CN109296579A - Balanced valve and hydraulic motor - Google Patents
Balanced valve and hydraulic motor Download PDFInfo
- Publication number
- CN109296579A CN109296579A CN201811457244.7A CN201811457244A CN109296579A CN 109296579 A CN109296579 A CN 109296579A CN 201811457244 A CN201811457244 A CN 201811457244A CN 109296579 A CN109296579 A CN 109296579A
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- Prior art keywords
- valve
- balance
- valve core
- balanced
- oil inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 abstract description 6
- 230000010355 oscillation Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 106
- 239000007788 liquid Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 5
- 239000010705 motor oil Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
-
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of balanced valve and hydraulic motors, the balanced valve includes valve body, balance valve core, first check valve and second one-way valve, the first oil inlet is offered on valve body, first is fuel-displaced, be connected to the first oil inlet and first it is fuel-displaced between first runner and be connected to balance valve core and the first oil inlet second flow channel, first oil inlet is connected to the oil inlet of first check valve, the oil outlet of first check valve is connected to the balance valve core, first oil inlet is connected by the second one-way valve with the first oil outlet, the balance valve core is connect with institute's second one-way valve, accommodating cavity is formed between the balance valve core and the valve body, throttle structure is provided between the accommodating cavity and the second flow channel, the hydraulic motor includes above-mentioned balanced valve, balanced valve it is small in size, integrated level is high, when hydraulic motor Inlet pressure decline or when for shortage of oil, balance valve core is closed, motor rotary speed decline, and this process valve core movement is steady, and the shut-in time is adjustable, and oil pressure will not increase moment out, and pressure oscillation is smaller, to protect hydraulic motor and hydraulic system.
Description
Technical field
The present invention relates to hydraulic motor technical field, in particular to a kind of balanced valve and the hydraulic motor with it.
Background technique
Balanced valve is a kind of valve that flow equilibrium is adjusted for control valve pressure at both sides or by the method for shunting.
Hydraulic motor balanced valve is that a kind of hydraulic motor guarantee motor inlet pressure that is used for is constant, makes the control of hydraulic motor smooth running
Valve processed.
The balanced valve and motor of existing hydraulic motor are the check valves of relatively independent two modules or motor oil inlet
It using separate structure, causes balanced valve bulky, increases cost, and since the time of balance valve core return not can control,
Return overlong time is too short, causes the compression shock of hydraulic motor larger.
Summary of the invention
The purpose of the present invention is to provide a kind of balanced valve, to solve, existing balanced valve volume is big, complicated technology
Problem.
Another object of the present invention is to provide a kind of hydraulic motors, multiple with the balancing valve structure for solving existing hydraulic motor
The technical problems such as miscellaneous, integrated level is low, and through-current capacity is small, and the compression shock of hydraulic motor is larger.
The present invention is achieved by the following technical solutions:
First aspect present invention provides a kind of balanced valve, including valve body, balance valve core, the first check valve and second are unidirectionally
Valve offers the first oil inlet, first fuel-displaced, being connected to the balance valve core and first oil inlet first on the valve body
Runner and connection first oil inlet and first it is fuel-displaced between second flow channel；
The first check valve, the oil inlet of first oil inlet and first check valve are provided in the first runner
Connection, the oil outlet of first check valve are connected to the balance valve core, and it is single that described second is provided in the second flow channel
To valve, first oil inlet is connected by the second one-way valve with the first oil outlet, and the balance valve core and institute second are single
It is connected to valve, the balance valve core and the second one-way valve are coaxially disposed, and the balance valve core is matched with the second one-way valve
It closes to block being connected to for first oil inlet and first oil outlet, is formed and held between the balance valve core and the valve body
Chamber is set, the throttle butterfly that the accommodating cavity and the second flow channel is connected is provided between the accommodating cavity and the second flow channel
Structure.
Balanced valve as described above, the inflow-rate of water turbine of first check valve are less than the inflow-rate of water turbine of the second one-way valve.
Balanced valve as described above is arranged with spring on the balanced valve, and the spring is for controlling the balance valve core
Cracking pressure.
The circumferential surface of balanced valve as described above, the balance valve core and second one-way valve cooperation is the conical surface.
Balanced valve as described above, the throttle structure are screw plug, and the flow of the throttle structure is adjustable.
Balanced valve as described above, the throttle structure are gradually smaller from the accommodating cavity to diameter between second flow channel
Aperture.
Balanced valve as described above, the throttle structure are throttle orifice, and the throttle orifice is from the accommodating cavity to second flow channel
Between diameter it is identical.
Second aspect of the present invention provides a kind of hydraulic motor, and the hydraulic motor includes balanced valve as described above.
Hydraulic motor as described above, the hydraulic motor are two-way hydraulic motor.
Balanced valve of the invention, including valve body, balance valve core, the first check valve and second one-way valve, the first runner
It is inside provided with the first check valve, first oil inlet is connected to the oil inlet of first check valve, first check valve
Oil outlet be connected to the balance valve core, the second one-way valve, first oil inlet are provided in the second flow channel
It is connected by the second one-way valve with the first oil outlet, the balance valve core is connect with institute's second one-way valve, the balanced valve
Core and the second one-way valve are coaxially disposed, and the present invention is by the way that balance valve core, the first check valve and second one-way valve to be integrated in
On valve body, the volume of entire balanced valve is reduced, integrated level is high；Balanced valve of the invention is when in use when the first oil inlet oil inlet
When fraction oil liquid the first side of balance valve core entered by the first check valve, push balance valve core mobile to its second side, main pressure
Power oil by second one-way valve from the first oil outlet outflow enter driving element, when the first inlet pressure decline or fuel feeding not
When sufficient, balance valve core is moved to its first side, cannot be flowed out from balanced valve by the oil liquid of driving element, the first oil outlet pressure
It increasing, driving element reduction of speed even stops operating, due to the first unidirectional valve action, when balance valve core is moved to its first side,
Oil liquid in accommodating cavity can only be flowed out from throttle structure, to extend the return time of balance valve core, keep balance valve core movement flat
Surely, the oil pressure out of driving element will not increase moment, and pressure oscillation is smaller, to protect driving element.
Hydraulic motor of the invention includes above-mentioned balanced valve, and balanced valve includes valve body, balance valve core, the first check valve and
Two check valves are provided with the first check valve, the oil inlet of first oil inlet and first check valve in the first runner
Mouth connection, the oil outlet of first check valve are connected to the balance valve core, and described second is provided in the second flow channel
Check valve, first oil inlet are connected by the second one-way valve with the first oil outlet, the balance valve core and institute second
Check valve connection, the balance valve core and the second one-way valve are coaxially disposed, and the hydraulic motor is by by balance valve core, first
Check valve and second one-way valve are integrated on valve body, reduce the volume of entire balanced valve, and integrated level is high；Balanced valve is when in use
When the first oil inlet oil inlet, fraction oil liquid enters the first side of balance valve core by the first check valve, push balance valve core to its
Second side is mobile, and principal pressure oil enters hydraulic motor from the outflow of the first oil outlet by second one-way valve, when the first oil inlet pressure
Power decline or when for shortage of oil, balance valve core is moved to its first side, cannot be from balanced valve by the oil liquid of hydraulic motor
The outflow of first oil outlet, the first oil outlet pressure rise, hydraulic motor reduction of speed even stop operating, since the first check valve is made
With when balance valve core is moved to its first side, the oil liquid in accommodating cavity can only be flowed out from throttle structure, to extend balanced valve
The return time of core keeps balance valve core movement steady, and the oil pressure out of hydraulic motor will not increase moment, and pressure oscillation is smaller,
To protect hydraulic motor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is structural schematic diagram of the hydraulic motor balanced valve provided in an embodiment of the present invention under a visual angle；
Fig. 2 is hydraulic motor balanced valve the schematic diagram of the section structure provided in an embodiment of the present invention；
Fig. 3 is hydraulic motor balanced valve working principle structural schematic diagram provided in an embodiment of the present invention.
