CN104401306A - Mining dump truck hydraulic brake control integrated system with large electric wheel - Google Patents
Mining dump truck hydraulic brake control integrated system with large electric wheel Download PDFInfo
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- CN104401306A CN104401306A CN201410711897.9A CN201410711897A CN104401306A CN 104401306 A CN104401306 A CN 104401306A CN 201410711897 A CN201410711897 A CN 201410711897A CN 104401306 A CN104401306 A CN 104401306A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
- B60T11/105—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices with brake locking after actuation, release of the brake by a different control device, e.g. gear lever
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a mining dump truck hydraulic brake control integrated system with large electric wheel. The mining dump truck hydraulic brake control integrated system with large electric wheel comprises a variable pump, an oil tank, a high-pressure oil filter, a front wheel brake, a rear wheel brake, a parking brake, a brake pedal valve, a front guide control valve, a rear guide control valve, a first energy accumulator, a second energy accumulator, a second shuttle valve, the mining dump truck hydraulic brake control integrated system with large electric wheel further comprises a brake control integrated valve group provided with a plurality of cartridge valves, the variable pump is connected with the brake control integrated valve group via the high-pressure oil filter. The mining dump truck hydraulic brake control integrated system with large electric wheel is high in work reliability, simple in manufacture, low in use cost, the standard general hydraulic components are integrated into the hydraulic brake control system, the elements are concentrated with high integration degree, small space usage, little pipeline and convenient maintenance; the operation is simple, the function is strong, the automation control degree is high, the action interlocking relationship is perfect, the safety performance is high for brake control for large mining dump truck equipment.
Description
Technical field
The present invention relates to a kind of hydraulic braking control integration system, especially relate to a kind of Large Electric wheel quarry tipper hydraulic braking control integration system.
Background technology
Electric drive wheel mine dumping car hydraulic braking control system is one of electric drive wheel transport trolley core technology.The hydraulic braking control system of similar products at home and abroad adopts traditional control system be made up of multiple discrete component mostly, has the defects such as element is many, pipeline is complicated, functional reliability is low, maintenance trouble, manufacturing cost are high; And due to by the restriction of bulk, the function ratio of control comparatively between single, such as, the hydraulic braking control system of the dumping car that little Song Dierser company, company of Byelorussia etc. produce in early days is like this.
For meeting the needs of domestic large-tonnage electric drive wheel Mine haul car, the hydraulic braking control system with integrating control feature developing new advanced person has become urgent gesture.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the above-mentioned difference that prior art exists, provides a kind of functional reliability high, easy to maintenance, the Large Electric wheel quarry tipper hydraulic braking control integration system of low cost of manufacture.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Large Electric wheel quarry tipper hydraulic braking control integration system, comprise controllable capacity pump, fuel tank, high-pressure filter, front-wheel brake, rear wheel brake, parking brake, brake pedal valve, front pilot-actuated valve, rear pilot-actuated valve, the first energy storage, the second energy storage, the second shuttle valve, also comprise the control for brake pile-up valve group being provided with multiple inserted valve, controllable capacity pump is connected with control for brake pile-up valve group through high-pressure filter.
Further, described control for brake pile-up valve group comprises the first check valve, the second check valve, the 3rd check valve, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, first throttle shutoff valve, second section flow shutoff valve, reducing valve, sequence valve, the first shuttle valve and deep fat shuttle valve; First check valve, the second check valve, the 3rd check valve, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, first throttle shutoff valve, second section flow shutoff valve, reducing valve, sequence valve, the first shuttle valve and deep fat shuttle valve are all plugged on oil path block.
Further, controllable capacity pump connects the oil inlet of oil path block by high-pressure filter, the oil recirculating port connecting tank of oil path block, the return opening of brake pedal valve and the return opening of front pilot-actuated valve, oil path block is provided with five pressure oil delivery ports: braking and locking pilot pressure oil outlet, emergency braking pilot pressure oil outlet, first brake-pressure oil outlet, second brake-pressure oil outlet and stopping brake pressure oil delivery port, wherein, first brake-pressure oil outlet of oil path block is connected to the pressure oil input port of brake pedal valve and the pressure oil input port of rear pilot-actuated valve by the first energy storage, second brake-pressure oil outlet of oil path block is connected to the pressure oil input port of front pilot-actuated valve and another pressure oil input port of brake pedal valve by the second energy storage, the pilot control opening of control cock is led after the braking and locking pilot pressure oil outlet of oil path block is accessed together with the pressure oil delivery port of brake pedal valve by the second shuttle valve, the stopping brake pressure oil delivery port of oil path block directly accesses the pressure oil input port of parking brake, the emergency braking pilot pressure oil outlet of oil path block directly accesses the pilot control opening of brake pedal valve.
