A scissor-type agricultural chassis with adjustable wheelbase and chassis height and its working method

Abstract

The present invention discloses a scissor-type agricultural chassis with adjustable wheelbase and chassis height and its working method. In the chassis device of the present invention, there are two platform plates arranged horizontally and crosswise. The two platform plates are hinged by a hinge shaft I and are driven to open and close by a stepping motor. At both ends of each platform plate, there is a component I composed of an electric cylinder, a steering motor, a connecting frame, and a traveling mechanism. In the component I, the piston rod of the electric cylinder is fixed to the platform plate, the cylinder body of the electric cylinder is fixed to one end of the connecting frame, the housing of the steering motor is fixed to the other end of the connecting frame, and the output shaft of the steering motor drives the traveling mechanism to rotate; there are multiple chassis devices arranged in an array. The present invention drives the corresponding platform plate to rise and fall through the piston rod of the electric cylinder, thereby realizing the adjustment of height, and drives the two platform plates to open and close by a stepping motor. Each platform plate drives two traveling mechanisms to move, thereby realizing the adjustment of the wheelbase.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and particularly relates to a scissor-type agricultural chassis with adjustable wheelbase and chassis height and its working method. Background Art

[0002] The agricultural chassis is one of the key components of various agricultural machines, and its working performance and application range directly affect the use, applicability, operation efficiency, etc. of agricultural machines. There are many types of agricultural chassis, mainly divided into chassis for single agricultural machine binding use and chassis with adjustable single wheelbase or chassis height. The chassis for single agricultural machine binding use has a small application range and can only be applied to a single agricultural machine. Although the chassis with adjustable single wheelbase or chassis height can be applied to a variety of working environments, only one of the wheelbase and chassis height can be adjusted. Currently, there is also an agricultural chassis with adjustable wheelbase and chassis height using a draw-type structure. This agricultural chassis can complete the adjustment of wheelbase and chassis height through a drawing action, but its structure is too large to be applicable to small planting environments, and it has a complex structure, a long adjustment time during use, and low work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and propose a scissor-type agricultural chassis with adjustable wheelbase and chassis height and its working method.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A scissor-type agricultural chassis with adjustable wheelbase and chassis height of the present invention includes a chassis device and a hinge. The chassis device includes a platform plate, an electric cylinder, a steering motor, a connecting frame, and a traveling mechanism. A groove is formed in the middle of the platform plate, a convex plate is integrally formed at one end, a notch is formed at the other end, and hinge holes are formed at both ends of the platform plate at the convex plate and the notch. Two platform plates are arranged opposite to the groove of the platform plate and cross horizontally. The two platform plates are hinged by a hinge shaft one and are driven to open and close by a stepping motor. A component one composed of an electric cylinder, a steering motor, a connecting frame, and a traveling mechanism is arranged at both ends of each platform plate. Among them, the piston rod of the electric cylinder faces upward and is fixed to the platform plate, the cylinder body of the electric cylinder is fixed to one end of the connecting frame, the housing of the steering motor is fixed to the other end of the connecting frame, and the output shaft of the steering motor faces downward and drives the traveling mechanism to rotate. Among them, the depth of the groove is equal to half of the thickness of the platform plate, and both the steering motor and the stepping motor have a brake function.

[0006] The chassis device is provided with a plurality of them arranged in an array, and a plurality of chassis devices in each column form a component two; the connection between the chassis devices in the component two is as follows: the ridges of the two platform plates of each chassis device are respectively inserted into the notches of the two platform plates of the adjacent chassis device, and are hinged to the corresponding notches through the hinge shaft two; the connection between adjacent component twos is as follows: in each pair of chassis devices facing each other, the convex plates integrally formed on one pair of the facing platform plates are hinged through a hinge, and the ends of the other pair of the facing platform plates with notches are also hinged through a hinge.

[0007] Preferably, the traveling mechanism includes a wheel frame and wheels. The wheels and the wheel frame form a rotating pair and are driven by a hub motor, and the wheel frame is fixed to the output shaft of the steering motor.

[0008] Preferably, installation grooves are provided at both ends of the platform plate.

[0009] The working method of a scissor-type agricultural chassis with adjustable wheelbase and chassis height according to the present invention is as follows:

[0010] First, fix the agricultural machine to each platform plate, then adjust the height of each platform plate and the wheelbase of each group of traveling mechanisms in each chassis device, and then each traveling mechanism starts to work to drive the agricultural machine forward.

[0011] Among them, the process of adjusting the height of each platform plate is as follows:

[0012] According to the instruction of the upper computer, the controllers in each chassis device synchronously control the piston rods of each electric cylinder to extend or shorten. The piston rods of the electric cylinders drive the corresponding platform plates to drive the agricultural machine to lift and lower. The distance between the platform plate and the connecting frame changes until the height of the agricultural machine reaches the preset working height, and the height adjustment work is completed.

[0013] The process of adjusting the wheelbase of each group of traveling mechanisms in each chassis device is as follows:

[0014] The controllers in each chassis device synchronously control each steering motor to drive the corresponding traveling mechanism to rotate until the traveling direction of the traveling mechanism is perpendicular to the corresponding platform plate. Then, the controllers in each chassis device synchronously control each stepping motor to drive the corresponding two platform plates to open and close. Each platform plate drives two traveling mechanisms to move. Two of the traveling mechanisms on different platform plates are in a group, and the other two traveling mechanisms are in a group until the distance between each group of traveling mechanisms in each chassis device reaches the preset distance. Then, the controllers in each chassis device synchronously control each steering motor to drive the corresponding traveling mechanism to rotate until the traveling directions of all traveling mechanisms are the same, and the wheelbase adjustment work is completed.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention adjusts the height through an electric cylinder and adjusts the wheelbase by adopting a scissor structure. Specifically, in the present invention, by controlling the telescopic length of the piston rods of the electric cylinders, the distance between each platform plate and the corresponding connecting frame is adjusted, thereby realizing the adjustment of the height. After each steering motor synchronously drives the corresponding traveling mechanism to rotate until the traveling direction of the traveling mechanism is perpendicular to the platform plate in the present invention, each stepping motor drives the corresponding two platform plates to open and close. Each platform plate drives two traveling mechanisms to move, so that the two traveling mechanisms in each group approach or separate, thereby adjusting the angle between the two platform plates in each chassis device, realizing the adjustment of the distance between the two traveling mechanisms in the corresponding groups, and thus realizing the adjustment of the wheelbase. The working method of the present invention is simple and convenient, with a short adjustment time and high working efficiency.

[0017] 2. The structure of the present invention is simple and has high adaptability. The present invention is provided with a plurality of chassis devices arranged in an array. Before actual work, the number of chassis devices can be increased or decreased to adapt to the size of agricultural machinery, and thus it can adapt to large-scale or small-scale planting environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the chassis device in the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the platform plate and the stepping motor in the present invention;

[0021] Figure 4 is a schematic diagram of the structure of the notch on the platform plate in the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the integrally formed convex plate on the platform plate in the present invention;

[0023] Figure 6 is a schematic diagram of the structure of the electric cylinder, the steering motor, the connecting frame and the traveling mechanism in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] As Figure 1 shown, a scissor-type agricultural chassis with adjustable wheelbase and chassis height according to the present invention includes a chassis device and a hinge.

[0026] As Figure 2 shown, the chassis device includes a platform plate 1, an electric cylinder 2, a steering motor 3, a connecting frame 4 and a traveling mechanism 5. As Figure 3 , Figure 4 and Figure 5As shown in the figure, a groove is provided in the middle of the platform plate 1, a convex plate is integrally formed at one end, a notch is provided at the other end, and hinge holes 6 are provided at both ends of the platform plate 1 at the convex plate and the notch; two platform plates 1 are provided opposite to the groove and horizontally crossed, and the two platform plates 1 are hinged by a hinge shaft 12 and are driven to open and close by a stepping motor 13 (the stepping motor 13 drives the hinge shaft 12). A component one composed of an electric cylinder 2, a steering motor 3, a connecting frame 4 and a traveling mechanism 5 is provided at both ends of each platform plate 1. The piston rod of the electric cylinder 2 faces upward and is fixed to the platform plate 1. The cylinder body of the electric cylinder 2 is fixed to one end of the connecting frame 4. The housing of the steering motor 3 is fixed to the other end of the connecting frame 4. The output shaft of the steering motor 3 faces downward and drives the traveling mechanism 5 to rotate. Among them, the depth of the groove is equal to half of the thickness of the platform plate 1, so that the upper end faces of the two platform plates are flush; both the steering motor 3 and the stepping motor 13 have a brake function.

[0027] A plurality of chassis devices are arranged in an array, and a plurality of chassis devices in each column form a component two; the connection between the chassis devices in the component two is as follows: the convex strips of the two platform plates 1 of each chassis device are respectively embedded into the notches of the two platform plates 1 in the adjacent chassis device and are hinged to the corresponding notches by a hinge shaft two; the connection between adjacent component twos is as follows: in each pair of (two) chassis devices that are opposite to each other, the convex plates integrally formed on one pair of the opposite platform plates 1 are hinged by a hinge, and the ends with notches of the other pair of the opposite platform plates 1 are also hinged by a hinge.

[0028] As a preferred embodiment, as Figure 2 and Figure 6 shown, the traveling mechanism 5 includes a wheel frame 51 and a wheel 53. The wheel 53 forms a rotating pair with the wheel frame 51 and is driven by a hub motor 52. The wheel frame 51 is fixed to the output shaft of the steering motor 3.

[0029] As a preferred embodiment, installation slots 11 are provided at both ends of the platform plate 1 for installing agricultural machinery.

[0030] Among them, each electric cylinder 2, each steering motor 3, the stepping motor 13 and the hub motor 52 driving the wheel 53 of each chassis device are all controlled by a controller 54, and each controller 54 communicates with the upper computer wirelessly.

[0031] The working method of a scissor-type agricultural chassis with adjustable wheelbase and chassis height according to the present invention is as follows:

[0032] First, the agricultural machinery is fixed to each platform plate 1, then the height of each platform plate 1 and the wheelbase of each group of traveling mechanisms 5 in each chassis device are adjusted, and then each traveling mechanism 5 starts to work to drive the agricultural machinery forward.

[0033] Among them, the process of adjusting the height of each platform plate 1 is as follows:

[0034] According to the instructions of the host computer, the controllers 54 in each chassis device synchronously control the piston rods of the electric cylinders 2 to extend or retract. The piston rods of the electric cylinders 2 drive the corresponding platform plates 1 to drive the agricultural machinery to lift. The distance between the platform plate 1 and the connecting frame 4 changes until the height of the agricultural machinery reaches the preset working height, completing the height adjustment work.

[0035] The process of adjusting the wheelbase of each group of traveling mechanisms 5 in each chassis device is as follows:

[0036] The controllers 54 in each chassis device synchronously control each steering motor 3 to drive the corresponding traveling mechanism 5 to rotate until the traveling direction of the traveling mechanism 5 is perpendicular to the corresponding platform plate 1. Then, the controllers 54 in each chassis device synchronously control each stepping motor 13 to drive the corresponding two platform plates 1 to open and close. Each platform plate 1 drives two traveling mechanisms 5 to move. Two of the traveling mechanisms 5 on different platform plates 1 form a group, and the other two traveling mechanisms 5 form a group. The two traveling mechanisms 5 in each group both move closer or both move apart until the distance between each group of traveling mechanisms in each chassis device reaches the preset distance. Then, the controllers 54 in each chassis device synchronously control each steering motor 3 to drive the corresponding traveling mechanism 5 to rotate until the traveling directions of all the traveling mechanisms 5 are the same, completing the wheelbase adjustment work.

Claims

1. A scissor-type agricultural chassis with adjustable wheelbase and chassis height, comprising a chassis device and a hinge, characterized in that: The chassis device includes a platform plate, an electric cylinder, a steering motor, a connecting frame and a traveling mechanism; a groove is formed in the middle of the platform plate, a convex plate is integrally formed at one end, a notch is formed at the other end, and hinge holes are formed at both ends of the platform plate at the convex plate and the notch; two platform plates are provided opposite to the groove of the platform plate and are horizontally and crosswise arranged, and the two platform plates are hinged by a hinge shaft one and are driven to open and close by a stepping motor; a component one composed of an electric cylinder, a steering motor, a connecting frame and a traveling mechanism is provided at both ends of each platform plate, wherein the piston rod of the electric cylinder faces upward and is fixed to the platform plate, the cylinder body of the electric cylinder is fixed to one end of the connecting frame, the housing of the steering motor is fixed to the other end of the connecting frame, the output shaft of the steering motor faces downward and drives the traveling mechanism to rotate; wherein, the depth of the groove is equal to half of the thickness of the platform plate, and both the steering motor and the stepping motor have a brake function; A plurality of the chassis devices are arranged in an array, and a plurality of chassis devices in each column form a component two; the connection between the chassis devices in the component two is as follows: the convex strips of the two platform plates of each chassis device are respectively embedded into the notches of the two platform plates of the adjacent chassis device and are hinged to the corresponding notches by a hinge shaft two; the connection between adjacent component twos is as follows: in each pair of chassis devices facing each other, the convex plates integrally formed on one pair of the facing platform plates are hinged by a hinge, and the ends with notches of the other pair of the facing platform plates are also hinged by a hinge.

2. The scissor-type agricultural chassis with adjustable wheelbase and chassis height according to claim 1, characterized in that: The traveling mechanism includes a wheel frame and wheels, the wheels and the wheel frame form a rotating pair and are driven by a hub motor, and the wheel frame is fixed to the output shaft of the steering motor.

3. The scissor-type agricultural chassis with adjustable wheelbase and chassis height according to claim 1, characterized in that: Mounting grooves are formed at both ends of the platform plate.

4. A working method of a scissor-type agricultural chassis with adjustable wheelbase and chassis height according to any one of claims 1 to 3, characterized in that: Specifically as follows: First, fix the agricultural machine to each platform plate, then adjust the height of each platform plate and the wheelbase of each group of traveling mechanisms in each chassis device, and then each traveling mechanism starts to work to drive the agricultural machine forward; Among them, the process of adjusting the height of each platform plate is as follows: According to the instructions of the upper computer, the controllers in each chassis device synchronously control the piston rods of the electric cylinders to extend or shorten. The piston rods of the electric cylinders drive the corresponding platform plates to drive the agricultural machine to lift and lower. The distance between the platform plate and the connecting frame changes until the height of the agricultural machine reaches the preset working height, and the height adjustment work is completed; The process of adjusting the wheelbase of each group of traveling mechanisms in each chassis device is as follows: The controllers in each chassis device synchronously control each steering motor to drive the corresponding traveling mechanism to rotate until the traveling direction of the traveling mechanism is perpendicular to the corresponding platform plate. Then, the controllers in each chassis device synchronously control each stepping motor to drive the corresponding two platform plates to open and close. Each platform plate drives two traveling mechanisms to move. Two of the traveling mechanisms on different platform plates are in one group, and the other two traveling mechanisms are in one group. The two traveling mechanisms in each group both approach or both separate until the distance between each group of traveling mechanisms in each chassis device reaches the preset distance. Then, the controllers in each chassis device synchronously control each steering motor to drive the corresponding traveling mechanism to rotate until the traveling directions of all the traveling mechanisms are the same, and the wheelbase adjustment work is completed.

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