CN206575843U - A kind of hydraulic-driven rape combined harvester - Google Patents

Abstract

The utility model discloses a hydraulically driven rapeseed combine harvester, which comprises a crawler-type chassis traveling device and a header arranged at the front end of the crawler-type chassis traveling device. The diesel engine at the rear of the cabin and the travel gear box on the side of the cab, the diesel engine provides power to the travel gear box through belt transmission; it also includes the longitudinal axial flow with forced feeding device connected to the outlet at the rear end of the header. The threshing and separation device and the cyclone separation and cleaning system installed at the rear end of the crawler chassis walking device; the segmented header is adopted, so that the height of the header can be adjusted according to actual needs, which is more suitable for the fertile fields and slope planting environments in the middle and lower reaches of the Yangtze River ; And it adopts full hydraulic drive, which is easy to operate; it adopts a longitudinal axial flow threshing and separation device with a forced feeding device to replace the traditional chain rake conveyor, shortening the stalk flow distance.

Description

A hydraulically driven rapeseed combine harvester

technical field

The utility model belongs to the technical field of harvesting in agricultural machinery, in particular to a hydraulically driven rapeseed combine harvester.

Background technique

Rapeseed is one of the most important oil crops in the world. It is currently the second largest edible vegetable oil and oil meal raw material in the world. It is widely used in feed, chemical, energy and other fields, and occupies a very important position in the global trade of oil products. my country is one of the main rapeseed producing areas in the world, but the production of rapeseed in my country is relatively backward, which is mainly reflected in the backwardness of production means, resulting in high production costs and low benefits, which is not conducive to improving the enthusiasm of farmers and restricting the development of rapeseed industry in my country. Seeds and rapeseed oil are generally net imports, and their international competitiveness is relatively weak. Therefore, accelerating the mechanization of rapeseed production is a necessary way to improve the economic benefits of rapeseed and increase production and income.

The mechanized harvesting of rapeseed is a key part of rapeseed mechanization, and it also directly affects the timely sowing and planting of the next crop. Mechanical harvesting methods are mainly divided into combined harvesting and segmented harvesting. Combined harvesting is a process that completes cutting, threshing, separation, and cleaning operations at one time. Harvesting method, from the perspective of farmers, combined harvesting has the advantages of saving time, worry and effort; from a long-term point of view, combined harvesting is appropriate in the south where there is more rain, small fields, and concentrated harvesting time. Short harvest period and inconsistent maturity of rapeseed, resulting in excessive loss rate, are the main factors restricting the development of combined rapeseed harvesting. In recent years, under the influence of the rapid development of wheat and rice-based harvesting mechanization, a dual-purpose rapeseed combine harvester has appeared, but its functional form, technological process and key technologies are almost all derived from the relatively mature rice-wheat combined harvester. Machines, most of which are positioned as a multi-purpose machine, have poor adaptability to rapeseed harvesting. Therefore, the development of a special combine harvester for rapeseed is one of the important measures to promote the mechanized harvesting of rapeseed.

The structure of the traditional rapeseed combine harvester is complicated, and the chain rake conveyor is often used between the header and the threshing and separating device; the cleaning device mostly uses a fan and a reciprocating vibrating screen, and the vibration of the whole machine is large; most of the working parts use mechanical transmission, and the transmission is complicated .

Contents of the invention

The purpose of this utility model is to provide a hydraulically driven rapeseed combine harvester suitable for the fertile fields and sloping fields in the middle and lower reaches of the Yangtze River in view of the deficiencies of the above-mentioned technologies.

In order to achieve the above purpose, the hydraulically driven rapeseed combine harvester designed by the utility model includes a crawler-type chassis traveling device and a cutting platform arranged at the front end of the crawler-type chassis traveling device. The cab, the diesel engine at the rear of the cab and the travel gearbox at one side of the cab, the diesel engine provides power to the travel gearbox through belt transmission; it also includes a belt connected to the outlet at the rear end of the header The longitudinal axial flow threshing and separation device of the forced feeding device and the cyclone separation and cleaning system installed at the rear end of the crawler chassis travel device;

