CN215097528U - Hydraulic braking system of forklift - Google Patents
Hydraulic braking system of forklift Download PDFInfo
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- CN215097528U CN215097528U CN202120952337.8U CN202120952337U CN215097528U CN 215097528 U CN215097528 U CN 215097528U CN 202120952337 U CN202120952337 U CN 202120952337U CN 215097528 U CN215097528 U CN 215097528U
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Abstract
The utility model provides a forklift hydraulic braking system, which comprises a service braking module, a parking braking module and a pilot valve group, wherein the pilot valve group is used for connecting a forklift hydraulic oil tank, the service braking module and the parking braking module; the parking brake module comprises a parking brake electromagnetic valve and a parking brake which are sequentially connected. The utility model discloses a want control circuit pedal control service brake and parking braking, can also realize remote control pedal realization service brake and parking braking when satisfying driver pedal control, guarantee safe braking operation under abominable road conditions, service brake adopts four-wheel brake simultaneously, and braking effect is showing more.
Description
Technical Field
The utility model relates to a fork truck hydraulic braking technical field, concretely relates to fork truck hydraulic braking system.
Background
The telescopic boom all terrain vehicle is an engineering vehicle which can carry out goods loading, unloading, stacking and carrying operation on a slope and uneven ground safely and highly, and a driver often cannot complete the braking operation of the telescopic boom all terrain vehicle in a cab due to the complex working environment in the face of severe road conditions, so that safe driving is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fork truck hydraulic braking system makes things convenient for the driver to realize fork truck's braking operation in complicated road conditions.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a forklift hydraulic brake system comprising:
the service brake module comprises a remote control type circuit pedal, a service brake electromagnetic valve, a brake cylinder and a service brake which are sequentially connected;
the parking brake module comprises a parking brake electromagnetic valve and a parking brake which are sequentially connected; and
and the pilot valve group is connected with the hydraulic oil tank of the forklift, the service braking module and the parking braking module.
Preferably, the brake cylinder is further connected with a brake oil-supplementing electromagnetic valve and a brake oil-supplementing oil can.
Further, the service brake module comprises four sets of service brakes respectively arranged at each wheel hub.
Further, the parking brake module comprises two groups of parking brakes which are respectively arranged at the hubs of the front wheels or the rear wheels.
Preferably, the parking brake solenoid valve is integrated in the pilot valve group, and is controlled to be on or off by a button installed in the vehicle.
Preferably, a 0.075 accumulator and a 0.5 accumulator are also connected to the pilot valve group, wherein the 0.075 accumulator is arranged between the pilot valve group and the parking brake.
According to the above technical scheme, the utility model discloses a want control circuit pedal control service brake and parking braking, can also realize remote control footboard realization service brake and parking braking when satisfying driver pedal control, guarantee safe braking operation under abominable road conditions, service brake adopts four-wheel brake simultaneously, and braking effect is showing more.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
in the figure: 1. a service brake module; 11. a circuit pedal; 12. a service brake solenoid valve; 13. a brake cylinder; 14. a service brake; 15. braking oil supplement electromagnetic valves; 16. a brake oil supplement oilcan; 2. a parking brake module; 21. a parking brake solenoid valve; 22. a parking brake; 3. a pilot valve group; 31. 0.075 accumulator; 32. 0.5 accumulator.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The hydraulic braking system of the forklift shown in fig. 1 comprises a service braking module 1, a parking braking module 2 and a pilot valve group 3 which is connected with a hydraulic oil tank of the forklift, the service braking module and the parking braking module, wherein the service braking module comprises a remote control type circuit pedal 11, a service braking electromagnetic valve 12, a brake cylinder 13 and a service brake 14 which are sequentially connected; the parking brake module comprises a parking brake electromagnetic valve 21 and a parking brake 22 which are sequentially connected; the service brakes in the preferred embodiment comprise four groups which are respectively arranged at the wheel hubs of each wheel, and the four wheels are braked simultaneously, so that the braking effect can be improved, and the braking distance can be shortened; the parking brake assembly comprises two groups of parking brakes connected with the front wheel or the rear wheel and respectively arranged at the wheel hubs of the front wheel or the rear wheel; service brake and parking brake all are provided with the friction disc, can make friction disc and wheel hub press from both sides tightly under the effect of hydraulic oil, and then realize fork truck's speed reduction, braking.
