Agricultural field working chassis and agricultural field working machine

Abstract

This invention discloses a farmland operation chassis and farmland operation machinery, belonging to the technical field of farmland operation machinery. The farmland operation chassis includes: a drive chassis, a front suspension device, a center mounting device, and a rear suspension device. The drive chassis is used to mount the wheels; the front suspension device is used to mount and raise / lower front-mounted agricultural implements; the center mounting device is used to mount and raise / lower mid-mounted agricultural implements; and the rear suspension device is used to mount and raise / lower rear-mounted agricultural implements. The farmland operation machinery includes a cab, a farmland operation chassis, and wheels. The cab is mounted at the front end of the drive chassis of the farmland operation chassis, and the wheels are mounted on the drive chassis. According to different operational needs, corresponding agricultural implements can be mounted using the front suspension device, center mounting device, and rear mounting device, thereby avoiding the need to repeatedly purchase field operation power devices for different operational stages, reducing agricultural production costs, and facilitating the sharing of farmland and crop information across different operational stages.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to an agricultural machinery chassis and agricultural machinery. Background Technology

[0002] With the continuous rise in labor costs and the increasing shortage of skilled agricultural machinery operators in my country's agricultural production, the demand for mechanized and intelligent equipment in agricultural production is becoming increasingly urgent. To address this challenge, the industry has begun researching technologies such as multi-functional universal chassis, autonomous navigation and unmanned driving, and intelligent sensing in complex environments. It is also developing devices for intelligent sowing, intelligent plant protection, and intelligent residual film recycling, striving to achieve precise perception of all elements of information in sowing, chemical control, pest and disease prevention, and residual film recycling, supporting operational quality supervision and production decision-making. Simultaneously, breakthroughs are being made in key technologies such as combined navigation for row-by-row operations, autonomous collaborative operations, and intelligent diagnosis and decision-making to build unmanned production systems, promote data sharing and intelligent decision-making across multiple stages, and provide technical support for fully unmanned and collaborative operations in agricultural production. The aim is to save labor, improve operational efficiency, increase farmers' income and production, and promote sustainable agricultural development.

[0003] While my country has made significant progress in agricultural mechanization technology and equipment, the integration of agricultural machinery with information technology remains insufficient, resulting in substantial gaps in operational efficiency and precision. For example, automated technologies for mulching and pipe laying, as well as intelligent detection and information management of sowing quality, need further improvement. In plant protection, developed countries like the United States widely employ large-scale ground-based plant protection machinery, combined with information technology to achieve precise, highly targeted, and quantitative pesticide application, with an average pesticide utilization rate exceeding 50%. In contrast, my country's plant protection equipment is relatively backward, resulting in low effective utilization of pesticide solutions, large application volumes, and lower plant protection effectiveness and benefits. Regarding residual plastic film recycling, while existing mechanized recycling technologies have made some progress, the low level of mechanical intelligence leads to low recycling rates, high impurity content in residual film, and difficulties in resource utilization. In terms of performance and efficiency, compared with advanced foreign machinery, similar Chinese products still lag behind in performance indicators such as operating speed and effectiveness. For instance, large foreign machinery operates at high speeds and can complete large-scale operations in a short time.

[0004] The most prominent technological gap lies in functional integration: Developed countries' machinery increasingly emphasizes functional integration and multi-tasking, with a single machine or work platform capable of attaching multiple devices to complete various tasks, resulting in high equipment utilization. In contrast, my country's multi-functional agricultural machinery is mainly concentrated in tillage and field management, such as multi-functional tillers, garden tillers, and agricultural drones. Other operational stages still require multiple machines to complete all tasks, increasing operating costs and labor intensity.

[0005] Therefore, there is an urgent need to develop a highly integrated intelligent agricultural operation platform and its control method to solve the problems of single-function equipment, low equipment utilization, and high costs and heavy labor burden caused by the need for multiple machines to cooperate in multiple stages of agricultural production in my country. This will improve the precision and intelligence of farmland production equipment, enhance equipment utilization and labor productivity, build a more scientific, efficient and optimized agricultural modernization production technology system, comprehensively promote high-quality agricultural development, and drive the overall technological progress of agricultural production in my country. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a farmland operation chassis and farmland operation machinery. According to different operation needs, the corresponding agricultural machinery and implements can be attached using the front suspension device, the middle attachment device and the rear attachment device, thereby avoiding the need to repeatedly purchase field operation power devices for different operation stages, reducing agricultural production costs, and facilitating the sharing of farmland and crop information for different operation stages.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention discloses a farmland operation chassis, comprising: A drive chassis, wherein the drive chassis is used to mount the wheels; A front suspension device, used for mounting and raising / lowering front-mounted agricultural implements; A center-mounted mounting device, used for mounting and raising / lowering center-mounted agricultural implements; And a rear suspension device, which is used to install and raise rear-mounted agricultural implements.

[0008] In one embodiment, the front suspension device has a four-link lifting structure; The middle mounting device has a parallel four-bar lifting structure; The rear suspension device has a four-link lifting structure.