Further, the oil inlet of oil path block is connected to first brake-pressure oil outlet of oil path block through the first check valve, the oil inlet of oil path block is connected to second brake-pressure oil outlet of oil path block through the second check valve, the oil inlet of oil path block is through the 3rd check valve, 3rd electromagnetic valve is connected to the stopping brake pressure oil delivery port of oil path block, the oil inlet of oil path block is through reducing valve, second electromagnetic valve is connected to the braking and locking pilot pressure oil outlet of oil path block, the oil inlet of oil path block is through the second check valve, first shuttle valve, sequence valve is connected to the emergency braking pilot pressure oil outlet of oil path block, first check valve, second check valve is all through deep fat shuttle valve, first electromagnetic valve is connected to the control end of sequence valve, the oil inlet of oil path block is through the first check valve, first throttle shutoff valve is connected to the return opening of oil path block, second section flow shutoff valve is connected between the return opening of oil path block and second of oil path block brake-pressure oil outlet, first shuttle valve two ends are connected to first brake-pressure oil outlet and second brake-pressure oil outlet of oil path block respectively.
Further, another pressure oil delivery port of described brake pedal valve is connected to the pilot control opening of front pilot-actuated valve, after lead control cock pressure oil delivery port be connected to the left rear wheel drg of rear wheel brake, after lead control cock another pressure oil delivery port be connected to the off hind wheel drg of rear wheel brake, the pressure oil delivery port of front pilot-actuated valve is connected to the near front wheel drg of front-wheel brake, and another pressure oil delivery port of front pilot-actuated valve is connected to the off front wheel drg of front-wheel brake.
Further, described controllable capacity pump is connected with fuel tank by oil absorption filter.
Functional reliability of the present invention is high, and manufacture simple, use cost is low, the integrated special hydraulic braking control system of Hydraulic Elements that selection standard is general, element centralized arrangement, and degree of integration is high, and take up room little, pipeline is few, is convenient to maintenance; Simple to operate, powerful, automatic controlling level is high, and action interlock connection is perfect, and safety performance is high, is suitable for the control for brake of large-scale mine dumping car equipment.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of control for brake pile-up valve group of the present invention;
Fig. 2 is the schematic diagram of Large Electric of the present invention wheel quarry tipper hydraulic braking control integration system;
Fig. 3 (a) is the front view of the pile-up valve of control for brake shown in Fig. 1 group;
Fig. 3 (b) is the birds-eye view of the pile-up valve of control for brake shown in Fig. 1 group;
Fig. 3 (c) is the right elevation of the pile-up valve of control for brake shown in Fig. 1 group;
Fig. 3 (d) is the upward view of the pile-up valve of control for brake shown in Fig. 1 group;
In figure: 1.1, first throttle shutoff valve; 1.2, second section flow shutoff valve; 2.1, the first check valve; 2.2, the second check valve; 2.3 the 3rd check valves; 3, the first electromagnetic valve; 4, sequence valve; 5.1, the second electromagnetic valve; 5.2, the 3rd electromagnetic valve; 6, reducing valve; 7, oil path block; 8, the first shuttle valve; 9, deep fat shuttle valve; 10, controllable capacity pump; 11, oil absorption filter; 12, high-pressure filter; 13.1, the first energy storage; 13.2, the second energy storage; 14, brake pedal valve; 15.1, rear pilot-actuated valve; 15.2, front pilot-actuated valve; 16, parking brake; 17, rear wheel brake; 18, front-wheel brake; 19, the second shuttle valve; 20, fuel tank; The oil inlet of P, oil path block; The pressure oil input port of P1, brake pedal valve; Another pressure oil input port of P2, brake pedal valve; The pressure oil input port of P3, front pilot-actuated valve; The pressure oil input port of P4, rear pilot-actuated valve; The return opening of T, oil path block; The return opening of T1, brake pedal valve; The return opening of T2, front pilot-actuated valve; The return opening of T3, rear pilot-actuated valve; The braking and locking pilot pressure oil outlet of PX1, oil path block; The emergency braking pilot pressure oil outlet of PX2, oil path block; A, first brake-pressure oil outlet; B, second brake-pressure oil outlet; The stopping brake pressure oil delivery port of K, oil path block; The pressure oil delivery port of A1, brake pedal valve; Another pressure oil delivery port of B1, brake pedal valve; The pressure oil delivery port of A2, front pilot-actuated valve; Another pressure oil delivery port of B2, front pilot-actuated valve; The pressure oil delivery port of A3, rear pilot-actuated valve; Another pressure oil delivery port of B3, rear pilot-actuated valve; The pilot control opening of X1, brake pedal valve; The pilot control opening of X2, front pilot-actuated valve; X3, rear pilot-actuated valve pilot control opening.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
A kind of Large Electric wheel quarry tipper hydraulic braking control integration system, comprise controllable capacity pump 10, fuel tank 20, high-pressure filter 12, front-wheel brake 18, rear wheel brake 17, parking brake 16, brake pedal valve 14, front pilot-actuated valve 15.2, rear pilot-actuated valve 15.1, first energy storage 13.1, second energy storage 13.2, second shuttle valve 19, also comprise the control for brake pile-up valve group being provided with multiple inserted valve, controllable capacity pump 10 is connected with control for brake pile-up valve group through high-pressure filter 12.
