CN106882173B - The braking method of the parking brake system of dumper - Google Patents

The braking method of the parking brake system of dumper Download PDF

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Publication number
CN106882173B
CN106882173B CN201710074806.9A CN201710074806A CN106882173B CN 106882173 B CN106882173 B CN 106882173B CN 201710074806 A CN201710074806 A CN 201710074806A CN 106882173 B CN106882173 B CN 106882173B
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China
Prior art keywords
mouthfuls
valve
mouth
oil
stopping brake
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CN201710074806.9A
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CN106882173A (en
Inventor
段建辉
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Fujian Baiyun Power Technology Co., Ltd.
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Fujian Baiyun Power Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/22Brakes applied by springs or weights and released hydraulically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms

Abstract

A kind of braking method of the parking brake system of dumper, the braking system used include accumulator, stopping brake valve, stopping brake oil cylinder, parking brake, fuel tank, filter, hydraulic pump, safety valve, lifting reversal valve, elevating ram, hydraulic control air valve, shuttle valve, manual flameout switch, gas bag, flame-out cylinder and Pneumatical hydraulic value.The parking brake system security performance of dumper of the invention is higher.

Description

The braking method of the parking brake system of dumper
Technical field
The present invention relates to a kind of dumpers, and in particular to a kind of braking method of the parking brake system of dumper.
Background technique
The parking brake system of the dumper of the prior art is as shown in Fig. 2, braking method is as follows: when dumper switch-off When carrying out stopping brake afterwards, generally by manual operation stopping brake valve, make A mouthfuls of the execution mouth and oil return inlet T of stopping brake valve Mouth communicates, and since the oil return inlet T mouth of stopping brake valve is communicated with fuel tank, the pressure oil in the rod chamber of stopping brake oil cylinder is returned to Fuel tank, thus the rod chamber of stopping brake oil cylinder does not have pressure oil, stopping brake oil cylinder is under spring force by piston Bar drives the dynamic and static plate of parking brake to combine, and dumper is made to have stopping brake.Dumper often occurs in practice Driver does not operate stopping brake valve after switch-off, and dumper does not carry out stopping brake, if at this moment dumper is parked on ramp Accident will occur, security performance is lower.In addition, dumper stop when also need sometimes carry out self-unloading operation, due to dumper into Power when row self-unloading operation is provided by hydraulic pump, and hydraulic pump need to by the power taking mouth of gearbox provide power, gearbox again by Driven by engine, thus at this moment the engine of dumper cannot stop working, but also need to carry out stopping brake, i.e., also need by manually grasping Make stopping brake valve, makes dumper that there is stopping brake.Also dumper can occur in practice not operate when carrying out self-unloading operation Stopping brake valve, dumper do not carry out stopping brake, if at this moment dumper is parked on ramp accident can occur, security performance compared with It is low.
Summary of the invention
The object of the present invention is to provide a kind of braking methods of the parking brake system of the higher dumper of security performance.
To achieve the goals above, the technical scheme is that
A kind of braking method of the parking brake system of dumper, the parking brake system include accumulator, stopping brake Valve, stopping brake oil cylinder and parking brake, the parking brake include movable plate and stationary plate, the oil inlet of the stopping brake valve P mouthfuls of mouth is connected to accumulator, and A mouthfuls of mouth of execution of stopping brake valve are connect with the rod chamber of stopping brake oil cylinder, stopping brake valve T mouthfuls of oil outlet be connected to fuel tank, the piston rod of the stopping brake oil cylinder is fixedly connected with the movable plate of parking brake, wound New point is:
A, further include fuel tank, filter, hydraulic pump, safety valve, lifting reversal valve, elevating ram, hydraulic control air valve, shuttle valve, Manual flameout switch, gas bag, flame-out cylinder and Pneumatical hydraulic value;