[0009] In one embodiment, a rear crossbeam is detachably connected to the drive chassis, and the rear suspension device can be mounted on the drive chassis either forward or backward via the rear crossbeam to enable the rear-mounted agricultural implement to be installed at a low or high position.

[0010] In one embodiment, the front suspension device includes a left front suspension mechanism and a right front suspension mechanism symmetrically arranged along the width direction of the drive chassis. Each of the left and right front suspension mechanisms includes a front suspension rod, a front tow bar, and a front telescopic cylinder. One end of the front suspension rod is hinged to the drive chassis, and the other end of the front suspension rod is used for the front-mounted agricultural implement to be hinged. The front tow bar is located below the front suspension rod, and there is an angle between the front tow bar and the front suspension rod. One end of the front tow bar is hinged to the drive chassis, and the other end of the front tow bar is used for the front-mounted agricultural implement to be hinged. The mounting end of the front telescopic cylinder is hinged to the drive chassis, and the telescopic end of the front telescopic cylinder is hinged to the middle of the front tow bar. The center-mounted device includes a left center-mounted mechanism and a right center-mounted mechanism symmetrically arranged along the width direction of the drive chassis. Both the left and right center-mounted mechanisms include a suspension component and a lifting component. The suspension component includes an upper pull rod, a lower pull rod, and a diagonal pull rod. One end of the upper pull rod is hinged to the drive chassis, and the other end is hinged to the center-mounted agricultural implement. The diagonal pull rod is located above the upper pull rod, with one end attached to the drive chassis and the other end attached to the middle of the upper pull rod. One end of the lower pull rod... The upper and lower pull rods are hinged to the drive chassis, and the other end of the lower pull rod is hinged to the centrally mounted agricultural implement. The upper pull rod and the lower pull rod have the same length. The lifting component includes a central telescopic cylinder, a central connecting rod, and a central hanging rod. One end of the central connecting rod is hinged to the drive chassis, and the other end of the central connecting rod is hinged to one end of the central hanging rod. The other end of the central hanging rod is used for hinged to the centrally mounted agricultural implement. The mounting end of the central telescopic cylinder is hinged to the drive chassis, and the telescopic end of the central telescopic cylinder is hinged to the middle of the central connecting rod. The mounting end of the central telescopic cylinder is located below the telescopic end.

[0011] In one embodiment, the length of the front suspension rod is adjustable; the length of the tie rod is adjustable.

[0012] In one embodiment, the rear suspension device includes a high-position suspension device and a low-position suspension device, and a rear suspension bracket is fixed on the rear crossbeam; when the rear crossbeam is mounted upside down on the drive chassis, the high-position suspension device is mounted on the rear suspension bracket to mount the rear-mounted agricultural implement at a high position; when the rear crossbeam is mounted upright on the drive chassis, the low-position suspension device is mounted on the rear suspension bracket to mount the rear-mounted agricultural implement at a low position.

[0013] In one embodiment, the high-mounted suspension device includes a left high-mounted mounting mechanism and a right high-mounted mounting mechanism. The left and right high-mounted mounting mechanisms are symmetrically arranged on the rear suspension bracket along the width direction of the drive chassis. Each of the left and right high-mounted mounting mechanisms includes a high-mounted rear suspension rod, a high-mounted rear connecting rod, and a high-mounted rear telescopic cylinder. One end of the high-mounted rear suspension rod is hinged to the rear suspension bracket, and the other end is hinged to the rear-mounted agricultural implement. One end of the high-mounted rear connecting rod is hinged to the rear suspension bracket, and the other end is hinged to the rear-mounted agricultural implement. The mounting end of the high-mounted rear telescopic cylinder is hinged to the rear suspension bracket, and the telescopic end of the high-mounted rear telescopic cylinder is hinged to the high-mounted rear connecting rod. The high-mounted rear suspension rod and the high-mounted rear connecting rod have the same length. When the rear suspension bracket is installed on the drive chassis, the high-mounted rear connecting rod is located below the high-mounted rear suspension rod. The low-position suspension device includes a left low-position mounting mechanism and a right low-position mounting mechanism. The left and right low-position mounting mechanisms are symmetrically arranged on the rear suspension bracket along the width direction of the drive chassis. Each of the left and right low-position mounting mechanisms includes a low-position rear telescopic rod, a low-position rear tie rod, a low-position rear support rod, and a low-position rear telescopic cylinder. One end of the low-position rear telescopic rod is hinged to the rear suspension bracket, and the other end is used for hinged connection to the rear-mounted agricultural implement. One end of the low-position rear tie rod is connected to the rear suspension bracket. The bracket is hinged, and the other end of the low-position rear pull rod is used for the hinge of the rear-mounted agricultural implement; the low-position rear telescopic cylinder is located between the low-position rear pull rod and the low-position rear telescopic cylinder, the mounting end of the low-position rear telescopic cylinder is hinged to the rear suspension bracket, and the telescopic end of the low-position rear telescopic cylinder is hinged to the low-position rear support rod; one end of the low-position rear support rod is hooked to the rear suspension bracket, and the other end of the low-position rear support rod is hooked to the low-position rear pull rod; when the rear suspension bracket is installed on the drive chassis, the low-position rear pull rod is located below the low-position rear telescopic rod.

