阅读说明：本技术 一种具备液压行走系统的玉米收获机 (Maize harvesting machine who possesses hydraulic pressure traveling system ) 是由 李衡 李侠 杨香林 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种具备液压行走系统的玉米收获机,包括液压行走系统、发动机、铡草机、喂入装置、秸秆割台,所述秸秆割台与喂入装置连接,所述喂入装置与铡草机连接,所述铡草机安装在车身前端,所述发动机的输出轮通过传动系统与铡草机的铡草刀输入轮传动连接,所述液压行走系统用于驱动行走轮。通过液压行走系统驱动收获机行走,降低驱动系统的体积和质量,结构简单,液压管线布置灵活,更好适应收获机其余功能性装置的结构。通过液压行走系统同时带动刹车机构,使整车的结构更加的简单。此外,本发明提供的喂入装置,喂入速度快,提高了收获效率,是一种可靠性高、喂入效率高、质量好的玉米收获机。(The invention discloses a corn harvester with a hydraulic traveling system, which comprises the hydraulic traveling system, an engine, a hay cutter, a feeding device and a straw cutting table, wherein the straw cutting table is connected with the feeding device, the feeding device is connected with the hay cutter, the hay cutter is arranged at the front end of a vehicle body, an output wheel of the engine is in transmission connection with a hay cutter input wheel of the hay cutter through a transmission system, and the hydraulic traveling system is used for driving traveling wheels. The harvester is driven to walk by the hydraulic walking system, the volume and the mass of the driving system are reduced, the structure is simple, the hydraulic pipeline arrangement is flexible, and the harvester is better suitable for the structures of other functional devices of the harvester. The hydraulic traveling system drives the brake mechanism at the same time, so that the structure of the whole vehicle is simpler. In addition, the feeding device provided by the invention has the advantages of high feeding speed, high harvesting efficiency and high reliability, feeding efficiency and quality.)

1. The utility model provides a maize picker that possesses hydraulic pressure traveling system, includes hydraulic pressure traveling system, engine (2), hay cutter (3), feeding device (4), straw header (5) are connected with feeding device (4), feeding device (4) are connected with hay cutter (3), install at the automobile body front end hay cutter (3), the output wheel of engine (2) passes through transmission system and is connected its characterized in that with hay cutter input wheel (3.1) transmission of hay cutter (3): the hydraulic traveling system is used for the road wheel of drivingcirculation, hydraulic traveling system includes hydraulic drive system and hydraulic control system, hydraulic drive system includes hydraulic pump (1.1), hydraulic motor (1.2), gearbox (1.3), hub reduction gear (1.4), hydraulic oil radiator (1.5) and hydraulic tank (1.6), engine (2) are provided with the transfer case, install on the transfer case hydraulic pump (1.1), through transfer case drive hydraulic pump (1.1).

2. The corn harvester of claim 1, wherein: the hydraulic pump is characterized in that a hydraulic pump pumping port (1.111) is arranged on the hydraulic pump (1.1), the hydraulic pump pumping port (1.111) is connected with a first hydraulic oil tank oil outlet (1.61) through a hydraulic oil pipe, a low-pressure hydraulic oil filter (1.7) is arranged on the hydraulic oil pipe between the hydraulic pump pumping port (1.111) and the first hydraulic oil tank oil outlet (1.61), a hydraulic pump port A (1.112) and a hydraulic pump port B (1.113) are arranged on the hydraulic pump (1.1), a motor port A (1.21) and a motor port B (1.22) are arranged on the hydraulic motor (1.2), the hydraulic pump port A (1.112) is connected with the motor port A (1.21) through the hydraulic oil pipe, the hydraulic pump port B (1.113) is connected with the motor port B (1.22) through the hydraulic oil pipe, a hydraulic pump oil return port (1.115) is further arranged on the hydraulic pump (1.1), and a motor pressure relief port (1.23) is arranged on the hydraulic motor (1.2), and the motor pressure relief port (1.23) is connected with a hydraulic pump oil return port (1.115) through a hydraulic oil pipe.

3. A corn harvester as in claim 2, wherein: still be provided with hydraulic pump outlet C (1.114) on hydraulic pump (1.1), be provided with radiator oil inlet (1.51) and radiator oil-out (1.52) on hydraulic oil radiator (1.5), still be provided with hydraulic tank oil return opening (1.63) on hydraulic tank (1.6), hydraulic pump outlet C (1.114) is connected with radiator oil inlet (1.51) through hydraulic oil pipe, still be provided with hydraulic tank oil return opening (1.63) on radiator oil-out (1.52) through hydraulic pipeline and hydraulic tank (1.6) and be connected.

4. A corn harvester as in claim 3, wherein: a motor mounting seat (1.31) is arranged on the gearbox (1.3), the hydraulic motor (1.2) is arranged on the motor mounting seat (1.31), the hydraulic motor (1.2) is used for driving a gearbox (1.3), a gearbox output shaft (1.32) is arranged on the gearbox (1.3), the wheel side speed reducing device (1.4) is provided with a wheel side speed reducing device input shaft (1.41) and a travelling wheel, the output shaft (1.32) of the gearbox is in transmission connection with the input shaft (1.41) of the hub reduction gear through a transmission shaft, the wheel side speed reducing device (1.4) is also provided with a brake disc (1.42) and a brake block mechanism (1.43), the brake disc is arranged on an input shaft (1.41) of the speed reducer, the brake block mechanism (1.43) is connected with a hydraulic pump (1.1) through a hydraulic oil pipe, a brake hydraulic oil outlet is further arranged on the hydraulic pump (1.1), and the brake hydraulic oil outlet is connected with the brake block mechanism (1.43) through the hydraulic oil pipe.

