CN210381922U - Automatic grain system of unloading of agricultural harvester - Google Patents
Automatic grain system of unloading of agricultural harvester Download PDFInfo
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- CN210381922U CN210381922U CN201921237510.5U CN201921237510U CN210381922U CN 210381922 U CN210381922 U CN 210381922U CN 201921237510 U CN201921237510 U CN 201921237510U CN 210381922 U CN210381922 U CN 210381922U
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- grain unloading
- directional valve
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Abstract
The utility model relates to an automatic grain unloading system of an agricultural harvester, belonging to the technical field of agricultural harvesters; the system comprises a granary, a granary support and a hydraulic grain unloading mechanism, wherein the hydraulic grain unloading mechanism comprises an oil tank, a control oil pump and a grain unloading oil cylinder, the system also comprises an electromagnetic directional valve, an embedded controller, an operating handle and a pressure sensor, the electromagnetic directional valve is arranged on an oil circuit of the grain unloading oil cylinder, and the electromagnetic directional valve is used for controlling the hydraulic grain unloading mechanism to lift, stay and fall; the embedded controller is electrically connected with the control electromagnetic reversing valve and is used for controlling the electromagnetic reversing valve; the operating handle is electrically connected with the embedded controller and comprises a starting button; the pressure sensor is arranged on the electromagnetic directional valve, is electrically connected with the embedded controller and is used for detecting the pressure of a working oil port of the electromagnetic directional valve; after the start button is pressed, the embedded controller controls the electromagnetic directional valve to work so as to control the hydraulic grain unloading mechanism to lift, stop and fall, so that the intelligent one-key start automatic grain unloading is completed.
Description
Technical Field
The utility model relates to an automatic grain system of unloading of agricultural harvester belongs to agricultural harvester technical field.
Background
The harvester is used as an important type in agricultural machinery and plays a great role in agriculture, so that the working efficiency of the harvester is improved, positive significance is achieved for improving the development level of the agricultural machinery, and the existing harvester adopts a mechanical valve and a manual grain unloading mode conventionally. The operation is time-consuming and labor-consuming, the labor intensity is high, and the operation time is long; an intelligent automatic grain unloading system is needed.
The Chinese patent publication No. CN208639009U discloses a device for realizing automatic grain unloading of a grain harvester; including control oil pump and oil tank, the oil inlet of control oil pump links to each other with the oil tank, its characterized in that, the oil-out of control oil pump links to each other with the main oil circuit, be provided with the flow divider valve on the main oil circuit, the flow divider valve divide into control oil circuit one and control oil circuit two with the oil circuit, control oil circuit one is gone up to establish ties has the electromagnetic directional valve one that is used for controlling the gun barrel motor and is used for controlling the manual switching valve that turns to the hydro-cylinder, it passes through oil return path and links to each other with the oil tank to turn to the manual switching valve, control oil circuit two is gone up to establish ties has the manual switching valve of header that is used for controlling the header hydro-cylinder, is used for controlling reel hydro-cylinder two and is used for controlling the electromagnetic directional valve three of unloading the grain. The electric button of the electromagnetic directional valve can be directly arranged on the steering control lever, and the compound action is efficiently completed through a mechanical combination electric control mode. However, the operator needs to press the button of the electromagnetic directional valve as required to control the electromagnetic directional valve to work, which still wastes time and labor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an automatic grain system of unloading of agricultural harvester unloads grain intelligently, and a key starts automatic completion and unloads grain.
The utility model discloses an agricultural harvester unloads grain system automatically, unload the grain mechanism including granary, granary support and hydraulic pressure, hydraulic pressure unloads the grain mechanism and includes the oil tank, control oil pump and unloads the grain hydro-cylinder, the system still includes solenoid directional valve, embedded controller, operating handle, pressure sensor, solenoid directional valve sets up unload the oil circuit of grain hydro-cylinder on, solenoid directional valve is used for controlling hydraulic pressure to unload that the grain mechanism rises to rise, stops and falls; the embedded controller is electrically connected with the control electromagnetic reversing valve and is used for controlling the electromagnetic reversing valve; the operating handle is electrically connected with the embedded controller and comprises a starting button; the pressure sensor is installed on the electromagnetic directional valve, is electrically connected with the embedded controller and is used for detecting the pressure of the working oil port of the electromagnetic directional valve.
