CN110936814B - Electro-hydraulic walking clutch system of harvesting machine - Google Patents
Electro-hydraulic walking clutch system of harvesting machine Download PDFInfo
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- CN110936814B CN110936814B CN201911239144.1A CN201911239144A CN110936814B CN 110936814 B CN110936814 B CN 110936814B CN 201911239144 A CN201911239144 A CN 201911239144A CN 110936814 B CN110936814 B CN 110936814B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
Abstract
The invention belongs to the technical field of mechanical transmission, and particularly relates to an electro-hydraulic walking clutch system of a harvesting machine, which comprises a hydraulic gear pump, a connecting hydraulic pipeline, a power-assisted clutch device, an electromagnetic directional valve, a brake pedal device, a power supply, a one-rod operation control device, a connecting wire harness and the like, wherein after the automatic separation and the multi-stage gear selection of the walking clutch are realized by controlling the one-rod operation control device, the one-rod operation control device is loosened, the walking clutch is automatically combined, the right foot pedal accelerator pedal is stepped on to walk, the electro-hydraulic control of the walking clutch is finally realized, the left foot of a driver is completely liberated, the one-rod operation is controlled by a right hand electric liquid, the functions of the walking clutch separation, the multi-stage gear selection, the clutch combination, the walking operation of the agricultural combined harvesting machine and the like are realized, the labor intensity of the driver is, the maintenance cost is reduced, the whole machine is safer and more reliable, and a user can obtain more benefits.
Description
Technical Field
The invention belongs to the technical field of mechanical transmission, and particularly relates to an electro-hydraulic traveling clutch system of a harvesting machine.
Background
China is a big agricultural country, crops are various, the traditional crop harvesting mode adopts manual operation, the efficiency is low, the labor intensity is high, and more crops adopt a mechanical harvesting mode along with the development of science and technology. At present, a general harvester such as a grain combine harvester, a peanut harvester, a corn harvester and the like mainly uses a drive axle box which is in left pedal clutch and right manual gear shifting, the operation of the operation mechanism is complex, the labor intensity is high, the working efficiency is low, the gear shifting is carried out after the power is cut off by pedaling a clutch, and the problems that a clutch plate is easy to sinter, damage and the like are easily caused when the clutch works in a half-clutch state. In order to solve the problems, an electro-hydraulic walking clutch system of the harvesting machine is needed to be designed.
Disclosure of Invention
The invention aims to provide an electro-hydraulic walking clutch system of a harvesting machine, which is used for realizing one-rod operation of right hand electric control, realizing the functions of walking clutch separation, multi-stage gear selection, clutch combination, vehicle walking and the like, reducing the labor intensity of a driver, improving the reliability of a product, greatly shortening the walking operation time and reducing the maintenance cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an electro-hydraulic walking clutch system of harvesting machinery comprises a hydraulic control system, an electric system, a brake pedal device, a one-rod operating device, a walking clutch driving crank arm, a clutch pressure plate and a return spring; wherein the content of the first and second substances,
the electric system comprises a clutch switch, an electronic button and two electromagnetic coils;
the hydraulic control system is connected with the electric system through two electromagnetic coils;
the brake pedal device is connected with the electrical system through a clutch switch, and controls the electrification of the two electromagnetic coils by controlling the closing of the clutch switch, so that the flow direction of hydraulic oil in the hydraulic control system is controlled;
the electronic button is arranged on a lever control device, and the electronic button is manually operated to control the electrification of the two electromagnetic coils so as to control the flow direction of hydraulic oil in the hydraulic control system;
one end of the walking clutch driving crank arm is connected with the hydraulic control system, and the other end of the walking clutch driving crank arm is connected with the clutch pressure plate; and a return spring is arranged at the bottom of the clutch pressure plate, and the hydraulic control system controls the walking clutch to drive the crank arm to rotate so as to drive the clutch pressure plate to move, thereby controlling the separation and combination of the clutch.
