CN210034003U - Control valve group for GPS navigation of precise agricultural machine - Google Patents
Control valve group for GPS navigation of precise agricultural machine Download PDFInfo
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- CN210034003U CN210034003U CN201920628760.5U CN201920628760U CN210034003U CN 210034003 U CN210034003 U CN 210034003U CN 201920628760 U CN201920628760 U CN 201920628760U CN 210034003 U CN210034003 U CN 210034003U
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- oil return
- oil inlet
- oil
- steering
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Abstract
The utility model discloses a valve unit for GPS navigation of accurate agricultural machinery, including steering valve piece, case and steering gear, bolt fixedly connected with case is passed through at steering valve piece top, the equal swing joint in steering valve piece both ends has the steering gear, the fixed check valve that is provided with of case inner chamber one end, the fixed pressure compensation governing valve that is provided with in check valve bottom, pressure compensation governing valve one end fixedly connected with overflow valve, overflow valve top fixed mounting has compensator one side fixed mounting has the electromagnetism diverter valve, case inner chamber other end fixed mounting has the electro proportional valve, electro proportional valve top fixed mounting has No. two check valves, the fixed hydraulic pressure lock that is provided with in No. two check valve tops. The utility model discloses a compensator compensating pressure is the preferential flow direction electro proportional valve of flow, and control agricultural machinery turns to, and pressure compensation governing valve governing system is pressed, makes the reaction of electro proportional valve sensitive rapidly more.
Description
Technical Field
The utility model relates to a valve unit, in particular to a valve unit that is used for GPS navigation of accurate agricultural machinery.
Background
The precise agriculture is a new trend of the current world development, namely a satellite positioning system is used for providing high-precision positioning information for agricultural machinery, a vehicle-mounted computer is used for commanding a hydraulic system to control steering, and the agricultural machinery walks according to a planned route, so that the precise agricultural machinery is an automatic control system. In the current market, a control valve for GPS navigation is mainly monopolized by foreign brands such as Rexroth, Eaton and the like.
At present, the Chinese market has better reverberation, and the highest market share is an ED4 series electric proportional reversing valve of Rexroth. Because the electric proportional valve has higher requirement on the oil cleanliness, and agricultural machinery has relatively low oil cleanliness, and higher requirement on the anti-pollution performance of the valve is provided, many domestic valves cannot achieve the required control precision, and therefore the control valve bank for the GPS navigation of the precise agricultural machinery is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a valve unit for GPS navigation of accurate agricultural machinery, through compensator compensating pressure, it is the preferential flow direction electro proportional valve of flow, control agricultural machinery turns to, pressure compensation governing valve governing system is pressed, make the reaction of electro proportional valve sensitive rapidly more, the application self-control electro proportional valve, combine the high-quality screw thread cartridge valve of sea Defus, and high performance material and powerful processing ability, the valve unit that makes GPS navigation has realized the high accuracy, high performance, the lightweight, miniaturized performance. The utility model discloses a foremost characteristics are just on the integrated valve piece of electric proportional valve, have improved processing and honing, can effectively solve the problem among the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a valve unit for GPS navigation of accurate agricultural machinery, includes steering valve piece, case and steering gear, the steering valve piece top is through bolt fixedly connected with case, the equal swing joint in steering valve piece both ends has the steering gear, the fixed check valve that is provided with of case inner chamber one end, the fixed pressure compensation governing valve that is provided with in check valve bottom, pressure compensation governing valve one end fixedly connected with overflow valve, overflow valve top fixed mounting has compensator one side fixed mounting has the electromagnetism diverter valve, case inner chamber other end fixed mounting has the electro proportional valve, electro proportional valve top fixed mounting has No. two check valves, the fixed hydraulic lock that is provided with in No. two check valve tops.