The header includes a header fixed bracket fixed on the front end of the crawler-type chassis traveling device, a header movable bracket hinged at the front end of the header fixed bracket through a hinge shaft, a feeding drum installed inside the header fixed bracket, and hinged on the header. The reel brackets on both sides of the table fixed bracket, the reel fixed between the two sides of the reel brackets, the reel installed on both sides of the header fixed bracket and controlling the rotation of the reel around the hinge point of the reel bracket Helun support hydraulic cylinder, horizontal cutting knife assembly installed at the front end of the header movable support, vertical cutting knife assembly installed at the end of one side of the header movable support and connected to the side of the horizontal cutting knife assembly through the connecting rod assembly and installation On both sides of the movable bracket of the header, the side hydraulic cylinder that controls the movable bracket of the header to swing up and down with the hinge point of the hinge shaft as the center, and the hydraulic motor of the cutter assembly that drives the movement of the horizontal cutter assembly and the feeder that drives the rotation of the feeding drum The hydraulic motor of the feeding drum drives the reel to rotate around the central axis of the reel through the intermediate transition pulley;

Among them: the hydraulic motor of the cutter assembly and the hydraulic motor of the feeding drum are connected to the hydraulic oil tank through a load-sensitive pump located behind the diesel engine, and the reel support hydraulic cylinder and side hydraulic cylinder are powered by the gear pump of the diesel engine; and The hydraulic motor of the cutter assembly and the hydraulic motor of the feeding drum are connected in series with a solenoid valve in the start-stop switch.

Further, the longitudinal axial flow threshing and separation device with a forced feeding device includes a forced feeding wheel, a threshing drum and an auger, a hydraulic motor for driving the forced feeding wheel to rotate, and a hydraulic motor for driving the detachment drum to rotate. The hydraulic motor of the detachment drum and the auger hydraulic motor driving the rotation of the auger; the hydraulic motor of the forced feeding wheel, the hydraulic motor of the detachment drum and the hydraulic motor of the auger all pass through the load sensitive pump located behind the diesel engine It is connected with the hydraulic oil tank, and the forced feeding wheel hydraulic motor is connected with the two-way solenoid valve in the start-stop switch, the threshing drum hydraulic motor is connected with the three-way solenoid valve in the start-stop switch, and the screw auger hydraulic pressure The motor is connected to the four-way solenoid valve in the start-stop switch.

Further, the cyclone separation and cleaning system includes a hoisting machine located below the outlet of the conveying auger of the longitudinal axial flow threshing separation device with a forced feeding device, a cyclone separating cylinder with a material inlet connected to the outlet of the hoisting machine, The grain lifting auger located under the cyclone separation cylinder, the centrifugal fan located above the grain tank behind the diesel engine, the suction pipe connecting the suction port of the cyclone separation cylinder and the inlet of the centrifugal fan, and the hoisting machine hydraulic motor that drives the hoisting machine to rotate 1. The grain lifting auger hydraulic motor that drives the grain lifting auger to rotate and the centrifugal fan hydraulic motor that drives the centrifugal fan to rotate; the hydraulic motor of the throwing machine and the grain lifting auger hydraulic motor are all connected by a load sensitive pump located at the rear of the diesel engine. The hydraulic oil tank is connected, the hydraulic motor of the centrifugal fan is powered by the gear pump of the diesel engine, and the hydraulic motor of the throwing machine and the hydraulic motor of the grain lifting auger are connected in series with the four-way solenoid valve in the start-stop switch.

Further, the hydraulic motor of the cutter assembly and the hydraulic motor of the feeding drum are connected in series with one speed regulating valve in the speed regulating switch.

Further, the forced feeding wheel hydraulic motor is connected with the two-way speed control valve in the speed control switch, the threshing drum hydraulic motor is connected with the three-way speed control valve in the speed control switch, and the screw auger hydraulic motor It is connected with the four-way speed control valve in the speed control switch.

Further, the hydraulic motor of the throwing machine and the hydraulic motor of the grain lifting auger are connected in series with the four-way speed regulating valve in the speed regulating switch.

Further, a radiator connected to the hydraulic oil tank is provided outside the hydraulic oil tank.

Further, the hoisting machine includes a hoisting machine shell, a feeding port connected to the hoisting machine shell through bolts, a hoisting machine impeller and a transmission shaft, and the top of the hoisting machine shell is a discharge port.

