A rice weeder and method of use thereof

Abstract

The application discloses a rice weeding machine and a use method thereof, which comprises a weeding part connected with a vehicle body, wherein the weeding part comprises a frame and a weeding wheel arranged on the frame; a cleaning wheel is arranged on the frame; the weeding wheel comprises a plurality of weeding rods; a cleaning rod is arranged on the cleaning wheel; a cleaning ring is slidably arranged on the cleaning rod; a first spring is arranged between the cleaning ring and the cleaning wheel; a driving rod is arranged on the cleaning ring; a driving slide rail matched with the driving rod is arranged on the frame; the driving rod is slid along the track of the driving slide rail, so that the cleaning ring is slid outward along the cleaning rod from the center of the cleaning wheel, the device can clean weeds on the weeding wheel in time, prevents the machine from being damaged due to the excessive load of the weeds, simultaneously cleans the weeds remaining in the paddy field, improves the weeding efficiency of the paddy field and greatly reduces the remaining probability of the weeds in the paddy field.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a rice weeding machine and its usage method. Background Technology

[0002] In modern farming operations, rice is usually transplanted using standardized row spacing rice transplanters to improve planting efficiency. After rice is transplanted, weeds will grow between the rows in the paddy field. Nowadays, weed control in paddy fields mainly uses chemical weeding and manual weeding. Chemical weeding produces more pesticide residues and can lead to resistance after long-term use. Manual weeding requires a lot of labor and has low weeding efficiency.

[0003] CN113678587B discloses an unmanned rice inter-row weeding machine and its operating method. It connects the weeding device to the vehicle body via a hydraulic lifting device, and uses an unmanned driving system to drive the vehicle in the paddy field, clearing weeds between rows using the weeding wheels on the weeding device. However, the above-mentioned weeding machine still has the following disadvantages and deficiencies:

[0004] 1. When the weeding device removes weeds between rows, some weeds will still remain in the field after the weeding device rotates. Their roots can survive again after a short rest, which affects the growth of rice.

[0005] 2. When the weeding wheel is rotating, weeds are easily tangled on it. If they are not cleaned in time, the load on the weeding wheel will increase rapidly, which can cause irreversible damage to the weeding wheel and the transmission mechanism. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a rice weeding machine and its usage method.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a rice weeding machine, including a weeding unit connected to the vehicle body.

[0008] In the above scheme, preferably, the weeding unit includes a frame and a plurality of weeding wheels mounted on the frame;

[0009] The frame is equipped with a cleaning wheel that works in conjunction with the weeding wheel to remove weeds tangled in the weeding wheel and in the paddy field;

[0010] The weeding wheel includes a plurality of weeding rods, and the cleaning wheel is provided with a plurality of cleaning rods that can pass alternately through the gaps between adjacent weeding rods;

[0011] A cleaning ring is slidably provided on the cleaning rod, a first spring is provided between the cleaning ring and the cleaning wheel, and a drive rod is provided on the cleaning ring;

[0012] The frame is equipped with a drive slide rail that cooperates with the drive rod. After the drive rod slides along the drive slide rail track, the cleaning ring can slide outward from the center of the cleaning wheel along the cleaning rod.

[0013] In the above scheme, preferably, the weeding rod is provided with a plurality of weeding teeth for clearing weeds, the weeding wheel is vertically rotatable on the frame, the frame is provided with a transmission shaft that cooperates with the weeding wheel, and the rotation shaft is driven by a first bevel gear and a second bevel gear at the upper end of the weeding wheel.

[0014] In the above scheme, preferably, the frame is provided with a collection box, and the cleaning ring can push the weeds wrapped around the cleaning rod into the collection box after sliding along the cleaning rod.

[0015] In the above scheme, preferably, the frame is provided with a cleaning wheel shaft, the cleaning wheel is fixed on the cleaning wheel shaft, and the cleaning wheel shaft and the transmission shaft are synchronously driven by a synchronous pulley and a synchronous belt.

[0016] In the above scheme, preferably, the number of cleaning rods is the same as the number of weeding rods, and the first bevel gear and the second bevel gear have the same number of teeth and module, so that the cleaning wheel and the weeding wheel rotate at the same speed, and the cleaning rods pass through the gaps between the weeding rods in an alternating manner.

[0017] In the above scheme, preferably, the frame is equipped with a floating plate for leveling the paddy field after weeding, and the collection box is placed on the floating plate, which is a hollow floating plate.