5. A corn harvester as in claim 4, wherein: the hydraulic control system comprises a gear pump (1.8), a control oil filter (1.9), a multi-way valve (1.10), an oil tank oil return opening filter (1.11), a steering oil cylinder (1.12) and a multi-way control valve, wherein a first hydraulic oil tank oil outlet (1.62) is further arranged on a hydraulic oil tank (1.6), a gear pump oil inlet (1.81) is arranged on the gear pump (1.8), the first hydraulic oil tank oil outlet (1.62) is connected with the gear pump oil inlet (1.81) through a hydraulic oil pipe, a first gear pump oil outlet (1.82) and a second gear pump oil outlet (1.83) are further arranged on the gear pump (1.8), the first gear pump oil outlet (1.82) is connected with an inlet of the multi-way control valve through the hydraulic oil pipe, and the second gear pump oil outlet (1.83) is connected with an inlet of the multi-way control valve (1.10) through the hydraulic oil pipe.

6. A corn harvester as in claim 5, wherein: and a control oil filter (1.9) is arranged on a hydraulic oil pipe between the second gear pump oil outlet (1.83) and the multi-way valve (1.10), and the gear pump (1.8) is installed on the engine (2) and drives the gear pump (1.8) to work through a transfer case of the engine.

7. A corn harvester as in claim 6, wherein: the outlet of the multi-way valve (1.10) is connected with a Y-shaped branched oil pipe, one branched pipe of the Y-shaped branched oil pipe is connected with the outlet of the multi-way control valve, the other branched pipe is connected with an oil tank oil return filter (1.11), and the oil tank oil return filter (1.11) is arranged on a hydraulic oil tank (1.6).

8. The corn harvester of claim 1, wherein: the straw cutting table (5) comprises a cutting table main shaft (5.1), a swing box (5.3), a fixed cutter (5.5) and a movable cutter (5.4), wherein a cutting table main shaft input wheel (5.11), a cutting table main shaft output wheel I (5.12) and a cutting table main shaft output wheel II (5.13) are arranged on the cutting table main shaft (5.1), a swing box input wheel (5.31) is arranged on the swing box (5.3), the swing box input wheel is in transmission connection with the cutting table main shaft output wheel I (5.13) through a transmission belt or a chain, the swing box (5.3) is in transmission connection with the movable cutter (5.4), the feeding device (4) comprises a feeding main shaft (4.1), the feeding main shaft input wheel (4.11), the feeding main shaft output wheel (4.12) and a main shaft output gear (4.13) are arranged on the feeding main shaft (4.1), and the feeding main shaft (4.1) is in transmission connection with a universal coupling (4.9), be provided with jackshaft output wheel (4.101) on jackshaft (4.10), jackshaft output wheel (4.101) are connected through drive belt or chain and header main shaft input wheel (5.11) transmission that set up on header main shaft (5.1).

9. A corn harvester as in claim 8, wherein: the feeding device (4) further comprises a front convex rib roller (4.3) and a rear feeding smooth roller (4.2) which are positioned on the lower layer, and a front sawtooth knife roller (4.8) and a rear long knife roller (4.7) which are positioned on the upper layer, wherein feeding rib rods (4.32) are uniformly distributed on the circumference of the side wall of the front convex rib roller (4.3), one end of each feeding rib roller is provided with a front convex rib roller input gear (4.31), one end of each rear feeding smooth roller (4.2) is provided with a rear feeding smooth roller input gear (4.21), a plurality of sawtooth blades (4.82) are uniformly distributed on the circumference of the side wall of the front sawtooth knife roller (4.8), one end of each rear long knife roller (4.81) is provided with a front sawtooth knife roller input gear, one end of each rear long knife roller (4.7) is uniformly distributed on the circumference of the side wall of the rear long knife roller (4.72), one end of each rear long knife roller input gear (4.71) is provided with a rear long knife roller input gear (4.71), a main shaft output gear (4.13) on the main shaft (4.1) is meshed with the front convex rib roller input gear (4.31) and the rear long knife roller input gear (21.21), thereby driving the front convex rib roller (4.3) and the rear feeding smooth roller (4.2) to rotate simultaneously.

10. A corn harvester as in claim 9, wherein: a hay cutter input wheel (3.1) and a hay cutter output wheel (3.2) are arranged on a hay cutter shaft of the hay cutter (3), the hay cutter input wheel (3.1) is in transmission connection with an engine output wheel (2.1) of the engine (2) through a transmission system, and the hay cutter output wheel (3.2) is in transmission connection with a feeding main shaft input wheel (4.11) on a feeding main shaft (4.1) through a transmission belt or a chain.

Technical Field

The invention relates to a corn harvester, in particular to a corn harvester with a hydraulic traveling system, and belongs to the technical field of corn harvesting equipment.

