A double-rotation structure of a cultivator

By using a dual-rotor structure design for the tillage machine, the combined use of the front and rear rotary rollers achieves thorough crushing and tilling of straw, overcoming the shortcomings of the traditional single-roller structure and improving tilling effect and soil nutrient absorption efficiency.

CN224670298UActive Publication Date: 2026-08-25XUZHOU CUCKOO AGRICULTURAL MACHINERY CO LTD
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Patent Information

Application Number
CN202522043207.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-25
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

The single-roller structure of traditional tillage machines has limited effectiveness in breaking down and burying straw during the tilling process, which affects straw decomposition and soil nutrient absorption, and may also affect subsequent sowing and crop growth.

Method used

The tillage and seeding machine is designed with a dual-rotor structure. The front rotary roller is installed lower than the rear rotary roller, and the deep rotary blades of the front rotary roller are longer than the shallow rotary blades of the rear rotary roller. The front rotary roller and the deep rotary blades perform initial crushing, while the rear rotary roller and the shallow rotary blades perform further crushing and turning of the soil, so as to achieve full crushing and return of the straw to the field.

Benefits of technology

It improves the efficiency of straw crushing and burial, promotes straw decomposition and soil nutrient absorption, and improves subsequent sowing and crop growth conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to ploughing machine ploughing technology field discloses a kind of double-rotation structure of ploughing machine, including frame, front roller and rear roller, the inside of frame is sequentially rotated and installed with front roller and rear roller, the outer end of front roller and rear roller is fixedly provided with multiple sockets, the inside of multiple sockets of front roller surface is all inserted with deep rotary knife, the inside of multiple sockets of rear roller surface is all inserted with shallow rotary knife.The utility model in the prior art, by designing the two rotary roller structures of front roller and rear roller, and the installation position of front roller is lower than rear roller, and the length of deep rotary knife of front roller is greater than shallow rotary knife of rear roller, by front roller and deep rotary knife, preliminary crushing and field operation are carried out to gourd, then by rear roller and shallow rotary knife, gourd is further crushed, and secondary ploughing operation is carried out to soil, and the above structure design can better crush gourd and ploughing operation.
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Description

Technical Field

[0001] This utility model relates to the field of tillage technology for seeders, and more particularly to a double-rotor structure for seeders. Background Technology

[0002] The rotary roller structure of a tiller is the core component of the rotary roller system. It is usually a sturdy steel shaft on which rotary blades are mounted. The blade shaft is connected to the tractor's power take-off shaft via a transmission device and rotates under the drive of the tractor.

[0003] Traditional tillage machines mostly use a single-roller structure for turning the soil. However, in current soil turning processes, straw needs to be returned to the field. The single-roller structure has limited effectiveness in breaking down and burying the straw. The straw may simply be pressed under the soil layer without being fully chopped, which is not conducive to the rapid decomposition of the straw and the absorption of nutrients by the soil. It may also affect subsequent sowing and crop growth.

[0004] Therefore, those skilled in the art have provided a dual-rotor structure for a tillage and seeding machine to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-rotor structure for a tillage and seeding machine. This structure features a front and rear rotating roller, with the front roller positioned lower than the rear roller. The deep rotating blades on the front roller are longer than the shallow rotating blades on the rear roller. The front roller and deep rotating blades perform initial crushing and returning of the straw to the field, followed by further crushing of the straw by the rear roller and shallow rotating blades. Simultaneously, the soil is turned over a second time. This structural design allows for better crushing, returning, and turning of the straw to the field.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dual-rotor structure for a tillage and seeding machine includes a frame, a front rotary roller, and a rear rotary roller. The front rotary roller and the rear rotary roller are rotatably mounted on the inner side of the frame. Multiple sockets are fixedly provided at the outer ends of both the front rotary roller and the rear rotary roller. Deep rotary blades are inserted into the multiple sockets on the surface of the front rotary roller, and shallow rotary blades are inserted into the multiple sockets on the surface of the rear rotary roller. The length of each deep rotary blade is greater than the length of the shallow rotary blade. The installation position of the front rotary roller is lower than the installation height of the rear rotary roller.

[0008] The above technical solution involves designing two rotating roller structures, a front rotating roller and a rear rotating roller, with the front rotating roller installed lower than the rear rotating roller. The length of the deep rotating blade on the front rotating roller is greater than that on the shallow rotating blade on the rear rotating roller. The front rotating roller and the deep rotating blade are used to perform initial crushing and returning of the citrus stems to the field. Then, the rear rotating roller and the shallow rotating blade are used to further crush the citrus stems, while simultaneously performing a secondary tilling operation on the soil. This structural design can better facilitate the crushing, returning, and tilling of the citrus stems to the field.

[0009] Furthermore, driven gears are installed on one side of both the front and rear rotating rollers. Two driven gears are sequentially meshed with two mating gears at one end. A driving gear is meshed with one end of the mating gear at the side. Each mating gear and driving gear is rotatably mounted on the surface of the frame. Both driving gears are connected to the power output shaft of the tractor. A gearbox is installed on the outer end of the mating gear, driving gear, and driven gear on the same side.