Description of symbols:
1- valve body；
2- balance valve core；
The first check valve of 3-；
4- second one-way valve；
5- accommodating cavity；
6- throttle structure；
The first oil inlet of 11-；
The first oil outlet of 12-；
13- first runner；
14- second flow channel.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.It should be noted that the orientation or positional relationship of the instructions such as term "left", "right" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In the description of the present invention, it is to be understood that, term " includes " used herein and " having " and they
Any deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, being
System, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or
For the intrinsic other step or units of these process, methods, product or equipment.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
Balanced valve is a kind of valve that flow equilibrium is adjusted for control valve pressure at both sides or by the method for shunting.
Hydraulic motor balanced valve is that a kind of hydraulic motor guarantee motor inlet pressure that is used for is constant, makes the control of hydraulic motor smooth running
Valve processed.
The balanced valve of existing hydraulic motor and the check valve of motor oil inlet use separate structure, cause balanced valve volume huge
Greatly, and check valve it is small by flow, cause the compression shock of hydraulic motor larger.
The present invention is based on problem above to propose a kind of balanced valve and hydraulic motor.
It describes in detail combined with specific embodiments below to balanced valve provided by the invention and hydraulic motor.
Embodiment one:
Fig. 1 is structural schematic diagram of the hydraulic motor balanced valve provided in an embodiment of the present invention under a visual angle, and Fig. 2 is this hair
The hydraulic motor balanced valve the schematic diagram of the section structure that bright embodiment provides please refers to Fig. 1, shown in 2, the balanced valve packet of the present embodiment
Valve body 1, balance valve core 2, the first check valve 3 and second one-way valve 4 are included, the first oil inlet 11, first is offered on the valve body 1
Fuel-displaced 12, the balance valve core 2 and the first runner 13 of first oil inlet 11 are connected to and is connected to first oil inlet
Second flow channel 14 between 11 and first fuel-displaced 12.
It is provided with the first check valve 3, balance valve core 2 in the first runner 13, is provided with second in the second flow channel
Check valve 4, first oil inlet 11 are connected to the oil inlet of first check valve 3, the oil outlet of first check valve 3
It is connected to the balance valve core 2,
First oil inlet 11 is connected by the second one-way valve 4 and the first oil outlet 12, the balance valve core 2 with
Institute's second one-way valve 4 connects, and the balance valve core 2 is coaxially disposed with the second one-way valve 4, the balance valve core 2 with it is described
The cooperation of second one-way valve 4 to block being connected to for first oil inlet 11 and first oil outlet 12, the balance valve core 2 with
Accommodating cavity 5 is formed between the valve body 1, and the conducting accommodating cavity 5 is provided between the accommodating cavity 5 and the second flow channel 14
With the throttle structure 6 of the second flow channel 14.
Valve body 1 described in the present embodiment is generally metal structure and is process, the present embodiment to the shape of the valve body 1 and
Specific material is not particularly limited.
Check valve in the present embodiment is used to prevent the valve of oil stream reverse flow, enters from the first oil inlet 11 hydraulic
Oil stream moves right through 3 pusher dynamic balancing spool 2 of the first check valve, and the first check valve 3 in the present embodiment keeps balance valve core 2 left
The hydraulic oil of side cannot be flowed out from the first check valve 3, can only be flowed out from throttle structure, to slow down the balance valve core return time simultaneously
And keep balanced valve return steady.The present embodiment is not particularly limited the specific structure of the first check valve 3.
The hydraulic oil entered in the present embodiment from the first oil inlet 11 enters hydraulic through second flow channel 14 and second one-way valve 4
Driving element, the present embodiment are not particularly limited the specific structure of the second one-way valve 4.