Background

The corn harvester is agricultural equipment for harvesting and stacking corn ears and straws. The walking system of most corn harvesters adopts traditional mechanical transmission. Corn harvester generally is provided with numerous mechanisms such as ear header, straw header, lift conveyer, peeler, garrulous skin machine, grass case and grain bin, adopts mechanical transmission's corn harvester, and mechanical transmission system is bulky and weight is big, and its drive disk assembly is more, and above-mentioned each functional mechanism need be avoided to each drive disk assembly, leads to mechanical transmission system to need to set up more levels and just can transmit to the walking wheel, and the structure is more numerous and diverse, and transmission efficiency hangs down.

The existing hydraulic walking system can not provide too high torque for the motor vehicle, and the corn harvester just does not need too large driving torque when walking. Therefore, in order to avoid adopting a complex mechanical walking system, a hydraulic walking system is adopted in part of the corn harvester. For example, the prior patent ZL201822181440.8 discloses a hydrostatic traveling driving system suitable for a corn harvester for harvesting both ears and stalks, which is directly connected with a gearbox through a fixed-displacement motor, so that a stepless speed change wheel and a clutch are eliminated, and traveling faults are reduced. The electric displacement control valve controls the steering oil cylinder to realize the control of the opening and the direction of the variable displacement pump so as to control the speed and the direction of the fixed displacement motor. However, the mechanical brake system still needs to be arranged independently for braking, the structure is complex, the reliability is low, the high-pressure oil pipe of the control oil way directly comes from the variable displacement pump, the pressure cannot be accurately controlled, the displacement control valve needs high-quality oil, and oil and magazines in the variable displacement pump are high, so that the control oil way is easily blocked.

In addition, the transmission system of the straw cutting table and the straw feeding device of the existing corn harvester has complex structure, more transmission stages and low transmission efficiency. And the cutting guide of the straw header and the feeding effect of the straw feeding device are not ideal, which easily results in the missing cutting of the straw, for example, the prior patent ZL201310064490.7 discloses a small and medium-sized self-propelled stalk-ear-harvesting corn combine harvester, the stalk feeding auger of which adopts a common auger structure and cannot accurately guide the cut straw to the straw feeding device. Secondly, the straw feeding device adopts a front feeding roller, a middle feeding roller and a rear feeding roller which are positioned at the same layer, and the feeding device with the structure has poor feeding effect, and partial straws with inaccurate positions cannot be normally fed into the hay cutter. Secondly, the arrangement mode of one line is adopted, the feeding speed is slow, and the harvesting efficiency is reduced.

Therefore, the hydraulic walking system with high reliability and the corn harvester with high cutting guide and feeding efficiency and good quality have very important significance.

Disclosure of Invention

In view of the above prior art, an object of the present invention is to provide a corn harvester with a hydraulic traveling system, wherein a brake oil pipe is arranged on a variable displacement pump, and the braking system is powered by the brake oil pipe, so as to avoid a separate mechanical braking system. Secondly, the control oil circuit is provided with the gear pump alone, through the accurate control oil pressure that provides of gear pump, is provided with filter and oil return pipe in the control oil circuit moreover for control system's is more reliable and stable. In addition, a feeding deflector rod is arranged between the small packing augers on the two sides of the header feeding auger, so that the guiding and feeding effects are improved, the feeding device is arranged on the upper side and the lower side, and each feeding roller has different functions, so that the feeding quality and the feeding efficiency are improved.

The purpose of the invention is realized by the following technical scheme.

The utility model provides a maize picker who possesses hydraulic pressure traveling system, includes hydraulic pressure traveling system, engine, hay cutter, feeding device, straw header, the straw header is connected with feeding device, feeding device is connected with the hay cutter, the hay cutter is installed at the automobile body front end, the output wheel of engine passes through transmission system and is connected with the hay cutter input wheel transmission of hay cutter, hydraulic pressure traveling system is used for the road wheel that drives, hydraulic pressure traveling system includes hydraulic drive system and hydraulic control system, hydraulic drive system includes hydraulic pump, hydraulic motor, gearbox, wheel speed reducer, hydraulic oil radiator and hydraulic tank, the engine is provided with the transfer case, the hydraulic pump is installed on the transfer case, through transfer case drive hydraulic pump.

Further, be provided with hydraulic pump on the hydraulic pump and go into the hydraulic fluid port, hydraulic pump goes into the hydraulic fluid port and is connected with hydraulic tank oil-out one through hydraulic oil pipe, be provided with the low pressure hydraulic oil filter on the hydraulic oil pipe between hydraulic pump hydraulic fluid port and the hydraulic tank oil-out one, be provided with hydraulic pump hydraulic fluid port A and hydraulic pump hydraulic fluid port B on the hydraulic pump, last motor hydraulic fluid port A and the motor hydraulic fluid port B of being provided with of hydraulic motor, hydraulic pump hydraulic fluid port A is connected with motor hydraulic fluid port A through hydraulic oil pipe, hydraulic pump hydraulic fluid port B passes through hydraulic oil pipe and is connected with motor hydraulic fluid port B, still be provided with the hydraulic pump oil return opening on the hydraulic pump, be provided with motor pressure release mouth on the hydraulic motor, motor pressure release mouth passes through hydraulic oil pipe and is connected with the hydraulic pump oil return opening.