Described control for brake pile-up valve group comprises the first check valve 2.1, second check valve 2.2, the 3rd check valve 2.3, first electromagnetic valve 3, second electromagnetic valve 5.1, the 3rd electromagnetic valve 5.2, first throttle shutoff valve 1.1, second section flow shutoff valve 1.2, reducing valve 6, sequence valve 4, first shuttle valve 8 and deep fat shuttle valve 9; First check valve 2.1, second check valve 2.2, the 3rd check valve 2.3, first electromagnetic valve 3, second electromagnetic valve 5.1, the 3rd electromagnetic valve 5.2, first throttle shutoff valve 1.1, second section flow shutoff valve 1.2, reducing valve 6, sequence valve 4, first shuttle valve 8 and deep fat shuttle valve 9 are all plugged on oil path block 7.
Controllable capacity pump 10 connects the oil inlet P of oil path block 7 by high-pressure filter 12, the oil return inlet T connected tank 20 of oil path block 7, the oil return inlet T 1 of brake pedal valve 14 and the oil return inlet T 2 of front pilot-actuated valve 15.2, oil path block 7 is provided with five pressure oil delivery ports: braking and locking pilot pressure oil outlet PX1, emergency braking pilot pressure oil outlet PX2, first brake-pressure oil outlet A, second brake-pressure oil outlet B and stopping brake pressure oil delivery port K, wherein, first brake-pressure oil outlet A of oil path block 7 is connected to the pressure oil input port P1 of brake pedal the valve 14 and pressure oil input port P4 of rear pilot-actuated valve 15.1 by the first energy storage 13.1, second brake-pressure oil outlet B of oil path block 7 is connected to the pressure oil input port P3 of front pilot-actuated valve 15.2 and another pressure oil input port P2 of brake pedal valve 14 by the second energy storage 13.2, the pilot control opening X3 of control cock 15.1 is led after the braking and locking pilot pressure oil outlet PX1 of oil path block 7 is accessed together with the pressure oil delivery port A1 of brake pedal valve 14 by the second shuttle valve 19, the stopping brake pressure oil delivery port K of oil path block 7 directly accesses the pressure oil input port of parking brake 16, the emergency braking pilot pressure oil outlet PX2 of oil path block 7 directly accesses the pilot control opening X1 of brake pedal valve 14.
The oil inlet P of oil path block 7 is connected to first brake-pressure oil outlet A of oil path block 7 through the first check valve 2.1, the oil inlet P of oil path block 7 is connected to second brake-pressure oil outlet B of oil path block 7 through the second check valve 2.2, the oil inlet P of oil path block 7 is through the 3rd check valve 2.3, 3rd electromagnetic valve 5.2 is connected to the stopping brake pressure oil delivery port K of oil path block 7, the oil inlet P of oil path block 7 is through reducing valve 6, second electromagnetic valve 5.1 is connected to the braking and locking pilot pressure oil outlet PX1 of oil path block 7, the oil inlet P of oil path block 7 is through the second check valve 2.2, first shuttle valve 8, sequence valve 4 is connected to the emergency braking pilot pressure oil outlet PX2 of oil path block 7, first check valve 2.1, second check valve 2.2 is all through deep fat shuttle valve 9, first electromagnetic valve 3 is connected to the control end of sequence valve 4, the oil inlet P of oil path block 7 is through the first check valve 2.1, first throttle shutoff valve 1.1 is connected to the oil return inlet T of oil path block 7, second section flow shutoff valve 1.2 is connected between the oil return inlet T of oil path block 7 and second brake-pressure oil outlet B of oil path block 7, first shuttle valve 8 two ends are connected to first brake-pressure oil outlet A and second brake-pressure oil outlet B of oil path block 7 respectively.