[0018] In the above scheme, preferably, the cleaning rod is provided with a plurality of foldable limiting units, the limiting unit including a limiting rod rotatably disposed on the cleaning rod, and a second spring is provided between the limiting rod and the cleaning rod.

[0019] In the above scheme, preferably, the cleaning rod is provided with a groove that cooperates with the limiting rod, and the limiting rod can be hidden in the groove after rotation.

[0020] In the above scheme, preferably, the cleaning ring is guided and slidably disposed on the cleaning rod. After the cleaning ring slides, it can drive the limiting rod to rotate and hide in the groove. The first spring is sleeved on the cleaning rod and its inner wall is in contact with the outer wall of the cleaning rod.

[0021] In the above scheme, a preferred method of using a rice weeding machine is as follows:

[0022] S1: The weeding unit is mounted on the rear of the vehicle body and is connected to the drive shaft through the vehicle body's transmission components, enabling the weeding unit to output power;

[0023] S2: When the vehicle is moving, the drive shaft drives the weeding wheel and the cleaning wheel to rotate synchronously, so that the cleaning rod passes through the gap between adjacent weeding rods in an alternating manner to clean the weeds on the weeding wheel. At the same time, the rotation also cleans the weeds in the paddy field, so that all the weeds are hung on the cleaning rod by the limiting unit.

[0024] S3: When the cleaning ring on the cleaning rod passes through the drive slide rail, it slides outward from the center of the cleaning wheel along the cleaning rod through the sliding trajectory of the drive rod, thus cleaning and pushing out the weeds hanging on the cleaning rod. At the same time, the limiting unit is folded and hidden inside the cleaning rod.

[0025] S4: When the weeds on the cleaning rod are pushed out, they fall into the collection box for storage. At the same time, the floating plate on the frame levels the cleaned paddy field.

[0026] The beneficial effects of the present invention are: the present invention provides a device that can clean weeds on the weeding wheel in a timely manner to prevent it from being overloaded and causing damage to the machine, and at the same time cleans up the weeds remaining in the paddy field, thereby improving the efficiency of weeding in the paddy field and greatly reducing the probability of weeds remaining in the paddy field.

[0027] In addition, the foldable limiting unit can not only effectively hang weeds on the cleaning rod, but also cut the weeds in conjunction with the trough when the cleaning ring pushes them out, so as to reduce the situation of weeds getting tangled. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0029] Figure 2 This is a partial enlarged structural diagram of point A in the present invention.

[0030] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning wheel and the drive slide rail of the present invention.

[0032] Figure 5 This is an enlarged schematic diagram of the limiting unit at point B in this invention. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-5 A rice weeding machine includes a weeding unit connected to the vehicle body. The weeding unit can be hung on the rear of the vehicle body in the direction of travel by a structure such as a hydraulic suspension frame. This is an existing technical structure in agricultural machinery and will not be described in detail here. In addition, the power on the vehicle body can be transmitted to the weeding unit through a universal joint or other transmission method. When traveling, the vehicle body drives the weeding unit to perform weeding operations.

[0034] The weeding unit includes a frame 1 and a plurality of weeding wheels 2 mounted on the frame 1, such as Figure 1 As shown, the weeding wheels 2 are arranged in an equidistant linear array on the frame 1. The distance between adjacent weeding wheels 2 can be set according to the row spacing when transplanting rice seedlings. Preferably, in this embodiment, the center distance between adjacent weeding wheels 2 is 250mm. When in use, the weeding wheels 2 pass through the adjacent rows of rice seedlings in the paddy field to remove weeds between the rows of seedlings.

[0035] The weeding wheel 2 is vertically rotatably mounted on the frame 1, and several weeding rods 2 are evenly fixed on it. The weeding rods 2 are formed radiating outward from the center of the weeding wheel 2, and several weeding teeth 202 are provided on the weeding rods 2. When the weeding wheel 2 rotates, it can entangle and clean the weeds in the paddy field through the weeding teeth 2. The upper end of the weeding wheel 2 is fixed with a second bevel gear 104 through a rotating shaft, which is rotatably mounted on the frame 1. The frame 1 is equipped with a gearbox that is connected to the power components of the vehicle body. The gearbox is equipped with a transmission shaft 102 that outputs rotational force. The transmission shaft 102 is equipped with a first bevel gear 103 that meshes with the second bevel gear 104 on the corresponding frame 1. That is, the gearbox transmits power to the weeding wheel 2 through the meshing of the bevel gears, so that the weeding wheel 2 rotates to clean the weeds in the paddy field when the vehicle body is driven.

