CN107435666A - High-altitude system watt car and its pump hydraulic system - Google Patents
High-altitude system watt car and its pump hydraulic system Download PDFInfo
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- CN107435666A CN107435666A CN201710450373.2A CN201710450373A CN107435666A CN 107435666 A CN107435666 A CN 107435666A CN 201710450373 A CN201710450373 A CN 201710450373A CN 107435666 A CN107435666 A CN 107435666A
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- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of high-altitude system watt car and its pump hydraulic system.Large discharge pump and small displacement pump are connected with hydraulic oil container, the rated discharge of large discharge pump is more than the rated discharge of small displacement pump, large discharge pump is connected with operation valve and swivel coupling in turn by the first check valve, the downstream of operation valve is simultaneously connected to cross cylinder and Vertical Cylinders, and swivel coupling downstream is by reversal valve and connects amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreels oil cylinder and cutter cylinder；Small displacement pump is confluxed by the second check valve to be connected on the large discharge pump oil extraction oil circuit of operation valve and swivel coupling.In a manner of operation valve and reversal valve flow-dividing control, cross cylinder, Vertical Cylinders, amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, the control oil circuit that unreels oil cylinder and cutter cylinder are integrated on same hydraulic power unit, it is achieved thereby that regulation in real time and accurate control.
Description
Technical field
The present invention relates to a kind of high-altitude system watt car and its pump hydraulic system.
Background technology
At present, it is generally on the ground that color steel tile is compressing in the factory roof build process of steel construction, by color steel
Watt being lifted using auxiliary equipment to the deck of factory building, then artificial laying installation, color steel tile is easily deformed in hoisting process, and
And efficiency comparison is low.
The A of Chinese patent literature CN 104831877 disclose a kind of high-altitude system watt car, including make watt machine, elevating mechanism, put
Mechanism, mounting seat and moving body are rolled up, mounting seat is that the revolving dial of gyration, system watt can be carried out relative to moving body
Machine is arranged on elevating mechanism, and elevating mechanism and unreeling structure are arranged on revolving dial, and unreeling structure is located at elevating mechanism
Lower section, revolving dial are arranged on moving body.Elevating mechanism includes connecting rod balanced controls and amplitude oil cylinder.
But it is existing system watt car realize mechanism stretch action, luffing action, revolution act, unreel action, balance play and
It is by the relatively independent control of multiple hydraulic systems, the coordinated signals between each hydraulic system are logical again during shear action
Regulator cubicle centralized Control is crossed, thus the shortcomings that control difficulty is big, and fault rate is high be present in existing system watt car.
The content of the invention
It is easy to the pump hydraulic system of control the present invention is intended to provide a kind of, while additionally provides and use the pump hydraulic system
The high-altitude system watt car of system.
In order to solve the above technical problems, the technical scheme of pump hydraulic system is as follows in the present invention：
Pump hydraulic system, including hydraulic oil container and the large discharge pump, the small displacement pump that connect thereon, the rated discharge of large discharge pump
More than the rated discharge of small displacement pump, large discharge pump is connected with operation valve and swivel coupling in turn by the first check valve, operation
The downstream of valve is simultaneously connected to cross cylinder and Vertical Cylinders, and swivel coupling downstream is simultaneously connected to amplitude oil cylinder, telescopic oil cylinder, equilibrium oil
Cylinder, rotary motor, unreel oil cylinder and cutter cylinder, amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreel oil cylinder and
Cutter cylinder is attempted by swivel coupling each via reversal valve；Small displacement pump is confluxed by the second check valve is connected to operation valve
On the large discharge pump oil extraction oil circuit of swivel coupling.
Reversal valve is divided into the shared luffing reversal valve of each amplitude oil cylinder, the flexible reversal valve of telescopic oil cylinder connection, each balance
The shared balance reversal valve of oil cylinder, respectively unreel that oil cylinder shares unreel reversal valve, the revolution balanced valve that rotary motor connects and cut
The cut-out reversal valve of oil-break cylinder connection, luffing reversal valve, flexible reversal valve, balance reversal valve, unreel reversal valve, revolution balanced valve
It is attempted by with cut-out reversal valve on a control oil circuit, controls and be also associated with oil circuit and reversal valve and the overflow valve that connects.
