Rice weeding machine

Abstract

A rice weeding machine comprises a driving assembly and a plurality of weeding assemblies arranged in a front-back staggered mode, the distance between every two adjacent weeding assemblies is a rice line distance, and the upper sides of the multiple weeding assemblies are connected through a handrail; the weeding assembly comprises a bottom plate, supporting plates are vertically connected to the left side and the right side of the bottom plate, a cutting groove is formed in the center of the bottom plate, a rotating shaft is rotationally connected between the two supporting plates, a weeding frame is connected to the peripheral face of the rotating shaft, and a plurality of weeding claws are connected to the peripheral face of the weeding frame; the driving assembly is connected with the multiple rotating shafts and used for driving the multiple rotating shafts to rotate in the same direction. According to the weeding device, a front-back staggered mounting mode is adopted, and the distance between the weeding assemblies located in the same row can be increased, so that sundries can pass through the space between the two weeding assemblies, and the blocking condition is reduced; meanwhile, the weeding assembly adopts a bottom plate, in the moving process of the weeding machine, the bottom plate generates downward pressure to press and bury sludge in the field, and therefore the situation that the machine is blocked due to sludge splashing in the weeding process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a rice weeder. BACKGROUND

[0002] Rice is one of the main food crops in China, and water field weeds seriously affect the yield and quality of rice. For a long time, the prevention and control of water field weeds mainly relies on manual weeding and chemical weeding, but manual weeding is low in efficiency and high in labor intensity, and chemical weeding is prone to cause pesticide residues, environmental pollution and weed resistance and other problems. With the popularization of the concept of precision agriculture and sustainable agriculture, mechanical weeding technology has gradually become a research focus. Mechanical weeding can improve soil permeability, accelerate soil nutrient decomposition and improve soil fertility.

[0003] At present, the common mechanical weeding equipment mostly adopts inter-row weeder, for example, the front-mounted rice inter-row mechanical weeder disclosed by Chinese patent CN 215735665U, the weeding devices are arranged side by side, and in the forward process of the weeder, the weeds between the rice are removed by the weeding knives in the weeding devices, but the spacing between each weeding device of this kind of weeder will become very small due to the influence of the row spacing of the rice, and in the weeding process, there will be sundries such as hard soil blocks and stone blocks in the field, which will be blocked between the adjacent two weeding devices in the forward process of the weeder, thereby causing the weeding knives to be blocked and other situations, affecting the normal operation of the weeder. SUMMARY

[0004] The utility model aims at overcoming the defects and problems of easy blocking in weeding in the prior art, and provides a rice weeder which is not easy to block.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows: a rice weeder, comprising a driving assembly and a plurality of weeding assemblies arranged in front of and behind each other, the spacing between two adjacent weeding assemblies is a rice row spacing, and the upper sides of the plurality of weeding assemblies are connected through a handrail.

[0006] The weeding assembly comprises a bottom plate, support plates are vertically connected to the left and right sides of the bottom plate, a cutting groove is formed at the center of the bottom plate, a rotating shaft is rotatably connected between the two support plates, a weeding rack is connected to the outer periphery of the rotating shaft, and a plurality of weeding claws are connected to the outer periphery of the weeding rack.

[0007] The driving assembly is connected with the plurality of rotating shafts, and is used to drive the plurality of rotating shafts to rotate in the same direction.

[0008] The upper side of the bottom plate is connected with an arch, the upper side of the arch located at the rear side is connected with a support frame, the lower end of the handrail is connected to the upper side of the arch located at the front side, and the middle part of the handrail is connected to the upper side of the support frame.

[0009] The handrail comprises a plurality of first connecting rods, two second connecting rods and two handles, one end of the plurality of first connecting rods is connected to the upper side of the plurality of arch supports on the front side, the other end of the plurality of first connecting rods is arranged on the upper side of the support frame, one end of the two second connecting rods is connected to the other end of the two first connecting rods on the outermost side, and the other end of the two handles is connected to the other end of the two second connecting rods.

[0010] The distance between the two handles matches the width of the plurality of weeding components on the front side.

[0011] The driving assembly comprises a support seat, a main shaft, a driving gear, a plurality of driving pulleys and a plurality of driven pulleys, the support seat is connected to the upper side of the handrail, both ends of the main shaft are rotatably connected to the upper side of the support seat through mounting seats, the driving gear and the plurality of driving pulleys are sleeved on the main shaft, the driving gear is connected to the output end of a power device, the plurality of driven pulleys are respectively sleeved on the plurality of rotating shafts and arranged in one-to-one correspondence with the plurality of driving pulleys, and the outer circumferential surfaces of the driving pulleys and the driven pulleys are engaged and connected with a belt.

[0012] The front and rear sides of the bottom plate are obliquely provided with pressing plates, and the pressing plates are trapezoidal.

[0013] The lower side of the bottom plate is symmetrically provided with two guide plates, and the guide plates are V-shaped.

[0014] The weeding frame comprises two spaced wheel frames, the two wheel frames are connected with the rotating shafts, a plurality of supporting rods are connected between the two wheel frames in the circumferential direction, and a plurality of weeding claws are arranged on the outer circumferential surface of the supporting rods.

