CN108571488B - Pulse type hydraulic partial pressure synchronous valve - Google Patents
Pulse type hydraulic partial pressure synchronous valve Download PDFInfo
- Publication number
- CN108571488B CN108571488B CN201710145351.5A CN201710145351A CN108571488B CN 108571488 B CN108571488 B CN 108571488B CN 201710145351 A CN201710145351 A CN 201710145351A CN 108571488 B CN108571488 B CN 108571488B
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- oil port
- valve
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- port
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 26
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 abstract description 199
- 239000010720 hydraulic oil Substances 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more 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
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
Abstract
The invention discloses a pulse type hydraulic pressure partial pressure synchronous valve, which comprises a valve body, a first valve group and a second valve group, wherein the valve body is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port, the first oil port is communicated with the third oil port and the fourth oil port through oil channels in the valve body, the second oil port is communicated with the fifth oil port and the sixth oil port through oil channels in the valve body, the first valve group is connected in series between the first oil port and the fourth oil port, the second valve group is connected in series between the second oil port and the fifth oil port, the first valve group and the second valve group respectively comprise a flow dividing valve and a reflux valve, and the flow dividing valve and the reflux valve are connected in parallel. According to the flow required by the execution elements, the synchronous valve can keep the two execution elements to synchronously operate by dividing the hydraulic oil of the hydraulic pulse, and is not influenced by the volume ratio of the execution elements and the length of the pipe fitting.
Description
Technical Field
The invention relates to a pulse type hydraulic partial pressure synchronous valve.
Background
The synchronous valve is used for enabling the same hydraulic power source to supply equal flow to more than two execution elements in the hydraulic system or to supply proportional flow to the two execution elements according to a certain proportion so as to achieve that the action speeds of the execution elements are kept synchronous or in a constant ratio relation. However, when the hydraulic power source is a manual pressure lever pump, the provided hydraulic power source is in the form of pulse waves, and under the condition that the volumes of the two actuating elements are relatively large, a small part of hydraulic oil is required to be split, and the traditional splitter valve or the synchronous valve cannot be realized at all. Thus, synchronizing relatively large volume actuators remains a difficult problem in current hydraulic systems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pulse type hydraulic pressure partial pressure synchronous valve, which is used for dividing the high-pressure part of hydraulic pulse according to the flow required by an executive component, directly inputting most hydraulic oil into the hydraulic executive component with larger volume, inputting the flow of the high-pressure division into the other executive component, keeping the two executive components to synchronously operate, and being free from the limitation of the volume ratio of the executive components and the influence of the length of a pipe fitting.
In order to solve the technical problems, the pulse type hydraulic pressure dividing synchronous valve comprises a valve body, a first valve group and a second valve group, wherein the valve body is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port, the first oil port is respectively communicated with the third oil port and the fourth oil port through oil channels in the valve body, the second oil port is respectively communicated with the fifth oil port and the sixth oil port through oil channels in the valve body, the first valve group is connected between the first oil port and the fourth oil port in series, the second valve group is connected between the second oil port and the fifth oil port in series, and the first valve group and the second valve group both comprise a flow dividing valve and a reflux valve which are connected in parallel; the first oil port and the second oil port are respectively connected with an oil port of a hydraulic power source, the third oil port and the sixth oil port are respectively connected with an opening and closing oil port of a first execution element, the fourth oil port and the fifth oil port are respectively connected with an opening and closing oil port of a second execution element, and the opening pressure of the diverter valve is adjusted according to the volume ratio of the first execution element to the second execution element; when the pulse high-pressure oil provided by the manual pressure lever pump serving as a hydraulic power source enters the valve body from the first oil port, the pulse high-pressure oil is divided into two paths, one path of the pulse high-pressure oil directly flows out from the third oil port and enters the CL end of the first executing element, the partial oil with the set pressure greater than that of the flow dividing valve opens the flow dividing valve and enters the CL end of the second executing element, and the first executing element and the second executing element start to operate.
Further, the diverter valves of the first valve bank and the second valve bank respectively comprise a first valve seat, a first valve core, a mandrel, a first spring and a lock nut, two first counter bores are arranged at intervals on one side of the valve body and respectively communicated with an oil passage of the first oil port communicated with the fourth oil port and an oil passage of the second oil port communicated with the fifth oil port, the first valve seat is respectively arranged in the two first counter bores, the first valve core is arranged in the first valve seat and respectively opens or closes the oil passage of the first oil port communicated with the fourth oil port and the oil passage of the second oil port communicated with the fifth oil port, the mandrel is arranged in the first valve seat and is in threaded connection, the first spring is arranged in the first valve seat, two ends of the first spring respectively abut against the end face of the mandrel and the end face of the first valve core, and the lock nut is screwed on the external threads of the mandrel and is positioned outside the valve body; the backflow valve of the first valve bank and the second valve bank comprises a second valve seat, a second valve core, a second spring and a choke plug nut, two second counter bores are arranged at intervals on the other side of the valve body and are respectively communicated with an oil passage of the first oil port communicated with the fourth oil port and an oil passage of the second oil port communicated with the fifth oil port, the second valve seat is respectively arranged in the two second counter bores, the second valve core is arranged in the second valve seat and respectively opens or closes the oil passages of the first oil port communicated with the fourth oil port and the oil passages of the second oil port communicated with the fifth oil port, the choke plug nut is screwed on the outer end face of the second valve seat and is positioned on the outer side of the valve body, and the second spring is arranged in the second valve seat and two ends of the second spring respectively prop against the end face of the second valve core and the end face of the choke plug nut.
