CN212985658U - Proportional speed regulating valve group - Google Patents
Proportional speed regulating valve group Download PDFInfo
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- CN212985658U CN212985658U CN202021641454.4U CN202021641454U CN212985658U CN 212985658 U CN212985658 U CN 212985658U CN 202021641454 U CN202021641454 U CN 202021641454U CN 212985658 U CN212985658 U CN 212985658U
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Abstract
The utility model relates to a proportional speed regulating valves relates to hydraulic pressure speed governing technical field, and it includes that oil circuit, first import and export and second are imported and exported, the oil circuit includes first oil circuit and second oil circuit, first import and export and first oil circuit connection, the second is imported and exported and the second oil circuit connection, first oil circuit and second oil circuit all are connected with the work component, series connection has the proportional flow valve on the first oil circuit, just the first import and export of proportional flow valve's both ends difference tube coupling and work component. This application has the working strength who reduces the staff, realizes hydraulic oil and feeds automatic effect.
Description
Technical Field
The application relates to the technical field of hydraulic speed regulation, in particular to a proportional speed regulating valve group.
Background
The speed regulating valve is an important element in a speed regulating loop, the working performance of the speed regulating valve directly affects the stability of the whole hydraulic system, most of the speed regulating valves in the current market are formed by connecting a fixed-differential pressure reducing valve and a throttle valve in series, and the speed regulation is realized by changing the flow area of a throttle orifice and controlling the pressure difference between the front and the rear of the throttle orifice.
The existing valve bank comprises a first oil way and a second oil way, wherein manual regulating valves are connected in series on the first oil way and the second oil way.
In view of the above-mentioned related technologies, hydraulic oil enters the valve body from the hydraulic output connector, the safety valve assembly is opened, the hydraulic oil enters the second cavity from the first cavity through the one-way valve piston thrust adjusting screw, and the single speed regulating valve adjusts the screw to adjust the flow rate of the hydraulic oil.
SUMMERY OF THE UTILITY MODEL
In order to improve the lower problem of degree of automation, this application provides a proportional speed governing valves.
The application provides a proportional speed control valve group adopts following technical scheme:
the utility model provides a proportional speed governing valves, includes that oil circuit, first import and export and second are imported and exported, the oil circuit includes first oil circuit and second oil circuit, first import and export are connected with first oil circuit, the second is imported and exported and the second oil circuit is connected, first oil circuit and second oil circuit all are connected with the working element, series connection has the proportional flow valve on the first oil circuit, just the first import and export of proportional flow valve's both ends difference tube coupling and work original paper.
Through adopting above-mentioned technical scheme, with the help of the feed volume of proportional flow valve control hydraulic oil, when the electric current is big more, the feed volume of hydraulic oil is big more, helps reducing staff's working strength, realizes that hydraulic oil feeds the automation.
Preferably, the proportional flow valve further comprises a valve block, the first inlet and the second outlet are both arranged on the valve block, the first oil path and the second oil path are both fixed in the valve block, and the proportional flow valve is fixed on the valve block.
By adopting the technical scheme, the first inlet and outlet, the second inlet and outlet, the first oil way, the second oil way and the proportional flow valve are integrated by means of the valve block, and the convenience of the proportional speed regulating valve is improved.
Preferably, a hydraulic lock is fixed on the valve block, the hydraulic lock comprises a first hydraulic lock and a second hydraulic lock, the first hydraulic lock is connected in series in the first oil path and communicated with the first inlet and the second outlet, and the second hydraulic lock is connected in series in the second oil path and connected with the second inlet and the second outlet through pipelines.
Through adopting above-mentioned technical scheme, when reaching required oil pressure, the staff closes the oil feed pump, with the help of first hydraulic pressure lock and second hydraulic pressure lock, helps preventing that hydraulic oil from producing the backward flow to guarantee the required pressure stability of work original paper.
Preferably, the proportional flow valve is a two-position two-way proportional flow valve, and the proportional flow valve comprises a first proportional flow valve and a second proportional flow valve.
Through adopting above-mentioned technical scheme, be two logical proportional flow valve with the help of first proportional flow valve and second proportional flow valve, when damaging on one side, can carry out hydraulic oil through another direction and feed, help improving the variety of proportional speed governing valves oil feed.