Further, the cyclone separation cylinder includes an upper frustum with a miscellaneous suction port on the top, a middle cylinder with an inlet on one side, and a lower frustum with a grain outlet at the lower end. The upper frustum, middle cylinder and the lower conical frustum are connected by flanges along the same central axis.

Compared with the prior art, the utility model has the following advantages: the hydraulically driven rapeseed combine harvester of the utility model adopts a segmented header, so that the height of the header can be adjusted according to actual needs, and is more suitable for fertile fields in the middle and lower reaches of the Yangtze River , Slope planting environment; and adopts full hydraulic drive, easy to operate, simplifies the complexity of traditional mechanical transmission structure and operation, makes the overall structure of hydraulically driven rapeseed combine simple and compact; adopts longitudinal axis with forced feeding device The flow threshing and separation device replaces the traditional chain rake conveyor to shorten the stalk flow path; the cyclone separation and cleaning system is used to simplify the structure and reduce the vibration of the whole machine.

Description of drawings

Fig. 1 is the structure schematic diagram of the utility model hydraulically driven rapeseed combine harvester;

Fig. 2 is the structural representation of crawler chassis walking device in Fig. 1;

Fig. 3 is the structural representation of header in Fig. 1;

Fig. 4 is the structural representation of the vertical axial flow threshing and separating device with forced feeding device in Fig. 1;

Fig. 5 is the structural representation of cyclone separation cleaning system in Fig. 1;

Fig. 6 is a schematic structural diagram of the hydraulic drive in Fig. 1 .

In the figure: crawler chassis traveling device 1 (among them: cab 1.1, diesel engine 1.2, travel gear box 1.3, chassis 1.4), header 2 [among them: header fixed bracket 2.1 (among them: intermediate transition pulley 2.11, feeding Entering drum 2.12, reel support 2.13, reel support hydraulic cylinder 2.14, cutter 2.15), header movable support 2.2 (of which: hinged shaft 2.21, horizontal cutter assembly 2.22, vertical cutter assembly 2.23, hydraulic motor Bracket 2.24, connecting rod assembly 2.25, side hydraulic cylinder 2.26), reel 2.3,], longitudinal axial flow threshing separation device 3 with forced feeding device (wherein: forced feeding wheel 3.1, threshing drum 3.2, screen 3.3, spiral auger 3.4), cyclone separation and cleaning system 4 [throwing machine 4.1 (including: feeding inlet 4.11, hoisting machine shell 4.12, hoisting machine impeller 4.13, transmission shaft 4.14, discharge port 4.15), cyclone separation Cylinder 4.2 (including: upper cone 4.21, middle cylinder 4.22, lower cone 4.23, observation port 4.24), grain lifting auger 4.3, grain tank 4.4, centrifugal fan 4.5, miscellaneous suction pipe 4.6], hydraulic oil tank 5 (of which : cutter hydraulic motor 5.1, feeding drum hydraulic motor 5.2, forced feeding wheel hydraulic motor 5.3, threshing drum hydraulic motor 5.4, screw auger hydraulic motor 5.5, throwing machine hydraulic motor 5.6, grain lifting auger hydraulic motor 5.7, Centrifugal fan hydraulic motor 5.8), radiator 6, load sensing pump 7, start-stop switch 8, speed control switch 9.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1, the hydraulically driven rapeseed combine harvester of the present utility model comprises a crawler-type chassis traveling device 1, a header 2 arranged at the front end of the crawler-type chassis traveling device 1, and an outlet connected to the rear end of the header 2. The longitudinal axial flow threshing and separation device 3 with forced feeding device and the cyclone separation and cleaning system 4 arranged at the rear end of crawler chassis traveling device 1, among which: the longitudinal axial flow threshing and separating device with forced feeding device is a Chinese utility model patent The application (publication number 106105581A, publication date 2016-11-16) discloses a longitudinal axial flow threshing and separation device with a forced feeding device, which replaces the traditional chain rake conveyor and shortens the stalk flow path. The specific structure and principle of the longitudinal axial flow threshing and separation device of the forced feeding device will not be repeated here.