Because the pulse type hydraulic pressure partial pressure synchronous valve adopts the technical scheme, the synchronous valve comprises a valve body, a first valve group and a second valve group, wherein the valve body is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port, the first oil port is communicated with the third oil port and the fourth oil port through oil channels in the valve body, the second oil port is communicated with the fifth oil port and the sixth oil port through oil channels in the valve body, the first valve group is connected between the first oil port and the fourth oil port in series, the second valve group is connected between the second oil port and the fifth oil port in series, the first valve group and the second valve group respectively comprise a flow dividing valve and a reflux valve, and the flow dividing valve and the reflux valve are connected in parallel. According to the synchronous valve, according to the flow required by the execution element, the high-pressure part of the hydraulic pulse is split, most hydraulic oil directly enters the hydraulic execution element with larger volume, and meanwhile, the flow of the high-pressure split is input into the other execution element, so that the two execution elements can be kept to run synchronously, and the synchronous valve is not influenced by the limitation of the volume ratio of the execution elements and the length of the pipe fitting.
Drawings
The invention is described in further detail below with reference to the attached drawings and embodiments:
FIG. 1 is a schematic diagram of a pulse type hydraulic pressure dividing synchronous valve according to the present invention;
FIG. 2 is a schematic diagram of the structure of the present synchronous valve;
FIG. 3 is a schematic view of the F-F direction in FIG. 2;
FIG. 4 is a schematic view of the M-M direction in FIG. 2;
FIG. 5 is a schematic view in the E-E direction of FIG. 2;
Detailed Description
As shown in fig. 1, the pulse hydraulic pressure partial pressure synchronous valve of the invention comprises a valve body 1, a first valve group 2 and a second valve group 3, wherein the valve body 1 is provided with a first oil port a, a second oil port B, a third oil port A1, a fourth oil port A2, a fifth oil port B2 and a sixth oil port B1, the first oil port a is respectively communicated with the third oil port A1 and the fourth oil port A2 through oil passages in the valve body 1, the second oil port B is respectively communicated with the fifth oil port B2 and the sixth oil port B1 through oil passages in the valve body 1, the first valve group 2 is connected in series between the first oil port a and the fourth oil port A2, the second valve group 3 is connected in series between the second oil port B and the fifth oil port B2, the first valve group 2 and the second valve group 3 respectively comprise flow dividing valves 21 and 31 and reflux valves 22 and 32, and the flow dividing valves 21 and 31 are connected in parallel.
As shown in fig. 2 to 5, preferably, the diverter valves 21 and 31 of the first valve group 2 and the second valve group 3 respectively include a first valve seat 41, a first valve core 42, a mandrel 43, a first spring 44 and a lock nut 45, one side of the valve body 1 is provided with two first counter bores 11 at intervals and respectively communicated with an oil passage in which the first oil port a communicates with the fourth oil port A2 and an oil passage in which the second oil port B communicates with the fifth oil port B2, the first valve seat 41 is respectively provided in the two first counter bores 11, the first valve core 42 is provided in the first valve seat 41 and respectively opens or closes an oil passage in which the first oil port a communicates with the fourth oil port A2 and an oil passage in which the second oil port B communicates with the fifth oil port B2, the mandrel 42 is provided in the first valve seat 41 and is connected by threads, the first spring 44 is provided in the first valve seat 41 and respectively abuts against the end surface of the mandrel 43 and the end surface of the first valve body 42, and the lock nut 45 is screwed to the external threads of the mandrel 43 and is located outside the valve body 1; the backflow valves 22 and 32 of the first valve bank 2 and the second valve bank 3 comprise a second valve seat 51, a second valve core 52, a second spring 53 and a choke plug nut 54, two second counter bores 12 are arranged on the other side of the valve body 1 at intervals and are respectively communicated with an oil passage in which the first oil port A is communicated with the fourth oil port A2 and an oil passage in which the second oil port B is communicated with the fifth oil port B2, the second valve seat 51 is respectively arranged in the two second counter bores 12, the second valve core 52 is arranged in the second valve seat 51 and is respectively used for opening or closing the oil passage in which the first oil port A is communicated with the fourth oil port A2 and the oil passage in which the second oil port B is communicated with the fifth oil port B2, the choke plug nut 54 is screwed on the outer end face of the second valve seat 51 and is positioned on the outer side of the valve body 1, and the second spring 53 is arranged in the second valve seat 51 and two ends of the second valve core 52 are respectively abutted against the end face of the second valve core 52 and the end face of the choke plug nut 54.