B, the oil inlet of the hydraulic pump is connected to by filter with fuel tank, oil outlet and the lifting reversal valve of hydraulic pump Oil inlet P mouth connection, lift reversal valve first execute mouth A mouthful by two oil channels respectively with the rodless cavity of elevating ram and liquid K mouthfuls of control mouth connections of air control valve, the second mouth B mouthfuls of the execution for lifting reversal valve are connected to the rod chamber of elevating ram;
C, P mouthfuls of the air inlet of the manual flameout switch is connected to gas bag, and A mouthfuls of execution mouth of manual flameout switch pass through two Gas channel is connected to the rodless cavity of A mouthfuls of the first air inlet of shuttle valve and flame-out cylinder respectively, and gas outlet T mouthfuls of manual flameout switch It is communicated with atmosphere, the piston rod of the flame-out cylinder is fixedly connected with the flameout switch of engine, the air inlet of the hydraulic control air valve P mouthfuls of mouth is connected to gas bag, and A mouthfuls of execution mouth of hydraulic control air valve are connected to C mouthfuls of the second air inlet of shuttle valve, the gas outlet of hydraulic control air valve T mouthfuls communicate with atmosphere;
D, the oil for executing the mouth A mouthfuls of rod chamber to stopping brake oil cylinder of stopping brake valve is arranged in the Pneumatical hydraulic value On channel, and A mouthfuls of execution mouth of the oil inlet P mouth of Pneumatical hydraulic value and stopping brake valve are connected to, the execution mouth A of Pneumatical hydraulic value Mouth is connected to the rod chamber of stopping brake oil cylinder, and T mouthfuls of oil outlet of Pneumatical hydraulic value are connected to fuel tank, the gas outlet of the shuttle valve B mouthfuls are connected to K mouthfuls of air control port of Pneumatical hydraulic value.
The oil outlet of the hydraulic pump to the oily channel of fuel tank is equipped with safety valve, and the oil inlet and hydraulic pump of safety valve Oil outlet connection, the oil outlet of safety valve is connected to fuel tank.
Benefit of the invention is that: 1), since when dumper need switch-off, driver operation manual flameout switch make P mouthfuls of air inlet of manual flameout switch are communicated with mouth A is executed, and the pressed gas in gas bag enters flame-out by manual flameout switch The rodless cavity of cylinder pushes the piston rod of flame-out cylinder to drive the flameout switch movement of engine, makes engine misses, while gas Pressed gas in packet, which enters after shuttle valve, arrives K mouthfuls of air control port of Pneumatical hydraulic value, makes A mouthfuls of the execution mouth and gas control of Pneumatical hydraulic value T mouthfuls of oil outlet of hydraulic valve communicate, and so that the rod chamber of stopping brake oil cylinder is not had pressure oil, stopping brake oil cylinder is in spring force Under the action of by piston rod drive parking brake movable plate and stationary plate combine, make dumper that there is stopping brake automatically.Stop Dumper carries out stopping brake automatically when vehicle is flame-out, thus security performance is higher.2), since self-unloading work need to be carried out when dumper Industry, engine cannot stop working, and can operate lifting reversal valve at this time, make the oil inlet P mouth for lifting reversal valve and execute mouth A mouthfuls of phase Logical, the pressure oil of hydraulic pump enters the rodless cavity of elevating ram through lifting reversal valve, and the compartment of dumper starts to lift, while liquid The pressure oil of press pump enters K mouthfuls of control mouth of hydraulic control air valve through lifting reversal valve, makes P mouthfuls of the air inlet of hydraulic control air valve and executes mouth A mouthfuls communicate, and after carriage lifting, under the action of compartment is self-possessed, the rodless cavity of elevating ram still has pressure oil, makes hydraulic control Mouth A mouthfuls with execution of P mouthfuls of air inlet of air valve still communicates, and the pressed gas in such gas bag is by hydraulic control air valve and through shuttle valve 8 To K mouthfuls of air control port of Pneumatical hydraulic value, communicates A mouthfuls of execution mouth of Pneumatical hydraulic value with T mouthfuls of oil outlet, make stopping brake oil cylinder Rod chamber do not have pressure oil, stopping brake oil cylinder under spring force by piston rod drive parking brake movable plate It is combined with stationary plate, makes dumper that there is stopping brake automatically.That is dumper carries out when self-unloading operation that non-switch-off also can be automatic Stopping brake is carried out, thus security performance is higher.