Preferably, the first proportional flow valve includes a first proportional check valve and a first proportional straight-through valve, the first proportional flow valve is connected in series in the first oil path, two ends of the first proportional flow valve are respectively connected with the first hydraulic lock and the working element through pipelines, the second proportional flow valve includes a second proportional check valve and a second proportional straight-through valve, the second proportional flow valve is connected in series in the second oil path, and two ends of the second proportional flow valve are respectively connected with the working element and the second hydraulic lock through pipelines; when the first proportional flow valve is switched to the first proportional one-way valve, the second proportional flow valve is correspondingly switched to the second proportional straight-through valve; when the second proportional flow valve is switched to the second proportional one-way valve, the first proportional flow valve is correspondingly switched to the first proportional straight-through valve.
Through adopting above-mentioned technical scheme, correspond through first proportion check valve and second proportion straight-through valve, perhaps second proportion check valve and first proportion straight-through valve correspond, help realizing proportional speed governing valves oil feed variety.
Preferably, an electromagnetic directional valve is fixed on the valve block, and the electromagnetic directional valve is a two-position two-way electromagnetic directional valve.
By adopting the technical scheme, the hydraulic oil reversing feeding is further facilitated by the electromagnetic reversing valve.
Preferably, the electromagnetic directional valve includes a first electromagnetic directional valve and a second electromagnetic directional valve, the first electromagnetic directional valve includes a first electromagnetic one-way valve and a first electromagnetic through valve, the first electromagnetic directional valve and a first proportional flow valve are connected in parallel in a first oil path, two ends of the first electromagnetic directional valve are respectively connected with a first hydraulic lock and a working element through pipelines, the second electromagnetic directional valve includes a second electromagnetic one-way valve and a second electromagnetic through valve, the second electromagnetic directional valve and a second proportional flow valve are connected in parallel in a second oil path, and two ends of the second electromagnetic directional valve are respectively connected with the working element and a second hydraulic lock through pipelines; when the first proportional flow valve is started, the second electromagnetic directional valve is correspondingly switched to the second electromagnetic one-way valve; when the second proportional flow valve is started, the first electromagnetic directional valve is correspondingly switched to the first electromagnetic one-way valve; when the first proportional flow valve and the second proportional flow valve are both closed, the first electromagnetic directional valve is switched to the first electromagnetic through valve, and the second electromagnetic directional valve is correspondingly switched to the second electromagnetic through valve.
By adopting the technical scheme, when the first proportional flow valve is started, the second electromagnetic directional valve is correspondingly switched to the second electromagnetic one-way valve, so that hydraulic oil flows to the second oil way and the second inlet and outlet through the first inlet and outlet and the first oil way; when the second proportional flow valve is started, the first electromagnetic directional valve is correspondingly switched to the first electromagnetic one-way valve, so that hydraulic oil flows to the first oil path and the first inlet and outlet through the second inlet and outlet and the second oil path; when the first proportional flow valve and the second proportional flow valve are both closed, the first electromagnetic directional valve is switched to the first electromagnetic through valve, and the second electromagnetic directional valve is correspondingly switched to the second electromagnetic through valve, so that the hydraulic oil can flow to the working element in a direct mode; the oil inlet diversity of the proportional speed regulating valve is further facilitated.
Preferably, a flow valve is fixed on the valve block, the flow valve and the working element are connected between the first oil path and the second oil path in parallel, and two ends of the flow valve are respectively connected with the first hydraulic lock and the second hydraulic lock.