Furthermore, an oil inlet is fixedly formed in one end of the steering gear, an oil return port is fixedly formed in the other end of the steering gear, an oil inlet opening III is fixedly formed in the top of the one-way valve, an oil return port opening IV is fixedly formed in the bottom of the one-way valve, an oil inlet opening V is fixedly formed in one end of the two-way valve, an oil return port opening VI is fixedly formed in the other end of the two-way valve, an oil inlet opening seven is fixedly formed in one end of the electromagnetic steering valve, an oil return port opening eight is fixedly formed in the other end of the electromagnetic steering valve, a pressure compensation regulating valve one end is fixedly welded and connected with an oil inlet opening nine, and a oil return port opening ten is fixedly welded and connected.
Further, overflow valve one end fixed welded connection has No. eleven oil inlet, overflow valve other end fixed welded connection has No. twelve oil return ports, compensator top fixed welded connection has No. thirteen oil inlets, compensator bottom fixed welded connection has No. fourteen oil return ports, hydraulic lock top fixed welded connection has No. fifteen oil inlets, hydraulic lock bottom fixed welded connection has No. sixteen oil return ports, electro proportional valve one end fixed welded connection has No. seventeen oil inlet, electro proportional valve other end fixed welded connection has No. eighteen oil return ports.
Further, No. four oil return openings are fixedly connected with No. thirteen oil inlets through pipelines, No. fourteen oil return openings are fixedly connected with an oil inlet through a pipeline, No. fourteen oil return openings are fixedly connected with No. eight oil return openings through pipelines, and No. thirteen oil return openings are fixedly connected with No. ten oil return openings through pipelines.
Furthermore, the eleventh oil inlet is fixedly connected with the sixth oil return opening through a pipeline, the seventh oil inlet is fixedly connected with the seventeen oil inlet through a pipeline, the eighteen oil return opening is fixedly connected with the fifth oil inlet through a pipeline, and the fifteenth oil inlet is fixedly connected with the sixteenth oil return opening through a pipeline.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the feedback signal of the electro-proportional valve is sent to the No. thirteen oil inlet to control the priority flow of the compensator, so that the flow of the system is continuously changed according to the change of the load, and the regulating speed of the valve core is regulated.
2. The seventh oil inlet is communicated with the seventeenth oil inlet, the electromagnetic steering valve is electrified, and pressure oil flows to the seventeenth oil inlet; the hydraulic lock is used for locking the steering, so that the stability of the steering can be kept when the system is stable; and the thirteen oil inlets are provided with damping to control the reaction speed of the compensator, and the pressure compensation regulating valve is used for controlling the regulating precision of the compensator.
Drawings
Fig. 1 is the utility model relates to an overall structure schematic diagram of a valve unit for the GPS navigation of accurate agricultural machinery.
Fig. 2 is the utility model relates to a case structure schematic diagram of a valve unit for GPS navigation of accurate agricultural machinery.
Fig. 3 is the utility model relates to a check valve structure schematic diagram of a valve unit for the GPS navigation of accurate agricultural machinery.
Fig. 4 is the utility model relates to a No. two check valve structural schematic of a valve unit for accurate agricultural machinery's GPS navigation.
Fig. 5 is the utility model relates to an electromagnetic steering valve structure sketch map of a valve group for the GPS navigation of accurate agricultural machinery.
Fig. 6 is the utility model relates to a pressure compensation governing valve structural sketch of a valve unit for the GPS navigation of accurate agricultural machinery.
Fig. 7 is the utility model relates to an overflow valve structure schematic diagram of a valve unit for the GPS navigation of accurate agricultural machinery.
Fig. 8 is a schematic structural view of a compensator of a control valve set for GPS navigation of an accurate agricultural machine.
Fig. 9 is the utility model relates to a hydraulic pressure lock structure sketch map of a valve unit for accurate agricultural machinery's GPS navigation.
Fig. 10 is a schematic diagram of an electro proportional valve structure of a control valve set for GPS navigation of an accurate agricultural machine.
