins with vehicle power (6) and master cock.

2, according to claim 1 based on aerodynamic vehicle brake device, it is characterized in that: described pneumatics is air receiver (14) that joins with electromagnetic valve (15) and the air pump (12) that joins with air receiver (14).

3, according to claim 2 based on aerodynamic vehicle brake device, it is characterized in that: described electromagnetic valve (15) is connected in series with fire switch (10), car speed control table (8) and brake system switch (7), and described fire switch (10) is installed in the below that the brake pedal (11) on the car body (1) was gone up and be positioned to car body (1).

4, according to claim 3 based on aerodynamic vehicle brake device, it is characterized in that: be connected to exhaust solenoid valve (16) between described electromagnetic valve (15) and the support cylinder (3), row's electromagnetic valve (16) is connected in series with air airbrake in switch (5) and vehicle power (6).