A large-scale rotary cultivator blade holder assembly capable of preventing wrapping by weeds

By introducing a weed cutting and cleaning component into the rotary tiller blade assembly, the tangled weeds are automatically cleared and the blades are cleaned, solving the problems of rotary tiller downtime and poor tilling effect caused by weed entanglement, and achieving stable and efficient tilling operation.

CN224356646UActive Publication Date: 2026-06-16HUBEI SHUANGYU MACHINERY TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI SHUANGYU MACHINERY TECH
Filing Date
2025-06-13
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The blade shaft and blades of existing rotary tillers are easily entangled with weeds, which requires the rotary tiller to be stopped for cleaning, increases resistance and may damage the motor, and results in poor soil turning effect.

Method used

A wide-range rotary tiller blade assembly for preventing weed entanglement has been designed, comprising a rotary tiller weed cutting component and a weed cleaning component. Utilizing components such as an electric telescopic rod, a lower pressure plate, weed cutting blades, a cleaning nozzle, and a cleaning scraper, it automatically removes entangled weeds and cleans the blades, preventing soil adhesion.

🎯Benefits of technology

It achieves automatic weed removal during the tilling process without requiring machine shutdown, maintaining stable operation and good tilling effect of the rotary tiller, and avoiding motor damage and soil interference.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224356646U_ABST
    Figure CN224356646U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of rotary cultivator seat, disclose a kind of wide-range rotary cultivator seat assembly of preventing grass winding, including rotary cultivator seat, the outside of rotary cultivator seat is fixedly installed with connecting plate, the inside of rotary cultivator seat is fixedly installed with mounting plate, the utility model has following advantages and effects: through the rotary cultivator grass cutting assembly being set, rotary cultivator seat is installed above agricultural machinery by connecting plate and fixed bolt, when the situation of grass winding appears in the process of turning over, electric telescopic handle can be opened to drive lower pressing plate to descend, lower pressing plate is pressed to stress plate, slide bar, limit board and grass cutting blade, grass cutting blade can be cut after descending to the grass winding outside rotary cultivator blade, and the grass cut off is thrown out by rotary rotary cultivator blade, so that the device does not need to stop and manual operation when cleaning grass.
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Description

Technical Field

[0001] This utility model relates to the field of rotary tiller blade holder technology, and in particular to a large-area rotary tiller blade holder assembly that prevents weeds from getting entangled. Background Technology

[0002] Rotary tillers are tillage machines that work with tractors to perform tilling and harrowing operations. In existing technology, the main structure of a rotary tiller consists of a suspension frame, a transmission gear mechanism, a cutter shaft, and rotary tillage blades. The rotary tillage blades are connected to the outside of the cutter shaft, and the two ends of the cutter shaft are connected to the inside of the suspension frame. The transmission gear mechanism drives the cutter shaft and rotary tillage blades to rotate, so that the cutter shaft and rotary tillage blades can turn the soil in fields with weeds at the lower end of the suspension frame.

[0003] In existing technology, the blade shaft and blades can get tangled with weeds, which requires the rotary tiller to be stopped during use and the staff to manually clean the weeds. When the blades are tangled with weeds, the resistance increases, which can cause the motor to be damaged due to insufficient power. In addition, the soil on the blades needs to be manually removed after it dries, otherwise the tilling effect will be poor. Utility Model Content

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: including

[0005] A wide-range rotary tiller blade holder assembly for preventing weed entanglement includes a rotary tiller blade holder, a connecting plate fixedly installed on the outer side of the rotary tiller blade holder, an mounting plate fixedly installed on the inner side of the rotary tiller blade holder, and a rotary tiller weed cutting component disposed above the rotary tiller blade holder and the mounting plate.