In the figure: 1. a steering valve block; 2. a valve core; 3. a diverter; 4. a first check valve; 5. A second one-way valve; 6. an electromagnetic steering valve; 7. a pressure compensation regulating valve; 8. an overflow valve; 9. a compensator; 10. hydraulic locking; 11. an electro proportional valve; 12. a first oil inlet; 13. a second oil return port; 14. a third oil inlet; 15. a fourth oil return port; 16. a fifth oil inlet; 17. a sixth oil return port; 18. a seventh oil inlet; 19. an eighth oil return port; 20. A ninth oil inlet; 21. a tenth oil return port; 22. an eleven oil inlet; 23. a No. twelve oil return port; 24. a thirteen oil inlet; 25. a fourteen oil return port; 26. a No. fifteen oil inlet; 27. a sixteenth oil return port; 28. a seventeenth oil inlet; 29. eighteen oil return ports.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-10, a control valve group for GPS navigation of an accurate agricultural machine includes a steering valve block 1, a valve core 2 and a steering gear 3, the top of the steering valve block 1 is fixedly connected with the valve core 2 through a bolt, both ends of the steering valve block 1 are movably connected with the steering gear 3, one end of an inner cavity of the valve core 2 is fixedly provided with a one-way valve 4, the bottom of the one-way valve 4 is fixedly provided with a pressure compensation regulating valve 7, one end of the pressure compensation regulating valve 7 is fixedly connected with an overflow valve 8, one side of the top of the overflow valve 8 is fixedly provided with a compensator 9, and one side of the electromagnetic steering valve 6 is fixedly provided with an electromagnetic proportional valve 11, the other end of the inner cavity of the valve core 2 is fixedly provided with an electro-proportional valve 11, the top of the electro proportional valve 11 is fixedly provided with a.
In the embodiment, as shown in fig. 1 and 2, the hydraulic lock is used for locking the steering, so that the steering stability can be maintained when the system is stable; and the thirteen oil inlets are provided with damping to control the reaction speed of the compensator, and the pressure compensation regulating valve is used for controlling the regulating precision of the compensator.
The oil inlet 12 is fixedly formed in one end of the steering gear 3, the oil return port 13 is fixedly formed in the other end of the steering gear 3, the oil inlet 14 III is fixedly formed in the top of the check valve 4, the oil return port 15 IV is fixedly formed in the bottom of the check valve 4, the oil inlet 16V is fixedly formed in one end of the check valve 5 II, the oil return port 17 VI is fixedly formed in the other end of the check valve 5 II, the oil inlet 18 VII is fixedly formed in one end of the electromagnetic steering valve 6, the oil return port 19 VIII is fixedly formed in the other end of the electromagnetic steering valve 6, the oil inlet 20 VII is fixedly welded and connected to one end of the pressure compensation regulating valve 7, and the oil return port 21 VIII is fixedly welded and connected to the other end of the pressure compensation regulating valve 7.
In this embodiment, as shown in fig. 1 and 2, 3, 4, 5, and 6, the steering gear 3, the first check valve 4, the second check valve 5, the electromagnetic steering valve 6, and the pressure compensation regulating valve 7 can be controlled through the oil inlet and the oil return port.
The hydraulic control system comprises an overflow valve 8, a compensator 9, a compensator 11, an electro-proportional valve 11, a hydraulic lock 10, a hydraulic pump and a proportional valve, wherein the overflow valve 8 is fixedly welded and connected with an eleventh oil inlet 22, the overflow valve 8 is fixedly welded and connected with a twelfth oil return port 23, the compensator 9 is fixedly welded and connected with a thirteenth oil inlet 24, the compensator 9 is fixedly welded and connected with a fourteenth oil return port 25, the hydraulic lock 10 is fixedly welded and connected with a fifteenth oil inlet 26, the hydraulic lock 10 is.
In this embodiment, as shown in fig. 1, 2, 7, 8, 9, and 10, the relief valve 8, the compensator 9, the hydraulic lock 10, and the electro proportional valve 11 can be controlled through the oil inlet and the oil return port.