Further, still be provided with hydraulic pump outlet C on the hydraulic pump, be provided with radiator oil inlet and radiator oil-out on the hydraulic oil radiator, still be provided with hydraulic tank oil return opening on the hydraulic tank, hydraulic pump outlet C passes through hydraulic pressure oil pipe and is connected with radiator oil inlet, the radiator oil-out still is provided with hydraulic tank oil return opening through hydraulic pressure pipeline and hydraulic tank and is connected.

Further, be provided with the motor mount pad on the gearbox, hydraulic motor installs on the motor mount pad, hydraulic motor is used for driving the gearbox, be provided with the gearbox output shaft on the gearbox, last round of edge decelerator input shaft and the walking wheel of being provided with of round of edge decelerator, the gearbox output shaft passes through the transmission shaft and is connected with round of edge decelerator input shaft transmission, still be provided with brake disc and brake block mechanism on the round of edge decelerator, the brake disc sets up on the decelerator input shaft, brake block mechanism passes through hydraulic pressure oil pipe hydraulic pump connection, still is provided with the brake hydraulic oil export on the hydraulic pump, and the brake hydraulic oil export passes through hydraulic pressure oil pipe and is connected with brake block mechanism.

Further, hydraulic control system includes gear pump, control oil filter, multiple unit valve, oil tank oil return opening filter, steering cylinder, multiple unit control valve, still be provided with hydraulic tank oil-out one on the hydraulic tank, be provided with gear pump oil-in mouth on the gear pump, hydraulic tank oil-out one is connected through hydraulic pressure oil pipe and gear pump oil-in mouth, still be provided with gear pump oil-out one and gear pump oil-out two on the gear pump, gear pump oil-out one is through the entry linkage of hydraulic pressure oil pipe with multiple unit control valve, the entry linkage of hydraulic pressure oil pipe and multiple unit control valve is crossed to gear pump oil-out two.

Furthermore, a control oil filter is arranged on a hydraulic oil pipe between the second gear pump oil outlet and the multi-way valve, the gear pump is installed on the engine, and the transfer case of the engine drives the gear pump to work.

Furthermore, the outlet of the multi-way valve is connected with a Y-shaped branched oil pipe, one branched pipe of the Y-shaped branched oil pipe is connected with the outlet of the multi-way control valve, the other branched pipe is connected with an oil tank oil return port filter, and the oil tank oil return port filter is arranged on the hydraulic oil tank.

Further, the straw header includes header main shaft, swing case, decides the cutting knife and moves the cutting knife, be provided with header main shaft input wheel and header main shaft output wheel one and header main shaft output wheel two on the header main shaft, be provided with the swing case input wheel on the swing case, the swing case input wheel passes through drive belt or chain and is connected with header main shaft output wheel transmission, the swing case is connected with moving the cutting knife transmission, feeding device includes the feeding main shaft, be provided with feeding main shaft input wheel, feeding main shaft output wheel and feeding main shaft output gear on the feeding main shaft, the feeding main shaft passes through universal coupling one and is connected with jackshaft transmission, be provided with jackshaft output wheel on the jackshaft, jackshaft output wheel passes through drive belt or chain and is connected with header main shaft input wheel transmission that sets up on the header main shaft.

Further, feeding device is still including preceding protruding muscle roller, the back feeding smooth roll that is located the lower floor and preceding sawtooth break roller, the back long break roller that are located the upper strata, the lateral wall circumference equipartition of preceding protruding muscle roller has the feeding muscle pole, and one end is provided with preceding protruding muscle roller input gear, the one end of back feeding smooth roll is provided with back feeding smooth roll input gear, the circumference equipartition has a plurality of sawtooth blades on the lateral wall of preceding sawtooth break roller, and one end is provided with preceding sawtooth break roller input wheel, back long break roller lateral wall circumference equipartition has the long blade, and one end is provided with back long break roller input wheel, the epaxial feeding main shaft output gear of feeding main shaft simultaneously with preceding protruding muscle roller input gear and back feeding smooth roll input gear meshing, and then drives preceding protruding muscle roller and back feeding smooth roll simultaneously and rotate.

Furthermore, a hay cutter input wheel and a hay cutter output wheel are arranged on a hay cutter shaft of the hay cutter, the hay cutter input wheel is in transmission connection with an engine output wheel of an engine through a transmission system, and the hay cutter output wheel is in transmission connection with a feeding main shaft input wheel on a feeding main shaft through a transmission belt or a chain.

The invention has the advantages that:

1. according to the corn harvester with the hydraulic traveling system, the hydraulic driving system is formed by the hydraulic pump, the hydraulic motor, the gearbox, the wheel reduction gear, the hydraulic oil radiator and the hydraulic oil tank, the hydraulic control system is formed by the gear pump, the control oil filter, the multi-way valve, the oil tank oil return port filter, the steering oil cylinder and the multi-way control valve, and the traditional mechanical driving structure is replaced, so that the traveling system is small in occupied space and light in weight, the rest functional devices are convenient to arrange, the quality of the whole corn harvester is reduced, the hydraulic oil pipeline is flexible to arrange, the complex space structure of the corn harvester can be better adapted, multi-stage transmission is not needed, and the transmission efficiency is improved.