[0010] The above technical solution connects the drive gear to the power output shaft of the tractor, and then controls the rotation of the front and rear rollers through the meshing transmission of the drive gear with two auxiliary gears and the driven gear.

[0011] Furthermore, a pair of bearing seats are installed at both ends of the frame, and the front and rear rollers are respectively inserted between the two pairs of bearing seats, with a bearing inlaid inside each bearing seat;

[0012] With the above technical solution, a pair of bearing seats are installed at both ends of the frame. The front roller and the rear roller are respectively inserted between the two pairs of bearing seats. Each bearing seat is inlaid with a bearing to facilitate the rotation of the front roller and the rear roller.

[0013] Furthermore, each of the deep and shallow rotary cutters is fitted with a fixing bolt at the connection point with the socket;

[0014] With the above technical solution, fixing bolts are installed at the connection points of each deep and shallow rotary cutter and socket, so as to facilitate the connection and fixation of the deep and shallow rotary cutter and socket.

[0015] Furthermore, a set of mounting bolts is installed at the connection position between each bearing housing and the frame;

[0016] The above technical solution provides a set of mounting bolts at the connection point between each bearing housing and the frame, which facilitates the installation and fixing of the bearing housing.

[0017] Furthermore, each of the deep rotary cutter, shallow rotary cutter, and socket is made of steel alloy material, and the front rotary roller and the rear rotary roller are both made of steel alloy material;

[0018] Through the above technical solution, each deep rotary blade, shallow rotary blade, and socket is made of steel alloy material, and the front and rear rotary rollers are also made of steel alloy material, thus ensuring the structural strength and corrosion resistance of the rotary tillage structure.

[0019] This utility model has the following beneficial effects:

[0020] 1. The present invention proposes a dual-rotor structure for a tillage and seeding machine. By designing two rotating roller structures, namely a front rotating roller and a rear rotating roller, with the front rotating roller installed lower than the rear rotating roller, and the length of the deep rotating blade of the front rotating roller being greater than that of the shallow rotating blade of the rear rotating roller, the front rotating roller and the deep rotating blade perform preliminary crushing and returning of the straw to the field. Then, the rear rotating roller and the shallow rotating blade further crush the straw and simultaneously perform a secondary tilling operation on the soil. The above structural design can better crush and return the straw to the field and till the soil. Attached Figure Description

[0021] Figure 1 This is an orthographic projection of a double-rotary structure for a tillage and seeding machine proposed in this utility model;

[0022] Figure 2 This is a top axonometric view of a double-rotary structure for a tillage and seeding machine proposed in this utility model;

[0023] Figure 3 This is an isometric view of the rear rotary roller of a double-rotor structure for a tillage and seeding machine proposed in this utility model;

[0024] Figure 4 This is a front view of a double-rotary structure for a tillage and seeding machine proposed in this utility model;

[0025] Figure 5 This is a cross-sectional view of a double-rotor structure for a tillage and seeding machine proposed in this utility model;

[0026] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0027] Legend:

[0028] 1. Frame; 2. Bearing housing; 3. Front rotary roller; 4. Deep rotary cutter; 5. Rear rotary roller; 6. Shallow rotary cutter; 7. Socket; 8. Fixing bolt; 9. Mounting bolt; 10. Driven gear; 11. Matching gear; 12. Drive gear; 13. Gearbox. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Reference Figure 1-6 This utility model provides an embodiment of a double-rotor structure for a tillage and seeding machine, including a frame 1, a front rotary roller 3, and a rear rotary roller 5. The front rotary roller 3 and the rear rotary roller 5 are rotatably mounted on the inner side of the frame 1. Multiple sockets 7 are fixedly provided at the outer ends of both the front rotary roller 3 and the rear rotary roller 5. Deep rotary blades 4 are inserted into the multiple sockets 7 on the surface of the front rotary roller 3, and shallow rotary blades 6 are inserted into the multiple sockets 7 on the surface of the rear rotary roller 5. The length of each deep rotary blade 4 is greater than the length of each shallow rotary blade 6. The mounting position of the front rotary roller 3... The installation height of the front roller 3 and the rear roller 5 is lower than that of the rear roller 5. By designing two roller structures, the front roller 3 is installed at a lower position than the rear roller 5, and the length of the deep blade 4 of the front roller 3 is greater than that of the shallow blade 6 of the rear roller 5. The front roller 3 and the deep blade 4 are used to perform preliminary crushing and returning of the citrus stems to the field. Then, the rear roller 5 and the shallow blade 6 are used to further crush the citrus stems and perform secondary soil turning. The above structural design can better crush and return the citrus stems to the field and turn the soil.

