CN107013526B - Filter press hydraulic control circuit - Google Patents
Filter press hydraulic control circuit Download PDFInfo
- Publication number
- CN107013526B CN107013526B CN201710365593.5A CN201710365593A CN107013526B CN 107013526 B CN107013526 B CN 107013526B CN 201710365593 A CN201710365593 A CN 201710365593A CN 107013526 B CN107013526 B CN 107013526B
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- Prior art keywords
- hydraulic
- valve
- oil
- plywood
- electro
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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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
-
- 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
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B13/027—Check valves
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses filter press hydraulic control circuits, it includes oil supply structure, the double pressure two-flow hydraulic pumps being connected to oil supply structure, electro-hydraulic reversing valve between double pressure two-flow hydraulic pumps and plywood oil cylinder, check valve between double pressure two-flow hydraulic pumps and electro-hydraulic reversing valve, hydraulic control one-way valve between electro-hydraulic reversing valve and the rodless cavity of plywood oil cylinder, regeneration check valve between the rod chamber and electro-hydraulic reversing valve of plywood oil cylinder, the balanced valve being connected between the rod chamber and electro-hydraulic reversing valve of plywood oil cylinder, and the drainback passage being connected to electro-hydraulic reversing valve；By the way that the electro-hydraulic reversing valve, the regeneration check valve, the balanced valve and the hydraulic control one-way valve is arranged, so that hydraulic oil is reused during the plywood of the filter press, it substantially increases the plywood efficiency of plywood oil cylinder on the basis of not improving the output displacement of oil supply structure.
Description
Technical field
The present invention relates to filter press fields, specifically, being related to a kind of filter press hydraulic control circuit.
Background technique
Filter press is a kind of common solid-liquid separating equipment, is just applied to Chemical Manufacture in 18 beginnings of the century, so far still extensively
Applied to industries such as chemical industry, pharmacy, metallurgy, dyestuff, food, brewing, ceramics and environmental protection；In other words using a kind of special
Filter medium applies certain pressure to object, so that a kind of mechanical equipment that liquid dialysis comes out；Filter press makes in mixed liquor
Solids extract come out, realize the effect of solid and liquid separation.
The structure of filter press consists of three parts, first part: rack, and rack is the basic components of filter press, and both ends are
The crossbeam of thrust plate and hold-down head, two sides connects the two, and crossbeam is to support filter plate, filter frame and pressure plate；Second
Point: hold-down mechanism；Part III: filter mechanism, filter mechanism are made of filter plate, filter frame, filter cloth, squeeze diaphragm, and material passes through
Feeding structure enters each filter chamber, and solid particle is filtered because the aperture that its partial size is greater than filter medium (filter cloth) is trapped in filter chamber
Liquid is then from the fluid hole outflow below filter plate.
Wherein, the speed of filter press plywood cylinder action directly affects the cycle time of filter press, in order to improve filter press
Production efficiency, traditional filter press hydraulic control circuit is had to the discharge capacity for improving hydraulic pump, hydraulic even with invariable power
Pump can consume very big electric energy while increasing pumpage.
For this purpose, now providing one kind can be not necessarily to improve hydraulic pump discharge and the voltage-controlled system of filter press plywood rate can be improved
Circuit.
Summary of the invention
For this purpose, the present invention provides a kind of long service life and the low filter press hydraulic control circuit of use cost.