[0014] In one embodiment, the length of the lower rear support rod is adjustable.

[0015] In one embodiment, the drive chassis includes a frame and a front axle, the front axle is mounted at the front end of the frame, and two self-powered wheels are mounted at the rear end of the frame and the front axle.

[0016] The present invention also discloses a farmland operation machinery, including a cab, the aforementioned farmland operation chassis, and wheels. The cab is installed at the front end of the drive chassis of the farmland operation chassis, and the wheels are installed on the drive chassis of the farmland operation chassis.

[0017] The present invention achieves the following technical effects compared to the prior art: The agricultural operation chassis and agricultural operation machinery of this invention can be equipped with corresponding agricultural machinery according to different operation needs. For example, when used for straw crushing, a straw crusher or other front-mounted agricultural machinery can be attached through the front suspension device; when used for residual film recycling, a residual film recycling machine or other mid-mounted agricultural machinery can be attached through the middle attachment device; when used for sowing or plant protection, a seeder, boom sprayer or other rear-mounted agricultural machinery can be attached through the rear suspension device. This avoids the need to repeatedly purchase field operation power devices for different operation stages, reduces agricultural production costs, and facilitates the sharing of farmland and crop information for different operation stages. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained by analyzing these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the farmland operation machinery (including farmland operation chassis) in an embodiment of the present invention; Figure 2 This is a side view of the agricultural machinery (including the agricultural chassis) in an embodiment of the present invention. Figure 3 This is a three-dimensional structural diagram of the agricultural machinery (including the drive chassis) in an embodiment of the present invention; Figure 4 This is a schematic diagram of the side structure of the agricultural machinery (including the drive chassis) in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the farmland operation machinery (including the front suspension device) in an embodiment of the present invention; Figure 6 for Figure 5 A partially enlarged structural diagram of the front suspension device; Figure 7 This is a three-dimensional structural diagram of the farmland operation chassis (including the central mounting device) in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the farmland operation machinery (including the high-position suspension device) in an embodiment of the present invention; Figure 9 This is a three-dimensional structural diagram of the farmland operation machinery (including the low-position suspension device) in an embodiment of the present invention; Figure 10 for Figure 9 A partially enlarged structural diagram of the mid-to-low position suspension device; Figure 11 This is a three-dimensional structural diagram of the farmland operation machinery (including the rear suspension bracket) in an embodiment of the present invention; Figure 12 This is a three-dimensional structural diagram of the farmland operation machinery (including the rear suspension bracket) in an embodiment of the present invention; Figure 13 This is a three-dimensional structural diagram of the walking wheel in an embodiment of the present invention; Figure 14 This is a three-dimensional structural diagram of a farmland operation machinery equipped with a straw crusher and a residual film recycling machine in an embodiment of the present invention; Figure 15 This is a side view of the agricultural machinery equipped with a straw crusher and a residual film recycling machine in an embodiment of the present invention. Figure 16 This is a three-dimensional structural diagram of a farmland operation machinery equipped with a boom sprayer and a pesticide tank, as shown in an embodiment of the present invention. Figure 17 This is a side view of the agricultural machinery equipped with a boom sprayer and a pesticide tank in an embodiment of the present invention. Figure 18 This is a three-dimensional structural diagram of a farmland operation machinery equipped with a seeder, as described in an embodiment of the present invention. Figure 19 This is a side view of a field operation machine equipped with a seeder in an embodiment of the present invention.

[0020] Note: Although Figure 1 and Figure 2 The image shows a high-mounted suspension device, a low-mounted suspension device, and two sets of rear suspension brackets. However, this does not mean that the high-mounted suspension device, the low-mounted suspension device, and two sets of rear suspension brackets are installed at the same time. Rather, it means that only one set of rear suspension brackets is installed on the rear crossbeam. When the rear crossbeam is installed upright, the rear suspension brackets are set downwards, and only the low-mounted suspension device is installed. When the rear crossbeam is installed in reverse, the rear suspension brackets are set upwards, and only the high-mounted suspension device is installed.

