Hydraulic driving system mounted on corn harvester

Abstract

The utility model relates to a top-mounted hydraulic driving system of a corn harvester, which comprises a header, a peeling machine and an elevator, the header and the peeling machine are connected with the top-mounted hydraulic driving system, and the peeling machine is connected with the elevator through a chain; the loading hydraulic driving system comprises a load-sensitive pump, a load-sensitive valve, a header driving motor, an elevator driving motor and a hydraulic oil tank. By introducing a hydraulic driving mode into the upper part of the corn harvester, electric control starting and closing can be realized, the impact is extremely small, meanwhile, the reverse rotation of the component can be quickly realized through electric control, and finer and quicker driving control on the upper part of the corn harvester is completed. The utility model has the advantages of simple layout, high safety, strong reliability and convenience in maintenance, saves energy consumption, can realize precise operation through program control after hydraulic drive and electric control are introduced, can be matched with different rotating speeds, and improves the driving experience and the intelligentization of the whole machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to corn harvester technical field especially is related to a corn harvester upper loading hydraulic drive system. BACKGROUND

[0002] The corn harvester upper loading part mainly has header, elevator and peeler, and completes the harvesting operation through cooperation of each part, and the power input generally comes from the engine, and the power is transmitted through chain or belt.The existing upper loading drive mode is mainly realized through mechanical transmission, including but not limited to the following parts: power output end, header input through shaft, peeler transition assembly and peeler input main shaft.The power output end is connected with the header input through shaft and the peeler transition assembly through a plurality of belts, the header input through shaft is connected with the header component through a plurality of header input chains, the peeler transition assembly is connected with the peeler input main shaft through peeler input chain, and the peeler input main shaft is connected with the elevator component through elevator chain.

[0003] Although the traditional mechanical transmission mode has high efficiency and low cost, it has some limitations.Firstly, the mechanical gearbox is difficult to shift, and it is difficult to realize stepless speed regulation and reverse rotation, which is not conducive to fine operation.Secondly, the clutch at the flywheel end of the engine is used to control the power input of the upper loading drive, but even with technological progress, wear and damage may still occur in high-speed transmission.In addition, the belt transmission or chain transmission is limited when transmitting power over a long distance, and the transition wheel needs to be increased, which limits the overall layout, and the high-speed rotation of the belt and chain has certain danger. INVENTION CONTENTS

[0004] In view of the problems that the mechanical transmission mode of the corn harvester upper loading part in the prior art is difficult to realize stepless speed regulation and rapid reverse rotation, and the structure is complex and limits the overall layout, the utility model provides a corn harvester upper loading hydraulic drive system, which comprises: a header, a peeler and an elevator, the header and the peeler are connected with the upper loading hydraulic drive system, and the peeler is connected with the elevator through a chain.

[0005] The upper loading hydraulic drive system comprises a load sensing pump, a load sensing valve, a header drive motor, an elevator drive motor and a hydraulic oil tank.

[0006] The load sensing pump is connected with the hydraulic oil tank through a pump oil suction pipe and a pump oil drain pipe, and the load sensing pump is connected with the load sensing valve through a pump oil supply pipe and a pressure feedback pipe.

[0007] The load sensing valve is connected with the hydraulic oil tank through a load sensing valve oil return pipe, the load sensing valve is connected with the header drive motor through a motor oil supply pipe I and a motor oil supply pipe II, and the load sensing valve is connected with the elevator drive motor through a motor oil supply pipe III and a motor oil supply pipe IV.

[0008] The cutting platform driving motor is connected with the hydraulic oil tank through a motor oil drain pipe.

[0009] Further, the cutting platform, the peeling machine and the elevator are fixed to the vehicle frame by bolts.

[0010] Further, the cutting platform driving motor is connected with the cutting platform through a spline.

[0011] Further, the elevator driving motor is connected with the elevator through a spline.

[0012] Further, the load-sensitive pump is assembled to the engine through a spline shaft.

[0013] Further, the load-sensitive valve is fixed to the vehicle frame by bolts.

[0014] Further, the hydraulic oil tank is fixed to the vehicle frame by bolts.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By introducing a hydraulic drive mode on the corn harvester, electric control start and stop can be realized, the impact is small, and the components can be quickly reversed through electric control to realize more precise and fast driving control of the components on the corn harvester. The utility model has simple layout, high safety, strong reliability, is convenient to maintain, saves energy, and after introducing hydraulic drive and electric control, precise operation can be realized through program control, different rotating speeds can be matched, and the driving experience and the intelligence of the whole machine are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the whole connection of the hydraulic drive system of the corn harvester in the utility model;

[0018] In the drawing: 1, cutting platform; 2, cutting platform driving motor; 3, motor oil supply pipe I; 4, motor oil drain pipe; 5, motor oil supply pipe II; 6, load-sensitive valve; 7, pump oil drain pipe; 8, pump oil supply pipe; 9, pump oil suction pipe; 10, load-sensitive pump; 11, pressure feedback pipe; 12, peeling machine; 13, motor oil supply pipe III; 14, motor oil supply pipe IV; 15, elevator driving motor; 16, elevator; 17, load-sensitive valve oil return pipe; 18, hydraulic oil tank; 19, chain. DETAILED DESCRIPTION

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "upper," "lower," "front," "rear," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or part referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0021] The working components of the corn harvester include a header 1, a peeler 12, and a conveyor 16. For example... Figure 1 As shown, the hydraulic drive system for a corn harvester provided by this utility model also includes an upper hydraulic drive system. The header 1 and the elevator 16 are connected to the upper hydraulic drive system, and the peeler 12 is connected to the elevator 16 via a chain 19. The upper hydraulic drive system includes a load-sensitive pump 10, a load-sensitive valve 6, a header drive motor 2, an elevator drive motor 15, and a hydraulic oil tank 18.

[0022] Assemble the components as shown in the diagram. The cutting table 1, peeler 12, and elevator 16 are bolted to the frame. The cutting table drive motor 2 is connected to the cutting table 1 via a spline, and the elevator drive motor 15 is connected to the elevator 16 via a spline. The load-sensitive pump 10 is mounted to the engine via a splined shaft, and the load-sensitive valve 6 is bolted to the frame. During final vehicle assembly, all the above components are assembled, and then the hydraulic oil tank 18 is assembled to the complete machine.

[0023] After the assembly of the components is completed, the oil pipes are connected in the final assembly stage. The load-sensitive pump 10 is connected to the hydraulic oil tank 18 through the pump suction pipe 9 and the pump drain pipe 7, and is connected to the load-sensitive valve 6 through the pump supply pipe 8 and the pressure feedback pipe 11. The load-sensitive valve 6 is connected to the hydraulic oil tank 18 through the load-sensitive valve return pipe 17, is connected to the cutterhead drive motor 2 through the motor supply pipe I 3 and the motor supply pipe II 5, and is connected to the elevator drive motor 15 through the motor supply pipe III 13 and the motor supply pipe IV 14. The cutterhead drive motor 2 is connected to the hydraulic oil tank 18 through the motor drain pipe 4. After the oil pipes are connected, hydraulic oil is filled.

[0024] The working principle of the upper-mounted hydraulic drive system is as follows:

[0025] The engine power is directly output to the load-sensitive pump 10, and then the load-sensitive pump 10 sucks hydraulic oil from the hydraulic oil tank 18 through the pump suction pipe 9. After passing through the pump, the hydraulic oil is transmitted to the load-sensitive valve 6 through the pump supply pipe 8. The load-sensitive valve 6 is controlled by the electrical system related program, and the start, stop, reverse and other functions of the upper-mounted device can be quickly and conveniently realized by setting the buttons in the cab.

[0026] The load-sensitive valve 6 has two working connections, which respectively control the cutterhead drive and the elevator drive.

[0027] First connection: after the load-sensitive valve 6 is controlled to reverse, the pressure oil is transmitted to the cutterhead drive motor 2 through the motor supply pipe II 5, the motor is positively transmitted, the cutterhead 1 is driven to rotate, the return oil returns to the load-sensitive valve 6 through the motor supply pipe I 3, and then returns to the hydraulic oil tank 18 through the load-sensitive valve return pipe 17, forming a complete loop. When the cutterhead needs to be reversed, the load-sensitive valve 6 is reversed, the pressure oil is transmitted to the cutterhead drive motor 2 through the motor supply pipe I 3, the motor is reversed, the return oil returns to the load-sensitive valve 6 through the motor supply pipe II 5, and then returns to the hydraulic oil tank 18 through the load-sensitive valve return pipe 17, forming a complete loop.

[0028] The motor has a flushing valve, and part of the oil overflowing from the pressure pipeline enters the motor housing and directly returns to the hydraulic oil tank 18 through the motor drain pipe 4.

[0029] The second link: after the load sensitive valve 6 is controlled to reverse, the pressure oil is transmitted to the elevator drive motor 15 through the motor oil supply pipe III 13, the motor positive transmission is realized, the elevator 16 is driven to rotate, the back oil is returned to the load sensitive valve 6 through the motor oil supply pipe IV 14, and then returned to the hydraulic oil tank 18 through the load sensitive valve back oil pipe 17, so that a complete loop is formed. When the elevator 16 needs to be reversed, the load sensitive valve 6 is reversed, the pressure oil is transmitted to the elevator drive motor 15 through the motor oil supply pipe IV 14, the motor reverse is realized, the back oil is returned to the load sensitive valve 6 through the motor oil supply pipe III 13, and then returned to the hydraulic oil tank 18 through the load sensitive valve back oil pipe 17, so that a complete loop is formed.

[0030] After the load sensitive valve 6 is reversed, the pressure signal is transmitted to the load sensitive pump 10 through the pressure feedback pipe 11, so that the pump displacement is changed. The excess flow in the load sensitive pump 10 is returned to the hydraulic oil tank 18 through the pump oil drain pipe 7.

[0031] The barker 12 is connected with the elevator 16 through the chain 19. In the above-mentioned second link working connection, after the elevator 16 rotates, the barker 12 is driven to rotate in a mechanical transmission mode through the chain 19.

[0032] The above-mentioned hydraulic drive system on the corn machine can realize electric control starting and closing, has a small impact, can realize component reverse through electric control, has simple layout, high safety, strong reliability, is convenient to maintain, saves energy consumption, and after the hydraulic drive and electric control are introduced, precise operation can be realized through program control, different rotating speeds can be matched, and the driving experience and the whole machine intelligence are improved.

[0033] The above-mentioned only is the preferred embodiment of the utility model, and does not limit the implementation range of the utility model. It should be noted that for ordinary technicians in the technical field, on the premise of not departing from the technical principles of the utility model, a plurality of improvements and modifications can be made, and the improvements and modifications should be covered in the protection range of the utility model.

Claims

1. A hydraulic drive system for a corn harvester, comprising a header (1), a peeler (12), and a conveyor (16), characterized in that, The cutting platform (1) and the peeling machine (12) are connected to the upper hydraulic drive system, and the peeling machine (12) is connected to the elevator (16) via a chain (19); The upper hydraulic drive system includes a load-sensitive pump (10), a load-sensitive valve (6), a cutting table drive motor (2), a hoist drive motor (15), and a hydraulic oil tank (18). The load-sensitive pump (10) is connected to the hydraulic oil tank (18) through the pump suction pipe (9) and the pump discharge pipe (7), and the load-sensitive pump (10) is connected to the load-sensitive valve (6) through the pump supply pipe (8) and the pressure feedback pipe (11). The load-sensitive valve (6) is connected to the hydraulic oil tank (18) through the load-sensitive valve return oil pipe (17); the load-sensitive valve (6) is connected to the cutting table drive motor (2) through the motor supply oil pipe I (3) and the motor supply oil pipe II (5); the load-sensitive valve (6) is connected to the elevator drive motor (15) through the motor supply oil pipe III (13) and the motor supply oil pipe IV (14). The cutting table drive motor (2) is connected to the hydraulic oil tank (18) through the motor drain pipe (4).

2. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The cutting table (1), the peeling machine (12), and the elevator (16) are fixed to the frame by bolts.

3. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The cutting table drive motor (2) is connected to the cutting table (1) via a spline.

4. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The elevator drive motor (15) is connected to the elevator (16) via a spline.

5. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The load-sensitive pump (10) is mounted to the engine via a splined shaft.

6. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The load-sensitive valve (6) is fixed to the vehicle frame by bolts.

7. The hydraulic drive system for a corn harvester according to claim 1, characterized in that, The hydraulic oil tank (18) is fixed to the vehicle frame by bolts.

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