[0006] The rotary tiller weed cutting assembly includes an electric telescopic rod, a lower pressure plate, a sliding rod, a force-bearing plate, a limiting plate, a spring, and a weed cutting blade. The electric telescopic rod is fixedly installed on the top front and rear sides of the rotary tiller blade holder. The lower pressure plate is fixedly installed on the output end of the electric telescopic rod. Multiple sliding rods are slidably installed on the inner side of the mounting plate. The force-bearing plate is fixedly installed on the top of the sliding rod. The limiting plate is fixedly installed on the bottom of the sliding rod. One end of the spring is fixedly installed on the top four corners of the mounting plate, and the other end of the spring is fixedly installed on the bottom four corners of the force-bearing plate. The weed cutting blade is fixedly installed on the bottom of the limiting plate.

[0007] As a further improvement to the above solution, a first motor is fixedly installed on one side of the rotary tiller blade holder, a drive shaft is fixedly installed at the output end of the first motor, a plurality of rotary tiller blades are fixedly installed on the outside of the drive shaft, and a rotary tiller weed cutting component and a rotary tiller weed cleaning component are provided above the rotary tiller blade holder.

[0008] As a further improvement to the above solution, the rotary tiller weed cutting assembly also includes a cleaning baffle and a cleaning chute. The cleaning baffle is fixedly installed on the inner side of the rotary tiller blade holder, the weed cutting blade is slidably disposed on the inner side of the cleaning baffle, and a plurality of the cleaning chute are formed at the bottom of the cleaning baffle.

[0009] By adopting the above technical solution, the cleaning baffle can scrape away dirt and soil on the weed cutting blade, preventing excessive soil on the weed cutting blade from interfering with the cutting effect.

[0010] As a further improvement to the above solution, the rotary tiller weed removal assembly includes a cleaning nozzle, a water pump, and a water supply pipe. The cleaning nozzle is fixedly installed on one side of the rotary tiller blade holder, the water pump is fixedly installed at the input end of the cleaning nozzle, and the water supply pipe is fixedly installed at the input end of the water pump.

[0011] By adopting the above technical solution, the water supply pipe can supply water to the cleaning nozzle, which can spray water to clean the rotary tiller blades and weed cutter blades, preventing soil from adhering to them, and the water will not spray onto the top of the lead screw, so that the lead screw will not rust during use.

[0012] As a further improvement to the above solution, the rotary tiller weed cleaning assembly also includes a second motor, a lead screw, a guide rod, and a cleaning scraper. The second motor is fixedly installed on the inner wall of one side of the rotary tiller blade holder, the lead screw is fixedly installed on the output end of the second motor, the guide rod is fixedly installed on the inner side of the rotary tiller blade holder, the cleaning scraper is threaded on the outer side of the lead screw, and the cleaning scraper is slidably installed on the outer side of the guide rod.

[0013] By adopting the above technical solution, the cleaning scraper can scrape away dirt below the cleaning baffle and prevent dirt from adhering to it.

[0014] As a further improvement to the above solution, both the first motor and the second motor are provided with protective covers on their outer sides, and both the second motor and the first motor are connected to external power supply cables.

[0015] By adopting the above technical solution, the power supply cable can supply power to the first motor and the second motor, and the protective cover can protect the first motor and the second motor.

[0016] As a further improvement to the above solution, the top of the mounting plate is provided with a sliding groove, the sliding rod is slidably installed on the inner side of the sliding groove, and the outer diameter of the spring is larger than the inner diameter of the sliding groove.

[0017] By adopting the above technical solution, the slide rail facilitates the downward movement of the slide rod and allows the spring to drive the slide rod and the weed cutting blade back to their initial positions.

[0018] As a further improvement to the above solution, a water inlet is provided on one side of the rotary tiller blade holder, and the cleaning nozzle is connected to the water inlet.

[0019] By adopting the above technical solution, the water inlet hole allows the water sprayed by the cleaning nozzle to enter the inner side of the rotary tiller blade holder, and allows the water flow to wash the rotary tiller blades and weed cutting blades.

[0020] As a further improvement to the above solution, the spacing between the plurality of weed cutting blades is the same as the spacing between rotary tillage blades, and the weed cutting blades do not abut against the drive shaft.