As shown in Figure 2, the crawler chassis traveling device includes a chassis 1.4, a cab 1.1 positioned at the front end of the chassis 1.4, a diesel engine 1.2 positioned behind the cab 1.1, and a walking gear box 1.3 positioned at one side of the cab. The diesel engine 1.2 passes through the belt The transmission provides power to the travel gear box 1.3.

As shown in Fig. 3, the header 2 includes a header fixed bracket 2.1 fixed on the front end of the crawler chassis traveling device 1, a header movable bracket 2.2 hinged on the front end of the header fixed bracket 2.1 through a hinge shaft 2.21, and fixed on the header. The feed drum 2.12 inside the support 2.1 is welded to the surface of the feed drum 2.12 and the spirally arranged cutter 2.15 (that is, the cutter 2.15 on the feed drum 2.12 can initially cut the rapeseed), hinged on the header fixed bracket 2.1 The reel support 2.13 on both sides, the reel 2.3 fixed between the reel supports 2.13 on both sides (that is, a reel support 2.13 is hinged on one side of the header fixed support 2.1, and the other reel support 2.13 is hinged on the other side of the header fixed bracket 2.1, one end of the reel 2.3 is installed on the reel bracket 2.13 on one side of the header fixed bracket 2.1, and the other end is installed on the other side of the header fixed bracket 2.1 The reel on the support 2.13), the reel support hydraulic cylinder 2.14 that is installed on both sides of the header fixed support 2.1 (that is, a reel support hydraulic cylinder 2.14 is installed on each side of the header fixed support 2.1 both sides), is installed on the header The horizontal cutter assembly 2.22 at the front end of the movable support 2.2, the vertical cutter assembly 2.23 (and the vertical cutter assembly 2.23 (and the vertical cutter) that are installed on one side end of the header movable support 2.2 and are connected to one side of the horizontal cutter assembly 2.22 by the connecting rod assembly 2.25 Assembly 2.23 is used to cut rape stalks and branches) and is installed on both side hydraulic cylinders 2.26 of the header movable support 2.2 (that is, each side of the header movable support 2.2 sides is respectively equipped with a side hydraulic cylinder 2.26), and the drive The horizontal cutting knife assembly 2.22 moves the cutting knife assembly hydraulic motor 5.1 and the feeding drum hydraulic motor 5.2 that drives the feeding drum 2.12 to rotate, and the feeding drum hydraulic motor 5.2 drives the reel 2.3 around the reel through the intermediate transition pulley 2.16 The central axis of the wheel rotates, and at the same time, the telescopic control of the two reel support hydraulic cylinders 2.14 rotates the reel 2.3 around the hinge point of the reel support 2.13, and the telescopic control of the header movable bracket 2.2 of the two side hydraulic cylinders 2.26 uses the hinged shaft The hinge point of 2.21 is that the center of the circle swings up and down. Among them, the hydraulic motor bracket 2.24 is welded on one side of the movable bracket 2.2 of the header, which is used to install the hydraulic motor 5.1 of the cutter assembly, and the hydraulic motor 5.1 of the cutter assembly drives the horizontal cutter assembly 2.22. The connecting rod assembly 2.25 on one side of the horizontal cutter assembly 2.22 further drives the vertical cutter assembly 2.23. The invention adopts segmented headers, so that the height of the headers can be adjusted according to actual needs, and is more suitable for the environment of fertile fields and sloping fields in the middle and lower reaches of the Yangtze River.

As shown in Fig. 4, the longitudinal axial flow threshing separation device 3 with a forced feeding device includes a forced feeding wheel 3.1, a threshing drum 3.2 rotating along the longitudinal axis, a screen 3.3 located below the threshing drum 3.2 and a screen located below the screen 3.3. The screw auger 3.4, and the forced feed wheel hydraulic motor 5.3 that drives the forced feed wheel 3.1 to rotate, the screw auger hydraulic motor 5.4 that drives the rotation of the drum 3.2 and the screw auger hydraulic motor 5.5 that drives the screw auger 3.4 to rotate.

