CN108194446B - Multi-station hydraulic signal control type oil way conversion linkage device - Google Patents
Multi-station hydraulic signal control type oil way conversion linkage device Download PDFInfo
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- CN108194446B CN108194446B CN201810148437.8A CN201810148437A CN108194446B CN 108194446 B CN108194446 B CN 108194446B CN 201810148437 A CN201810148437 A CN 201810148437A CN 108194446 B CN108194446 B CN 108194446B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 239000003921 oil Substances 0.000 claims description 141
- 239000010720 hydraulic oil Substances 0.000 claims description 35
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001960 triggered effect 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/783—Sequential control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a multi-station hydraulic signal control type oil way conversion linkage device which comprises a plurality of hydraulic cylinders, wherein a remote hydraulic signal switch is arranged on the stroke of a piston rod of each hydraulic cylinder, an oil way switch conversion control device is respectively arranged on each hydraulic cylinder to control the action of the cylinder, the oil way switch conversion control device comprises a channel switch valve and a reversing valve, a plurality of switch valve state conversion interfaces are arranged on the channel switch valve, and an output port of each remote hydraulic signal switch is connected with the switch valve state conversion interfaces. The oil way switching linkage device is based on the oil way switching control device, and a plurality of switch valve state changing interfaces connected with the remote hydraulic signal switch output ports are arranged on the oil way switching control device, so that the condition that the switch valve core is driven to act at different stations and multiple stations can occur, and a more complex action sequence is realized among a plurality of hydraulic cylinders.
Description
Technical Field
The invention relates to the field of hydraulic control systems, in particular to a multi-station hydraulic signal control type oil way conversion linkage device.
Background
The invention patent (201310413960.6) based on a multi-path hydraulic control valve discloses a linkage device applied to a steel bar bending machine, which is based on the multi-path hydraulic control valve, wherein the multi-path hydraulic control valve is provided with a switching valve core and a reversing valve core, and can switch different hydraulic cylinders to supply oil and control the reversing of the hydraulic cylinders, so that the automatic bending of the steel bar under hydraulic control can be realized. However, when the multi-way hydraulic control valve controls the hydraulic oil cylinder to act, the whole action flow (including reversing) of the oil cylinder is required to be completed to switch the oil cylinder, and occasions with more complex requirements on the action sequence of the hydraulic oil cylinder cannot be met.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the multi-station hydraulic signal control type oil way conversion linkage device, which can realize more complex action sequences among a plurality of hydraulic cylinders, improve the use effect and increase the application range.
The technical scheme adopted by the invention is as follows:
the multi-station hydraulic signal control type oil way switching linkage device is characterized by comprising a plurality of hydraulic cylinders, wherein a remote hydraulic signal switch is arranged on the stroke of a piston rod of each hydraulic cylinder, each hydraulic cylinder is respectively provided with an oil way switch switching control device for controlling the action of the cylinder,
the oil way switch conversion control device comprises a passage switch valve and a reversing valve, wherein valve cavities of the passage switch valve and the reversing valve are communicated through a first oil passage,
a switch valve core is arranged in a valve cavity of the passage switch valve, a hydraulic oil inlet and a hydraulic oil outlet are arranged on the passage switch valve, the hydraulic oil inlet is connected with a hydraulic oil outlet of an oil pump or a switching control device of an upper-stage oil way, the hydraulic oil outlet is connected with a hydraulic oil inlet of an oil tank or a switching control device of a lower-stage oil way, the switch valve core acts to enable the hydraulic oil inlet to be switched and connected between a first oil passage and the hydraulic oil outlet,
a reversing valve core is arranged in a valve cavity of the reversing valve, an A oil port, a B oil port and more than one oil discharge port are arranged on the reversing valve, the A oil port and the B oil port are respectively connected with two ports of the hydraulic cylinder, the reversing valve core acts to enable a first oil passage to be switched and connected between the A oil port and the B oil port, when any one of the A oil port and the B oil port is connected with the first oil passage, the other oil port is connected with the oil discharge port,
the valve is characterized in that a plurality of switch valve state change interfaces are further arranged on the passage switch valve, the switch valve state change interfaces are arranged at the front part and the rear part of the switch valve core, and an output port of the remote hydraulic signal switch is connected with the switch valve state change interfaces.
The oil way switching linkage device is based on the oil way switch switching control device, and can be arranged at different stations and under the condition that a valve core of a multi-station driving switch acts according to the installation position of a remote hydraulic signal switch through a plurality of switch valve state switching interfaces connected with the output port of the remote hydraulic signal switch on the oil way switch switching control device, so that more complex action sequences among a plurality of hydraulic cylinders are realized.