Overflow valve and each reversal valve are magnetic valve, and overflow valve and each reversal valve and are connect.
Operation valve includes the execution operation valve for controlled level oil cylinder and Vertical Cylinders and performs operation valve for controlling
Control operation valve, control operation valve is three six-way valves, and what control operation valve had that order sets is used to control vertical oil
First of cylinder and cross cylinder extending action, it is for large discharge pump to the second of swivel coupling fuel feeding and vertical for controlling
The 3rd of oil cylinder and cross cylinder retract action.
Pneumostome and oil return opening are additionally provided with hydraulic oil container, air filter is provided with pneumostome, is provided with oil return opening
Return filter, the inlet port of large discharge pump and the inlet port of small displacement pump by oil absorption filter are connected to liquid after mutually confluxing
Press oil on case.
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes on Vertical Cylinders
Oil cylinder is stretched or contracted.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balancing on the residing loop of oil cylinder
Valve.
Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with and amplitude oil cylinder in the loop
The connected pipeline explosion-proof valve of rodless cavity.
The balanced valve in loop residing for rotary motor is equalizing and buffering valve.
The technical scheme of high and medium system watt car of the present invention is as follows：
High-altitude system watt car, including car body and the pump hydraulic system that sets thereon, pump hydraulic system include hydraulic oil container and its
Large discharge pump, the small displacement pump of upper connection, the rated discharge of large discharge pump are more than the rated discharge of small displacement pump, and large discharge pump leads to
To cross the first check valve and be connected with operation valve and swivel coupling in turn, the downstream of operation valve is simultaneously connected to cross cylinder and Vertical Cylinders,
Swivel coupling downstream is simultaneously connected to amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreels oil cylinder and cutter cylinder, luffing
Oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, unreel oil cylinder and cutter cylinder and be attempted by revolution each via reversal valve and connect
On head；Small displacement pump is confluxed by the second check valve to be connected on the large discharge pump oil extraction oil circuit of operation valve and swivel coupling.
Reversal valve is divided into the shared luffing reversal valve of each amplitude oil cylinder, the flexible reversal valve of telescopic oil cylinder connection, each balance
The shared balance reversal valve of oil cylinder, respectively unreel that oil cylinder shares unreel reversal valve, the revolution balanced valve that rotary motor connects and cut
The cut-out reversal valve of oil-break cylinder connection, luffing reversal valve, flexible reversal valve, balance reversal valve, unreel reversal valve, revolution balanced valve
It is attempted by with cut-out reversal valve on a control oil circuit, controls and be also associated with oil circuit and reversal valve and the overflow valve that connects.
Overflow valve and each reversal valve are magnetic valve, and overflow valve and each reversal valve and are connect.
Operation valve includes the execution operation valve for controlled level oil cylinder and Vertical Cylinders and performs operation valve for controlling
Control operation valve, control operation valve is three six-way valves, and what control operation valve had that order sets is used to control vertical oil
First of cylinder and cross cylinder extending action, it is for large discharge pump to the second of swivel coupling fuel feeding and vertical for controlling
The 3rd of oil cylinder and cross cylinder retract action.
Pneumostome and oil return opening are additionally provided with hydraulic oil container, air filter is provided with pneumostome, is provided with oil return opening
Return filter, the inlet port of large discharge pump and the inlet port of small displacement pump by oil absorption filter are connected to liquid after mutually confluxing
Press oil on case.
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes on Vertical Cylinders
Oil cylinder is stretched or contracted.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balancing on the residing loop of oil cylinder
Valve.
Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with and amplitude oil cylinder in the loop
The connected pipeline explosion-proof valve of rodless cavity.
The balanced valve in loop residing for rotary motor is equalizing and buffering valve.
