CN116771747A - Accumulator liquid filling integrated valve - Google Patents
Accumulator liquid filling integrated valve Download PDFInfo
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- CN116771747A CN116771747A CN202310726234.3A CN202310726234A CN116771747A CN 116771747 A CN116771747 A CN 116771747A CN 202310726234 A CN202310726234 A CN 202310726234A CN 116771747 A CN116771747 A CN 116771747A
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- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 230000010354 integration Effects 0.000 claims description 17
- 238000012545 processing Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides an accumulator liquid filling integrated valve, which comprises a main valve body, a reversing valve and a control valve, wherein an oil inlet P, an oil outlet A and a bypass port S are arranged on the main valve body, and the oil inlet P is communicated with the oil outlet A through a liquid filling oil way; the reversing valve is arranged on the liquid-filled oil path and is provided with a first working position and a second working position, the first working position is used for enabling the oil inlet P to be communicated with the oil outlet A, and the second working position is used for enabling the oil inlet P to be communicated with the bypass port S; one end of the reversing valve core is provided with a first control port communicated with the oil inlet P, the other end of the reversing valve core is provided with a first spring and a second control port, and the first spring is used for biasing the reversing valve to a first working position; the control valve is integrated in the main valve body and is communicated with the second control port, and is used for controlling the reversing valve to switch between a first working position and a second working position; the accumulator charging integrated valve provided by the invention overcomes the defects of complex structure, poor processing quality and poor functionality of the existing charging valve.
Description
Technical Field
The invention relates to the field of filling valves, in particular to an accumulator filling integrated valve.
Background
In some engineering vehicles, the inertia is generally large, the speed is high, and the requirement on the braking performance of the vehicle is high. To improve braking performance, full hydraulic braking systems are commonly employed. For a full-hydraulic braking system, in order to improve intermittent operation of a high-pressure cycle of a brake pump or to ensure that the braking system and other circuits share a power source, an energy accumulator is generally added, so that the braking response is improved, the system is optimized, and the system can be used as an emergency power source for braking for a plurality of times when the power source fails, thereby facilitating parking and maintenance and ensuring driving safety. One of the key components in such a brake system is the accumulator charge valve.
The accumulator charging valve is mainly used for charging the accumulator, charging is carried out when the pressure is lower than the set lower limit pressure, charging is stopped when the pressure reaches the set upper limit pressure, and the pressure of the accumulator is always kept within a certain range (P1-P2) so as to meet the requirement of a vehicle braking system. For example, patent number CN215058554U discloses a liquid filling valve, which comprises a pressure selecting valve, a hydraulic control one-way valve, a pressure reducing valve, a hydraulic control valve and other parts, the parts are more, the oil way pipeline is more complex, the whole volume is larger after being integrated in the valve body, and the processing difficulty is high. The existing valve body is a standard valve member in a casting form, and the quality of the liquid filling valve is greatly influenced by the instability of casting materials and casting flow passages, so that a brake system of an engineering vehicle has a great hidden trouble; the standard casting valve body cannot meet the special working condition to carry out custom design and improvement; the imported liquid filling valve has high cost and long purchasing period, and causes great trouble to a host factory. And the existing valve body is generally lack of a pressure measuring port, so that the functionality is poor.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to solve the problem of providing an accumulator charging integrated valve so as to overcome the defects of complex structure, poor processing quality and poor functionality of the existing charging valve.
(II) technical scheme
In order to solve the technical problem, the invention provides an accumulator charging integrated valve, comprising:
the main valve body is provided with an oil inlet P for connecting an oil pump, an oil outlet A for connecting an energy accumulator and a bypass port S for connecting other hydraulic systems, and the oil inlet P is communicated with the oil outlet A through a liquid filling oil way;
the reversing valve is integrated in the main valve body and is arranged on the liquid filling oil path; the reversing valve is provided with a first working position and a second working position, the first working position is used for enabling the oil inlet P to be communicated with the oil outlet A, and the second working position is used for enabling the oil inlet P to be communicated with the bypass port S; one end of the reversing valve core is provided with a first control port communicated with the oil inlet P, the other end of the reversing valve core is provided with a first spring and a second control port, and the first spring is used for enabling the reversing valve to be biased towards the first working position;
and the control valve is integrated in the main valve body, is communicated with the second control port and is used for controlling the reversing valve to switch between the first working position and the second working position.
Further, the reversing valve comprises a first port communicated with the oil inlet P, a second port communicated with the oil outlet A and a third port communicated with the bypass port S; when the reversing valve is in the first working position, the first port is communicated with the second port, and the third port is cut off; when the reversing valve is in the second working position, the first port is communicated with the second port and the third port respectively.
Further, the control valve is provided with a first control position and a second control position, and when the control valve is positioned in the first control position, the reversing valve is controlled to be positioned in the first working position for filling liquid; and when the control valve is positioned at the second control position, controlling the reversing valve to be positioned at the second working position to stop filling. One end of the control valve core is provided with a first hydraulic control port communicated with the oil outlet A, the other end of the control valve core is provided with a second spring and a second hydraulic control port, the main valve body is provided with an oil return port T for being connected with an oil return tank, the second hydraulic control port is communicated with the oil return port T, and the second spring is used for biasing the control valve to the first control position; when the pressure of the first hydraulic control port is smaller than the elastic force of the second spring, the control valve is in the first control position; when the pressure of the first hydraulic control port is larger than the elastic force of the second spring, the control valve is in the second control position.
Further, the control valve comprises a fourth port communicated with the second control port, a fifth port communicated with the second port and a sixth port communicated with the oil return port T; when the control valve is in the first control position, the fifth port is connected with the fourth port, and the sixth port is disconnected; when the control valve is in the second control position, the fourth port is connected with the sixth port, and the fifth port is disconnected.
Further, a one-way valve is connected in series on a pipeline of the second port connected with the oil outlet A, a liquid inlet end of the one-way valve is connected with the second port, and a liquid outlet end of the one-way valve is connected with the oil outlet A. In the first working position and the second working position, throttling structures are arranged on pipelines of the first port and the second port; and a throttling structure is arranged on a pipeline of the second control port communicated with the fourth port.
Further, a first pressure measuring port MS, a second pressure measuring port MA and a load feedback oil port LS are arranged on the main valve body, the first pressure measuring port MS is communicated with a pipeline between the bypass port S and the third port, the second pressure measuring port MA is communicated with a pipeline between the one-way valve and the oil outlet A, and the load feedback oil port LS is communicated with a pipeline between the second control port and the fourth port.
Further, a first adjusting cap for adjusting the precompression amount of the first spring and a second adjusting cap for adjusting the precompression amount of the second spring are connected to the outer wall of the main valve body in a threaded mode, the first spring is abutted between the first adjusting cap and the valve core of the reversing valve, and the second spring is abutted between the second adjusting cap and the valve core of the control valve.
Furthermore, the reversing valve and the control valve are both hydraulic control type two-position three-way reversing valves, and the main valve body is manufactured by adopting sectional materials.
(III) beneficial effects
Compared with the prior art, the accumulator charging integrated valve provided by the invention has the following advantages:
1) The liquid filling valve simplifies components, redesigns an oil circuit pipeline, can realize the functions of automatic liquid filling and pressure maintaining of the liquid filling valve by adopting the cooperation of the control valve and the reversing valve, has fewer components, simpler oil circuit pipeline and smaller whole volume, and is convenient to process and manufacture;
2) The main valve body is made of sectional materials, and the size and the direction of an oil port of the valve body can meet the custom requirement; the hydraulic runner can be machined, so that the cleanliness is better, the cost is reduced, and the production period is shortened;
3) The pressure measuring port and the load feedback oil port are reserved on the main valve body, so that the pressure measuring port and the after-sale fault checking are convenient to debug, an alarm point is provided for low pressure of the energy accumulator, a driver can be timely fed back and reminded when a braking system is abnormal, accidents caused by the fact that the vehicle is still driven due to the failure of the braking system are avoided, the functionality is stronger, and the safety is higher.
Drawings
FIG. 1 is a perspective view of an accumulator charge integration valve of the present invention;
FIG. 2 is a perspective view of an alternative view of an accumulator charge integration valve of the present invention;
FIG. 3 is a schematic illustration of an accumulator charge integration valve of the present invention;
FIG. 4 is a cross-sectional view taken along section A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along section B-B of FIG. 3;
FIG. 6 is a perspective view of the internal structure of an accumulator charge integration valve of the present invention;
FIG. 7 is a schematic diagram of an accumulator charge integration valve circuit principle of the present invention;
FIG. 8 is a schematic diagram of the oil circuit principle of the connection of the reversing valve and the control valve of the accumulator charge integrated valve of the present invention;
FIG. 9 is a schematic diagram of a reversing valve for an accumulator charge integration valve according to the present invention;
FIG. 10 is a schematic diagram of a control valve for an accumulator charge integrated valve according to the present invention;
the corresponding component names for each reference number in the figures are: 1. a main valve body; 101. a liquid-filled oil path; 2. a reversing valve; 201. a first control port; 202. a first spring; 203. a second control port; 204. a first port; 205. a second port; 206. a third port; 3. a control valve; 301. a first pilot port; 302. a second spring; 303. a second pilot port; 304. a fourth port; 305. a fifth port; 306. a sixth port; 4. a one-way valve; 5. a throttle structure; 6. a first adjustment cap; 7. a second adjustment cap; p, an oil inlet; A. an oil outlet; s, a bypass port; t, an oil return port; MS, first pressure tap; MA, second pressure port; LS, load feedback hydraulic fluid port.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 10, the present invention provides an accumulator charge integration valve, comprising a main valve body 1, a reversing valve 2, a control valve 3 and a check valve 4.
Referring to fig. 1, 2 and 7, an oil inlet P for connecting an oil pump, an oil outlet a for connecting an accumulator and a bypass port S for connecting other hydraulic systems and providing pressure for other hydraulic systems are arranged on a main valve body 1, the oil inlet P is communicated with the oil outlet a through a liquid filling oil path 101, and an oil return port T for connecting an oil return tank is arranged on the main valve body 1. The main valve body 1 is made of sectional materials, and the size and the direction of an oil port of the valve body can meet the custom-made requirements; the hydraulic runner can be machined, so that the cleanliness is better, the cost is reduced, and the production period is shortened.
Referring to fig. 6 to 8, the reversing valve 2 is integrated in the main valve body 1 and is provided on the charging oil passage 101. The reversing valve 2 is provided with a first working position and a second working position, wherein the first working position is used for enabling the oil inlet P to conduct the oil outlet A to charge the accumulator, and the second working position is used for enabling the oil inlet P to conduct the bypass port S to stop charging the accumulator. One end of the spool of the reversing valve 2 is provided with a first control port 201 communicating with the oil inlet P, and the other end thereof is provided with a first spring 202 and a second control port 203, the first spring 202 being for biasing the reversing valve 2 towards the first working position.
Referring to fig. 7 and 9, the reversing valve 2 is a pilot-controlled two-position three-way reversing valve, and the reversing valve 2 includes a first port 204 communicating with the oil inlet P, a second port 205 communicating with the oil outlet a, and a third port 206 communicating with the bypass port S; when the reversing valve 2 is in the first working position (right position), the first port 204 is communicated with the second port 205, and the third port 206 is blocked; when the reversing valve 2 is in the second operating position (left position), the first port 204 communicates with the second port 205 and the third port 206, respectively. In the first working position and the second working position, the pipeline of the first port 204 connected with the second port 205 is provided with a throttling structure 5, and the throttling structure 5 can be a damping plug or a damping hole.
Referring to fig. 7, 8 and 10, the control valve 3 is integrated in the main valve body 1 and communicates with a second control port 203 for controlling the switching valve 2 to switch between a first operating position and a second operating position. The control valve 3 has a first control position and a second control position, and when the control valve 3 is in the first control position (upper position), the control reversing valve 2 is controlled to be in the first working position for filling; when the control valve 3 is in the second control position (lower position), the control switching valve 2 is in the second working position to stop charging.
Referring to fig. 8 and 10, one end of the valve core of the control valve 3 is provided with a first hydraulic control port 301 communicated with the oil outlet a, the other end of the valve core is provided with a second spring 302 and a second hydraulic control port 303, the second hydraulic control port 303 is communicated with an oil return port T, and the second spring 302 is used for biasing the control valve 3 to a first control position; when the pressure of the first hydraulic control port 301 is smaller than the elastic force of the second spring 302, the control valve 3 is in the first control position; when the pressure of the first pilot port 301 is greater than the elastic force of the second spring 302, the control valve 3 is in the second control position.
Referring to fig. 10, the control valve 3 is a hydraulic control type two-position three-way reversing valve, and the control valve 3 includes a fourth port 304 communicated with the second control port 203, a fifth port 305 communicated with the second port 205, and a sixth port 306 communicated with the oil return port T; when the control valve 3 is in the first control position, the fifth port 305 is turned on to the fourth port 304, and the sixth port 306 is turned off; when the control valve 3 is in the second control position, the fourth port 304 turns on the sixth port 306 and the fifth port 305 turns off. The pipeline of the second control port 203, which is communicated with the fourth port 304, is provided with a throttling structure 5, and the throttling structure 5 may be a damping plug or a damping hole.
Referring to fig. 7 and 8, a pipeline of the second port 205 connected with the oil outlet a is connected with a one-way valve 4 in series, a liquid inlet end of the one-way valve 4 is connected with the second port 205, and a liquid outlet end of the one-way valve 4 is connected with the oil outlet a; the one-way valve 4 is arranged to keep the pressure of the accumulator and prevent the pressure oil from flowing back to unload.
Referring to fig. 1, 2 and 7, a first pressure measuring port MS, a second pressure measuring port MA and a load feedback oil port LS are arranged on the main valve body 1, the first pressure measuring port MS is communicated with a pipeline between the bypass port S and the third port 206, and a pressure gauge can be installed on the first pressure measuring port MS and is used for observing pressure change of the bypass port S during debugging and troubleshooting. The second pressure measuring port MA is communicated with a pipeline between the one-way valve 4 and the oil outlet A, and a pressure switch can be arranged on the second pressure measuring port MA and can give an alarm when the pressure of the accumulator is low. The load feedback port LS is connected to the pipeline between the second control port 203 and the fourth port 304, and can be used as a load feedback signal port of the oil pump when the oil pump is a variable pump.
Referring to fig. 3 to 6, a first adjustment cap 6 for adjusting the precompression amount of a first spring 202 and a second adjustment cap 7 for adjusting the precompression amount of a second spring 302 are threadedly coupled to the outer wall of the main valve body 1, the first spring 202 being abutted between the first adjustment cap 6 and the spool of the reversing valve 2, and the second spring 302 being abutted between the second adjustment cap 7 and the spool of the control valve 3. In this way, the first adjusting cap 6 and the second adjusting cap 7 are arranged externally, so that the compression amount of the two springs can be conveniently adjusted, and the system pressure can be conveniently adjusted.
The accumulator charging integrated valve has the following use process:
in the initial liquid filling state: the control valve 3 is in the first control position (upper position) under the action of the second spring 302; the reversing valve 2 is in the first operating position (right position) under the action of the first spring 202; the pressure oil enters the reversing valve 2 from the oil inlet P, reaches the oil outlet A through the one-way valve 4 and is filled into the accumulator; at this time, the pressure oil passing through the direction valve 2 passes through the control valve 3 and then acts on the second control port 203 of the direction valve 2, and the sum of the pressure at the second control port 203 and the elastic force of the first spring 202 is greater than the pressure at the first control port 201, so that the direction valve 2 is maintained in the liquid-filled state at the first operating position.
End of filling state: when the pressure of the oil outlet a is larger than the elastic force of the second spring 302, the control valve 3 is switched from the first control position to the second control position (lower side position) so that the second control port 203 is communicated with the oil return port T, and at the moment, the pressure of the first control port 201 of the reversing valve 2 is larger than the elastic force of the first spring 202, and the reversing valve 2 is switched from the first working position to the second working position (left side position), so that the liquid filling is stopped; the accumulator is pressurized due to the presence of the one-way valve.
According to the accumulator liquid filling integrated valve provided by the embodiment, components are simplified, an oil circuit pipeline is redesigned, the functions of automatic liquid filling and pressure maintaining of the liquid filling valve can be realized by matching the control valve with the reversing valve, the components are fewer, the oil circuit pipeline is simpler, the whole volume is smaller, and the processing and the manufacturing are convenient; the main valve body adopts a section bar, and the size of the valve body and the direction of the oil port can meet the custom-made requirements; the hydraulic flow passage can be machined, so that the cleanliness is better, the cost is reduced, and the production period is shortened; the pressure measuring port and the load feedback oil port are reserved on the main valve body, so that the pressure measuring port and the after-sale fault checking are convenient to debug, an alarm point is provided for low pressure of the energy accumulator, a driver can be timely fed back and reminded when a braking system is abnormal, accidents caused by the fact that the vehicle is still driven due to the failure of the braking system are avoided, the functionality is stronger, and the safety is higher.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. An accumulator charge integration valve, comprising:
the main valve body (1) is provided with an oil inlet (P) for connecting an oil pump, an oil outlet (A) for connecting an energy accumulator and a bypass port (S) for connecting a hydraulic system, and the oil inlet (P) is communicated with the oil outlet (A) through a liquid filling oil way (101);
the reversing valve (2) is integrated in the main valve body (1) and is arranged on the liquid filling oil way (101); the reversing valve (2) is provided with a first working position and a second working position, the first working position is used for enabling the oil inlet (P) to conduct the oil outlet (A), and the second working position is used for enabling the oil inlet (P) to conduct the bypass port (S); a first control port (201) communicated with the oil inlet (P) is formed in one end of the valve core of the reversing valve (2), a first spring (202) and a second control port (203) are arranged at the other end of the valve core, and the first spring (202) is used for biasing the reversing valve (2) to the first working position;
and a control valve (3) integrated in the main valve body (1) and communicated with the second control port (203) for controlling the reversing valve (2) to switch between the first working position and the second working position.
