Electrically driven hill and hilly land small corn kernel harvester leveling chassis

Abstract

The application discloses a kind of electric drive mountain hilly small corn kernel harvester leveling chassis, to overcome the existing corn harvester in mountain hilly area operation difficult, there is the risk of rollover, vibration is big in operation process, and the problems such as pollution to field environment, it includes four big parts of upper chassis frame assembly, middle chassis frame assembly, lower chassis frame assembly and walking steering assembly.The front and rear direction between upper chassis frame assembly and middle chassis frame assembly is equipped with two hydraulic cylinders, responsible for the left and right longitudinal leveling of harvester body;Between middle chassis frame assembly and lower chassis frame assembly, two hydraulic cylinders are installed in left and right direction, responsible for the front and rear longitudinal leveling of harvester body;Two directions are not interfered with each other.The chassis is driven by electricity, and the harvester drive system is simplified, and the body vibration and pollution to field environment in the operation process of harvester are reduced.These designs are beneficial to improve the adaptability of harvester to mountain hilly field environment, and guarantee the harvesting quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of agricultural machinery corn harvesting technology, more precisely, the present application relates to a kind of electric drive mountainous small corn kernel harvester leveling chassis. BACKGROUND

[0002] Corn mechanized harvesting is an important part of the whole process of corn mechanization, but the proportion of hilly area is large, resulting in a considerable proportion of farmland in hilly and mountainous areas and other harsh environments. Today, there are few corn kernel harvesters with body leveling function developed for farmland in hilly and mountainous areas on the domestic market, and foreign mountain harvesters are mostly large machines, which are not suitable for small plots in domestic hilly and mountainous areas. In addition, the existing corn harvesters basically use internal combustion engine to provide power, which not only pollutes the farmland environment but also causes the vibration of internal combustion engine to reduce the working quality of the harvester. Therefore, it is of great significance to invent an electric drive mountainous small corn kernel harvester leveling chassis. SUMMARY

[0003] The technical problem to be solved by the present application is that the existing technology has problems such as difficulty in working in hilly and mountainous fields, poor working quality and easy to roll over during working. An electric drive mountainous small corn kernel harvester leveling chassis is provided.

[0004] An electric drive mountainous small corn kernel harvester leveling chassis, which comprises an upper chassis frame assembly, a middle chassis frame assembly, a lower chassis frame assembly and a walking and steering assembly.

[0005] The upper chassis frame assembly is located at the uppermost end of the entire harvester chassis, used for installing header, cab, threshing and cleaning device, grain bin and other parts; the middle chassis frame assembly is located below the upper chassis frame assembly and above the lower chassis frame assembly, used for connecting the lower part of the upper chassis frame assembly and the upper part of the lower chassis frame assembly, and cooperating with the lower part of the upper chassis frame assembly and the upper part of the lower chassis frame assembly to complete the leveling work of the harvester chassis, connected with the front plate spring in the front part of the walking and steering assembly; the lower chassis frame assembly is located below the middle chassis frame assembly, connected by pin shaft hinge, and connected with the rear plate spring in the rear part of the walking and steering assembly; the walking and steering assembly is located at the lowermost end of the entire harvester chassis, divided into front part and rear part, responsible for the driving and steering of the entire harvester.

[0006] The main body of the upper chassis frame assembly is welded by rectangular section steel pipe, including base frame, front frame, rear frame, battery, power motor, front mounting bracket, mudguard, front ladder, rear ladder, upper rear mounting seat, upper front mounting seat, front connecting hole and rear connecting hole;

[0007] The base frame is welded by rectangular section steel pipes, and is located at the lowermost position of the whole upper chassis frame assembly, and is the base of the whole upper chassis frame assembly, and the front frame and the rear frame are welded on the base frame;

[0008] The front frame is welded by rectangular section steel pipes, and is located at the front end of the whole upper chassis frame assembly, and is installed on the base frame by welding, and is wider than the base frame;

[0009] The rear frame is welded by rectangular section steel pipes, and is located at the rear end of the whole upper chassis frame assembly and the rear end of the front frame, and is installed on the base frame by welding, and is wider than the base frame;

[0010] The battery is the power source of the whole harvester, and is installed at the front end of the inside of the front frame;

[0011] The power motor is fixed on the rear end of the inside of the front frame by bolts, and the input end is connected with the battery by wires, and the output power is used to drive the working part above the chassis of the harvester to perform harvesting, threshing and cleaning work;

[0012] The front mounting frame is welded by rectangular section steel pipes and steel plates, and is installed vertically on the front end of the front frame by welding, and the connecting plate for hanging the header elevator and other working parts is welded on the front mounting frame;

[0013] The fender has four, which are made of 2mm thick steel plates by twice bending, two of which are symmetrically installed on the front frame by welding, and the other two are symmetrically installed on the rear frame by welding, and the four fenders are arranged above the four wheels;

[0014] The front ladder is welded by rectangular section steel pipes, and the upper end is installed on the left front part of the front frame by welding, and the front end is welded on the side of the front mounting frame by a rectangular section steel pipe;

[0015] The rear ladder is welded by rectangular section steel pipes, and has the same shape as the front ladder, and the upper end is installed on the left rear part of the front frame by welding;

[0016] The upper rear mounting seat is composed of two steel sheets with a diameter of 25mm round holes, and is installed on the side of the steel pipe on the right side of the inside of the rear frame by welding, and is used to install the transverse rear oil cylinder;

[0017] The upper front mounting seat has the same shape and size as the upper rear mounting seat, and is installed on the right side of the inside of the base frame by welding, and is used to install the transverse front oil cylinder;

[0018] The front connecting hole is a circular through hole with a diameter of 60mm, which is located at the middle position of the frontmost end of the base frame, and is used to connect the front swing plate by a pin shaft;

[0019] The rear connecting hole is a circular through hole with a diameter of 40 mm, which is located at the middle of the rear end of the base frame and is used for connecting the rear swing plate through a pin shaft.