[0021] By adopting the above technical solution, the weed cutting blade can cut the weeds wrapped around the drive shaft and the rotary tiller blade after descending, and the rotating rotary tiller blade will throw the cut weeds out. The weed cutting blade and the drive shaft do not come into contact with each other, making the device operate more stably.

[0022] As a further improvement to the above solution, the outer side of the connecting plate is provided with a threaded hole.

[0023] By adopting the above technical solution, the threaded hole makes it easy for the connecting plate to be installed on top of the agricultural machinery equipment by bolts, which makes the installation and disassembly of the rotary tiller blade holder more convenient and quick.

[0024] The beneficial effects of this utility model are:

[0025] 1. This utility model features a rotary tiller weed cutting assembly. The rotary tiller blade holder is mounted on top of the agricultural machinery via a connecting plate and fixing bolts. By controlling the first motor to start, the first motor drives the drive shaft and multiple rotary tiller blades to rotate. After the rotary tiller blades rotate, they can perform soil turning operations. A high-definition industrial camera is installed on the inner side of the rotary tiller blade holder. If weeds become entangled during soil turning, the electric telescopic rod can be activated to lower the lower pressure plate. The lower pressure plate presses down on the force plate, sliding rod, limit plate, and weed cutting blades. After the weed cutting blades descend, they can cut off the weeds entangled on the outside of the rotary tiller blades. The rotating rotary tiller blades then throw off the cut weeds, so that the device does not require stopping the machine or manual operation when clearing weeds.

[0026] 2. This utility model, through the setting of a rotary tiller weed cleaning component, allows the lower pressure plate to rise after the weeds are cut, and the spring to drive the force plate and weed cutting blades back to the initial position. The cleaning groove above the cleaning baffle can scrape away debris above the weed cutting blades, and the water pump is turned on to draw water, allowing the water to flow through the water supply pipe to the cleaning nozzle. The cleaning nozzle can spray and clean the rotary tiller blades and the cleaning baffle, preventing mud and other substances from sticking to the top of the weed cutting blades and the cleaning baffle. After the cleaning scraper moves, it can scrape away stubborn soil. Combined with the rinsing of the water flow, the rotary tiller blades have a better effect during the tilling process. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a large-area rotary tiller blade holder assembly for preventing weed entanglement, as proposed in this utility model.

[0029] Figure 2 This is a cross-sectional structural diagram of a rotary tiller blade holder assembly designed to prevent weed entanglement, as proposed in this utility model.

[0030] Figure 3 This is a partial structural diagram of a rotary tiller blade holder assembly designed to prevent weed entanglement, as proposed in this utility model.

[0031] Figure 4 This is a schematic diagram of the exploded part of a rotary tiller blade holder assembly for preventing weed entanglement, as proposed in this utility model.

[0032] In the diagram: 1. Rotary tiller weed cutting assembly; 2. Rotary tiller weed clearing assembly; 3. Rotary tiller blade holder; 4. Connecting plate; 5. First motor; 6. Drive shaft; 7. Rotary tiller blades; 8. Mounting plate.

[0033] 11. Electric telescopic pole; 12. Lower pressure plate; 13. Slide rod; 14. Force plate; 15. Limiting plate; 16. Spring; 17. Weed cutting blade; 18. Cleaning baffle; 19. Cleaning chute;

[0034] 21. Cleaning nozzle; 22. Water pump; 23. Water supply pipe; 24. Second motor; 25. Lead screw; 26. Guide rod; 27. Cleaning scraper. Detailed Implementation

[0035] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a large-area rotary tiller blade holder assembly for preventing weed entanglement, including a rotary tiller blade holder 3, a connecting plate 4 fixedly installed on the outer side of the rotary tiller blade holder 3, an mounting plate 8 fixedly installed on the inner side of the rotary tiller blade holder 3, and a rotary tiller weed cutting assembly 1 arranged above the rotary tiller blade holder 3 and the mounting plate 8.

