CN207195340U - Hydraulic guide control valve group and dumper - Google Patents
Hydraulic guide control valve group and dumper Download PDFInfo
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- CN207195340U CN207195340U CN201721121821.6U CN201721121821U CN207195340U CN 207195340 U CN207195340 U CN 207195340U CN 201721121821 U CN201721121821 U CN 201721121821U CN 207195340 U CN207195340 U CN 207195340U
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Abstract
The utility model provides a kind of Hydraulic guide control valve group and dumper, is related to the technical field of hydraulic system, including accumulator and control valve group；Control valve group is connected with accumulator, for adjusting flow from accumulator to the hydraulic oil of brakes, steering and lifting pilot system conveying and pressure.Hydraulic guide control valve group provided by the utility model controls hydraulic vehicle brake, while can be emergent steering and lifting pilot system fuel feeding.Compared with aerobraking, for the brake pressure of hydraulic braking up to 10 20MPa, the brake force of hydraulic braking is bigger, is more suitable for heavy mine car of the complete vehicle weight more than 60 tons.Also, hydraulic braking lag time is 0.1 0.3S, hydraulic braking is more excellent.Therefore, vehicle is using hydraulic braking compared to air-pressure brake, and hydraulic braking force is bigger, more reliable, and the response time is relatively short, and Hydraulic guide control valve group is applied to driving and the parking function that dumper can guarantee that dumper.
Description
Technical field
Hydraulic system technical field is the utility model is related to, more particularly, to a kind of Hydraulic guide control valve group and self-unloading
Car.
Background technology
Heavy-duty, the trend of maximization always vehicle development of off-highway quarry tipper, at present China's independent research
Maximum tonnage quarry tipper can reach 400t levels, make available for areas such as the large-scale water resources and hydropower construction of country, Mining area resources
With, but traditional quarry tipper is expensive, in some private mining areas because resource content is few, the low, fund of efficient profit
The reason such as inadequate is not selected to use large-scale mine dumper, and most of small mining area private owners are all transported using heavy truck
Rock, dregs are sent, a kind of means of transport for being used primarily in surface mine earthwork layer occurs in the nearest country：Self-unloading that expanded letter is mining
Car.The arrangement form of expanded letter quarry tipper application road dump truck power drive system and mine truck offset cab,
And on the basis of its basic function is ensured, some key positions are transformed, include the reinforcement of suspension, compartment adds
It is high, widen and its reinforcement of frame section, it is more suitable for mine construction.
Wide dumper on domestic market is typically used using the brake system of air pressure drum braking, lifting valve mostly
Pneumatic guide but the brake pressure of air-pressure brake is generally 0.5-0.7MPa, be not suitable for heavy type of the complete vehicle weight more than 60 tons
Mine car, and air pressure lag time (0.3-0.9S) is longer.
Utility model content
The purpose of this utility model is to provide a kind of Hydraulic guide control valve group and dumper, can ensure dumper
Hydraulic braking, vehicle is using hydraulic braking compared to air-pressure brake, and hydraulic braking force is bigger, more reliable, and the response time is relative
It is shorter.
To achieve the above object, the utility model provides following technical scheme：
In a first aspect, the utility model provides a kind of Hydraulic guide control valve group, applied to dumper, including：Accumulator
With braking valve module；
The braking valve module is connected with the accumulator, the hydraulic pressure conveyed for adjusting the accumulator to brakes
The flow and pressure of oil.
Further, the braking valve module includes service brake valve module and parking braking valve module；
The service brake valve module includes electric proportional pressure-reducing valve, arrival end and the accumulation of energy of the electric proportional pressure-reducing valve
Device connects, and the port of export of the electric proportional pressure-reducing valve is used to connect service braking system；
The parking braking valve module includes the first solenoid directional control valve and the first overflow pressure-reducing valve, first electromagnetic switch
The arrival end of valve is connected with the accumulator, and the port of export of first solenoid directional control valve is connected with the first pipeline and the second pipe
Road, first pipeline are used to connect preceding parking braking system, away from first solenoid directional control valve on second pipeline
One end is connected with the arrival end of the first overflow pressure-reducing valve, and the port of export of the first overflow pressure-reducing valve is used for parking after connecting
Brakes.
Further, first pipeline is provided with the first pressure measuring tie-in, and first pressure measuring tie-in is described for detecting
Pressure in first pipeline.