The synchronous valve can provide hydraulic driving medium by a hydraulic power source and simultaneously drive two execution elements so as to keep the two execution elements to synchronously operate, a first oil port A and a second oil port B of the synchronous valve are respectively connected with oil ports of the hydraulic power source, a third oil port A1 and a sixth oil port B1 are respectively connected with switching oil ports of a first execution element 6, a fourth oil port A2 and a fifth oil port B2 are respectively connected with switching oil ports of a second execution element 7, and opening pressures of a flow dividing valve 21 and a flow dividing valve 32 are adjusted according to volume ratios of the first execution element 6 and the second execution element 7. When pulse high-pressure oil provided by a manual pressure lever pump serving as a hydraulic power source enters a valve body from a first oil port A and is divided into two paths, one path of the pulse high-pressure oil directly flows out from a third oil port A1 and enters the CL end of a first executing element 6, and part of the oil with the set pressure greater than that of a flow dividing valve 21 opens the flow dividing valve 21 and enters the CL end of a second executing element 7, and the first executing element 6 and the second executing element 7 start to start running; meanwhile, oil in the oil cylinders at the OP ends of the two execution elements are respectively returned to the sixth oil port B1 and the fifth oil port B2, the oil in the sixth oil port B1 directly returns to the second oil port B, the oil in the fifth oil port B2 opens the return valve 32 at the same side to return to the second oil port B, and is returned to the hydraulic power source, and the reverse operation of the execution elements is the same as that described above. The synchronous valve has the advantages of simple structure, high integration level, convenient installation, adjustable split flow according to the needs, optimal flow ratio, no influence of the length of the pipe fitting and guarantee of the action synchronism of the two hydraulic actuating elements.
When a pulse high-pressure oil source provided by a hydraulic power source enters the first oil port A, a part of hydraulic oil directly enters the CL end of the first executive component 6 through the first oil port A, an internal oil duct of the valve body and the third oil port A1 to drive the first executive component 6 to act; meanwhile, part of oil with the pressure exceeding the set pressure of the flow dividing valve 21 enters the first valve seat 41 of the flow dividing valve 21 and pushes away the first valve core 42, the first spring 44 is compressed, hydraulic oil enters the fourth oil port A2, and therefore enters the CL end of the second executing element 7 to drive the second executing element 7 to act; when the first executive component 6 and the second executive component 7 act, the oil at the other end OP needs to return, the oil at the OP end of the first executive component 6 returns to the sixth oil port B1 and directly returns to the oil tank of the hydraulic power source from the second oil port B; the OP end oil of the second actuator 7 returns to the fifth oil port B2, enters the valve seat 51 of the return valve 32, pushes the valve core 52 open, compresses the second spring 53, opens the return valve, and returns to the oil tank of the hydraulic power source through the second oil port B.
When the executive component is to run reversely, oil provided by the hydraulic power source enters from the second oil port B, and one path of oil directly enters the OP end of the first executive component 6 through the second oil port B, the internal oil duct of the valve body and the sixth oil port B1 to drive the first executive component 6 to act; meanwhile, part of the oil with the pressure exceeding the set pressure of the flow dividing valve 31 enters the first valve seat 41 of the flow dividing valve 31 and pushes the first valve core 42 open, the first spring 44 is compressed, the hydraulic oil enters the fifth oil port B2, and therefore the hydraulic oil enters the OP end of the second actuator 7 to drive the second actuator 7 to act. The CL end of the first executive component 6 and the CL end of the second executive component 7 return oil, and after the CL end oil of the first executive component 6 returns to the end of the third oil port A1, the CL end oil returns to the oil tank of the hydraulic power source directly through the internal oil duct of the valve body and the first oil port A; meanwhile, the oil at the CL end of the second actuator 7 returns to the fourth oil port A2, enters the second valve seat 51 of the return valve 22, pushes away the second valve core 52, opens the return valve 22, and returns to the oil tank of the hydraulic power source after entering the first oil port A.