[0031] Driven gears 10 are mounted on one side of both the front roller 3 and the rear roller 5. Two mating gears 11 are sequentially meshed at one end of each driven gear 10. A drive gear 12 is meshed at one end of each mating gear 11. Each mating gear 11 and drive gear 12 is rotatably mounted on the surface of the frame 1. Both drive gears 12 are connected to the tractor's power output shaft. A gearbox 13 is mounted on the outer end of the mating gear 11, drive gear 12, and driven gear 10 on the same side, connecting the drive gear 12 to the tractor's power output shaft. The rotation of the front roller 3 and the rear roller 5 is controlled by the meshing of the drive gear 12 with the two auxiliary gears and the driven gear 10. A pair of bearing seats 2 are mounted at both ends of the frame 1. The front roller 3 and the rear roller 5 are respectively inserted between the two pairs of bearing seats 2. Each bearing seat 2 contains a bearing. Inserted between two pairs of bearing seats 2, each bearing seat 2 has a bearing embedded inside to facilitate the rotation of the front rotary roller 3 and the rear rotary roller 5. Each deep rotary blade 4 and shallow rotary blade 6 is fitted with a fixing bolt 8 at the connection point with the socket 7, thus facilitating the connection and fixation of the deep rotary blade 4 and shallow rotary blade 6 to the socket 7. Each bearing seat 2 is fitted with a set of mounting bolts 9 at the connection point with the frame 1, thus facilitating the installation and fixation of the bearing seat 2. Each deep rotary blade 4, shallow rotary blade 6, and socket 7 is made of steel alloy material, as are the front rotary roller 3 and the rear rotary roller 5, thus ensuring the structural strength and corrosion resistance of the rotary tillage structure.

[0032] Working principle: By designing two rotating roller structures, a front rotating roller 3 and a rear rotating roller 5, with the front rotating roller 3 installed lower than the rear rotating roller 5, and the length of the deep rotating blade 4 of the front rotating roller 3 being greater than the length of the shallow rotating blade 6 of the rear rotating roller 5, the front rotating roller 3 and the deep rotating blade 4 perform initial crushing and returning of the straw to the field. Then, the rear rotating roller 5 and the shallow rotating blade 6 further crush the straw, while simultaneously performing secondary tilling of the soil. The above structural design can better crush and return the straw to the field and till the soil. The drive gear 12 is connected to the power output shaft of the tractor, and the rotation of the front rotating roller 3 and the rear rotating roller 5 can be controlled by the meshing transmission of the drive gear 12 with two auxiliary gears and the driven gear 10. A pair of bearing seats 2 are installed at both ends of the frame 1, and the front rotating roller 3 and the rear rotating roller 5 are respectively inserted between the two pairs of bearing seats 2. Each bearing seat 2 has a bearing embedded inside to facilitate the rotation of the front rotating roller 3 and the rear rotating roller 5.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-rotor structure for a tillage and seeding machine, comprising a frame (1), a front rotary roller (3), and a rear rotary roller (5), characterized in that: The front rotating roller (3) and the rear rotating roller (5) are rotatably mounted on the inner side of the frame (1). Multiple sockets (7) are fixedly provided on the outer ends of the front rotating roller (3) and the rear rotating roller (5). Deep rotating blades (4) are inserted into the multiple sockets (7) on the surface of the front rotating roller (3). Shallow rotating blades (6) are inserted into the multiple sockets (7) on the surface of the rear rotating roller (5). The length of each deep rotating blade (4) is greater than the length of the shallow rotating blade (6). The installation position of the front rotating roller (3) is lower than the installation height of the rear rotating roller (5).

2. The double-rotor structure of a tillage and seeding machine according to claim 1, characterized in that: A driven gear (10) is installed on one side of both the front roller (3) and the rear roller (5). One end of each driven gear (10) is sequentially meshed with two mating gears (11). One end of each mating gear (11) is meshed with a drive gear (12). Each mating gear (11) and drive gear (12) is rotatably mounted on the surface of the frame (1). Both drive gears (12) are connected to the power output shaft of the tractor. A gearbox (13) is installed on the outer end of the mating gear (11), drive gear (12) and driven gear (10) on the same side.

3. The double-rotor structure of a tillage and seeding machine according to claim 1, characterized in that: A pair of bearing seats (2) are installed at both ends of the frame (1). The front roller (3) and the rear roller (5) are respectively inserted between the two pairs of bearing seats (2). Each bearing seat (2) is inlaid with a bearing.

4. The double-rotor structure of a tillage and seeding machine according to claim 1, characterized in that: Each of the deep rotary cutter (4) and shallow rotary cutter (6) is fitted with a fixing bolt (8) at the connection point with the socket (7).

5. The double-rotor structure of a tillage and seeding machine according to claim 3, characterized in that: A set of mounting bolts (9) is installed at the connection position between each bearing housing (2) and the frame (1).

6. The double-rotor structure of a tillage and seeding machine according to claim 1, characterized in that: Each of the deep rotary cutter (4), shallow rotary cutter (6) and socket (7) is made of steel alloy material, and the front rotary roller (3) and rear rotary roller (5) are also made of steel alloy material.