[0015] The weeding claws are arc-shaped.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、In the rice weeding machine, the spacing between the weeding components in the same row is increased by the front and rear staggered installation mode, so that the spacing between the weeding components in the same row is greater than the row spacing of the rice, so that when the weeding machine moves, hard soil blocks, stones and other sundries in the field can pass between the two weeding components, thereby reducing the blocking condition; the weeding components are designed by the bottom plate, so that the downward pressure of the bottom plate can bury the silt in the field during the movement of the weeding machine, thereby avoiding the silt splashing during weeding to block the machine, and since the weeding claws are provided with the supporting plate and the inside of the bottom plate, the silt and other sundries will first adhere to the bottom plate and the supporting plate, so that the sundries adhered to the weeding claws are relatively less. Therefore, the utility model is not easy to block.

[0018] 2、The utility model discloses a rice weeding machine, and the weeding assembly adopts the staggered installation mode, compared with the existing side-by-side arrangement mode, the reaction force is dispersed when the weeding claw cuts, the machine body vibration is reduced, and the operation is more stable, a driving assembly can drive multiple rotating shafts to rotate, and then all the weeding assemblies carry out weeding operation, and the use is more convenient.

[0019] 3、The utility model discloses a rice weeding machine, multiple weeding assemblies are connected through the support frame and the arch frame, the handrail is set as the form of multiple rod combinations, the spacing of the handle is matched with the width of the weeding assembly on the front side, so that when the weeding assembly is moved through the handrail, the stress of each weeding assembly is more uniform, and the weeding quality is not affected by the uneven stress and the weeding assembly warping, the angle and length of the two second connecting rods can be adjusted according to the body shape of the specific operator, so that it can be suitable for different people, the driving mode of the belt with wheels is adopted, multiple driving pulleys are driven by a main shaft, so that multiple rotating shafts can be driven by only one power equipment without adopting multiple power equipment to control the rotation of each rotating shaft, and the cost is lower. Therefore, the utility model has high reliability, wide use range and low cost.

[0020] 4、The utility model discloses a rice weeding machine, through setting the pressing plate, in the weeding machine advancing process, can slowly press down the weed, and simultaneously cooperates the guide plate and gathers the weed to the middle, so that the weed can be cut by the weeding claw in concentration, and the weeding effect is better, and simultaneously, the spacing of the weeding assembly adjacent to the front and rear is a rice row spacing, through the trapezoidal pressing plate, the rice can be prevented from being tilted after passing through the weeding assembly, the weeding claw adopts the design of arc bending, and the weed can be prevented from accumulating on the weeding claw and affecting subsequent weeding through the action of centrifugal force in the weeding frame rotating process. Therefore, the utility model has high reliability and better weeding effect. DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of the utility model.

[0022] Figure 2 It is the overhead schematic drawing of the utility model.

[0023] Figure 3 It is the side view schematic drawing of the utility model.

[0024] Figure 4 It is the structure schematic drawing of the weeding assembly in the utility model.

[0025] Figure 5 It is the structure schematic drawing of the handrail, the arch frame and the support frame in the utility model.

[0026] Figure 6 Figure is the structural schematic diagram of the driving assembly in the utility model.

[0027] Figure 7 Figure is the structural schematic diagram of the weeding frame and weeding claw in the utility model.

[0028] In the figure: weeding assembly 1, bottom plate 11, support plate 12, cutting groove 13, rotating shaft 14, pressing plate 15, guide plate 16, weeding frame 2, wheel frame 21, support rod 22, weeding claw 3, arch frame 4, support frame 5, driving assembly 6, support seat 61, main shaft 62, driving gear 63, driving pulley 64, driven pulley 65, belt 66, mounting seat 67, handrail 7, first connecting rod 71, second connecting rod 72, handle 73. DETAILED DESCRIPTION

[0029] The utility model is further explained in detail in combination with the description and specific implementation of the accompanying drawings.

[0030] Embodiment 1:

[0031] Referring to Figures 1 to 4 A rice weeder, comprising a driving assembly 6 and a plurality of weeding assemblies 1 arranged in front and back staggered mode, the spacing between two adjacent weeding assemblies 1 is a rice row spacing, and the upper sides of the plurality of weeding assemblies 1 are connected by a handrail 7.

[0032] The weeding assembly 1 comprises a bottom plate 11, support plates 12 are vertically connected to the left and right sides of the bottom plate 11, a cutting groove 13 is formed in the center of the bottom plate 11, a rotating shaft 14 is rotatably connected between the two support plates 12, a weeding frame 2 is connected to the outer circumferential surface of the rotating shaft 14, and a plurality of weeding claws 3 are connected to the outer circumferential surface of the weeding frame 2.

[0033] The driving assembly 6 is connected with the plurality of rotating shafts 14 and is used to drive the plurality of rotating shafts 14 to rotate in the same direction.

[0034] The upper side of the bottom plate 11 is connected with an arch frame 4, the upper side of the arch frame 4 located at the rear side is connected with a support frame 5, the lower end of the handrail 7 is connected to the upper side of the arch frame 4 located at the front side, and the middle part of the handrail 7 is connected to the upper side of the support frame 5.

[0035] In the embodiment, the number of the front row weeding assemblies 1 is two, and the number of the rear row weeding assemblies 1 is three. The weeder is pushed forward by holding the handrail 7, the rotating direction of the weeding frame 2 is clockwise rotation, and the weeds are pressed to the bottom plate 11 during the forward movement of the weeder and are pulled out in the cutting groove 13 by the clockwise rotating weeding claws 3.

[0036] Embodiment 2:

[0037] The basic content is equivalent to example 1, except that:

[0038] