Adjustable chassis suitable for mountain agriculture

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an adjustable chassis suitable for mountain agriculture, which comprises a chassis main body, an adjustable connecting piece, a walking wheel mechanism, a hydraulic lifting platform, a tilt angle sensor and a detection radar, the road holding force and adaptability are enhanced through the anti-skid wear-resistant tires and the adjustable shock absorption devices of the walking wheel mechanism. A hydraulic lifting platform is arranged in the middle of the chassis body and controlled by a controller according to signals of the tilt angle sensor so as to keep the chassis relatively horizontal. The detection radar at the front end scans the terrain in advance and transmits early warning information to the controller. The chassis can effectively avoid the problems of slipping, sinking and the like of agricultural machinery during mountain land operation, can keep a stable operation posture, improves the operation safety, adaptability and efficiency, and powerfully promotes the agricultural mechanization process of the Yunnan mountain land.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to an adjustable chassis suitable for mountainous area agriculture. BACKGROUND

[0002] The traditional agricultural machinery chassis is usually developed and designed based on plain or gentle hilly terrain, and when applied to Yunnan mountainous area, many problems come at once. In terms of chassis adjustment flexibility, the soil conditions in Yunnan mountainous area vary significantly from soft sandy loam to compact clay, and the slope changes a lot. Looking back at the traditional chassis, fixed structure is mostly adopted, and the ground clearance and ground contact area cannot be effectively adjusted according to the actual mountainous slope and soil conditions. For example, when working on a soft mountainous slope with high water content, the chassis cannot increase the ground contact area, and subsidence occurs from time to time, so the agricultural machine is trapped in place and cannot carry out work; when passing through a road section with protruding stones, the rigid ground clearance of the chassis causes the bottom of the agricultural machine to collide with obstacles repeatedly, and the key components are seriously damaged, which greatly limits the working range and efficiency of the agricultural machine; in terms of working stability, the precision requirement is high for mountainous area agricultural work. For example, in the work links such as seeding, fertilizing and harvesting, due to the difficulty of the traditional chassis in maintaining a stable posture under the complex terrain of mountainous area, the agricultural machine is prone to tilting and shaking during work, making it difficult to accurately control the seeding depth, fertilizing amount and harvesting height, and leading to a decline in work quality, which is contrary to the concept of modern mountainous area precision production, and cannot meet the growing demand for high-quality agricultural products.

[0003] The existing Chinese patent document CN 220281114 U discloses an all-directional four-wheel drive chassis, the lower end face of the bearing frame mechanism of the chassis has a support framework, the upper end face of the chassis has two servo motors on the two sides of the middle, and the side support mechanism of the front and rear end faces of the support framework has a hinge on the two side end faces. The four wheel hubs are respectively controlled by different walking motors, which can realize arbitrary angle turning in place, and the front side and the rear side of the two side end faces of the bearing frame main body are fixedly provided with shaft mounting frames, the upper end face of the shaft mounting frame is provided with a shock absorber mounting cap at the penetrating position, and a damping shock absorber is fixedly sleeved inside. It can adapt to the uneven terrain of Yunnan mountainous area, and enhance the driving stability, but the adjustment function is relatively single, mainly focusing on realizing dynamic leveling of the vehicle body through the suspension spring, and lacking comprehensive adjustment ability of the chassis height and ground contact area. In view of the special terrain conditions of Yunnan mountainous area, a new adjustable chassis that can adapt to complex terrain in all directions is designed, which can flexibly cope with steep slopes and rough road conditions when walking, and can flexibly adjust its own parameters according to different soil and slope, while ensuring high-precision stable posture during work. This is of great significance for the mechanization of Yunnan mountainous area agriculture. UTILITY MODEL CONTENTS

[0004] The utility model discloses a purpose lies in providing a kind of adjustable chassis suitable for mountainous agriculture, to solve the agricultural machinery in the background art proposed in the above multiple special conditions of Yunnan mountain, the fixed structure of agricultural machinery chassis cannot effectively adjust ground clearance and ground contact area according to actual mountain slope and soil condition, lead to agricultural machinery be trapped in situ and cannot carry out work, or key components are severely damaged, greatly limit the operation range and efficiency of agricultural machinery and many other problems.

[0005] To achieve the above technical purpose, achieve the above technical effect, the utility model is through following technical scheme implementation:

[0006] A kind of adjustable chassis suitable for mountainous agriculture, including chassis main body, adjustable connecting piece, walking wheel mechanism, hydraulic lifting platform, inclination sensor and detection radar;The four corners of the chassis main body are equipped with adjustable connecting piece, the adjustable connecting piece is connected with walking wheel mechanism ball hinge, the hydraulic lifting platform is equipped with four hydraulic cylinders for support;Multiple inclination sensors are distributed in front and back and left and right positions of chassis main body and hydraulic cylinder, and the detection radar is installed at the front end of the chassis main body;

[0007] The chassis main body includes several first connecting holes, for the connection of agricultural equipment and chassis main body, the front and back two groups are symmetrical along the central axis of chassis main body, and the upper end of the chassis main body is respectively equipped with four second connecting holes for the connection of hydraulic cylinder and third connecting holes for the connection of inclination sensor;

[0008] The adjustable piece includes inner lifting rod, outer sleeve and several fastening bolts;Lifting rod and outer sleeve are all equipped with four groups on the diagonal of chassis main body, and two two are mutually symmetrical;

[0009] The walking wheel mechanism includes hydraulic shock absorber, air spring, walking wheel tire and its walking wheel side cover, the inner side of walking wheel tire is connected with adjustable connecting piece through ball hinge connection, and the outer side of walking wheel tire is equipped with walking wheel side cover for sealing;

[0010] The lower end of the hydraulic lifting platform is connected with hydraulic cylinder and inclination sensor, the hydraulic cylinder is equipped with four groups at the four corners of platform, on the cross axis of platform, and the four inclination sensors are on the central axis of platform, and two two are symmetrical;

[0011] The detection radar is located at the front end of the central position of chassis main body, on the central axis of chassis main body, and the detection radar is connected with chassis main body through the adjusting support provided, and the front end of the chassis main body is provided with fixed mounting hole for the connection of adjusting support.

[0012] Further, the chassis body frame is trapezoidal structure as a whole, the front is narrow and the rear is wide, adjustable connecting pieces are installed at four corners of the chassis body, the adjustable connecting pieces realize adjustment of the chassis body ground clearance through an outer sleeve, an inner lifting rod and a fastening bolt, the other end of the connecting piece is connected with a walking wheel mechanism through a ball hinge, the walking wheel is provided with a composite pattern tire, and the walking wheel is provided with an air spring and a hydraulic shock absorber combined shock absorbing device.

[0013] Further, a detection radar is arranged at the front end center of the chassis body, and the detection radar is arranged on an adjusting support.

[0014] Further, a series of standard specification mounting holes with reasonable positions are reserved on the chassis body, so that various agricultural operation equipment can be quickly installed and disassembled.

[0015] Further, the adjustable connecting piece can be manually adjusted and automatically adjusted, and the ground clearance of the chassis body can be flexibly adjusted within a certain range.

[0016] Further, the four large hydraulic oil cylinders of the hydraulic lifting platform are symmetrically distributed, so as to provide stable support and accurate lifting control for the platform.

[0017] Further, the walking wheel is connected with the chassis body through the adjustable connecting piece, and the walking wheel and the adjustable connecting piece are connected through a ball hinge structure, so that the walking wheel can freely rotate and swing within a certain range.

[0018] Further, the air spring automatically adjusts air pressure according to load, and the hydraulic shock absorber adopts a double-cylinder design, and the inner cylinder is filled with high-performance damping oil.

[0019] Further, the inclination sensor selects a high-precision MEMS sensor to form a redundant monitoring system, and the measurement accuracy is as high as ±0.01°.

[0020] Further, the adjusting support is integrated with an electric driving system, a small DC motor is selected as the motor, the motor is decelerated and torque is increased through a speed reducer, and then the motor drives the mounting plate to realize angle adjustment through spherical rotation.

[0021] Further, the shock absorbing device is arranged in the walking wheel mechanism.