[0021] Explanation of reference numerals in the attached figures: 1. Drive chassis; 101. Cab; 102. Wheels; 103. Front axle; 104. Hydraulic motor; 105. Rear crossbeam; 106. Frame; 107. Powertrain; 108. Seedling separator; 109. Front power take-off unit; 2. Front suspension device; 201. Front suspension rod; 202. Front tow bar; 203. Front telescopic cylinder; 3. Mid-mounted connection device; 301. Upper tie rod; 302. Lower tie rod; 303. Diagonal tie rod; 304. Middle telescopic cylinder; 305. Middle connecting rod; 306. Middle suspension rod; 4. Low-position suspension device; 401. Low-position rear telescopic rod; 402. Low-position rear tie rod; 403. Low-position rear support rod; 404. Low-position rear telescopic cylinder; 5. High-position suspension device; 501. High-position rear suspension rod; 502. High-position rear connecting rod; 503. High-position rear telescopic cylinder; 6. Seeder; 7. Residual film recycling machine; 8. Boom sprayer; 9. Straw crusher; 10. First-aid kit; 11. Rear suspension bracket. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments analyzed and obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide a farmland operation chassis and farmland operation machinery to solve the problems existing in the prior art. By attaching different agricultural implements, it can be used in various stages such as sowing, plant protection and residual film recycling, which improves the utilization rate of the drive chassis and can significantly reduce the cost of repeatedly purchasing power machinery. It is of great significance to achieving sustainable agricultural development and improving farmers' economic benefits.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figures 1 to 19 As shown, this embodiment provides a farmland operation chassis, including: a drive chassis 1, a front suspension device 2, a center mounting device 3, and a rear suspension device. The drive chassis 1 is used to mount the wheels 102. The front suspension device 2 is used to mount and raise / lower front-mounted agricultural implements, such as a straw crusher 9, etc. (see reference). Figure 14 and Figure 15 (As shown). The center mounting device 3 is used for mounting and raising center-mounted agricultural implements, such as the residual film recycling machine 7 (see reference). Figure 15 and Figure 16 (as shown); the rear suspension device is used to mount and raise rear-mounted agricultural implements, such as the seeder 6 (see reference). Figure 16 and Figure 17 As shown), agricultural machinery and implements such as boom sprayers and 8 (for reference) Figure 18 and Figure 19 (As shown). This farmland operation chassis can be fitted with corresponding agricultural machinery and implements according to different operational needs, avoiding the need to repeatedly purchase field operation power devices for different operational stages, reducing agricultural production costs, and facilitating the sharing of farmland and crop information across different operational stages.

[0026] In one embodiment of this example: The front suspension device 2 has a four-link lifting structure, which can realize the lifting of the front-mounted agricultural machinery implements; The central mounting device 3 has a parallel four-bar lifting structure, which can realize the parallel lifting of the centrally mounted agricultural machinery. The rear suspension system features a four-link lifting structure, enabling rear-mounted agricultural implements to be raised or lowered horizontally.

[0027] In one embodiment of this example: In one embodiment of this invention: a rear crossbeam 105 is detachably connected to the drive chassis 1, and the rear suspension device can be mounted upright or reversed on the drive chassis 1 via the rear crossbeam 105. Specifically, refer to... Figure 9 , Figure 10 and Figure 12 As shown, the rear crossbeam 105 is mounted on the drive chassis 1 to enable the rear-mounted agricultural implements to be installed at a low position on the rear suspension device. (Refer to...) Figure 18 and Figure 19 As shown, the rear suspension is generally positioned downwards, with the engagement point located at a low position. (Reference) Figure 8 and Figure 11 As shown, the rear crossbeam 105 is mounted upside down on the drive chassis 1 to enable high-mounted installation of rear-mounted agricultural implements via the rear suspension system. (Refer to...) Figure 16 and Figure 17 As shown, the rear suspension device is generally oriented upwards, with the mounting point located at a high position. Furthermore, the rear crossbeam 105 is detachable, providing installation space for mid-mounted agricultural implements (such as a residual film recycling machine 7) mounted on the mid-mounting device 3 (see reference). Figure 14 (As shown).

[0028] In one embodiment of this example: refer to Figure 5 and Figure 6As shown, the front suspension device 2 includes a left front suspension mechanism and a right front suspension mechanism, which are symmetrically arranged along the width direction of the drive chassis 1. Both the left and right front suspension mechanisms include a front suspension rod 201, a front tow bar 202, and a front telescopic cylinder 203. One end of the front suspension rod 201 is hinged to the drive chassis 1, and the other end is used for hinged attachment of a front-mounted agricultural implement. The front tow bar 202 is located below the front suspension rod 201, and there is an angle between the front tow bar 202 and the front suspension rod 201. One end of the front tow bar 202 is hinged to the drive chassis 1, and the other end is used for hinged attachment of a front-mounted agricultural implement. Preferably, this end of the front tow bar 202 may have a mounting hole for hinged attachment of the front-mounted agricultural implement. The mounting end of the front telescopic cylinder 203 is hinged to the drive chassis 1, and the telescopic end of the front telescopic cylinder 203 is hinged to the middle of the front tow bar 202. By extending and retracting the telescopic end of the front telescopic cylinder 203, the front tow bar 202 can be raised and lowered, thereby lifting or lowering the front-mounted agricultural implement. The front telescopic cylinder 203 can be a hydraulic cylinder or an electric cylinder.

