CN217558700U - Harvester hydraulic control system and wheat harvester - Google Patents
Harvester hydraulic control system and wheat harvester Download PDFInfo
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- CN217558700U CN217558700U CN202221405919.5U CN202221405919U CN217558700U CN 217558700 U CN217558700 U CN 217558700U CN 202221405919 U CN202221405919 U CN 202221405919U CN 217558700 U CN217558700 U CN 217558700U
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Abstract
The utility model discloses a hydraulic control system of a harvester and a wheat harvester, wherein the hydraulic control system of the harvester comprises a hydraulic loop of a working device and is provided with an electromagnetic proportional reversing valve for controlling the working device; the fan hydraulic loop is provided with a fan driving valve group for controlling a fan speed regulation motor; and the intelligent controller is configured to be electrically connected with the electromagnetic proportional directional valve and the fan driving valve group respectively so as to control the working device and the fan speed regulating motor. The utility model discloses to header lift, reel lift, cylinder speed governing increase proportional control, can save the here operation of horn. And the hydraulic proportional driving control of the cleaning chamber fan is also added, and the rotating speed of the fan can be accurately controlled by combining electrical control so as to adapt to different working conditions. Additionally, the utility model discloses still realized hydrostatic walking electric proportional control, can control the walking of vehicle, park, the function of backing a car to and the control of direction machine, can realize that unmanned driving reaps the function of operation.
Description
Technical Field
The utility model belongs to the agricultural machine field specifically, relates to a wheat harvester and hydraulic control system thereof.
Background
Because the use environment is complex and based on cost consideration, the AI technology in the domestic agricultural machinery market is not generally and mature at present. Moreover, agricultural machinery is generally driven by a plurality of hydraulic systems, and intelligent control combined with the hydraulic systems is more difficult. The existing intelligent agricultural machinery is more limited to realizing economic basic function design, such as simple oil cylinder telescopic action control, motor forward and reverse rotation control and the like, but the existing intelligent agricultural machinery can not meet the demand of the vigorous development of the current agricultural machinery industry gradually.
SUMMERY OF THE UTILITY MODEL
To above-mentioned defect or not enough, the utility model provides a harvester hydraulic control system and wheat harvester can realize higher requirement integrate, automatic and intelligent design requirement.
In order to achieve the above object, the utility model provides a harvester hydraulic control system, include:
the working device hydraulic loop is provided with an electromagnetic proportional directional valve for controlling the working device;
the fan hydraulic loop is provided with a fan driving valve group for controlling a fan speed regulating motor;
and the intelligent controller is configured to be electrically connected with the electromagnetic proportional directional valve and the fan driving valve group respectively so as to control the working device and the fan speed regulating motor.
In some embodiments, the working device includes a header lift cylinder, a reel cylinder and a roller governor cylinder, the working device hydraulic circuit is provided with a multi-way valve, the multi-way valve includes a header master coupler for controlling the header lift cylinder, a reel master coupler for controlling the reel cylinder and a roller master coupler for controlling the roller governor cylinder, and the header master coupler, the reel master coupler and the roller master coupler are the electromagnetic proportional directional valve.
In some embodiments, the working device further comprises a grain unloading lifting oil cylinder, a grain unloading opening and closing motor and a main clutch oil cylinder, the multi-way valve further comprises a grain unloading lifting main valve unit for controlling the grain unloading lifting oil cylinder, a grain unloading opening and closing main valve unit for controlling the grain unloading opening and closing motor and a main clutch main valve unit for controlling the main clutch oil cylinder, the grain unloading lifting main valve unit, the grain unloading opening and closing main valve unit and the main clutch main valve unit are electromagnetic switch reversing valves, and the intelligent controller is further configured to be respectively connected with the grain unloading lifting main valve unit, the grain unloading opening and closing main valve unit and the main clutch main valve unit.
In some embodiments, the harvester hydraulic control system further comprises:
the hydraulic circuit of the steering oil cylinder is connected with the hydraulic circuit of the working device in parallel;
the first hydraulic pump is used for providing pressure oil for the steering oil cylinder hydraulic circuit and the working device hydraulic circuit through a first pumping oil way;
and the one-way stable flow dividing valve is arranged in the first pumping oil way and is used for stably supplying oil to the steering oil cylinder hydraulic circuit.
In some embodiments, the harvester hydraulic control system further comprises:
the second hydraulic pump is used for providing pressure oil for the fan hydraulic loop through a second pumping oil path;
wherein the first hydraulic pump and the second hydraulic pump constitute a double gear pump.
In some embodiments, the harvester hydraulic control system further comprises:
and the pressure oil filter is respectively arranged in the first pumping oil way and the second pumping oil way.
In some embodiments, the fan drive valve block is disposed in parallel with the fan governor motor and includes:
the valve bank oil inlet is connected with a motor oil inlet of the fan speed regulating motor in parallel to a pumping oil path of the fan hydraulic circuit;
the valve bank oil return port and a motor oil return port of the fan speed regulating motor are connected in parallel to an oil return path of the fan hydraulic loop;
the first internal valve group oil way is connected with the valve group oil inlet and the valve group oil return port and is provided with an electromagnetic switch valve; and
the second internal valve group oil way is connected with the valve group oil inlet and the valve group oil return port and is provided with an adjustable overflow valve with a proportional electromagnet;
the intelligent controller is respectively electrically connected with the electromagnetic switch valve and the proportional electromagnet of the adjustable overflow valve.
In some embodiments, the harvester hydraulic control system further comprises:
the walking hydraulic circuit comprises a walking motor and a walking variable pump for hydraulically driving the walking motor;
wherein, the intelligent control ware electricity is connected the walking variable pump in order to drive control the walking motor.
In some embodiments, the travel variable pump is a single direction variable electromagnetic plunger pump and the travel motor is a bi-directional fixed displacement plunger motor.
In some embodiments, the walking hydraulic circuit is a closed circuit.
Furthermore, the utility model also provides a wheat harvester, including foretell harvester hydraulic control system.
The utility model discloses an among harvester hydraulic control system and the wheat harvester, through the automatically controlled stepless speed regulation in order to realize the flexibility to fan speed governing motor of intelligent control ware to fan drive valves, need not adjust by manual mode. In particular, an electromagnetic proportional directional valve with an electric proportional magnet is arranged in a hydraulic circuit of the working device corresponding to each working device, and each working device is proportionally controlled in an electric control mode. Therefore, the intelligent controller is used for controlling the proportion of each electromagnetic proportional directional valve, so that the integrated control of each working device can be realized, and the flexible proportion control can be realized.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention, but do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a hydraulic schematic diagram of a harvester hydraulic control assembly system of the prior art;
fig. 2 is a hydraulic schematic diagram of a hydraulic control system of a harvester according to an embodiment of the present invention;
fig. 3, 4 and 5 are respectively enlarged schematic diagrams of respective internal structures of the multi-way valve, the single-way stable flow dividing valve and the fan driving valve group in fig. 2;
fig. 6 is a schematic general view of the overall hydraulic arrangement of a hydraulic control system of a harvester according to an embodiment of the present invention;
fig. 7 and 8 respectively illustrate a partial assembly schematic diagram of the walking hydraulic system in fig. 6; and
fig. 9 to 13 respectively show a partial assembly schematic diagram of the working hydraulic systems of fig. 6 except for the traveling hydraulic system.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
The harvester hydraulic control system and wheat harvester of the present invention are described below with reference to the accompanying drawings.
At present, the application of AI technology in the domestic agricultural machinery market is not mature. Taking fig. 1 as an example, the existing hydraulic control assembly system for a harvester includes a control valve set and a valve block body connected with the control valve set and an external device, an oil supply loop capable of being connected with an oil pump and an oil drainage loop capable of being connected with an oil tank are arranged in the valve block body, a flow distribution valve arranged in an insertion manner is arranged on the oil supply loop in the valve block body, a steering control loop connected with one output port of the flow distribution valve and a multi-path control loop connected in parallel and connected with the other output port of the flow distribution valve are arranged in the valve block body, the control valve set includes reversing valves arranged on the steering control loop and the multi-path control loop, and the working oil ports of the reversing valves on the multi-path control loop are connected with the insertion valves inserted in the valve block body.
The harvester hydraulic control assembly system shown in the figure 1 is reasonable in structure, adopts a single pump to work, is low in power consumption, can realize high-low pressure oil distribution way work and control flow distribution, and is simple in system composition and low in cost. The control valve of the hydraulic system is a switch valve, and simple actions of stretching of the oil cylinder and forward and reverse rotation of the cycloid hydraulic motor can be realized. However, the disadvantages are also obvious, for example, more flexible control cannot be realized, the corresponding control on the rotating speed of the fan, hydrostatic walking and the like is not available, and manual adjustment is needed.
In view of this, the utility model provides a novel harvester hydraulic control system. As shown in fig. 2, in one embodiment, the hydraulic harvester control system comprises:
the working device hydraulic loop is provided with an electromagnetic proportional directional valve for controlling the working device;
a fan hydraulic circuit provided with a fan drive valve group 134 for controlling the fan speed regulation motor 126;
an intelligent controller configured to electrically connect with the electromagnetic proportional directional valve and the fan drive valve bank 134 to control the working device and the fan governor motor 126, respectively.
The utility model aims at providing an intelligent harvester can each equipment of nimble control, realizes for example that the header goes up and down, reel goes up and down, cylinder stepless speed regulation, cleaning fan speed governing and even the automatic control of walking hydraulic pressure etc. and this all relates to hydraulic system, and the ordinary control system design of current wheat harvester can not satisfy intelligent control's demand. For this purpose, an electromagnetic proportional directional valve with an electric proportional magnet is arranged in the hydraulic circuit of the working device corresponding to each working device, and each working device is proportionally controlled in an electric control mode. Therefore, the intelligent controller is used for controlling the proportion of each electromagnetic proportional directional valve, so that the integrated control of each working device can be realized, and the flexible proportion control can be realized. In addition, the fan speed regulation control is also incorporated in the embodiment, manual regulation is not needed, and the fan driving valve group 134 can be subjected to proportional control through an intelligent controller, so that flexible stepless speed regulation of the fan speed regulation motor 126 is realized. Compared with the prior art shown in the figure 1, the lifting of the cutting table, the lifting of the reel, the opening and closing of grain unloading and the like can be realized by electric control. What is different is, the utility model discloses to header go up and down, reel go up and down etc. increased the proportional control function to still add cylinder speed governing proportional control, fan hydraulic pressure proportional control and the drive that will mention down, quiet hydraulic pressure walking electric proportional control, in order to satisfy the unmanned walking operation of wheat harvester.
As shown in fig. 2, the present embodiment includes a plurality of working devices, such as the header lift cylinder 80, the reel lift cylinder 70 and the drum governor cylinder 150, the hydraulic circuit of the working devices is provided with a multi-way valve 200, the multi-way valve 200 includes a header master valve 201 for controlling the header lift cylinder 80, a reel master valve 202 for controlling the reel lift cylinder 70 and a drum master valve 205 for controlling the drum governor cylinder 150, and referring to fig. 3, the header master valve 201, the reel master valve 202 and the drum master valve 205 are all the above-mentioned electromagnetic proportional directional valves. The multiple-way valve 200 is provided with a plurality of linkage plates, a first pumping oil path L1 is used for pumping pressure oil to an oil inlet P1 of the multiple-way valve 200, the pressure oil is distributed to the linkage plates, and each working device is independently controlled by the linkage plates, so that the intelligent controller can realize independent proportional control on each working device through a header main valve linkage 201, a reel main valve linkage 202, a roller main valve linkage 205 and the like, and control of header lifting and lowering positions, reel cylinder speed and roller speed regulation cylinders and the like can be conveniently and flexibly controlled.
In addition, the working device may further include a grain unloading lift cylinder 116, a grain unloading opening and closing motor 107, and a main clutch cylinder 102, the multi-way valve 200 further includes a grain unloading lift main valve coupler 206 for controlling the grain unloading lift cylinder 116, a grain unloading opening and closing main valve coupler 203 for controlling the grain unloading opening and closing motor 107, and a main clutch main valve coupler 204 for controlling the main clutch cylinder 102, the grain unloading lift main valve coupler 206, the grain unloading opening and closing main valve coupler 203, and the main clutch main valve coupler 204 are all electromagnetic switch directional valves, and the intelligent controller is further configured to be electrically connected with the grain unloading lift main valve coupler 206, the grain unloading opening and closing main valve coupler 203, and the main clutch main valve coupler 204, respectively. Wherein, the grain unloading lifting oil cylinder 116, the grain unloading opening and closing motor 107 and the main clutch oil cylinder 102 do not need to be controlled in proportion, only need to be controlled by a switch, but are also integrated into the control range of the intelligent controller.
Wherein, harvester hydraulic control system of this embodiment still includes:
the steering oil cylinder hydraulic circuit is connected with the working device hydraulic circuit in parallel;
the first hydraulic pump is used for providing pressure oil for a hydraulic loop of the steering oil cylinder and a hydraulic loop of the working device through a first pumping oil path L1;
and the one-way stable flow dividing valve 62 is arranged in the first pumping oil path L1 and is used for stably supplying oil to the hydraulic circuit of the steering oil cylinder.
It can be seen that the complete machine hydraulic control system of the present embodiment further integrates a steering cylinder hydraulic circuit, and a part of the pumping pressure oil of the first pumping oil path L1 is supplied to the oil inlet P2 of the full hydraulic steering gear 22 and the steering cylinder 40, and another part is supplied to the oil inlet P1 of the multi-way valve 200 and each working device. The fully hydraulic steering gear 22 is well known to those skilled in the art and its construction and function will not be described in great detail herein.
It should be noted that the pumping-pressure oil of the first pumping oil passage L1 is branched by the one-way steady flow dividing valve 62. The one-way steady diverter valve 62 is used to preferentially ensure supply to the full hydraulic steering gear 22 and the steering cylinder 40. Specifically, as shown in fig. 2 and 4, the pumping pressure oil of the first pumping oil path L1 enters the port A0' of the one-way stable bypass valve 62, a part of the pumping pressure oil flows to the port A2' through the bidirectional hydraulic control relief valve, and the other part of the pumping pressure oil flows to the port A1' through the throttle valve. The two-way pilot operated relief valve can be switched on only when the post-valve oil pressure of the throttle valve is sufficiently high, in other words, only the pressure oil flowing to the port A1 'is preferentially guaranteed, and then the partial flow to the port A2' is possible. In addition, the pressure oil way of the oil port flowing to the A1' is also connected with a safety overflow valve so as to ensure that the pressure oil flowing to the steering oil cylinder does not exceed the standard and the system is safer.
Referring to fig. 2, the first hydraulic pump supplies pressure oil to the steering cylinder hydraulic circuit and the working device hydraulic circuit together through a first pumping oil passage L1. In addition, harvester hydraulic control system still includes:
the second hydraulic pump provides pressure oil for the fan hydraulic loop through a second pumping oil path L2;
the first hydraulic pump and the second hydraulic pump form a double gear pump 58.
Therefore, in the embodiment, the dual pump is used to output two paths of pressure oil, and the fan speed-regulating motor 126 is also brought into the control range of the intelligent controller. Wherein, referring to fig. 2, the hydraulic control system of the harvester may further comprise a first oil filter 68 and a second oil filter 141 respectively arranged in the first pumping oil path L1 and the second pumping oil path L2 for respectively cleaning the filtered pressure oil.
Referring to fig. 2 and 5, the fan drive valve set 134 is disposed in parallel with the fan governor motor 126 and includes:
the valve bank oil inlet P3 is connected with a motor oil inlet of the fan speed regulating motor 126 in parallel to a pumping oil path of the fan hydraulic circuit;
the valve bank oil return port and a motor oil return port T3 of the fan speed regulation motor 126 are connected to an oil return oil path of the fan hydraulic circuit in parallel;
the first internal valve group oil way is connected with the valve group oil inlet P3 and the valve group oil return port T3 and is provided with an electromagnetic switch valve A; and
the second internal valve group oil way is used for connecting the valve group oil inlet P3 with the valve group oil return port T3 and is provided with an adjustable overflow valve B with a proportional electromagnet;
wherein, the intelligent controller is respectively electrically connected with the electromagnetic switch valve A and the proportional electromagnet of the adjustable overflow valve B.
Referring to fig. 5, a part of the pressure oil pumped by the second pumping oil path L2 flows to the P3 port of the fan driving valve group 134, and the other part of the pressure oil flows to the left port of the fan governor motor 126. Pressure oil entering the fan drive valve group 134 flows through the electromagnetic switch valve a to the right oil port of the fan speed control motor 126 via the T3 oil port, and flows through the adjustable overflow valve B to the right oil port of the fan speed control motor 126 via the T3 oil port. As can be seen, the fan drive valve block 134 is provided in parallel with the fan governor motor 126. In the power-off state of the electromagnet Y13, the electromagnetic switch valve a is turned on, almost all the pressure oil pumped by the second pumping oil path L2 flows to the fan driving valve group 134, and almost no pressure oil drives the fan speed regulating motor 126. When the electromagnet Y13 is powered, the electromagnetic switch valve a is turned off, and at this time, the set overflow pressure of the adjustable overflow valve B is adjusted by controlling the adjustable electromagnet Y14, that is, the oil pressure and the flow rate of the pressure oil pumped by the second pumping oil path L2 to the fan speed regulation motor 126 are controlled. Therefore, the intelligent controller controls the electromagnet Y13 and the electromagnet Y14 in the fan driving valve group 134, and the stepless speed regulation of the fan speed regulation motor can be realized.
Further, referring to fig. 2, the hydraulic control system of the harvester of the present embodiment may further include:
a traveling hydraulic circuit including a traveling motor 13 and a traveling variable pump 19 for hydraulically driving the traveling motor 13; wherein, the intelligent controller is electrically connected with the walking variable pump 19 to drive and control the walking motor 13.
Thus, the embodiment further realizes intelligent walking control of the harvester. Wherein in particular the walking hydraulic circuit is a closed circuit. The traveling variable pump 19 is a unidirectional variable electromagnetic plunger pump, and the traveling motor 13 is a bidirectional quantitative plunger motor.
Fig. 2 is a schematic diagram of a whole hydraulic system of the harvester, which can be divided into a walking hydraulic system and a working hydraulic system. The walking hydraulic system adopts closed transmission formed by connecting a unidirectional variable electromagnetic plunger pump and a bidirectional quantitative plunger motor, and realizes the proportional control of forward and backward by receiving an analog signal of a controller. The specific control is as follows: the electric signal current size that the electromagnetism plunger pump received changes, and the angle of the inside sloping cam plate of electromagnetism plunger pump and axis changes, and then the oil feed flow size that two-way ration plunger motor obtained all can change with the direction, and the plunger motor drives the walking gearbox to realize the control of walking. The working hydraulic system comprises: the proportional electromagnetic valve can control the opening and closing of the valve port by receiving the analog signal of the intelligent controller, thereby controlling the lifting of the cutting table, the lifting of the reel, the speed regulation of the roller and the speed of the speed regulation. A fan speed regulating motor (namely a gear motor) for driving a fan of the wheat harvester is proportionally controlled by a fan driving valve group. The three paths of grain unloading opening and closing, main clutch opening and closing and grain unloading lifting are controlled by a common switch without a proportional adjusting function.
Specifically, referring to fig. 3, the multiplex valve 200 includes, from left to right:
the first path is that the header is lifted, when the reversing valve moves to the lower Y1, the header lifting oil cylinder extends out so as to drive the header to be lifted, when the reversing valve moves to the upper Y2, the header lifting oil cylinder retracts so as to drive the header to descend, and the lifting speed can be controlled by an electric signal;
the second path is lifting of the reel, when the reversing valve moves to the lower Y3, the reel oil cylinder extends out to drive the reel to rise, when the reversing valve moves to the upper Y4, the reel oil cylinder retracts to drive the reel to fall, and the speed can be controlled by an electric signal;
the third path is grain unloading opening and closing, when the reversing valve moves to the lower Y5, the cycloid hydraulic motor rotates clockwise so as to drive the grain unloading cylinder to open, and when the reversing valve moves to the upper Y6, the cycloid hydraulic motor rotates anticlockwise so as to drive the grain unloading cylinder to close;
the fourth way is the opening and closing of the main clutch, when the reversing valve moves to the lower Y7, the hydraulic main clutch oil cylinder extends out so as to drive the main clutch to be closed, and when the reversing valve moves to the upper Y8, the hydraulic main clutch oil cylinder retracts so as to drive the main clutch to be closed;
the fifth way is the speed regulation of the roller, when the reversing valve moves to the Y9 below, the built-in oil cylinder of the stepless speed change wheel extends out so as to drive the rotating speed of the roller to rise, when the reversing valve moves to the Y10 above, the built-in oil cylinder of the stepless speed change wheel retracts so as to drive the rotating speed of the roller to reduce, and the lifting speed can be controlled by an electric signal;
and the sixth way is grain unloading lifting, the grain unloading oil cylinder extends out when the reversing valve moves to the Y11 below, so that the grain unloading cylinder is driven to rise, and the grain unloading oil cylinder retracts when the reversing valve moves to the Y12 above, so that the grain unloading cylinder is driven to lower.
A fan control part: when an electromagnet Y13 of the fan driving valve group 134 is in a power-off state, the electromagnetic switch valve A is conducted when not working normally, hydraulic oil from the gear pump directly returns to the oil tank, and at the moment, the fan driving motor 126 does not rotate; rated pressure of the adjustable overflow valve B during working, the flow size controllable by adjusting the electromagnetic valve Y2 at the moment, and the rotating speed of the fan driving motor 126 can be adjusted, so that a cleaning and sorting chamber fan is driven.
A steering system part: the pressure is supplied from the gear pump, the stable flow required by the full hydraulic steering gear 22 is ensured through the one-way stable flow dividing valve 62, the full hydraulic steering gear 22 is acted by hydraulic oil, and the servo power assisting effect is realized on the steering of the human hand-held steering gear, so that the stable extension and retraction of the steering oil cylinder 40 are ensured.
According to the schematic diagram of the overall hydraulic system in fig. 2 and the schematic overall diagram of the overall hydraulic arrangement in fig. 6, for convenience of description, the overall hydraulic system can be divided into seven parts, i.e., the first traveling hydraulic system in fig. 7, the second working hydraulic system in fig. 8, the first working hydraulic system in fig. 9, the second working hydraulic system in fig. 10, the third working hydraulic system in fig. 11, the fourth working hydraulic system in fig. 12, and the fifth working hydraulic system in fig. 13.
Referring to the hydraulic traveling system shown in fig. 7, a combined sealing washer 1, an oil return port connector 2 and an oil return pipe 16 are used to connect a radiator 9 with a hydraulic oil tank 15; a combined sealing washer 1, an oil dispersion and return port joint 2, an oil dispersion and inlet pipe 3, an oil return three-way joint 4 and a plunger pump oil return rubber pipe 5 are used for connecting a radiator 9 and a walking pump 19; a hydraulic oil tank 15 and a walking pump 19 are connected by a walking pump oil pumping hose 14, a direction-adjustable end straight-through elbow 17 and a ferrule type combined elbow 18; a combined sealing washer 1, an oil dispersion and return port joint 2, an oil dispersion and inlet pipe 3, an oil return three-way joint 4 and a motor oil return pipe 8 are used for connecting a radiator 9 and a traveling motor 13; a traveling motor 13 and a traveling pump 19 are connected by a plunger pump motor connecting pipe 7 with a plunger pump oil return joint 6, a flange fixing bolt 10, a gasket 11 and a split flange 12.
Referring to a second walking hydraulic system of fig. 8, the reference numerals are a bolt 20, a washer 21, a full hydraulic steering gear 22, a combined sealing washer 23, an end through joint body 24, a first steering connection hose 25, a second steering connection hose 26, a first steering oil pipe upper 27, a first steering oil pipe lower 28, a first steering oil return pipe 29, a first steering oil inlet pipe 30, a second steering oil pipe upper 31, a second steering oil pipe lower 32, a second steering oil return pipe 33, a second steering oil inlet pipe 34, a third steering oil pipe lower 35, a third steering oil pipe upper 36, a second steering high-pressure rubber pipe combination 37, a first steering high-pressure rubber pipe combination 38, a tie 39, a steering oil cylinder 40, a steering oil return rubber pipe 41, a steering oil inlet rubber pipe 42, a fourth steering oil return pipe 43, and a single-stable valve oil return pipe 44.