2. The accumulator charge integration valve of claim 1, wherein: the reversing valve (2) comprises a first port (204) communicated with the oil inlet (P), a second port (205) communicated with the oil outlet (A) and a third port (206) communicated with the bypass port (S);
when the reversing valve (2) is in the first working position, the first port (204) is communicated with the second port (205), and the third port (206) is blocked; when the reversing valve (2) is in the second working position, the first port (204) is communicated with the second port (205) and the third port (206) respectively.
3. The accumulator charge integration valve of claim 2, wherein: the control valve (3) is provided with a first control position and a second control position, and when the control valve (3) is positioned in the first control position, the reversing valve (2) is controlled to be positioned in the first working position for filling liquid; when the control valve (3) is in the second control position, the reversing valve (2) is controlled to be in the second working position to stop filling.
4. The accumulator charge integration valve of claim 3, wherein: a first hydraulic control port (301) communicated with the oil outlet (A) is arranged at one end of a valve core of the control valve (3), a second spring (302) and a second hydraulic control port (303) are arranged at the other end of the valve core, an oil return port (T) used for being connected with an oil return tank is arranged on the main valve body (1), the second hydraulic control port (303) is communicated with the oil return port (T), and the second spring (302) is used for enabling the control valve (3) to be biased towards the first control position;
-when the pressure of the first pilot operated port (301) is smaller than the elastic force of the second spring (302), the control valve (3) is in the first control position; when the pressure of the first hydraulic control port (301) is larger than the elastic force of the second spring (302), the control valve (3) is in the second control position.
5. The accumulator charge integration valve of claim 4, wherein: the control valve (3) comprises a fourth port (304) in communication with the second control port (203), a fifth port (305) in communication with the second port (205), and a sixth port (306) in communication with the return port (T);
when the control valve (3) is in the first control position, the fifth port (305) turns on the fourth port (304), and the sixth port (306) turns off; when the control valve (3) is in the second control position, the fourth port (304) is connected to the sixth port (306), and the fifth port (305) is disconnected.
6. The accumulator charge integration valve of claim 5, wherein: the pipeline of the second port (205) connected with the oil outlet (A) is connected with a one-way valve (4) in series, the liquid inlet end of the one-way valve (4) is connected with the second port (205), and the liquid outlet end of the one-way valve is connected with the oil outlet (A).
7. The accumulator charge integration valve of claim 5, wherein: in the first working position and the second working position, a throttling structure (5) is arranged on a pipeline of the first port (204) connected with the second port (205); and a throttling structure (5) is arranged on a pipeline of the second control port (203) communicated with the fourth port (304).
8. The accumulator charge integration valve of claim 6, wherein: the main valve body (1) is provided with a first pressure measuring port (MS), a second pressure measuring port (MA) and a load feedback oil port (LS), the first pressure measuring port (MS) is communicated with a pipeline between the bypass port (S) and the third port (206), the second pressure measuring port (MA) is communicated with a pipeline between the one-way valve (4) and the oil outlet (A), and the load feedback oil port (LS) is communicated with a pipeline between the second control port (203) and the fourth port (304).
9. The accumulator charge integration valve of claim 4, wherein: the valve is characterized in that a first adjusting cap (6) for adjusting the precompression amount of the first spring (202) and a second adjusting cap (7) for adjusting the precompression amount of the second spring (302) are connected to the outer wall of the main valve body (1) in a threaded mode, the first spring (202) is abutted between the first adjusting cap (6) and the valve core of the reversing valve (2), and the second spring (302) is abutted between the second adjusting cap (7) and the valve core of the control valve (3).
10. The accumulator charge integration valve of claim 1, wherein: the reversing valve (2) and the control valve (3) are both hydraulically-controlled two-position three-way reversing valves, and the main valve body (1) is manufactured by adopting a profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726234.3A CN116771747A (en) | 2023-06-19 | 2023-06-19 | Accumulator liquid filling integrated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726234.3A CN116771747A (en) | 2023-06-19 | 2023-06-19 | Accumulator liquid filling integrated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116771747A true CN116771747A (en) | 2023-09-19 |
Family
ID=88009331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310726234.3A Pending CN116771747A (en) | 2023-06-19 | 2023-06-19 | Accumulator liquid filling integrated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116771747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118793659A (en) * | 2024-09-13 | 2024-10-18 | 潍柴雷沃智慧农业科技股份有限公司 | A load sensing system filling valve and tractor |
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2023
- 2023-06-19 CN CN202310726234.3A patent/CN116771747A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118793659A (en) * | 2024-09-13 | 2024-10-18 | 潍柴雷沃智慧农业科技股份有限公司 | A load sensing system filling valve and tractor |
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