Through adopting above-mentioned technical scheme, when proportional flow valve is in the outage state, with the help of the flow valve, the staff can manually carry out the velocity of flow and adjust.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the feeding amount of the hydraulic oil is controlled by means of the proportional flow valve, and when the current is larger, the feeding amount of the hydraulic oil is larger, so that the working intensity of workers is reduced, and the hydraulic oil feeding automation is realized;
2. the first proportional one-way valve corresponds to the second proportional straight-through valve, or the second proportional one-way valve corresponds to the first proportional straight-through valve, so that the oil inlet diversity of the proportional speed regulating valve bank is realized;
3. when the first proportional flow valve is started, the second electromagnetic directional valve is correspondingly switched to the second electromagnetic one-way valve, so that hydraulic oil flows to the second oil path and the second inlet and outlet through the first inlet and outlet and the first oil path; when the second proportional flow valve is started, the first electromagnetic directional valve is correspondingly switched to the first electromagnetic one-way valve, so that hydraulic oil flows to the first oil path and the first inlet and outlet through the second inlet and outlet and the second oil path; when the first proportional flow valve and the second proportional flow valve are both closed, the first electromagnetic directional valve is switched to the first electromagnetic through valve, and the second electromagnetic directional valve is correspondingly switched to the second electromagnetic through valve, so that the hydraulic oil can flow to the working element in a direct mode; the oil inlet diversity of the proportional speed regulating valve is further facilitated.
Drawings
FIG. 1 is a schematic axial view of the overall structure of a proportional speed control valve assembly according to an embodiment of the present application;
fig. 2 is a schematic diagram mainly showing an oil path structure of the proportional speed control valve assembly in the embodiment;
fig. 3 is a bottom view of the proportional governor valve assembly of the present embodiment.
Reference numerals: 1. a valve block; 11. a first inlet/outlet; 12. a second inlet/outlet; 13. a first oil outlet; 14. a second oil outlet; 2. an oil path; 21. a first oil passage; 22. a second oil passage; 3. a proportional flow valve; 31. a first proportional flow valve; 311. a first proportional check valve; 312. a first proportional straight valve; 32. a second proportional flow valve; 321. a second proportional check valve; 322. a second proportional straight through valve; 4. hydraulic locking; 41. a first hydraulic lock; 42. a second hydraulic lock; 5. an electromagnetic directional valve; 51. a first electromagnetic directional valve; 511. a first electromagnetic check valve; 512. a first electromagnetic straight-through valve; 52. a second electromagnetic directional valve; 521. a second electromagnetic check valve; 522. a second electromagnetic straight-through valve; 6. a flow valve.
Detailed Description
The embodiment of the application discloses proportional speed regulating valve group.
Referring to fig. 1 and 2, the proportional governor valve group includes a valve block 1 and an oil passage 2, the valve block comprises a first inlet and outlet 11 and a second inlet and outlet 12, the first inlet and outlet 11 and the second inlet and outlet 12 are both arranged on the same side wall of the valve block 1, an oil path 2 comprises a first oil path 21 and a second oil path 22, the first inlet and outlet 11 is connected with the first oil path 21, the first oil path 21 and the second oil path 22 are both fixed in the valve block 1, the second inlet and outlet 12 is connected with the second oil path 22, the first oil path 21 and the second oil path 22 are respectively communicated with a first oil outlet 13 and a second oil outlet 14, the first oil outlet 13 is arranged on the side wall of any adjacent first inlet and outlet 11 side of the valve block 1, the second oil outlet 14 is arranged on the side wall of the valve block 1 departing from the first oil outlet 13 side and is connected with a working element, a proportional flow valve 3 is connected in series on the first oil path 21, and two ends of the proportional flow valve 3 are respectively connected with the first.
In actual work, a worker opens the proportional flow valve 3, under the action of the proportional flow valve 3, hydraulic oil passes through the first inlet and outlet 11, the first oil path 21, the proportional flow valve 3, the first oil path 21 and the first oil outlet 13, the proportional speed regulating valve group supplies oil to a working element, and the hydraulic oil returns to the oil storage cylinder through the second oil outlet 14, the second oil path 22 and the second inlet and outlet 12. And the feeding amount of the hydraulic oil to the working element can be regulated and controlled by regulating the current of the proportional speed regulating valve group.
Referring to fig. 2 and 3, a hydraulic lock 4 is fixed on the valve block 1, the hydraulic lock 4 includes a first hydraulic lock 41 and a second hydraulic lock 42, the first hydraulic lock 41 and the second hydraulic lock 42 are both fixed on a side wall of any adjacent first inlet/outlet 11 side of the valve block 1 and on a side wall of any adjacent first outlet/outlet 13 side, the first hydraulic lock 41 is connected in series in the first oil path 21 and is communicated with the first inlet/outlet 11, and the second hydraulic lock 42 is connected in series in the second oil path 22 and is connected with the second inlet/outlet 12 through a pipeline.