Furthermore, the hydraulic control system comprises a hydraulic oil tank, a hydraulic gear pump, an electromagnetic directional valve and a power-assisted clutch device; one end of the hydraulic gear pump is connected with a hydraulic oil tank through a hydraulic pipeline, and the other end of the hydraulic gear pump is connected with an electromagnetic directional valve through a hydraulic pipeline; the electromagnetic directional valve is provided with a multi-way valve, and the multi-way valve is used for controlling oil inlet and oil return of hydraulic oil; the power-assisted clutch device is connected with the electromagnetic directional valve and the walking clutch driving crank arm respectively, the electromagnetic directional valve controls a piston rod of the power-assisted clutch device to stretch, the piston rod of the power-assisted clutch device pushes the walking clutch driving crank arm to rotate, and then the clutch pressure plate moves, so that the clutch is separated and controlled in a combined mode.
Furthermore, the electromagnetic directional valve comprises a combined valve block, a two-position two-way one-way electromagnetic valve, a two-position three-way electromagnetic directional valve, a first overflow valve, a second overflow valve and a throttle valve; the combined valve block is a carrier of a two-position two-way one-way electromagnetic valve, a two-position three-way electromagnetic directional valve, a first overflow valve, a second overflow valve and a throttle valve; the electromagnetic directional valve is internally divided into three pipelines, wherein the two-position two-way one-way electromagnetic valve is arranged on the first pipeline and is connected with an oil inlet of the multi-way valve; the overflow valve I is arranged on the pipeline II and is connected with the hydraulic oil tank through an oil return port of the multi-way valve; the two-position three-way electromagnetic directional valve is arranged on the third pipeline, is connected with the power-assisted clutch device and is used for controlling the expansion of a piston rod of the power-assisted clutch device; the two-position three-way electromagnetic directional valve is also connected with the first pipeline through two branch pipelines respectively, a throttle valve is arranged on one branch pipeline of the two branch pipelines, and an overflow valve is arranged on the other branch pipeline.
Further, the electrical system further comprises a main switch and a power supply; the two electromagnetic coils are connected in parallel, one end of each electromagnetic coil is connected with the electronic button and the main switch in series in sequence and then connected with the positive electrode of the power supply, and the other end of each electromagnetic coil is connected with the negative electrode of the power supply; the clutch switch is connected with the electronic button in parallel; the two electromagnetic coils are arranged on the electromagnetic reversing valve, preferably, the two electromagnetic coils are arranged on the combined valve block and respectively control the two-position two-way one-way electromagnetic valve and the two-position three-way electromagnetic reversing valve.
Furthermore, the brake pedal device comprises a brake pedal, a linkage rod, a pedal rotation center and a push rod; the brake pedal is connected with the pedal rotation center through the linkage rod, two ends of the push rod are respectively connected with the pedal rotation center and the clutch switch, and the brake pedal is stepped by a foot to drive the push rod to rotate around the pedal rotation center, so that the clutch switch is controlled to be closed.
Preferably, the power-assisted clutch device is a clutch power-assisted pump.
Preferably, an oil inlet filter is arranged in the hydraulic oil tank and is connected with the hydraulic gear pump; and an oil return filter is arranged on the hydraulic oil tank and is connected with an oil return port of the multi-way valve through a pipeline, so that hydraulic oil directly returns to the hydraulic oil tank.
Preferably, the one-bar operating device comprises a shift handball and an operating lever connected with the shift handball, and the electronic button is arranged on the shift handball.
The invention has the technical effects that:
compared with the prior art, the electro-hydraulic walking clutch system for the harvesting machine comprises a hydraulic gear pump, a connecting hydraulic pipeline, a power-assisted clutch device, an electromagnetic directional valve, a brake pedal device, a power supply, a one-rod operation control device, a connecting wire harness and the like, wherein after the automatic separation and the multi-stage gear selection of the walking clutch are realized by controlling the one-rod operation control device, the one-rod operation control device is loosened, the walking clutch is automatically combined, the right foot pedal accelerator pedal is stepped on to walk, the electro-hydraulic control of the walking clutch is finally realized, the left foot of a driver is completely released, the one-rod operation is controlled by the right hand and the electric liquid, the functions of the walking clutch separation, the multi-stage gear selection, the clutch combination, the walking of the agricultural combined harvesting machine and the like are realized, the labor intensity of the driver is greatly reduced, the product reliability is improved, the walking operation, the whole machine is safer and more reliable, and users can obtain more benefits.
