CN203358577U - Emergency braking control device of electric drive mining dump truck - Google Patents
Emergency braking control device of electric drive mining dump truck Download PDFInfo
- Publication number
- CN203358577U CN203358577U CN 201320438976 CN201320438976U CN203358577U CN 203358577 U CN203358577 U CN 203358577U CN 201320438976 CN201320438976 CN 201320438976 CN 201320438976 U CN201320438976 U CN 201320438976U CN 203358577 U CN203358577 U CN 203358577U
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- emergency braking
- brake
- emergency
- braking
- control device
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Abstract
The utility model discloses an emergency braking control device of an electric drive mining dump truck. The emergency braking control device comprises a hydraulic pump and a low-braking-pressure switch. An output port of the hydraulic pump is connected with an input port of a braking pedal valve through a one-way valve. A front wheel brake and a back wheel brake are respectively connected with an output port of the braking pedal valve. The emergency braking control device is characterized in that the output port of the hydraulic pump is further connected with an emergency braking pressure switch and an input port of an emergency braking solenoid valve, and an output port of the emergency braking solenoid valve is connected with a control port of the braking pedal valve. The mine truck can automatically brake emergently when the braking pressure is lower than the set value due to the fact that the emergency braking pressure switch and the emergency braking solenoid valve are arranged between the hydraulic pump and the braking pedal valve, and the safety of the mine truck is effectively improved.
Description
Technical field
The utility model belongs to electric transmission quarry tipper field, is specifically related to a kind of electric transmission quarry tipper emergency braking control device.
Background technology
The electric transmission quarry tipper belongs to haul truck, be mainly used in the transportation of large surface mine ore, mineral aggregate, the electric transmission quarry tipper mainly is comprised of vehicle frame, driving engine, electrical generator, wheel motor, operator's compartment assembly, brake equipment etc., wherein brake equipment is the important component part of electric transmission quarry tipper, especially the safety and reliability of dumping car is had to vital impact.
Electric transmission quarry tipper hydraulic braking at present only has service brake, parking brake function, brake system arranges a braking low pressure switch simultaneously, when brake system pressure during lower than braking low pressure switch setting value, pressure switch is only sent an alerting signal to chaufeur, if chaufeur is not noticed this signal, consequence is very dangerous so, if self-dumping truck braking system has had automatic enforcement emergency braking function, even so when chaufeur is not noticed alerting signal, and when brake system pressure continues to reduce, vehicle will be implemented emergency braking automatically, effectively improved the safety of driving.
Summary of the invention
The purpose of this utility model is to provide a kind of actv. electric transmission quarry tipper emergency braking control device.
Technical scheme
For achieving the above object, the technical solution adopted in the utility model is: a kind of electric transmission quarry tipper emergency braking control device, comprise Hydraulic Pump and braking low pressure switch, the delivery port of described Hydraulic Pump is connected with the input port of emergency braking electromagnetic valve, and the delivery port of described emergency braking electromagnetic valve is connected with the control mouth of described brake pedal valve.
In technique scheme, described Hydraulic Pump is constant pressure variable displacement pump, is arranged on the power delivery port of driving engine, the mechanical energy of driving engine is converted to the pressure energy of liquid, the core apparatus of this emergency braking control device, for whole brake system provides the propulsion source of steady pressure.Fuel tank is the device of storage hydraulic oil, plays the effect into whole hydraulic efficiency pressure system heat radiation simultaneously; The fluid that can prevent the Hydraulic Pump outlet that arranges of check valve flows backwards; The brake pedal valve is the executive component of dumping car brake equipment, two separate guide's reducing valves, consists of, can also can be by the pilot control opening operation of exerting pressure by pedal operation, and the size of its delivery pressure is relevant with the angle of pedal; Front-wheel brake and rear wheel brake piston when obtaining pressure oil stretches out and makes wheel braking, and without pressure oil the time, brake plunger is retracted.