As a further improvement of the technical scheme, a push rod is arranged in the valve cavity of the passage switch valve, and the push rod is positioned between two adjacent switch valve state change interfaces. The hydraulic fluid entering from the state change interface of the switch valve can push the push rod first, and then the push rod pushes the switch valve core to act. The push rod can conveniently realize multi-station control, and can be separated from the switch valve core, so that the production difficulty of the switch valve core is reduced.
As a further improvement of the technical scheme, the push rod and the switch valve core are integrally arranged, and accessories are reduced.
As a further improvement of the technical scheme, the reversing valve is provided with a reversing valve state changing interface, and hydraulic fluid entering from the reversing valve state changing interface pushes the reversing valve core to act.
As a further improvement of the technical scheme, the passage-borrowing switching valve and the reversing valve are integrally arranged.
As a further improvement of the technical scheme, the oil way switch conversion control device comprises a unidirectional linkage arm, a rotating shaft is arranged in the middle of the unidirectional linkage arm, and two ends of the unidirectional linkage arm correspond to the extending ends of the switch valve core and the reversing valve core respectively.
As a further improvement of the technical scheme, two remote hydraulic signal switches are arranged on the piston rod stroke of each hydraulic cylinder, and the remote hydraulic signal switches are respectively arranged at two ends of the piston rod stroke.
The beneficial effects of the invention are as follows:
compared with the prior art, the multi-station hydraulic signal control type oil way conversion linkage device provided by the invention is simpler in structure, more complex action sequences among a plurality of hydraulic cylinders can be realized, the use effect is improved, and the application range is increased.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic view of an internal oil passage of an oil passage switching control device.
Fig. 2 is a schematic perspective view of the oil passage switch switching control device of fig. 1.
Fig. 3 is a schematic connection diagram of a preferred oil circuit switching linkage of the present invention.
Fig. 4-11 are various operational state diagrams of the oil circuit switching linkage of fig. 3.
Fig. 12 is an oil circuit schematic diagram of an oil circuit switching linkage applied to a five-bend bar bending machine.
Fig. 13 is a schematic view of the reinforcing bar hoop bending machine of fig. 12.
Fig. 14 is a schematic view of an internal oil passage of another oil passage switch changeover control device.
Detailed Description
The invention provides an embodiment of a multi-station hydraulic signal control type oil circuit conversion linkage device for explanation.
Referring to fig. 1 and 2, the oil circuit switching linkage device of the present invention is based on an oil circuit switching control device, and fig. 1 and 2 provide a preferred embodiment of the oil circuit switching control device, which includes a passage switching valve 1 and a reversing valve 2, wherein valve cavities of the passage switching valve 1 and the reversing valve 2 are communicated through a first oil passage 3, and preferably, the passage switching valve 1 and the reversing valve 2 are integrally arranged. A switching valve core 11 is arranged in a valve cavity of the passage switching valve 1, a hydraulic oil inlet 12 and a hydraulic oil outlet 13 are arranged on the passage switching valve 1, and the switching valve core 11 acts to enable the hydraulic oil inlet 12 to be switched and connected between the first oil passage 3 and the hydraulic oil outlet 13. The reversing valve is characterized in that a reversing valve core 21 is arranged in a valve cavity of the reversing valve 2, an A oil port, a B oil port and more than one oil discharge port O are arranged on the reversing valve 2, the A oil port and the B oil port are respectively connected with two ports of the hydraulic cylinder, the reversing valve core 21 acts to enable the first oil duct 3 to be switched between the A oil port and the B oil port, and when any one of the A oil port or the B oil port is connected with the first oil duct, the other one is connected with the oil discharge port O.
In this embodiment, the passage-borrowing switching valve 1 is further provided with three switching valve status changing interfaces 14, 15, 16, wherein the first switching valve status changing interface 14 is disposed at the front portion of the switching valve core 11, and the second switching valve status changing interface 15 and the third switching valve status changing interface 16 are disposed at the rear portion of the switching valve core 11. Further, a push rod 17 is arranged in the valve cavity between the second switching valve state changing interface 15 and the third switching valve state changing interface 16, and a gap communicated with the second switching valve state changing interface 15 is reserved between the push rod 17 and the switching valve core 11. In this embodiment, the push rod 17 is disposed separately from the switch valve 11, and in other embodiments, the push rod 17 may be integrally disposed on the switch valve 11. The hydraulic fluid entering from the first switch valve state conversion interface 14 can push the switch valve core 11 to retract, the hydraulic fluid entering from the second switch valve state conversion interface 15 can push the switch valve core 11 to extend, and the hydraulic fluid entering from the third switch valve state conversion interface 16 firstly pushes the push rod, and then the push rod pushes the switch valve core to extend. Through the above plurality of switching valve state change interfaces 14, 15, 16, the operation of the multi-station control switching valve element 11 can be realized, thereby realizing more complicated oil path control.