Further, the export pipeline of the first overflow pressure-reducing valve is provided with the second pressure measuring tie-in, second pressure measurement
Joint is used to detect the pressure in the export pipeline of the first overflow pressure-reducing valve.
Further, Hydraulic guide control valve group also includes the oil supply system to the accumulator fuel feeding；
The oil supply system includes pressure sensor, main control unit and oil feed pump；
The pressure sensor is arranged on the entrance pipe of the accumulator, and is connected with the main control unit signal, uses
In gathering pressure information in the entrance pipe and send the pressure information to the main control unit；
The main control unit, for receiving the pressure information and generating control command according to the pressure information, and will
The control command is sent to the oil feed pump；
The oil feed pump, it is connected with the main control unit signal, for receiving the control command of the main control unit, and root
The conveying capacity of the oil feed pump is adjusted according to the control command.
Further, the pipeline between the oil feed pump and the accumulator, which is provided with, prevents pressure oil to the oil feed pump
The check valve of backflow.
Further, it is additionally provided with overflow valve between the oil feed pump and the check valve.
Further, Hydraulic guide control valve group also includes being used to adjust the defeated accumulator of institute to lifting pilot system conveying liquid
The flow of force feed and the lifting valve module of pressure；
The lifting valve module includes the second overflow pressure-reducing valve, arrival end and the accumulation of energy of the second overflow pressure-reducing valve
Device connects, and the port of export of the second overflow pressure-reducing valve is used to connect the lifting pilot system.
Further, Hydraulic guide control valve group also includes being used to adjust the defeated accumulator of institute to steering delivery hydraulic pressure oil
Flow and pressure diverter valve；
The diverter valve includes the second solenoid directional control valve, arrival end and the accumulation of energy of second solenoid directional control valve
Device connects, and the port of export of second solenoid directional control valve is used to connect the steering.
Second aspect, the utility model also provide a kind of dumper, including lifting pilot system, steering and braking system
System, in addition to the Hydraulic guide control valve group any one of first aspect；
The brakes includes service braking system, preceding parking braking system and rear parking braking system；
The lifting valve module of the Hydraulic guide control valve group is connected with the lifting pilot system；
The diverter valve of the Hydraulic guide control valve group is connected with the steering；
The service brake valve module of the Hydraulic guide control valve group is connected with the service braking system；
First pipeline of the Hydraulic guide control valve group is connected with the preceding parking braking system, the second overflow pressure-reducing valve
It is connected with the rear parking braking system.
Hydraulic guide control valve group provided by the utility model and dumper have the advantages that：
The utility model first aspect provides a kind of Hydraulic guide control valve group, including：Accumulator and braking valve module；System
Dynamic valve module is connected with accumulator, the flow and pressure of the hydraulic oil conveyed for adjusting accumulator to brakes.
The Hydraulic guide control valve group that the utility model first aspect provides, applied in self-dumping truck braking system, brake
When, pressure oil flows back to fuel tank, the brake system of dumper through braking valve module；During operation, pressure oil is through braking valve module
Brakes is flowed to, brakes stops braking, and vehicle can be run.The braking amount of brakes can be by braking valve module
Flow controls.
The Hydraulic guide control valve group control hydraulic vehicle brake that the utility model first aspect provides, with aerobraking phase
Than for the brake pressure of hydraulic braking up to 10-20MPa, the brake force of hydraulic braking is bigger, is more suitable for complete vehicle weight more than 60
The heavy mine car of ton.Also, hydraulic braking lag time is 0.1-0.3S, hydraulic braking is more excellent.Therefore, vehicle uses hydraulic pressure system
Move compared to air-pressure brake, hydraulic braking force is bigger, more reliable, and the response time is relatively short, and Hydraulic guide control valve group should
Driving and the parking function of dumper are can guarantee that for dumper.
The dumper that the utility model second aspect provides is provided with the hydraulic pilot of the utility model first aspect offer
Control valve group, so as to all possessed beneficial effects of the Hydraulic guide control valve group provided with the utility model first aspect
Fruit.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the Hydraulic guide control valve group that the utility model embodiment provides；
Fig. 2 is the schematic diagram for the oil supply system that the utility model embodiment provides.