The further technical scheme of the utility model, described emergency braking electromagnetic valve is connected with the emergency stop button in operator's compartment, when chaufeur meets emergency situation, can make vehicle implement emergency braking by the operation emergency stop button.
The further technical scheme of the utility model, the delivery port of described Hydraulic Pump also is provided with the emergency brake pressure switch, when the oil liquid pressure of Hydraulic Pump outlet during lower than emergency brake pressure switch setting value, the emergency braking electromagnetic valve will be automatic the electric vehicle that make is implemented emergency braking.
The further technical scheme of the utility model, described brake pedal valve is connected with energy storage, and energy storage, as the back-up power source of dumping car brake equipment, worked when Hydraulic Pump loses efficacy.
The utility model principle of work: when the brake system et out of order, pressure is during lower than emergency brake pressure switch setting value, pressure switch is sent an electric signal, and that the emergency braking electromagnetic valve is obtained is electric, control mouth PX1, PX2 that hydraulic oil enters into the brake pedal valve through the emergency braking electromagnetic valve trigger brake pedal valve pressure oil output to front brake and rear wheel brake, make vehicle automatically implement emergency braking under the emergency state, effectively improved the safety of driving.
The utility model compared with prior art has following advantages:
1, the utility model is by arranging emergency brake pressure switch and emergency braking electromagnetic valve between the control mouth at Hydraulic Pump outlet and brake pedal valve, while making brake system pressure lower than emergency brake pressure switch setting value, the emergency braking electromagnetic valve obtains electricly, makes vehicle implement emergency braking.
2, the utility model only need be set up emergency brake pressure switch and emergency braking electromagnetic valve, and without existing brake equipment is done to large improvement, method is simple, easily realization.
The accompanying drawing explanation
Fig. 1 is hydraulic brake system control principle drawing in prior art.
Fig. 2 is the utility model quarry tipper emergency braking control device schematic diagram.
Wherein: 1, fuel tank; 2, Hydraulic Pump; 3, check valve; 4, braking low pressure switch; 5, energy storage; 6, brake pedal valve; 7, front-wheel brake; 8, rear wheel brake; 9, emergency braking electromagnetic valve; 10, emergency brake pressure switch.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Shown in Figure 2, the utility model comprises fuel tank 1, Hydraulic Pump 2, check valve 3, braking low pressure switch 4, energy storage 5, brake pedal valve 6, front-wheel brake 7, rear wheel brake 8, emergency braking electromagnetic valve 9 and emergency brake pressure switch 10.The input port of described Hydraulic Pump 2 is connected with fuel tank 1, and the delivery port of Hydraulic Pump 2 is connected with input port P1, the P2 of brake pedal valve 6 through check valve 3; Delivery port B1, the B2 of described brake pedal valve 6 is connected with rear brake 8 with front brake 7 respectively.The delivery port of described Hydraulic Pump 2 also is connected with the input port of emergency brake pressure switch 10 and emergency braking electromagnetic valve 9, and the delivery port of described emergency braking electromagnetic valve 9 is connected with control mouth PX1, the PX2 of described brake pedal valve 6; Described emergency braking electromagnetic valve 9 is connected with the emergency stop button in operator's compartment; Described brake pedal valve 6 is connected with energy storage 5, and energy storage 5, as the back-up power source of dumping car brake equipment, worked when Hydraulic Pump 2 loses efficacy.
(1) vehicle is at flameout state, and now driving engine does not turn round, so there is no pressure in hydraulic efficiency pressure system, hydraulic brake system is not worked.
(2) vehicle is in braking mode, engine running now, the pressure oil output of driven by engine Hydraulic Pump running simultaneously, and the lasting setting value that raises and be maintained to Hydraulic Pump of pressure, be approximately 220bar, pressure oil enters energy storage through check valve, also enter into P1 and the P2 mouth of brake pedal valve simultaneously, step on brake pedal valve pressure oil and enter into rear wheel brake and front-wheel brake by brake pedal valve B1 mouth and B2 mouth simultaneously, now vehicle is implemented braking, and the size of braking force is relevant to the pedal stroke of brake pedal valve.
