CN108506256A - Drive hydraulic control system - Google Patents
Drive hydraulic control system Download PDFInfo
- Publication number
- CN108506256A CN108506256A CN201810255174.0A CN201810255174A CN108506256A CN 108506256 A CN108506256 A CN 108506256A CN 201810255174 A CN201810255174 A CN 201810255174A CN 108506256 A CN108506256 A CN 108506256A
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- CN
- China
- Prior art keywords
- motor
- fluid port
- hydraulic fluid
- valve
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of driving hydraulic control systems, the gear pump being connected to including fuel tank and with fuel tank, the gear pump is connected on plunger pump, the plunger pump passes through motor driven gear pump rotation imbibition pressure oil from fuel tank, a hydraulic oil part for the suction of the gear pump enters motor brake to open motor brake by solenoid directional control valve, another part by after electric proportional reversing valve enter swash plate with drive swash plate work make plunger pump generate hydraulic oil enter after motor be back to again plunger pump make motor rotate forward or reversion, motor brake work locking motor after the solenoid directional control valve and electric proportional reversing valve power-off.By the above-mentioned means, the present invention drives hydraulic control system, it is capable of providing bigger power, driving load bigger, simple in structure, security performance is high.
Description
Technical field
The present invention relates to hydraulic system fields, more particularly to a kind of driving hydraulic control system of environmental protection equipment.
Background technology
Building waste includes mainly architecture sediment, useless brick, useless watt, the mortar and concrete that are scattered, and in addition there are a small amount of
Steel, timber, glass, plastics, various packaging materials etc..Current general processing mode is to transport it into specified ground to click through
Row concentrates landfill.Many people recognize the pollution hidden trouble of garbage loading embeading, but few people really see the valence of garbage disposal
It is worth space.As can building waste is carried out the processing regeneration construction timbers such as brick or concrete, it can be used to what replacement was increasingly reduced
Stone ore resource greatly reduces the exploitation in the mine of increasingly depleted.
Requirement of the domestic fixed Crushing Station to place is very high, the haul of centralization charging, haul distance and ramp height
Usually increase with mine development.Since it is desired that automobile quantity it is directly related to averge distance carried, circulation time increase, then need
More automobiles are wanted, just can guarantee and be normally fed to crusher.Ramp height increases, automobile up slope transport capacity and operation speed
Degree is then restricted.Large power supply, transformation station are built, and infrastructure cost input is big, and power supply supply and substation's facility go out
Existing failure problems have had more the high disadvantage of the cost inputs such as maintenance cost, low during discharging efficiency is universal.Environmental protection equipment drives hydraulic pressure
Control system is mainly used for driving the walking of building waste movable crusher.Building waste movable crusher is carried out to building waste
The main broken equipment of " turning waste into wealth ", recycling, it is feasible to sail to the progress of material location because the equipment can move
A whole set of broken, screening processing, so the building waste mobile crushing station that is otherwise known as.
Invention content
The invention mainly solves the technical problem of providing a kind of driving hydraulic control systems, are capable of providing bigger power,
Driving load bigger, simple in structure, security performance is high.
In order to solve the above technical problems, one aspect of the present invention is：A kind of driving hydraulic control system is provided
System, including fuel tank and the gear pump that is connected to fuel tank, the gear pump are connected on plunger pump, and the plunger pump passes through motor band
The rotation of moving teeth wheel pump imbibition pressure oil, hydraulic oil part of the suction of the gear pump from fuel tank are entered by solenoid directional control valve
For motor brake to open motor brake, another part drives swash plate work to make by entering swash plate after electric proportional reversing valve
Plunger pump generate hydraulic oil enter after motor be back to again plunger pump make motor rotate forward or reversion, the solenoid directional control valve and
Motor brake work locking motor after electric proportional reversing valve power-off.
In a preferred embodiment of the present invention, after the hydraulic oil of the gear pump enters the hydraulic fluid port P of electric proportional reversing valve
The left position that swash plate is flowed out to from hydraulic fluid port B drives plunger pump, and the hydraulic oil that plunger pump generates is flowed out by the first hydraulic fluid port, into motor
Hydraulic fluid port A1 after the second hydraulic fluid port of plunger pump is back to from the hydraulic fluid port B1 of motor, so that motor is rotated forward.
In a preferred embodiment of the present invention, after the hydraulic oil of the gear pump enters the hydraulic fluid port P of electric proportional reversing valve
The right position that swash plate is flowed out to from hydraulic fluid port A drives plunger pump, and the hydraulic oil that plunger pump generates is flowed out by the second hydraulic fluid port, into motor
Hydraulic fluid port B1 after the first hydraulic fluid port of plunger pump is back to from the hydraulic fluid port A1 of motor, so that motor is inverted.