Further, the reversing valve 2 is provided with a reversing valve state changing port 22, and hydraulic fluid entering from the reversing valve state changing port 22 pushes the reversing valve core 21 to act.
Further, the oil way switch conversion control device is further provided with a unidirectional linkage arm 4, a rotating shaft 41 is arranged in the middle of the unidirectional linkage arm 4, and two ends of the unidirectional linkage arm 4 respectively correspond to the switch valve core 11 and the reversing valve core 21. When the switch valve core 11 stretches out, the unidirectional linkage arm 4 is pushed to enable the unidirectional linkage arm 4 to rotate, the push reversing valve core 21 is retracted, the state of the reversing valve core 21 is changed, linkage is achieved, linkage between the passage switch valve 1 and the reversing valve 2 can be achieved through the unidirectional linkage arm 4, connection of oil pipes is reduced, and device structure is simplified.
Referring to fig. 3, fig. 3 provides a simple version of a multi-station hydraulic signal controlled oil circuit switching linkage employing two hydraulic cylinders to illustrate the operation of the present invention. The oil circuit switching linkage device comprises a first hydraulic cylinder 101 and a second hydraulic cylinder 105, wherein two remote hydraulic signal switches 102 and 103 are arranged on the piston rod stroke of the first hydraulic cylinder 101, two remote hydraulic signal switches 106 and 107 are also arranged on the piston rod stroke of the second hydraulic cylinder 105, the second hydraulic cylinder 105 is connected with an oil circuit switching control device 108 of the embodiment, the first hydraulic cylinder 1001 is connected with a simplified version of switching control device 104, and the oil circuit connection is referred to in fig. 3. The hydraulic oil inlet of the oil way switch conversion control device 108 is connected with the hydraulic oil outlet of the oil pump or the upper-stage oil way switch conversion control device, the hydraulic oil outlet of the oil way switch conversion control device 108 is connected with the hydraulic oil inlet or the oil tank of the lower-stage oil way switch conversion control device, the oil way trend of the oil way switch conversion control device 108 is controlled by the switch valve core, and the connected second hydraulic oil cylinder 105 is supplied with oil through the reversing valve, or the switch conversion control device 104 is supplied with oil by the aid of the hydraulic oil outlet; the three switch valve state change interfaces of the oil way switch change-over control device 108 are respectively connected with three remote hydraulic signal switches, so that the state of the switch valve core can be changed under the condition of different stations.
Referring to fig. 4 to 11, fig. 4 to 11 are schematic views showing respective operation states of the oil passage switching linkage. As shown in fig. 4, after the oil passage switching linkage is started, the oil pump supplies oil to the second hydraulic cylinder 105 through the oil passage switching control device 108, so that the piston rod of the second hydraulic cylinder 105 extends. As shown in fig. 5, the piston of the second hydraulic cylinder 105 triggers the remote hydraulic signal switch 106, hydraulic oil passes through the remote hydraulic signal switch 106 to reach a switch valve state conversion interface at the rear of the oil path switch conversion control device 108, changes the state of the switch valve core, and synchronously changes the state of the reversing valve core through the unidirectional linkage arm 4, and hydraulic oil passing through the remote hydraulic signal switch 106 further changes the state of the switch valve core of the switch conversion control device 104. As shown in fig. 6, the oil pump supplies oil to the switching control device 104 by the oil passage switching control device 108, and drives the first hydraulic cylinder 101 to act so as to extend the piston rod. Fig. 7 and 8 show that the first hydraulic cylinder 101 triggers the remote hydraulic signal switch 102 to change the state of the reversing valve of the switch changeover control device 104, and the first hydraulic cylinder 101 reverses the direction. Fig. 9 shows the switching valve change states of the switching control device 104 and the oil passage switching control device 108 after the first hydraulic cylinder 101 triggers the remote hydraulic signal switch 103. Fig. 10 shows the resetting of the reversing action of the second hydraulic cylinder 105. Fig. 11 shows that after the second hydraulic cylinder 105 is reset, the remote hydraulic signal switch 107 is triggered, the switch valve state of the oil path switch switching control device 108 is changed again, and hydraulic oil can be discharged by the oil path switch switching control device 108 and the switch switching control device 104 in sequence, or oil can be supplied to the switch switching control device of the next stage.
