High-mobility platform of wide-width strip rotary cultivator

By introducing an offset traction frame, rotation and lifting mechanism into the wide-width rotary tiller, the problems of insufficient steering flexibility and inconvenient transportation have been solved, achieving small-radius steering and high mobility, thus improving operating efficiency and transportation convenience.

CN224022266UActive Publication Date: 2026-03-24JILIN AGRICULTURAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional wide-width rotary tillers have insufficient steering flexibility in their traction platforms, making it difficult to achieve small-radius turns, and the fixed width of the main beam causes transportation inconvenience.

Method used

It adopts an offset traction frame, a rotating mechanism and a lifting mechanism. The rotation and lifting of the frame are realized by controlling the pinion and four-bar linkage through hydraulic motors and hydraulic cylinders. Combined with transmission components and universal joints, the turning radius and width occupied are reduced.

Benefits of technology

It enables small-radius turning in narrow plots and complex terrain, reducing the frequency of U-turns in the field, improving operational efficiency, and facilitating relocation on rural roads.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of high-maneuverability platforms, and particularly relates to a high-maneuverability platform of a wide strip rotary cultivator, which comprises an offset traction frame, a rotating mechanism, a lifting mechanism, a transmission component and a strip rotary cultivator frame, and further comprises a front-end inclined traction component and a main beam component, the output end of the transmission hydraulic motor is connected with a gearbox on the strip rotary cultivator through a universal joint to form a transmission assembly, so that a knife roll of the strip rotary cultivator is driven to rotate for operation, and in order to facilitate connection and steering during field operation, an offset traction frame is adopted to reduce the turning radius in the operation process, so that the operation efficiency is improved. The output shaft of the rotary hydraulic motor controls the small gear to be meshed with the large gear to achieve rotation, the lifting mechanism rotates on the rotary disc, the lifting hydraulic cylinder controls the four-connecting-rod mechanism to ascend and descend, the lifting mechanism is connected with the strip rotary cultivator rack through the hanging plate, and therefore rotary ascending and descending of the rack are achieved. Therefore, the occupied width on a road is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to high mobility platform technical field especially relates to a wide strip rotary cultivator's high mobility platform. BACKGROUND

[0002] The strip rotary cultivator can reduce the influence of the northeast black soil fertility loss and wind erosion problem on the soil, considering the economy, adaptability and productivity factors, the wide strip rotary cultivator equipment is more suitable for popularization and use in the northeast ridge region, the rotary cultivator is the soil tillage machinery widely used in modern agriculture, and the mobility and adaptability of the traction platform directly affect the operation efficiency and terrain applicability, the traditional wide rotary cultivator traction platform adopts the fixed traction frame and rigid girder structure, and the steering flexibility is insufficient, the turning radius is large when working in narrow plots or complex terrain, small radius steering is difficult to realize, the field U-turn is frequent, and the operation efficiency is low, the girder width of the wide rotary cultivator is fixed, the road transportation is easy to be too wide, and the wide rotary cultivator is not convenient to migrate in the country road, therefore, the wide strip rotary cultivator's high mobility platform is provided.

[0003] For example, the Chinese patent with the authorized announcement number CN208029329U discloses a strip rotary cultivator, and belongs to the field of agricultural machinery, which comprises a shell, a roller shaft, a reduction box and a cross universal joint, the roller shaft is connected with the shell through an end cover, the cross universal joint is connected with the reduction box, the reduction box is fixedly arranged on the upper portion of the shell, is connected with and drives the roller shaft to rotate, a rotary tillage knife sleeve is movably sleeved on the roller shaft, rotary tillage knives are fixedly arranged on the rotary tillage knife sleeve, and locking pieces are arranged on the rotary tillage knife sleeve.