The beneficial effects of the invention are as follows：
In a manner of operation valve and reversal valve flow-dividing control, by cross cylinder, Vertical Cylinders, amplitude oil cylinder, telescopic oil cylinder, balance
Oil cylinder, rotary motor, oil cylinder is unreeled and the control oil circuit of cutter cylinder is integrated on same hydraulic power unit, so as to pass through the double pump
The control of hydraulic system, can realize the requirement under the various operating modes of high-altitude system watt car, thus the hydraulic system has and is easy to control
The advantages of processed.Meanwhile increase small displacement pump in hydraulic power unit on the basis of original large discharge pump, so worked in cutter cylinder
When, small displacement pump can be individually used, maloperation problem is on the one hand avoided, on the other hand reduces high-pressure oil pump（That is large discharge pump）
Switching frequency and underrun, so as to extend the service life of equipment, realize regulation in real time and accurate control.
Brief description of the drawings
Fig. 1 is the asphalt principle schematic diagram for the pump hydraulic system that watt machine is made in the present invention.
In figure：Hydraulic oil container 1, oil absorption filter 2, stifled 3, liquid level liquid thermometer 4 of draining the oil, air filter 5, return filter 6, electricity
Motivation 7, plum blossom yielding coupling 8, small displacement pump 9, the second check valve 10, motor 11, plum blossom yielding coupling 12, huge discharge
Pump 13, the first check valve 14, six linking valve group 15, electromagnetic relief valve 16, pressure measuring tie-in 17, pressure gauge 18, Bidirectional balanced valve 19, pipe
Road explosion-proof valve 20, amplitude oil cylinder 21, telescopic oil cylinder 22, balanced valve 23, balancing cylinder 24, unreel oil cylinder 25, equalizing and buffering valve 26,
Rotary motor 27, rotary reducer 28, cut-out oil cylinder 29, solenoid directional control valve 30, solenoid directional control valve 31, one-way throttle valve 32, in
Heart swivel coupling 33, cross cylinder 34, Vertical Cylinders 35, hydraulic lock 36, operation valve 37.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be mutually combined.
The embodiment of high and medium system watt car of the present invention：As described in Figure 1, the high-altitude system watt car includes car body and set thereon
Pump hydraulic system, pump hydraulic system include hydraulic oil container and the large discharge pump, the small displacement pump that connect thereon, large discharge pump
Rated discharge is more than the rated discharge of small displacement pump, and large discharge pump is connected with operation valve in turn by the first check valve and revolution connects
Head, the downstream of operation valve are simultaneously connected to cross cylinder and Vertical Cylinders, swivel coupling downstream and be connected to amplitude oil cylinder, telescopic oil cylinder,
Balancing cylinder, rotary motor, unreel oil cylinder and cutter cylinder；Small displacement pump confluxed by the second check valve be connected to operation valve and
On the large discharge pump oil extraction oil circuit of swivel coupling.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor, oil cylinder and cutter cylinder are unreeled each via reversal valve
It is attempted by swivel coupling, reversal valve is divided into the shared luffing reversal valve of each amplitude oil cylinder, the flexible commutation of telescopic oil cylinder connection
The shared balance reversal valve of valve, each balancing cylinder, respectively unreel that oil cylinder shares unreel reversal valve, the revolution that rotary motor connects is put down
The cut-out reversal valve that weighing apparatus valve connects with cut-out oil cylinder, luffing reversal valve, flexible reversal valve, reversal valve is balanced, reversal valve is unreeled, returns
Turn balanced valve and cut-out reversal valve is attempted by a control oil circuit, control and be also associated with oil circuit and reversal valve and the overflow that connects
Valve.Overflow valve and each reversal valve are magnetic valve, and overflow valve and each reversal valve and are connect.
Operation valve includes the execution operation valve for controlled level oil cylinder and Vertical Cylinders and performs operation valve for controlling
Control operation valve, control operation valve is three six-way valves, and what control operation valve had that order sets is used to control vertical oil
First of cylinder and cross cylinder extending action, it is for large discharge pump to the second of swivel coupling fuel feeding and vertical for controlling
The 3rd of oil cylinder and cross cylinder retract action.
Pneumostome and oil return opening are additionally provided with hydraulic oil container, air filter is provided with pneumostome, is provided with oil return opening
Return filter, the inlet port of large discharge pump and the inlet port of small displacement pump by oil absorption filter are connected to liquid after mutually confluxing
Press oil on case.
Hydraulic lock is installed, hydraulic oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes on Vertical Cylinders
Oil cylinder is stretched or contracted.
Amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, rotary motor and unreel and be mounted on balancing on the residing loop of oil cylinder
Valve.Balanced valve is Bidirectional balanced valve in loop residing for amplitude oil cylinder, and is additionally provided with the loop with amplitude oil cylinder without bar
The connected pipeline explosion-proof valve of chamber.The balanced valve in loop residing for rotary motor is equalizing and buffering valve.
The course of work of hydraulic system：
First, system watt car supporting leg support process：Car body is moved to specified location, makes the edge of vehicle body and factory building almost parallel and has
Certain intervals, connected with the mains to motor, start hydraulic power unit, large discharge pump is started working, operation valve, movable supporting legs are in water
Protruding arrival relevant position, Vertical Cylinders are extended downwardly from the presence of flat oil cylinder, and the leg disc of Vertical Cylinders lower end is pressed in
On sleeper.Such four Vertical Cylinders lift whole vehicle body, complete supporting leg support process.
Support process hydraulic oil flows to：Large discharge pump --- operation valve --- cross cylinder --- Vertical Cylinders.
2nd, watt car lifting mechanism raising process is made：Start hydraulic power unit, small displacement pump is started working, to electromagnetic relief valve
It is powered with solenoid directional control valve（Hydraulic mechanism all the way is only acted every time）, stretch out the amplitude oil cylinder of liquid elevating mechanism, telescopic jib
Rise and rise to certain angle of elevation alpha, rotary motor starts to rotate, and revolving dial action, lifting mechanism and unreeling structure rotate with, and make system
Watt machine goes out a watt direction face factory building, and ready color coil of strip is arranged on and unreeled on device, in the presence of oil cylinder is unreeled, is unreeled
The device that unreels hung on support is moved to correct position, and color coil of strip carries out blowing around device rotation is unreeled, one end of color steel is thrown
Enter system watt machine inlet, balancing cylinder is stretched out, and one end of the system watt machine above connecting rod balanced controls is lifted, it is possible to achieve with level
Face maintains certain angle β, and to adapt to the gradient on factory building top, telescopic oil cylinder stretches out, and telescopic jib elongation, can quickly adjust
The height of watt machine of system, after the height for reaching needs.Have on each oil cylinder or motor of lifting mechanism equipped with balanced valve, Neng Goushi
Now load is kept, load controls and the effect of payload security.
System watt car lifting mechanism action process hydraulic oil flow direction：
Large discharge pump+small displacement pump --- get on the bus control valve group by operation valve --- swivel coupling ---
--- reversal valve --- amplitude oil cylinder
--- reversal valve --- balancing cylinder
--- reversal valve --- rotary motor
--- reversal valve --- unreels oil cylinder
--- reversal valve --- telescopic oil cylinder
3rd, tile press pressure watt cutting-off process：Start system watt machine, realize pressure watt function, press watt length, set in advance according to demand,
Color steel tile goes out to after setting length, and electromagnetic relief valve and solenoid directional control valve are powered under PLC control, cuts off cylinder action, band
Dynamic cutting knife work, cuts off color steel tile, completes one and go out a watt working cycles.
Tile press pressure watt cutting-off process hydraulic oil flow direction：
Small displacement pump --- operation valve --- centre revolving joint --- control valve group of getting on the bus --- reversal valve --- cutter cylinder.
4th, vehicle withdraws process：Tile press is completed after pressure bricklayer is made to rise, it is necessary to withdraw system watt car lifting mechanism, makes watt car
Process and its raising process below lifting mechanism be not on the contrary, repeating.System watt car supporting leg withdraws process and also supports process phase with it
Instead, also do not repeating.
Whole tile press is in action process, and getting off, it is manually operated to use, and can very easily control whole system watt car
Whether supporting speed and supporting rear vehicle balance.By setting hydraulic lock on Vertical Cylinders, can effectively prevent because of pipeline
The accident such as inclination of vehicle rollover caused by reason such as leakage.By using centre revolving joint, system watt can be very easily linked up
The hydraulic circuit and circuit that car is got off and got on the bus, make to get on or off the bus part independently of each other, getting on the bus will not be with hair of getting off in revolution
Raw any interference.Unreeling structure, balanced controls, telescoping mechanism and slew gear hydraulic system on be all provided with bidirectional throttling valve
And balanced valve, stationarity when responsiveness and the holding action of each mechanism can easily be adjusted.Employed on luffing loop
Choke valve adds balanced valve to add being applied in combination for pipeline explosion-proof valve, realize the responsiveness control of two oil cylinders, two oil cylinders it is same
Oil cylinder position lock function after the control of step property and each conduit failure, it is therefore prevented that the generation of dangerous accident.System watt car is being grasped
By electrical equipment control during work, in system watt car lifting mechanism raising process, only large discharge pump can carry out fuel feeding work,
Small displacement pump can not work.In tile press pressure watt cutting-off process, only small displacement pump energy fuel feeding works, and large discharge pump is unable to work
Make.Interlocked by such operation, the maloperation of operating personnel can be prevented.So design, in lifting mechanism raising process
It is operated using large discharge pump, in tile press pressure watt cutting-off process, small displacement pump work, power saving can be saved, save energy
Source, while reduce system heat generation.When canine tooth wheel pump or little gear pump break down, switched by electrical appliance button, release big row
The interlocking of pump and small displacement pump is measured, large discharge pump replaces small displacement pump work or small displacement pump to replace large discharge pump temporarily temporarily
Work, for troubleshooting of meeting an urgent need.Large discharge pump is to be used for supporting leg work of getting off, and the pressure watt that simultaneously can be used for dress is mutually shut down
Structure acts work；Small displacement pump is by check valve, collaborates upward tile press structure with large discharge pump and works；When cutter cylinder works
When, or during the fine setting of other mechanisms, using small displacement pump work；When large discharge pump breaks down, small displacement pump is as emergency pump
Use, the operating mechanism in addition to supporting leg is driven.
The embodiment of pump hydraulic system in the present invention：The structure and above-described embodiment of pump hydraulic system in the present embodiment
The structure of middle pump hydraulic system is identical, therefore repeats no more.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. pump hydraulic system, it is characterised in that large discharge pump, the small displacement pump connected including hydraulic oil container and thereon, big row
Measure pump rated discharge be more than small displacement pump rated discharge, large discharge pump by the first check valve be connected with turn operation valve and
Swivel coupling, the downstream of operation valve are simultaneously connected to cross cylinder and Vertical Cylinders, and swivel coupling downstream is simultaneously connected to amplitude oil cylinder, stretched
Oil cylinder, balancing cylinder, rotary motor, unreel oil cylinder and cutter cylinder, amplitude oil cylinder, telescopic oil cylinder, balancing cylinder, revolution horse
Reach, unreel oil cylinder and cutter cylinder is attempted by swivel coupling each via reversal valve；Small displacement pump is converged by the second check valve
Stream is connected on the large discharge pump oil extraction oil circuit of operation valve and swivel coupling.
2. pump hydraulic system according to claim 1, it is characterised in that reversal valve is divided into the shared change of each amplitude oil cylinder
The shared balance reversal valve of width reversal valve, the flexible reversal valve of telescopic oil cylinder connection, each balancing cylinder, respectively unreel what oil cylinder shared
Unreel reversal valve, the cut-out reversal valve that the revolution balanced valve of rotary motor connection connects with cut-out oil cylinder, luffing reversal valve, stretch
Reversal valve, balance reversal valve, unreel reversal valve, revolution balanced valve and cut-out reversal valve be attempted by a control oil circuit, control oil
It is also associated with road and reversal valve and the overflow valve that connects.