The working state shown in fig. 4 to 11 shows that the multi-station hydraulic signal control type oil circuit switching linkage device controls an oil circuit through the oil circuit switch switching control device, so that more complex action sequences among a plurality of hydraulic cylinders can be realized, for example, after the piston rod of the illustrated second hydraulic cylinder 105 extends out, the action of the next-stage cylinder can be controlled according to the condition, and then the piston rod of the second hydraulic cylinder 105 is reset. Compared with the multipath hydraulic control valve in the prior art, the oil way switch conversion control device adopted by the invention has simpler structure, stronger realized function and wider application range. The arrangement of the unidirectional linkage arm can reduce the connection of oil pipes as much as possible, and further simplify the structure of the whole machine.
The above-mentioned fig. 3 to 11 show only one embodiment of the present invention, and the present invention can be applied to a machine using a hydraulic control system for complex control, such as the bar bender shown in fig. 12 and 13, and can replace expensive and less stable electric control machine in most working situations. As shown in fig. 12, the multiple oil way switch switching control devices can realize the complex sequence of the five bends, so that the steel bar bending machine automatically completes all the actions of the steel bar bending hoop.
Referring to fig. 14, the present invention further provides another oil way switch conversion control device, which includes an integrated passage switch valve 1 and a reversing valve 2, wherein valve cavities of the passage switch valve 1 and the reversing valve 2 are communicated through a first oil passage 3. A switching valve core 11 is arranged in a valve cavity of the passage switching valve 1, a hydraulic oil inlet 12 and a hydraulic oil outlet 13 are arranged on the passage switching valve 1, and the switching valve core 11 acts to enable the hydraulic oil inlet 12 to be switched and connected between the first oil passage 3 and the hydraulic oil outlet 13. The reversing valve is characterized in that a reversing valve core 21 is arranged in a valve cavity of the reversing valve 2, an A oil port, a B oil port and more than one oil discharge port O are arranged on the reversing valve 2, the A oil port and the B oil port are respectively connected with two ports of the hydraulic cylinder, the reversing valve core 21 acts to enable the first oil duct 3 to be switched between the A oil port and the B oil port, and when any one of the A oil port or the B oil port is connected with the first oil duct, the other one is connected with the oil discharge port O. The difference between this embodiment and the first embodiment is that the channel switch valve 1 is further provided with five switch valve state conversion interfaces 14, 14', 15', 16, two push rods 17, 17', and two push rods 17, 17' which are distributed in multiple stages, and the oil channel switch conversion control device shown in fig. 14 can realize more multi-station control compared with the oil channel switch conversion control device shown in fig. 1, so as to realize more powerful functions in cooperation with the oil channel conversion linkage device.
The above is only a preferred embodiment of the present invention, and the technical solutions for achieving the object of the present invention by substantially the same means are all within the scope of protection of the present invention.
Claims (4)
1. The multi-station hydraulic signal control type oil way switching linkage device is characterized by comprising a plurality of hydraulic cylinders, wherein a remote hydraulic signal switch is arranged on the stroke of a piston rod of each hydraulic cylinder, each hydraulic cylinder is respectively provided with an oil way switch switching control device for controlling the action of the cylinder,
the oil way switch conversion control device comprises a passage switch valve and a reversing valve, wherein valve cavities of the passage switch valve and the reversing valve are communicated through a first oil passage,
a switch valve core is arranged in a valve cavity of the passage switch valve, a hydraulic oil inlet and a hydraulic oil outlet are arranged on the passage switch valve, the hydraulic oil inlet is connected with a hydraulic oil outlet of an oil pump or a switching control device of an upper-stage oil way, the hydraulic oil outlet is connected with a hydraulic oil inlet of an oil tank or a switching control device of a lower-stage oil way, the switch valve core acts to enable the hydraulic oil inlet to be switched and connected between a first oil passage and the hydraulic oil outlet,
a reversing valve core is arranged in a valve cavity of the reversing valve, an A oil port, a B oil port and more than one oil discharge port are arranged on the reversing valve, the A oil port and the B oil port are respectively connected with two ports of the hydraulic cylinder, the reversing valve core acts to enable a first oil passage to be switched and connected between the A oil port and the B oil port, when any one of the A oil port and the B oil port is connected with the first oil passage, the other oil port is connected with the oil discharge port,
the switching valve is characterized in that a plurality of switching valve state changing interfaces are further arranged on the channel-borrowing switching valve, the switching valve state changing interfaces are arranged at the front part and the rear part of the switching valve core, a reversing valve state changing interface is arranged on the reversing valve, hydraulic fluid entering from the reversing valve state changing interface pushes the reversing valve core to act, and an output port of the remote hydraulic signal switch is connected with the switching valve state changing interface and the reversing valve state changing interface;
a push rod is arranged in the valve cavity of the passage switching valve, and the push rod is positioned between two adjacent switching valve state change interfaces;
the oil way switch conversion control device comprises a unidirectional linkage arm, a rotating shaft is arranged in the middle of the unidirectional linkage arm, and two ends of the unidirectional linkage arm correspond to the extending ends of the switch valve core and the reversing valve core respectively.