Another pressure oil delivery port B1 of described brake pedal valve 14 is connected to the pilot control opening X2 of front pilot-actuated valve 15.2, after lead control cock 15.1 pressure oil delivery port A3 be connected to the left rear wheel drg of rear wheel brake 17, after lead control cock 15.1 another pressure oil delivery port B3 be connected to the off hind wheel drg of rear wheel brake 17, the pressure oil delivery port A2 of front pilot-actuated valve 15.2 is connected to the near front wheel drg of front-wheel brake 18, and another pressure oil delivery port B2 of front pilot-actuated valve 15.2 is connected to the off front wheel drg of front-wheel brake 18.
Described controllable capacity pump 10 is connected with fuel tank 20 by oil absorption filter 11.
Principle of work: the large-scale mining dump truck with electric wheels hydraulic braking control integration system of the present invention; its brake control process comprises 3 brake riggings functions: service braking, braking and locking, stopping brake, 2 brake safe defencive functions: automatic emergency brake protection, manual emergency braking protection.
Service braking: step on brake pedal valve 14, from controllable capacity pump 10 pressure oil out through the first check valve 2.1, first brake-pressure oil outlet A of oil path block 7 gives the first energy storage 13.1 pressurising, pressure oil after the first energy storage 13.1 pressurising is through the pressure oil input port P1 of brake pedal valve 14 and pressure oil delivery port A1, the pilot control opening X3 of pilot-actuated valve 15.1 after the second shuttle valve 19 arrives again, simultaneously, the pressure oil input port P4 of pilot-actuated valve 15.1 after pressure oil after the first energy storage 13.1 pressurising also flow to, after lead pilot-actuated valve 15.1 after under the effect of the pilot control opening X3 pressure oil of control cock 15.1 and start action, after lead the pressure oil input port P4 of control cock 15.1 pressure oil enter after lead pressure oil delivery port A3 and another pressure oil delivery port B3 of control cock 15.1, thus arrive left rear wheel drg and the off hind wheel drg of rear wheel brake 17, realize the braking to trailing wheel.Meanwhile, also the second energy storage 13.2 pressurising is given through second brake-pressure oil outlet B of the second check valve 2.2, oil path block 7 from controllable capacity pump 10 pressure oil out, pressure oil after the second energy storage 13.2 pressurising, through another pressure oil input port P2, another pressure oil delivery port B1 of brake pedal valve 14, the pilot control opening X2 of pilot-actuated valve 15.2 before arriving; Simultaneously, pressure oil after the second energy storage 13.2 pressurising enters the pressure oil input port P3 of front pilot-actuated valve 15.2, before under the effect of pilot control opening X2 pressure oil, pilot-actuated valve 15.2 starts action, the pressure oil of the pressure oil input port P3 of front pilot-actuated valve 15.2 enters pressure oil delivery port A2 and another pressure oil delivery port B2 of front pilot-actuated valve 15.2, thus arrive the near front wheel drg and the off front wheel drg of front-wheel brake 18, realize the braking to front-wheel.
Braking and locking: braking and locking function mainly vehicle compression and decompression time use, be a kind of brake mode of electronic enforcement, only act on trailing wheel.When the second electromagnetic valve 5.1 obtains electric, from the pressure oil of controllable capacity pump 10 through reducing valve 6, second electromagnetic valve 5.1, the braking and locking pilot pressure oil outlet PX1 of oil path block 7, second shuttle valve 19 arrives the pilot control opening X3 of rear pilot-actuated valve 15.1, under the effect of pilot control opening X3 pressure oil, rear pilot-actuated valve 15.1 starts action, after lead the pressure oil input port P4 of control cock 15.1 pressure oil enter after lead pressure oil delivery port A3 and another pressure oil delivery port B3 of control cock 15.1, thus arrive left rear wheel drg and the off hind wheel drg of rear wheel brake 17, realize the braking and locking to trailing wheel.
