CN113906899A

CN113906899A - Hydraulic main clutch mechanism of corn harvester

Info

Publication number: CN113906899A
Application number: CN202010659149.6A
Authority: CN
Inventors: 顾宗凯; 沈涛; 熊开轩; 李秀梅; 隋鹏
Original assignee: Deutz Fahr Machinery Co ltd
Current assignee: Deutz Fahr Machinery Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2022-01-11

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a hydraulic main clutch mechanism of a corn harvester, which comprises an accommodating box, a tensioning wheel assembly, a pull rod, a reset spring, an engine belt wheel, a main transmission belt wheel, a transmission belt, a safety switch, a main clutch oil cylinder, a clutch rocker arm, an oil pipe I, an oil pipe II, a high-pressure valve and a hydraulic oil tank, wherein the tensioning wheel assembly is arranged inside the accommodating box, the pull rod is fixedly connected with the front end of the tensioning wheel assembly, the rear end of the lower part of the pull rod is rotationally connected with the inner wall of the accommodating box through a bolt, the transmission belt is rotationally connected on the surface of the main transmission belt wheel in a circle, the group of hydraulic elements are operated by the operating handle, and larger force can be controlled by smaller operating force, so that the problem that the operating force is too large or the stroke is too long in the combining and separating processes of the corn harvester is solved, and the tension of the main clutch transmission belt can better meet the use requirement. Effectively reducing the labor intensity of operators, improving the transmission efficiency of the transmission belt and prolonging the service life of the transmission belt.

Description

Hydraulic main clutch mechanism of corn harvester

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a hydraulic main clutch mechanism of a corn harvester.

Background

The main clutch mechanisms of the corn harvesters developed and researched in the domestic market at present adopt a transmission belt tensioning mode, and the mechanisms mainly adopt a pull rod to pull a tensioning wheel to forcibly press the outer surface of the transmission belt so as to enable the main transmission mechanism to operate, thereby driving the header, the elevator, the peeler, the chopping and returning mechanism and the like to operate. Although this mechanism is simple and practical, it has certain disadvantages: firstly, the tension wheel is pulled by the pull rod to be forced to the transmission belt, the main clutch is mechanically operated, and as the pressing force required by the transmission belt of the main clutch is too large and is limited by the stroke of the pull rod, the operation of the main clutch requires large force, so that the operation force of the operation rod is large or the stroke is too long, the labor intensity of an operator is increased, and the operator is easy to fatigue. Secondly, this kind of mechanism has reduced main separation and reunion driving belt's transmission efficiency and life, and main separation and reunion driving belt wearing and tearing are very fast, and life is shorter, need often to change, indirectly causes the improvement of later stage use cost.

Aiming at the problems in the prior art, a novel hydraulic main clutch mechanism of the corn harvester is developed, the problems that the operating force is too large or the stroke is too long, the main clutch transmission belt is worn quickly and the like in the main transmission combination and separation process of the corn harvester are solved, the tension of the main clutch transmission belt can better meet the use requirement, the labor intensity of an operator is effectively reduced, and the transmission efficiency and the service life of the main clutch transmission belt are improved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a hydraulic main clutch mechanism of a corn harvester, which aims to solve the problems that the operating force of the corn harvester is too large in the combining and separating processes, and the service life of a main clutch transmission belt is short, so that the tension of the main clutch belt can better meet the use requirement, the labor intensity of an operator is effectively reduced, the transmission efficiency and the service life of the belt are improved, and the problems in the prior art are solved.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a maize picker hydraulic pressure main clutch mechanism, includes containing box and tight pulley subassembly that rises, pull rod, reset spring, engine band pulley, final drive pulley, driving belt, safety switch, main clutch cylinder, separation and reunion rocking arm, oil pipe one, oil pipe two, high-pressure valve, hydraulic tank, the inside of containing box is provided with tight pulley subassembly that rises, the front end fixedly connected with pull rod that rises of tight pulley subassembly, the lower part rear end of pull rod passes through the bolt rotation with the inner wall of containing box and is connected, the surperficial a week of final drive pulley rotates and is connected with driving belt, the top of final drive pulley is passed through driving belt's surface and is connected with the engine band pulley rotation, and the one side that the surface of tight pulley subassembly that rises is close to the final drive pulley rotates with one side of driving belt and is connected, one side that the final drive pulley was kept away from to the pull rod is provided with safety switch.