[0022] The utility model discloses the beneficial effect:

[0023] The utility model discloses a adjustable connecting piece is designed in the chassis main body four corners, these connecting pieces contain outer sleeve, inner lifting rod and fastening bolt, make chassis main body can be adjusted in 15-60 centimeter range ground clearance. Allow chassis main body in the mountainous environment of significant variation in elevation, flexibly improve or reduce the ground clearance. When encountering soft or muddy topography, can lower chassis main body to increase the wheel ground area, disperses weight to prevent sinking. When facing gravel or protruding obstacles, can increase chassis main body to avoid the damage of bottom scratch to the key mechanical parts. This adjustment not only enhances the passability and adaptability, also promotes the overall stability of equipment, because the walking wheel of ball hinge structure can automatically adjust its ground angle on uneven terrain, ensures the continuous ground grip, prevents vehicle rollover or out of control.

[0024] The hydraulic lifting platform installed on the chassis main body works with the inclination sensor to provide excellent dynamic stability function. The hydraulic platform realizes precise lifting action through large hydraulic cylinder, dynamically adjusts the posture of chassis main body. When the sensor detects ground inclination, immediately feedback to the control system, the control system responds quickly, adjusts the platform height through the hydraulic cylinder, restores the equipment level. This mechanism not only effectively prevents equipment tilt in mountainous environment, reduces the precision error caused by vibration or tilt in operation process, but also ensures the stability and consistency of operation parameters such as depth, quantity and angle in the process of seeding, fertilizing and harvesting. This high-precision posture adjustment function, combined with the accurate monitoring of ±0.01° provided by the inclination sensor, helps to improve the quality and efficiency of agricultural operation, and meets the needs of modern fine agricultural production.

[0025] The double-cylinder hydraulic shock absorber and the air spring with automatic pressure adjustment integrated inside the walking wheel constitute a high-efficiency combined shock absorption system. The hydraulic shock absorber uses the flow of high-performance damping oil inside to generate strong damping force through double-cylinder design, absorbing the vibration and impact of the vehicle in the process of driving. The air spring adjusts the pressure according to the load change, further optimizing the damping effect. Such design not only significantly reduces the vibration impact on the driver on irregular mountainous terrain, improves the operation comfort, but also reduces the wear and tear of the chassis main body and equipment, prolongs the service life of the agricultural machinery. More importantly, it reduces the destructive pressure of the wheels on the soil, protects the surface farmland and supports sustainable agricultural practices.

[0026] The front-mounted detection radar adjusts the angle through an electronic adjustment bracket, can actively scan the terrain in front, and identifies slope changes and potential obstacles in advance. The radar system quickly acquires environmental data and transmits information to the chassis body controller, allowing the system to intelligently adjust chassis body parameters when facing sudden terrain changes, such as raising the chassis body in advance to avoid obstacles. This real-time warning and adaptive adjustment greatly improves operational safety, avoids vehicle damage or operational risks caused by terrain changes, optimizes operational paths and strategies, and improves overall operational efficiency. For mechanized operations, especially in continuous day and night operations, this function is particularly important as it reduces human intervention and ensures the continuity and safety of operations.

[0027] Of course, implementing any product of the present application does not necessarily require all the advantages described above to be achieved simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0029] Figure 1 A schematic view of the adjustable chassis suitable for Yunnan mountainous agriculture according to the present application;

[0030] Figure 2 A schematic view of the chassis body according to the present application;

[0031] Figure 3 A schematic view of the walking wheel mechanism according to the present application;

[0032] Figure 4 A schematic view of the spherical hinge structure between the adjustable connecting piece and the walking wheel according to the present application;

[0033] Figure 5 A schematic view of the hydraulic lifting platform and multiple inclination sensors according to the present application;

[0034] Figure 6 A schematic view of the detection radar according to the present application;

[0035] In the drawings, the components represented by each reference numeral are listed as follows:

[0036] 1, chassis body; 2, adjustable connecting piece; 3, walking wheel mechanism; 201, first connecting hole; 202, second connecting hole; 203, third connecting hole; 301, walking wheel tire; 302, hydraulic shock absorber; 303, air spring; 304, walking wheel side cover; 401, inner lifting rod; 402, outer sleeve; 403, fastening bolt; 404, spherical hinge connecting piece; 501, hydraulic lifting platform; 502, hydraulic oil cylinder; 503, inclination sensor; 601, detection radar; 602, spherical rotating device; 603, adjusting support; 604, mounting support. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] Embodiment 1

[0039] The adjustable chassis suitable for mountainous agriculture described in this embodiment comprises a chassis body 1, an adjustable connecting piece 2, a walking wheel mechanism 3, a hydraulic lifting platform 501, an inclination sensor 503 and a detection radar 601. The chassis body 1 is provided with adjustable connecting pieces 2 at the four corners. The adjustable connecting pieces 2 are connected with the walking wheel mechanism 3 through spherical hinges. The hydraulic lifting platform 501 is provided with four hydraulic oil cylinders 502 for support. A plurality of inclination sensors 503 are distributed at the front, back, left and right positions of the chassis body 1 and the hydraulic oil cylinders 502. The detection radar 601 is installed at the front end of the center of the chassis body 1.

[0040] The chassis body 1 comprises a plurality of first connecting holes 201 for connecting agricultural equipment with the chassis body 1. The front and back two groups are symmetrically arranged along the central axis of the chassis body 1. The upper end of the chassis body 1 is respectively provided with four second connecting holes 202 for connecting the hydraulic oil cylinders 502 and three connecting holes 203 for connecting the inclination sensors 503.

[0041] The adjustable connecting piece comprises an inner lifting rod 401, an outer sleeve 402 and a plurality of fastening bolts 403. The lifting rod and the outer sleeve 402 are each provided with four groups of fastening bolts 403 arranged on the diagonal lines of the chassis body 1 and symmetrically arranged with each other.

[0042] The walking wheel mechanism 3 comprises a hydraulic shock absorber 302, an air spring 303, a walking wheel tire 301 and a walking wheel side cover 304, the inner side of the walking wheel tire 301 is connected with the adjustable connecting piece 2 through a ball hinge, and the outer side of the walking wheel tire 301 is provided with the walking wheel side cover 304 for sealing;

[0043] The lower end of the hydraulic lifting platform 501 is connected with a hydraulic oil cylinder 502 and an inclination sensor 503, the hydraulic oil cylinder 502 is provided with four groups of adjustable connecting pieces 2 at the four corners of the platform and on the cross axis of the platform, and the four inclination sensors 503 are arranged at the central axis of the platform and symmetrically arranged in pairs.

[0044] The detection radar 601 is arranged at the front end of the chassis main body 1 and on the central axis of the chassis main body 1, the detection radar 601 is connected with the chassis main body 1 through the adjusting bracket 603, and the front end of the chassis main body 1 is provided with a fixed mounting hole for connecting the adjusting bracket 603.

[0045] Embodiment 2

[0046] As shown in Figures 1-6

[0047] The adjustable chassis suitable for Yunnan mountainous areas in the embodiment comprises a chassis main body 1, the chassis main body frame is trapezoidal, the front is narrow and the rear is wide, the center of gravity of the agricultural machine can be more reasonably transferred backward when climbing, which is a very stable structure, and the chassis 1 can be assembled with various sizes and types of agricultural equipment, high-strength bolts are arranged at the four corners of the chassis 1 and connected with the adjustable connecting pieces 2, the adjustable connecting pieces 2 can realize the adjustment of the chassis ground clearance through the design of the outer sleeve and the inner lifting rod, and high-strength bolts are used to ensure the connection and fastening and bear various stresses during operation.

[0048] The four adjustable connecting pieces 2 are connected with the four walking wheels 3 through the ball hinge connecting piece 404, the ball hinge connecting piece 404 can allow the walking wheels 3 to flexibly rotate in multiple degrees of freedom relative to the adjustable connecting pieces, the hydraulic shock absorbers 302 and the air springs 303 are arranged in the four walking wheels 3, the walking wheel side cover 304 is assembled on the outer side of the walking wheel, which can effectively block the influence of dust on the service life of the shock absorbing device, the hydraulic shock absorber 302 can quickly and effectively absorb and dissipate high-frequency vibration energy from the ground by virtue of the damping oil liquid in the hydraulic shock absorber 302, the air spring 303 can provide buffering for low-frequency and large-amplitude vibration by using the compressibility, the air spring 303 can flexibly stretch and contract, and the impact force can be gently resolved, and the two are arranged in the tire 301, so that the vibration can be avoided from being directly transmitted to the chassis and the agricultural machine body, and full-band shock absorption protection is formed.

[0049] ​The lower end of the hydraulic lifting platform 501 is connected with four hydraulic oil cylinders 502 and four inclination sensors 503 through high-strength bolts, the four large hydraulic oil cylinders 502 are evenly distributed at the four corners of the hydraulic lifting platform 501, and symmetrical layout provides balanced lifting force for the hydraulic lifting platform 501, effectively preventing tilting, each hydraulic oil cylinder 502 acts on two adjacent inclination sensors 503, and the four inclination sensors 503 are located at the front, rear, left and right of the chassis body 1, and monitor the posture of the chassis body in all directions, and can timely feedback to the hydraulic oil cylinder 502, so as to timely adjust the extension amount of the oil cylinder, and further adjust the posture of the lifting platform 501.

[0050] The detection radar 601 is installed on the adjusting support 603, and then is fixed on the mounting support 604 at the front end of the chassis body 1 through high-strength bolts, and the detection radar 601 can cover a certain sector area in the horizontal direction, and timely adjusts the detection direction through the spherical rotating device 602.

[0051] Working principle: the chassis body 1 is a trapezoidal overall frame structure, adjustable connecting pieces 2 are installed at the four corners of the chassis body 1, the connection of the adjustable connecting pieces 2 and the walking wheel mechanism 3 is realized through spherical hinge connection, the walking wheels 3 are all equipped with hydraulic shock absorbers 302 and air springs 303, so that the chassis body 1 and the agricultural equipment are prevented from shaking, the hydraulic lifting platform 501 is supported by the four large hydraulic oil cylinders 502 at the upper end of the chassis body 1, and the stability of the lifting platform is realized through the cooperation of the hydraulic oil cylinder 502 and the inclination sensor 503, the chassis body has the characteristics of strong adaptability, strong adjustment capacity, accurate operation, simultaneously adding an intelligent risk avoidance link, and can work stably for a long time in the Yunnan mountain environment.

[0052] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present application, many modifications and changes can be made. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. An adjustable chassis suitable for use in mountain agriculture, characterized by: Including chassis body (1), adjustable connecting piece (2), walking wheel mechanism (3), hydraulic lifting platform (501), inclination sensor (503) and detection radar (601); The four corners of the chassis body (1) are provided with adjustable connecting piece (2), the adjustable connecting piece (2) is connected with walking wheel mechanism (3) ball hinge, the hydraulic lifting platform (501) is provided with four hydraulic cylinders (502) for supporting; Multiple groups of inclination sensors (503) are distributed in the front and rear positions of the chassis body (1) and the hydraulic cylinders (502), and the detection radar (601) is installed at the front end of the chassis body (1).

2. The adjustable chassis suitable for mountain agriculture as claimed in claim 1, wherein: The chassis body (1) includes a plurality of first connecting holes (201) for connecting agricultural equipment and the chassis body (1), and the front and rear two groups are symmetrically arranged along the central axis of the chassis body (1); the upper end of the chassis body (1) is respectively provided with four groups of second connecting holes (202) for connecting the hydraulic cylinders (502) and third connecting holes (203) for connecting the inclination sensors (503).

3. The adjustable chassis suitable for mountain agriculture as claimed in claim 1 wherein: The adjustable connecting piece (2) includes an inner lifting rod (401), an outer sleeve (402) and a plurality of fastening bolts (403); the lifting rod and the outer sleeve (402) are each provided with four groups of holes on the diagonal lines of the chassis body (1) and are symmetrically arranged.

4. The adjustable chassis suitable for mountain agriculture as claimed in claim 1 wherein: The walking wheel mechanism (3) includes a hydraulic shock absorber (302), an air spring (303), a walking wheel tire (301) and a walking wheel side cover (304), the inner side of the walking wheel tire (301) is connected with the adjustable connecting piece (2) through a ball hinge, and the outer side of the walking wheel tire (301) is provided with a walking wheel side cover (304) for sealing.

5. The adjustable chassis suitable for mountain agriculture as claimed in claim 1 wherein: The lower end of the hydraulic lifting platform (501) is connected with the hydraulic cylinders (502) and the inclination sensors (503), the hydraulic cylinders (502) are provided with four groups of holes at the four corners of the platform and on the cross axis of the platform, and the four inclination sensors (503) are arranged on the central axis of the platform and symmetrically arranged.

6. The adjustable chassis suitable for mountain agriculture as claimed in claim 1 wherein: The detection radar (601) is located at the front end of the chassis body (1) and on the central axis of the chassis body (1), the detection radar (601) is connected with the chassis body (1) through the adjusting support (603), and the front end of the chassis body (1) is provided with a fixed mounting hole for connecting the adjusting support (603).

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