2. The multi-station hydraulic signal controlled oil circuit switching linkage according to claim 1, wherein: the push rod and the switch valve core are integrally arranged.
3. The multi-station hydraulic signal controlled oil circuit switching linkage according to claim 1, wherein: the passage-borrowing switching valve and the reversing valve are integrally arranged.
4. The multi-station hydraulic signal controlled oil circuit switching linkage according to claim 1, wherein: two remote hydraulic signal switches are arranged on the piston rod stroke of each hydraulic cylinder, and the remote hydraulic signal switches are respectively arranged at two ends of the piston rod stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148437.8A CN108194446B (en) | 2018-02-13 | 2018-02-13 | Multi-station hydraulic signal control type oil way conversion linkage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148437.8A CN108194446B (en) | 2018-02-13 | 2018-02-13 | Multi-station hydraulic signal control type oil way conversion linkage device |
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| Publication Number | Publication Date |
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| CN108194446A CN108194446A (en) | 2018-06-22 |
| CN108194446B true CN108194446B (en) | 2024-03-19 |
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| CN201810148437.8A Active CN108194446B (en) | 2018-02-13 | 2018-02-13 | Multi-station hydraulic signal control type oil way conversion linkage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI760042B (en) * | 2020-12-31 | 2022-04-01 | 台灣樸緻股份有限公司 | Filtering apparatus and disassembling method therefor |
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| CN2760312Y (en) * | 2004-11-10 | 2006-02-22 | 冯广建 | A combination valve with knocking type linkage for hydraulic bending machine |
| CN102620010A (en) * | 2011-01-31 | 2012-08-01 | 江苏正本净化节水科技实业有限公司 | Two-position multi-ported valve |
| CN103727086A (en) * | 2014-01-20 | 2014-04-16 | 南京工程学院 | Hydraulically-controlled proportional valve |
| CN206647335U (en) * | 2017-02-16 | 2017-11-17 | 冯广建 | A kind of hydraulic control system of Stroke Control |
| CN107387473A (en) * | 2017-08-16 | 2017-11-24 | 冯广建 | Tandem piggybacking formula multipath hydraulic control device |
| CN107457334A (en) * | 2016-06-03 | 2017-12-12 | 冯广建 | Fluid pressure type wire rod automatic gauging cutting mechanism |
| CN208010687U (en) * | 2018-02-13 | 2018-10-26 | 冯广建 | Multi-station hydraulic signal controls formula oil circuit conversion link |
-
2018
- 2018-02-13 CN CN201810148437.8A patent/CN108194446B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760312Y (en) * | 2004-11-10 | 2006-02-22 | 冯广建 | A combination valve with knocking type linkage for hydraulic bending machine |
| CN102620010A (en) * | 2011-01-31 | 2012-08-01 | 江苏正本净化节水科技实业有限公司 | Two-position multi-ported valve |
| CN103727086A (en) * | 2014-01-20 | 2014-04-16 | 南京工程学院 | Hydraulically-controlled proportional valve |
| CN107457334A (en) * | 2016-06-03 | 2017-12-12 | 冯广建 | Fluid pressure type wire rod automatic gauging cutting mechanism |
| CN206647335U (en) * | 2017-02-16 | 2017-11-17 | 冯广建 | A kind of hydraulic control system of Stroke Control |
| CN107387473A (en) * | 2017-08-16 | 2017-11-24 | 冯广建 | Tandem piggybacking formula multipath hydraulic control device |
| CN208010687U (en) * | 2018-02-13 | 2018-10-26 | 冯广建 | Multi-station hydraulic signal controls formula oil circuit conversion link |
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| CN108194446A (en) | 2018-06-22 |
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