(3) vehicle is in emergency braking condition, engine running now, vehicle is in the process of travelling, if brake system breaks down, the pressure decreased of brake system, when brake system pressure is reduced to braking low pressure switch setting value, being approximately the 180bar electric system can be to produce an alerting signal in operator's compartment to chaufeur, if operator's compartment is not noticed this signal and is moved on, now the pressure of brake system continue to reduce until be approximately 120bar during emergency brake pressure switch setting value, electric system can make the emergency braking electromagnetic valve electricly automatic, pressure oil enters into the pilot control opening PX1 of brake pedal valve by the emergency braking electromagnetic valve, PX2, trigger the B1 of brake pedal valve, B2 mouth pressure oil output enters into rear wheel brake and front-wheel brake, make vehicle implement emergency braking.Vehicle in the process of moving simultaneously, chaufeur in emergency circumstances also can be pressed the emergency stop button that operator's compartment coordinates with the emergency braking electromagnetic valve meeting, the emergency braking electromagnetic valve is obtained electric, equally also play the effect of emergency braking, effectively improved the safety of driving.
(4) vehicle is in brake release state,
The pedal of loosen the brake valve, front-wheel brake and rear wheel brake inner high voltage oil are got back to hydraulic reservoir through the T mouth of brake pedal valve, and the front and back wheel brake-pressure is discharged simultaneously.
Claims (4)
1. an electric transmission quarry tipper emergency braking control device, comprise Hydraulic Pump (2), braking low pressure switch (4), it is characterized in that: the delivery port of described Hydraulic Pump (2) is connected with the input port of emergency braking electromagnetic valve (9), and the delivery port of described emergency braking electromagnetic valve (9) is connected with the control mouth of described brake pedal valve (7).
2. a kind of electric transmission quarry tipper emergency braking control device according to claim 1 is characterized in that: emergency braking electromagnetic valve (9) is connected with the emergency stop button in operator's compartment.
3. a kind of electric transmission quarry tipper emergency braking control device according to claim 1, it is characterized in that: the delivery port of described Hydraulic Pump (2) also is provided with emergency brake pressure switch (10).
4. a kind of electric transmission quarry tipper emergency braking control device according to claim 1, is characterized in that: with brake pedal valve (7) input port, be connected and also be provided with brake accumulator (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438976 CN203358577U (en) | 2013-07-23 | 2013-07-23 | Emergency braking control device of electric drive mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438976 CN203358577U (en) | 2013-07-23 | 2013-07-23 | Emergency braking control device of electric drive mining dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203358577U true CN203358577U (en) | 2013-12-25 |
Family
ID=49806381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320438976 Expired - Lifetime CN203358577U (en) | 2013-07-23 | 2013-07-23 | Emergency braking control device of electric drive mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203358577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407442A (en) * | 2013-07-23 | 2013-11-27 | 内蒙古北方重型汽车股份有限公司 | Emergency brake control device for electric transmission mining dump truck |
| CN112918441A (en) * | 2021-03-19 | 2021-06-08 | 江苏理工学院 | Active adjusting type control mechanism for brake feeling and pedal position of electric automobile |
| CN112918442A (en) * | 2021-03-19 | 2021-06-08 | 江苏理工学院 | Pedal mechanism with active adjustment of brake feeling and pedal position of new energy vehicle |
-
2013
- 2013-07-23 CN CN 201320438976 patent/CN203358577U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407442A (en) * | 2013-07-23 | 2013-11-27 | 内蒙古北方重型汽车股份有限公司 | Emergency brake control device for electric transmission mining dump truck |
| CN112918441A (en) * | 2021-03-19 | 2021-06-08 | 江苏理工学院 | Active adjusting type control mechanism for brake feeling and pedal position of electric automobile |
| CN112918442A (en) * | 2021-03-19 | 2021-06-08 | 江苏理工学院 | Pedal mechanism with active adjustment of brake feeling and pedal position of new energy vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |