Hydraulic transmission device for lifting corn ears

Abstract

The utility model relates to the technical field of hydraulic transmission devices, in particular to a hydraulic transmission device for lifting corn ears, which comprises an engine plug pump and a walking pump plug pump, the output end of the engine plug pump is connected with a control multi-way valve, and the engine plug pump is used for providing a power source for a control hydraulic loop. The input end of the engine insertion pump is connected with a hydraulic oil tank, the input end of the walking pump insertion pump is connected with a lifting motor control valve, a hydraulic transmission system is adopted, the transmission efficiency and reliability are improved, cluster lifting transmission is stable, the flow of oil passing through the BM series cycloid motor can be accurately controlled by adjusting the size of a throttling opening through the speed adjusting valve, and the transmission efficiency is improved. And a BM series cycloid motor and a reverse motor are arranged to drive the elevator to rotate reversely, so that blocked materials or corn ears which are not completely lifted are sent out reversely, blockage is effectively cleaned, smooth lifting is guaranteed, and the stability and durability of the equipment are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic transmission device technical field especially for a kind of hydraulic transmission device for corn ear ascending. BACKGROUND

[0002] Corn harvesting machinery, header completes ear picking, and chain rake elevator pushes ear to bract peeling mechanism, and after completing bract removal, it is sent to granary, and the harvesting process is completed.The conventional chain rake elevator is mechanically driven, and the power of engine is transmitted to the driving shaft of elevator by belt or chain, to complete the lifting movement of lifting chain rake.Due to the shortcomings of complex mechanical transmission structure, long transmission route, difficult adjustment, etc., the failure rate of mechanical structure is higher, and adjustment and maintenance are time-consuming and laborious.In addition, due to the low mechanical sensitivity of the safety clutch of the elevator, the safety clutch cannot be opened in time in the case of sudden increase of working load, resulting in damage to the safety clutch after the occurrence of blockage failure, high cost of maintenance and replacement of the safety clutch, and thus the harvesting efficiency is reduced.

[0003] In view of the transmission defects of mechanical elevator, a kind of elevator hydraulic drive device is designed.The device uses the current walking system hydraulic pump driving shaft, inserts a set of independent gear pump, the gear pump drives the cycloidal motor, and the cycloidal motor is connected with the transmission shaft of elevator, to realize the stable transmission of hydraulic power.Due to the overload protection of hydraulic system through pressure regulation, the overload impact caused by blockage is small, and the mechanical parts are effectively protected.Due to the easy realization of electro-hydraulic control of hydraulic drive, the "reverse spitting" of blocked material can be realized by reversing the motor in the case of overload blockage, to realize the rapid exclusion of blockage, save time and effort, and improve the operation efficiency.

[0004] In view of the problem that the safety clutch cannot be opened in time in the case of sudden increase of working load of elevator, causing blockage and damage to the safety clutch, a kind of hydraulic transmission device for corn ear ascending is provided. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of hydraulic transmission device for corn ear ascending, to solve the problem that the safety clutch cannot be opened in time in the case of sudden increase of working load of elevator in the related technology, causing blockage and damage to the safety clutch.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a kind of hydraulic transmission device for corn ear ascending is provided, including engine plug pump and walking pump plug pump, the output end of the engine plug pump is connected with the control valve, the engine plug pump is used to provide power source for control hydraulic circuit, the input end of the engine plug pump is connected with hydraulic oil tank, the input end of the walking pump plug pump is connected with elevator motor control valve.

[0007] Further, the output end of the ascending motor control valve is connected with a hydraulic oil tank, and the output end of the traveling pump plug-in pump is connected with the hydraulic oil tank.

[0008] Further, a cooler is arranged in parallel on the pipeline of the ascending motor control valve, and the cooler is used for taking away most of the heat of the system.

[0009] Further, a BM series cycloid motor is connected with the input end of the ascending motor control valve, and a speed regulating valve is connected with the BM series cycloid motor, and the speed regulating valve is used for regulating the rotating speed of the motor.

[0010] Further, an A port and a B port are symmetrically arranged on the BM series cycloid motor, and an a coil and a b coil are correspondingly arranged.

[0011] Further, a main clutch oil cylinder for oil feeding is connected with the input end of the operating control multi-way valve, and a main clutch combination button M is fixedly arranged on the operating control multi-way valve.

[0012] Further, a main clutch slice valve is arranged on the operating control multi-way valve 6, and an a1 coil and a b1 coil are arranged on the main clutch slice valve.

[0013] Compared with the prior art, the hydraulic transmission device for ascending corn ears has the following beneficial effects:

[0014] 1. In the hydraulic transmission device for ascending corn ears, a hydraulic transmission system is adopted, the efficiency and reliability of transmission are improved, the ascending transmission of the corn ears is stable, the speed regulating valve can accurately control the oil flow through the BM series cycloid motor by adjusting the size of the throttling port, which helps to reduce the overload impact, protects the system from damage and reduces the failure rate.

[0015] 2. In the hydraulic transmission device for ascending corn ears, the BM series cycloid motor is arranged, the ascending device is reversely rotated by the reverse motor, so that the blocked material or the corn ears not completely ascending are reversely sent out, the blockage is effectively cleaned, the ascending is smooth, the operation efficiency is improved, and the stability and durability of the equipment are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the hydraulic transmission device for ascending corn ears in the preferred embodiment of the utility model.

[0017] ILLUSTRATIVE DESCRIPTION

[0018] 1. Traveling pump plug-in pump; 2. Cooler; 3. Ascending motor control valve; 4. Speed regulating valve; 5. BM series cycloid motor; 6. Operating control multi-way valve; 7. Main clutch oil cylinder; 8. Engine plug-in pump; 9. Hydraulic oil tank. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0020] Please refer to Figure 1 The embodiment aims to provide a hydraulic transmission device for corn ear lifting, which comprises an engine plug-in pump 8 and a traveling pump plug-in pump 1, the output end of the engine plug-in pump 8 is connected with a steering control multi-way valve 6, the engine plug-in pump 8 is used to provide a power source for the steering control hydraulic circuit, the input end of the engine plug-in pump 8 is connected with a hydraulic oil tank 9, and the input end of the traveling pump plug-in pump 1 is connected with a lifting motor control valve 3.

[0021] The lifting device transmission control device is realized by a separate hydraulic control circuit, which means that it will not be disturbed by other hydraulic systems or equipment, and the stability and reliability of the lifting device transmission can be ensured.

[0022] The traveling pump plug-in pump 1 is a hydraulic power source, the traveling pump plug-in pump 1 is a gear pump plugged on the traveling pump, and the original power output of the traveling pump is used to convert mechanical energy into hydraulic energy through the gear pump. This design not only simplifies the system structure, reduces the manufacturing cost, but also improves the overall efficiency of the system. The plug-in design makes the traveling pump plug-in pump 1 easily connected to the existing hydraulic system, without the need for large-scale modification of the original system, thereby reducing the difficulty of installation and maintenance.

[0023] The output end of the lifting motor control valve 3 is connected with the hydraulic oil tank 9 through a hydraulic oil pipe, and the output end of the traveling pump plug-in pump 1 is connected with the hydraulic oil tank 9 through a high-pressure oil pipe. When the traveling pump plug-in pump 1 is running, the oil in the hydraulic oil tank 9 will be pumped out and delivered to the lifting motor control valve 3 and other hydraulic elements after being pressurized. In this process, the pressure and flow of the oil are accurately controlled to meet the demand of the BM series trochoidal motor 5 for hydraulic energy. At the same time, the oil storage function of the hydraulic oil tank 9 ensures the continuous supply of oil, avoiding system failure due to insufficient oil.

[0024] A cooler 2 is arranged in parallel on the pipeline of the lifting motor control valve 3, and the cooler 2 is used to remove most of the heat of the system to ensure that the temperature of the hydraulic system is maintained within an appropriate range. The cooler 2 usually adopts air cooling or water cooling, and the heat in the oil is transferred to the outside air or cooling water through structures such as radiators or heat exchangers. This not only helps to reduce the oil temperature, improve the viscosity and lubrication performance of the oil, but also prolongs the service life of the hydraulic elements.

[0025] The input end of the lifting motor control valve 3 is connected with a BM series cycloid motor 5, which ensures that the pressurized oil from the walking pump insert pump 1 can smoothly enter the BM series cycloid motor 5, drive it to rotate, and the BM series cycloid motor 5 is connected with a speed regulating valve 4, which is used to adjust the motor speed, and the speed regulating valve 4 is actually a flow control valve, by adjusting the size of the throttle in it, the oil flow through the BM series cycloid motor 5 can be changed, so as to realize the accurate adjustment of the speed of the BM series cycloid motor 5.

[0026] The working principle of the speed regulating valve 4 is that when the oil flows through the speed regulating valve 4, due to the existence of the throttle, a certain pressure drop will be generated. By adjusting the size of the throttle, the size of the pressure drop can be changed, and then the oil flow through the BM series cycloid motor 5 is changed. Since the speed of the BM series cycloid motor 5 is proportional to the input flow, the adjustment of the speed regulating valve 4 is actually the adjustment of the speed of the BM series cycloid motor 5.

[0027] The input end of the hydraulic oil tank 9 is connected with the output end of the lifting motor control valve 3 through the hydraulic oil pipe, which ensures that when the BM series cycloid motor 5 completes the work, the hydraulic oil in it can smoothly flow back to the hydraulic oil tank 9 through the lifting motor control valve 3. During the backflow process, the hydraulic oil will carry the heat and impurities generated during the operation of the motor, and the design inside the hydraulic oil tank 9 helps to dissipate and filter these heat and impurities, so as to maintain the cleanliness and temperature stability of the oil.

[0028] The BM series cycloid motor 5 is symmetrically provided with A port and B port, which are respectively used to connect the positive rotation and reverse rotation oil from the lifting motor control valve 3, and the design of A port and B port ensures that the motor can produce corresponding rotation direction when receiving oil flow in different directions, and a coil and b coil are correspondingly provided for receiving electric control signal to control the movement of the valve core in the lifting motor control valve 3, so as to change the flow direction of the oil.

[0029] The lifting motor control valve 3 is an electrically controlled reversing valve, and the position of the valve core in it is determined by the energization state of a coil and b coil. When a coil is powered, the valve core moves to a position, so that the pressurized oil from the walking pump insert pump 1 enters the BM series cycloid motor 5 through A port to drive it to rotate in positive direction, at this time, the output shaft of the motor will rotate in the predetermined direction to realize the normal lifting of corn ears; on the contrary, when b coil is powered, the valve core moves to another position, the flow direction of the oil changes, and enters the motor through B port to drive it to rotate in reverse direction, at this time, the output shaft of the motor will rotate in reverse direction to realize the reverse operation of corn ears, which is helpful to remove the blocked materials or carry out reverse adjustment.

[0030] The input end of the operation control multi-way valve 6 is connected with a main clutch oil cylinder 7 for oil inlet, and is connected through a hydraulic oil pipe to ensure that when the valve core in the operation control multi-way valve 6 moves, the flow direction and flow rate of the oil can be accurately controlled, so that the oil filling and oil discharging operation of the main clutch oil cylinder 7 is realized, and a main clutch combination button M is fixedly arranged on the operation control multi-way valve 6. The combination of the header, the field and the peeling is realized through the main clutch one-way control of the operation control multi-way valve 6, and the operation control hydraulic circuit is provided with a power source by the engine plug-in pump 8 to provide the operation control multi-way valve 6 with pressure oil.

[0031] The operation control multi-way valve 6 is provided with a main clutch slice valve, and the main clutch slice valve is provided with a coil a1 and a coil b1, and the two coils are used for receiving electric control signals. When the main clutch combination button M is pressed, the coil b1 of the main clutch slice valve of the operation control multi-way valve 6 is electrified, the A1 oil way is connected, the main clutch oil cylinder 7 is filled with oil, the main clutch tensioning mechanism is actuated, and the main clutch starts to work; on the contrary, through electric control, when the main clutch combination button M is pressed, the coil b1 of the main clutch slice valve of the operation control multi-way valve 6 is electrified, and the coil a of the lifting motor control valve 3 is electrified at the same time, the A oil way of the BM series cycloid motor 5 is connected, the BM series cycloid motor 5 is rotated in the forward direction, and the fruit cluster starts to be lifted.