In order to solve the above technical problems, the present invention provides a kind of filter press hydraulic control circuits comprising oil supply structure,
The double pressure two-flow hydraulic pumps being connected to the oil supply structure, between double pressure two-flow hydraulic pumps and plywood oil cylinder
Electro-hydraulic reversing valve, the check valve between double pressure two-flow hydraulic pumps and the electro-hydraulic reversing valve, is set to described electro-hydraulic
Hydraulic control one-way valve between reversal valve and the rodless cavity of plywood oil cylinder, the rod chamber set on the plywood oil cylinder electro-hydraulic are changed with described
To the regeneration check valve between valve, the balanced valve being connected between the rod chamber and the electro-hydraulic reversing valve of the plywood oil cylinder,
And the drainback passage being connected to the electro-hydraulic reversing valve；
Wherein, when filter press is closed filter plate, the oil supply structure work makes hydraulic oil enter double pressure two-flow liquid
The outlet oil pressure of press pump, double pressure two-flow hydraulic pumps is low, and the stroking mechanism in double pressure two-flow hydraulic pumps will be described
The discharge capacities of double pressure two-flow hydraulic pumps are arranged to maximum value, and hydraulic oil is through the check valve by the P mouth of the electro-hydraulic reversing valve into B
Mouth enters in the rodless cavity of the plywood oil cylinder after going out after the hydraulic control one-way valve, and pushes the plywood oil cylinder by the nothing
Rod cavity constantly to the rod chamber slide, so that the plywood oil cylinder is quickly stretched out piston rod, the hydraulic oil in the rod chamber by
Continue to press on the piston of the plywood oil cylinder after the regeneration check valve into B mouthfuls by the P mouth of the electro-hydraulic reversing valve again
Bar stretches out；After the filter plate of filter press is closed completely, the outlet oil pressure of double pressure two-flow hydraulic pumps is raised to above
The low pressure setting value of double pressure two-flow hydraulic pumps, described pair is pressed the stroking mechanisms of two-flow hydraulic pumps by double pressures
The discharge capacity of two-flow hydraulic pump is arranged to minimum value, and hydraulic oil is gone out by the P mouth of the electro-hydraulic reversing valve into B mouthfuls through the check valve
By entering in the rodless cavity of the plywood oil cylinder after the hydraulic control one-way valve, hydraulic pressure at the B mouth of the electro-hydraulic reversing valve
Power conducts to the balanced valve inside and opens balanced valve, and the hydraulic oil in the rodless cavity of the plywood oil cylinder is through the balanced valve
Enter drainback passage after being gone out afterwards by the A mouth of the voltage commutation valve into T mouthfuls.
It further include the electromagnetism unloading overflow valve that one end is connected to the check valve, the other end is connected to the drainback passage,
When filter press needs plywood, the electromagnetism unloading overflow valve is in an off state, and hydraulic oil enters institute after the check valve
State electro-hydraulic reversing valve；When filter press is not necessarily to plywood, the electromagnetism unloading overflow valve is in closed state, and hydraulic oil is by the list
Directly enter the drainback passage through the electromagnetism unloading overflow valve after to valve.
It further include the safe relief circuit between the rodless cavity and the drainback passage of the plywood oil cylinder.
Safe relief circuit includes the safety overflow valve being arranged between the hydraulic control one-way valve and the drainback passage, with
And one-way throttle valve and Solenoid ball valve with the safety overflow valve parallel connection.
The oil supply structure includes that the hydraulic oil in hydraulic oil container and the driving hydraulic oil container enters double pressures pair
The Oil pump electrical machinery of flow hydraulic pump.
The fuel-displaced place of the hydraulic oil container is additionally provided with oil absorption filter.
The tail end of the drainback passage is connected to the hydraulic oil container, is additionally provided with return filter on the drainback passage.
