CN219672736U - Harvesting machinery hydrostatic drive vehicle control system - Google Patents
Harvesting machinery hydrostatic drive vehicle control system Download PDFInfo
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- CN219672736U CN219672736U CN202320337055.6U CN202320337055U CN219672736U CN 219672736 U CN219672736 U CN 219672736U CN 202320337055 U CN202320337055 U CN 202320337055U CN 219672736 U CN219672736 U CN 219672736U
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- inclination angle
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- 238000003306 harvesting Methods 0.000 title claims abstract description 23
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 21
- 238000012806 monitoring device Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 7
- 230000009194 climbing Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model relates to a harvesting machinery hydrostatic drive vehicle control system which comprises a variable hydraulic power device, a hydraulic pump and a vehicle body inclination angle monitoring device, wherein the variable hydraulic power device is in transmission connection with an input shaft of a gearbox, an output shaft of the gearbox is in transmission connection with a drive axle, the hydraulic pump is in transmission connection with an engine, an outlet of the hydraulic pump is connected with a hydraulic inlet of the variable hydraulic power device, an inlet of the hydraulic pump is connected with a hydraulic outlet of the variable hydraulic power device, the vehicle body inclination angle monitoring device is arranged on a drive bridge, and a vehicle-mounted controller is connected with the vehicle body inclination angle monitoring device. The advantages are that: the rotating speed and the power output of the engine can be adjusted according to different operation modes; when the vehicle transitions, the posture of the vehicle body is monitored, so that the pressure of a walking hydraulic system is maintained at a lower level, and the service life of the hydraulic system is prolonged; when the vehicle transitions, the pressure of the traveling system is monitored, so that the pressure of the traveling hydraulic system is maintained at a lower level, and the service life of the hydraulic system is prolonged.
Description
Technical Field
The utility model relates to the technical field of harvester equipment control, in particular to a harvesting machinery hydrostatic drive vehicle control system.
Background
The hydrostatic drive technology is increasingly widely applied in the fields of engineering machinery, agricultural machinery and the like, and under different working conditions and different load states, the rotation speed of a vehicle engine, the displacement and the pressure of a pump and a motor of a hydrostatic running system are required to be controlled in order to realize optimal conversion of energy and good fuel economy.
At present, the hydrostatic drive type of grain combine harvester in the market mostly adopts the technical route of "variable pump + ration motor", and under vehicle work and transition mode, there are two main drawbacks:
1) The engine speed and the displacement of the traveling motor cannot be automatically judged and regulated along with the working conditions, and for different road conditions, the subjective judgment and operation of operators on the vehicle state are completely relied on, so that the fuel economy performance is low;
2) In the running process of the vehicle, in order to ensure enough driving force of the vehicle, the pressure of the system is often required to be improved, and the service life of the hydraulic system is influenced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a control system for a hydrostatic drive vehicle of a harvesting machine, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
a harvesting machine hydrostatic drive vehicle control system, the harvesting machine having a gearbox and an engine, the engine and gear switch of the gearbox being connected to the vehicle-mounted controller of the harvesting machine, respectively, characterized in that: the harvesting machinery hydrostatic drive vehicle control system comprises a variable hydraulic power device, a hydraulic pump and a vehicle body inclination angle monitoring device, wherein the variable hydraulic power device is in transmission connection with an input shaft of the gearbox, an output shaft of the gearbox is in transmission connection with a drive axle of the harvester, a pump shaft of the hydraulic pump is in transmission connection with a shaft of the engine, an outlet of the hydraulic pump is connected with a hydraulic inlet of the variable hydraulic power device through a hydraulic pipeline, an inlet of the hydraulic pump is connected with a hydraulic outlet of the variable hydraulic power device through a hydraulic pipeline, the vehicle body inclination angle monitoring device is arranged on a drive axle of the harvester, and the vehicle-mounted controller is connected with the vehicle body inclination angle monitoring device.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the variable hydraulic power device is a variable motor, and the variable motor is connected with the vehicle-mounted controller.
Further, the hydraulic line is provided with a pressure monitoring device for detecting the internal oil pressure, and the pressure monitoring device is connected with the vehicle-mounted controller
Further, the pressure monitoring device is a pressure sensor.
Further, the vehicle body inclination angle monitoring device is an inclination angle sensor.
The beneficial effects of the utility model are as follows:
1) The rotating speed and the power output of the engine can be adjusted according to different operation modes, so that good fuel economy is realized;
2) When the vehicle transitions, the vehicle body posture is monitored in real time, so that the pressure of a walking hydraulic system (specifically, the whole formed by a hydraulic pump, a variable hydraulic power device and a pipeline) is maintained at a lower level, and the service life of the hydraulic system is prolonged;
3) When the vehicle is in transition, the pressure of the traveling system is monitored in real time, so that the pressure of the traveling hydraulic system is maintained at a lower level, and the service life of the hydraulic system is prolonged.