Preferably, the top fixedly connected with separation and reunion rocking arm of main clutch cylinder, the top of separation and reunion rocking arm and reset spring's top fixed connection, reset spring's surperficial through connection and the rear end of tight pulley subassembly and driving belt that rises, the air outlet groove that uses the final drive pulley to set up as the axle circle is seted up to the front end of final drive pulley.

Preferably, the rear top end of the main clutch cylinder is connected with a first oil pipe in a penetrating manner, one side of the first oil pipe is in contact with the air, the top end of a second oil pipe arranged at the joint of the first oil pipe and the main clutch cylinder is fixedly connected with the bottom end of the high-pressure valve, the top end of the high-pressure valve is connected with the bottom end of the hydraulic oil tank in a penetrating manner through the second oil pipe, an oil filling port is formed in the top end of the hydraulic oil tank, and one end of the hydraulic oil tank is fixedly connected with one side of the containing box.

Preferably, the top end of the containing box is provided with a discharge port, the inside of the containing box is connected with a rotating shaft in a penetrating manner, the surface of the rotating shaft is connected with the inside of an engine belt wheel in a rotating manner, the bottom end of the containing box is fixedly connected with a blanking pool, and the outline of the blanking pool is rectangular.

Preferably, one side of the blanking pool, which is far away from the belt wheel of the engine, is fixedly connected with a blade. One side fixedly connected with breaker that the paddle is close to the engine band pulley, and the breaker setting is in the inside of blanking pond, the front end fixedly connected with connecting pipe of containing box, the bottom fixedly connected with support of connecting pipe, the appearance profile of support is the right angled triangle setting, and the bottom fixedly connected with cutting board of support.

Preferably, one side fixedly connected with of support reaps the frame, the bottom of reaping the frame is a meter with the top interval of support, reap a surperficial a week fixedly connected with of frame and reap the pipe, and reap the pipe and set up length and be eighty centimeters reap the equidistant pipe that reaps of a week of surface of frame and be five rows, the inside of containing box is provided with the motor.

Preferably, one side of the bracket below the harvesting frame is rotatably connected with a winch barrel, and the surface of the winch barrel is fixedly connected with scale rotating around.

Preferably, the one end fixedly connected with wheelset that the containing box was kept away from to the engine band pulley, the one side fixedly connected with transfer line that the containing box was kept away from to the wheelset, the position fixedly connected with runner of wheelset is kept away from to the rear end of transfer line, the one end fixedly connected with dead lever of runner.

The working principle is as follows: when the corn harvester harvests, the hydraulic handle is operated to control the extension of the main clutch cylinder 8, the clutch rocker arm 9 is driven to drive the pull rod 2 to enable the tension pulley assembly 1 to tightly press the transmission belt 6, so that the power of the engine belt pulley 4 is transmitted to the main transmission belt pulley 5 through the transmission belt 6, and the operation of a header, an elevator, a peeler, a chopping and returning mechanism and the like is driven. After harvesting is completed, the main clutch oil cylinder 8 is controlled to be shortened by operating the hydraulic handle, the clutch rocker arm 9 is driven to drive the pull rod 2 to enable the tension pulley assembly 1 to loosen the compression of the transmission belt 6, so that the power of the engine belt pulley 4 is not transmitted to the main transmission belt pulley 5 through the transmission belt 6 any more, the reset spring 3 plays a role at the same time, the loosening speed of the tension pulley assembly 1 is accelerated through the action of the pull rod 2, the power is cut off rapidly, and the effect of protecting the transmission belt 6 is achieved.