The above technical solution of the present invention has the following advantages over the prior art:
In the present invention, by the way that the electro-hydraulic reversing valve, the regeneration check valve, the balanced valve and the hydraulic control is arranged
Check valve is not improving the defeated of oil supply structure so that hydraulic oil is reused during the plywood of the filter press
Out on the basis of discharge capacity, the plywood efficiency of plywood oil cylinder is substantially increased.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is filter press hydraulic control circuit schematic diagram of the present invention；
Description of symbols: 1- hydraulic oil container；2- oil absorption filter；3- Oil pump electrical machinery；The bis- pressure two-flow hydraulic pumps of 4-；5-
Check valve；6- electromagnetism unloading overflow valve；7- regenerates check valve；8- electro-hydraulic reversing valve；9- balanced valve；10- hydraulic control one-way valve；11-
Plywood oil cylinder；12- one-way throttle valve；13- Solenoid ball valve；14- safety overflow valve；15- return filter；16- piston rod；17-
Rod chamber；18- rodless cavity.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As shown in Figure 1, the filter press hydraulic control circuit of the present embodiment comprising oil supply structure, with the oil supply structure
Double pressure two-flow hydraulic pumps 4 of connection, the electro-hydraulic reversing valve between double pressure two-flow hydraulic pumps 4 and plywood oil cylinder 11
8, the check valve 5 between double pressure two-flow hydraulic pumps 4 and the electro-hydraulic reversing valve 8 is set to the electro-hydraulic reversing valve 8
Hydraulic control one-way valve 10 between the rodless cavity 18 of plywood oil cylinder 11, set on the rod chamber 17 and the electricity of the plywood oil cylinder 11
Regeneration check valve 7 between liquid reversal valve 8, be connected to the plywood oil cylinder 11 rod chamber 17 and the electro-hydraulic reversing valve 8 it
Between balanced valve 9, and the drainback passage being connected to the electro-hydraulic reversing valve；
Wherein, when filter press is closed filter plate, the oil supply structure work makes hydraulic oil enter double pressure two-flow liquid
The outlet oil pressures of press pump 4, double pressure two-flow hydraulic pumps 4 are low, and the stroking mechanisms in double pressure two-flow hydraulic pumps 4 are by institute
The discharge capacity for stating double pressure two-flow hydraulic pumps 4 is arranged to maximum value, and hydraulic oil is through the check valve 5 by the P of the electro-hydraulic reversing valve 8
Mouth enters in the rodless cavity 18 of the plywood oil cylinder 11 after going out into B mouthfuls after the hydraulic control one-way valve 10, and pushes the plywood
Oil cylinder 11 is constantly slided to the rod chamber 17 from the rodless cavity 18, and the plywood oil cylinder 11 is made quickly to stretch out piston rod 16,
Hydraulic oil in the rod chamber 17 by the P mouth of the electro-hydraulic reversing valve 8 into B mouthfuls by being continued again after the regeneration check valve 7
The piston rod 16 of the plywood oil cylinder 11 is pushed to stretch out；After the filter plate of filter press is closed completely, double pressures are double
The outlet oil pressure of flow hydraulic pump 4 raises to above the low pressure setting value of double pressure two-flow hydraulic pumps 4, double pressures
The discharge capacities of double pressure two-flow hydraulic pumps 4 are arranged to minimum value the stroking mechanism of two-flow hydraulic pump 4, described in hydraulic oil warp
Check valve 5 enters the plywood oil cylinder 11 after being gone out by the P mouth of the electro-hydraulic reversing valve 8 into B mouthfuls after the hydraulic control one-way valve 10
Rodless cavity 18 in, the hydraulic pressure at the B mouth of the electro-hydraulic reversing valve 8 conducts to 9 inside of the balanced valve and opens balance
Valve 9, hydraulic oil in the rodless cavity 18 of the plywood oil cylinder 11 after the balanced valve 9 by the A mouth of the electro-hydraulic reversing valve 8 into
T mouthfuls go out after enter drainback passage.
The present embodiment is by being arranged the electro-hydraulic reversing valve 8, the regeneration check valve 7, the balanced valve 9 and the hydraulic control
Check valve 10 is not improving oil supply structure so that hydraulic oil is reused during the plywood of the filter press
On the basis of output displacement, the plywood efficiency of plywood oil cylinder 11 is substantially increased
Further, the present embodiment further includes that one end is connected to the check valve 5, the other end is connected to the drainback passage
Electromagnetism unloading overflow valve 6, when filter press needs plywood, the electromagnetism unloading overflow valve 6 is in an off state, and hydraulic oil is through institute
Enter the electro-hydraulic reversing valve 8 after stating check valve 5；When filter press is not necessarily to plywood, the electromagnetism unloading overflow valve 6 is in closure
State, hydraulic oil directly will enter the drainback passage through the electromagnetism unloading overflow valve 6 after the check valve 5.