Icon：1- accumulators；2- electricity proportional pressure-reducing valves；The solenoid directional control valves of 3- first；The pipelines of 4- first；The pipelines of 5- second；
6- the first overflow pressure-reducing valves；The pressure measuring tie-ins of 7- first；The pressure measuring tie-ins of 8- second；9- pressure sensors；10- main control units；11- is supplied
Oil pump；12- check valves；13- overflow valves；14- the second overflow pressure-reducing valves；The solenoid directional control valves of 15- second.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Referring to Fig.1 and 2, the Hydraulic guide control valve group provided below in conjunction with accompanying drawing the utility model embodiment
And dumper elaborates.
The embodiment of the utility model first aspect provides a kind of Hydraulic guide control valve group, applied to dumper, bag
Include：Accumulator 1 and braking valve module；
Braking valve module be connected with accumulator 1, the flow of the hydraulic oil conveyed for adjusting accumulator 1 to brakes with
Pressure.
It should be noted that the Hydraulic guide control valve group that the embodiment of the utility model first aspect provides, is applied to
In self-dumping truck braking system, during braking, pressure oil flows back to fuel tank, the brake system of dumper through braking valve module；Operation
When, pressure oil flows to brakes through braking valve module, and brakes stops braking, and vehicle can be run.The system of brakes
Momentum can be controlled by the flow of braking valve module.
The Hydraulic guide control valve group control hydraulic vehicle brake that the embodiment of the utility model first aspect provides, with gas
Dynamic braking is compared, and for the brake pressure of hydraulic braking up to 10-20MPa, the brake force of hydraulic braking is bigger, is more suitable for vehicle weight
Measure the heavy mine car more than 60 tons.Also, hydraulic braking lag time is 0.1-0.3S, hydraulic braking is more excellent.Therefore, vehicle is adopted
With hydraulic braking compared to air-pressure brake, hydraulic braking force is bigger, more reliable, and the response time is relatively short, hydraulic pilot control
Valve group processed is applied to driving and the parking function that dumper can guarantee that dumper.
In the present embodiment, braking valve module includes service brake valve module and parking braking valve module；
Service brake valve module includes electric proportional pressure-reducing valve 2, and the arrival end of electric proportional pressure-reducing valve 2 is connected with accumulator 1, electricity
The port of export of proportional pressure-reducing valve 2 is used to connect service braking system；
Parking braking valve module includes the first solenoid directional control valve 3 and the first overflow pressure-reducing valve 6, the first solenoid directional control valve 3
Arrival end is connected with accumulator 1, and the port of export of the first solenoid directional control valve 3 is connected with the first pipeline 4 and the second pipeline 5, the first pipe
Road 4 is used to connect preceding parking braking system, and one end away from the first solenoid directional control valve 3 is depressurized with the first overflow on the second pipeline 5
The arrival end connection of valve 6, the port of export of the first overflow pressure-reducing valve 6 are used for parking braking system after connecting.
It should be noted that electric proportional pressure-reducing valve 2 is connected with rear service brake provides service brake pressure oil, electric ratio subtracts
Pressure is controlled by the driving handle in driver's cabin, and the size of output pressure is relevant with the stroke that handle inputs.
The first solenoid directional control valve 3 can be two-bit triplet solenoid directional control valve in the present embodiment.Two-bit triplet solenoid directional control valve
Arrival end be connected with accumulator 1, the port of export is connected with front and rear parking braking hydraulic fluid port respectively, FPP mouths connection before parking braking oil
Mouthful, parking braking hydraulic fluid port after the connection of RPP mouths end, the first overflow is provided between rear parking braking and two-bit triplet solenoid directional control valve
Pressure-reducing valve 6, the size of parking pressure relief value after the first overflow pressure-reducing valve 6 can be set, two-bit triplet solenoid directional control valve lead to
It is disconnected by driver's cabin parking braking rocker switch controlled, when parking braking rocker switch be in parking braking releasing
When, electromagnet YV1 obtains electric, and parking braking is released, and otherwise, implements parking braking.
In the present embodiment, the first pipeline 4 is provided with the first pressure measuring tie-in 7, and the first pressure measuring tie-in 7 is used to detect the first pipeline
Pressure in 4.
In the present embodiment, the export pipeline of the first overflow pressure-reducing valve 6 is provided with the second pressure measuring tie-in 8, the second pressure measuring tie-in 8
The pressure in export pipeline for detecting the first overflow pressure-reducing valve 6.