The fourth oil return opening 15 is fixedly connected with a thirteenth oil inlet 24 through a pipeline, the fourteenth oil return opening 25 is fixedly connected with the first oil inlet 12 through a pipeline, the fourteenth oil return opening 25 is fixedly connected with an eighth oil return opening 19 through a pipeline, and the thirteenth oil inlet 24 is fixedly connected with a tenth oil return opening 21 through a pipeline.
In this embodiment, as shown in fig. 1, 2, 3, 5 and 8, the first check valve (4), the compensator (9) and the electromagnetic steering valve (6) are communicated through pipelines, so that a user can conveniently control the valve core 2.
The eleventh oil inlet 22 is fixedly connected with the sixth oil return port 17 through a pipeline, the seventh oil inlet 18 is fixedly connected with the seventeen oil inlet 28 through a pipeline, the eighteen oil return port 29 is fixedly connected with the fifth oil inlet 16 through a pipeline, and the fifteenth oil inlet 26 is fixedly connected with the sixteenth oil return port 27 through a pipeline.
In this embodiment, as shown in fig. 1, 2, 4, 5 and 7, the overflow valve (8), the second check valve (5) and the electromagnetic steering valve (6) are respectively communicated through a pipeline, so that a user can conveniently control the valve core 2.
The utility model relates to a control valve group for GPS navigation of precise agricultural machinery, when in work, a first oil inlet 12 is connected with a pressure measuring joint, a fourth oil return port 15 and a thirteenth oil inlet are communicated, and pressure oil, namely system pressure, is introduced into the position; the eighth oil return port is communicated with equipment flowing to the eighth oil return port, and pressure oil which is shunted to other paths is arranged in the eighth oil return port; a fourteen oil return port is communicated with an eighth oil return port, a thirteen oil inlet is connected with a tenth oil return port, an eleventh oil inlet 22 is communicated with a sixth oil return port 17, the oil way is a control oil way, and a feedback signal of the electro-proportional valve 11 is sent to the thirteen oil inlet to control the priority flow of the compensator 9, so that the flow of the system is continuously changed according to the change of the load; the seventh oil inlet 18 is communicated with the seventeenth oil inlet 28, the electromagnetic steering valve 6 is powered on, and the pressure oil flows to the seventeenth oil inlet 28; the seventeenth oil inlet 28 and the eighteenth oil return port 29 are respectively communicated with the fifth oil inlet 16, the fifteenth oil inlet 26 and the sixteenth oil return port 27, the sixteenth oil return port 27 is communicated with the second oil return port, and the hydraulic lock 10 is used for locking the steering, so that the steering stability can be kept when the system is stable; and the thirteen oil inlets 24 are provided with damping to control the reaction speed of the compensator 9, and the pressure compensation regulating valve 7 is used for controlling the regulating precision of the compensator 9.
The utility model discloses a steering valve piece 1, case 2, steering gear 3, check valve 4, check valve 5 No. two, electromagnetism steering valve 6, pressure compensation governing valve 7, overflow valve 8, compensator 9, hydraulic pressure lock 10, electro proportional valve 11, oil inlet 12 No. one, oil return 13 No. two, oil inlet 14 No. three, oil return 15 No. four, oil inlet 16 No. five, oil return 17 No. six, oil inlet 18 No. seven, oil return 19 No. eight, oil inlet 20 No. nine, oil return 21 No. ten, oil inlet 22 No. eleven, oil return 23 No. twelve, oil inlet 24 No. thirteen, oil return 25 No. fourteen, oil inlet 26 No. fifteen, oil return 27 No. sixteen, oil inlet 28 No. seventeen, oil return 29 No. eighteen, the part is general standard or the part that technical staff knows, the structure and principle are known to the skilled person through technical manuals or through routine experimentation.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a control valves for GPS navigation of accurate agricultural machinery, includes steering valve piece (1), case (2) and steering gear (3), there is case (2) at steering valve piece (1) top through bolt fixedly connected with, the equal swing joint in steering valve piece (1) both ends has steering gear (3), its characterized in that: the hydraulic control valve is characterized in that a one-way valve (4) is fixedly arranged at one end of an inner cavity of the valve core (2), a pressure compensation adjusting valve (7) is fixedly arranged at the bottom of the one-way valve (4), an overflow valve (8) is fixedly connected with one end of the pressure compensation adjusting valve (7), an electromagnetic steering valve (6) is fixedly arranged on one side of a compensator (9) at the top of the overflow valve (8), an electric proportional valve (11) is fixedly arranged at the other end of the inner cavity of the valve core (2), a second one-way valve (5) is fixedly arranged at the top of the electric proportional valve (11), and a hydraulic lock (10) is fixedly arranged at the top of the second.