On the basis of the above embodiments, the present embodiment further include set on the plywood oil cylinder 11 rodless cavity 18 with it is described
Safe relief circuit between drainback passage.Specifically, safe relief circuit includes being arranged in the hydraulic control one-way valve 10 and institute
State the safety overflow valve 14 between drainback passage, and the one-way throttle valve 12 and electromagnetic ball in parallel with the safety overflow valve 14
Valve 13.
In the present embodiment, on the one hand, in 11 pressure maintaining period of plywood oil cylinder, due to feeding or squeezing the originals such as counter-force
Cause, the oil liquid pressure in the plywood oil cylinder 11 may increase, when the safe pressure for being increased to the safety overflow valve 14 and setting
When, the safety overflow valve 14 is quickly opened, and is discharged partial pressure, is maintained the peace of the oil liquid pressure in the plywood oil cylinder 11
Entirely；On the other hand, before the piston rod 16 of the plywood oil cylinder 11 retracts, it is first turned on the Solenoid ball valve 13, makes to close
Hydraulic oil in the rodless cavity 18 of leaf fat cylinder 11 is logical to oil return after one-way throttle valve 12, then through 13 oil return of Solenoid ball valve
Road, so that the oil liquid pressure in the rodless cavity 18 of the plywood oil cylinder 11 is discharged, and it is without running the Oil pump electrical machinery 3,
Save electric energy；Meanwhile the plywood oil cylinder 11 is executed again after discharging the pressure in the rodless cavity 18 of the plywood oil cylinder 11
The piston rod 16 retract action, greatly eliminate vibration and impact；Therefore, the safe relief circuit not only ensure that
The rodless cavity 18 of the plywood oil cylinder 11 is no more than setting safe pressure, and eliminates the 18 oil liquid off-load of rodless cavity
The vibration and impact for being.
On the basis of the above, the oil supply structure includes the hydraulic oil in hydraulic oil container 1 and the driving hydraulic oil container 1
Into the Oil pump electrical machinery 3 of double pressure two-flow hydraulic pumps 4；Further, the fuel-displaced place of the hydraulic oil container 1 is additionally provided with oil suction
Filter 2, the oil absorption filter 2 are filtered the oil liquid that will enter double pressure two-flow hydraulic pumps 4.
As the preferred embodiment of the present embodiment, the tail end of the drainback passage is connected to the hydraulic oil container 1, described
Be additionally provided with return filter 15 on drainback passage, the return filter 15 to will be back to beat up oil return in hydraulic oil container 1 into
Row filtering, guarantees oil return quality.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (4)
1. filter press hydraulic control circuit, it is characterised in that: it includes oil supply structure, and the double pressures being connected to the oil supply structure are double
Flow hydraulic pump (4), the electro-hydraulic reversing valve (8) being set between double pressures two-flow hydraulic pump (4) and plywood oil cylinder (11), if
Check valve (5) between double pressures two-flow hydraulic pump (4) and the electro-hydraulic reversing valve (8), is set to the electro-hydraulic commutation
Hydraulic control one-way valve (10) between valve (8) and the rodless cavity (18) of plywood oil cylinder (11) is set to having for plywood oil cylinder (11)
Regeneration check valve (7) between rod cavity (17) and the electro-hydraulic reversing valve (8) is connected to the rod chamber in the plywood oil cylinder (11)
(17) balanced valve (9) between the electro-hydraulic reversing valve (8), and the drainback passage being connected to the electro-hydraulic reversing valve (8)；
Wherein, when filter press is closed filter plate, the oil supply structure work makes hydraulic oil enter double pressure two-flow hydraulic pumps
(4), the outlet oil pressure of double pressures two-flow hydraulic pump (4) is low, and the stroking mechanism in double pressures two-flow hydraulic pump (4) will