[0036] The weeding wheel 2 is located at the front end of the frame 1 in the direction of travel, while the rear end of the frame 1 in the direction of travel is provided with a floating plate 107 that matches the number of weeding wheels 2. After the weeding wheel 2 rotates to stir and remove weeds from the paddy field, the floating plate 107 can be used to level the stirred silt in the paddy field. The floating plate 107 is preferably a hollow floating plate, so that the floating plate 107 can have a certain water draft and leveling force.

[0037] like Figure 3 As shown, the frame 1 is equipped with cleaning wheels 3 that work in conjunction with weeding wheels 2 to simultaneously clean weeds entangled in weeding wheels 2 and in paddy fields. That is, the number of cleaning wheels 3 is matched with the number of weeding wheels 2, so that weeding wheels 2 in each row can be cleaned.

[0038] The frame 1 is equipped with a cleaning wheel shaft 106, which is connected to the drive shaft 102 via a synchronous pulley and a synchronous belt to achieve synchronous rotation of the wheel shaft and the drive shaft. The cleaning wheel 3 is fixed to the cleaning wheel shaft 106 by a key connection, so that the drive shaft 102 can drive the cleaning wheel 3 to rotate. Preferably, the first bevel gear 103 and the second bevel gear 104 have the same number of teeth and module. When the synchronous pulley is driven, its diameter on the cleaning wheel shaft 106 and the drive shaft 102 is also the same. Therefore, the cleaning wheel shaft 106 and the drive shaft 102 rotate at the same speed. Furthermore, the cleaning wheel 3 and the weeding wheel 2 rotate at the same speed.

[0039] The cleaning wheel 3 is evenly provided with a plurality of cleaning rods 301 that can stagger and pass through the gaps between adjacent weeding rods 201. To ensure that the gaps between each weeding rod 201 are cleaned, the number of cleaning rods 301 is preferably equal to the number of weeding rods 201. In this embodiment, six cleaning rods 301 and six weeding rods 201 are provided. Figure 3 As shown, when the weeding wheel 2 rotates, the cleaning wheel 3 rotates synchronously, so that the cleaning rod 301 and the weeding rod 201 are interlaced and adapted to complete the removal of weeds between adjacent weeding rods. That is, after the cleaning rod 301 rotates, the weeds of the weeding wheel 2 can be hung on the cleaning rod 301.

[0040] The cleaning rods 301 are evenly arranged on the circumference of the cleaning wheel 3, and each cleaning rod 301 is fitted with a cleaning ring 302, such as Figure 4 As shown, a first spring 303 is provided between the end face of the cleaning ring 302 near the center of the cleaning wheel 3 and the cleaning wheel 3. The first spring 303 is sleeved on the cleaning rod 301 and its two ends are fixedly connected to the cleaning ring 302 and the cleaning wheel 3. The cleaning ring 302 is preferably guided to slide, that is, the inner hole of the cleaning ring 302 is preferably adapted to the outer shape of the cleaning rod 301, so that the cleaning ring 302 can only slide on the cleaning rod 301 and cannot rotate relative to it.

[0041] After the cleaning ring 302 slides outward from the center of the cleaning wheel 3, it can slide and remove weeds hanging on the surface of the cleaning rod 301. Specifically, a drive rod 304 is fixedly installed on the outer wall of the cleaning ring 302 extending to one side, and a drive slide rail 101 that cooperates with the drive rod 304 is fixedly installed on the frame 1, that is, as shown in the figure. Figure 4 As shown, when cleaning wheel 3 is as Figure 4 When the direction is rotated clockwise, the drive rod 304 enters the groove in the drive slide rail 101. At this time, the cleaning ring 302 slides away from the center of the cleaning wheel 3 under the drive of the drive rod 304, and scrapes the weeds on the cleaning rod 301.

[0042] The drive slide rail 101 is preferably as follows: Figure 4 The arc-shaped slide rail shown is preferably a spiral arc segment, i.e. Figure 4 The drive slide rail 101 shown is offset in an arc shape from bottom to top away from the center of the cleaning wheel 3. The drive slide rail 101 is provided with a groove that cooperates with the drive rod 304, and both ends are open. The lower end is the entry end of the drive rod 304, and the upper end is the exit end. When the drive rod 304 enters the lower end of the drive slide rail 101, it gradually stretches the first spring 303. When it slides out of the upper end of the drive slide rail 101, the stretched first spring 303 resets the cleaning ring 302 under the action of elastic force. The first spring 303 is sleeved on the cleaning rod 301 and its inner wall is in contact with the outer wall of the cleaning rod 301.