As shown in Figure 5, the cyclone separation and cleaning system 4 includes a hoisting machine 4.1 located below the outlet of the longitudinal axial flow threshing and separation device 3 with a forced feeding device 3.4 conveying auger 3.4. The cyclone separation cylinder 4.2 connected to the feed opening, the grain lifting auger 4.3 located below the cyclone separation cylinder 4.2, the centrifugal fan 4.5 located above the grain tank 4.4 behind the diesel engine, and the suction port connecting the miscellaneous suction port of the cyclone separation cylinder 4.2 and the inlet of the centrifugal fan 4.5 Miscellaneous pipeline 4.6, and the hoisting machine hydraulic motor 5.6 that drives hoisting machine 4.1 rotations, the grain hoisting auger hydraulic motor 5.7 that drives grain promotion auger 4.3 rotations and the centrifugal blower hydraulic motor 5.8 that drives centrifugal fan 4.5 rotations. The hoisting machine 4.1 includes the hoisting machine shell 4.12, the feed inlet 4.11 connected to the hoisting machine shell 4.12 by bolts, the hoisting machine impeller 4.13 and the drive shaft 4.14, the top of the hoisting machine shell 4.12 is the discharge port 4.15, and the hoisting machine The machine shell 4.12 is connected with the chassis 1.4 of the crawler chassis running device 5 through bolts, and the hoisting machine impeller 4.13 is connected with the transmission shaft 4.14 and is located in the hoisting machine shell 4.12, and is installed on the chassis frame through the bearing seat; the cyclone separation cylinder 4.2 Including the upper frustum 4.21 with a miscellaneous suction port on the top, the middle cylinder 4.22 with an inlet on one side and the lower frustum 4.23 with a grain outlet at the lower end, the upper frustum 4.21, the middle cylinder 4.22 and the lower frustum 4.23 They are all connected by flanges along the same central axis, and there is an observation port 4.24 on the other side of the middle cylinder 4.22, and the observation port 4.24 is arranged on the opposite side of the material inlet plane.

As shown in Figure 6, cutter assembly hydraulic motor 5.1, feeding drum hydraulic motor 5.2, forced feeding wheel hydraulic motor 5.3, separation drum hydraulic motor 5.4, screw auger hydraulic motor 5.5, throwing machine hydraulic motor 5.6 and grain The lifting auger hydraulic motor 5.7 is connected to the hydraulic oil tank 5 through the load sensing pump 7 located at the rear of the diesel engine, and the load sensing pump 7 provides power to all the above motors, the centrifugal fan hydraulic motor 5.8, and the two reel support hydraulic cylinders 2.14 and the two side hydraulic cylinders 2.26 are powered by the gear pump of the diesel engine; in addition, the hydraulic motor 5.1 of the cutter assembly and the hydraulic motor 5.2 of the feeding drum are connected in series with a solenoid valve in the start-stop switch 8 to force feeding The wheel hydraulic motor 5.3 is connected with the two-way solenoid valve in the start-stop switch 8, the threshing drum hydraulic motor 5.4 is connected with the three-way solenoid valve in the start-stop switch 8, the screw auger hydraulic motor 5.5, the hoist hydraulic motor 5.6 and the grain The lifting auger hydraulic motor 5.7 is connected in series with the four-way solenoid valve in the start-stop switch 8, so that the four-way solenoid valve in the start-stop switch 8 controls the start and stop of the corresponding motor; at the same time, the cutter assembly hydraulic motor 5.1 and The feeding drum hydraulic motor 5.2 is connected in series with the one-way speed regulating valve in the speed regulating switch 9, the forced feeding wheel hydraulic motor 5.3 is also connected with the two-way speed regulating valve in the speed regulating switch 9, and the threshing cylinder hydraulic motor 5.4 is also connected to each other. Connected with the three-way speed control valve in the speed control switch 9, the screw auger hydraulic motor 5.5, the throwing machine hydraulic motor 5.6 and the grain lifting auger hydraulic motor 5.7 are connected in series with the four-way speed control valve in the speed control switch 9 connected, and the speed of the corresponding motor is controlled by the four-way speed regulating valve in the speed regulating switch 9; The utility model all adopts hydraulic drive, and the operation is simple, which simplifies the complexity of the traditional mechanical transmission structure and operation, so that the overall structure of the hydraulically driven rapeseed combine harvester is simple and compact.

During operation, a working part is activated in the cab, and the rapeseed is transferred to the header 2 under the action of the reel 2.3 and fed into the feeding drum 2.12, and is cut into short stems under the action of the feeding drum 2.12 and the cutter 2.15. The stalks are transported out of the header 2 outlet, and enter the threshing and separating device under the action of the forced feeding wheel 3.1. The rapeseed pods are broken by the threshing drum, and the rapeseed and some residues enter the lower screw auger through the screen. 3.4, transported to the cyclone separation and cleaning system 4 hoisting machine 4.1, and the separated short stalks are discharged from the rear of the threshing separation device; the grains and some impurities entering the hoisting machine 4.1 are processed by the high-speed rotation of the hoisting machine impeller The bottom is thrown into the cyclone separation cylinder 4.2; the impeller of the centrifugal fan rotates at high speed and forms a negative pressure airflow field in the cyclone separation cylinder 4.2 along the miscellaneous suction pipe 4.6, and the heavier rapeseeds fall from the grain outlet into the grain lifting auger 4.3, It is lifted into the grain tank 4.4, and the lighter debris rises under the negative pressure airflow and enters the fan and is discharged out of the machine, thereby completing the entire harvesting process.

Claims (9)

1. A hydraulically driven rapeseed combine harvester comprises a crawler-type chassis running device (1) and a header (2) arranged on the front end of the crawler-type chassis running device (1), and the crawler-type chassis running device (1) includes The chassis (1.4), the cab (1.1) at the front end of the chassis (1.4), the diesel engine (1.2) at the rear of the cab (1.1) and the travel gear box (1.3) at the side of the cab (1.1), the The diesel engine (1.2) provides power to the traveling gear box (1.3) through a belt drive; it is characterized in that it also includes a longitudinal axial flow threshing and separation device with a forced feeding device connected to the outlet at the rear end of the header (2) (3) and the cyclone separation and cleaning system (4) arranged at the rear end of the crawler chassis traveling device (1); The header (2) includes a header fixed bracket (2.1) fixed on the front end of the crawler chassis traveling device (1), and a header movable bracket ( 2.2), the feeding roller (2.12) installed inside the header fixing bracket (2.1), the reel bracket (2.13) hinged on both sides of the header fixing bracket (2.1), the reel bracket fixed on both sides The reel (2.3) between (2.13), the reel support hydraulic cylinder installed on both sides of the header fixing bracket (2.1) and controlling the rotation of the reel (2.3) around the hinge point of the reel bracket (2.13) (2.14), the cross cutting knife assembly (2.22) installed at the front end of the header movable support (2.2), installed at the end of one side of the header movable support (2.2) and through the connecting rod assembly (2.25) and the cross cutting knife assembly (2.22) The vertical cutting knife assembly (2.23) connected on one side and installed on both sides of the header movable bracket (2.2) and controlling the header movable bracket (2.2) to swing up and down with the hinge point of the hinge shaft (2.21) as the center of the circle The side hydraulic cylinder (2.26), the cutting knife assembly hydraulic motor (5.1) driving the movement of the transverse cutting knife assembly (2.22) and the feeding drum hydraulic motor (5.2) driving the feeding drum (2.12) to rotate, and the feeding drum The hydraulic motor (5.2) drives the reel (2.3) to rotate around the central axis of the reel through the intermediate transition pulley (2.16); Among them: the cutter assembly hydraulic motor (5.1) and the feeding drum hydraulic motor (5.2) are connected to the hydraulic oil tank (5) through the load sensitive pump (7) located behind the diesel engine (1.2), and the reel supports the hydraulic cylinder (2.14) and the side hydraulic cylinder (2.26) are powered by the gear pump of the diesel engine (1.2); and the hydraulic motor (5.1) of the cutter assembly and the hydraulic motor (5.2) of the feeding drum are connected in series with the start-stop switch (8 ) all the way to the solenoid valve connected. 2. The hydraulically driven rapeseed combine harvester according to claim 1, characterized in that: the longitudinal axial flow threshing and separation device (3) with a forced feeding device includes a forced feeding wheel (3.1), a threshing drum (3.2) And the screw auger (3.4), and the forced feed wheel hydraulic motor (5.3) that drives the forced feed wheel (3.1) to rotate, the detachment drum hydraulic motor (5.4) that drives the detachment drum (3.2) to rotate, and the drive screw auger ( 3.4) Rotating screw auger hydraulic motor (5.5); the forced feeding wheel hydraulic motor (5.3), the detachment drum hydraulic motor (5.4) and the screw auger hydraulic motor (5.5) all pass through the diesel engine The load sensing pump (7) at the rear is connected with the hydraulic oil tank (5), and the forced feeding wheel hydraulic motor (5.3) is connected with the two-way solenoid valve in the start-stop switch (8), and the threshing drum hydraulic motor ( 5.4) It is connected with the three-way solenoid valve in the start-stop switch (8), and the screw auger hydraulic motor (5.5) is connected with the four-way solenoid valve in the start-stop switch (8). 3. The hydraulically driven rapeseed combine harvester according to claim 1, characterized in that: the cyclone separation and cleaning system (4) includes a conveying auger ( 3.4) The hoisting machine (4.1) below the outlet, the cyclone separation cylinder (4.2) connecting the material inlet to the discharge port of the hoisting machine (4.1), the grain lifting auger (4.3) located under the cyclone separation cylinder (4.2) , the centrifugal fan (4.5) located above the grain tank (4.4) behind the diesel engine and the suction pipe (4.6) connecting the suction port of the cyclone separation cylinder (4.2) and the inlet of the centrifugal fan (4.5), and the driving throwing machine (4.1 ) to rotate the lifter hydraulic motor (5.6), to drive the grain lift auger (4.3) to rotate the grain lift auger hydraulic motor (5.7) and to drive the centrifugal fan (4.5) to rotate the centrifugal fan hydraulic motor (5.8); The hydraulic motor (5.6) of the hoisting machine and the hydraulic motor (5.7) of the grain lifting auger are both connected to the hydraulic oil tank (5) through the load sensitive pump (7) located behind the diesel engine (1.2), and the centrifugal fan hydraulic motor (5.8 ) is powered by the gear pump of the diesel engine (1.2), and the hydraulic motor (5.6) of the throwing machine and the hydraulic motor (5.7) of the grain lifting auger are connected in series with the four-way solenoid valve in the start-stop switch (8). 4. The hydraulically driven rapeseed combine harvester according to claim 1, characterized in that: the cutter assembly hydraulic motor (5.1) and the feeding drum hydraulic motor (5.2) are connected in series with the speed regulating switch (9) All the way speed regulating valve is connected. 5. The hydraulically driven rapeseed combine harvester according to claim 2, characterized in that: the forced feeding wheel hydraulic motor (5.3) is connected to the two-way speed regulating valve in the speed regulating switch (9), and the threshing drum The hydraulic motor (5.4) is connected with the three-way speed control valve in the speed control switch (9), and the screw auger hydraulic motor (5.5) is connected with the four-way speed control valve in the speed control switch (9). 6. The hydraulically driven rapeseed combine harvester according to claim 3, characterized in that: the hydraulic motor (5.6) of the throwing machine and the hydraulic motor (5.7) of the grain lifting auger are connected in series with the speed regulating switch (9). The four-way speed control valve is connected. 7. The hydraulically driven rapeseed combine harvester according to claim 1, 2 or 3, characterized in that: a radiator (6) connected to the hydraulic oil tank (5) is provided outside the hydraulic oil tank (5). 8. The hydraulic drive rapeseed combine harvester according to claim 3, characterized in that: the hoisting machine (4.1) comprises a hoisting machine shell (4.12), a feeding port connected to the hoisting machine shell (4.12) by bolts (4.11), the hoisting machine impeller (4.13) and the transmission shaft (4.14), and the top of the hoisting machine shell (4.12) is the discharge port (4.15). 9. The hydraulically driven rapeseed combine harvester according to claim 3, characterized in that: the cyclone separation cylinder (4.2) includes an upper conical frustum (4.21) with a miscellaneous suction port on the top, and a middle circular cone with an inlet on one side. The cylinder (4.22) and the lower frustum (4.23) with a grain outlet at the lower end, the upper frustum (4.21), the middle cylinder (4.22) and the lower frustum (4.23) are all connected by flanges along the same central axis .