[0029] refer to Figure 7 As shown, the center mounting device 3 includes a left center mounting mechanism and a right center mounting mechanism, which are symmetrically arranged along the width direction of the drive chassis 1. Both the left and right center mounting mechanisms include suspension components and lifting components. The suspension components include an upper pull rod 301, a lower pull rod 302, and a diagonal pull rod 303. One end of the upper pull rod 301 is hinged to the drive chassis 1, and the other end is hinged to the center-mounted agricultural implement. The diagonal pull rod 303 is located inside the upper pull rod 301, with one end connected to the drive chassis 1 and the other end connected to the middle of the upper pull rod 301. One end of the lower pull rod 302 is hinged to the drive chassis 1, and the other end is hinged to the center-mounted agricultural implement. The upper pull rod 301 and the lower pull rod 302 have the same length, forming a parallelogram structure. The lifting components include a central telescopic cylinder 304, a central connecting rod 305, and a central lifting rod 306. One end of the central connecting rod 305 is hinged to the drive chassis 1, and the other end of the central connecting rod 305 is hinged to one end of the central lifting rod 306, the other end of which is used for hinged connection of the centrally mounted agricultural implement. The mounting end of the central telescopic cylinder 304 is hinged to the drive chassis 1, and the telescopic end of the central telescopic cylinder 304 is hinged to the middle of the central connecting rod 305. The mounting end of the central telescopic cylinder 304 is located below the telescopic end. The central telescopic cylinder 304 can be a hydraulic cylinder or an electric cylinder. The telescopic end of the central telescopic cylinder 304 extends and retracts, driving the central connecting rod 305 to swing up and down, ultimately converting this into the raising and lowering of the centrally mounted agricultural implement. Its diagonal tie rod 303 is used to limit the upper tie rod 301 from large-amplitude swinging.

[0030] In one embodiment of this example: The length of the front suspension rod 201 is adjustable to accommodate the posture of front-mounted agricultural machinery and errors in manufacturing equipment. The length of the diagonal tie rod 303 is adjustable to accommodate the posture of mid-mounted agricultural machinery and errors in manufacturing equipment. The lengths of the front suspension rod 201 and the diagonal tie rod 303 are adjusted using conventional methods, such as threaded or bolt-adjustable rods. Threaded adjustable rods typically consist of two sections: an outer sleeve and an inner rod. The outer sleeve and inner rod are connected by threads. Rotating the inner rod extends or retracts the outer sleeve. Bolt-adjustable rods also typically consist of two sections: an outer sleeve and an inner rod. An adjusting bolt is threaded onto the outer sleeve. Loosening the adjusting bolt allows the inner rod to be pulled out, while tightening the adjusting bolt presses the inner rod against the outer sleeve, locking the inner rod and outer sleeve together.

[0031] In one embodiment of this example: The rear suspension system includes a high-mounted suspension device 4 and a low-mounted suspension device 5. A rear suspension bracket 11 is fixed on the rear crossbeam 105.

[0032] When the rear crossbeam 105 is mounted upside down on the drive chassis 1, the high-mounted suspension device 4 is mounted on the rear suspension bracket 11, for reference. Figure 8 and Figure 11 As shown, at this time, the attachment point of the high-position suspension device 5 is located at a high position, so as to install the rear-mounted agricultural machinery implements at a high position.

[0033] When the rear crossbeam 105 is mounted on the drive chassis 1, the low-mounted suspension device 5 is mounted on the rear suspension bracket 11, as shown in the reference. Figure 9 , Figure 10 and Figure 12 As shown, at this time, the attachment point of the low-position suspension device 4 is located in a low position, so that the rear-mounted agricultural machinery can be installed in a low position.

[0034] This allows the rear suspension device to be installed in two modes: forward and reverse. When installed forward, it is used for hanging low-position agricultural implements such as the seeder 6; when installed reverse, it is used for hanging high-position agricultural implements such as the boom sprayer 8. The rear crossbeam 105 can be connected to the drive chassis 1 with bolts, facilitating the attachment and replacement of different agricultural implements.

[0035] In one embodiment of this example: refer to Figure 8 and Figure 11As shown, the high-mounted suspension device 5 includes a left high-mounted mounting mechanism and a right high-mounted mounting mechanism. These mechanisms are symmetrically arranged on the rear suspension bracket 11 along the width direction of the drive chassis 1. The rear suspension bracket 11 is mounted (usually fixedly, for example, by welding) on ​​the rear crossbeam 105, which is mounted backwards on the drive chassis 1. Both the left and right high-mounted mounting mechanisms include a high-mounted rear suspension rod 501, a high-mounted rear connecting rod 502, and a high-mounted rear telescopic cylinder 503. One end of the high-mounted rear suspension rod 501 is hinged to the high-mounted rear connecting rod 502, and the other end is used for hinged attachment of rear-mounted agricultural implements. One end of the high-mounted rear connecting rod 502 is hinged to the high-mounted rear connecting rod 502, and the other end is used for hinged attachment of rear-mounted agricultural implements. The mounting end of the high-position rear telescopic cylinder 503 is hinged to the high-position rear connecting rod 502, and the telescopic end of the high-position rear telescopic cylinder 503 is hinged to the high-position rear connecting rod 502. The high-position rear suspension rod 501 and the high-position rear connecting rod 502 have the same length to form a parallelogram structure. The telescopic end of the high-position rear telescopic cylinder 503 can extend and retract, realizing the parallel lifting and lowering of the rear-mounted agricultural implements. It is suitable for the suspension of high-position agricultural implements such as boom sprayers 8.