2. The hydraulic pump is adopted to provide braking hydraulic pressure for the brake system, a braking power device does not need to be additionally arranged, and the structure of the whole vehicle is simplified.

3. The control oil circuit adopts an independent gear pump, the pressure of the gear pump is stable, and the control unit of the traveling system can be more accurate and stable.

4. The filters are arranged on the oil outlet pipeline of the oil tank, the control hydraulic oil pipeline and the control oil return pipeline, so that hydraulic oil in devices such as a gear pump, a hydraulic pump and a hydraulic motor can be cleaner, equipment faults caused by blockage can be prevented, and the fault rate is reduced.

5. Two rows of feeding rollers about feeding device adopts, through preceding protruding muscle roller, the back feeding smooth roll of lower floor and the preceding sawtooth break roller, the long break roller combination of back that are located the upper strata, more effectual quick with corn stalk feeding hay cutter in, prevent that the corn stalk from skidding and the feeding failure that causes, improve the blue or green efficiency of storing up of straw.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the overall structure of a corn harvester.

Fig. 2 is a schematic diagram of the overall structure of the header and the hydraulic system.

Fig. 3 is a schematic diagram of the overall structure of the hydraulic system.

Fig. 4 is a partial structural schematic diagram of the hydraulic system.

Fig. 5 is a first schematic diagram of the straw header and the feeding device.

Fig. 6 is a schematic diagram of a straw header and a feeding device.

FIG. 7 is a schematic diagram of a feeding auger structure.

Fig. 8 is a schematic view of the upper saw roll.

FIG. 9 is a schematic view of an upper sliver roller

Fig. 10 is a schematic view of a lower elongated rib roller.

FIG. 11 is a schematic view of a lower elongated smooth roll.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1-2, according to an embodiment of the present invention, a corn harvester with a hydraulic traveling system is provided, which includes a hydraulic traveling system, an engine 2, a hay cutter 3, a feeding device 4, and a straw cutting table 5. The straw cutting table 5 is connected with the feeding device 4, the feeding device 4 is connected with the hay cutter 3, and the hay cutter 3 is installed at the front end of the vehicle body. The output wheel of the engine 2 is in transmission connection with the hay cutter input wheel 3.1 of the hay cutter 3 through a transmission system with more than one level. The hydraulic walking system is used for driving walking wheels.

As shown in fig. 2-4, the hydraulic traveling system includes a hydraulic drive system and a hydraulic control system, and the hydraulic drive system includes a hydraulic pump 1.1, a hydraulic motor 1.2, a transmission 1.3, a wheel reduction gear 1.4, a hydraulic oil radiator 1.5, and a hydraulic oil tank 1.6. The engine 2 is provided with a transfer case, the hydraulic pump 1.1 is installed on the transfer case, and the hydraulic pump 1.1 is driven by the transfer case.

The hydraulic pump 1.1 is provided with a hydraulic pump oil pumping port 1.111, the hydraulic pump oil pumping port 1.111 is connected with a hydraulic oil tank oil outlet 1.61 through a hydraulic oil pipe, so that hydraulic oil in the hydraulic oil tank 1.6 is sucked into the hydraulic pump 1.1, and the transfer case drives the hydraulic pump 1.1 to work to raise the pressure of the hydraulic oil. Preferably, in order to prevent the hydraulic driving system and the hydraulic control system from being blocked by impurities in the hydraulic oil, a low-pressure hydraulic oil filter 1.7 is arranged on a hydraulic oil pipe between the hydraulic pump pumping port 1.111 and the first hydraulic oil tank outlet 1.61, and the impurities in the hydraulic oil are removed through the low-pressure hydraulic oil filter 1.7, so that the hydraulic oil entering the hydraulic pump 1.1 is cleaner, an oil path is prevented from being blocked, and the failure rate of the hydraulic traveling system is reduced.

The hydraulic pump 1.1 is provided with a hydraulic pump port A1.112 and a hydraulic pump port B1.113. The hydraulic motor 1.2 is provided with a motor oil port A1.21 and a motor oil port B1.22. The hydraulic pump port A1.112 is connected with the motor port A1.21 through a hydraulic oil pipe, and the hydraulic pump port B1.113 is connected with the motor port B1.22 through a hydraulic oil pipe. High-pressure hydraulic oil is pumped into the motor oil port A1.21 or the motor oil port B1.22 through the hydraulic pump 1.1, so that the hydraulic motor 1.2 rotates forwards or backwards, and the travelling wheel is driven to advance or retreat through the gearbox 1.3 and the wheel reduction gear 1.4.

The hydraulic pump 1.1 is further provided with a hydraulic pump oil return opening 1.115, the hydraulic motor 1.2 is provided with a motor pressure relief opening 1.23, and the motor pressure relief opening 1.23 is connected with the hydraulic pump oil return opening 1.115 through a hydraulic oil pipe. The hydraulic oil accumulated in the casing of the hydraulic motor 1.2 is discharged from the motor pressure relief opening 1.23 in time, flows back to the hydraulic pump oil return opening 1.115 of the hydraulic pump 1.1 through the hydraulic oil pipe, and enters the hydraulic pump 1.1 for backflow use.