[0036] The rotary tiller weed cutting assembly 1 includes an electric telescopic rod 11, a lower pressure plate 12, a sliding rod 13, a force-bearing plate 14, a limiting plate 15, a spring 16, and a weed cutting blade 17. The electric telescopic rod 11 is fixedly installed on the front and rear sides of the top of the rotary tiller blade holder 3. The lower pressure plate 12 is fixedly installed on the output end of the electric telescopic rod 11. Multiple sliding rods 13 are slidably installed on the inner side of the mounting plate 8. The force-bearing plate 14 is fixedly installed on the top of the sliding rods 13. The limiting plate 15 is fixedly installed on the bottom of the sliding rods 13. One end of the spring 16 is fixedly installed on the top four corners of the mounting plate 8, and the other end of the spring 16 is fixedly installed on the bottom four corners of the force-bearing plate 14. The weed cutting blade 17 is fixedly installed on the bottom of the limiting plate 15.

[0037] In this embodiment, a first motor 5 is fixedly installed on one side of the rotary tiller blade holder 3, a drive shaft 6 is fixedly installed at the output end of the first motor 5, a plurality of rotary tiller blades 7 are fixedly installed on the outside of the drive shaft 6, and a rotary tiller weed cutting component 1 and a rotary tiller weed cleaning component 2 are provided above the rotary tiller blade holder 3.

[0038] In this embodiment, the rotary tiller weed cutting assembly 1 also includes a cleaning baffle 18 and a cleaning chute 19. The cleaning baffle 18 is fixedly installed on the inner side of the rotary tiller blade holder 3, and the weed cutting blade 17 is slidably disposed on the inner side of the cleaning baffle 18. Multiple cleaning chute 19 are opened at the bottom of the cleaning baffle 18. A high-definition industrial camera is installed on the inner side of the rotary tiller blade holder 3. If weeds become entangled during the tilling process, the electric telescopic rod 11 can be activated to drive the lower pressure plate 12 to descend. The lower pressure plate 12 presses down on the force plate 14, the sliding rod 13, the limiting plate 15, and the weed cutting blade 17. After the weed cutting blade 17 descends, it can cut off the weeds entangled on the outside of the rotary tiller blade 7, and the cut weeds are thrown out by the rotating rotary tiller blade 7, so that the device does not need to stop or be manually operated when cleaning weeds.

[0039] In this embodiment, the rotary tiller weed cleaning component 2 includes a cleaning nozzle 21, a water pump 22, and a water supply pipe 23. The cleaning nozzle 21 is fixedly installed on one side of the rotary tiller blade holder 3, the water pump 22 is fixedly installed at the input end of the cleaning nozzle 21, and the water supply pipe 23 is fixedly installed at the input end of the water pump 22. The water pump 22 is turned on to draw water and the water flows through the water supply pipe 23 into the cleaning nozzle 21. The cleaning nozzle 21 can spray and clean the rotary tiller blades 7 and the cleaning baffle 18 to prevent mud and other substances from sticking to the top of the weed cutting blades 17 and the cleaning baffle 18.

[0040] By adopting the above technical solution, the water supply pipe 23 can supply water to the cleaning nozzle 21, which can spray water to clean the rotary tiller blade 7 and the weed cutter blade 17, preventing soil from adhering to them, and the water will not spray onto the lead screw 25, so that the lead screw 25 will not rust during use.

[0041] In this embodiment, the rotary tiller weed cleaning component 2 also includes a second motor 24, a lead screw 25, a guide rod 26, and a cleaning scraper 27. The second motor 24 is fixedly installed on the inner wall of one side of the rotary tiller blade holder 3. The lead screw 25 is fixedly installed on the output end of the second motor 24. The guide rod 26 is fixedly installed on the inner side of the rotary tiller blade holder 3. The cleaning scraper 27 is threaded onto the outer side of the lead screw 25 and slidably installed on the outer side of the guide rod 26. A protective cover is provided on the outer side of the lead screw 25 to prevent water from spraying onto the top of the lead screw 25, thus preventing the lead screw 25 from rusting during use.