[0036] refer to Figure 9 , Figure 10 and Figure 12As shown, the low-position suspension device 4 includes a left low-position mounting mechanism and a right low-position mounting mechanism, which are symmetrically arranged on the rear suspension bracket 11 along the width direction of the drive chassis 1. The rear suspension bracket 11 is mounted (usually fixedly connected, such as by welding) on ​​the rear crossbeam 105, which is mounted upright on the drive chassis 1. Both the left and right low-position mounting mechanisms include a low-position rear telescopic rod 401, a low-position rear tie rod 402, a low-position rear support rod 403, and a low-position rear telescopic cylinder 404. One end of the low-position rear telescopic rod 401 is hinged to the rear suspension bracket 11, and the other end is used for hinged attachment of rear-mounted agricultural implements. One end of the low-position rear tie rod 402 is hinged to the rear suspension bracket 11, and the other end is used for hinged attachment of rear-mounted agricultural implements. The low-position rear telescopic cylinder 404 is located between the low-position rear tie rod 402 and the low-position rear telescopic rod 401. The mounting end of the low-position rear telescopic cylinder 404 is hinged to the rear suspension bracket 11, and the telescopic end of the low-position rear telescopic cylinder 404 is hinged to the low-position rear support rod 403. One end of the low-position rear support rod 403 is hooked to the rear suspension bracket 11, and the other end of the low-position rear support rod 403 is hooked to the low-position rear tie rod 402, which is used to limit the maximum swing of the low-position rear tie rod 402 during the lifting process. When the rear suspension bracket 11 is installed (reverse-mounted) on the drive chassis 1, the low-position rear tie rod 402 is located below the low-position rear telescopic rod 401. When the length of the low-position rear telescopic rod 401 is adjusted to be consistent with the length of the low-position rear pull rod 402, a parallelogram structure can be formed, which can realize the parallel lifting and lowering of the rear-mounted agricultural implements. The posture of the agricultural implements can also be changed during the lifting and lowering process by adjusting the length of the low-position rear telescopic rod 401. It is suitable for the suspension of low-position agricultural implements such as the seeder 6.

[0037] In one embodiment of this example: The front suspension rod 201, front tow bar 202, front telescopic cylinder 203, upper tie rod 301, lower tie rod 302, middle telescopic cylinder 304, middle connecting rod 305, middle suspension rod 306, low-position rear telescopic rod 401, low-position rear tie rod 402, low-position rear telescopic cylinder 404, high-position rear suspension rod 501, high-position rear connecting rod 502, and high-position rear telescopic cylinder 503 are all provided with hinge holes at both ends for hinge connection.

[0038] The diagonal tie rod 303 and the low-position rear support rod 403 are equipped with hanging rings at both ends, which cooperate with the hooks to achieve attachment. For agricultural machinery and other machinery that frequently changes attachments, the hook and hanging ring is a commonly used attachment structure, which can achieve quick assembly and disassembly. At the same time, it can swing a small distance up, down, left, and right, ensuring that the tie rods do not swing too much while preventing them from getting stuck.

[0039] In one embodiment of this invention, the length of the lower rear support rod 403 is adjustable. The length adjustment method for the lower rear support rod 403 is a conventional method, such as a threaded adjustment rod or a bolt adjustment rod. A threaded adjustment rod typically includes two sections: an outer sleeve and an inner rod. The outer sleeve and inner rod are connected by threads. Rotating the inner rod allows the inner rod to extend or retract from the outer sleeve. A bolt adjustment rod also typically includes two sections: an outer sleeve and an inner rod. An adjusting bolt is threaded onto the outer sleeve. Loosening the adjusting bolt allows the inner rod to be pulled out; tightening the adjusting bolt presses the inner rod against the outer sleeve, thus locking the inner rod and outer sleeve together.

[0040] In one embodiment of this invention: the rear suspension bracket 11 is a welded component, welded to the rear crossbeam 105. The rear crossbeam 105 is bolted to the drive chassis 1. The rear suspension bracket 11 is typically composed of four upright plates, but other components can also be used.

[0041] In one embodiment of this invention: the drive chassis 1 typically includes a front axle 103 and a frame 106. The front axle 103 is mounted on the front end of the frame 106, and two self-powered wheels 102 are mounted on the rear end of the frame 106 and the front axle 103. By controlling the rotational speed of the four wheels 102, forward movement and steering can be achieved. Alternatively, a traditional front-wheel steering, rear-wheel drive system can be used, but this method has a large turning radius and requires several forward and backward movements to achieve a U-turn, resulting in low operational efficiency. In contrast, the four independently powered wheels 102 achieve turning through differential speed, resulting in a turning radius much smaller than traditional front-wheel steering, especially advantageous for low-speed, small-radius turning, making U-turns easier and improving operational efficiency. The rear crossbeam 105 can be bolted to the rear end of the frame 106.

[0042] In one embodiment of this example: each of the four traveling wheels 102 is equipped with a hydraulic motor 104. The flow rate of the hydraulic motor 104 flowing through the four traveling wheels 102 is controlled by the control valve of the hydraulic system, thereby realizing the rotational speed change of each traveling wheel 102.

[0043] In one embodiment of this example: the ground clearance of the drive chassis 1 equipped with the walking wheels 102 is not less than 850mm, so that the drive chassis 1 has the characteristic of high ground clearance and can adapt to complex farmland terrain operations.

[0044] In one embodiment of this invention: the front end of the drive chassis 1 (frame 106) is provided with a front power mounting area for mounting a front power output device 109. The front power output device 109 provides rotational power to the suspended front-mounted agricultural implements. Specifically, the power is provided by the front power output device 109 via a belt drive and universal joint drive, outputting power to the front power output gearbox, thereby providing power to the agricultural implements. Typically, straw crushers 9 and similar devices require rotational power.

[0045] In one embodiment of this example: the drive chassis 1 (frame 106) is provided with a power mounting area for mounting the power assembly 107. The power assembly 107 can provide hydraulic power to the mid-mounted agricultural implement (film recycling machine 7), the rear-mounted agricultural implement (boom sprayer 8), and the hydraulic motor 104.

[0046] In one embodiment of this invention, a seedling separating device 108 is also included. The seedling separating device 108 is mounted on the axle of the frame 106 or the traveling wheel 102. The seedling separating device 108 is located in front of the traveling wheel 102 and serves to protect the seedlings and prevent the tires from crushing the crops. The seedling separating device 108 is typically a V-shaped plate structure.

[0047] In one embodiment of this example: When agricultural work chassis are used for straw crushing operations, refer to Figure 14 and Figure 15 As shown, the straw is crushed.

[0048] When the farm work platform is used for seeding operations, refer to Figure 18 and Figure 19 As shown, the rear crossbeam 105, which is equipped with the rear suspension bracket 11 (low-position suspension device 4), is mounted on the drive chassis 1 and the seeder 6 is attached to it. The low-position suspension device 4 realizes the raising and lowering and attitude adjustment of the seeder 6 through the extension and retraction of the low-position rear telescopic cylinder 404, so as to adapt to different requirements such as operation and transportation.

[0049] When agricultural work chassis are used for residual film recycling operations, refer to Figure 14 and Figure 15 As shown, the residual film recycling machine 7 is attached to the central mounting device 3. The parallel lifting and lowering of the residual film recycling machine 7 is achieved by the extension and retraction of the central telescopic cylinder 304, adapting to different requirements such as operation and transportation.

[0050] When agricultural work chassis are used for plant protection operations, refer to Figure 16 and Figure 17 As shown, the rear crossbeam 105, which is equipped with the reverse-mounted rear suspension bracket 11 (high-position suspension device 5), is installed on the drive chassis 1, and the boom sprayer 8 and the medicine tank 10 are connected. By extending and retracting the high-position rear telescopic cylinder 503, the boom sprayer 8 can be raised and lowered in parallel to meet the plant protection operation needs of different crop heights. Figure 10 The image shows the transport status of plant protection operations, with the boom sprayer raised to a high position for easy transport in the field.

[0051] This farmland operation chassis can be fitted with corresponding agricultural machinery and implements according to different operational needs, avoiding the need to repeatedly purchase field operation power devices for different operational stages, reducing agricultural production costs, and facilitating the sharing of farmland and crop information across different operational stages.

[0052] Example 2 like Figures 1 to 19 As shown, this embodiment provides a farmland operation machine, including a cab 101, a farmland operation chassis as in Embodiment 1, and wheels 102. The cab 101 is installed at the front end of the drive chassis 1 of the farmland operation chassis, and the wheels 102 are installed on the drive chassis 1 of the farmland operation chassis.

[0053] In one embodiment of this example: the ground clearance of the farmland operation chassis is at least 850mm.

[0054] In one embodiment of this invention, a front power take-off device 109 and a powertrain 107 are also included. The front power take-off device 109 is mounted on the front power mounting area at the front end of the drive chassis 1. The powertrain 107 is mounted on the power mounting area of ​​the drive chassis 1.

[0055] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A farmland operation chassis, characterized in that, include: A drive chassis, wherein the drive chassis is used to mount the wheels; A front suspension device, used for mounting and raising / lowering front-mounted agricultural implements; A center-mounted mounting device, used for mounting and raising / lowering center-mounted agricultural implements; And a rear suspension device, which is used to install and raise rear-mounted agricultural implements.

2. The farmland operation chassis according to claim 1, characterized in that, The front suspension device has a four-link lifting structure; The middle mounting device has a parallel four-bar lifting structure; The rear suspension device has a four-link lifting structure.

3. The farmland operation chassis according to claim 2, characterized in that, A rear crossbeam is detachably connected to the drive chassis. The rear suspension device can be mounted on the drive chassis either forward or backward via the rear crossbeam to enable the rear-mounted agricultural implement to be installed at a low or high position.