The hydraulic pump 1.1 is further provided with a hydraulic pump outlet C1.114, the hydraulic oil radiator 1.5 is provided with a radiator oil inlet 1.51 and a radiator oil outlet 1.52, and the hydraulic oil tank 1.6 is further provided with a hydraulic oil tank oil return port 1.63. The hydraulic pump outlet C1.114 is connected with the radiator oil inlet 1.51 through a hydraulic oil pipe, and the radiator oil outlet 1.52 is connected with a hydraulic oil tank oil return port 1.63 arranged on the hydraulic oil tank 1.6 through a hydraulic pipeline. When the temperature of the hydraulic oil is too high, part of the hydraulic oil enters the hydraulic oil radiator 1.5 from the hydraulic pump outlet C1.114 through the hydraulic oil pipe, and after the temperature of the hydraulic oil is reduced, the lower-temperature hydraulic oil flows back to the hydraulic oil tank 1.6 through the hydraulic oil pipe, so that the temperature of the hydraulic oil is reduced. Or, when the temperature of the hydraulic oil is too high, the hydraulic control system controls the hydraulic pump 1.1 to discharge all the hydraulic oil which flows back to the hydraulic pump 1.1 from the hydraulic pump outlet C1.114, the hydraulic oil enters the hydraulic oil radiator 1.5 through the hydraulic oil pipe, after the temperature of the hydraulic oil is reduced, the hydraulic oil with lower temperature flows back to the hydraulic oil tank 1.6 through the hydraulic oil pipe, so that the temperature of the hydraulic oil is reduced, and the control of the temperature of the hydraulic oil is rapidly realized.

As shown in fig. 3-4, a motor mounting seat 1.31 is provided on the transmission case 1.3, the hydraulic motor 1.2 is mounted on the motor mounting seat 1.31, and the hydraulic motor 1.2 is used for driving the transmission case 1.3. And a gearbox output shaft 1.32 is arranged on the gearbox 1.3. The wheel reduction gear 1.4 is provided with wheel reduction gear input shaft 1.41 and walking wheel, gearbox output shaft 1.32 is connected with wheel reduction gear input shaft 1.41 transmission through the transmission shaft, the walking wheel is installed on wheel reduction gear 1.4.

Preferably, the hub reduction gear 1.4 is further provided with a brake disc 1.42 and a brake disc mechanism 1.43, and the brake disc is arranged on the reduction gear input shaft 1.41. The brake pad mechanism 1.43 is connected with the hydraulic pump 1.1 through a hydraulic oil pipe. The hydraulic oil delivered by the hydraulic pump 1.1 provides the clamping pressure for the brake disc mechanism 1.43.

As shown in fig. 3, the hydraulic control system includes a gear pump 1.8, a control oil filter 1.9, a multi-way valve 1.10, a tank return filter 1.11, a steering cylinder 1.12, and a multi-way control valve (located in a cab, not shown). The hydraulic oil tank 1.6 is further provided with a second hydraulic oil tank oil outlet 1.62, the gear pump 1.8 is provided with a gear pump oil inlet 1.81, and the second hydraulic oil tank oil outlet 1.62 is connected with the gear pump oil inlet 1.81 through a hydraulic oil pipe. And the gear pump 1.8 is also provided with a gear pump oil outlet I1.82 and a gear pump oil outlet II 1.83. The first gear pump oil outlet 1.82 is connected with an inlet of the multi-way control valve through a hydraulic oil pipe, and the second gear pump oil outlet 1.83 is connected with an inlet of the multi-way valve 1.10 through a hydraulic oil pipe.

Preferably, a control oil filter 1.9 is arranged on a hydraulic oil pipe between the second gear pump oil outlet 1.83 and the multi-way valve 1.10, and impurities of hydraulic oil in a control pipeline are removed through the control oil filter 1.9, so that the control pipeline is prevented from being blocked. The gear pump 1.8 is installed on the engine 2, and the transfer case of the engine drives the gear pump 1.8 to work.

The outlet of the multi-way valve 1.10 is connected with a Y-shaped branched oil pipe, one branched pipe of the Y-shaped branched oil pipe is connected with the outlet of the multi-way control valve, and the other branched pipe is connected with an oil tank oil return port filter 1.11. The oil tank oil return port filter 1.11 is arranged on the hydraulic oil tank 1.6. The Y-shaped branched oil pipe is arranged to return hydraulic oil of the multi-way control valve to a hydraulic oil tank on one hand; on the other hand, the hydraulic oil in the other branch pipe flows back to the hydraulic oil tank 1.6 after passing through the oil tank oil return port filter 1.11, so that the pressure build-up is prevented, and the risk of pipeline breakage is reduced. The outlet end of the multi-way control valve is connected with a steering oil cylinder 1.12 through a hydraulic oil pipe, and the direction of the traveling wheels is adjusted through the steering oil cylinder 1.12.

The hydraulic pump 1.1 is also provided with a brake hydraulic oil outlet (not shown), and the brake hydraulic oil outlet is connected with the brake disc mechanism 1.43 through a hydraulic oil pipe to provide power for the brake disc mechanism 1.43 so as to realize braking.