3. pump hydraulic system according to claim 2, it is characterised in that overflow valve and each reversal valve are magnetic valve,
And overflow valve and each reversal valve simultaneously connect.
4. pump hydraulic system according to claim 1, it is characterised in that operation valve include be used for controlled level oil cylinder and
The execution operation valve of Vertical Cylinders and the control operation valve that operation valve is performed for controlling, control operation valve is three six-way valves
Door, control operation valve have first for controlling Vertical Cylinders and cross cylinder extending action of order setting, for big row
Measure the 3rd of pump to the second of swivel coupling fuel feeding and for controlling Vertical Cylinders and cross cylinder retract action.
5. pump hydraulic system according to claim 1, it is characterised in that pneumostome is additionally provided with hydraulic oil container and is returned
Hydraulic fluid port, air filter is provided with pneumostome, return filter, the inlet port and small displacement pump of large discharge pump are provided with oil return opening
Inlet port mutually conflux after be connected to by oil absorption filter on hydraulic oil container.
6. pump hydraulic system according to claim 1, it is characterised in that hydraulic lock, hydraulic pressure are provided with Vertical Cylinders
Oil enters the big chamber of Vertical Cylinders or small chamber by hydraulic lock, realizes stretching or contracting for oil cylinder.
7. pump hydraulic system as claimed in any of claims 1 to 6, it is characterised in that amplitude oil cylinder, flexible oil
Cylinder, balancing cylinder, rotary motor and unreel and be mounted on balanced valve on the residing loop of oil cylinder.
8. pump hydraulic system according to claim 7, it is characterised in that balanced valve is double in loop residing for amplitude oil cylinder
The pipeline explosion-proof valve being connected with the rodless cavity of amplitude oil cylinder is additionally provided with to balanced valve, and in the loop.
9. pump hydraulic system according to claim 7, it is characterised in that the balanced valve in loop residing for rotary motor is flat
Weigh trimmer valve.
10. high-altitude system watt car, including the double pump liquid in car body and the claims 1 to 9 that set thereon described in any one
Pressure system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450373.2A CN107435666A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its pump hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450373.2A CN107435666A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its pump hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107435666A true CN107435666A (en) | 2017-12-05 |
Family
ID=60458620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450373.2A Pending CN107435666A (en) | 2017-06-15 | 2017-06-15 | High-altitude system watt car and its pump hydraulic system |
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| Country | Link |
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| CN (1) | CN107435666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
| CN110513347A (en) * | 2019-09-24 | 2019-11-29 | 常州液压成套设备厂有限公司 | A kind of one station hydraulic system of multimachine |
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| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN203558743U (en) * | 2013-06-05 | 2014-04-23 | 长沙桑尼重工机械有限公司 | Intelligent remote control lorry-mounted crane |
| CN106122157A (en) * | 2016-08-31 | 2016-11-16 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
| CN206830557U (en) * | 2017-06-15 | 2018-01-02 | 河南卫华特种车辆有限公司 | A kind of high-altitude system watt car and its pump hydraulic system |
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2017
- 2017-06-15 CN CN201710450373.2A patent/CN107435666A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202249846U (en) * | 2011-10-13 | 2012-05-30 | 中国石油天然气股份有限公司 | Hydraulic control system for continuous pipe snubbing unit |
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN203558743U (en) * | 2013-06-05 | 2014-04-23 | 长沙桑尼重工机械有限公司 | Intelligent remote control lorry-mounted crane |
| CN106122157A (en) * | 2016-08-31 | 2016-11-16 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of the high-altitude operation vehicle of ratio throttle grverning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
| CN108332047B (en) * | 2017-12-28 | 2023-09-19 | 天津良华新能源科技股份有限公司 | Hydraulic substation |
| CN110513347A (en) * | 2019-09-24 | 2019-11-29 | 常州液压成套设备厂有限公司 | A kind of one station hydraulic system of multimachine |
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