The electromagnetic directional valve replaces the traditional mechanical valve, an embedded controller and a pressure sensor are added, and a starting button is arranged on an operating handle. After the start button is pressed, the embedded controller controls the electromagnetic directional valve to work so as to control the hydraulic grain unloading mechanism to lift, stop and fall, so that the intelligent one-key start automatic grain unloading is completed. The stay time can be set according to the condition, and the grain unloading time is reserved.
Preferably, the hydraulic grain unloading mechanism is lifted to a pressure value of the pressure sensor which is more than or equal to a set value X, and the electromagnetic directional valve is used for controlling the hydraulic grain unloading machine to stay; the hydraulic grain unloading mechanism falls to a pressure value of the pressure sensor which is not less than a set value X, and the embedded controller is used for controlling the electromagnetic directional valve to reset. The set value X is preferably in the range of 0-12.5MPa, including 12.5 MPa.
Preferably, the electromagnetic directional valve is a two-position three-way electromagnetic valve, the oil return port is communicated with the oil tank, the working oil port is communicated with the grain unloading oil cylinder, the oil inlet is communicated with the oil outlet of the control oil pump, and the oil inlet of the control oil pump is communicated with the oil tank.
Preferably, the operating handle further comprises an emergency stop and secondary grain unloading button, the emergency stop and secondary grain unloading button can be pressed in emergency or maintenance, and the emergency stop and secondary grain unloading button is electrically connected with the embedded controller. The embedded controller automatic control system carries out emergency stop and secondary grain unloading, and the operation is convenient.
Preferably, the secondary grain unloading button is triggered, the pressure value of the pressure sensor is less than or equal to the set value Y, and the electromagnetic directional valve controls the hydraulic grain unloading mechanism to stop. The set value Y is preferably in the range of 0-12.5MPa, including 12.5 MPa.
Preferably, the granary further comprises a first proximity switch and a second proximity switch, wherein the first proximity switch is arranged at the upper part of the granary bracket, is electrically connected with the embedded controller and is used for detecting whether the granary is lifted in place or not; the second proximity switch is arranged at the lower part of the granary, is electrically connected with the embedded controller and is used for detecting whether the granary falls in place or not.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the grain unloading machine has the advantages that the grain unloading machine is started by one key, the intellectualization of the agricultural machine is improved, the operation is simple, the time and the labor are saved, the labor intensity is reduced, the grain unloading speed is increased, and the agricultural automatic operation production is fully embodied.
2. The system runs more stably and reliably due to the arrangement of the first proximity switch and the second proximity switch.
Drawings
FIG. 1 is a schematic structural view of an automatic grain unloading system of an agricultural harvester according to the present invention;
fig. 2 is a circuit block diagram of the automatic grain unloading system of the agricultural harvester.
In the figure: 1. an electromagnetic directional valve; 2. an embedded controller; 3. an operating handle; 4. a pressure sensor; 5. a first proximity switch; 6. a second proximity switch; 7. hydraulic pressure unloads grain mechanism.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings:
example 1
As shown in fig. 1-2, an automatic grain unloading system of an agricultural harvester comprises a hydraulic grain unloading mechanism 7, wherein the hydraulic grain unloading mechanism 7 comprises an oil tank and a grain unloading oil cylinder, the system further comprises an electromagnetic directional valve 1, an embedded controller 2, an operating handle 3 and a pressure sensor 4, the electromagnetic directional valve 1 is arranged on an oil path of the grain unloading oil cylinder, and the electromagnetic directional valve 1 is used for controlling the hydraulic grain unloading mechanism 7 to lift, stop and fall; the embedded controller 2 is electrically connected with the control electromagnetic directional valve 1 and is used for controlling the electromagnetic directional valve 1; the operating handle 3 is electrically connected with the embedded controller 2 and comprises a starting button; the pressure sensor 4 is installed on the electromagnetic directional valve 1, is electrically connected with the embedded controller 2, and is used for detecting the pressure of the working oil port of the electromagnetic directional valve 1.
The electromagnetic directional valve 1 replaces the traditional mechanical valve, an embedded controller 2 and a pressure sensor 4 are added, and a starting button is arranged on an operating handle 3. After a start button is pressed, the embedded controller 2 controls the electromagnetic directional valve 1 to work so as to control the hydraulic grain unloading mechanism 7 to lift, stop and fall, so that the intelligent one-key start automatic grain unloading is completed. The stay time can be set according to the condition, and the grain unloading time is reserved.