The discharge capacity of double pressures two-flow hydraulic pump (4) is arranged to maximum value, and hydraulic oil is through the check valve (5) by the electro-hydraulic commutation
The P mouth of valve (8) is interior into the rodless cavity (18) of the plywood oil cylinder (11) after the hydraulic control one-way valve (10) after going out into B mouthfuls,
And the plywood oil cylinder (11) is pushed constantly to be slided from the rodless cavity (18) to the rod chamber (17), make the plywood oil cylinder
(11) quickly stretch out piston rod (16), the hydraulic oil in the rod chamber (17) by after the regeneration check valve (7) again by institute
The piston rod (16) that the P mouth for stating electro-hydraulic reversing valve (8) continues to press on the plywood oil cylinder (11) into B mouthfuls stretches out；Work as filters pressing
After the filter plate of machine is closed completely, it is double that the outlet oil pressure of double pressures two-flow hydraulic pump (4) raises to above double pressures
The stroking mechanism of the low pressure setting value of flow hydraulic pump (4), double pressures two-flow hydraulic pump (4) is double-current by double pressures
The discharge capacity of amount hydraulic pump (4) is arranged to minimum value, hydraulic oil through the check valve (5) by the electro-hydraulic reversing valve (8) P mouth into
B mouthfuls go out after after the hydraulic control one-way valve (10) into the plywood oil cylinder (11) rodless cavity (18) in, the electro-hydraulic commutation
Hydraulic pressure at the B mouth of valve (8) conducts internal to the balanced valve (9) and opens balanced valve (9), the plywood oil cylinder (11)
Rodless cavity (18) in hydraulic oil after the balanced valve (9) by the A mouth of the electro-hydraulic reversing valve (8) into T mouthfuls go out after enter
Drainback passage；
It further include the electromagnetism unloading overflow valve that one end is connected to the check valve (5), the other end is connected to the drainback passage
(6), when filter press needs plywood, the electromagnetism unloading overflow valve (6) is in an off state, and hydraulic oil is through the check valve
(5) enter the electro-hydraulic reversing valve (8) afterwards；When filter press is not necessarily to plywood, the electromagnetism unloading overflow valve (6) is in closed form
The check valve (5) is directly entered the drainback passage through the electromagnetism unloading overflow valve (6) afterwards by state, hydraulic oil；
It further include the safe relief circuit between the rodless cavity (18) and the drainback passage of the plywood oil cylinder (11)；Its
In, safe relief circuit includes the safety overflow valve being arranged between the hydraulic control one-way valve (10) and the drainback passage
And one-way throttle valve (12) and Solenoid ball valve (13) with the safety overflow valve (14) parallel connection (14),.
2. filter press hydraulic control circuit according to claim 1, it is characterised in that: the oil supply structure includes hydraulic oil
Hydraulic oil in case (1) and the driving hydraulic oil container (1) enters the Oil pump electrical machinery of double pressures two-flow hydraulic pump (4)
(3)。
3. filter press hydraulic control circuit according to claim 2, it is characterised in that: the hydraulic oil container (1) it is fuel-displaced
Place is additionally provided with oil absorption filter (2).
4. filter press hydraulic control circuit according to claim 2, it is characterised in that: the tail end of the drainback passage and institute
Hydraulic oil container (1) connection is stated, is additionally provided with return filter (15) on the drainback passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365593.5A CN107013526B (en) | 2017-05-22 | 2017-05-22 | Filter press hydraulic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365593.5A CN107013526B (en) | 2017-05-22 | 2017-05-22 | Filter press hydraulic control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013526A CN107013526A (en) | 2017-08-04 |
| CN107013526B true CN107013526B (en) | 2019-09-17 |