In a preferred embodiment of the present invention, it is connected with flushing valve between the hydraulic fluid port A1 and hydraulic fluid port B1 of the motor, institute
The pressure oil for stating the side that pressure is high between hydraulic fluid port A1 and hydraulic fluid port B1 is commutated by flushing valve, and the pressure oil of the low side of pressure is logical
It crosses flushing valve and flows into fuel tank, and pressure oil is delivered to the low side of pressure by gear pump, is cooled down to motor.
In a preferred embodiment of the present invention, the hydraulic oil of gear pump is single by first when the pressure of the hydraulic fluid port A1 is low
Hydraulic oil is delivered to the hydraulic fluid port A1 of motor to valve, hydraulic oil is delivered to by horse by the second check valve when the pressure of hydraulic fluid port B1 is low
The hydraulic fluid port B1 reached.
In a preferred embodiment of the present invention, the first overflow valve is also associated between the gear pump and the first check valve
With third check valve, the second overflow valve and the 4th check valve are connected between the gear pump and the second check valve.
In a preferred embodiment of the present invention, third overflow valve is connected between the flushing valve and fuel tank.
In a preferred embodiment of the present invention, the outlet of the gear pump is equipped with filter, is gone back on the gear pump
Equipped with the 4th overflow valve for controlling gear pump output pressure.
The beneficial effects of the invention are as follows：The present invention drives hydraulic control system, is capable of providing bigger power, driving load is more
Greatly, simple in structure, security performance is high.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the hydraulic principle structural schematic diagram of one preferred embodiment of driving hydraulic control system of environmental protection equipment of the present invention；
The label of each component is as follows in attached drawing：1, fuel tank, 2, motor, 3, plunger pump, 4, gear pump, 5, solenoid directional control valve, 6, horse
Up to brake, 7, electric proportional reversing valve, 8, swash plate, 9, motor, 10, flushing valve, the 11, first check valve, the 12, second check valve,
13, the first overflow valve, 14, third check valve, the 15, second overflow valve, the 16, the 4th check valve, 17, third overflow valve, 18, filtering
Device, the 19, the 4th overflow valve, 20, running gear, the 31, first hydraulic fluid port, the 32, second hydraulic fluid port.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a kind of driving hydraulic control system, including fuel tank 1 and the gear pump 4 that is connected to fuel tank 1, gear pump
4 are connected on plunger pump 3, and plunger pump 3 drives gear pump 4 to rotate imbibition pressure oil, the suction of gear pump 4 from fuel tank 1 by motor 2
The hydraulic oil part gone out enters motor brake 6 to open motor brake 6 by solenoid directional control valve 5, and another part passes through
Enter after electric proportional reversing valve 7 after the hydraulic oil that swash plate 8 makes plunger pump 3 generate to drive swash plate 8 to work enters motor 9 and flows back again
Motor 9 is set to rotate forward or invert to plunger pump 3, motor brake 6 works after solenoid directional control valve 5 and the electric power-off of proportional reversing valve 7
Lock motor 9.
In addition, the hydraulic oil of gear pump 4 enters after the hydraulic fluid port P of electric proportional reversing valve 7 left side for flowing out to swash plate 8 from hydraulic fluid port B
Position driving plunger pump 3, the hydraulic oil that plunger pump 3 generates is flowed out by the first hydraulic fluid port 31, into the hydraulic fluid port A1 of motor 9 after from motor
9 hydraulic fluid port B1 is back to the second hydraulic fluid port 32 of plunger pump 3, and motor 9 is made to rotate forward.
In addition, the hydraulic oil of gear pump 4 enters after the hydraulic fluid port P of electric proportional reversing valve 7 right side for flowing out to swash plate 8 from hydraulic fluid port A
Position driving plunger pump 3, the hydraulic oil that plunger pump 3 generates is flowed out by the second hydraulic fluid port 32, into the hydraulic fluid port B1 of motor 9 after from motor
9 hydraulic fluid port A1 is back to the first hydraulic fluid port 31 of plunger pump 3, and motor 9 is made to invert.
In addition, being connected with flushing valve 10 between the hydraulic fluid port A1 and hydraulic fluid port B1 of motor 9, pressure is high between hydraulic fluid port A1 and hydraulic fluid port B1
The pressure oil of side commutated by flushing valve 10, the pressure oil of the low side of pressure flows into fuel tank 1 by flushing valve 10, and
Pressure oil is delivered to the low side of pressure by gear pump 3, is cooled down to motor 9.
In addition, hydraulic oil is delivered to horse by the hydraulic oil of gear pump 4 by the first check valve 11 when the pressure of hydraulic fluid port A1 is low
Up to 9 hydraulic fluid port A1, hydraulic oil is delivered to the hydraulic fluid port B1 of motor 9 by the second check valve 12 when the pressure of hydraulic fluid port B1 is low.