The hydraulic grain unloading mechanism 7 is lifted to a pressure value of the pressure sensor 4 which is not less than a set value X, and the electromagnetic directional valve 1 is used for controlling the hydraulic grain unloading machine to stay; the hydraulic grain unloading mechanism 7 falls to a pressure value of the pressure sensor 4 which is not less than a set value X, and the embedded controller 2 is used for controlling the electromagnetic directional valve 1 to reset.
The electromagnetic directional valve 1 is a two-position three-way electromagnetic valve, an oil return opening is communicated with the oil tank, a working oil opening is communicated with the grain unloading oil cylinder, an oil inlet is communicated with an oil outlet of the control oil pump, and an oil inlet of the control oil pump is communicated with the oil tank.
The operating handle 3 also comprises an emergency stop and secondary grain unloading button which can be pressed in emergency or maintenance, and the embedded controller 2 automatically controls the system to perform emergency stop and secondary grain unloading, so that the operation is convenient.
Triggering a secondary grain unloading button, controlling the hydraulic grain unloading mechanism 7 to stop by the electromagnetic directional valve 1 when the pressure value of the pressure sensor 4 is less than or equal to the set value Y.
The granary lifting control system further comprises a first proximity switch 5 and a second proximity switch 6, wherein the first proximity switch 5 is arranged at the granary lifting in-place position, is electrically connected with the embedded controller 2, and is used for detecting whether the granary is lifted in place or not; the second proximity switch 6 is arranged at the position where the granary falls back to the place, is electrically connected with the embedded controller 2, and is used for detecting whether the granary falls to the place or not.
Specifically, the electromagnetic directional valve 1 may be of the following types: the PDCF50K-D/01a101-24V-12.5, the model of the embedded controller 2 can be: EC2612, model number of pressure sensor 4 may be: the LST-131, the first proximity switch and the second proximity switch 6 can be in the following types: a travel switch 8108. The system can be suitable for the giant 4YZP-4Y type corn harvester, and can also be suitable for other types of corn harvesters or agricultural harvesters.
The working process is as follows:
when the system is in an initial state, the operating handle 3 is pressed to start the button to enter an automatic mode, the embedded controller 2 starts the electromagnetic directional valve 1, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to be lifted until the pressure value of the pressure sensor 4 is larger than or equal to a set value X, the electromagnetic directional valve 1 controls the hydraulic grain unloading machine to stay, and grain unloading time is reserved. After the grain unloading is finished, the embedded controller 2 controls the electromagnetic directional valve 1 to change direction, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to fall until the pressure value of the pressure sensor 4 is larger than or equal to the set value X, the grain unloading is finished, and the system recovers the initial state.
Optionally, an emergency stop button is arranged after the start button, and when an emergency occurs, the emergency stop button is pressed, so that the system recovers to the initial state.
Optionally, when the hydraulic grain unloading mechanism 7 falls down, the grain unloading is not thorough, the secondary grain unloading button is pressed, the hydraulic grain unloading mechanism 7 falls down until the pressure value of the pressure sensor 4 is less than or equal to the set value Y, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to stop, the electromagnetic directional valve 1 reverses direction, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to lift until the pressure value of the pressure sensor 4 is greater than or equal to the set value X, the electromagnetic directional valve 1 controls the hydraulic grain unloading machine to stop, and grain unloading time is reserved. After the grain unloading is finished, the embedded controller 2 controls the electromagnetic directional valve 1 to change direction, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to fall until the pressure value of the pressure sensor 4 is larger than or equal to the set value X, the grain unloading is finished, and the system recovers the initial state.
Optionally, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to lift until the pressure value of the pressure sensor 4 is larger than or equal to a set value X, and meanwhile, the situation that the granary lifts in place triggers the first proximity switch 5 is met, the electromagnetic directional valve 1 controls the hydraulic grain unloading machine to stop, and grain unloading time is reserved. After the grain unloading is finished, the embedded controller 2 controls the electromagnetic directional valve 1 to change direction, the electromagnetic directional valve 1 controls the hydraulic grain unloading mechanism 7 to fall until the pressure value of the pressure sensor 4 is larger than or equal to the set value X, and meanwhile, the grain unloading completion of the granary falling in place and triggering the second proximity switch 6 is met, and the system recovers the initial state.
