Automatic leveling wheel type chassis of whole-rod type sugarcane combine harvester

Abstract

The utility model provides an automatic leveling wheel type chassis of a whole-rod type sugarcane combine harvester. A front axle assembly and a rear axle assembly below the automatic leveling wheel type chassis are respectively connected with a rack above the automatic leveling wheel type chassis in a pin shaft hinging manner; a front leveling oil cylinder and a rear leveling oil cylinder are arranged between the two sides of the suspension of the front axle assembly and the rack and between the two sides of the suspension of the rear axle assembly and the rack respectively for connection. The single computer control module adjusts the lifting actions of the two front leveling oil cylinders and the two rear leveling oil cylinders in real time according to the left and right inclination angle data of the front end and the rear end of the rack and the pressure data of the leveling oil cylinders, so that the chassis can be adaptively adjusted in real time in the walking process on the fluctuating ground. And the front and rear ends of the rack are always kept horizontal in the left-right direction. According to the whole-rod type sugarcane combine harvester applying the chassis, the adaptability of the whole-rod type sugarcane combine harvester to the fluctuating ground can be improved, so that the driving difficulty of the whole-rod type sugarcane combine harvester during walking and operation on the fluctuating ground is reduced, the rollover accident of the whole harvester can be effectively avoided, and the driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the chassis of a whole-stalk sugarcane combine harvester, specifically an automatically leveling wheeled chassis of a whole-stalk sugarcane combine harvester, belonging to the technical field of agricultural machinery equipment. Background Technique

[0002] A sugarcane combine harvester is an integrated machine that can complete a series of operations such as sugarcane top cutting, cane cutting, and leaf stripping in a sugarcane field. The existing sugarcane combine harvesters are mainly divided into two categories: cut-type sugarcane combine harvesters and whole-stalk sugarcane combine harvesters. Among them, the whole-stalk sugarcane combine harvester is more suitable for walking on plots with different terrains and slopes due to its compact structure and small size. Moreover, when harvesting, the whole sugarcane stalk can be retained, reducing sugar loss and facilitating the preservation of raw sugarcane. Therefore, it is more in line with the actual situation of sugarcane planting and harvesting in China and is more widely used in China.

[0003] Since sugarcane planting in China is mostly distributed in hilly areas, the terrain of some sugarcane planting areas is complex and the ground is uneven. When a sugarcane combine harvester with an ordinary chassis walks on the ground with a large height difference between the left and right, the driving difficulty is high and the safety is poor. If care is not taken, a rollover accident may occur, which is not conducive to carrying out sugarcane machine harvesting operations. Therefore, we have configured an automatically leveling wheeled chassis for the whole-stalk sugarcane combine harvester to improve the adaptability of the whole-stalk sugarcane combine harvester to the undulating ground, thereby reducing the driving difficulty of the whole-stalk sugarcane combine harvester when walking and operating on the undulating ground, improving driving safety, and at the same time facilitating the carrying out of sugarcane machine harvesting operations and increasing the sugarcane machine harvesting rate. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatically leveling wheeled chassis of a whole-stalk sugarcane combine harvester. The whole-stalk sugarcane combine harvester applying this chassis can improve the adaptability of the whole-stalk sugarcane combine harvester to the undulating ground, reduce the driving difficulty and improve the driving safety.

[0005] The specific technical solution of the utility model is as follows:

[0006] An automatic leveling wheeled chassis for an integral-rod sugarcane combine harvester, which is provided with a frame. The main body of the frame is a horizontally arranged planar frame formed by welding multiple frame beams. At the middle position of the front end on the bottom side of the frame, a horizontally transverse front axle pin is fixedly installed. A front axle assembly that can rotate and swing along the front axle pin is hinged on the front axle pin. The front axle assembly adopts a portal suspension. The portal suspension is provided with an upper crossbeam and two left and right portal columns. The middle part of the upper crossbeam is hinged to the front axle pin through an upward-projecting hinge ear. The outer sides of the lower ends of the two left and right portal columns are respectively connected with two left and right front wheels. On the sides of the two left and right portal columns, two vertically arranged front leveling cylinders are respectively installed. The tail ends of the cylinders of the two front leveling cylinders are respectively hinged to the middle parts of the columns of the two left and right portal columns. The head ends of the piston rods of the two front leveling cylinders are respectively hinged to the frame beams at the corresponding positions on the left and right sides of the frame. At the middle position of the rear end on the bottom side of the frame, a horizontally transverse rear axle pin is fixedly installed. A rear axle assembly that can rotate and swing along the rear axle pin is hinged on the rear axle pin. The rear axle assembly adopts an inverted T-shaped suspension. The inverted T-shaped suspension is provided with a vertical beam and a lower crossbeam. The upper end of the vertical beam is hinged to the rear axle pin through an upward-projecting hinge ear. The two left and right ends of the lower crossbeam are respectively connected with two left and right rear wheels. On the left and right sides of the vertical beam, two vertically arranged rear leveling cylinders are respectively installed. The tail ends of the cylinders of the two rear leveling cylinders are respectively hinged to the beam bodies at the left and right ends of the lower crossbeam. The head ends of the piston rods of the two rear leveling cylinders are respectively hinged to the frame beams at the corresponding positions on the left and right sides of the frame.