When the required oil pressure is reached, the oil inlet pump is closed by a worker, and the pressure of a working element is not enough due to the fact that hydraulic oil flows back through the first hydraulic lock 41 and the second hydraulic lock 42.
Proportional flow valve 3 is two lead to proportional flow valve, and proportional flow valve 3 includes first proportional flow valve 31 and second proportional flow valve 32, and first proportional flow valve 31 and second proportional flow valve 32 are all fixed on the valve block 1 deviates from one side lateral wall of first hydraulic lock 41 and second hydraulic lock 42. The first proportional flow valve 31 includes a first proportional check valve 311 and a first proportional through valve 312, the first proportional flow valve 31 is connected in series in the first oil passage 21, and both ends of the first proportional flow valve 31 are respectively connected with the first hydraulic lock 41 and the working element through a pipeline, the second proportional flow valve 32 includes a second proportional check valve 321 and a second proportional through valve 322, the second proportional flow valve 32 is connected in series in the second oil passage 22, and both ends of the second proportional flow valve 32 are respectively connected with the working element and the second hydraulic lock 42 through a pipeline.
In actual work, a worker controls the feeding amount of the hydraulic oil by using the proportional flow valve 3. When the staff switches the first proportional flow valve 31 to the first proportional one-way valve 311, the second proportional flow valve 32 is correspondingly switched to the second proportional straight-through valve 322; when the staff switches the second proportional flow valve 32 to the second proportional one-way valve 321, the first proportional flow valve 31 is correspondingly switched to the first proportional straight-through valve 312.
The valve block 1 is provided with an electromagnetic directional valve 5, the electromagnetic directional valve 5 is a two-position two-way electromagnetic directional valve, the electromagnetic directional valve 5 comprises a first electromagnetic directional valve 51 and a second electromagnetic directional valve 52, the first electromagnetic directional valve 51 and the second electromagnetic directional valve 52 are both fixed on the side wall of the valve block 1 at one side of the first proportional flow valve 31 and the second proportional flow valve 32, the first electromagnetic directional valve 51 comprises a first electromagnetic one-way valve 511 and a first electromagnetic through valve 512, the first electromagnetic directional valve 51 and the first proportional flow valve 31 are connected in parallel in the first oil path 21, and two ends of the first electromagnetic directional valve 51 are respectively connected with the first hydraulic lock 41 and the working element by pipelines, the second electromagnetic directional valve 52 comprises a second electromagnetic one-way valve 521 and a second electromagnetic through valve 522, the second electromagnetic directional valve 52 and the second proportional flow valve 32 are connected in parallel in the second oil path 22, and two ends of the second electromagnetic directional valve 52 are respectively connected with the working element and the second hydraulic lock 42 through pipelines.
In actual work, a worker controls the feeding amount of the hydraulic oil by using the proportional flow valve 3. When a worker starts the first proportional flow valve 31, the worker opens the second electromagnetic directional valve 52 and correspondingly switches the second electromagnetic one-way valve 521, so that hydraulic oil flows to the second oil outlet 14, the second oil path 22 and the second inlet and outlet 12 through the first inlet and outlet 11, the first oil path 21 and the first oil outlet 13; when a worker starts the second proportional flow valve 32, the worker opens the first electromagnetic directional valve 51 and correspondingly switches the first electromagnetic one-way valve 511, so that hydraulic oil flows to the first oil outlet 13, the first oil way 21 and the first inlet and outlet 11 through the second inlet and outlet 12, the second oil way 22 and the second oil outlet 14; when the staff closes both the first proportional flow valve 31 and the second proportional flow valve 32, the first electromagnetic directional valve 51 is switched to the first electromagnetic through valve 512, and the second electromagnetic directional valve 52 is correspondingly switched to the second electromagnetic through valve 522, so that the hydraulic oil flows to the working elements in a direct manner.
A flow valve 6 is fixed on the side wall of the valve block 1 on one side of the first inlet/outlet 11 and the second inlet/outlet 12, the flow valve 6 and the working element are connected in parallel between the first oil path 21 and the second oil path 22, and two ends of the flow valve 6 are respectively connected with the first hydraulic lock 41 and the second hydraulic lock 42.