In addition, being also associated with the first overflow valve 13 and third check valve 14, gear between gear pump 4 and the first check valve 11
It is connected with the second overflow valve 15 and the 4th check valve 16 between pump 4 and the second check valve 12.
In addition, being connected with third overflow valve 17 between flushing valve 10 and fuel tank 1.
In addition, the outlet of gear pump 4 is equipped with filter 18, filter 18 ensure that the cleannes of system, extend and set
Standby service life reduces the probability to break down.For controlling 4 output pressure of gear pump is additionally provided on gear pump 4
Four overflow valves 19, while the 4th overflow valve 19 can play a protective role to gear pump as safety valve again.
The driving hydraulic control system of environmental protection equipment drives the gear pump 4 of plunger pump 3 and string in its tail portion to revolve by motor 2
Turn, gear pump 1 enters filter 18, subsequently enter electric ratio from the S1 mouth oil suctions of fuel tank, the P mouths generation high pressure oil of gear pump 4
The P mouths of reversal valve 7, electromagnet YV1 and YV3 by controlling electric proportional reversing valve 7 obtain electric, and 4 high pressure oil of gear pump passes through electromagnetism
Reversal valve 2 enters SC mouthfuls, motor brake 6 is opened, while hydraulic oil is flowed out from the B mouths of electric proportional reversing valve 7, into swash plate 5
Left position, drive plunger pump 3 the first hydraulic fluid port 31, plunger pump 3 generate high pressure oil flowed out from the first hydraulic fluid port, into the oil of motor 9
The hydraulic fluid port B1 hydraulic oil of mouth A1, motor 9 subsequently enter the second hydraulic fluid port sucking of plunger pump 2, to which drive motor 9 rotates forward, drive
Running gear 20 moves ahead；Electromagnet YV2 and YV3 by controlling electric proportional reversing valve 7 obtain electric, and 4 high pressure oil of gear pump passes through electricity
Magnetic reversal valve 5 enters SC mouthfuls, opens motor brake 6, while the hydraulic oil of gear pump 4 is flowed from the hydraulic fluid port A of electric proportional reversing valve 7
Go out to enter the right position of swash plate 5, the second hydraulic fluid port of plunger pump 3, plunger pump 3 is driven to generate high pressure oil and flowed out from the second hydraulic fluid port, entered
The hydraulic oil of the hydraulic fluid port B1 of motor 9, the hydraulic fluid port A1 of motor 9 subsequently enter the first hydraulic fluid port of plunger pump 3, to which drive motor 9 is anti-
Turn, running gear 20 is driven to retreat；The filter 18 that wherein gear pump 4 exports ensure that the cleannes of system, extend equipment
Service life reduces the probability to break down；4th overflow valve 19 is mainly used for controlling the pressure output control of gear pump 4,
It plays as safety valve and is played a protective role to gear pump 4 again simultaneously.
Electromagnet YV1 and YV2 are powered off when walking or retrogressing, while YV3 is also powered off, motor brake 6 is in spring
It starts to work under the action of power, locks motor 9, start parking.And since system is closed system, there are higher temperatures in system
The hydraulic oil of degree, the hydraulic fluid port A1 and hydraulic fluid port B1 pressure of motor 9 are by comparing pressure, and the pressure oil of upper side is by driving flushing valve
10 commutations bring deep fat into fuel tank 1 to make relatively low lateral pressure oil enter L1 mouthfuls by flushing valve 10 and third overflow valve 17, with
This pressure oil that gear pump 3 generates simultaneously passes through X mouthfuls, and it is low to enter motor 9 by the first check valve 11 or the second check valve 12
Side is pressed, provides temperature lower hydraulic oil for system, finally plays cooling effect.
When loading larger during traveling or retrogressing, in closed circuit the pressure oil of upper side by Z mouthfuls, second
Overflow valve 15 and the 4th check valve 16 and the second check valve 2 enter the pressure oil of upper side in B mouthfuls of low-pressure side or closed circuit
Enter A mouthfuls of low-pressure side by Y mouthfuls, the first overflow valve 13, third check valve 14 and the first check valve 11, plays pressure protection work
With ensure that the safety of system.
It is different from the prior art, it is liquid that the hydraulic control system of environmental protection equipment driving of the present invention drives plunger pump by motor
Pressure motor provides power, driving load bigger；Using series connection gear pump, being integrated with flushing valve solves oil temperature in system again simultaneously
Excessively high problem, and with pressure protecting function when loading larger；Using brake fluid system, safety higher ensure that and drive
The safety for the person of sailing.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of driving hydraulic control system, which is characterized in that the gear pump being connected to including fuel tank and with fuel tank, the gear pump
It is connected on plunger pump, the plunger pump rotates the imbibition pressure oil from fuel tank by motor driven gear pump, the gear pump
A hydraulic oil part for suction enters motor brake to open motor brake by solenoid directional control valve, and another part passes through electricity
Enter after proportional reversing valve after the hydraulic oil that swash plate makes plunger pump generate to drive swash plate to work enters motor and is back to plunger again
Pump makes motor rotate forward or invert, and the solenoid directional control valve locks horse with motor brake work after electric proportional reversing valve power-off
It reaches.