[0042] In this embodiment, protective covers are provided on the outer sides of both the first motor 5 and the second motor 24, and both the second motor 24 and the first motor 5 are connected to external power supply cables; the protective covers can make the device more stable during use and prevent damage to the drive components.

[0043] In this embodiment, a groove is provided on the top of the mounting plate 8, and the slide rod 13 is slidably installed on the inner side of the groove. The outer diameter of the spring 16 is larger than the inner diameter of the groove. After the weeds are cut, the lower pressure plate 12 can be controlled to rise, and the spring 16 can drive the force plate 14 and the weed cutting blade 17 to move back to the initial position. The cleaning groove 19 above the cleaning baffle 18 can scrape away the debris above the weed cutting blade 17.

[0044] In this embodiment, a water inlet is provided on one side of the rotary tiller blade holder 3, and the cleaning nozzle 21 is connected to the water inlet. The second motor 24 is controlled to drive the lead screw 25 to rotate. After the lead screw 25 rotates, it can drive the cleaning scraper 27 to move through the thread engagement. After the cleaning scraper 27 moves, it can scrape away the stubborn soil. With the flushing of water, the rotary tiller blade 7 has a better effect in turning the soil.

[0045] In this embodiment, the spacing between the multiple weed cutting blades 17 is the same as the spacing between the rotary tiller blades 7, and the weed cutting blades 17 do not abut against the drive shaft 6; if weeds become entangled when the rotary tiller blades 7 are rotating, the weed cutting blades 17 can be lowered to cut the weeds.

[0046] In this embodiment, the outer side of the connecting plate 4 is provided with a threaded hole; the threaded hole makes it easy for the connecting plate 4 to be installed on the top of the agricultural machinery equipment by bolts, and makes it easy for the rotary tiller blade holder 3 to be disassembled and replaced.

[0047] The specific operation is as follows: the rotary tiller blade holder 3 is installed on top of the agricultural machinery through the connecting plate 4 and fixing bolts. The first motor 5 is turned on, which drives the drive shaft 6 and multiple rotary tiller blades 7 to rotate. After the rotary tiller blades 7 rotate, they can turn the soil. A high-definition industrial camera is installed on the inner side of the rotary tiller blade holder 3. If weeds become entangled during the turning process, the electric telescopic rod 11 can be activated to drive the lower pressure plate 12 to descend. The lower pressure plate 12 presses down on the force plate 14, the sliding rod 13, the limit plate 15 and the weed cutting blades 17. After the weed cutting blades 17 descend, they can cut the weeds entangled on the outside of the rotary tiller blades 7. The cut weeds are thrown out by the rotating rotary tiller blades 7, so that the device does not need to stop or be manually operated when clearing weeds.

[0048] After the weeds are cut, the lower pressure plate 12 can be raised, and the spring 16 can drive the force plate 14 and the weed cutting blade 17 to move back to the initial position. The cleaning groove 19 above the cleaning baffle 18 can scrape away the debris above the weed cutting blade 17. The water pump 22 is turned on to draw water and let the water flow through the water supply pipe 23 into the cleaning nozzle 21. The cleaning nozzle 21 can spray and clean the rotary tiller blade 7 and the cleaning baffle 18 to prevent mud and other substances from sticking to the top of the weed cutting blade 17 and the cleaning baffle 18. The second motor 24 is controlled to drive the lead screw 25 to rotate. After the lead screw 25 rotates, it can drive the cleaning scraper 27 to move through the thread engagement. After the cleaning scraper 27 moves, it can scrape away the stubborn soil. With the flushing of the water flow, the rotary tiller blade 7 has a better effect in turning the soil.