[0032] In specific use, the main clutch combination button M on the operation control multi-way valve 6 is pressed, the coil b1 of the main clutch slice valve in the operation control multi-way valve 6 is electrified, the A1 oil way is connected, the main clutch oil cylinder 7 is filled with oil, the main clutch tensioning mechanism is actuated, the combination of the main clutch is realized, then the coil a of the lifting motor control valve 3 is electrified, so that the pressurized oil from the walking pump plug-in pump 1 enters the BM series cycloid motor 5 through the A port, the BM series cycloid motor 5 starts to rotate in the forward direction, and is prepared to lift the fruit cluster, in this process, the size of the throttle port in the speed regulating valve 4 is adjusted to change the oil flow rate through the BM series cycloid motor 5, so that the rotation speed of the BM series cycloid motor 5 is adjusted, the corn fruit cluster is smoothly lifted to a designated position or a container, and in the lifting process, the cooler 2 continuously works to take away the heat generated by the system, when the BM series cycloid motor 5 completes the work, the hydraulic oil in the BM series cycloid motor 5 smoothly flows back to the hydraulic oil tank 9 through the lifting motor control valve 3, if it is needed to end the lifting or to perform the reverse operation to remove the blocked material, the coil b of the lifting motor control valve 3 is electrified, the oil flow direction is reversed, enters the BM series cycloid motor 5 through the B port, drives the BM series cycloid motor 5 to reverse, and the reverse operation of the corn fruit cluster is realized.

[0033] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in any form, although the present application has been disclosed as above with the preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art, without departing from the technical scheme of the present application, can make some changes or modifications to the above disclosed technical content as equivalent embodiments, but as long as it does not depart from the technical scheme of the present application, according to the technical essence of the present application, any modification, equivalent change and modification of the above embodiments are still within the scope of the technical scheme of the present application.

Claims

1. A hydraulic transmission for corn ear lifting, comprising an engine insert pump (8) and a walking pump insert pump (1), characterized in that, The output end of the engine plug pump (8) is connected with a steering control multi-way valve (6), the engine plug pump (8) is used for providing power source for the steering control hydraulic circuit, the input end of the engine plug pump (8) is connected with a hydraulic oil tank (9), and the input end of the traveling pump plug pump (1) is connected with a lifting motor control valve (3).

2. The hydraulic drive for corn ear lift according to claim 1, characterized in that, The output end of the lifting motor control valve (3) is connected with the hydraulic oil tank (9), and the output end of the traveling pump plug pump (1) is connected with the hydraulic oil tank (9).

3. The hydraulic drive for corn ear lift according to claim 1, characterized in that, A cooler (2) is arranged in parallel on the pipeline of the lifting motor control valve (3), and the cooler (2) is used for taking away most of the heat of the system.

4. The hydraulic drive for corn ear lift according to claim 1, characterized in that, The input end of the lifting motor control valve (3) is connected with a BM series cycloid motor (5), the BM series cycloid motor (5) is connected with a speed regulating valve (4), and the speed regulating valve (4) is used for adjusting the motor speed.

5. The hydraulic drive for corn ear lift according to claim 4, characterized in that, The BM series cycloid motor (5) is symmetrically provided with an A port and a B port, and a coil a and a coil b are correspondingly arranged.

6. The hydraulic drive for corn ear lift according to claim 1, characterized in that, The input end of the steering control multi-way valve (6) is connected with a main clutch oil cylinder (7) for oil inlet, and the steering control multi-way valve (6) is fixedly provided with a main clutch combination button M.

7. The hydraulic drive for corn ear lift according to claim 1, characterized in that, The steering control multi-way valve (6) is provided with a main clutch slice valve, and the main clutch slice valve is provided with a coil a1 and a coil b1.

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