4. The farmland operation chassis according to claim 2, characterized in that: The front suspension device includes a left front suspension mechanism and a right front suspension mechanism symmetrically arranged along the width direction of the drive chassis. Each of the left and right front suspension mechanisms includes a front suspension rod, a front tow bar, and a front telescopic cylinder. One end of the front suspension rod is hinged to the drive chassis, and the other end of the front suspension rod is used for the front-mounted agricultural implement to be hinged. The front tow bar is located below the front suspension rod, and there is an angle between the front tow bar and the front suspension rod. One end of the front tow bar is hinged to the drive chassis, and the other end of the front tow bar is used for the front-mounted agricultural implement to be hinged. The mounting end of the front telescopic cylinder is hinged to the drive chassis, and the telescopic end of the front telescopic cylinder is hinged to the middle of the front tow bar. The center-mounted device includes a left center-mounted mechanism and a right center-mounted mechanism symmetrically arranged along the width direction of the drive chassis. Both the left and right center-mounted mechanisms include a suspension component and a lifting component. The suspension component includes an upper pull rod, a lower pull rod, and a diagonal pull rod. One end of the upper pull rod is hinged to the drive chassis, and the other end is hinged to the center-mounted agricultural implement. The diagonal pull rod is located inside the upper pull rod, with one end attached to the drive chassis and the other end attached to the middle of the upper pull rod. One end of the lower pull rod... The upper and lower pull rods are hinged to the drive chassis, and the other end of the lower pull rod is hinged to the centrally mounted agricultural implement. The upper pull rod and the lower pull rod have the same length. The lifting component includes a central telescopic cylinder, a central connecting rod, and a central hanging rod. One end of the central connecting rod is hinged to the drive chassis, and the other end of the central connecting rod is hinged to one end of the central hanging rod. The other end of the central hanging rod is used for hinged to the centrally mounted agricultural implement. The mounting end of the central telescopic cylinder is hinged to the drive chassis, and the telescopic end of the central telescopic cylinder is hinged to the middle of the central connecting rod. The mounting end of the central telescopic cylinder is located below the telescopic end.

5. The farmland operation chassis according to claim 4, characterized in that: The length of the front suspension rod is adjustable; the length of the tie rod is adjustable.

6. The farmland operation chassis according to claim 3, characterized in that, The rear suspension device includes a high-position suspension device and a low-position suspension device, and a rear suspension bracket is fixed on the rear crossbeam; when the rear crossbeam is mounted upside down on the drive chassis, the high-position suspension device is mounted on the rear suspension bracket to mount the rear-mounted agricultural implement at a high position; when the rear crossbeam is mounted upright on the drive chassis, the low-position suspension device is mounted on the rear suspension bracket to mount the rear-mounted agricultural implement at a low position.

7. The farmland operation chassis according to claim 6, characterized in that, The high-mounted suspension device includes a left high-mounted mounting mechanism and a right high-mounted mounting mechanism. These two mechanisms are symmetrically arranged on the rear suspension bracket along the width direction of the drive chassis. Each mechanism includes a high-mounted rear suspension rod, a high-mounted rear connecting rod, and a high-mounted rear telescopic cylinder. One end of the high-mounted rear suspension rod is hinged to the rear suspension bracket, and the other end is hinged to the rear-mounted agricultural implement. One end of the high-mounted rear connecting rod is hinged to the rear suspension bracket, and the other end is hinged to the rear-mounted agricultural implement. The mounting end of the high-mounted rear telescopic cylinder is hinged to the rear suspension bracket, and the telescopic end is hinged to the high-mounted rear connecting rod. The high-mounted rear suspension rod and the high-mounted rear connecting rod have the same length. When the rear suspension bracket is installed on the drive chassis, the high-mounted rear connecting rod is located below the high-mounted rear suspension rod. The low-position suspension device includes a left low-position mounting mechanism and a right low-position mounting mechanism. The left and right low-position mounting mechanisms are symmetrically arranged on the rear suspension bracket along the width direction of the drive chassis. Each of the left and right low-position mounting mechanisms includes a low-position rear telescopic rod, a low-position rear tie rod, a low-position rear support rod, and a low-position rear telescopic cylinder. One end of the low-position rear telescopic rod is hinged to the rear suspension bracket, and the other end is used for hinged connection to the rear-mounted agricultural implement. One end of the low-position rear tie rod is connected to the rear suspension bracket. The bracket is hinged, and the other end of the low-position rear pull rod is used for the hinge of the rear-mounted agricultural implement; the low-position rear telescopic cylinder is located between the low-position rear pull rod and the low-position rear telescopic cylinder, the mounting end of the low-position rear telescopic cylinder is hinged to the rear suspension bracket, and the telescopic end of the low-position rear telescopic cylinder is hinged to the low-position rear support rod; one end of the low-position rear support rod is hooked to the rear suspension bracket, and the other end of the low-position rear support rod is hooked to the low-position rear pull rod; when the rear suspension bracket is installed on the drive chassis, the low-position rear pull rod is located below the low-position rear telescopic rod.

8. The farmland operation chassis according to claim 7, characterized in that, The length of the low-position rear support rod is adjustable.

9. The farmland operation chassis according to claim 6, characterized in that, The drive chassis includes a frame and a front axle. The front axle is mounted at the front end of the frame, and two self-powered wheels are mounted at the rear end of the frame and at the front axle.

10. A type of agricultural machinery, characterized in that, It includes a driver's cab, a farmland operation chassis as described in any one of claims 1-9, and wheels, wherein the driver's cab is installed at the front end of the drive chassis of the farmland operation chassis, and the wheels are installed on the drive chassis of the farmland operation chassis.

Images