Wherein, the combined sealing washer 23, the end straight joint body 24, the monostable valve oil return pipe 44, the steering oil return rubber pipe 41, the steering oil inlet rubber pipe 42, the second steering oil return pipe 33, the second steering oil inlet pipe 34, the first steering oil return pipe 29, the first steering oil inlet pipe 30, the second steering connecting hose 26, the one-way stable flow divider 62, the hydraulic oil tank 15 and the full hydraulic steering gear 22 are used for connection; the full hydraulic steering gear 22 is connected with the steering oil cylinder 40 through a combined sealing washer 23, an end straight joint body 24, a first steering connecting hose 25, a first steering oil pipe upper 27, a first steering oil pipe lower 28, a second steering oil pipe upper 31, a second steering oil pipe lower 32, a third steering oil pipe lower 35, a third steering oil pipe upper 36, a second steering high-pressure rubber pipe combination 37, a first steering high-pressure rubber pipe combination 38 and a binding belt 39.
Referring to the working hydraulic system of fig. 9, it includes a screw 45, a gasket 46, a gear pump lower oil pipe joint 47, a throat hoop 48, a gear pump oil inlet rubber pipe 49, an end straight joint body 50, a combined sealing gasket 51, an end straight joint body 52, a multi-way valve oil return rubber pipe 53, a proportional solenoid valve 54, a monostable valve oil inlet rubber pipe 55, a gear pump oil inlet pipe joint 56, a hydropneumatic O-shaped rubber sealing ring 57, a duplicate gear pump 58, an O-shaped rubber sealing ring 59, an end straight conical hole joint body 60, a gasket 61, a one-way stable flow divider valve 62, a bolt 63, a combined sealing gasket 64, an end straight joint body 65, a multi-way valve oil inlet rubber pipe 66, a joint 67, a first oil filter 68, and a multi-way valve oil inlet rubber pipe 69.
The duplicate gear pump 58 is connected with the hydraulic oil tank 15 by a screw 45, a gasket 46, a gear pump lower oil pipe joint 47, a throat hoop 48 and a gear pump oil inlet rubber pipe 49; a gear pump 58 is connected with a one-way stable flow divider valve 62 by using a monostable valve oil inlet rubber tube 55, a gear pump oil pipe joint 56, a hydropneumatic O-shaped rubber sealing ring 57, a straight-through end taper hole joint body 60 and a gasket 61;
the one-way stable flow dividing valve 62 is connected with a first pressure oil filter 68 by a combined sealing washer 64, an end straight-through joint body 65 and a multi-way valve oil inlet rubber pipe 66; the first oil filter 68 is connected with the proportional solenoid valve 54 by a joint 67, a multi-way valve oil inlet rubber tube 69, an end straight joint body 50 and a combined sealing washer 51; the hydraulic oil tank 15 is connected with a proportional solenoid valve 54 by a combined sealing washer 51, an end straight-through joint body 52 and a multi-way valve oil return rubber pipe 53.
Referring to fig. 10, the second working hydraulic system includes a reel cylinder 70, a reel lift oil pipe right 71, a bolt 72, a washer 73, a reducing tee joint 74, a reel lift oil pipe left 75, a transition oil pipe seam 76, a quick joint assembly 77, a reel lift soft oil pipe 78, a cutting sleeve type through joint body 79, a third reel lift oil pipe 80, a second reel lift oil pipe 81, a first reel lift oil pipe 82, an end through joint body 83, a combined sealing washer 84, a first cutting table oil inlet pipe 85, a second cutting table oil inlet 86, a third cutting table oil inlet pipe 87, a cutting table lift cylinder 88, a slow drop valve 89, a cutting table soft oil pipe assembly 90, and a cutting sleeve type tee joint 91.
According to fig. 10, the reel oil cylinder 70 is connected with the proportional solenoid valve 54 by using a reel oil lifting pipe right 71, a bolt 72, a washer 73, a reducing tee joint 74, a reel oil lifting pipe left 75, a transition oil pipe seam 76, a quick joint assembly 77, a reel oil lifting soft oil pipe 78, a ferrule type straight joint body 79, a third reel oil lifting pipe 80, a second reel oil lifting pipe 81, a first reel oil lifting pipe 82, an end straight joint body 83 and a combined washer 84; the header lift cylinder 88 is connected with the proportional solenoid valve 54 by an end straight joint body 83, a combined sealing washer 84, a first header oil inlet pipe 85, a second header oil inlet 86, a third header oil inlet pipe 87, a slow descending valve 89, a header soft oil pipe assembly 90 and a ferrule type three-way pipe joint 91.
Referring to the third working hydraulic system of fig. 11, the third working hydraulic system includes a combined sealing washer 92, a joint body 93, a straight-through end joint body 94, a second main hydraulic clutch oil pipe 95, a first main hydraulic clutch oil pipe 96, a second unloading oil pipe 97, a first unloading oil pipe 98, a fourth main hydraulic clutch oil pipe 99, a third main hydraulic clutch oil pipe 100, a soft unloading oil pipe 101, a main hydraulic clutch cylinder 102, a third unloading oil pipe 103, a fourth unloading oil pipe 104, a first motor oil pipe 105, a second motor oil pipe 106, and a cycloid hydraulic motor 107.
According to fig. 11, the proportional solenoid valve 54 and the hydraulic main clutch cylinder 102 are connected by a combined sealing washer 92, a joint body 93, an end through joint body 94, a second hydraulic main clutch oil pipe 95, a first hydraulic main clutch oil pipe 96, a fourth hydraulic main clutch oil pipe 99, a third hydraulic main clutch oil pipe 100 and a grain unloading soft oil pipe 101; the proportional solenoid valve 54 is connected with the cycloid hydraulic motor 107 by a combined sealing washer 92, an end straight-through joint body 94, a second grain unloading oil pipe 97, a first grain unloading oil pipe 98, a third grain unloading oil pipe 103, a fourth grain unloading oil pipe 104, a first motor oil pipe 105 and a second motor oil pipe 106.
Referring to the fourth working hydraulic system of fig. 12, the fourth working hydraulic system includes a combined sealing washer 108, a straight-through end throttling joint body 109, a first unloading lift oil pipe 110, a second unloading lift oil pipe 111, a third unloading lift oil pipe 112, a straight-through plate joint base 113, a straight-through plate pipe joint 114, a soft unloading oil pipe 115, an unloading oil cylinder 116, a first drum speed changing oil pipe 117, a sleeve type bent pipe joint 118, a straight-through plate joint support plate 119, a second drum speed changing oil pipe 120, and a third drum speed changing oil pipe 121.
According to fig. 12, the proportional solenoid valve 54 and the unloading oil cylinder 116 are connected by a combined sealing washer 108, an end through throttling joint body 109, a first unloading lifting oil pipe 110, a second unloading lifting oil pipe 111, a third unloading lifting oil pipe 112, a through plate joint seat 113, a through plate through pipe joint 114 and an unloading soft oil pipe 115;
the proportional solenoid valve 54 is connected with the oil port joint of the roller speed change wheel by a first roller speed change oil pipe 117, a cutting sleeve type plate passing elbow pipe joint 118, a plate passing joint support plate 119, a second roller speed change oil pipe 120 and a third roller speed change oil pipe 121.
Referring to the working hydraulic system five of fig. 13, the working hydraulic system five includes a gasket 122, a gasket 123, an end through joint body 124, a combined sealing gasket 125, a fan speed regulation motor 126, a bolt 127, a fan motor oil return hose 128, a fan motor oil drain hose 129, a fan motor oil inlet hose 130, a gasket 131, a gasket 132, a joint 133, a motor drive valve group 134, a combined sealing gasket 135, an end through joint body 136, a wind control valve oil return hose 137, a fourth wind control valve oil return hose 138, a wind control valve oil inlet hose 139, a joint 140, a second oil filter 141, a bolt 142, a second wind control valve oil inlet hose 143, and a joint 144.
According to fig. 13, the fan speed regulation motor 126 and the motor drive valve group 134 are connected by the end straight-through joint body 124, the combined sealing washer 125, the fan motor oil return hose 128, the fan motor oil discharge hose 129, the fan motor oil inlet hose 130, the joint 133, the combined sealing washer 135 and the end straight-through joint body 136; the motor driving valve group 134 is connected with a second pressure oil filter 141 through a connector 133, a wind control valve oil inlet rubber pipe 139 and a connector 140; the second pressure oil filter 141 is connected with the gear pump 58 through a joint 140 and a second air control valve oil inlet rubber pipe 143; the motor driving valve group 134 is connected with the hydraulic oil tank 15 through a joint 133, a combined sealing washer 135, an end through joint body 136, a wind control valve oil return rubber pipe 137 and a fourth wind control valve oil return pipe 138.
To sum up, according to the utility model discloses an increase proportional control to header lift, reel lift, cylinder speed governing among the wheat harvester, compare in ordinary wheat harvester model, because the reason on the undulation on road surface, obstacle, crop lodging needs the height and the cylinder rotational speed of the real-time adjustment header of locomotive, reel, the utility model discloses combine electric control can save the here operation of locomotive. And, the utility model discloses clean room fan hydraulic pressure proportion drive control has still been increased, and ordinary wheat harvester model uncontrollable rotational speed in the operation, or few mechanical control and difficult control rotational speed, to operation environment adaptability on the low side, the utility model discloses combine electrical control can accurate control fan rotational speed in order to adapt to different work condition. Additionally, the utility model discloses still realized hydrostatic walking electric proportional control, can control the walking of vehicle, park, the function of backing a car to and the control of direction machine, can realize that unmanned driving reaps the function of operation.
It should be noted that the above embodiment with reference to the attached drawings relates to an artificial intelligence wheat harvester, and is more expandable to harvesters such as corn and rice.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (11)
1. A harvester hydraulic control system, comprising:
the working device hydraulic loop is provided with an electromagnetic proportional directional valve for controlling the working device;
the fan hydraulic circuit is provided with a fan driving valve group (134) for controlling a fan speed regulating motor (126);
an intelligent controller configured to electrically connect with the electromagnetic proportional directional valve and the fan drive valve block (134) to control the working device and the fan governor motor (126), respectively.
2. The hydraulic harvester control system according to claim 1, wherein the working device comprises a header lift cylinder (80), a reel pulling cylinder (70) and a roller speed regulation cylinder (150), the hydraulic circuit of the working device is provided with a multi-way valve (200), the multi-way valve (200) comprises a header main valve coupler (201) for controlling the header lift cylinder (80), a reel pulling main valve coupler (202) for controlling the reel pulling cylinder (70) and a roller main valve coupler (205) for controlling the roller speed regulation cylinder (150), and the header main valve coupler (201), the reel pulling main valve coupler (202) and the roller main valve coupler (205) are the electromagnetic proportional directional valve.
3. The hydraulic control system for the harvester according to claim 2, wherein the working device further comprises a grain unloading lift cylinder (116), a grain unloading opening and closing motor (107) and a main clutch cylinder (102), the multi-way valve (200) further comprises a grain unloading lift master valve unit (206) for controlling the grain unloading lift cylinder (116), a grain unloading opening and closing master valve unit (203) for controlling the grain unloading opening and closing motor (107) and a main clutch master valve unit (204) for controlling the main clutch cylinder (102), the grain unloading lift master valve unit (206), the grain unloading opening and closing master valve unit (203) and the main clutch master valve unit (204) are all electromagnetic switch reversing valves, and the intelligent controller is further configured to be electrically connected with the grain unloading lift master valve unit (206), the grain unloading opening and closing master valve unit (203) and the main clutch master valve unit (204) respectively.
4. The harvester hydraulic control system of claim 1, further comprising:
the hydraulic circuit of the steering oil cylinder is connected with the hydraulic circuit of the working device in parallel;
the first hydraulic pump is used for providing pressure oil for the steering oil cylinder hydraulic circuit and the working device hydraulic circuit through a first pumping oil path (L1);
and the one-way stable flow dividing valve (62) is arranged in the first pumping oil path (L1) and is used for stably supplying oil to the steering oil cylinder hydraulic circuit.
5. The harvester hydraulic control system of claim 4, further comprising:
the second hydraulic pump is used for providing pressure oil for the fan hydraulic loop through a second pumping oil path (L2);
wherein the first hydraulic pump and the second hydraulic pump form a double gear pump (58).
6. The harvester hydraulic control system of claim 5, further comprising:
and pressure oil filters (68, 141) respectively arranged in the first pumping oil path (L1) and the second pumping oil path (L2).
7. The harvester hydraulic control system of any one of claims 1 to 6, wherein the fan drive valve block (134) is disposed in parallel with the fan governor motor (126) and includes:
the valve group oil inlet (P3) is connected to a pumping oil path of the fan hydraulic circuit in parallel with a motor oil inlet of the fan speed regulation motor (126);
the valve bank oil return port and a motor oil return port of the fan speed regulation motor (126) are connected to an oil return oil circuit of the fan hydraulic circuit in parallel;
the first internal valve group oil way is connected with the valve group oil inlet (P3) and the valve group oil return port (T3) and is provided with an electromagnetic switch valve (A); and
the second internal valve group oil way is connected with the valve group oil inlet (P3) and the valve group oil return port (T3) and is provided with an adjustable overflow valve (B) with a proportional electromagnet;
the intelligent controller is electrically connected with the proportional electromagnets of the electromagnetic switch valve (A) and the adjustable overflow valve (B) respectively.
8. The harvester hydraulic control system of claim 7, further comprising:
a travel hydraulic circuit including a travel motor (13) and a travel variable pump (19) for hydraulically driving the travel motor (13);
wherein the intelligent controller is electrically connected with the walking variable pump (19) to drive and control the walking motor (13).
9. The harvester hydraulic control system of claim 8, wherein the travel variable pump (19) is a single direction variable electromagnetic ram pump and the travel motor (13) is a bi-directional fixed displacement ram motor.
10. The harvester hydraulic control system of claim 8, wherein the walking hydraulic circuit is a closed circuit.
11. A wheat harvester, characterized in that it comprises a hydraulic harvester control system according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221405919.5U CN217558700U (en) | 2022-06-06 | 2022-06-06 | Harvester hydraulic control system and wheat harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221405919.5U CN217558700U (en) | 2022-06-06 | 2022-06-06 | Harvester hydraulic control system and wheat harvester |
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| CN217558700U true CN217558700U (en) | 2022-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538164A (en) * | 2023-07-04 | 2023-08-04 | 临工重机股份有限公司 | Traveling device of overhead working truck, traveling correction method thereof and overhead working truck |
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2022
- 2022-06-06 CN CN202221405919.5U patent/CN217558700U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538164A (en) * | 2023-07-04 | 2023-08-04 | 临工重机股份有限公司 | Traveling device of overhead working truck, traveling correction method thereof and overhead working truck |
| CN116538164B (en) * | 2023-07-04 | 2023-09-15 | 临工重机股份有限公司 | Traveling device of overhead working truck, traveling correction method thereof and overhead working truck |
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