The return valves 22 and 32 in the synchronous valve are substantially one-way valves, and the return valves 22 and 32 are opened only after oil enters the second valve seat 51 and pushes the second valve core 52 to overcome the acting force of the second spring 53, so that the oil return function of the executive component is realized; the diverter valves 21 and 31 realize the diverting function of the manual pressure lever pump for pulse high-pressure oil, and the adjustment of the set pressure can change the position of the mandrel 43 in the first valve seat 41 by screwing the mandrel 43, so that the pressure of the first valve core 42 pushed away is adjusted by the first spring 44, and when the oil pressure is greater than the pushing-away pressure, the oil is diverted.
The synchronous valve can drive two hydraulic actuating elements simultaneously, and the opening pressure of the valve core is changed by changing the position of the mandrel, so that the pressure distribution and the flow distribution of hydraulic oil can be adjusted, the two hydraulic actuating elements can work simultaneously or stop simultaneously, the influence of other elements such as a pipe fitting on a hydraulic system is eliminated, the action consistency of the two hydraulic actuating elements is ensured, and the synchronous valve position synchronous valve can also be used for indicating the hydraulic actuating elements and indirect synchronous valve positions.
Claims (2)
1. The utility model provides a pulsed hydraulic pressure partial pressure synchronous valve, includes valve body, its characterized in that: the valve body is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port, the first oil port is communicated with the third oil port and the fourth oil port through oil channels in the valve body respectively, the second oil port is communicated with the fifth oil port and the sixth oil port through the oil channels in the valve body respectively, the first valve group is connected between the first oil port and the fourth oil port in series, the second valve group is connected between the second oil port and the fifth oil port in series, and the first valve group and the second valve group both comprise a flow dividing valve and a reflux valve which are connected in parallel; the first oil port and the second oil port are respectively connected with an oil port of a hydraulic power source, the third oil port and the sixth oil port are respectively connected with an opening and closing oil port of a first execution element, the fourth oil port and the fifth oil port are respectively connected with an opening and closing oil port of a second execution element, and the opening pressure of the diverter valve is adjusted according to the volume ratio of the first execution element to the second execution element; when the pulse high-pressure oil provided by the manual pressure lever pump serving as a hydraulic power source enters the valve body from the first oil port, the pulse high-pressure oil is divided into two paths, one path of the pulse high-pressure oil directly flows out from the third oil port and enters the CL end of the first executing element, the partial oil with the set pressure greater than that of the flow dividing valve opens the flow dividing valve and enters the CL end of the second executing element, and the first executing element and the second executing element start to operate.
2. The pulsed hydraulic pressure partial pressure synchronization valve of claim 1, wherein: the split valves of the first valve bank and the second valve bank respectively comprise a first valve seat, a first valve core, a mandrel, a first spring and a lock nut, two first counter bores are arranged at intervals on one side of the valve body and are respectively communicated with an oil passage in which the first oil port is communicated with the fourth oil port and an oil passage in which the second oil port is communicated with the fifth oil port, the first valve seat is respectively arranged in the two first counter bores, the first valve core is arranged in the first valve seat and is respectively used for opening or closing the oil passages in which the first oil port is communicated with the fourth oil port and the oil passages in which the second oil port is communicated with the fifth oil port, the mandrel is arranged in the first valve seat and is connected with the first valve seat through threads, the first spring is arranged in the first valve seat, two ends of the first spring respectively abut against the end face of the mandrel, and the lock nut is screwed on the external threads of the mandrel and is positioned outside the valve body; the backflow valve of the first valve bank and the second valve bank comprises a second valve seat, a second valve core, a second spring and a choke plug nut, two second counter bores are arranged at intervals on the other side of the valve body and are respectively communicated with an oil passage of the first oil port communicated with the fourth oil port and an oil passage of the second oil port communicated with the fifth oil port, the second valve seat is respectively arranged in the two second counter bores, the second valve core is arranged in the second valve seat and respectively opens or closes the oil passages of the first oil port communicated with the fourth oil port and the oil passages of the second oil port communicated with the fifth oil port, the choke plug nut is screwed on the outer end face of the second valve seat and is positioned on the outer side of the valve body, and the second spring is arranged in the second valve seat and two ends of the second spring respectively prop against the end face of the second valve core and the end face of the choke plug nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145351.5A CN108571488B (en) | 2017-03-13 | 2017-03-13 | Pulse type hydraulic partial pressure synchronous valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145351.5A CN108571488B (en) | 2017-03-13 | 2017-03-13 | Pulse type hydraulic partial pressure synchronous valve |
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| Publication Number | Publication Date |
|---|---|
| CN108571488A CN108571488A (en) | 2018-09-25 |
| CN108571488B true CN108571488B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710145351.5A Active CN108571488B (en) | 2017-03-13 | 2017-03-13 | Pulse type hydraulic partial pressure synchronous valve |
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| CN (1) | CN108571488B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667802B (en) * | 2018-11-30 | 2020-06-19 | 广东轻工职业技术学院 | Hybrid control synchronous valve |
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| CN108571488A (en) | 2018-09-25 |
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