The high-pressure valve 12 arranged on the second oil pipe 11 is closed under normal conditions, when the corn harvester stops running due to the blockage of a header or other accidents, the engine cannot be started due to the fact that the safety switch 7 is in a state of cutting off the starting circuit of the engine, and if the tensioning wheel assembly 1 is tightly pressed on the transmission belt 6, if the engine is started suddenly, the starting system of the engine is damaged due to overload, and other accidents can be caused due to sudden running of the working system caused by the fact that the engine is started with load; at this time, the operating handle on the high-pressure valve 12 needs to be operated, so that the high-pressure hydraulic oil in the main clutch cylinder 8 and the oil pipe two 11 directly returns to the hydraulic oil tank 13 through the high-pressure valve 12, and at this time, the tension pulley assembly 1 is in a state of releasing the transmission belt 6 under the action of the return spring 3 and the pull rod 2. The power of the engine belt wheel 4 can not be transmitted to the main transmission belt wheel 5 through the transmission belt 6; when the tension wheel assembly 1 is in a state of loosening the transmission belt 6, the safety switch 7 is in a state of connecting an engine starting circuit, and at the moment, the engine can be started by operating the engine starting switch, so that the aim of protecting the engine and the main transmission mechanism is fulfilled.

(III) advantageous effects

The invention provides a hydraulic main clutch mechanism of a corn harvester. The method has the following beneficial effects:

1. compared with the prior art, the hydraulic main clutch mechanism of the corn harvester adopts a hydraulic control mode to replace the traditional mechanical pull rod control mode, a group of hydraulic elements are controlled through the control handle, and larger force can be controlled by smaller control force; the problem of maize picker operating force too big or the stroke overlength in combination and separation process is solved, make main clutch drive belt tensile force better satisfy the operation requirement. Effectively reducing the labor intensity of operators, improving the transmission efficiency of the transmission belt and prolonging the service life of the transmission belt.

2. The hydraulic oil pump is characterized in that a main clutch oil cylinder, a clutch rocker arm, a safety switch, a main transmission belt wheel, a hydraulic oil tank and a tension pulley assembly are all arranged on a rack, one end of the clutch rocker arm is connected with the main clutch oil cylinder, the other end of the clutch rocker arm is connected with a pull rod, a return spring is arranged on the pull rod, an oil pipe I and an oil pipe II are arranged on the main clutch oil cylinder, and a high-pressure valve is arranged on the oil pipe II; the transmission belt is connected with the engine belt wheel and the main transmission belt wheel, when the hydraulic control handle is operated to enable the main clutch oil cylinder to stretch, the main clutch oil cylinder enables the pull rod to drive the tension wheel assembly through the clutch rocker arm, and the transmission belt is pressed and loosened through the tension wheel assembly to transmit power.

3. The high-pressure valve arranged on the oil pipe II has the function that hydraulic oil in the main clutch oil cylinder can be directly returned to the hydraulic oil tank by operating the high-pressure valve, so that the main clutch oil cylinder retracts, and the transmission belt is loosened through the main clutch oil cylinder, the clutch rocker arm, the pull rod, the return spring, the tension pulley assembly and the like.

4. The safety switch is arranged near the tension pulley assembly, and when the tension pulley assembly is tightly pressed on the transmission belt, the safety switch is in a state of cutting off a starting circuit of an engine; when the tension pulley assembly loosens the transmission belt, the safety switch enables the engine starting circuit to be in a connection state, and the engine starting switch is operated to start the engine, so that the engine and the main transmission mechanism are protected.

Drawings

FIG. 1 is a schematic structural diagram of the working principle of the present invention;

FIG. 2 is a schematic view of the hydraulic oil trend structure of the present invention;

FIG. 3 is a schematic axial view of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic side view of the present invention.

Wherein, 1, a tension wheel assembly; 2. a pull rod; 3. a return spring; 4. an engine pulley; 5. a primary drive pulley; 6. a drive belt; 7. a safety switch; 8. a main clutch cylinder; 9. a clutch rocker arm; 10. an oil pipe I; 11. an oil pipe II; 12. a high pressure valve; 13. a hydraulic oil tank; 14. a storage box; 15. a rotating shaft; 16. a blanking pool; 17. a blade paddle; 18. a connecting pipe; 19. a harvesting frame; 20. a hoisting barrel; 21. transferring scales; 22. a discharge port; 23. a motor; 24. a wheel set; 25. a support; 26. harvesting the pipe; 27. fixing the rod; 28. a rotating wheel; 29. and a transmission rod.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The first embodiment is as follows:

as shown in fig. 1 and 2, an embodiment of the invention provides a hydraulic main clutch mechanism of a corn harvester, which comprises a storage box 14, a tension pulley assembly 1, a pull rod 2, a reset spring 3, an engine pulley 4, a main transmission pulley 5, a transmission belt 6, a safety switch 7, a main clutch cylinder 8, a clutch rocker arm 9, an oil pipe one 10, an oil pipe two 11, a high-pressure valve 12 and a hydraulic oil tank 13, wherein the tension pulley assembly 1 is arranged inside the storage box 14, the pull rod 2 is fixedly connected to the front end of the tension pulley assembly 1, the rear end of the lower part of the pull rod 2 is rotatably connected to the inner wall of the storage box 14 through a bolt, the transmission belt 6 is rotatably connected to one circle of the surface of the main transmission pulley 5, the upper part of the main transmission pulley 5 is rotatably connected to the engine pulley 4 through the surface of the transmission belt 6, and one side of the surface of the tension pulley assembly 1, which is close to the main transmission pulley 5, is rotatably connected to one side of the transmission belt 6, a safety switch 7 is arranged on one side of the pull rod 2 far away from the main driving belt wheel 5.

Example two:

as shown in fig. 1, 2 and 5, an embodiment of the invention provides a hydraulic main clutch mechanism of a corn harvester, a clutch rocker 9 is fixedly connected to a top end of a main clutch cylinder 8, a top end of the clutch rocker 9 is fixedly connected to a top end of a return spring 3, a surface of the return spring 3 is connected to a rear end of a tension pulley assembly 1 and a transmission belt 6 in a penetrating manner, an air outlet groove arranged around a main transmission pulley 5 as a circular shaft is formed in a front end of the main transmission pulley 5, an oil pipe one 10 is connected to a top end of a rear portion of the main clutch cylinder 8 in a penetrating manner, one side of the oil pipe one 10 contacts with air, a top end of an oil pipe two 11 arranged at a connection position of the oil pipe one 10 and the main clutch cylinder 8 is fixedly connected to a bottom end of a high pressure valve 12, a top end of the high pressure valve 12 is connected to a bottom end of a hydraulic oil tank 13 in a penetrating manner through the oil pipe two 11, a top end of the hydraulic oil tank 13 is provided with an oil filling opening, one side of a storage tank 14 is fixedly connected to a side of the storage tank, discharge gate 22 has been seted up on the top of containing box 14, and containing box 14's inside through connection has pivot 15, and the surface of pivot 15 is connected with the internal rotation of engine band pulley 4, and containing box 14's bottom fixedly connected with blanking pond 16, blanking pond 16's appearance profile is the rectangle setting, and one side fixedly connected with paddle 17 of engine band pulley 4 is kept away from to blanking pond 16. One side fixedly connected with breaker that blade 17 is close to engine band pulley 4, and the breaker setting is in the inside of blanking pond 16, the front end fixedly connected with connecting pipe 18 of containing box 14, the bottom fixedly connected with support 25 of connecting pipe 18, and the appearance profile of support 25 is the right triangle setting, and the bottom fixedly connected with cutting board of support 25.

Example three:

as shown in fig. 3, 4 and 5, the embodiment of the invention provides a hydraulic main clutch mechanism of a corn harvester, one side of a bracket 25 is fixedly connected with a harvesting frame 19, the distance between the bottom end of the harvesting frame 19 and the top end of the bracket 25 is one meter, a harvesting pipe 26 is fixedly connected to one circle of the surface of the harvesting frame 19, the length of the harvesting pipe 26 is eighty centimeters, five rows of harvesting pipes 26 are arranged on the surface of the harvesting frame 19 at equal intervals, a motor 23 is arranged inside the storage box 14, one side of a support 25 below the harvesting frame 19 is rotatably connected with a winding drum 20, one circle of the surface of the winding drum 20 is fixedly connected with a rotating scale 21, one end of the engine belt wheel 4, far away from the storage box 14, is fixedly connected with a wheel set 24, one side of the wheel set 24, far away from the storage box 14, is fixedly connected with a transmission rod 29, the rear end of the transmission rod 29, far away from the position of the wheel set 24, is fixedly connected with a rotating wheel 28, and one end of the rotating wheel 28 is fixedly connected with a fixing rod 27.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a maize picker hydraulic pressure main clutch mechanism, includes containing box (14) and tight pulley subassembly (1), pull rod (2), reset spring (3), engine band pulley (4), final drive belt wheel (5), driving belt (6), safety switch (7), main clutch cylinder (8), separation and reunion rocking arm (9), oil pipe (10), oil pipe two (11), high-pressure valve (12), hydraulic tank (13), its characterized in that: the inside of containing box (14) is provided with tight pulley assembly (1) that rises, the front end fixedly connected with pull rod (2) of tight pulley assembly (1) that rises, the lower part rear end of pull rod (2) passes through the bolt rotation with the inner wall of containing box (14) and is connected, the surface a week of final drive band pulley (5) rotates and is connected with driving belt (6), the surface that the top of final drive band pulley (5) was passed through driving belt (6) rotates with engine band pulley (4) and is connected, and the surface that the tight pulley assembly (1) that rises is close to one side of final drive band pulley (5) and rotates with one side of driving belt (6) and is connected, one side that final drive band pulley (5) was kept away from in pull rod (2) is provided with safety switch (7).