It should be noted that whole Hydraulic guide control valve group is additionally provided with two pressure taps G2 and G3, that is, first
The pressure measuring tie-in 8 of pressure measuring tie-in 7 and second.The oil pressure of parking braking hydraulic fluid port before being measured by the first pressure measuring tie-in 7, by the
The oil pressure of parking braking hydraulic fluid port after two pressure measuring tie-ins 8 can measure.
In the present embodiment, Hydraulic guide control valve group also includes the oil supply system to the fuel feeding of accumulator 1；
Oil supply system includes pressure sensor 9, main control unit 10 and oil feed pump 11；
Pressure sensor 9 is arranged on the entrance pipe of accumulator 1, and is connected with the signal of main control unit 10, for gather into
Pressure information and pressure information is sent in mouthful pipeline to main control unit 10；
Main control unit 10, for receiving pressure information and generating control command according to pressure information, and control command is sent out
Deliver to oil feed pump 11；
Oil feed pump 11, it is connected with the signal of main control unit 10, for receiving the control command of main control unit 10, and according to control
The conveying capacity of order regulation oil feed pump 11.
In the present embodiment, the pipeline between oil feed pump 11 and accumulator 1, which is provided with, prevents pressure oil from being flowed back to oil feed pump 11
Check valve 12.
It should be noted that oil feed pump 11 is specifically as follows electronic pump group.The pressure oil port and hydraulic pilot of electronic pump group
The P mouths connection of control valve group, there is provided pressure oil.P mouths pressure oil connects through check valve 12 and accumulator 1, and G1 mouths enter with accumulator 1
Mouth ACC is connected, and G1 mouths are provided with pressure sensor 9, whole when the pressure of accumulator 1 is less than pressure initial set value P0
The main control unit 10 of vehicle controller sends work order and gives motor pump group, and motor pump group is started working, in addition when the pressure of accumulator 1
When power is higher than initial set value P1, and P1 is more than P0, and the main control unit 10 of entire car controller sends halt instruction and gives motor pump group,
Motor pump group is stopped.
In the present embodiment, overflow valve 13 is additionally provided between oil feed pump 11 and check valve 12.
It should be noted that overflow valve 13 is the safety valve of whole hydraulic pilot system, it sets pressure as P2, and P2 is high
When the oil pressure in P1 values, the export pipeline of oil feed pump 11 is more than P2, pressure oil flows meeting fuel tank from overflow valve 13, and overflow valve 13 rises
To the effect for protecting whole hydraulic system.
In the present embodiment, Hydraulic guide control valve group also includes defeated to lifting pilot system for adjusting the defeated accumulator 1 of institute
The flow of liquor charging force feed and the lifting valve module of pressure；
Lifting valve module includes the second overflow pressure-reducing valve 14, and the arrival end of the second overflow pressure-reducing valve 14 is connected with accumulator 1,
The port of export of second overflow pressure-reducing valve 14 is used to connect lifting pilot system.
It should be noted that the entrance of the second overflow pressure-reducing valve 14 is connected with accumulator 1, the port of export gives lifting pilot valve
Fuel feeding, the lifting pilot system for lifting pilot valve and dumper connect.
In the present embodiment, Hydraulic guide control valve group also includes being used to adjust the defeated accumulator 1 of institute to steering conveying liquid
The flow of force feed and the diverter valve of pressure；
Diverter valve includes the second solenoid directional control valve 15, and the arrival end of the second solenoid directional control valve 15 is connected with accumulator 1,
The port of export of second solenoid directional control valve 15 is used to connect steering.
It should be noted that the second solenoid directional control valve 15 can be 2/2-way solenoid directional control valve in the present embodiment, two
Two electric change valves are controlled by the rocker switch in driver's cabin, when the rocker switch in driver's cabin is in brake hard
During implementation state, electromagnet YV2 obtain it is electric, implement it is emergent turn to, otherwise it is closed.
The embodiment of the utility model second aspect provides a kind of dumper, including lifting pilot system, steering and
Any Hydraulic guide control valve group in brakes, in addition to the embodiment of first aspect；
Brakes includes service braking system, preceding parking braking system and rear parking braking system；
The lifting valve module of Hydraulic guide control valve group is connected with lifting pilot system；
The diverter valve of Hydraulic guide control valve group is connected with steering；
The service brake valve module of Hydraulic guide control valve group is connected with service braking system；
First pipeline 4 of Hydraulic guide control valve group is connected with preceding parking braking system, and the second overflow pressure-reducing valve 14 is with after
Parking braking system connects.