[0043] The frame 1 is equipped with a collection box 105. The cleaning ring 302, after sliding along the cleaning rod 301, can push the weeds entangled on the cleaning rod 301 into the collection box 105. The collection box 105 is preferably located on the float 107, i.e., Figure 2 As shown, in this state, the cleaning wheel 3 rotates counterclockwise and the weeding wheel 2 rotates clockwise. When the cleaning wheel 3 rotates counterclockwise, the cleaning rod 301 slides from the paddy field into the gap between the weeding rods 201 so that the weeds are all hung on the cleaning rod 301. Then the drive rod 304 enters the lower end of the drive slide rail 101. As the cleaning rod 301 rotates, the cleaning ring 302 slides to push the weeds on the rod into the collection box 105 for collection. The collection box 105 can be provided with a hollow groove to prevent the cleaning rod 301 from touching the ground.

[0044] The cleaning rod 301 is provided with a plurality of foldable limiting units 4. Each limiting unit 4 includes a limiting rod 401 rotatably mounted on the cleaning rod 301. A second spring 402 is provided between the limiting rod 401 and the cleaning rod 301. The cleaning rod 301 is provided with a groove 403 that cooperates with the limiting rod 401. The groove 403 is located on the outer wall of the cleaning rod 301, and its groove direction is parallel to the axis of the cleaning rod 301.

[0045] The limiting rod 401 can be hidden inside the groove 403 after rotation, such as Figure 4 As shown, when the cleaning ring 302 slides away from the center of the cleaning wheel 3, it can abut against the outer wall of the limiting rod 401, causing the limiting rod 401 to rotate towards the bottom of the groove 403 and eventually hide inside the groove 403. The cleaning ring 302 can then pass smoothly through the hidden limiting rod 401. At the same time, after the first spring 303 is stretched, it keeps the limiting rod 401 in a hidden state, so that the cleaning ring 302 can also pass smoothly through the limiting rod 401 when it resets.

[0046] The limiting rod 401 can be rotatably mounted on both ends of the trough 403 via a pin. During the rotation of the limiting rod 401, the cut ends on both sides of the limiting rod 401 can cooperate with the side wall of the trough 403 to cut the weeds hanging on the cleaning rod 301, thereby facilitating storage and cleaning.

[0047] The method of using a rice weeding machine as described above is as follows:

[0048] S1: The weeding unit is mounted on the rear of the vehicle body and is connected to the drive shaft 102 through the transmission components of the vehicle body so that the weeding unit can output power;

[0049] S2: When the vehicle is moving, the drive shaft 102 drives the weeding wheel 2 and the cleaning wheel 3 to rotate synchronously, so that the cleaning rod 301 passes through the gap between adjacent weeding rods 201 in an alternating manner. Initially, the limiting rod 401 is in the open state, which cleans the weeds on the weeding wheel 2. At the same time, when rotating, it cleans the weeds in the paddy field simultaneously, so that all the weeds are hung on the cleaning rod 301 through the limiting unit 4.

[0050] S3: When the cleaning ring 302 on the cleaning rod 301 passes through the drive slide rail 101, it slides outward from the center of the cleaning wheel 3 along the cleaning rod 301 through the sliding trajectory of the drive rod 304, thus cleaning and pushing out the weeds hanging on the cleaning rod 301. At the same time, the limiting unit 4 is folded and hidden inside the cleaning rod 301.

[0051] S4: When the limiting rod 401 on the limiting unit 4 rotates and hides, its two end faces cooperate with the trough 403 to cut the weeds fixed on the cleaning rod 301, making it easier to store and clean.