The corn harvester with the hydraulic traveling system provided by the invention specifically works in the following processes:

the engine 2 drives the gear pump 1.8 and the hydraulic pump 1.1 to work. Firstly, a gear pump 1.8 extracts hydraulic oil from a hydraulic oil tank 1.6, and high-pressure hydraulic oil is conveyed to a multi-way control valve through an oil outlet I1.82 of the gear pump; meanwhile, high-pressure hydraulic oil is conveyed to the multi-way valve 1.10 through an oil outlet II 1.83 of the gear pump, and then the hydraulic oil flows back to the hydraulic oil tank 1.6 through a branch pipe in the Y-shaped branch oil pipe. Secondly, high-pressure hydraulic oil is led into the steering oil cylinder 1.12 through a multi-way control valve which is controlled manually so as to drive the steering oil cylinder 1.12 to drive the walking theory to change the walking direction.

The hydraulic pump 1.1 extracts hydraulic oil from the hydraulic oil tank 1.6, and pumps high-pressure hydraulic oil into the motor oil port a1.21 or the motor oil port B1.22 through the hydraulic pump oil port a1.112 or the hydraulic pump oil port B1.113 to drive the hydraulic motor 1.2 to drive the transmission case 1.3 to work, the transmission case 1.3 drives the wheel reduction gear 1.4 to work through the transmission shaft, and the wheel reduction gear 1.4 drives the traveling wheel to advance or retreat, so that traveling is realized.

The hydraulic pump 1.1 conveys a part of hydraulic oil to the hydraulic oil radiator 1.5 through the hydraulic pump outlet C1.114 for heat dissipation and cooling, and the cooled hydraulic oil flows back to the hydraulic oil tank from the radiator oil outlet 1.52, so that the real-time heat dissipation of the hydraulic oil is realized, and the over-high temperature of the hydraulic oil is prevented.

The hydraulic pump 1.1 supplies high-pressure hydraulic oil to the brake disc mechanism 1.43 through the brake hydraulic oil outlet, and then drives the brake disc mechanism 1.43 to brake the brake disc 1.42.

As shown in fig. 5-11, the corn harvester with the hydraulic traveling system further provided by the invention further comprises a hay cutter 3, a feeding device 4 and a straw cutting table 5. The hay cutter 3 is arranged at the front end of the vehicle body, the feeding device 4 is arranged at the front end of the hay cutter 3, and the straw cutting table 5 is arranged at the front end of the feeding device 4.

As shown in fig. 5-6, the straw header 5 includes a header main shaft 5.1, and a header main shaft input wheel 5.11, a header main shaft output wheel one 5.12, and a header main shaft output wheel two 5.13 are disposed on the header main shaft 5.1.

The straw header 5 still includes feeding auger 5.2, feeding auger 5.2 is the syllogic, and two sections set up helical blade 5.22 about, straw driving lever 5.23 that the interlude set up for the activity. The one end of feeding auger 5.2 is provided with auger input wheel 5.21, auger input sprocket 5.21 is connected with header main shaft output wheel 5.12 transmission through chain or drive belt.

Straw header 5 still includes swing case 5.3, decides cutting knife 5.5 and moves cutting knife 5.4, be provided with swing case input wheel 5.31 on the swing case 5.3, the swing case input wheel passes through drive belt or chain and header main shaft output wheel 5.13 transmission connection. The swing box 5.3 is in transmission connection with the movable cutting knife 5.4, and the movable cutting knife 5.4 is driven to reciprocate relative to the fixed cutting knife 5.5 through the swing box 5.3, so that the corn stalks are cut off from the bottom.

The feeding device 4 comprises a feeding main shaft 4.1, and a feeding main shaft input wheel 4.11, a feeding main shaft output wheel 4.12 and a feeding main shaft output gear 4.13 are arranged on the feeding main shaft 4.1. Feeding main shaft 4.1 is connected with jackshaft 4.10 transmission through universal joint 4.9, be provided with jackshaft output wheel 4.101 on the jackshaft 4.10, jackshaft output wheel 4.101 is connected through drive belt or chain and the header main shaft input wheel 5.11 transmission that sets up on the header main shaft 5.1.

As shown in fig. 5-11, the feeding device 4 further comprises a front rib roller 4.3, a rear feeding smooth roller 4.2, a front sawtooth knife roller 4.8 and a rear long knife roller 4.7. Feeding rib rods 4.32 are evenly distributed on the circumference of the side wall of the front rib roller 4.3, and a front rib roller input gear 4.31 is arranged at one end of the front rib roller. One end of the post-feeding smooth roller 4.2 is provided with a post-feeding smooth roller input gear 4.21. A plurality of sawtooth blades 4.82 are evenly distributed on the circumference of the side wall of the front sawtooth knife roller 4.8, and a front sawtooth knife roller input wheel 4.81 is arranged at one end of the front sawtooth knife roller. The circumference of the side wall of the rear long knife roll 4.7 is evenly provided with long blades 4.72, and one end of the rear long knife roll is provided with a rear long knife roll input wheel 4.71.

And a feeding main shaft output gear 4.13 on the feeding main shaft 4.1 is simultaneously meshed with a front convex rib roller input gear 4.31 and a rear feeding smooth roller input gear 4.21, so that a front convex rib roller 4.3 and a rear feeding smooth roller 4.2 are simultaneously driven to rotate.