Drawings
FIG. 1 is a schematic structural view of a harvesting machine hydrostatic drive vehicle control system of the present disclosure;
fig. 2 is a state diagram of the harvesting machine of the present utility model when climbing a hill.
In the drawings, the list of components represented by the various numbers is as follows:
2. an engine; 3. variable hydraulic power device; 4. a hydraulic pump; 5. a vehicle body inclination angle monitoring device; 6. pressure monitoring means.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Example 1
As shown in fig. 1 and 2, the harvesting machine hydrostatic drive vehicle control system of the present embodiment includes a gear box and an engine 2, a gear switch of the engine 2 and the gear box are respectively connected to a vehicle-mounted controller of the harvester, the harvesting machine hydrostatic drive vehicle control system includes a variable hydraulic power device 3, a hydraulic pump 4 and a vehicle body inclination angle monitoring device 5, the variable hydraulic power device 3 is in transmission connection with an input shaft of the gear box, an output shaft of the gear box is in transmission connection with a drive axle of the harvester, a pump shaft of the hydraulic pump 4 is in transmission connection with a shaft of the engine 2, an outlet of the hydraulic pump 4 is connected with a hydraulic inlet of the variable hydraulic power device 3 through a hydraulic line, an inlet of the hydraulic pump 4 is connected with a hydraulic outlet of the variable hydraulic power device 3, the vehicle body inclination angle monitoring device 5 is mounted on a drive bridge of the harvester, and the vehicle-mounted controller is connected with the vehicle body inclination angle monitoring device 5.
In this embodiment, the hydraulic pump 4 is mounted on the engine 2 in an in-line manner, and the two are connected to each other circumferentially, and the engine 2 supplies power for the operation of the hydraulic pump 4. The hydraulic pump 4 converts mechanical energy into hydraulic energy and transmits the hydraulic energy to the variable hydraulic power device 3, and the variable hydraulic power device 3 converts the hydraulic energy into mechanical energy and transmits the mechanical energy to the drive axle.
In this embodiment, the variable hydraulic power device 3 is a variable motor that is conventional in the market, and specific types of the variable hydraulic power device are flexibly and reasonably selected according to actual use requirements, which is not described herein. The regulator on the variable motor is connected with the vehicle-mounted controller, and the displacement of the variable motor is controlled by the regulator through the vehicle-mounted controller.
In this embodiment, the vehicle-mounted controller is a control system on the harvester, which belongs to the prior art, and the specific structure of the vehicle-mounted controller can refer to various existing harvesters, and will not be described herein.
The control system of the harvesting machine hydrostatic drive vehicle of the embodiment specifically controls as follows:
the harvester operation mode comprises an operation mode and a transition mode, and is specifically controlled as follows:
the harvester mainly comprises an operation mode including an operation mode and a transition mode in the operation process, and the specific control of the two different modes is as follows:
when the harvester is in the operation mode, the gear switch of the gearbox is in a low gear, and the rotating speed of the engine 2 is n 1 (maximum rotation speed allowed by actual work can be a range value), n 1 The displacement of the variable displacement hydraulic power unit 3 is q, which is the maximum value of the rotational speed of the engine 2 1 ，q 1 The maximum displacement of the variable displacement hydraulic power unit 3 (the maximum displacement of the actual operation may be a range value), and the displacement of the hydraulic pump 4 is q 1 ′，q 1 ' is the maximum value of the displacement of the hydraulic pump 4 (the maximum displacement of the actual operation may be a range value);
when the harvester is switched to a transfer mode, the gear switch of the gearbox is in a high gear, and the rotating speed of the engine 2 is changed from n 1 Reduced to n 2 (n 2 ＜n 1 ，n 2 For low rotation speed, the specific value is set according to the actual harvester performance), and the displacement of the variable hydraulic power unit 3 is set by q 1 Reduced to q 2 (q 2 ＜q 1 ，q 1 For low displacement, the specific value is set according to the performance of the actual variable hydraulic power unit 3), the displacement of the hydraulic pump 4 is kept at q 1 'A'; the vehicle body inclination angle monitoring device 5 is real-timeMonitoring the vehicle body inclination angle information of the harvester in the form of process, feeding back to the vehicle-mounted controller, judging that the harvester is in a climbing state if the vehicle body inclination angle exceeds a set value theta (namely the inclination angle of the vehicle body on the ground is namely the gradient), and controlling the displacement of the variable hydraulic power device 3 to be controlled by the vehicle-mounted controller to be equal to or smaller than q 2 Increase to q 1 。
In this embodiment, the vehicle body inclination angle monitoring device 5 is only required to be a conventional inclination angle sensor in the market, and specific models are flexibly and reasonably selected according to actual use requirements, which is not described herein.
Example 2
As shown in fig. 3, in the embodiment 1, a pressure monitoring device 6 for detecting the internal oil pressure is provided in the hydraulic line, and the pressure monitoring device 6 is connected to the in-vehicle controller.
The control method of the harvesting machinery hydrostatic drive vehicle control system of the embodiment specifically comprises the following steps:
the harvester mainly comprises an operation mode including an operation mode and a transition mode in the operation process, and the specific control of the two different modes is as follows:
when the harvester is in the operation mode, the gear switch of the gearbox is in a low gear, and the rotating speed of the engine 2 is n 1 ，n 1 The displacement of the variable displacement hydraulic power unit 3 is q, which is the maximum value of the rotational speed of the engine 2 1 ，q 1 The displacement of the hydraulic pump 4 is q, which is the maximum value of the displacement of the variable hydraulic power unit 3 1 ′，q 1 ' is the maximum value of the displacement of the hydraulic pump 4;
when the harvester is switched to a transfer mode, the gear switch of the gearbox is in a high gear, and the rotating speed of the engine 2 is changed from n 1 Reduced to n 2 The displacement of the variable hydraulic power unit 3 is represented by q 1 Reduced to q 2 The displacement of the hydraulic pump 4 is kept at q 1 'A'; the vehicle body inclination angle monitoring device 5 monitors the vehicle body inclination angle information in the harvester form process in real time and feeds back the vehicle body inclination angle information to the vehicle-mounted controller, and if the vehicle body inclination angle is detected to exceed the set valueTheta, judging that the harvester is in a climbing state, and controlling the displacement of the variable hydraulic power device 3 by the vehicle-mounted controller to be equal to q 2 Increase to q 1 The method comprises the steps of carrying out a first treatment on the surface of the In synchronization, the pressure monitoring device 6 monitors the hydraulic information in the pipeline in real time and feeds back the hydraulic information to the vehicle-mounted controller, and if the detected pressure exceeds the set value p 1 Judging that the harvester is in a climbing state, and controlling the displacement of the variable hydraulic power device 3 by the vehicle-mounted controller to be equal to q 2 Increase to q 1 . Wherein, the pressure monitoring and the vehicle body inclination angle monitoring are synchronously carried out, the sequence is not distinguished, any condition is satisfied, and the displacement of the variable motor is q 2 Increase to q 1 The pressure of the walking hydraulic system is reduced to a lower level while the driving force of the vehicle is ensured, and the service life of the hydraulic system is prolonged.
In this embodiment, the pressure monitoring device 6 is a conventional liquid pressure sensor in the market, and the specific model is flexibly and reasonably selected according to the actual use requirement, which is not described herein.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (5)
1. A harvesting machine hydrostatic drive vehicle control system, the harvesting machine having a gearbox and an engine (2), the engine (2) and a gear switch of the gearbox being connected to an on-board controller of the harvesting machine, respectively, characterized in that: the harvesting machinery hydrostatic drive vehicle control system comprises a variable hydraulic power device (3), a hydraulic pump (4) and a vehicle body inclination angle monitoring device (5), wherein the variable hydraulic power device (3) is in transmission connection with an input shaft of a gearbox, an output shaft of the gearbox is in transmission connection with a drive axle of a harvester, a pump shaft of the hydraulic pump (4) is in transmission connection with a shaft of an engine (2), an outlet of the hydraulic pump (4) is connected with a hydraulic inlet of the variable hydraulic power device (3) through a hydraulic pipeline, an inlet of the hydraulic pump (4) is connected with a hydraulic outlet of the variable hydraulic power device (3) through a hydraulic pipeline, the vehicle body inclination angle monitoring device (5) is arranged on a drive bridge of the harvester, and a vehicle-mounted controller is connected with the vehicle body inclination angle monitoring device (5).
2. A harvesting machine hydrostatic drive vehicle control system as defined by claim 1, wherein: the variable hydraulic power device (3) is a variable motor which is connected with the vehicle-mounted controller.
3. A harvesting machine hydrostatic drive vehicle control system as defined by claim 2, wherein: the hydraulic pipeline is provided with a pressure monitoring device (6) for detecting the internal oil pressure of the hydraulic pipeline, and the pressure monitoring device (6) is connected with the vehicle-mounted controller.
4. A harvesting machine hydrostatic drive vehicle control system as defined by claim 3, wherein: the pressure monitoring device (6) is a pressure sensor.
5. A harvesting machine hydrostatic drive vehicle control system as defined by claim 3, wherein: the vehicle body inclination angle monitoring device (5) is an inclination angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320337055.6U CN219672736U (en) | 2023-02-28 | 2023-02-28 | Harvesting machinery hydrostatic drive vehicle control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320337055.6U CN219672736U (en) | 2023-02-28 | 2023-02-28 | Harvesting machinery hydrostatic drive vehicle control system |
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| Publication Number | Publication Date |
|---|---|
| CN219672736U true CN219672736U (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320337055.6U Active CN219672736U (en) | 2023-02-28 | 2023-02-28 | Harvesting machinery hydrostatic drive vehicle control system |
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| Country | Link |
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| CN (1) | CN219672736U (en) |
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- 2023-02-28 CN CN202320337055.6U patent/CN219672736U/en active Active
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