The dumper that the embodiment of the utility model second aspect provides is provided with the implementation of the utility model first aspect
The Hydraulic guide control valve group that example provides, the Hydraulic guide control provided so as to the embodiment with the utility model first aspect
All beneficial effects possessed by valve group.
Hydraulic guide control valve group is applied to the brakes of dumper, ensures driving and the parking function of dumper；Liquid
Press pilot control valve group to be applied to the lifting pilot system of dumper, ensure guide's fuel feeding of lifting pilot system；Hydraulic pilot
Control valve group is applied to dumper steering, ensures the emergent steering of wide dumper；Whole hydraulic system is provided with accumulation of energy
Device 1, most of the time are all the fuel feeding of accumulator 1, and motor pump group is in halted state, on the one hand can save, in addition can also
Ensure the service life of motor pump group；Hydraulic guide control valve group is applied in self-dumping truck braking system, and vehicle uses hydraulic pressure system
Move compared to air-pressure brake, hydraulic braking force is bigger, more reliable, and the response time is relatively short.Hydraulic guide control valve group should
For in self-dumping truck braking system, compared to the wide dumper on current market, adding emergent turning function, security performance
It is more secure.
Hydraulic guide control valve group of the present utility model and dumper are illustrated above, still, the utility model
Be not limited to above-mentioned specific embodiment, without departing from the scope of claim, can carry out various deformations or
Change.The various modifications and change that the utility model is included within the scope of the claims.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should manage
Solution：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole skills
Art feature carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model
The scope of each embodiment technical scheme.
Claims (10)
- A kind of 1. Hydraulic guide control valve group, applied to dumper, it is characterised in that including：Accumulator (1) and braking valve group Part；The braking valve module is connected with the accumulator (1), the liquid conveyed for adjusting the accumulator (1) to brakes The flow and pressure of force feed.
- 2. Hydraulic guide control valve group according to claim 1, it is characterised in that the braking valve module includes driving and made Dynamic valve module and parking braking valve module；The service brake valve module includes electric proportional pressure-reducing valve (2), arrival end and the storage of the electric proportional pressure-reducing valve (2) Energy device (1) connection, the port of export of the electric proportional pressure-reducing valve (2) are used to connect service braking system；The parking braking valve module includes the first solenoid directional control valve (3) and the first overflow pressure-reducing valve (6), first electromagnetism change It is connected to the arrival end of valve (3) with the accumulator (1), the port of export of first solenoid directional control valve (3) is connected with the first pipe Road (4) and the second pipeline (5), first pipeline (4) is used to connect preceding parking braking system, remote on second pipeline (5) One end from first solenoid directional control valve (3) is connected with the arrival end of the first overflow pressure-reducing valve (6), first overflow The port of export of pressure-reducing valve (6) is used for parking braking system after connecting.
- 3. Hydraulic guide control valve group according to claim 2, it is characterised in that first pipeline (4) is provided with the One pressure measuring tie-in (7), first pressure measuring tie-in (7) are used to detect the pressure in first pipeline (4).
- 4. Hydraulic guide control valve group according to claim 2, it is characterised in that the first overflow pressure-reducing valve (6) Export pipeline is provided with the second pressure measuring tie-in (8), and second pressure measuring tie-in (8) is used to detect the first overflow pressure-reducing valve (6) the pressure in export pipeline.
- 5. Hydraulic guide control valve group according to claim 1, it is characterised in that also include supplying to the accumulator (1) The oil supply system of oil；The oil supply system includes pressure sensor (9), main control unit (10) and oil feed pump (11)；The pressure sensor (9) is arranged on the entrance pipe of the accumulator (1), and connects with the main control unit (10) signal Connect, for gathering pressure information in the entrance pipe and sending the pressure information to the main control unit (10)；The main control unit (10), for receiving the pressure information and generating control command according to the pressure information, and will The control command is sent to the oil feed pump (11)；The oil feed pump (11), it is connected with the main control unit (10) signal, for receiving the control of the main control unit (10) Order, and according to the conveying capacity of the control command regulation oil feed pump (11).