Stopping brake: be mainly used in stopping for a long time use.When the 3rd electromagnetic valve 5.2 dead electricity, the oil pressure entering parking brake 16 flows into fuel tank 20 by the 3rd electromagnetic valve 5.2, realizes stopping brake; When the 3rd electromagnetic valve 5.2 obtains electric, the pressure oil from controllable capacity pump 10 enters parking brake through the stopping brake pressure oil delivery port K of the 3rd electromagnetic valve 5.2, oil path block 7, and alleviated by stopping brake, vehicle just can bring into operation.
Automatic emergency brake is protected: due to the damage of pump or other unforeseen circumstances cause system pressure to reduce time, the control presssure that output one reduces by deep fat shuttle valve 9 is by the control mouth of the first electromagnetic valve 3 order of arrival valve 4, the spool of sequence valve 4 starts action, the pressure oil release that first energy storage 13.1 and the second energy storage 13.2 store, pressure oil is through the first shuttle valve 8, sequence valve 4, the emergency braking pilot pressure oil outlet PX2 of oil path block 7 enters the pilot control opening X1 of brake pedal valve 14, under the effect of pilot control opening X1 pressure oil, brake pedal valve 14 starts action, namely the action of push down on the pedal is equivalent to, the pressure oil that first energy storage 13.1 discharges, again through pressure oil input port P1 and the pressure oil delivery port A1 of brake pedal valve 14, the pilot control opening X3 of pilot-actuated valve 15.1 after the second shuttle valve 19 arrives again, the pressure oil that first energy storage 13.1 stores release also flow to the pressure oil input port P4 of rear pilot-actuated valve 15.1, under the effect of pilot control opening X3 pressure oil, rear pilot-actuated valve 15.1 starts action, pressure oil delivery port A3 and another pressure oil delivery port B3 of control cock 15.1 is led after the pressure oil of the pressure oil input port P4 of rear pilot-actuated valve 15.1 enters, thus arrive left rear wheel drg and the off hind wheel drg of rear wheel brake 17, realize the braking to trailing wheel.Meanwhile, the pressure oil release that second energy storage 13.2 stores, pressure oil is out through another pressure oil input port P2 of brake pedal valve 14, another pressure oil delivery port B1, the pilot control opening X2 of pilot-actuated valve 15.2 before arriving, the pressure oil that second energy storage 13.2 discharges also enters the pressure oil input port P3 of front pilot-actuated valve 15.2, under the effect of pilot control opening X2 pressure oil, front pilot-actuated valve 15.2 starts action, the pressure oil of the pressure oil input port P3 of front pilot-actuated valve 15.2 enters pressure oil delivery port A2 and another pressure oil delivery port B2 of front pilot-actuated valve 15.2, thus arrive the near front wheel drg and the off front wheel drg of front-wheel brake 18, realize the braking to front-wheel.By above step, complete automatic emergency brake protection.
Manual emergency braking protection: this function is in emergency circumstances, as situations such as brake pedal inefficacies, the braking implemented by hand switch.When opening the manual emergency brake switch in operator's compartment, first electromagnetic valve 3 is energized, first electromagnetic valve 3 action, thus the spool action of control sequence valve 4, the pressure oil of the first energy storage 13.1 and the release of the second energy storage 13.2 is through the first shuttle valve 8, sequence valve 4, the emergency braking pilot pressure oil outlet PX2 of oil path block 7 enters the pilot control opening X1 of brake pedal valve 14, under the effect of pilot control opening X1 pressure oil, brake pedal spool 14 starts action, the pressure oil release that first energy storage 13.1 stores, the pressure oil of release is through the pressure oil input port P1 through brake pedal valve 14, pressure oil delivery port A1, second shuttle valve 19 arrives the pilot control opening X3 of rear pilot-actuated valve 15.1, the pressure oil that first energy storage 13.1 discharges also flow to the pressure oil input port P4 of rear pilot-actuated valve 15.1, under the effect of pilot control opening X3 pressure oil, the action of rear pilot-actuated valve 15.1, pressure oil delivery port A3 and another pressure oil delivery port B3 of control cock 15.1 is led after the pressure oil of the pressure oil input port P4 of rear pilot-actuated valve 15.1 enters, thus arrive left rear wheel drg and the off hind wheel drg of rear wheel brake 17, realize the braking to trailing wheel.Meanwhile, the pressure oil release that second energy storage 13.2 stores, the pressure oil discharged is through another pressure oil input port P2 of brake pedal valve 14, another pressure oil delivery port B1, the pilot control opening X2 of pilot-actuated valve 15.2 before arriving, the pressure oil that second energy storage 13.2 discharges also enters the pressure oil input port P3 of front pilot-actuated valve 15.2, under the effect of pilot control opening X2 pressure oil, front pilot-actuated valve 15.2 starts action, the pressure oil of the pressure oil input port P3 of front pilot-actuated valve 15.2 enters pressure oil delivery port A2 and another pressure oil delivery port B2 of front pilot-actuated valve 15.2, thus arrive the near front wheel drg and the off front wheel drg of front-wheel brake 18, realize the braking to front-wheel.By above step, complete manual emergency braking protection.