The speed reduction and braking of the forklift in the driving process of the preferred embodiment are controlled by a driver stepping in a cab or remotely controlling a circuit pedal 11 outside the cab, specifically: in service brake, a circuit pedal is remotely controlled or stepped on to the bottom, a service brake electromagnetic valve 12 is electrified, so that oil enters a brake cylinder 13, the pressure of the oil in a service brake is increased, and a friction plate and a hub of the service brake are pressed to generate a braking action; when the pedal is released, the brake solenoid valve loses power, oil entering the brake cylinder flows back, the pressure in the service brake is reduced, the friction plate is released, and when the pedal is completely released, the service brake function disappears.
The brake cylinder 13 in the preferred embodiment is further connected with a brake oil-supplementing electromagnetic valve 15 and a brake oil-supplementing oil can 16, and the brake oil-supplementing electromagnetic valve is controlled to be disconnected from the brake cylinder to the brake and the atmosphere when the brake is stepped on, so that pressure oil is formed; when internal leakage occurs, oil can be supplemented in time through the oil supplementing pot, and no air exists in an oil way between the brake cylinder and the brake.
The parking brake is that a driver controls the on-off of the parking brake electromagnetic valve 21 through a button, when the parking brake electromagnetic valve is electrified, oil enters the parking brake 22, the friction plate is pushed open by oil pressure, the parking brake is released, when the parking brake electromagnetic valve is not electrified, the oil returns to the oil tank in the parking brake, no pressure oil pushes open the friction plate, the wheel hub is pressed, and the parking brake is started.
The pilot valve group 3 according to the preferred embodiment is further connected with a 0.075 accumulator 31 and a 0.5 accumulator 32, wherein the 0.075 accumulator is disposed between the pilot valve group and the parking brake 22, the accumulator is an energy storage device in a hydraulic pneumatic system, and can convert energy in the system into compression energy or potential energy for storage, and when the system needs, the compression energy or the potential energy is converted into energy such as hydraulic pressure or air pressure for release, and the energy is supplied to the system again; when the system pressure is increased instantaneously, it can absorb the energy of the part to ensure the pressure of the whole system to be stable.
The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (6)
1. A forklift hydraulic brake system, comprising:
the brake system comprises a service brake module (1) and a brake system, wherein the service brake module comprises a remote control type circuit pedal (11), a service brake electromagnetic valve (12), a brake cylinder (13) and a service brake (14) which are sequentially connected;
the parking brake module (2) comprises a parking brake electromagnetic valve (21) and a parking brake (22) which are sequentially connected; and
and a pilot valve group (3) connected with the hydraulic oil tank of the forklift, the service brake module and the parking brake module.
2. A forklift hydraulic brake system according to claim 1, characterized in that a brake fluid replenishing solenoid valve (15) and a brake fluid replenishing oil can (16) are further connected to the brake cylinder (13).
3. Hydraulic forklift braking system according to claim 1, characterized in that the service brake module (2) comprises four sets of service brakes (14) provided at each wheel hub respectively.
4. Hydraulic forklift brake system according to claim 1, characterized in that the parking brake module (2) comprises two sets of parking brakes (22) arranged at the front or rear wheel hubs, respectively.
5. Hydraulic forklift brake system according to claim 1, characterized in that the parking brake solenoid valve (21) is integrated in the pilot valve group (3) and is switched on and off by means of a push button installed in the vehicle.
6. Hydraulic forklift brake system according to claim 1, characterized in that a 0.075 accumulator (31) and a 0.5 accumulator (32) are also connected to the pilot valve pack (3), wherein the 0.075 accumulator is arranged between the pilot valve pack and the parking brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120952337.8U CN215097528U (en) | 2021-04-29 | 2021-04-29 | Hydraulic braking system of forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120952337.8U CN215097528U (en) | 2021-04-29 | 2021-04-29 | Hydraulic braking system of forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215097528U true CN215097528U (en) | 2021-12-10 |
Family
ID=79294317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120952337.8U Active CN215097528U (en) | 2021-04-29 | 2021-04-29 | Hydraulic braking system of forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215097528U (en) |
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2021
- 2021-04-29 CN CN202120952337.8U patent/CN215097528U/en active Active
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