2. The control valve group for the GPS navigation of the precision agricultural machine according to claim 1, characterized in that: one end of the steering gear (3) is fixedly provided with a first oil inlet (12), the other end of the steering gear (3) is fixedly provided with a second oil return opening (13), a third oil inlet (14) is fixedly arranged at the top of the first check valve (4), a fourth oil return opening (15) is fixedly arranged at the bottom of the first check valve (4), one end of the second check valve (5) is fixedly provided with a fifth oil inlet (16), the other end of the second one-way valve (5) is fixedly provided with a sixth oil return opening (17), one end of the electromagnetic steering valve (6) is fixedly provided with a seventh oil inlet (18), an eight-number oil return port (19) is fixedly arranged at the other end of the electromagnetic steering valve (6), one end of the pressure compensation regulating valve (7) is fixedly welded with a ninth oil inlet (20), and the other end of the pressure compensation regulating valve (7) is fixedly welded and connected with a No. ten oil return opening (21).
3. The control valve group for the GPS navigation of the precision agricultural machine according to claim 1, characterized in that: overflow valve (8) one end fixed welding is connected with eleven oil inlet (22), overflow valve (8) other end fixed welding is connected with twelve oil return (23), compensator (9) top fixed welding is connected with thirteen oil inlet (24), compensator (9) bottom fixed welding is connected with fourteen oil return (25), hydraulic lock (10) top fixed welding is connected with fifteen oil inlet (26), hydraulic lock (10) bottom fixed welding is connected with sixteen oil return (27), electro proportional valve (11) one end fixed welding is connected with seventeen oil inlet (28), electro proportional valve (11) other end fixed welding is connected with eighteen oil return (29).
4. The control valve group for GPS navigation of precision agricultural machinery according to claim 3, characterized in that: no. four oil return openings (15) are fixedly connected with No. thirteen oil inlets (24) through pipelines, No. fourteen oil return openings (25) are fixedly connected with an oil inlet (12) through a pipeline, No. fourteen oil return openings (25) are fixedly connected with No. eight oil return openings (19) through a pipeline, and No. thirteen oil inlets (24) are fixedly connected with No. ten oil return openings (21) through pipelines.
5. The control valve group for GPS navigation of precision agricultural machinery according to claim 4, characterized in that: the No. eleven oil inlet (22) is fixedly connected with a No. six oil return port (17) through a pipeline, the No. seven oil inlet (18) is fixedly connected with a No. seventeen oil inlet (28) through a pipeline, the No. eighteen oil return port (29) is fixedly connected with a No. five oil inlet (16) through a pipeline, and the No. fifteen oil inlet (26) is fixedly connected with a No. sixteen oil return port (27) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628760.5U CN210034003U (en) | 2019-05-05 | 2019-05-05 | Control valve group for GPS navigation of precise agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628760.5U CN210034003U (en) | 2019-05-05 | 2019-05-05 | Control valve group for GPS navigation of precise agricultural machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034003U true CN210034003U (en) | 2020-02-07 |
Family
ID=69363365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920628760.5U Active CN210034003U (en) | 2019-05-05 | 2019-05-05 | Control valve group for GPS navigation of precise agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034003U (en) |
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2019
- 2019-05-05 CN CN201920628760.5U patent/CN210034003U/en active Active
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