[0004] The prior art document has the following problems:

[0005] The prior art document has the following problems: The traditional wide rotary cultivator traction platform adopts the fixed traction frame and rigid girder structure, the steering flexibility is insufficient, the turning radius is large when working in narrow plots or complex terrain, small radius steering is difficult to realize, the field U-turn is frequent, the operation efficiency is low, and the girder width of the wide rotary cultivator is fixed, the road transportation is easy to be too wide, and the wide rotary cultivator is not convenient to migrate in the country road, therefore, the wide strip rotary cultivator's high mobility platform is provided. Utility model content

[0006] The utility model aims at the above-mentioned technical problems, provides a wide strip rotary cultivator's high mobility platform, achieves the effect that small radius steering is convenient, and the wide strip rotary cultivator's high mobility platform is convenient to migrate in the country road.

[0007] In view of this, the present invention provides a high-mobility platform for a wide-width strip rotary tiller, including an offset traction frame, a rotating mechanism, a lifting mechanism, a transmission assembly, and a strip rotary tiller frame. The offset traction frame is composed of a front-end inclined traction component and a main beam component. A rotating mechanism is fixed above the main beam component, controlling a small gear to rotate around a large gear via a rotating hydraulic motor, i.e., rotating a disc. A lifting mechanism is fixed on the rotating disc, controlling a four-bar linkage to lift and lower via a lifting hydraulic cylinder. A transmission assembly is formed by a hydraulic pump fixed at the front end of the offset traction frame and a hydraulic motor fixed on the rotating disc. Hydraulic pipes are fixedly installed on both sides of the hydraulic pump. A universal joint is fixedly installed at the output end of the hydraulic motor. A gearbox is fixedly installed at one end of the universal joint. The four-bar linkage is connected to the strip rotary tiller frame via a suspension plate. A pressing device is suspended at the rear of the strip rotary tiller frame.

[0008] Based on the above structure, the hydraulic system is connected to the transmission hydraulic motor via hydraulic pipelines, and the transmission hydraulic motor is connected to the strip tiller to achieve power transmission, reducing the amount of installation work during tillage. To facilitate turning during field operations, an offset traction frame is used to reduce the turning radius during operation. The lifting mechanism is controlled by a lifting hydraulic cylinder to lift and lower the four-bar linkage mechanism, and the lifting mechanism is connected to the strip rotary tiller frame through a suspension plate, thus realizing the rotation and lifting of the frame, thereby reducing the width occupied on the road.

[0009] Preferably, a traction end is fixedly installed at the bottom of the inclined traction component, a fixing rod is fixedly installed at the top of the inclined traction component, a U-shaped square steel is fixedly installed at the bottom of the main beam component, an intermediate square steel is fixedly installed between the main beam components, a rear longitudinal square steel is fixedly installed at the top of the main beam component, and a finite depth wheel is installed at the top of the rear longitudinal square steel.

[0010] Preferably, a bearing is fixedly installed on the inner wall of the large gear, and a rotating base is fixedly installed on one end of the bearing.

[0011] Preferably, a hydraulic fixing plate is fixedly installed at one end of the lifting hydraulic cylinder, and fixing connecting rods are fixedly installed on the surface of the four-bar linkage.

[0012] Preferably, a disc is fixedly installed between the pressing devices, and a rocker arm is fixedly installed on the surface of the disc.

[0013] Preferably, a rotary hydraulic cylinder is fixedly mounted on the surface of the rocker arm.

[0014] Preferably, a traction rod is fixedly installed on one side of the fixed rod, a side baffle is fixedly installed on the top of the traction rod, and a fan-shaped plate is fixedly installed on the surface of the side baffle.

[0015] The beneficial effects of this utility model are:

[0016] 1. A high-mobility platform for a wide-width strip rotary tiller, comprising a transmission assembly consisting of a transmission hydraulic motor output end and a gearbox on the strip rotary tiller connected via a universal joint, thereby driving the tiller's blade roller to rotate for operation. To facilitate turning during field operations, an offset traction frame is used to reduce the turning radius during operation.

[0017] 2. A high-mobility platform for a wide-width strip rotary tiller, wherein a small gear is controlled by the output shaft of a rotating hydraulic motor to mesh with a large gear to achieve rotation, thereby causing the lifting mechanism to rotate on a rotating disc. The lifting mechanism is controlled by a lifting hydraulic cylinder to lift and lower a four-bar linkage mechanism, and the lifting mechanism is connected to the strip rotary tiller frame through a suspension plate, thus realizing the rotation and lifting of the frame, thereby reducing the width occupied on the road. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a partial perspective view of the offset traction frame in this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the rotating mechanism in this utility model;

[0021] Figure 4 This is a partial perspective view of the lifting mechanism in this utility model;

[0022] Figure 5 This is a partial perspective view of the transmission component in this utility model;

[0023] Figure 6 This is a partial perspective view of the frame of the strip rotary tiller in this utility model.

[0024] The markings in the diagram are as follows:

[0025] 1. Offset traction frame; 11. Inclined traction component; 12. Main beam component; 111. Sector plate; 112. Side baffle; 113. Fixed rod; 114. Traction rod; 115. Intermediate square steel; 116. U-shaped square steel; 117. Rear longitudinal square steel; 118. Depth limiting wheel; 119. Traction end; 2. Rotating mechanism; 21. Rotary hydraulic motor; 22. Pinion gear; 23. Large gear; 24. Rotary disk; 211. Rotating base ; 212, Bearing; 3, Lifting Mechanism; 31, Lifting Hydraulic Cylinder; 32, Four-Bar Linkage Mechanism; 311, Hydraulic Fixing Plate; 312, Fixing Link; 4, Transmission Assembly; 41, Hydraulic Pump; 42, Transmission Hydraulic Motor; 411, Hydraulic Pipeline; 412, Universal Joint; 413, Gearbox; 5, Strip Rotary Tiller Frame; 51, Suspension Plate; 52, Pressing Device; 511, Rotary Hydraulic Cylinder; 512, Rocker Arm; 513, Disc. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This application discloses a high-mobility platform for a wide-strip rotary tiller. Please refer to [link / reference]. Figures 1-6 The system includes an offset traction frame 1, a rotating mechanism 2, a lifting mechanism 3, a transmission assembly 4, and a strip rotary tiller frame 5. It also includes: the offset traction frame 1, which consists of a front-end inclined traction component 11 and a main beam component 12; a rotating mechanism 2 is fixed above the main beam component 12; a rotating hydraulic motor 21 controls a small gear 22 to rotate around a large gear 23, i.e., a rotating disk 24 rotates; a lifting mechanism 3 is fixed on the rotating disk 24; a lifting hydraulic cylinder 31 controls a four-bar linkage 32 to lift; a hydraulic pump 41 is fixed at the front end of the offset traction frame 1; a transmission hydraulic motor 42 is fixed on the rotating disk 24, forming the transmission assembly 4; hydraulic pipes 411 are fixedly installed on both sides of the hydraulic pump 41; a universal joint 412 is fixedly installed at the output end of the transmission hydraulic motor 42; a gearbox 413 is fixedly installed at one end of the universal joint 412; the four-bar linkage 32 is connected to the strip rotary tiller frame 5 via a suspension plate 51; and a pressing device 52 is suspended at the rear of the strip rotary tiller frame 5.

[0028] Based on the above structure, during the high-mobility platform transportation and tillage of the wide-width strip rotary tiller, the output shaft of the rotating hydraulic motor 21 controls the small gear 22 to mesh with the large gear 23 to achieve rotation, causing the lifting mechanism 3 to rotate on the rotating disk 24. The lifting mechanism 3 is raised and lowered by the four-bar linkage 32 controlled by the lifting hydraulic cylinder 31, and the lifting mechanism 3 is connected to the strip rotary tiller frame 5 through the suspension plate 51, thus realizing the rotation and raising of the frame, thereby reducing the width occupied on the road. The hydraulic pump 41 is connected to the tractor output shaft, and the front end of the offset type traction frame 1 is fixed to the hydraulic pump 41. The front end of the hydraulic pump 41 and the tractor output shaft are connected. The output shaft is connected, the oil inlet is connected to the oil tank, and the oil outlet is connected to the oil inlet of the fixed transmission hydraulic motor 42 on the rotating disk 24 through the hydraulic pipeline 411. The oil outlet of the transmission hydraulic motor 42 is connected to the oil tank after passing through the radiator. The output end of the transmission hydraulic motor 42 is connected to the gearbox 413 on the strip rotary tiller through the universal joint 412 to form the transmission component 4, thereby driving the strip tiller's blade roller to rotate for operation. To facilitate turning during field operation, an offset traction frame 1 is used to reduce the turning radius during operation.