Balanced valve of the invention, including valve body, balance valve core, the first check valve and second one-way valve, the first runner
It is inside provided with the first check valve, first oil inlet is connected to the oil inlet of first check valve, first check valve
Oil outlet be connected to the balance valve core, the second one-way valve, first oil inlet are provided in the second flow channel
It is connected by the second one-way valve with the first oil outlet, the balance valve core is connect with institute's second one-way valve, the balanced valve
Core and the second one-way valve are coaxially disposed, and for the present invention by the way that balance valve core, the first check valve to be integrated on valve body, second is single
It is integrated on balance valve core to valve, reduces the volume of entire balanced valve, integrated level is high；Balanced valve of the invention when in use when
Fraction oil liquid enters the first side of balance valve core by the first check valve when the first oil inlet oil inlet, push balance valve core to its
Two sides are mobile, and principal pressure oil enters driving element from the outflow of the first oil outlet by second one-way valve, flow out by overbalance valve,
When the first inlet pressure declines or when for shortage of oil, balance valve core move to its first side, middle position is returned to, it is first to pass through driving
The oil liquid of part cannot be flowed out from balanced valve, driving element reduction of speed even stops operating, and due to the first unidirectional valve action, works as balance
When spool is moved to its first side, the oil liquid in accommodating cavity can only be flowed out from throttle structure, to extend the return of balance valve core
Time keeps balance valve core movement steady, and the oil pressure out of driving element will not increase moment, and pressure oscillation is smaller, to protect
Driving element.
Embodiment two:
The present embodiment provides a kind of balanced valve, the balanced valve and embodiment one have similar overall structure, the difference is that this
Embodiment has carried out specific introduction to the first check valve, second one-way valve and balance valve core.
In the present embodiment, the balance valve core is driven to act by the hydraulic oil of first check valve, it is single by second
It is used to provide power for driving element to the hydraulic oil of valve, the inflow-rate of water turbine of first check valve is less than the second one-way valve
Inflow-rate of water turbine.
Further, in this embodiment being arranged with spring on the balance valve core, the spring is for controlling the balance
The cracking pressure of spool controls movement and the return of balance valve core by spring, and structure is simple, and it is convenient to realize.
In the present embodiment, the circumferential surface of the balance valve core and second one-way valve cooperation is the conical surface, by using the conical surface
Cooperation further reduces the volume of balance valve core and second one-way valve cooperation, improves the integrated level of entire balanced valve.
Embodiment three:
The present embodiment provides a kind of balanced valve, the balanced valve and embodiment one have similar overall structure, the difference is that this
Embodiment has carried out specific introduction to throttle structure.
In the present embodiment, the throttle structure is throttle orifice, and the throttle orifice is from the accommodating cavity between second flow channel
Diameter is identical.
Optionally, the throttle structure is to lead to from the accommodating cavity to the gradually smaller aperture of diameter between second flow channel
It crosses and is set as further prolonging from the accommodating cavity to the gradually smaller aperture of diameter between second flow channel by throttle structure
The return time of long balance valve core keeps balance valve core movement more stable.
Optionally or the throttle structure is screw plug, and the flow of the throttle structure is adjustable.By by throttle structure
Flow set be it is adjustable, the flow of throttle structure can be adjusted according to the actual operation.
Example IV:
Fig. 3 is hydraulic motor balanced valve working principle structural schematic diagram provided in an embodiment of the present invention, please refers to Fig. 2,3 institutes
Show, the present embodiment provides a kind of hydraulic motor, the hydraulic motor includes embodiment one or embodiment two or embodiment three
The balanced valve.
For example, the balanced valve of the present embodiment hydraulic motor includes valve body 1, balance valve core 2, the first check valve 3 and the second list
To valve 4, the first oil inlet 11, the first oil outlet 12 and connection first oil inlet 11 and first are offered on the valve body
First runner 13 and second flow channel 14 between oil outlet 12；
It is provided with the first check valve 3, balance valve core 2 in the first runner 13, is provided with second in the second flow channel
Check valve 4, first oil inlet 11 are connected to the oil inlet of first check valve 3, the oil outlet of first check valve 3
It is connected to the balance valve core 2, first oil outlet 11 is connected by the second one-way valve 4 and the first oil outlet 12, institute
It states balance valve core 2 to connect with institute second one-way valve 4, the balance valve core 2 is coaxially disposed with the second one-way valve 4, described flat
Weighing has accommodating cavity 5 between spool 2 and the valve body 1, be provided with throttle structure between the accommodating cavity and the second flow channel
6。
Further, the hydraulic motor is two-way hydraulic motor.
The course of work and principle of the present embodiment hydraulic motor balanced valve are as follows:
When motor oil inlet, the first check valve 3 and first runner 13 are passed through by the fraction oil liquid of the first oil inlet 11
Into the left side of balance valve core 2, the left pressure of balance valve core 2 increases that balance valve core 2 is pushed to move right, while main pressure
Power oil enters hydraulic motor by second flow channel 14 and second one-way valve 4, flows out later from oil outlet, when there is the first oil inlet
11 pressure decline or when for shortage of oil, balance valve core 2 moves downward return under spring force, passes through hydraulic motor
Oil liquid cannot be from oil outlet (in figure invisible) outflow, to make oil outlet pressure rise, hydraulic motor reduction of speed even stops turning
It is dynamic.Since the first check valve 3 acts on, when balance valve core 2 moves downward, can only lead in the oil liquid of 2 left side cavity of balance valve core
The outflow of throttle structure 6 is crossed, to extend the return time of balance valve core, such balance valve core 2 is moved steadily, and hydraulic motor goes out
Oil pressure will not increase moment, and pressure oscillation is smaller, to protect hydraulic motor.
Hydraulic motor of the invention includes above-mentioned balanced valve, and balanced valve includes valve body, balance valve core, the first check valve and
Two check valves are provided with the first check valve, the oil inlet of first oil inlet and first check valve in the first runner
Mouth connection, the oil outlet of first check valve are connected to the balance valve core, and described second is provided in the second flow channel
Check valve, first oil inlet are connected by the second one-way valve with the first oil outlet, the balance valve core and institute second
Check valve connection, the balance valve core and the second one-way valve are coaxially disposed, and the hydraulic motor is by by balance valve core, first
Check valve and second one-way valve are integrated on valve body, reduce the volume of entire balanced valve, and integrated level is high；Balanced valve is when in use
When the first oil inlet oil inlet, fraction oil liquid enters the first side of balance valve core by the first check valve, push balance valve core to its
Second side is mobile, and principal pressure oil enters hydraulic motor from the outflow of the first oil outlet by second one-way valve, when the first oil inlet pressure
Power decline or when for shortage of oil, balance valve core is moved to its first side, cannot be from balanced valve by the oil liquid of hydraulic motor
The outflow of first oil outlet, the first oil outlet pressure rise, hydraulic motor reduction of speed even stop operating, since the first check valve is made
With when balance valve core is moved to its first side, the oil liquid in accommodating cavity can only be flowed out from throttle structure, to extend balanced valve
The return time of core keeps balance valve core movement steady, and the oil pressure out of hydraulic motor will not increase moment, and pressure oscillation is smaller,
To protect hydraulic motor.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of balanced valve, it is characterised in that:
Including valve body, balance valve core, the first check valve and second one-way valve, the first oil inlet, first are offered on the valve body
It fuel-displaced, the connection balance valve core and the first runner of first oil inlet and is connected to first oil inlet and first and goes out
Second flow channel between oil；
The first check valve, the oil inlet company of first oil inlet and first check valve are provided in the first runner
Logical, the oil outlet of first check valve is connected to the balance valve core, and it is unidirectional that described second is provided in the second flow channel
Valve, first oil inlet are connected by the second one-way valve with the first oil outlet, and the balance valve core and institute second are unidirectional
Valve connection, the balance valve core and the second one-way valve are coaxially disposed, and the balance valve core and the second one-way valve cooperate
To block being connected to for first oil inlet and first oil outlet, accommodating is formed between the balance valve core and the valve body
Chamber is provided with the throttle structure that the accommodating cavity and the second flow channel is connected between the accommodating cavity and the second flow channel.