2. driving hydraulic control system according to claim 1, which is characterized in that the hydraulic oil of the gear pump enters electricity
The left position for flowing out to swash plate after the hydraulic fluid port P of proportional reversing valve from hydraulic fluid port B drives plunger pump, the hydraulic oil that plunger pump generates to pass through the
One hydraulic fluid port flows out, into the hydraulic fluid port A1 of motor after the second hydraulic fluid port of plunger pump is back to from the hydraulic fluid port B1 of motor, so that motor is rotated forward.
3. driving hydraulic control system according to claim 1, which is characterized in that the hydraulic oil of the gear pump enters electricity
The right position for flowing out to swash plate after the hydraulic fluid port P of proportional reversing valve from hydraulic fluid port A drives plunger pump, the hydraulic oil that plunger pump generates to pass through the
Two hydraulic fluid ports flow out, into the hydraulic fluid port B1 of motor after the first hydraulic fluid port of plunger pump is back to from the hydraulic fluid port A1 of motor, so that motor is inverted.
4. driving hydraulic control system according to claim 2 or 3, which is characterized in that the hydraulic fluid port A1 and oil of the motor
It is connected with flushing valve between mouth B1, the pressure oil of the high side of pressure is changed by flushing valve between the hydraulic fluid port A1 and hydraulic fluid port B1
To the pressure oil of the low side of pressure flows into fuel tank by flushing valve, and pressure oil is delivered to low one of pressure by gear pump
Side cools down motor.
5. driving hydraulic control system according to claim 4, which is characterized in that the gear when pressure of the hydraulic fluid port A1 is low
Hydraulic oil is delivered to the hydraulic fluid port A1 of motor by the first check valve by the hydraulic oil of pump, single by second when the pressure of hydraulic fluid port B1 is low
Hydraulic oil is delivered to the hydraulic fluid port B1 of motor to valve.
6. driving hydraulic control system according to claim 5, which is characterized in that the gear pump and the first check valve it
Between be also associated with the first overflow valve and third check valve, be connected between the gear pump and the second check valve the second overflow valve and
4th check valve.
7. driving hydraulic control system according to claim 4, which is characterized in that connected between the flushing valve and fuel tank
There is third overflow valve.
8. according to any driving hydraulic control system of claim 1-3,5-7, which is characterized in that the gear pump goes out
Mouth is equipped with filter, and the 4th overflow valve for controlling gear pump output pressure is additionally provided on the gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255174.0A CN108506256A (en) | 2018-03-27 | 2018-03-27 | Drive hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255174.0A CN108506256A (en) | 2018-03-27 | 2018-03-27 | Drive hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108506256A true CN108506256A (en) | 2018-09-07 |
Family
ID=63378609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810255174.0A Pending CN108506256A (en) | 2018-03-27 | 2018-03-27 | Drive hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108506256A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635966A (en) * | 2021-09-06 | 2021-11-12 | 中国铁建重工集团股份有限公司 | Four-wheel drive slip steering chassis hydraulic control system |
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| CN105946830A (en) * | 2016-05-27 | 2016-09-21 | 湖南三路面机械有限公司 | Hydraulic brake system and engineering vehicle |
| CN106640796A (en) * | 2016-10-12 | 2017-05-10 | 哈尔滨第机械集团有限公司 | Hydraulic transmission system for fan of tracked armored vehicle |
| CN106900234A (en) * | 2017-04-07 | 2017-06-30 | 农业部南京农业机械化研究所 | A kind of drive system of rice transplanter |
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2018
- 2018-03-27 CN CN201810255174.0A patent/CN108506256A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000213347A (en) * | 1999-01-21 | 2000-08-02 | Nissan Diesel Motor Co Ltd | Hydraulic drive cooling fan device |
| US20020027025A1 (en) * | 2000-09-06 | 2002-03-07 | Komatsu Ltd. | Steering-wheel revolution number correction system of all- wheel-drive vehicle |
| CN102556153A (en) * | 2011-12-31 | 2012-07-11 | 上海电气液压气动有限公司 | Steering hydraulic drive system for vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635966A (en) * | 2021-09-06 | 2021-11-12 | 中国铁建重工集团股份有限公司 | Four-wheel drive slip steering chassis hydraulic control system |
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Application publication date: 20180907 |