Drawings
FIG. 1 is a schematic diagram of a hydraulic control system of the present invention;
FIG. 2 is a schematic diagram of the electrical system of the present invention (brake pedal released);
FIG. 3 is a schematic diagram of the electrical system of the present invention (brake pedal depressed);
FIG. 4 is a schematic structural diagram of the hydraulic control system of the present invention (excluding the travel clutch driving crank arm);
FIG. 5 is a schematic structural diagram of a hydraulic control system of the present invention (including a travel clutch drive crank arm);
the hydraulic control system comprises a hydraulic control system 1, an electric system 2, a brake pedal device 3, a one-rod operating device 4, a walking clutch driving crank arm 5, a clutch pressure plate 6, a return spring 7, an oil inlet filter 8, an oil return filter 9, a hydraulic oil tank 101, a hydraulic gear pump 102, an electromagnetic reversing valve 103, a clutch booster pump 104, a first pipeline 105, an oil inlet 106, a second pipeline 107, an oil return port 108, a third pipeline 109, a branch pipeline 1010, a clutch switch 201, an electronic button 202, an electromagnetic coil 203, a main switch 204, a power supply 205, a brake pedal 301, a linkage rod 302, a pedal rotation center 303, a push rod 304, a combined valve block 1031, a two-position two-way electromagnetic valve 1032, a two-position three-way electromagnetic reversing valve 1033, a first overflow valve 1034, a second overflow valve 1035.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The invention is further illustrated by the following specific examples in combination with the accompanying drawings.
Example 1:
an electro-hydraulic walking clutch system of harvesting machinery comprises a hydraulic control system 1, an electric system 2, a brake pedal device 3, a rod operating device 4, a walking clutch driving crank arm 5, a clutch pressure plate 6 and a return spring 7; wherein the content of the first and second substances,
the electrical system 2 comprises a clutch switch 201, an electronic button 202 and two electromagnetic coils 203;
the hydraulic control system 1 is connected with an electrical system 2 through two electromagnetic coils 203;
the brake pedal device 3 is connected with the electrical system 2 through a clutch switch 201, and controls the closing of the clutch switch 201 to control the electrification of two electromagnetic coils 203, so as to control the flow direction of hydraulic oil in the hydraulic control system 1;
the electronic button 202 is arranged on a rod control device 4, and the electronic button 202 is manually operated to control the energization of the two electromagnetic coils 203, so that the flow direction of hydraulic oil in the hydraulic control system 1 is controlled;
one end of the walking clutch driving crank arm 5 is connected with the hydraulic control system 1, and the other end of the walking clutch driving crank arm is connected with the clutch pressure plate 6; and a return spring 7 is arranged at the bottom of the clutch pressure plate 6, and the hydraulic control system 1 controls the walking clutch to drive the crank arm 5 to rotate, so that the clutch pressure plate 6 is driven to move, and the clutch is controlled to be separated and combined.
Further, the hydraulic control system 1 comprises a hydraulic oil tank 101, a hydraulic gear pump 102, an electromagnetic directional valve 103 and a clutch booster pump 104; one end of the hydraulic gear pump 102 is connected with the hydraulic oil tank 101 through a hydraulic pipeline, and the other end of the hydraulic gear pump is connected with the electromagnetic directional valve 103 through a hydraulic pipeline; the electromagnetic directional valve 103 is provided with a multi-way valve, and the multi-way valve is used for controlling oil inlet and oil return of hydraulic oil; the clutch booster pump 104 is respectively connected with the electromagnetic directional valve 103 and the walking clutch driving crank arm 5, the electromagnetic directional valve 103 controls a piston rod of the clutch booster pump 104 to stretch, the piston rod of the clutch booster pump 104 pushes the walking clutch driving crank arm 5 to rotate, and then the clutch pressure plate 6 moves, so that the separation and combination control of the clutch is realized.