Claims (6)
1. a Large Electric wheel quarry tipper hydraulic braking control integration system, comprise controllable capacity pump (10), fuel tank (20), high-pressure filter (12), front-wheel brake (18), rear wheel brake (17), parking brake (16), brake pedal valve (14), front pilot-actuated valve (15.2), rear pilot-actuated valve (15.1), first energy storage (13.1), second energy storage (13.2), second shuttle valve (19), it is characterized in that, also comprise the control for brake pile-up valve group being provided with multiple inserted valve, controllable capacity pump (10) is connected with control for brake pile-up valve group through high-pressure filter (12).
2. Large Electric wheel quarry tipper hydraulic braking control integration system according to claim 1, it is characterized in that, described control for brake pile-up valve group comprises the first check valve (2.1), the second check valve (2.2), the 3rd check valve (2.3), the first electromagnetic valve (3), the second electromagnetic valve (5.1), the 3rd electromagnetic valve (5.2), first throttle shutoff valve (1.1), second section flow shutoff valve (1.2), reducing valve (6), sequence valve (4), the first shuttle valve (8) and deep fat shuttle valve (9); First check valve (2.1), the second check valve (2.2), the 3rd check valve (2.3), the first electromagnetic valve (3), the second electromagnetic valve (5.1), the 3rd electromagnetic valve (5.2), first throttle shutoff valve (1.1), second section flow shutoff valve (1.2), reducing valve (6), sequence valve (4), the first shuttle valve (8) and deep fat shuttle valve (9) are all plugged on oil path block (7).
3. Large Electric wheel quarry tipper hydraulic braking control integration system according to claim 2, it is characterized in that, controllable capacity pump (10) connects the oil inlet P of oil path block (7) by high-pressure filter (12), return opening (T) connected tank (20) of oil path block (7), the return opening (T1) of brake pedal valve (14) and the return opening (T2) of front pilot-actuated valve 15.2, oil path block (7) is provided with five pressure oil delivery ports: braking and locking pilot pressure oil outlet (PX1), emergency braking pilot pressure oil outlet (PX2), first brake-pressure oil outlet (A), second brake-pressure oil outlet (B) and stopping brake pressure oil delivery port (K), wherein, first brake-pressure oil outlet (A) of oil path block (7) is connected to the pressure oil input port (P1) of brake pedal valve (14) and the pressure oil input port (P4) of rear pilot-actuated valve (15.1) by the first energy storage (13.1), second brake-pressure oil outlet (B) of oil path block (7) is connected to the pressure oil input port (P3) of front pilot-actuated valve (15.2) and another pressure oil input port (P2) of brake pedal valve (14) by the second energy storage (13.2), the pilot control opening (X3) of control cock (15.1) is led after the braking and locking pilot pressure oil outlet (PX1) of oil path block (7) is accessed together with the pressure oil delivery port (A1) of brake pedal valve (14) by the second shuttle valve (19), the stopping brake pressure oil delivery port (K) of oil path block (7) directly accesses the pressure oil input port of parking brake (16), the emergency braking pilot pressure oil outlet (PX2) of oil path block (7) directly accesses the pilot control opening (X1) of brake pedal valve (14).