[0029] In one embodiment, a traction end 119 is fixedly installed at the bottom of the inclined traction component 11, a fixing rod 113 is fixedly installed at the top of the inclined traction component 11, a U-shaped square steel 116 is fixedly installed at the bottom of the main beam component 12, an intermediate square steel 115 is fixedly installed between the main beam components 12, a rear longitudinal square steel 117 is fixedly installed at the top of the main beam component 12, and a limited-depth wheel 118 is installed at the top of the rear longitudinal square steel 117.

[0030] Specifically, the intermediate square steel 115 is installed in the middle of the U-shaped square steel 116 and connected to the rear longitudinal square steel 117, and the depth-limiting wheel 118 is installed on the rear longitudinal square steel 117 through the suspension plates on both sides.

[0031] In this embodiment, the installation distances of the three-limit depth wheel 118 are 900mm and 1100mm respectively. Since the blade roller of the five-row strip rotary tiller is installed in an odd number of rows, the main beam component 12 is positioned to one side relative to the center of the strip rotary tiller. Therefore, the center of the traction end 119 is 580mm away from the middle square beam 115.

[0032] In one embodiment, a bearing 212 is fixedly installed on the inner wall of the large gear 23, and a rotating base 211 is fixedly installed on one end of the bearing 212.

[0033] Specifically, a rotating base 211 is installed above the offset traction frame 1, and a large gear 23 is fixed on the rotating base 211. A bearing 212 is installed in the middle of the large gear 23, and a rotating disk 24 is fixed above the bearing 212. A rotating hydraulic motor 21 is fixed on the rotating disk 24, and a small gear 22 is installed on the output shaft of the rotating hydraulic motor 21.

[0034] In this embodiment, rotation is achieved by meshing on the large gear 23, and the rotation center of the rotating mechanism 2 is on the same horizontal line as the center of the strip rotary tiller.

[0035] In one embodiment, a hydraulic fixing plate 311 is fixedly installed at one end of the lifting hydraulic cylinder 31, and fixing links 312 are fixedly installed on the surface of the four-bar linkage 32.

[0036] Specifically, the lifting hydraulic cylinder 31 is fixed by the hydraulic fixing plate 311 and the fixing link 312, and the lifting hydraulic cylinder 31 controls the lifting of the four-bar linkage 32 by extending and retracting.

[0037] In this embodiment, two lifting hydraulic cylinders 31 are connected to the hydraulic output port at the rear end of the tractor through a flow divider and combiner valve, which can lift the machine by 700mm. The centers of the two sets of four-bar linkages 32 are on the same horizontal line as the center of the strip rotary tiller.

[0038] In one embodiment, a disc 513 is fixedly installed between the pressing devices 52, and a rocker arm 512 is fixedly installed on the surface of the disc 513.

[0039] Specifically, the pressing device 52 at the rear of the strip rotary tiller frame 5 is connected to the rotating hydraulic cylinder 511.

[0040] In this embodiment, the crank-rocker mechanism 512, formed by the rocker arm 512 and the disc 513, controls the pressing device 52 to rotate around the steel pipe.

[0041] In one embodiment, a rotary hydraulic cylinder 511 is fixedly mounted on the surface of the rocker arm 512.

[0042] Specifically, the rotary hydraulic cylinder 511 is installed via the rocker arm 512.

[0043] In this embodiment, the rocker arm 512 is used to connect the rotary hydraulic cylinder 511.

[0044] In one embodiment, a traction rod 114 is fixedly installed on one side of the fixed rod 113, a side baffle 112 is fixedly installed on the top of the traction rod 114, and a fan-shaped plate 111 is fixedly installed on the surface of the side baffle 112.

[0045] Specifically, the inclined traction component 11 forms a limiting angle through the sector plate 111 and the side baffle 112.

[0046] In this embodiment, a triangular stabilizing structure formed by a fixed rod 113 and a traction rod 114 is used to connect with the rear main beam component 12.