- 6. Hydraulic guide control valve group according to claim 5, it is characterised in that the oil feed pump (11) and the accumulation of energy Pipeline between device (1) is provided with the check valve (12) for preventing that pressure oil from flowing back to the oil feed pump (11).
- 7. Hydraulic guide control valve group according to claim 6, it is characterised in that the oil feed pump (11) with it is described unidirectional Overflow valve (13) is additionally provided between valve (12).
- 8. Hydraulic guide control valve group according to claim 1, it is characterised in that also include being used to adjust the defeated accumulator of institute (1) flow to lifting pilot system delivery hydraulic pressure oil and the lifting valve module of pressure；The lifting valve module includes the second overflow pressure-reducing valve (14), the arrival end of the second overflow pressure-reducing valve (14) with it is described Accumulator (1) connects, and the port of export of the second overflow pressure-reducing valve (14) is used to connect the lifting pilot system.
- 9. Hydraulic guide control valve group according to claim 1, it is characterised in that also include being used to adjust the defeated accumulator of institute (1) flow to steering delivery hydraulic pressure oil and the diverter valve of pressure；The diverter valve includes the second solenoid directional control valve (15), the arrival end of second solenoid directional control valve (15) with it is described Accumulator (1) connects, and the port of export of second solenoid directional control valve (15) is used to connect the steering.
- 10. a kind of dumper, it is characterised in that including lifting pilot system, steering and brakes, in addition to right will Seek the Hydraulic guide control valve group any one of 1 to 9；The brakes includes service braking system, preceding parking braking system and rear parking braking system；The lifting valve module of the Hydraulic guide control valve group is connected with the lifting pilot system；The diverter valve of the Hydraulic guide control valve group is connected with the steering；The service brake valve module of the Hydraulic guide control valve group is connected with the service braking system；The first pipeline (4) of the Hydraulic guide control valve group is connected with the preceding parking braking system, the second overflow pressure-reducing valve (14) it is connected with the rear parking braking system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721121821.6U CN207195340U (en) | 2017-09-04 | 2017-09-04 | Hydraulic guide control valve group and dumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721121821.6U CN207195340U (en) | 2017-09-04 | 2017-09-04 | Hydraulic guide control valve group and dumper |
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| Publication Number | Publication Date |
|---|---|
| CN207195340U true CN207195340U (en) | 2018-04-06 |
Family
ID=61790725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721121821.6U Active CN207195340U (en) | 2017-09-04 | 2017-09-04 | Hydraulic guide control valve group and dumper |
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| Country | Link |
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| CN (1) | CN207195340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561352A (en) * | 2018-04-09 | 2018-09-21 | 广西柳工机械股份有限公司 | Prefill valve and quarry tipper hydraulic system |
| CN110566521A (en) * | 2019-08-23 | 2019-12-13 | 安徽合力股份有限公司 | automatic explosion-proof fork truck hydraulic system of control |
| CN111791950A (en) * | 2020-07-17 | 2020-10-20 | 中车大同电力机车有限公司 | Integrated steering brake valve bank for mining dump truck and mining dump truck |
-
2017
- 2017-09-04 CN CN201721121821.6U patent/CN207195340U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561352A (en) * | 2018-04-09 | 2018-09-21 | 广西柳工机械股份有限公司 | Prefill valve and quarry tipper hydraulic system |
| CN108561352B (en) * | 2018-04-09 | 2020-02-25 | 广西柳工机械股份有限公司 | Prefill valve and mining dump truck hydraulic system |
| CN110566521A (en) * | 2019-08-23 | 2019-12-13 | 安徽合力股份有限公司 | automatic explosion-proof fork truck hydraulic system of control |
| CN110566521B (en) * | 2019-08-23 | 2024-05-10 | 安徽合力股份有限公司 | Automatic explosion-proof fork truck hydraulic system of control |
| CN111791950A (en) * | 2020-07-17 | 2020-10-20 | 中车大同电力机车有限公司 | Integrated steering brake valve bank for mining dump truck and mining dump truck |
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Effective date of registration: 20200716 Address after: 471000 bearing industry garden, industrial agglomeration area, Luoyang, Henan, Yiyang Patentee after: Luoyang Heneng Electric Co.,Ltd. Address before: 315000 Zhejiang city of Ningbo province Xiangshan County Xian Xiang Zhen Ao Lane Patentee before: ZICHENG (NINGBO) ELECTRIC HEAVY TRUCK Co.,Ltd. |