[0020] The middle base frame assembly comprises a main frame, a front swing plate, a rear swing plate, a transverse front oil cylinder, a transverse rear oil cylinder, a transverse front oil cylinder lower mounting seat, a transverse rear oil cylinder lower mounting seat, a longitudinal left oil cylinder, a longitudinal right oil cylinder, a longitudinal left oil cylinder upper mounting seat, a longitudinal right oil cylinder upper mounting seat, a lower base frame connecting plate and a front mounting seat assembly.

[0021] The main frame is entirely composed of rectangular section steel pipes which are welded together, and a plurality of connecting plates are welded on the main frame, which are used for mounting oil cylinders or connecting other parts of the leveling chassis.

[0022] The front swing plate is formed by cutting and punching a steel plate with a thickness of 40 mm, and the steel plate is generally hexagonal, which is cut at two corners of the rectangular upper part, and a circular through hole with a diameter of 60 mm is formed in the middle of the upper part, and the lower end is mounted at the front end of the main frame by welding; and the front swing plate is connected with the front connecting hole in the middle of the front end of the base frame of the upper base frame assembly through a pin shaft.

[0023] The rear swing plate is composed of two hexagonal steel plates with a thickness of 20 mm, and a circular through hole with a diameter of 40 mm is formed in the middle of the upper part of each steel plate, and the lower end is mounted on the front and rear sides of the steel pipe at the rear end of the main frame by welding; and the rear swing plate is connected with the rear connecting hole in the middle of the rear end of the base frame of the upper base frame assembly through a pin shaft.

[0024] The transverse front oil cylinder is located at the front left side of the main frame, and the upper end is mounted on the upper front mounting seat through a pin shaft, and the lower end is fixed on the transverse front oil cylinder lower mounting seat through a pin shaft; and the piston is used to realize the left-right leveling of the harvester body.

[0025] The transverse rear oil cylinder is located at the rear left side of the main frame, and the upper end is mounted on the upper rear mounting seat through a pin shaft, and the lower end is fixed on the transverse rear oil cylinder lower mounting seat through a pin shaft; and the piston is used to realize the left-right leveling of the harvester body in cooperation with the transverse front oil cylinder.

[0026] The transverse front oil cylinder lower mounting seat is composed of two steel plates with a thickness of 20 mm, and a circular through hole with a diameter of 25 mm is formed in the center of each steel plate, and the transverse front oil cylinder lower mounting seat is mounted inside the front left end of the main frame by welding, and is used for fixing the upper end of the transverse front oil cylinder through a pin shaft.

[0027] The transverse rear oil cylinder lower mounting seat is the same as the transverse front oil cylinder lower mounting seat in size and shape, and is mounted inside the rear left end of the main frame by welding, and is used for fixing the upper end of the transverse rear oil cylinder through a pin shaft.

[0028] The longitudinal left oil cylinder and the longitudinal right oil cylinder are arranged on the left and right sides of the rear end of the main frame, the upper ends are fixed on the longitudinal left oil cylinder mounting seat and the longitudinal right oil cylinder mounting seat through pin shafts, and the lower ends are fixed on the longitudinal oil cylinder lower mounting seats arranged on the left and right sides of the lower chassis frame body through pin shafts; the piston stretching and retracting is used to realize the leveling operation in the front and back directions of the harvester vehicle body.

[0029] The longitudinal left oil cylinder mounting seat and the longitudinal right oil cylinder mounting seat are arranged on the outer sides of the middle rear parts of the left and right sides of the rear end of the main frame through welding, are rectangular steel plates with circular through holes in the middle, and are used to fix the upper ends of the longitudinal left oil cylinder and the longitudinal right oil cylinder through pin shafts.

[0030] The lower chassis frame connecting plate is composed of four steel plates with a thickness of 20 mm and circular through holes in the upper ends, two groups of the connecting plates are arranged on the left and right sides of the rear end of the main frame through welding, the circular through hole ends face each other, and the connecting plate is used to be connected with the lower chassis frame assembly through pin shafts.

[0031] The two front mounting seat assemblies are composed of rectangular section steel pipes and steel plates with circular holes, the upper end faces of the rectangular section steel pipes are fixed on the lower end faces of the rear part of the main frame through welding, the two front mounting seat assemblies are arranged on the left and right sides of the main frame, and the front part in the walking and turning assembly is fixed.

[0032] The lower chassis frame assembly comprises a lower chassis frame body, a rear mounting seat assembly, two longitudinal oil cylinder lower mounting seats and two hinged holes.