[0007] A first angle sensor for detecting the left and right inclination angles between the front end of the frame and the ground plane and a second angle sensor for detecting the left and right inclination angles between the rear end of the frame and the ground plane are provided above the frame. The frame is also equipped with a hydraulic system and a single-chip control module. The hydraulic system is provided with oil circuits separately connected to each front leveling cylinder and each rear leveling cylinder. Each front leveling cylinder and each rear leveling cylinder are also respectively provided with a pressure sensor. Each pressure sensor, the first angle sensor, and the second angle sensor are all provided with circuits connected to the single-chip control module. The single-chip control module is provided with a circuit connected to the hydraulic system. The single-chip control module controls the lifting actions of each front leveling cylinder and each rear leveling cylinder separately through the hydraulic system.

[0008] The advantages of the automatic leveling wheeled chassis of the present utility model are as follows: The front axle assembly and the rear axle assembly under the chassis are respectively connected to the upper frame by means of pin joints. Moreover, front leveling cylinders and rear leveling cylinders are respectively provided between the two sides of the suspension of the front axle assembly and the two sides of the suspension of the rear axle assembly and the frame for connection. The single-machine control module adjusts the lifting actions of the two front leveling cylinders and the two rear leveling cylinders in real time according to the left and right inclination angle data at the front and rear ends of the frame and the pressure data of the leveling cylinders, so that the chassis can be adjusted adaptively in real time during the walking process on the undulating ground, ensuring that the front and rear ends of the frame always remain horizontal in the left and right directions. For the whole-stalk sugarcane combine harvester applying this chassis, the adaptability of the whole-stalk sugarcane combine harvester to the undulating ground can be improved, thereby reducing the driving difficulty when walking and operating on the undulating ground, effectively avoiding the accident of the whole machine tipping over, improving the driving safety, facilitating the carrying out of sugarcane machine harvesting operations, and increasing the sugarcane machine harvesting rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. is a three-dimensional structural schematic diagram of the automatic leveling wheeled chassis after removing the left rear wheel (removing the left rear wheel is convenient for seeing the connection structure between the suspension beam of the rear axle assembly and the frame).

[0010] Figure 2 FIG. is a left side view of the automatic leveling wheeled chassis after removing the left rear wheel.

[0011] Figure 3 FIG. is a rear side view of the automatic leveling wheeled chassis.

[0012] In the figures: 1 - frame, 2 - front axle pin, 3 - front axle assembly, 3.1 - upper crossbeam, 3.2 - door post, 3.3 - front wheel, 4 - leveling cylinder, 5 - rear axle pin, 6 - rear axle assembly, 6.1 - vertical beam, 6.2 - lower crossbeam, 6.3 - rear wheel, 6.4 - diagonal tie rod, 7 - rear leveling cylinder, 8 - first angle sensor, 9 - second angle sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following further describes the present utility model with reference to the accompanying drawings. In the description of the present utility model, the orientation terms of "front", "rear", "left", and "right" are defined based on the perspective of the driver of the whole-stalk sugarcane combine harvester.

[0014] As Figures 1-3As shown in the figure, the automatic leveling wheeled chassis is provided with a frame 1. The main body of the frame 1 is a horizontally arranged planar frame formed by welding multiple frame beams. At the middle position of the front end on the bottom side of the frame 1, a horizontally transverse front axle pin 2 is fixedly installed. A front axle assembly 3 that can rotate and tilt along the front axle pin 2 is hinged on the front axle pin 2. The front axle assembly 3 adopts a portal suspension. The portal suspension is provided with an upper beam 3.1 and two left and right portal columns 3.2. The middle part of the upper beam 3.1 is hinged to the front axle pin 2 through an upwardly protruding hinge ear. The outer sides of the lower ends of the two left and right portal columns 3.2 are respectively connected with two left and right front wheels 3.3. On the sides of the two left and right portal columns 3.2, two left and right vertically arranged front leveling cylinders 4 are respectively installed. The tail ends of the cylinders of the two front leveling cylinders 4 are respectively hinged to the middle parts of the columns of the two left and right portal columns 3.2. The head ends of the piston rods of the two front leveling cylinders 4 are respectively hinged to the frame beams at the corresponding positions on the left and right sides of the frame 1. At the middle position of the rear end on the bottom side of the frame 1, a horizontally transverse rear axle pin 5 is fixedly installed. A rear axle assembly 6 that can rotate and tilt along the rear axle pin 5 is hinged on the rear axle pin 5. The rear axle assembly 6 adopts an inverted T-shaped suspension. The inverted T-shaped suspension is provided with a vertical beam 6.1 and a lower cross beam 6.2. The upper end of the vertical beam 6.1 is hinged to the rear axle pin 5 through an upwardly protruding hinge ear. The two left and right ends of the lower cross beam 6.2 are respectively connected with two left and right rear wheels 6.3. On the left and right sides of the vertical beam 6.1, two left and right vertically arranged rear leveling cylinders 7 are respectively installed. The tail ends of the cylinders of the two rear leveling cylinders 7 are respectively hinged to the beam bodies at the left and right ends of the lower cross beam 6.2. The head ends of the piston rods of the two rear leveling cylinders 7 are respectively hinged to the frame beams at the corresponding positions on the left and right sides of the frame 1.

[0015] Above the frame 1, a first angle sensor 8 for detecting the left and right inclination angles between the front end of the frame 1 and the ground plane and a second angle sensor 9 for detecting the left and right inclination angles between the rear end of the frame 1 and the ground plane are provided. The frame 1 is also equipped with a hydraulic system and a single-chip microcomputer control module. The hydraulic system is provided with oil circuits separately connected to each front leveling cylinder 4 and each rear leveling cylinder 7. Each front leveling cylinder 4 and each rear leveling cylinder 7 are also respectively provided with pressure sensors. Each pressure sensor, the first angle sensor 8, and the second angle sensor 9 are all provided with circuits connected to the single-chip microcomputer control module. The single-chip microcomputer control module is provided with a circuit connected to the hydraulic system. The single-chip microcomputer control module controls the lifting actions of each front leveling cylinder 4 and each rear leveling cylinder 7 separately through the hydraulic system.

[0016] Further, both the first angle sensor 8 and the second angle sensor 9 adopt single-axis gyroscopes. The first angle sensor 8 is installed at the position on the top surface of the front end of the frame 1 directly above the front axle pin 2, and the second angle sensor 9 is installed at the position on the top surface of the rear end of the frame 1 directly above the rear axle pin 5.

[0017] Further, the pressure sensor adopts a diffused silicon pressure transmitter for checking the operating pressure and limit position of the oil cylinder, and each pressure sensor is respectively installed on the hydraulic pipeline of the corresponding leveling oil cylinder.

[0018] Further, left and right diagonal tie rods 6.4 are respectively connected between the beam body of the vertical beam 6.1 and the beam bodies at the left and right ends of the lower cross beam 6.2 of the inverted T-shaped suspension of the rear axle assembly 6 for reinforcement.

[0019] The working principle of this automatic leveling wheeled chassis is as follows:

[0020] Since the front axle assembly 3 and the rear axle assembly 6 under this chassis are respectively connected to the upper frame 1 by means of pin joints, and leveling oil cylinders 4 are respectively arranged between the two sides of the suspensions of the front axle assembly 3 and the two sides of the suspensions of the rear axle assembly 6 and the frame, when this chassis travels on the ground: the left and right inclination angles of the front end of the frame 1 are detected in real time by the first angle sensor 8, the pressure sensors of the two front leveling oil cylinders 4 respectively detect the pressure data of the two front leveling oil cylinders 4 and transmit them to the single-chip microcomputer control module in real time, and the single-chip microcomputer control module adjusts the lifting actions of the two front leveling oil cylinders 4 in real time according to the left and right inclination angle data of the front end of the frame 1 and the pressure data of the two front leveling oil cylinders 4, so that the front end of the frame 1 always remains horizontal in the left and right directions; at the same time, the left and right inclination angles of the rear end of the frame 1 are detected in real time by the second angle sensor 9, the pressure sensors of the two rear leveling oil cylinders 7 respectively detect the pressure data of the two rear leveling oil cylinders 7 and transmit them to the single-chip microcomputer control module in real time, and the single-chip microcomputer control module adjusts the lifting actions of the two rear leveling oil cylinders 4 in real time according to the left and right inclination angle data of the rear end of the frame 1 and the pressure data of the two rear leveling oil cylinders 7, so that the rear end of the frame 1 always remains horizontal in the left and right directions. In this way, the entire chassis can be adjusted adaptively in real time during the process of traveling on the undulating ground, ensuring that the front and rear ends of the frame always remain horizontal in the left and right directions.

[0021] The above illustrations are only typical embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic leveling wheeled chassis for a whole-stem sugarcane combine harvester, characterized in that: The automatic leveling wheeled chassis is provided with a frame (1), the main body of the frame (1) being a horizontally arranged plane frame formed by welding a plurality of frame beams; a horizontally transverse front axle pin shaft (2) is fixedly mounted at a position centered on the left and right sides of the front end of the frame (1); a front axle assembly (3) that can rotate and tilt along the front axle pin shaft (2) is hingedly connected to the front axle pin shaft (2); the front axle assembly (3) adopts a gate-shaped suspension, and the gate-shaped suspension is provided with an upper gate beam (3.1) and left and right gate pillars (3.2). The middle part of the upper door beam (3.1) is hinged to the front axle pin (2) through an upwardly extending hinge ear, and the lower ends of the left and right door pillars (3.2) are respectively connected to the left and right front wheels (3.3). The sides of the left and right door pillars (3.2) are respectively provided with left and right vertically arranged front leveling cylinders (4), and the rear ends of the cylinder barrels of the two front leveling cylinders (4) are respectively hinged to the middle parts of the columns of the left and right door pillars (3.2). The two front leveling cylinders (4) The piston rod heads are respectively hinged to the frame beams at corresponding positions on the left and right sides of the frame (1); a horizontal and transverse rear axle pin (5) is fixedly mounted on the bottom side of the frame (1) at the left and right center of the rear end, and a rear axle assembly (6) that can rotate and tilt along the rear axle pin (5) is hingedly mounted on the rear axle pin (5); the rear axle assembly (6) adopts an inverted T-shaped suspension, and the inverted T-shaped suspension is provided with a vertical beam (6.1) and a lower cross beam (6.2); the upper end of the vertical beam (6.1) is connected to the lower cross beam (6.2) through an upwardly extending hinge ear. The rear axle pin (5) is hinged, the left and right ends of the lower cross beam (6.2) are respectively connected to the left and right rear wheels (6.3), and the left and right sides of the vertical beam (6.1) are respectively provided with left and right vertically arranged rear leveling cylinders (7), the cylinder barrel tail ends of the two rear leveling cylinders (7) are respectively hinged to the beam bodies at the left and right ends of the lower cross beam (6.2), and the piston rod head ends of the two rear leveling cylinders (7) are respectively hinged to the frame beams at corresponding positions on the left and right sides of the frame (1); A first angle sensor (8) for detecting the left and right inclination angle between the front end of the frame (1) and the ground plane and a second angle sensor (9) for detecting the left and right inclination angle between the rear end of the frame (1) and the ground plane are arranged above the frame (1). The frame (1) is also provided with a hydraulic system and a single-machine control module. The hydraulic system is provided with an oil circuit which is separately connected to each front leveling cylinder (4) and each rear leveling cylinder (7). Each front leveling cylinder (4) and each rear leveling cylinder (7) is also provided with a pressure sensor. Each pressure sensor and the first angle sensor (8) and the second angle sensor (9) are provided with a circuit which is connected to the single-machine control module. The single-machine control module is provided with a circuit which is connected to the hydraulic system. The single-machine control module controls the lifting and lowering actions of each front leveling cylinder (4) and each rear leveling cylinder (7) separately through the hydraulic system.

2. The automatic leveling wheeled chassis of the whole-stem sugarcane combine harvester according to claim 1 is characterized in that: The first angle sensor (8) and the second angle sensor (9) are both single-axis gyroscopes; the first angle sensor (8) is mounted on a top surface of the front end of the frame (1) at a position directly above the front axle pin (2); and the second angle sensor (9) is mounted on a top surface of the rear end of the frame (1) at a position directly above the rear axle pin (5).

3. The automatic leveling wheeled chassis of the whole-stalk sugarcane combine harvester according to claim 1 is characterized in that: The pressure sensor adopts a diffused silicon pressure transmitter for checking the action pressure and limit position of the oil cylinder, and each pressure sensor is respectively installed on the hydraulic pipeline of the corresponding leveling oil cylinder.

4. The automatic leveling wheeled chassis of the whole-stem sugarcane combine harvester according to claim 1 is characterized in that: The inverted T-shaped suspension of the rear axle assembly (6) is reinforced by respectively connecting two left and right diagonal tie rods (6.4) between the beam body of the vertical beam (6.1) and the beam bodies at the left and right ends of the lower cross beam (6.2).

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