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ID=59450288
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710365593.5A Active CN107013526B (en) | 2017-05-22 | 2017-05-22 | Filter press hydraulic control circuit |
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| CN (1) | CN107013526B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU226560U1 (en) * | 2023-12-05 | 2024-06-10 | Общество с ограниченной ответственностью "ГИДРО-СТАР" | CONTROL DEVICE FOR WHEEL STEERING OF THE REAR AXLE OF A VEHICLE |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488132B (en) * | 2018-05-18 | 2020-07-03 | 江苏通达船用阀泵有限公司 | Double-cylinder automatic control valve |
| CN108916139B (en) * | 2018-06-15 | 2020-08-07 | 沪东中华造船(集团)有限公司 | Hydraulic type jig frame supporting system and using method thereof |
| CN112121481B (en) * | 2020-09-30 | 2022-03-29 | 株洲时代新材料科技股份有限公司 | Full-automatic protection method and system for open-close plates of filter press |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433446Y (en) * | 2000-08-02 | 2001-06-06 | 上海三信液压有限公司 | Hydraulic control combination valve of clippers of crusher |
| CN101680207A (en) * | 2007-05-11 | 2010-03-24 | 诺德液压股份公司 | Hydraulic valve device |
| CN202356462U (en) * | 2011-12-11 | 2012-08-01 | 海天塑机集团有限公司 | Hydraulic control loop of straightener |
| CN102767206A (en) * | 2012-07-31 | 2012-11-07 | 徐州徐工挖掘机械有限公司 | Valve outer flow regenerating unit of hydraulic excavator |
| CN103047216A (en) * | 2012-12-25 | 2013-04-17 | 华菱星马汽车（集团）股份有限公司 | Pressure induction regeneration balance valve device for crane telescopic boom cylinder |
| CN104066897A (en) * | 2011-12-22 | 2014-09-24 | 沃尔沃建筑设备公司 | A method for controlling lowering of an implement of a working machine |
| CN104500482A (en) * | 2014-11-11 | 2015-04-08 | 无锡市张泾机械设备厂 | Energy-saving hydraulic system of filter press |
| CN104828721A (en) * | 2015-05-05 | 2015-08-12 | 中国水产科学研究院渔业机械仪器研究所 | Self-balancing compensation system, marine crane and control method thereof |
| JP5917278B2 (en) * | 2012-05-07 | 2016-05-11 | 株式会社クボタ | Filter press dehydrator |
| CN105940356A (en) * | 2014-01-27 | 2016-09-14 | 沃尔沃建造设备有限公司 | Device for controlling regenerated flow rate for construction machine and method for controlling same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206785774U (en) * | 2017-05-22 | 2017-12-22 | 株洲天合天颐环境设备有限公司 | Filter press hydraulic control circuit |
-
2017
- 2017-05-22 CN CN201710365593.5A patent/CN107013526B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433446Y (en) * | 2000-08-02 | 2001-06-06 | 上海三信液压有限公司 | Hydraulic control combination valve of clippers of crusher |
| CN101680207A (en) * | 2007-05-11 | 2010-03-24 | 诺德液压股份公司 | Hydraulic valve device |
| CN202356462U (en) * | 2011-12-11 | 2012-08-01 | 海天塑机集团有限公司 | Hydraulic control loop of straightener |
| CN104066897A (en) * | 2011-12-22 | 2014-09-24 | 沃尔沃建筑设备公司 | A method for controlling lowering of an implement of a working machine |
| JP5917278B2 (en) * | 2012-05-07 | 2016-05-11 | 株式会社クボタ | Filter press dehydrator |
| CN102767206A (en) * | 2012-07-31 | 2012-11-07 | 徐州徐工挖掘机械有限公司 | Valve outer flow regenerating unit of hydraulic excavator |
| CN103047216A (en) * | 2012-12-25 | 2013-04-17 | 华菱星马汽车（集团）股份有限公司 | Pressure induction regeneration balance valve device for crane telescopic boom cylinder |
| CN105940356A (en) * | 2014-01-27 | 2016-09-14 | 沃尔沃建造设备有限公司 | Device for controlling regenerated flow rate for construction machine and method for controlling same |
| CN104500482A (en) * | 2014-11-11 | 2015-04-08 | 无锡市张泾机械设备厂 | Energy-saving hydraulic system of filter press |
| CN104828721A (en) * | 2015-05-05 | 2015-08-12 | 中国水产科学研究院渔业机械仪器研究所 | Self-balancing compensation system, marine crane and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 厢式压滤机典型液压系统的设计、改进与对比分析;周志根;《液压与气动》;20120115(第1期);第68-72页 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU226560U1 (en) * | 2023-12-05 | 2024-06-10 | Общество с ограниченной ответственностью "ГИДРО-СТАР" | CONTROL DEVICE FOR WHEEL STEERING OF THE REAR AXLE OF A VEHICLE |
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