Claims

1. A wide-range rotary tiller blade holder assembly for preventing weed entanglement, characterized in that, include: Rotary tiller blade holder (3), a connecting plate (4) is fixedly installed on the outer side of the rotary tiller blade holder (3), an mounting plate (8) is fixedly installed on the inner side of the rotary tiller blade holder (3), and a rotary tiller weed cutting assembly (1) is provided above the rotary tiller blade holder (3) and the mounting plate (8). The rotary tiller weed cutting assembly (1) includes an electric telescopic rod (11), a lower pressure plate (12), a sliding rod (13), a force plate (14), a limiting plate (15), a spring (16), and a weed cutting blade (17). The electric telescopic rod (11) is fixedly installed on the front and rear sides of the top of the rotary tiller blade holder (3). The lower pressure plate (12) is fixedly installed on the output end of the electric telescopic rod (11). Multiple sliding rods (13) are slidably installed on the inner side of the mounting plate (8). The force plate (14) is fixedly installed on the top of the sliding rod (13). The limiting plate (15) is fixedly installed on the bottom of the sliding rod (13). One end of the spring (16) is fixedly installed on the top four corners of the mounting plate (8). The other end of the spring (16) is fixedly installed on the bottom four corners of the force plate (14). The weed cutting blade (17) is fixedly installed on the bottom of the limiting plate (15).

2. The anti-weed entanglement rotary tiller blade holder assembly according to claim 1, characterized in that, A first motor (5) is fixedly installed on one side of the rotary tiller blade holder (3), and a drive shaft (6) is fixedly installed at the output end of the first motor (5). Multiple rotary tiller blades (7) are fixedly installed on the outside of the drive shaft (6). A rotary tiller weed cutting component (1) and a rotary tiller weed cleaning component (2) are provided above the rotary tiller blade holder (3).

3. The anti-weed entanglement rotary tiller blade holder assembly according to claim 1, characterized in that, The rotary tiller weed cutting assembly (1) also includes a cleaning baffle (18) and a cleaning groove (19). The cleaning baffle (18) is fixedly installed on the inner side of the rotary tiller blade holder (3). The weed cutting blade (17) is slidably disposed on the inner side of the cleaning baffle (18). A plurality of the cleaning grooves (19) are opened at the bottom of the cleaning baffle (18).

4. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 2, characterized in that, The rotary tiller weed cleaning assembly (2) includes a cleaning nozzle (21), a water pump (22), and a water supply pipe (23). The cleaning nozzle (21) is fixedly installed on one side of the rotary tiller blade holder (3), the water pump (22) is fixedly installed at the input end of the cleaning nozzle (21), and the water supply pipe (23) is fixedly installed at the input end of the water pump (22).

5. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 2, characterized in that, The rotary tiller weed cleaning assembly (2) also includes a second motor (24), a lead screw (25), a guide rod (26), and a cleaning scraper (27). The second motor (24) is fixedly installed on the inner wall of one side of the rotary tiller blade holder (3). The lead screw (25) is fixedly installed at the output end of the second motor (24). The guide rod (26) is fixedly installed on the inner side of the rotary tiller blade holder (3). The cleaning scraper (27) is threaded onto the outer side of the lead screw (25) and slidably installed on the outer side of the guide rod (26).

6. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 5, characterized in that, The first motor (5) and the second motor (24) are both equipped with protective covers on their outer sides, and the second motor (24) and the first motor (5) are both connected to external power supply cables.

7. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 1, characterized in that, The top of the mounting plate (8) is provided with a sliding groove, the sliding rod (13) is slidably installed on the inner side of the sliding groove, and the outer diameter of the spring (16) is larger than the inner diameter of the sliding groove.

8. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 4, characterized in that, A water inlet is provided on one side of the rotary tiller blade holder (3), and the cleaning nozzle (21) is connected to the water inlet.

9. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 1, characterized in that, The spacing between the plurality of weed cutting blades (17) is the same as the spacing between the rotary tillage blades (7), and the weed cutting blades (17) do not abut against the drive shaft (6).

10. A wide-range rotary tiller blade holder assembly for preventing weed entanglement according to claim 1, characterized in that, The outer side of the connecting plate (4) is provided with a threaded hole.