[0047] In this embodiment, a high-mobility platform for a wide-width strip rotary tiller is used. During transportation and tillage, the output shaft of the rotating hydraulic motor 21 controls the small gear 22 to mesh with the large gear 23, causing the lifting mechanism 3 to rotate on the rotating disk 24. The lifting mechanism 3 is controlled by the lifting hydraulic cylinder 31 to raise and lower the four-bar linkage 32. The lifting mechanism 3 is connected to the strip rotary tiller frame 5 through the suspension plate 51, thus realizing the rotation and raising of the frame, thereby reducing the width occupied on the road. The hydraulic pump 41 is connected to the tractor output shaft, and then connected to the transmission hydraulic motor 42 through the hydraulic pipe 411. The transmission hydraulic motor 42 is connected to the strip tiller to realize power transmission, reducing the amount of installation work during tillage. For convenient connection and turning during field operation, an offset type traction frame 1 is used to reduce the turning radius during operation.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-mobility platform for a wide-width strip rotary tiller, comprising an offset traction frame (1), a rotating mechanism (2), a lifting mechanism (3), a transmission assembly (4), and a strip rotary tiller frame (5), characterized in that, Also includes: The offset traction frame (1) consists of a front inclined traction component (11) and a main beam component (12). A rotating mechanism (2) is fixed above the main beam component (12). A small gear (22) is controlled by a rotating hydraulic motor (21) to rotate around a large gear (23), that is, the rotating disk (24) rotates. A lifting mechanism (3) is fixed on the rotating disk (24). A lifting hydraulic cylinder (31) controls the lifting of a four-bar linkage (32). A hydraulic pump (41) and a rotating hydraulic cylinder (32) are fixed at the front end of the offset traction frame (1). A transmission hydraulic motor (42) is fixed on the turntable (24) to form a transmission assembly (4). Hydraulic pipes (411) are fixedly installed on both sides of the hydraulic pump (41). A universal joint (412) is fixedly installed at the output end of the transmission hydraulic motor (42). A gearbox (413) is fixedly installed at one end of the universal joint (412). The four-bar linkage (32) is connected to the strip rotary tiller frame (5) through the suspension plate (51). A pressing device (52) is suspended at the rear of the strip rotary tiller frame (5).

2. The high-mobility platform of a wide-strip rotary tiller according to claim 1, characterized in that: The bottom of the inclined traction component (11) is fixedly equipped with a traction end (119), the top of the inclined traction component (11) is fixedly equipped with a fixing rod (113), the bottom of the main beam component (12) is fixedly equipped with a U-shaped square steel (116), the middle square steel (115) is fixedly installed between the main beam components (12), the top of the main beam component (12) is fixedly equipped with a rear longitudinal square steel (117), and a finite depth wheel (118) is installed on the top of the rear longitudinal square steel (117).

3. The high-mobility platform of a wide-strip rotary tiller according to claim 1, characterized in that: A bearing (212) is fixedly installed on the inner wall of the large gear (23), and a rotating base (211) is fixedly installed on one end of the bearing (212).

4. The high-mobility platform of a wide-strip rotary tiller according to claim 1, characterized in that: A hydraulic fixing plate (311) is fixedly installed at one end of the lifting hydraulic cylinder (31), and a fixing link (312) is fixedly installed on the surface of the four-bar linkage (32).

5. The high-mobility platform of a wide-strip rotary tiller according to claim 1, characterized in that: A disc (513) is fixedly installed between the pressing devices (52), and a rocker arm (512) is fixedly installed on the surface of the disc (513).

6. The high-mobility platform of a wide-strip rotary tiller according to claim 5, characterized in that: A rotary hydraulic cylinder (511) is fixedly mounted on the surface of the rocker arm (512).

7. The high-mobility platform of a wide-strip rotary tiller according to claim 2, characterized in that: A traction rod (114) is fixedly installed on one side of the fixed rod (113), a side baffle (112) is fixedly installed on the top of the traction rod (114), and a fan-shaped plate (111) is fixedly installed on the surface of the side baffle (112).

Citation Information

Patent Citations

  • Strip belt rotary cultivator

    CN208029329U