2. The hydraulic main clutch mechanism of the corn harvester according to claim 1, characterized in that: the top fixedly connected with separation and reunion rocking arm (9) of main clutch cylinder (8), the top of separation and reunion rocking arm (9) and the top fixed connection of reset spring (3), the surperficial through connection of reset spring (3) and the rear end of tight pulley subassembly (1) and driving belt (6) that rises, the gas outlet groove that uses final drive pulley (5) to set up as the circle axle is seted up to the front end of final drive pulley (5).

3. The hydraulic main clutch mechanism of the corn harvester according to claim 1, characterized in that: the rear portion top through connection of main clutch cylinder (8) has oil pipe (10), oil pipe (10) one side and air contact, the top of oil pipe two (11) that oil pipe (10) and main clutch cylinder's (8) junction set up and the bottom fixed connection of high-pressure valve (12), the bottom through connection of oil pipe two (11) and hydraulic tank (13) is passed through on the top of high-pressure valve (12), the top of hydraulic tank (13) is provided with the oil filling opening, one end of hydraulic tank (13) and one side fixed connection of containing box (14).

4. The hydraulic main clutch mechanism of the corn harvester according to claim 1, characterized in that: discharge gate (22) have been seted up on the top of containing box (14), the inside through connection of containing box (14) has pivot (15), the surface of pivot (15) is connected with the inside rotation of engine band pulley (4), the bottom fixedly connected with blanking pond (16) of containing box (14), the appearance profile of blanking pond (16) is the rectangle setting.

5. The hydraulic main clutch mechanism of the corn harvester as claimed in claim 4, wherein: and one side of the blanking pool (16) far away from the engine belt wheel (4) is fixedly connected with a blade (17). One side fixedly connected with breaker that paddle (17) are close to engine band pulley (4), and the breaker setting is in the inside of blanking pond (16), the front end fixedly connected with connecting pipe (18) of containing box (14), the bottom fixedly connected with support (25) of connecting pipe (18), the appearance profile of support (25) is the right triangle setting, and the bottom fixedly connected with cutting board of support (25).

6. The hydraulic main clutch mechanism of the corn harvester as claimed in claim 5, wherein: one side fixedly connected with of support (25) reaps frame (19), the bottom of reaping frame (19) is a meter with the top interval of support (25), reap a surperficial a week fixedly connected with harvesting pipe (26) of frame (19), and harvesting pipe (26) set up length and be eighty centimeters reap the equidistant harvesting pipe (26) of setting up of surperficial a week of reaping frame (19) is five rows, the inside of containing box (14) is provided with motor (23).

7. The hydraulic main clutch mechanism of the corn harvester as claimed in claim 6, wherein: one side of a bracket (25) below the harvesting frame (19) is rotatably connected with a winding barrel (20), and the surface of the winding barrel (20) is fixedly connected with a rotating scale (21) in a circle.

8. The hydraulic main clutch mechanism of the corn harvester according to claim 1, characterized in that: one end fixedly connected with wheelset (24) of containing box (14) is kept away from in engine band pulley (4), one side fixedly connected with transfer line (29) of containing box (14) are kept away from in wheelset (24), the position fixedly connected with runner (28) of wheelset (24) are kept away from to the rear end of transfer line (29), and the one end fixedly connected with dead lever (27) of runner (28).