[0052] S5: When the weeds on the cleaning rod 301 are pushed out, they fall into the collection box 105 for storage. At the same time, the floating plate 107 on the frame 1 levels the cleaned paddy field.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rice weeding machine, comprising a weeding unit connected to a vehicle body, characterized in that: The weeding unit includes a frame (1) and several weeding wheels (2) mounted on the frame (1); The frame (1) is equipped with a cleaning wheel (3) that works in conjunction with the weeding wheel (2) to clean up weeds entangled in the weeding wheel (2) and in the paddy field. The weeding wheel (2) includes a plurality of weeding rods (201), and the cleaning wheel (3) is provided with a plurality of cleaning rods (301) that can pass alternately through the gaps between adjacent weeding rods (201). A cleaning ring (302) is slidably provided on the cleaning rod (301), a first spring (303) is provided between the cleaning ring (302) and the cleaning wheel (3), and a drive rod (304) is provided on the cleaning ring (302). The frame (1) is provided with a drive slide rail (101) that cooperates with the drive rod (304). After the drive rod (304) slides along the track of the drive slide rail (101), the cleaning ring (302) can slide outward from the center of the cleaning wheel (3) along the cleaning rod (301). The frame (1) is equipped with a collection box (105), and the cleaning ring (302) can slide along the cleaning rod (301) to remove the entanglement. The weeds on the cleaning rod (301) are pushed into the collection box (105).

2. The rice weeding machine according to claim 1, characterized in that: The weeding rod (201) is provided with a number of weeding teeth (202) for clearing weeds. The weeding wheel (2) is vertically rotatably mounted on the frame (1). The frame (1) is provided with a drive shaft (102) that cooperates with the weeding wheel (2). The drive shaft (102) is driven by a first bevel gear (103) and a second bevel gear (104) at the upper end of the weeding wheel (2).

3. A rice weeding machine according to claim 2, characterized in that: The frame (1) is provided with a cleaning wheel shaft (106), the cleaning wheel (3) is fixed on the cleaning wheel shaft (106), and the cleaning wheel shaft (106) and the transmission shaft (102) are synchronously driven through a synchronous pulley and a synchronous belt.

4. A rice weeding machine according to claim 3, characterized in that: The number of cleaning rods (301) is the same as the number of weeding rods (201). The first bevel gear (103) and the second bevel gear (104) have the same number of teeth and module, so that the cleaning wheel (3) and the weeding wheel (2) rotate at the same speed, and the cleaning rods (301) pass through the gaps between the weeding rods (201) in an alternating manner.

5. A rice weeding machine according to claim 4, characterized in that: The frame (1) is equipped with a floating plate (107) for leveling the paddy field after weeding, and the collection box (105) is located on the floating plate (107). The floating plate (107) is a hollow floating plate.

6. A rice weeding machine according to claim 5, characterized in that: The cleaning rod (301) is provided with a plurality of foldable limiting units (4). The limiting unit (4) includes a limiting rod (401) rotatably disposed on the cleaning rod (301). A second spring (402) is provided between the limiting rod (401) and the cleaning rod (301).

7. A rice weeding machine according to claim 6, characterized in that: The cleaning rod (301) is provided with a groove (403) that cooperates with the limiting rod (401). After the limiting rod (401) rotates, it can be hidden in the groove (403).

8. A rice weeding machine according to claim 7, characterized in that: The cleaning ring (302) is slidably mounted on the cleaning rod (301). After the cleaning ring (302) slides, it can drive the limiting rod (401) to rotate and hide in the groove (403). The first spring (303) is sleeved on the cleaning rod (301) and its inner wall is in contact with the outer wall of the cleaning rod (301).

9. The method of using the rice weeding machine as described in claim 8, characterized in that: Its usage method is as follows: S1: The weeding unit is mounted on the rear of the vehicle body and is connected to the drive shaft (102) through the transmission components of the vehicle body so that the weeding unit can output power; S2: When the vehicle is moving, the drive shaft (102) drives the weeding wheel (2) and the cleaning wheel (3) to rotate synchronously, so that the cleaning rod (301) passes through the gap between the adjacent weeding rods (201) to clean the weeds on the weeding wheel (2), and at the same time, the weeds in the paddy field are cleaned synchronously when rotating, so that all the weeds are hung on the cleaning rod (301) through the limiting unit (4); S3: When the cleaning ring (302) on the cleaning rod (301) passes through the drive slide rail (101), the cleaning ring (302) slides outward from the center of the cleaning wheel (3) along the cleaning rod (301) through the sliding trajectory of the drive rod (304), and pushes out the weeds hanging on the cleaning rod (301). At the same time, the limiting unit (4) is folded and hidden inside the cleaning rod (301). S4: When the weeds on the cleaning rod (301) are pushed out, they fall into the collection box (105) for storage. At the same time, the floating plate (107) on the frame (1) levels the cleaned paddy field.

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