In actual work, when the first proportional flow valve 31 and the second proportional flow valve 32 are both in a power-off state, a worker manually adjusts the flow rate of hydraulic oil by means of the flow valve 6.
The implementation principle of the embodiment 1 of the application is as follows: when the worker starts the first proportional flow valve 31, the worker opens the second electromagnetic directional valve 52 and correspondingly switches the second electromagnetic directional valve 521 to the second electromagnetic one-way valve, at this time, the hydraulic oil enters the working element through the first inlet/outlet 11, the first oil path 21, the first hydraulic lock 41, the first oil path 21, the first proportional one-way valve 311, the first oil path 21 and the first oil outlet 13, and then flows back to the oil storage cylinder through the second oil outlet 14, the second oil path 22, the second proportional straight-through valve 322, the second oil path 22, the second hydraulic lock 42, the second oil path 22 and the second inlet/outlet 12.
Or, when the operator starts the second proportional flow valve 32, the operator opens the first electromagnetic directional valve 51 and correspondingly switches to the first electromagnetic one-way valve 511, and at this time, the hydraulic oil enters the working element through the second inlet/outlet 12, the second oil path 22, the second proportional one-way valve 321, the second oil path 22, the second hydraulic lock 42, the second oil path 22, and the second oil outlet 14, and then flows back to the oil storage cylinder through the first oil outlet 13, the first oil path 21, the first proportional through valve 312, the first oil path 21, the first hydraulic lock 41, the first oil path 21, and the first inlet/outlet 11.
Or, when the worker closes both the first proportional flow valve 31 and the second proportional flow valve 32, the first electromagnetic directional valve 51 is switched to the first electromagnetic through valve 512, and the second electromagnetic directional valve 52 is correspondingly switched to the second electromagnetic through valve 522, at this time, the hydraulic oil enters the working element through the first inlet/outlet 11, the first oil path 21, the first hydraulic lock 41, the first oil path 21, the first electromagnetic through valve 512, the first oil path 21, and the first oil outlet 13, and then flows back to the oil storage cylinder through the second oil outlet 14, the second oil path 22, the first electromagnetic through valve 512, the second oil path 22, the second hydraulic lock 42, the second oil path 22, and the second inlet/outlet 12.
Or when the first proportional flow valve 31 and the second proportional flow valve 32 are both in the power-off state, the staff opens the flow valve 6 and manually adjusts the flow rate of the hydraulic oil. At this time, the hydraulic oil enters the working element through the first inlet/outlet 11, the first oil path 21, the first hydraulic lock 41, the first oil path 21, the first electromagnetic through valve 512, the first oil path 21, and the first oil outlet 13, and then flows back to the oil storage cylinder through the second oil outlet 14, the second oil path 22, the first electromagnetic through valve 512, the second oil path 22, the second hydraulic lock 42, the second oil path 22, and the second inlet/outlet 12. The flow valve 6 is connected in parallel with the working element, and when the flow in the flow valve 6 becomes larger, the amount of hydraulic oil passing through the working element is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A proportional speed regulating valve group is characterized in that: including oil circuit (2), first import and export (11) and second import and export (12), oil circuit (2) are including first oil circuit (21) and second oil circuit (22), first import and export (11) and first oil circuit (21) are connected, second import and export (12) and second oil circuit (22) are connected, first oil circuit (21) and second oil circuit (22) all are connected with the work component, series connection has proportion flow valve (3) on first oil circuit (21), just the both ends difference tube coupling first import and export (11) and the work component of proportion flow valve (3).
2. The proportioning valve set of claim 1, wherein: the high-pressure proportional valve is characterized by further comprising a valve block (1), the first inlet and outlet (11) and the second inlet and outlet (12) are arranged on the valve block (1), the first oil way (21) and the second oil way (22) are fixed in the valve block (1), and the proportional flow valve (3) is fixed on the valve block (1).