Furthermore, the electromagnetic directional valve 103 includes a combination valve block 1031, a two-position two-way one-way solenoid valve 1032, a two-position three-way electromagnetic directional valve 1033, a first overflow valve 1034, a second overflow valve 1035, and a throttle valve 1036; the combined valve block 1031 is a carrier of a two-position two-way one-way solenoid valve 1032, a two-position three-way electromagnetic directional valve 1033, a first overflow valve 1034, a second overflow valve 1035 and a throttle valve 1036; the electromagnetic reversing valve 103 is divided into three pipelines, wherein the two-position two-way one-way electromagnetic valve 1032 is arranged on the first pipeline 105 and is connected with an oil inlet 106 of the multi-way valve; the first overflow valve 1034 is arranged on a second pipeline 107 and is connected with the hydraulic oil tank 101 through an oil return port 108 of the multi-way valve; the two-position three-way electromagnetic directional valve 1033 is arranged on the third pipeline 109, is connected with the clutch booster pump 104 and is used for controlling the expansion and contraction of a piston rod of the clutch booster pump 104; the two-position three-way electromagnetic directional valve 1033 is further connected with the first pipeline 105 through two branch pipelines 1010 respectively, a throttle valve 1036 is arranged on one branch pipeline 1010 of the two branch pipelines 1010, and a second overflow valve 1035 is arranged on the other branch pipeline 1010.
For example, the engine drives the hydraulic gear pump 102 to output high-pressure hydraulic oil as a hydraulic driving power source. As shown in fig. 1, a high-pressure oil output port of a hydraulic gear pump 102 is connected with a port P of an electromagnetic directional valve 103 through a hydraulic pipeline, and then is divided into three pipelines:
1. the port A2 of the electromagnetic directional valve 103 is connected with the port P of the hydraulic clutch booster pump 104, and the hydraulic clutch booster pump 104 pushes the walking clutch to drive the crank arm 5, so that the walking clutch is separated;
2. a port 103T of the electromagnetic directional valve is connected with an oil return pipeline of the hydraulic system and directly returns to the hydraulic oil tank 101;
3. the port 103A1 of the electromagnetic directional valve is connected with the port P of the multi-way valve to realize the functions of header lifting, granary lifting, stepless speed change oil cylinder driving and the like of the whole machine, and finally, the hydraulic oil returns to the hydraulic oil tank 101 through the port T of the multi-way operation valve.
The first overflow valve 1034 is a safety valve of a multi-way valve, and the opening pressure is 18 Mpa; the second overflow valve 1035 is a safety valve of the system, and the opening pressure is 3.0 Mpa; the two-position two-way one-way solenoid valve 1032 is used for controlling the on-off of the oil inlet 106 of the multi-way valve, when the two electromagnetic coils 203 are powered off, the oil inlet 106 of the multi-way valve is communicated, and when the two electromagnetic coils 203 are powered on, the oil inlet 106 of the multi-way valve is not communicated; the two-position three-way electromagnetic directional valve 1033 is used for controlling the extension and retraction of a piston rod of the clutch booster pump 104, when the two electromagnetic coils 203 are electrified, the clutch booster pump 104 extends the piston rod under the action of hydraulic oil to push the clutch driving arm to rotate, and then the clutch pressure plate 6 moves to separate the clutch; when the two electromagnetic coils 203 are powered off, the clutch pressure plate returns under the action of the return spring 7, the piston rod of the clutch booster pump 104 is pushed to return, and the clutch is combined.
Further, the electrical system 2 further includes a main switch 204 and a power source 205; the two electromagnetic coils 203 are connected in parallel, one end of each electromagnetic coil is sequentially connected with the electronic button 202 and the main switch 204 in series and then connected with the positive electrode of the power supply 205, and the other end of each electromagnetic coil is connected with the negative electrode of the power supply 205; the clutch switch 201 is connected with the electronic button 202 in parallel; the electronic button 202 is arranged on a rod control device 4, so that the rod type operation is facilitated; the two electromagnetic coils 203 are disposed on the electromagnetic directional valve 103, and preferably, the two electromagnetic coils 203 are disposed on the combination valve block 1031 to control the two-position two-way one-way electromagnetic valve 1032 and the two-position three-way electromagnetic directional valve 1033, respectively.