[0033] The lower chassis frame body is composed of rectangular section steel pipes welded together, the whole body is half of the main frame, the width is the same as that of the main frame, and the top ends of the two outermost steel pipes at the front end are in arc shapes.

[0034] The rear mounting seat assembly is composed of four mounting seats, two groups of the mounting seats are arranged on the left and right sides of the rear part and the middle part of the chassis frame body, and are fixed on the chassis frame body through bolts; and the rear part in the walking and turning assembly is mounted.

[0035] The two longitudinal oil cylinder lower mounting seats are steel plates with circular holes, are arranged at the lowermost part of the middle part of the lower chassis frame body through welding, and are used to fix the longitudinal left oil cylinder and the longitudinal right oil cylinder.

[0036] The two hinged holes are circular through holes with a diameter of 32 mm, are located on the side faces of the two rectangular section steel pipes at the frontmost left and right sides of the lower chassis frame body, and are used to be connected with the middle chassis frame assembly through pin shafts.

[0037] The walking and turning assembly comprises a front part and a rear part.

[0038] The front part is installed at the lowermost part of the front of the harvester chassis, is installed at the bottom of the middle chassis frame assembly through a front mounting seat assembly, and comprises leaf springs, a steering assembly, wheels, main shafts, motors, reversing reducers, and transfer cases.

[0039] The rear part is installed at the lowermost part of the rear of the harvester chassis, is connected through a rear mounting seat assembly and a lower chassis frame assembly, has the same structure and size as the front part, and is used to cooperate with the front part to realize the driving and steering of the harvester.

[0040] The leaf springs are four, are arranged above the four wheels, are respectively installed on the front mounting seat assembly and the rear mounting seat assembly at the upper end, are fixed on the left and right sides of the middle parts of the front and rear main shafts through bolts and clamps at the lower end, connect the driving and steering assembly and the middle chassis frame assembly and the lower chassis frame assembly, and simultaneously play a damping role.

[0041] The steering assembly is two sets, is arranged on the front part and the rear part, comprises a steering pull rod, a steering power-assisted oil cylinder and other parts, and the two sets of steering assemblies can realize four-wheel steering of the harvester chassis.

[0042] The wheels are four, are arranged at the two ends of the two main shafts close to the four corners of the harvester chassis, comprise a hub, a tire and other parts, and realize four-wheel driving and four-wheel steering of the harvester by cooperation.

[0043] The main shafts are two, are connected with the wheels at the outermost ends of the two ends, are fixed with the steering assembly at the upper end, and are internally provided with a transmission shaft and other parts.

[0044] The motors are two, are respectively fixed on the two main shafts, are connected with a battery at a power input end, are connected with a reversing reducer at a power output end, and are used to provide power for the driving part of the entire harvester to drive the wheels to rotate.

[0045] The reversing reducers are two, are respectively fixed on the two main shafts, are connected with the motor output shaft end at a power input end, are connected with the transfer case at a power output end, and are used to reduce the power output by the motor output shaft and change the direction of the power.

[0046] The transfer cases are two, are respectively installed on the two main shafts, are connected with the power output end of the reversing reducer at a power input end, divide the power transmitted by the reversing reducer to the transmission shafts at the left and right sides in the main shaft, transmit the power to the wheels through the transmission shafts, drive the wheels to rotate, and drive the entire harvester to drive.

[0047] Compared with the prior art, the present application has the following beneficial effects:

[0048] 1. Electric driving is adopted, which not only avoids pollution of the internal combustion engine to the field and the atmosphere, but also reduces vibration of the entire machine, and can improve the operation quality of the harvester.

[0049] 2, The four-wheel steering design can improve the passability of the harvester in the field, and reduce the turning radius, making the whole machine more flexible.

[0050] 3, The operation part and the walking part are driven by motors, and the operation part and the front and rear wheels are driven by independent motors, which not only simplifies the power transmission system of the harvester, reduces the weight of the whole machine, but also improves the stability of the power output of the operation part.

[0051] 4, The three-layer chassis and two groups of hydraulic oil cylinders are used to realize the leveling operation of the harvester chassis, which avoids the mutual interference between the horizontal leveling and the longitudinal leveling, and is easy to control.

[0052] 5, The front and rear wheels are provided with leaf spring shock absorbers, compared with the traditional harvester without shock absorbers, the stability of the harvester body can be maximized when working on uneven land in mountainous areas, which helps to ensure the operation quality. DETAILED DESCRIPTION

[0053] Figure 1 The assembly drawing of the present application;

[0054] Figure 2 The isometric view of the present application;

[0055] Figure 3 The isometric view of the upper chassis frame assembly of the present application;

[0056] Figure 4 The isometric view of the middle chassis frame assembly of the present application;

[0057] Figure 5 The isometric view of the lower chassis frame assembly of the present application;

[0058] Figure 6 The isometric view of the walking and steering assembly of the present application.

[0059] In the figure: A, upper chassis frame assembly; B, middle chassis frame assembly; C, lower chassis frame assembly; D, walking and steering assembly; 1, base frame; 2, front frame; 3, rear frame; 4, battery; 5, power motor; 6, front mounting frame; 7, mudguard; 8, front ladder; 9, rear ladder; 10, upper rear mounting seat; 11, upper front mounting seat; 12, front connecting hole; 13, rear connecting hole; 14, main frame; 15, front swing plate; 16, rear swing plate; 17, transverse front oil cylinder; 18, transverse rear oil cylinder; 19, transverse front oil cylinder lower mounting seat; 20, transverse rear oil cylinder lower mounting seat; 21, longitudinal left oil cylinder; 22, longitudinal right oil cylinder; 23, longitudinal left oil cylinder upper mounting seat; 24, longitudinal right oil cylinder upper mounting seat; 25, lower chassis frame connecting plate; 26, front mounting seat assembly; 27, lower chassis frame main body; 28, rear mounting seat assembly; 29, longitudinal oil cylinder lower mounting seat; 30, hinged hole; 31, front part; 32, rear part; 33, leaf spring; 34, steering assembly; 35, wheel; 36, main shaft; 37, motor; 38, reversing speed reducer; 39, transfer. DETAILED DESCRIPTION

[0060] Referring to Figures 1 to 2 The leveling chassis of the electrically-driven small-sized corn kernel harvester for mountain and hilly land comprises an upper chassis frame assembly (A), a middle chassis frame assembly (B), a lower chassis frame assembly (C), and a walking and steering assembly (D).

[0061] The upper chassis frame assembly (A) is located at the uppermost end of the whole harvester chassis and is used for mounting a header, a cab, a threshing and cleaning device, a grain tank, and the like; the middle chassis frame assembly (B) is located below the upper chassis frame assembly (A) and above the lower chassis frame assembly (C) and is used for connecting the upper chassis frame assembly (A) below and the lower chassis frame assembly (C) and cooperating with the upper chassis frame assembly (A) below and the lower chassis frame assembly (C) to complete the leveling operation of the harvester chassis; the front part (31) of the walking and steering assembly (D) is connected with the leaf spring (33); the lower chassis frame assembly (C) is located below the middle chassis frame assembly (B) and is hingedly connected with the middle chassis frame assembly (B) and can rotate relative to the middle chassis frame assembly (B) at the connecting position; the leaf spring (31) of the rear part (32) of the walking and steering assembly (D) is connected below; and the walking and steering assembly (D) is located at the lowermost end of the whole harvester chassis, is divided into the front part (31) and the rear part (32), and is responsible for the driving and steering of the whole harvester.

[0062] Referring to Figure 3 The main body of the upper chassis frame assembly (A) is welded by rectangular section steel pipes and comprises a base frame (1), a front frame (2), a rear frame (3), a battery (4), a power motor (5), a front mounting frame (6), a mudguard (7), a front ladder (8), a rear ladder (9), an upper rear mounting seat (10), an upper front mounting seat (11), a front connecting hole (12), and a rear connecting hole (13).

[0063] The base frame (1) is welded by rectangular section steel pipes, and is located at the lowermost part of the whole upper chassis frame assembly (A) and serves as the base of the whole upper chassis frame assembly (A), and the front frame (2) and the rear frame (3) are welded on the base frame (1);

[0064] The front frame (2) is welded by rectangular section steel pipes, and is located at the upper front end of the whole upper chassis frame assembly (A) and is installed on the base frame (1) as a whole by welding, and is wider than the base frame (1);

[0065] The rear frame (3) is welded by rectangular section steel pipes, and is located at the upper rear end of the whole upper chassis frame assembly (A) and the rear end of the front frame (2), and is installed on the base frame (1) as a whole by welding, and is wider than the base frame (1);

[0066] The battery (4) is the power source of the whole harvester, and is installed at the inner front end of the front frame (2) as a whole;

[0067] The power motor (5) is fixed to the inner rear end of the front frame (2) by bolts, and the input end is connected to the battery (4) by wires, and the output power is used to drive the harvesting, threshing and cleaning operations of the working part above the chassis of the harvester;

[0068] The front mounting frame (6) is welded by rectangular section steel pipes and steel plates, and is installed vertically on the front end of the front frame (2) by welding, and the connecting plates for hanging the cutting platform elevator and other working parts are welded on the front mounting frame (6);

[0069] The fender (7) is made of 2mm thick steel plates and is bent twice, and two of them are symmetrically installed on the front frame (2) by welding, and the other two are symmetrically installed on the rear frame (2) by welding, and the four fenders (7) are arranged above the four wheels (35);

[0070] The front ladder (8) is welded by rectangular section steel pipes, and the upper end is installed on the left front part of the front frame (2) by welding, and the front end is welded to the side of the front mounting frame (6) by a rectangular section steel pipe;

[0071] The rear ladder (9) is welded by rectangular section steel pipes, and is the same shape as the front ladder (8), and the upper end is installed on the left rear part of the front frame (2) by welding;

[0072] The upper rear mounting seat (10) is composed of two steel plates with a diameter of 25mm, and is installed on the side of the steel pipe on the right side of the rear frame (3) by welding, and is used to install the transverse rear oil cylinder (18);

[0073] The upper front mounting seat (11) is the same size as the upper rear mounting seat (10), is welded to the right side of the base frame (1) inside, and is used for mounting the transverse front oil cylinder (17);

[0074] The front connecting hole (12) is a circular through hole with a diameter of 60 mm, is located at the middle of the front end of the base frame (1), and is used for connecting the front swing plate (15) through a pin shaft;

[0075] The rear connecting hole (13) is a circular through hole with a diameter of 40 mm, is located at the middle of the rear end of the base frame (1), and is used for connecting the rear swing plate (16) through a pin shaft.

[0076] Referring to Figure 4 The middle base frame assembly (B) comprises a main frame (14), a front swing plate (15), a rear swing plate (16), a transverse front oil cylinder (17), a transverse rear oil cylinder (18), a transverse front oil cylinder lower mounting seat (19), a transverse rear oil cylinder lower mounting seat (20), a longitudinal left oil cylinder (21), a longitudinal right oil cylinder (22), a longitudinal left oil cylinder upper mounting seat (23), a longitudinal right oil cylinder upper mounting seat (24), a lower base frame connecting plate (25), and a front mounting seat assembly (26);

[0077] The main frame (14) is composed of a rectangular section steel pipe welded in the whole body, a plurality of connecting plates are welded on the main frame (14), and the connecting plates are used for mounting oil cylinders or connecting other parts of the leveling base;

[0078] The front swing plate (15) is formed by cutting and punching a steel plate with a thickness of 40 mm, the steel plate is generally hexagonal, a knife is cut from each of the two corners of the rectangular upper part, a circular through hole with a diameter of 60 mm is formed in the middle of the upper part, the lower end is welded to the front end of the main frame (14), and the front swing plate (15) is used for being connected through a pin shaft and the front connecting hole (12) in the middle of the front end of the base frame (1) in the upper base frame assembly (A).

[0079] The rear swing plate (16) is composed of two hexagonal steel plates with the same shape and a thickness of 20 mm, a circular through hole with a diameter of 40 mm is formed in the middle of the upper part of each of the two steel plates, the lower end is welded to the front and rear sides of the steel pipe at the rear end of the main frame (14), and the rear swing plate (16) is used for being connected through a pin shaft and the rear connecting hole (13) in the middle of the rear end of the base frame (1) in the upper base frame assembly (A).

[0080] The transverse front oil cylinder (17) is located at the left front part of the main frame (14), the upper end is mounted on the upper front mounting seat (11) through a pin shaft, the lower end is fixed on the transverse front oil cylinder lower mounting seat (19) through a pin shaft, and the piston is used for realizing left-right leveling of the harvester vehicle body.

[0081] The transverse rear oil cylinder (18) is located at the left rear of the main frame (14), the upper end is installed on the upper rear mounting seat (10) through a pin shaft, and the lower end is fixed on the transverse rear oil cylinder lower mounting seat (20) through a pin shaft; and the transverse front oil cylinder (17) is matched to realize the left-right leveling of the harvester body through the piston extension and contraction;

[0082] The transverse front oil cylinder lower mounting seat (19) is composed of two steel plates with a thickness of 20 mm and a circular through hole with a diameter of 25 mm in the center, is installed inside the left front end of the main frame (14) through welding, and is used for fixing the upper end of the transverse front oil cylinder (17) through a pin shaft.

[0083] The transverse front oil cylinder lower mounting seat (19) is composed of two steel plates with a thickness of 20 mm and a circular through hole with a diameter of 25 mm in the center, is installed inside the left front end of the main frame (14) through welding, and is used for fixing the upper end of the transverse front oil cylinder (17) through a pin shaft.

[0084] The longitudinal left oil cylinder (21) and the longitudinal right oil cylinder (22) are separately arranged on the left and right sides of the rear end of the main frame (14), the upper ends are respectively installed on the longitudinal left oil cylinder upper mounting seat (23) and the longitudinal right oil cylinder upper mounting seat (24) through a pin shaft, and the lower ends are installed on the longitudinal oil cylinder lower mounting seat (29) separately arranged on the left and right sides of the lower chassis frame body (27) through a pin shaft; the piston extension and contraction are used to realize the leveling operation in the front-rear direction of the harvester body.

[0085] The longitudinal left oil cylinder upper mounting seat (23) and the longitudinal right oil cylinder upper mounting seat (24) are separately arranged on the left and right sides of the rear end of the main frame (14) through welding, are both rectangular steel plates with a circular through hole in the middle, are used for fixing the upper ends of the longitudinal left oil cylinder (21) and the longitudinal right oil cylinder (22) through a pin shaft, and are arranged on the outside of the middle rear part.

[0086] The lower chassis frame connecting plate (25) is composed of four steel plates with a thickness of 20 mm and a circular through hole at the upper end, two groups are respectively installed on the left and right sides of the rear end of the main frame (14) through welding, the circular through hole ends face each other, and are used for connecting the lower chassis frame assembly (C) through a pin shaft.

[0087] The two front mounting seat assemblies (26) are respectively composed of a rectangular cross-section steel pipe and a steel plate with a circular hole, the upper end surface of the rectangular cross-section steel pipe is fixed on the lower end surface of the rear part of the main frame (14) through welding, the two front mounting seat assemblies (26) are separately arranged on the left and right sides of the main frame (14), and are used for fixing the front part (31) in the walking and turning assembly (D).

[0088] Referring to Figure 5 , the lower chassis frame assembly (C) comprises a lower chassis frame body (27), a rear mounting seat assembly (28), two longitudinal oil cylinder lower mounting seats (29), and two hinged holes (30).

[0089] The lower chassis frame body (27) is welded by rectangular section steel pipes, and is half of the main frame (14) with the same width as the main frame (14), and the top ends of the two outer extending steel pipes at the front end are in arc shape;

[0090] The rear mounting seat assembly (28) is composed of four mounting seats, two mounting seats are arranged on the left and right sides of the rear and middle parts of the lower chassis frame body (27), and are fixed on the lower chassis frame body (27) by bolts respectively; and are used for mounting the rear part (32) of the walking and steering assembly (D);

[0091] The two longitudinal oil cylinder lower mounting seats (29) are steel plates with round holes, which are welded to the lowermost part of the middle part of the lower chassis frame body (27), and are used for fixing the longitudinal left oil cylinder (21) and the longitudinal right oil cylinder (22);

[0092] The two hinge holes (30) are circular through holes with a diameter of 32 mm, which are located on the side surfaces of the two outer extending rectangular section steel pipes at the front end of the lower chassis frame body (27), and are used for connecting the middle chassis assembly (B) through a pin shaft;

[0093] Referring to Figure 6 , the walking and steering assembly (D) includes a front part (31) and a rear part (32);

[0094] The front part (31) is installed at the lowermost part of the front part of the harvester chassis, is installed at the bottom of the middle chassis assembly (B) through the front mounting seat assembly (26), and includes leaf springs (33), a steering assembly (34), wheels (35), main shafts (36), motors (37), reversing reducers (38) and a transfer (39);

[0095] The rear part (32) is installed at the lowermost part of the rear part of the harvester chassis, is connected with the lower chassis assembly (C) through the rear mounting seat assembly (28), and has the same structure and size as the front part (31), and is used for cooperating with the front part (31) to realize the driving and steering of the harvester;

[0096] The leaf springs (33) are four, are arranged above the four wheels (35), are installed at the front mounting seat assembly (26) and the rear mounting seat assembly (28) at the upper ends respectively, are fixed on the left and right sides of the middle parts of the front and rear main shafts (36) at the lower parts, connect the walking and steering assembly (D) and the middle chassis assembly (B) and the lower chassis assembly (C), and simultaneously play a damping role;

[0097] The steering assembly (34) has two sets, is arranged on the front part (31) and the rear part (32), includes a steering pull rod, a steering assist oil cylinder and other parts, and the two sets of steering assemblies (34) can realize four-wheel steering of the harvester chassis.

[0098] The wheels (35) are four in number and are located at both ends of the two main shafts (36) near the four corners of the harvester chassis. They include wheel hubs, tires and other parts, which work together to achieve four-wheel drive and four-wheel steering of the harvester.

[0099] The main shaft (36) is divided into two sections, front and rear. The outermost ends of both ends are connected to wheels (35), and a steering assembly (34) is fixed on top. The drive shaft and other components are installed inside.

[0100] There are two motors (37), which are fixed on the front and rear main shafts (36) respectively. The power input end is connected to the battery (4), and the power output end is connected to the reversing reducer (38) to provide power for the walking part of the entire harvester and drive the wheels (35) to rotate.

[0101] There are two reversing reducers (38), which are fixed on the front and rear main shafts (36) respectively. The power input end is connected to the output shaft end of the motor (37), and the power output end is connected to the transfer case (39) to reduce the power output from the output shaft of the motor (37) and increase the torque and reverse the direction.

[0102] There are two transfer units (39), which are respectively installed on the front and rear main shafts (36). The power input end is connected to the power output end of the reversing reducer (38), which distributes the power transmitted from the reversing reducer (38) to the transmission shafts on the left and right sides inside the main shaft (36). The power is then transmitted to the wheels (35) through the transmission shafts, driving the wheels (35) to rotate and driving the entire harvester to move.

[0103] Working principle of the invention:

[0104] See Figures 1 to 5 The working principle of the leveling chassis of the electric-driven small corn kernel harvester for mountainous and hilly areas of the present invention is as follows. The battery (4) outputs electrical energy to drive the power motor (5) to rotate. The rotation of the power motor (5) drives the working parts on the upper part of the harvester chassis to complete the operations such as ear picking, lifting, threshing and cleaning. On the other hand, it drives the hydraulic pump to operate. The hydraulic pump drives the piston extension and retraction of the transverse front oil cylinder (17) and transverse rear oil cylinder (18) installed between the upper chassis frame assembly (A) and the middle chassis frame assembly (B), so as to realize the left and right tilt of the upper chassis frame assembly (A) relative to the middle chassis frame assembly (B), thereby realizing the left and right transverse leveling operation of the harvester body. At the same time, it drives the piston extension and retraction of the longitudinal left oil cylinder (21) and longitudinal right oil cylinder (22) installed between the middle chassis frame assembly (B) and the lower chassis frame assembly (C), so as to realize the up and down movement of the lower chassis frame assembly (C) relative to the middle chassis frame assembly (B), thereby realizing the front and rear longitudinal leveling operation of the harvester body.

[0105] See Figure 6The walking and steering assembly (D) of the present application works as follows. The battery (4) outputs electric energy to drive the motor (37) installed on the front and rear main shaft (36) to rotate. The power output by the motor (37) is transmitted to the power input shaft of the reversing speed reducer (38) by the power output shaft. The power enters the reversing speed reducer (38) to realize speed reduction, torque increase and direction conversion, and is then output by the power output shaft of the reversing speed reducer (38). The torque output by the power output shaft of the reversing speed reducer (38) is transmitted to the power transmission shaft inside the main shaft (36) through the transfer (39). The power is transmitted to the wheels (35) by the power transmission shaft, realizing the driving operation of the harvester. At the same time, the steering oil cylinder in the steering assembly (34) at the front and rear main shaft (36) receives the power output by the hydraulic pump, drives the steering pull rod to move, and drives the wheels to rotate, thereby realizing four-wheel drive and four-wheel steering of the harvester chassis.

Claims

1. An electrically driven three-layer mountain hilly small corn kernel harvester leveling chassis, characterized in that, The upper chassis frame assembly (A), the middle chassis frame assembly (B), the lower chassis frame assembly (C) and the walking and steering assembly (D); The upper chassis frame assembly (A) is located at the uppermost end of the entire harvester chassis, and is used for mounting a header, a cab, a threshing and cleaning device and a grain tank; the middle chassis frame assembly (B) is located below the upper chassis frame assembly (A) and above the lower chassis frame assembly (C), and is used for connecting the upper chassis frame assembly (A) below and the lower chassis frame assembly (C), and cooperates with the upper chassis frame assembly (A) below and the lower chassis frame assembly (C) to complete the leveling operation of the harvester chassis; the front part (31) of the walking and steering assembly (D) is connected with the plate spring (33); the lower chassis frame assembly (C) is located below the middle chassis frame assembly (B), and the two are hingedly connected and can rotate relative to each other at the connection; the lower part is connected with the plate spring (33) in the rear part (32) of the walking and steering assembly (D); the walking and steering assembly (D) is located at the lowermost end of the entire harvester chassis, and is divided into the front part (31) and the rear part (32), and is responsible for the driving and steering of the entire harvester; The upper chassis frame assembly (A) is mainly composed of a rectangular-section steel pipe, and includes a base frame (1), a front frame (2), a rear frame (3), a battery (4), a power motor (5), a front mounting frame (6), a mudguard (7), a front ladder (8), a rear ladder (9), an upper rear mounting seat (10), an upper front mounting seat (11), a front connecting hole (12) and a rear connecting hole (13); The base frame (1) is composed of a rectangular-section steel pipe, and is located at the lowermost end of the entire upper chassis frame assembly (A) and serves as the base of the entire upper chassis frame assembly (A), and the front frame (2) and the rear frame (3) are welded on the base frame (1); The front frame (2) is composed of a rectangular-section steel pipe, and is located at the upper front end of the entire upper chassis frame assembly (A) and is integrally welded on the base frame (1), and the front frame (2) is wider than the base frame (1); The rear frame (3) is composed of a rectangular-section steel pipe, and is located at the upper rear end of the entire upper chassis frame assembly (A) and the rear end of the front frame (2) and is integrally welded on the base frame (1), and the rear frame (3) is wider than the base frame (1); The battery (4) is the power source of the entire harvester, and is integrally mounted at the front end of the inside of the front frame (2); The power motor (5) is fixed on the rear end of the inside of the front frame (2) by bolts, the input end is connected with the battery (4) by wires, and the output power is used to drive the harvesting, threshing and cleaning operation of the working part above the harvester chassis; The front mounting frame (6) is composed of a rectangular-section steel pipe and a steel plate, and is vertically welded on the front end of the front frame (2), and a connecting plate for hanging a header elevator is welded on the front mounting frame (6); The mudguard (7) is composed of four 2mm-thick steel plates, and is formed by twice bending, two of which are symmetrically welded on the front frame (2), and the other two are symmetrically welded on the rear frame (3), and the four mudguards (7) are arranged above four wheels (35). The front ladder (8) is welded by rectangular section steel pipe, and is installed on the left front part of the front frame (2) through welding. The rear ladder (9) is welded by rectangular section steel pipe, and is installed on the left rear part of the front frame (2) through welding. The upper rear mounting seat (10) is composed of two steel sheets with a diameter of 25mm, and is installed on the right side of the rear frame (3) through welding. The upper front mounting seat (11) is the same as the upper rear mounting seat (10), and is installed on the right side of the base frame (1) through welding. The front connecting hole (12) is a circular through hole with a diameter of 60mm, and is located at the middle of the front end of the base frame (1). The rear connecting hole (13) is a circular through hole with a diameter of 40mm, and is located at the middle of the rear end of the base frame (1). The middle chassis frame assembly (B) comprises a main frame (14), a front swing plate (15), a rear swing plate (16), a horizontal front oil cylinder (17), a horizontal rear oil cylinder (18), a horizontal front oil cylinder lower mounting seat (19), a horizontal rear oil cylinder lower mounting seat (20), a vertical left oil cylinder (21), a vertical right oil cylinder (22), a vertical left oil cylinder upper mounting seat (23), a vertical right oil cylinder upper mounting seat (24), a lower chassis frame connecting plate (25) and a front mounting seat assembly (26). The main frame (14) is welded by rectangular section steel pipe, and a plurality of connecting plates are welded on the main frame (14). The front swing plate (15) is cut and punched from a steel plate with a thickness of 40mm, and the steel plate is hexagonal as a whole. The rear swing plate (16) is composed of two hexagonal steel plates with a thickness of 20mm, and a circular through hole with a diameter of 40mm is formed in the middle of the upper part of the left and right steel plates. The horizontal front oil cylinder (17) is located on the left front part of the main frame (14), and the upper end is installed on the upper front mounting seat (11) through a pin shaft, and the lower end is fixed on the horizontal front oil cylinder lower mounting seat (19) through a pin shaft. The horizontal rear oil cylinder (18) is located on the left rear part of the main frame (14), and the upper end is installed on the upper rear mounting seat (10) through a pin shaft, and the lower end is fixed on the horizontal rear oil cylinder lower mounting seat (20) through a pin shaft. The horizontal front oil cylinder lower mounting seat (19) is composed of two steel plates with a thickness of 20mm, and a circular through hole with a diameter of 25mm is formed in the center of the steel plates. The horizontal rear oil cylinder lower mounting seat (20) is the same as the horizontal front oil cylinder lower mounting seat (19), and is installed in the left rear end of the main frame (14) through welding. The longitudinal left oil cylinder (21) and the longitudinal right oil cylinder (22) are arranged on the left and right sides of the rear end of the main frame (14), the upper ends are installed on the longitudinal left oil cylinder upper mounting seat (23) and the longitudinal right oil cylinder upper mounting seat (24) through pin shafts, and the lower ends are installed on the longitudinal oil cylinder lower mounting seats (29) arranged on the left and right sides of the lower chassis frame body (27) through pin shafts; The longitudinal left oil cylinder upper mounting seat (23) and the longitudinal right oil cylinder upper mounting seat (24) are arranged on the outer sides of the middle rear parts of the left and right sides of the rear end of the main frame (14) through welding, and are rectangular steel plates with circular through holes in the middle parts; The lower chassis frame connecting plate (25) is composed of four steel plates with a thickness of 20 mm and circular through holes in the upper ends, two groups of the steel plates are installed on the left and right sides of the rear end of the main frame (14) through welding, and the circular through hole ends correspond to each other; The two front mounting seat assemblies (26) are respectively composed of a rectangular section steel pipe and a steel plate with a circular hole, the upper end surface of the rectangular section steel pipe is fixed on the lower end surface of the rear part of the main frame (14) through welding, and the two front mounting seat assemblies (26) are arranged on the left and right sides of the main frame (14); The lower chassis frame assembly (C) comprises a lower chassis frame body (27), a rear mounting seat assembly (28), two longitudinal oil cylinder lower mounting seats (29) and two hinged holes (30); The lower chassis frame body (27) is integrally formed by welding of a rectangular section steel pipe, the overall length is half of the main frame (14), the width is the same as that of the main frame (14), and the top ends of the two outermost steel pipes at the front end are in arc shapes; The rear mounting seat assembly (28) is composed of four mounting seats, two groups of the mounting seats are arranged on the left and right sides of the rear part and the middle part of the chassis frame body (27), and are fixed on the chassis frame body (27) through bolts respectively; The two longitudinal oil cylinder lower mounting seats (29) are steel plates with circular holes, which are installed on the lowermost part of the middle part of the lower chassis frame body (27) through welding; The two hinged holes (30) are circular through holes with a diameter of 32 mm, which are located on the side surfaces of the two rectangular section steel pipes extending outward on the left and right sides at the front of the lower chassis frame body (27); The walking and steering assembly (D) comprises a front part (31) and a rear part (32); The front part (31) is installed on the lowermost part of the front part of the harvester chassis, is installed on the bottom of the middle chassis frame assembly (B) through the front mounting seat assembly (26), and comprises leaf springs (33), a steering assembly (34), wheels (35), main shafts (36), motors (37), reversing reducers (38) and a transfer (39); The rear part (32) is installed on the lowermost part of the rear part of the harvester chassis, is connected through the rear mounting seat assembly (28) and the lower chassis frame assembly (C), and the overall structure and size of the rear part (32) are the same as those of the front part (31); The leaf springs (33) are four in number, are arranged above the four wheels (35), and the upper ends are installed on the front mounting seat assembly (26) and the rear mounting seat assembly (28) respectively, and the lower middle parts are fixed on the left and right sides of the middle parts of the front and rear main shafts (36) through bolts and clamps. The steering assembly (34) has two sets, which are arranged on the front (31) and rear (32), including steering tie rod and steering assist cylinder; The wheel (35) has four, which are arranged on the two ends of the two main shafts (36) near the four corners of the harvester chassis, including hub and tire; The main shaft (36) is divided into two, the outermost ends of which are connected with the wheel (35), the upper part of which is fixed with the steering assembly (34), and the inside of which is installed with the transmission shaft; The motor (37) has two, which are respectively fixed on the front and rear main shafts (36), the power input end of which is connected with the battery (4), and the power output end of which is connected with the reversing reducer (38); The reversing reducer (38) has two, which are respectively fixed on the front and rear main shafts (36), the power input end of which is connected with the motor (37) output shaft end, and the power output end of which is connected with the transfer (39); The transfer (39) has two, which are respectively installed on the front and rear main shafts (36), and the power input end of which is connected with the power output end of the reversing reducer (38).

Images