3. The proportioning valve set of claim 2, wherein: the hydraulic lock (4) is fixed on the valve block (1), the hydraulic lock (4) comprises a first hydraulic lock (41) and a second hydraulic lock (42), the first hydraulic lock (41) is connected in series in the first oil way (21) and communicated with the first inlet and outlet (11), and the second hydraulic lock (42) is connected in series in the second oil way (22) and connected with the second inlet and outlet (12) through a pipeline.
4. The proportioning valve set of claim 3, wherein: proportional flow valve (3) are two lead to proportional flow valve, proportional flow valve (3) include first proportional flow valve (31) and second proportional flow valve (32).
5. The proportioning valve pack of claim 4, wherein: the first proportional flow valve (31) comprises a first proportional one-way valve (311) and a first proportional through valve (312), the first proportional flow valve (31) is connected in series in the first oil way (21), two ends of the first proportional flow valve (31) are respectively connected with a first hydraulic lock (41) and a working element through pipelines, the second proportional flow valve (32) comprises a second proportional one-way valve (321) and a second proportional through valve (322), the second proportional flow valve (32) is connected in series in the second oil way (22), and two ends of the second proportional flow valve (32) are respectively connected with the working element and a second hydraulic lock (42) through pipelines; when the first proportional flow valve (31) is switched to the first proportional one-way valve (311), the second proportional flow valve (32) is correspondingly switched to the second proportional straight-through valve (322); when the second proportional flow valve (32) is switched to the second proportional one-way valve (321), the first proportional flow valve (31) is correspondingly switched to the first proportional straight-through valve (312).
6. The proportioning valve set of claim 5, wherein: an electromagnetic directional valve (5) is fixed on the valve block (1), and the electromagnetic directional valve (5) is a two-position two-way electromagnetic directional valve.
7. The proportioning valve set of claim 6, wherein: the electromagnetic directional valve (5) comprises a first electromagnetic directional valve (51) and a second electromagnetic directional valve (52), the first electromagnetic directional valve (51) comprises a first electromagnetic one-way valve (511) and a first electromagnetic through valve (512), the first electromagnetic directional valve (51) and a first proportional flow valve (31) are connected in parallel in a first oil path (21), two ends of the first electromagnetic directional valve (51) are respectively connected with a first hydraulic lock (41) and a working element through a pipeline, the second electromagnetic directional valve (52) comprises a second electromagnetic one-way valve (521) and a second electromagnetic through valve (522), the second electromagnetic directional valve (52) and a second proportional flow valve (32) are connected in parallel in a second oil path (22), and two ends of the second electromagnetic directional valve (52) are respectively connected with the working element and a second hydraulic lock (42) through a pipeline; when the first proportional flow valve (31) is started, the second electromagnetic directional valve (52) is correspondingly switched to a second electromagnetic one-way valve (521); when the second proportional flow valve (32) is started, the first electromagnetic directional valve (51) is correspondingly switched to the first electromagnetic one-way valve (511); when the first proportional flow valve (31) and the second proportional flow valve (32) are both closed, the first electromagnetic directional valve (51) is switched to the first electromagnetic through valve (512), and the second electromagnetic directional valve (52) is correspondingly switched to the second electromagnetic through valve (522).
8. The proportioning valve set of claim 3, wherein: and a flow valve (6) is fixed on the valve block (1), the flow valve (6) and a working element are connected between the first oil way (21) and the second oil way (22) in parallel, and two ends of the flow valve (6) are respectively connected with the first hydraulic lock (41) and the second hydraulic lock (42).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021641454.4U CN212985658U (en) | 2020-08-08 | 2020-08-08 | Proportional speed regulating valve group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021641454.4U CN212985658U (en) | 2020-08-08 | 2020-08-08 | Proportional speed regulating valve group |
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| CN212985658U true CN212985658U (en) | 2021-04-16 |
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| CN202021641454.4U Active CN212985658U (en) | 2020-08-08 | 2020-08-08 | Proportional speed regulating valve group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222867A (en) * | 2021-11-15 | 2022-03-22 | 无锡市东舟船舶设备股份有限公司 | Valve group |
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2020
- 2020-08-08 CN CN202021641454.4U patent/CN212985658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222867A (en) * | 2021-11-15 | 2022-03-22 | 无锡市东舟船舶设备股份有限公司 | Valve group |
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