Further, the brake pedal device 3 comprises a brake pedal 301, a linkage rod 302, a pedal turning center 303 and a push rod 304; the brake pedal 301 is connected with the pedal rotation center 303 through the linkage rod 302, two ends of the push rod 304 are respectively connected with the pedal rotation center 303 and the clutch switch 201, and the brake pedal 301 is stepped on by a foot to drive the push rod 304 to rotate around the pedal rotation center 303, so that the clutch switch 201 is controlled to be closed.
Preferably, an oil inlet filter 8 is arranged in the hydraulic oil tank 101, and the oil inlet filter 8 is connected with the hydraulic gear pump 102; the hydraulic oil tank 101 is provided with an oil return filter 9, and the oil return filter 9 is connected with an oil return port 108 of the multi-way valve through a pipeline, so that hydraulic oil directly returns to the hydraulic oil tank 101.
Preferably, the one-bar operating device 4 includes a shift knob and a lever (the lever is not shown) connected to the shift knob, and the electronic button 202 is disposed on the shift knob.
The invention is realized by two parts of structure control separately or together:
1. the right hand holds the one-rod operating device 4 and the electronic button 202, the piston rod of the clutch booster pump 104 is pushed out to separate the walking clutch, meanwhile, after the one-rod operating device 4 is held by hand to carry out multi-stage gear selection according to the first gear, second gear, third gear and reverse gear marks, the one-rod operating device 4 is loosened, the piston rod of the clutch booster pump 104 is retreated to close the walking clutch, the right foot pedal accelerator pedal is used for increasing the rotating speed of the engine, and the driving walking function of the agricultural combine harvester is realized;
2. the clutch switch 201 is also installed on the brake pedal 301, when the brake pedal 301 is pedaled by the right foot, the piston rod of the clutch booster pump 104 can be pushed out to separate the walking clutch, meanwhile, after the one-rod handling device 4 is held by hands to carry out multi-stage gear selection according to the first gear, the second gear, the third gear and the reverse gear marks, the brake pedal 301 is loosened by the right foot, the piston rod of the clutch booster pump 104 retracts to close the walking clutch, the engine rotating speed is increased by pedalling the accelerator pedal by the right foot, and the walking driving function of the agricultural combine harvester is realized.
The operation principle is as follows: when shifting gears, the input shaft and the main shaft need to be separated through a clutch of the gearbox, and after the gear is shifted, the clutch needs to be combined, and the execution steps are as follows: holding a rod operating device 4 by hand, pressing the electronic button 202 at the same time, electrifying the two electromagnetic coils 203, conducting the port A2 and the port P at the moment, closing the second overflow valve 1035, rapidly extending the clutch booster pump 104 under the action of hydraulic oil, pushing the walking clutch to drive the crank arm 5 to rotate, separating the clutch friction plates, and finishing the actions within 0.2-0.5 second. After the electronic button 2021s is pressed down, the electronic button 202 is released, the two electromagnetic coils 203 are powered off, the port A2 is communicated with the port T, the overflow valve II 1035 is opened, the cylinder body of the clutch booster pump 104 is communicated with the oil tank oil return port 108, the walking clutch driving crank arm 5 slowly returns under the action of the return spring 7, the piston rod of the clutch booster pump 104 is pushed to return, and the gear shifting action is completed.