Detailed description of the invention
Fig. 1 is the schematic diagram of the parking brake system of dumper of the invention;
Fig. 2 is the parking brake system of the dumper of the prior art.
Specific embodiment
Below in conjunction with attached drawing and the embodiment provided, the present invention is further illustrated.
As shown in Figure 1, a kind of braking method of the parking brake system of dumper, braking system include accumulator 16, stop Vehicle brake valve 15, stopping brake oil cylinder 13 and parking brake 12, the parking brake 12 include movable plate 12-1 and stationary plate The oil inlet P mouth of 12-2, the stopping brake valve 15 are connected to accumulator 16, A mouthfuls of the execution mouth of stopping brake valve 15 and parking The rod chamber of brake cylinder 13 connects, and T mouthfuls of oil outlet of stopping brake valve 15 are connected to fuel tank 1, the stopping brake oil cylinder 13 Piston rod be fixedly connected with the movable plate 12-1 of parking brake 12, innovative point is:
Further include fuel tank 1, filter 2, hydraulic pump 3, safety valve 4, lifting reversal valve 5, elevating ram 6, hydraulic control air valve 7, Shuttle valve 8, manual flameout switch 9, gas bag 10, flame-out cylinder 11 and Pneumatical hydraulic value 14;
The oil inlet of the hydraulic pump 3 is connected to by filter 2 with fuel tank 1, the oil outlet and lifting reversal valve of hydraulic pump 3 5 oil inlet P mouth connection, the first of lifting reversal valve 5 execute mouth A mouthfuls by two oily channels respectively with elevating ram 6 without bar K mouthfuls of control mouth of chamber and hydraulic control air valve 7 are connected to, and the second of lifting reversal valve 5 executes the rod chamber company of mouth B mouthful and elevating ram 6 It is logical;When the rodless cavity of elevating ram 6 is passed through pressure oil, the carriage lifting of dumper, when the rod chamber of elevating ram 6 passes through pressure When power oil, the compartment of dumper declines.
P mouthfuls of air inlet of the manual flameout switch 9 are connected to gas bag 10, and A mouthfuls of execution mouth of manual flameout switch 9 pass through Two gas channels are connected to the rodless cavity of A mouthfuls of the first air inlet of shuttle valve 8 and flame-out cylinder 11 respectively, and manual flameout switch 9 goes out T mouthfuls of port communicate with atmosphere, and the piston rod of the flame-out cylinder 11 is fixedly connected with the flameout switch of engine, and stop working cylinder 11 Rodless cavity be passed through pressed gas after, stop working cylinder 11 piston rod drive engine flameout switch movement, put out engine P mouthfuls of air inlet of fire, the hydraulic control air valve 7 are connected to gas bag 10, the second air inlet for executing mouth A mouthfuls with shuttle valve 8 of hydraulic control air valve 7 C mouthfuls of connections of mouth, gas outlet T mouthfuls of hydraulic control air valve 7 are communicated with atmosphere;
The mouth A mouthfuls of rod chamber to stopping brake oil cylinder 13 that execute of stopping brake valve 15 is arranged in the Pneumatical hydraulic value 14 Oily channel on, and A mouthfuls of execution mouth of the oil inlet P mouth of Pneumatical hydraulic value 14 and stopping brake valve 15 are connected to, Pneumatical hydraulic value A mouthfuls of mouth of execution of 14 are connected to the rod chamber of stopping brake oil cylinder 13, and T mouthfuls of oil outlet of Pneumatical hydraulic value 14 are connected to fuel tank 1, K mouthfuls of air control port of gas outlet B mouthfuls of the shuttle valve 8 and Pneumatical hydraulic value 14 are connected to.
The oil outlet of the hydraulic pump 3 to the oily channel of fuel tank 1 is equipped with safety valve 4, and the oil inlet and liquid of safety valve 4 The oil outlet of press pump 3 is connected to, and the oil outlet of safety valve 4 is connected to fuel tank 1.
The course of work of the braking method is as follows: under normal circumstances, the oil inlet P mouth and execution mouth A of Pneumatical hydraulic value 14 Mouth communicates, and by manual operation stopping brake valve 15, communicates A mouthfuls of execution mouth of stopping brake valve 15 with oil return inlet T mouth, due to The oil return inlet T mouth of stopping brake valve 15 is communicated with fuel tank 1, thus the pressure oil in the rod chamber of stopping brake oil cylinder 13 is through gas control Hydraulic valve 14, stopping brake valve 15 return to fuel tank 1, and the rod chamber of stopping brake oil cylinder 13 is made not have pressure oil, stopping brake Oil cylinder 13 drives the movable plate 12-1 and stationary plate 12-2 of parking brake 12 to combine by piston rod under spring force, self-unloading Vehicle has stopping brake.
When dumper needs switch-off, driver operates manual flameout switch 9, makes the air inlet P of manual flameout switch 9 Mouth is communicated with mouth A is executed, and the pressed gas in gas bag 10 enters the rodless cavity of flame-out cylinder 11 by manual flameout switch 9, is pushed away The piston rod of dynamic flame-out cylinder 11 drives the flameout switch movement of engine, makes engine misses.Pressure in gas bag 10 simultaneously Gas enters A mouthfuls of the first air inlet of shuttle valve 8, and gas outlet B mouthfuls through shuttle valve 8 is arrived K mouthfuls of air control port of Pneumatical hydraulic value 14, is made A mouthfuls of the execution mouth of Pneumatical hydraulic value 14 is communicated with T mouthfuls of oil outlet of Pneumatical hydraulic value 14, T mouthfuls of the oil outlet of Pneumatical hydraulic value 14 It being communicated again with fuel tank 1, the pressure oil in the rod chamber of such stopping brake oil cylinder 13 returns in fuel tank 1 through Pneumatical hydraulic value 14, The rod chamber of stopping brake oil cylinder 13 is set not have pressure oil, stopping brake oil cylinder 13 is under spring force by piston rod band The movable plate 12-1 and stationary plate 12-2 of dynamic parking brake 12 are combined, and dumper is made to have stopping brake automatically.I.e. driver exists Even if not operating stopping brake valve 15 when switch-off, dumper can also carry out stopping brake automatically, if dumper is parked in this way Accident would not occur on ramp, security performance is higher.
It also needs to carry out self-unloading operation when dumper parking, since hydraulic oil pump 3 is mounted on the power taking mouth of gearbox, and Gearbox is by engine driving, and the engine of dumper cannot stop working at this time.Due to needing to carry out self-unloading operation at this time, thus need to grasp Make lifting reversal valve 5, communicate the oil inlet P mouth for lifting reversal valve 5 mouth A mouthfuls with execution, the pressure oil of hydraulic pump 3 is changed through lifting Enter the rodless cavity of elevating ram 6 to valve 5, the compartment of dumper starts to lift, while the pressure oil of hydraulic pump 3 commutates through lifting Valve 5 enters K mouthful of control mouth of hydraulic control air valve 7, make P mouthfuls of air inlet of hydraulic control air valve 7 with execution mouth A mouthfuls communicate, carriage lifting knot Shu Hou, operation lifting reversal valve 5 make mouth A mouthfuls of the oil inlet P mouth for lifting reversal valve 5 and the first execution and the second mouth B mouthfuls of execution It is not communicated with, under the action of compartment is self-possessed, the rodless cavity of elevating ram 6 still has pressure oil, therefore the control mouth of hydraulic control air valve 7 K mouthfuls still have pressure oil, communicate P mouthful of the air inlet of hydraulic control air valve 7 still for mouth A mouthfuls with execution, the pressure in such gas bag 10 Gas enters C mouthfuls of the second air inlet of shuttle valve 8 by hydraulic control air valve 7, and gas outlet B mouthfuls through shuttle valve 8 is arrived Pneumatical hydraulic value 14 K mouthfuls of air control port, make A mouthfuls of the execution mouth of Pneumatical hydraulic value 14 and T mouthfuls of oil outlet of Pneumatical hydraulic value 14 communicate, Pneumatical hydraulic value 14 oil outlet T is communicated with fuel tank 1 again, and the pressure oil in the rod chamber of such stopping brake oil cylinder 13 is returned through Pneumatical hydraulic value 14 Into fuel tank 1, the rod chamber of stopping brake oil cylinder 13 is set not have pressure oil, stopping brake oil cylinder 13 is under spring force It drives the movable plate 12-1 and stationary plate 12-2 of parking brake 12 to combine by piston rod, makes dumper that there is stopping brake automatically. Even if i.e. driver does not operate stopping brake valve 15 when carrying out self-unloading operation, dumper can also carry out stopping brake automatically, this If sample dumper, which is parked on ramp, would not occur accident, security performance is higher.

Claims (2)

1. a kind of braking method of the parking brake system of dumper, which includes accumulator (16), parking system Dynamic valve (15), stopping brake oil cylinder (13) and parking brake (12), the parking brake (12) include movable plate (12-1) and The oil inlet P mouth of stationary plate (12-2), the stopping brake valve (15) is connected to accumulator (16), and stopping brake valve (15) are held A mouthfuls of row mouth connect with the rod chamber of stopping brake oil cylinder (13), and T mouthfuls of oil outlet of stopping brake valve (15) are connected to fuel tank (1), The piston rod of the stopping brake oil cylinder (13) is fixedly connected with the movable plate (12-1) of parking brake (12), further includes fuel tank (1), filter (2), hydraulic pump (3), safety valve (4), lifting reversal valve (5), elevating ram (6), hydraulic control air valve (7), shuttle valve (8), manual flameout switch (9), gas bag (10), flame-out cylinder (11) and Pneumatical hydraulic value (14);It is characterized by:
The oil inlet of the hydraulic pump (3) is connected to by filter (2) with fuel tank (1), and the oil outlet of hydraulic pump (3) is changed with lifting To the oil inlet P mouth of valve (5) be connected to, lifting reversal valve (5) first execute mouth A mouthful by two oil channels respectively with elevating ram (6) K mouthfuls of control mouth of rodless cavity and hydraulic control air valve (7) are connected to, the second of lifting reversal valve (5) execute mouth B mouthful it is oily with lifting The rod chamber of cylinder (6) is connected to;
P mouthfuls of air inlet of the manual flameout switch (9) are connected to gas bag (10), and A mouthfuls of execution mouth of manual flameout switch (9) are logical It crosses two gas channels to be connected to the rodless cavity of A mouthfuls of the first air inlet of shuttle valve (8) and flame-out cylinder (11) respectively, manual flameout switch (9) gas outlet T mouthfuls is communicated with atmosphere, and the piston rod of the flame-out cylinder (11) is fixedly connected with the flameout switch of engine, P mouthfuls of air inlet of the hydraulic control air valve (7) are connected to gas bag (10), A mouthfuls of the execution mouth of hydraulic control air valve (7) and the of shuttle valve (8) The connection of two C mouthfuls of air inlets, gas outlet T mouthfuls of hydraulic control air valve (7) are communicated with atmosphere;
The Pneumatical hydraulic value (14) setting has bar to stopping brake oil cylinder (13) in A mouthfuls of execution mouth of stopping brake valve (15) On the oily channel of chamber, and A mouthfuls of execution mouth of the oil inlet P mouth of Pneumatical hydraulic value (14) and stopping brake valve (15) are connected to, gas control A mouthfuls of execution mouth of hydraulic valve (14) are connected to the rod chamber of stopping brake oil cylinder (13), the oil outlet T of Pneumatical hydraulic value (14) Mouth is connected to fuel tank (1), and gas outlet B mouthfuls of the shuttle valve (8) is connected to K mouthfuls of air control port of Pneumatical hydraulic value (14);
, when dumper needs switch-off the braking method control process is as follows: 1), driver operates manual flameout switch, P mouthfuls of air inlet of manual flameout switch are made to communicate with mouth A is executed, the pressed gas in gas bag enters by manual flameout switch to be put out The rodless cavity of internal heat cylinder pushes the piston rod of flame-out cylinder to drive the flameout switch movement of engine, makes engine misses, simultaneously Pressed gas in gas bag, which enters after shuttle valve, arrives K mouthfuls of air control port of Pneumatical hydraulic value, makes A mouthfuls of the execution mouth and gas of Pneumatical hydraulic value T mouthfuls of oil outlet of draining pressure valve communicate, and so that the rod chamber of stopping brake oil cylinder is not had pressure oil, stopping brake oil cylinder is in spring It drives the movable plate of parking brake and stationary plate to combine by piston rod under the action of power, makes dumper that there is stopping brake automatically;2), When dumper need to carry out self-unloading operation, engine cannot stop working, and can operate lifting reversal valve at this time, make the oil inlet for lifting reversal valve Mouthfuls P mouthful with execution mouth A mouthfuls communicate, the pressure oil of hydraulic pump enters the rodless cavity of elevating ram through lifting reversal valve, dumper Compartment starts to lift, while K mouthfuls of control mouth that the pressure oil of hydraulic pump enters hydraulic control air valve through lifting reversal valve, makes hydraulic control air valve P mouthfuls of air inlet with execute mouth A mouthful and communicate, after carriage lifting, in compartment under the action of self weight, the rodless cavity of elevating ram Still there is pressure oil, communicate P mouthful of the air inlet of hydraulic control air valve still for mouth A mouthfuls with execution, the pressed gas in such gas bag passes through It crosses hydraulic control air valve and arrives K mouthfuls of air control port of Pneumatical hydraulic value through shuttle valve (8), make A mouthfuls of the execution mouth and oil outlet T of Pneumatical hydraulic value Mouth communicates, and so that the rod chamber of stopping brake oil cylinder is not had pressure oil, stopping brake oil cylinder is under spring force by piston Bar drives the movable plate of parking brake and stationary plate to combine, and dumper is made to have stopping brake automatically, i.e. dumper carries out self-unloading work Non- switch-off can also carry out stopping brake automatically when industry, thus security performance is higher.
2. the braking method of the parking brake system of dumper according to claim 1, it is characterised in that: the hydraulic pump (3) oil outlet to the oily channel of fuel tank (1) is equipped with safety valve (4), and the oil inlet of safety valve (4) and hydraulic pump (3) Oil outlet connection, the oil outlet of safety valve (4) are connected to fuel tank (1).
CN201710074806.9A 2017-02-12 2017-02-12 The braking method of the parking brake system of dumper Active CN106882173B (en)

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CN201710074806.9A CN106882173B (en) 2017-02-12 2017-02-12 The braking method of the parking brake system of dumper

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Application Number Priority Date Filing Date Title
CN201710074806.9A CN106882173B (en) 2017-02-12 2017-02-12 The braking method of the parking brake system of dumper

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CN106882173B true CN106882173B (en) 2019-03-26

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* Cited by examiner, † Cited by third party
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CN108177640A (en) * 2018-01-30 2018-06-19 袁菊花 The stop device of vehicle
CN110745743A (en) * 2018-02-10 2020-02-04 金福珍 Forklift and working method thereof
CN108068620B (en) * 2018-03-07 2020-09-04 台州市黄岩秋园模具有限公司 Vehicle safety device for preventing mistaken stepping on accelerator
CN111959473A (en) * 2018-05-05 2020-11-20 吴彬 Working method of vehicle
CN108909699B (en) * 2018-08-25 2020-11-10 南京朗禾数据有限公司 Linkage control device for gear and parking brake of vehicle
CN109515420A (en) * 2018-12-20 2019-03-26 刘剑 The stop device of vehicle
CN110588617A (en) * 2019-09-02 2019-12-20 中国煤炭科工集团太原研究院有限公司 Control system for realizing driving and emergency parking braking functions of front wheels and rear wheels of explosion-proof vehicle

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US5040851A (en) * 1989-06-23 1991-08-20 Kabushiki Kaisha Kobe Seiko Sho Pneumatic circuit for wheel mounted shovel
CN201753040U (en) * 2010-07-02 2011-03-02 北汽福田汽车股份有限公司 Packing case lifting safety control device
CN104828135A (en) * 2014-12-22 2015-08-12 北汽福田汽车股份有限公司 Hydraulic control system and mining dump truck with same
CN106004840A (en) * 2016-07-29 2016-10-12 王付民 Vehicle stopping brake control system

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US5040851A (en) * 1989-06-23 1991-08-20 Kabushiki Kaisha Kobe Seiko Sho Pneumatic circuit for wheel mounted shovel
CN201753040U (en) * 2010-07-02 2011-03-02 北汽福田汽车股份有限公司 Packing case lifting safety control device
CN104828135A (en) * 2014-12-22 2015-08-12 北汽福田汽车股份有限公司 Hydraulic control system and mining dump truck with same
CN106004840A (en) * 2016-07-29 2016-10-12 王付民 Vehicle stopping brake control system

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