4. Large Electric wheel quarry tipper hydraulic braking control integration system according to claim 3, it is characterized in that, the oil inlet P of oil path block (7) is connected to first brake-pressure oil outlet (A) of oil path block (7) through the first check valve (2.1), the oil inlet (P) of oil path block (7) is connected to second brake-pressure oil outlet B of oil path block (7) through the second check valve (2.2), the oil inlet (P) of oil path block (7) is through the 3rd check valve (2.3), 3rd electromagnetic valve (5.2) is connected to the stopping brake pressure oil delivery port (K) of oil path block (7), the oil inlet P of oil path block (7) is through reducing valve (6), second electromagnetic valve (5.1) is connected to the braking and locking pilot pressure oil outlet (PX1) of oil path block (7), the oil inlet P of oil path block (7) is through the second check valve (2.2), first shuttle valve (8), sequence valve (4) is connected to the emergency braking pilot pressure oil outlet (PX2) of oil path block (7), first check valve (2.1), second check valve (2.2) is all through deep fat shuttle valve (9), first electromagnetic valve (3) is connected to the control end of sequence valve (4), the oil inlet (P) of oil path block (7) is through the first check valve (2.1), first throttle shutoff valve (1.1) is connected to the return opening (T) of oil path block (7), second section flow shutoff valve (1.2) is connected between the return opening (T) of oil path block (7) and second brake-pressure oil outlet (B) of oil path block (7).
5. Large Electric wheel quarry tipper hydraulic braking control integration system according to claim 3, it is characterized in that, another pressure oil delivery port (B1) of described brake pedal valve (14) is connected to the pilot control opening (X2) of front pilot-actuated valve (15.2), after lead control cock (15.1) pressure oil delivery port (A3) be connected to the left rear wheel drg of rear wheel brake (17), after lead control cock (15.1) another pressure oil delivery port (B3) be connected to the off hind wheel drg of rear wheel brake (17), the pressure oil delivery port (A2) of front pilot-actuated valve (15.2) is connected to the near front wheel drg of front-wheel brake (18), another pressure oil delivery port (B2) of front pilot-actuated valve (15.2) is connected to the off front wheel drg of front-wheel brake (18).
6. Large Electric wheel quarry tipper hydraulic braking control integration system according to claim 1, it is characterized in that, described controllable capacity pump (10) is connected with fuel tank (20) by oil absorption filter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711897.9A CN104401306B (en) | 2014-12-02 | 2014-12-02 | A kind of Large Electric wheel quarry tipper hydraulic braking controls integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711897.9A CN104401306B (en) | 2014-12-02 | 2014-12-02 | A kind of Large Electric wheel quarry tipper hydraulic braking controls integrated system |
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| Publication Number | Publication Date |
|---|---|
| CN104401306A true CN104401306A (en) | 2015-03-11 |
| CN104401306B CN104401306B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711897.9A Active CN104401306B (en) | 2014-12-02 | 2014-12-02 | A kind of Large Electric wheel quarry tipper hydraulic braking controls integrated system |
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| CN (1) | CN104401306B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109263622A (en) * | 2018-09-30 | 2019-01-25 | 广西柳工机械股份有限公司 | The full power hydraulic brake system and engineering machinery of combination valve and more braking approach |
| CN110001608A (en) * | 2019-03-06 | 2019-07-12 | 江苏大学 | A kind of automobile smart brake system and its control method based on road surface vision-based detection |
| CN110843904A (en) * | 2019-11-14 | 2020-02-28 | 湘电重型装备有限公司 | Integrated steering and braking control system of large electric wheel dumper |
| CN113291270A (en) * | 2021-06-25 | 2021-08-24 | 徐州徐工矿业机械有限公司 | Unmanned brake hydraulic system of electric drive dumper |
| CN113650596A (en) * | 2021-09-16 | 2021-11-16 | 广西柳工机械股份有限公司 | Service braking system, control method and electric loader |
| CN113677577A (en) * | 2019-09-24 | 2021-11-19 | 日立建机株式会社 | Self-discharging vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109263622A (en) * | 2018-09-30 | 2019-01-25 | 广西柳工机械股份有限公司 | The full power hydraulic brake system and engineering machinery of combination valve and more braking approach |
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| CN110843904A (en) * | 2019-11-14 | 2020-02-28 | 湘电重型装备有限公司 | Integrated steering and braking control system of large electric wheel dumper |
| CN113291270A (en) * | 2021-06-25 | 2021-08-24 | 徐州徐工矿业机械有限公司 | Unmanned brake hydraulic system of electric drive dumper |
| CN113650596A (en) * | 2021-09-16 | 2021-11-16 | 广西柳工机械股份有限公司 | Service braking system, control method and electric loader |
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