Specifically, X is 12.5MPa, and Y is 12.5 MPa.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, and all the equivalent modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides an automatic grain system of unloading of agricultural harvester, includes that granary, granary support and hydraulic pressure unload grain mechanism (7), and hydraulic pressure unloads grain mechanism (7) and includes oil tank, control oil pump and unload the grain hydro-cylinder, its characterized in that: the system also comprises an electromagnetic directional valve (1), an embedded controller (2), an operating handle (3) and a pressure sensor (4), wherein the electromagnetic directional valve (1) is arranged on an oil way of the grain unloading oil cylinder, and the electromagnetic directional valve (1) is used for controlling the hydraulic grain unloading mechanism (7) to lift, stop and fall; the embedded controller (2) is electrically connected with the control electromagnetic directional valve (1) and is used for controlling the electromagnetic directional valve (1); the operating handle (3) is electrically connected with the embedded controller (2) and comprises a starting button; the pressure sensor (4) is installed on the electromagnetic directional valve (1), is electrically connected with the embedded controller (2) and is used for detecting the pressure of a working oil port of the electromagnetic directional valve (1).
2. The agricultural harvester automatic grain unloading system of claim 1, wherein: the hydraulic grain unloading mechanism (7) is lifted to a pressure value of the pressure sensor (4) which is not less than a set value X, and the electromagnetic directional valve (1) is used for controlling the hydraulic grain unloading machine to stay; the hydraulic grain unloading mechanism (7) falls to a pressure value of the pressure sensor (4) which is not less than a set value X, and the embedded controller (2) is used for controlling the electromagnetic directional valve (1) to reset.
3. The agricultural harvester automatic grain unloading system of claim 1 or 2, wherein: the electromagnetic directional valve (1) is a two-position three-way electromagnetic valve, an oil return opening is communicated with the oil tank, a working oil opening is communicated with the grain unloading oil cylinder, an oil inlet is communicated with an oil outlet of the control oil pump, and an oil inlet of the control oil pump is communicated with the oil tank.
4. The agricultural harvester automatic grain unloading system of claim 3, wherein: the operating handle (3) also comprises an emergency stop and secondary grain unloading button which is electrically connected with the embedded controller (2).
5. The agricultural harvester automatic grain unloading system of claim 4, wherein: triggering a secondary grain unloading button, controlling the hydraulic grain unloading mechanism (7) to stay by the electromagnetic directional valve (1) when the pressure value of the pressure sensor (4) is less than or equal to a set value Y.
6. The agricultural harvester automatic grain unloading system of claim 5, wherein: the granary controller is characterized by further comprising a first proximity switch (5) and a second proximity switch (6), wherein the first proximity switch (5) is arranged on the upper portion of the granary support, is electrically connected with the embedded controller (2), and is used for detecting whether the granary is lifted in place or not; the second proximity switch (6) is arranged at the lower part of the granary, is electrically connected with the embedded controller (2) and is used for detecting whether the granary falls in place or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237510.5U CN210381922U (en) | 2019-07-30 | 2019-07-30 | Automatic grain system of unloading of agricultural harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237510.5U CN210381922U (en) | 2019-07-30 | 2019-07-30 | Automatic grain system of unloading of agricultural harvester |
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| Publication Number | Publication Date |
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| CN210381922U true CN210381922U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921237510.5U Active CN210381922U (en) | 2019-07-30 | 2019-07-30 | Automatic grain system of unloading of agricultural harvester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114868523A (en) * | 2022-03-30 | 2022-08-09 | 农业农村部南京农业机械化研究所 | Method for regulating and controlling pneumatic grain unloading system of harvester |
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2019
- 2019-07-30 CN CN201921237510.5U patent/CN210381922U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114868523A (en) * | 2022-03-30 | 2022-08-09 | 农业农村部南京农业机械化研究所 | Method for regulating and controlling pneumatic grain unloading system of harvester |
| CN114868523B (en) * | 2022-03-30 | 2023-05-23 | 农业农村部南京农业机械化研究所 | Regulating and controlling method for pneumatic grain unloading system of harvester |
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