2. balanced valve according to claim 1, it is characterised in that:
The inflow-rate of water turbine of first check valve is less than the inflow-rate of water turbine of the second one-way valve.
3. balanced valve according to claim 1, it is characterised in that:
Spring is arranged on the balance valve core, the spring is used to control unlatching/closing pressure of the balance valve core.
4. balanced valve according to claim 1, it is characterised in that:
The balance valve core and the circumferential surface of second one-way valve cooperation are the conical surface.
5. balanced valve according to claim 1, it is characterised in that:
The throttle structure is throttle orifice, and the throttle orifice is identical from the accommodating cavity to diameter between second flow channel.
6. balanced valve according to claim 1, it is characterised in that:
The throttle structure is from the accommodating cavity to the gradually smaller aperture of diameter between second flow channel.
7. balanced valve according to claim 1, it is characterised in that:
The throttle structure is screw plug, and the flow of the throttle structure is adjustable.
8. a kind of hydraulic motor, which is characterized in that the hydraulic motor includes the described in any item balanced valves of claim 1-7.
9. hydraulic motor according to claim 8, it is characterised in that:
The hydraulic motor is two-way hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457244.7A CN109296579B (en) | 2018-11-30 | 2018-11-30 | Balance valve and hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457244.7A CN109296579B (en) | 2018-11-30 | 2018-11-30 | Balance valve and hydraulic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109296579A true CN109296579A (en) | 2019-02-01 |
| CN109296579B CN109296579B (en) | 2024-06-07 |
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|---|---|---|---|
| CN201811457244.7A Active CN109296579B (en) | 2018-11-30 | 2018-11-30 | Balance valve and hydraulic motor |
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| CN (1) | CN109296579B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653695A (en) * | 2021-08-30 | 2021-11-16 | 杭州力龙液压有限公司 | Balance valve structure and engineering machinery |
| CN115478977A (en) * | 2022-09-29 | 2022-12-16 | 青岛力克川液压机械有限公司 | Hydraulic motor device capable of acquiring output rotating speed in real time |
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| JPH07190002A (en) * | 1993-12-27 | 1995-07-28 | Hitachi Constr Mach Co Ltd | Hydraulic driving device |
| KR20080006951A (en) * | 2006-07-14 | 2008-01-17 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Counter balance valve of dynamometer machine |
| CN101956734A (en) * | 2010-10-21 | 2011-01-26 | 吴赛珍 | Balance speed regulating integrated valve |
| CN103775434A (en) * | 2013-12-31 | 2014-05-07 | 中南大学 | Cartridge valve model selection method for direction control in vibration environment |
| CN105201942A (en) * | 2014-10-24 | 2015-12-30 | 徐州重型机械有限公司 | Balance valve and automobile crane |
| CN105201943A (en) * | 2015-01-23 | 2015-12-30 | 徐州重型机械有限公司 | Reversing valve, oil cylinder falling control valve and crane amplitude variation system |
| CN205654630U (en) * | 2016-03-03 | 2016-10-19 | 杭州力龙液压有限公司 | Antihunting valve |
| CN206972640U (en) * | 2017-07-17 | 2018-02-06 | 邹城市益凯德液压有限公司 | Bidirectional balanced valve |
| CN209261948U (en) * | 2018-11-30 | 2019-08-16 | 杭州力龙液压有限公司 | Balanced valve and hydraulic motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653695A (en) * | 2021-08-30 | 2021-11-16 | 杭州力龙液压有限公司 | Balance valve structure and engineering machinery |
| CN113653695B (en) * | 2021-08-30 | 2023-08-25 | 杭州力龙液压有限公司 | Balancing valve structure and engineering machinery |
| CN115478977A (en) * | 2022-09-29 | 2022-12-16 | 青岛力克川液压机械有限公司 | Hydraulic motor device capable of acquiring output rotating speed in real time |
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