During braking, the walking clutch also needs to be separated to avoid holding the car, the walking clutch is combined after the brake pedal 301 is released, and the execution steps are as follows: the brake pedal 301 is stepped on, the brake pedal device 3 pushes the clutch switch 201 to rotate, the clutch switch 201 is switched on after the rotation is more than or equal to 5 degrees, at the moment, the two electromagnetic coils 203 are electrified, the port A2 is switched on with the port P, the overflow valve II 1035 is closed, the clutch booster pump 104 rapidly extends out under the action of hydraulic oil to push the walking clutch driving crank arm 5 to rotate, the clutch friction plates are separated, and the actions are completed within 0.2-0.5 seconds. After the brake pedal 301 is released, the clutch switch 201 is disconnected, the two electromagnetic coils 203 are disconnected, the port A2 is communicated with the port T, the overflow valve II 1035 is opened, the cylinder body of the clutch booster pump 104 is communicated with the oil tank oil return port 108, the walking clutch driving crank arm 5 slowly returns under the action of the return spring 7, meanwhile, the piston rod of the clutch booster pump 104 is pushed to return, and the braking action is finished.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a harvester electric liquid walking clutch system which characterized in that: the hydraulic brake system comprises a hydraulic control system, an electric system, a brake pedal device, a rod operating device, a walking clutch driving crank arm, a clutch pressure plate and a return spring; wherein the content of the first and second substances,
the electric system comprises a clutch switch, an electronic button and two electromagnetic coils;
the hydraulic control system is connected with the electric system through two electromagnetic coils;
the brake pedal device is connected with the electrical system through a clutch switch, and controls the electrification of the two electromagnetic coils by controlling the closing of the clutch switch, so that the flow direction of hydraulic oil in the hydraulic control system is controlled;
the electronic button is arranged on a lever control device, and the electronic button is manually operated to control the electrification of the two electromagnetic coils so as to control the flow direction of hydraulic oil in the hydraulic control system;
one end of the walking clutch driving crank arm is connected with the hydraulic control system, and the other end of the walking clutch driving crank arm is connected with the clutch pressure plate; a return spring is arranged at the bottom of the clutch pressure plate, and the hydraulic control system controls the walking clutch to drive the crank arm to rotate so as to drive the clutch pressure plate to move, thereby controlling the separation and combination of the clutch;
the hydraulic control system comprises a hydraulic oil tank, a hydraulic gear pump, an electromagnetic directional valve and a power-assisted clutch device; one end of the hydraulic gear pump is connected with a hydraulic oil tank through a hydraulic pipeline, and the other end of the hydraulic gear pump is connected with an electromagnetic directional valve through a hydraulic pipeline; the electromagnetic directional valve is provided with a multi-way valve, and the multi-way valve is used for controlling oil inlet and oil return of hydraulic oil; the power-assisted clutch device is respectively connected with the electromagnetic directional valve and the walking clutch driving crank arm;
the electromagnetic directional valve comprises a combined valve block, a two-position two-way one-way electromagnetic valve, a two-position three-way electromagnetic directional valve, a first overflow valve, a second overflow valve and a throttle valve; the combined valve block is a carrier of a two-position two-way one-way electromagnetic valve, a two-position three-way electromagnetic directional valve, a first overflow valve, a second overflow valve and a throttle valve; the electromagnetic directional valve is internally divided into three pipelines, wherein the two-position two-way one-way electromagnetic valve is arranged on the first pipeline and is connected with an oil inlet of the multi-way valve; the overflow valve I is arranged on the pipeline II and is connected with the hydraulic oil tank through an oil return port of the multi-way valve; the two-position three-way electromagnetic directional valve is arranged on the third pipeline, is connected with the power-assisted clutch device and is used for controlling the expansion of a piston rod of the power-assisted clutch device; the two-position three-way electromagnetic directional valve is also connected with the first pipeline through two branch pipelines respectively, a throttle valve is arranged on one branch pipeline of the two branch pipelines, and an overflow valve is arranged on the other branch pipeline.
2. The harvesting machinery electrohydraulic walking clutch system of claim 1, wherein: the electrical system further includes a main switch and a power supply; the two electromagnetic coils are connected in parallel, one end of each electromagnetic coil is sequentially connected with the electronic button and the main switch in series and then connected with the positive electrode of the power supply, and the other end of each electromagnetic coil is connected with the negative electrode of the power supply; the clutch switch is connected with the electronic button in parallel; the two electromagnetic coils are arranged on the electromagnetic reversing valve and respectively control the two-position two-way one-way electromagnetic valve and the two-position three-way electromagnetic reversing valve.