The feeding device 4 further comprises a first short shaft 4.4 and a second short shaft 4.6, the first short shaft 4.4 is connected with the second short shaft 4.6 through a universal coupling 4.5, a first short shaft input wheel 4.41 is arranged on the first short shaft 4.4, a second short shaft output wheel 4.61 is arranged on the second short shaft 4.6, and the second short shaft output wheel 4.61 is in transmission connection with a front sawtooth knife roller input wheel 4.81 and a rear long knife roller input wheel 4.71 through a transmission belt or a chain. The feeding main shaft output wheel 4.12 is in transmission connection with the short shaft one input wheel 4.41 through a transmission belt or a chain, so that the short shaft one 4.4, the universal coupling two 4.5, the short shaft two 4.6 and the short shaft two output wheel 4.61 are sequentially driven to rotate, and the short shaft two output wheel 4.61 simultaneously drives the front sawtooth knife roller input wheel 4.81 and the rear long knife roller input wheel 4.71 to rotate so as to drive the front sawtooth knife roller 4.8 and the rear long knife roller 4.7 to simultaneously rotate.

As shown in fig. 5-6, a hay cutter input wheel 3.1 and a hay cutter output wheel 3.2 are arranged on the hay cutter shaft of the hay cutter 3. The hay cutter input wheel 3.1 is in transmission connection with an engine output wheel 2.1 of the engine 2 through a transmission system. The hay cutter output wheel 3.2 is in transmission connection with a feeding main shaft input wheel 4.11 on a feeding main shaft 4.1 through a transmission belt or a chain.

The feeding device 4 and the straw cutting table 5 provided by the invention have the specific working processes that: firstly, the swing box 5.3 drives the movable cutting knife 5.4 to reciprocate left and right relative to the fixed cutting knife, and then the corn stalks are cut off from the bottom. The cut corn stalks move backwards under the action of a feeding auger 5.2 to enter between a front convex rib roller 4.3 and a rear feeding smooth roller 4.2 on the lower layer in a feeding device 4 and a front sawtooth knife roller 4.8 and a rear long knife roller 4.7 on the upper layer, the front convex rib roller 4.3 and the rear feeding smooth roller 4.2 on the lower layer and the front sawtooth knife roller 4.8 and the rear long knife roller 4.7 on the upper layer are conveyed backwards to a hay cutter 3 under the action of the front convex rib roller 4.3 and the rear feeding smooth roller 4.2 on the lower layer, the corn stalks are crushed by the hay cutter in the hay cutter 3, and the crushed stalks enter a straw bin under the action of a secondary throwing system to finish the collection of the corn stalks.

The feeding device 4 and the straw cutting table 5 provided by the invention have the following specific transmission processes: an engine output wheel 2.1 of the engine 2 drives a hay cutter input wheel 3.1 on a hay cutter shaft to rotate and a hay cutter output wheel 3.2 to rotate through a transmission system, and the hay cutter output wheel 3.2 drives a feeding main shaft input wheel 4.11 on a feeding main shaft 4.1, a feeding main shaft output wheel 4.12 and a feeding main shaft output gear 4.13 to rotate through a conveying belt or a chain. Wherein, the feeding main shaft output gear 4.13 drives the meshed front convex rib roller input gear 4.31 and the meshed rear feeding smooth roller input gear 4.21 to rotate so as to drive the front convex rib roller 4.3 and the rear feeding smooth roller 4.2 to rotate. The feeding main shaft output wheel 4.12 drives the short shaft one input wheel 4.41, the short shaft one 4.4, the universal coupling two 4.5, the short shaft two 4.6 and the short shaft two output wheel 4.61 to rotate in sequence through a conveying belt or a chain, and the short shaft two output wheel 4.61 drives the front sawtooth knife roller input wheel 4.81 and the rear long knife roller input wheel 4.71 to rotate through the conveying belt or the chain so as to drive the front sawtooth knife roller 4.8 and the rear long knife roller 4.7 to rotate.

The feeding main shaft 4.1 drives an output wheel 4.101 of an intermediate shaft, the intermediate shaft 4.10, an input wheel 5.11 of a header main shaft and the header main shaft 5.1 in sequence through a universal coupling 4.9. The header main shaft 5.1 drives the header main shaft output wheel I5.12 and the header main shaft output wheel II 5.13 to rotate. The header main shaft output wheel I5.12 drives the packing auger input wheel 5.21 to rotate through a transmission belt or a chain so as to drive the feeding packing auger 5.2 to rotate. The header main shaft output wheel II 5.13 drives the swing box input wheel 5.31 to rotate through a transmission belt or a chain, and then drives the movable cutting knife 5.4 to reciprocate relative to the fixed cutting knife 5.5 through the swing box 5.3.

The corn harvester who possesses hydraulic traveling system that provides rotates through setting up hydraulic traveling system driven wheel, and then has satisfied the demand that corn harvester walked, braked, and its simple structure, pipeline arrange in a flexible way, realize the overall arrangement of complicated circuit easily, and the high pressure of control oil circuit adopts solitary gear pump moreover, and control pressure is accurate sensitive, and brake hydraulic pressure directly comes from variable pump, simple structure. The feeding device is provided with an upper layer of feeding rollers and a lower layer of feeding rollers, so that the corn stalks are conveyed to the hay cutter more quickly and effectively, and the feeding efficiency is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.