3. The harvesting machine electro-hydraulic travel clutch system of claim 2, wherein: two solenoid coils are arranged on the combined valve block.
4. The harvesting machinery electrohydraulic walking clutch system of claim 1, wherein: the brake pedal device comprises a brake pedal, a linkage rod, a pedal rotation center and a push rod; the brake pedal is connected with the pedal rotation center through a linkage rod, and two ends of the push rod are respectively connected with the pedal rotation center and the clutch switch.
5. The harvesting machinery electrohydraulic walking clutch system of claim 1, wherein: the power-assisted clutch device is a clutch power-assisted pump.
6. The harvesting machinery electrohydraulic walking clutch system of claim 1, wherein: an oil inlet filter is arranged in the hydraulic oil tank and is connected with the hydraulic gear pump; and an oil return filter is arranged on the hydraulic oil tank and is connected with an oil return port of the multi-way valve through a pipeline.
7. The harvesting machinery electrohydraulic walking clutch system of claim 1, wherein: the one-rod operating device comprises a gear shifting handball and an operating rod connected with the gear shifting handball, and the electronic button is arranged on the gear shifting handball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239144.1A CN110936814B (en) | 2019-12-06 | 2019-12-06 | Electro-hydraulic walking clutch system of harvesting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239144.1A CN110936814B (en) | 2019-12-06 | 2019-12-06 | Electro-hydraulic walking clutch system of harvesting machine |
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| Publication Number | Publication Date |
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| CN110936814A CN110936814A (en) | 2020-03-31 |
| CN110936814B true CN110936814B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911239144.1A Active CN110936814B (en) | 2019-12-06 | 2019-12-06 | Electro-hydraulic walking clutch system of harvesting machine |
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| CN2500528Y (en) * | 2001-10-26 | 2002-07-17 | 丁德斌 | Electrohydraulic controlled automatic operating device for clutch of automobile |
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| CN106704413A (en) * | 2017-01-19 | 2017-05-24 | 洛阳福格森机械装备有限公司 | Main clutch electrically controlled hydraulic operation mechanism for harvester |
| CN207311111U (en) * | 2017-09-25 | 2018-05-04 | 上汽通用五菱汽车股份有限公司 | A kind of clutch drive component easy to operation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4424790A1 (en) * | 1994-07-14 | 1996-01-18 | Bosch Gmbh Robert | Hydraulic emergency control for a friction clutch arranged between an internal combustion engine and a transmission |
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2019
- 2019-12-06 CN CN201911239144.1A patent/CN110936814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2500528Y (en) * | 2001-10-26 | 2002-07-17 | 丁德斌 | Electrohydraulic controlled automatic operating device for clutch of automobile |
| CN103946577A (en) * | 2011-11-15 | 2014-07-23 | 日立建机株式会社 | Clutch control device for work vehicle |
| CN205401517U (en) * | 2016-02-25 | 2016-07-27 | 第一拖拉机股份有限公司 | Tractor PTO clutch electrohydraulic control operating mechanism |
| CN106704413A (en) * | 2017-01-19 | 2017-05-24 | 洛阳福格森机械装备有限公司 | Main clutch electrically controlled hydraulic operation mechanism for harvester |
| CN207311111U (en) * | 2017-09-25 | 2018-05-04 | 上汽通用五菱汽车股份有限公司 | A kind of clutch drive component easy to operation |
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| CN110936814A (en) | 2020-03-31 |
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Denomination of invention: An electro-hydraulic traveling clutch system for harvesting machinery Effective date of registration: 20230315 Granted publication date: 20210629 Pledgee: Industrial and Commercial Bank of China Limited Jining Yanzhou Sub-branch Pledgor: SHANDONG GOLDDAFENG MACHINERY CO.,LTD. Registration number: Y2023980034823 |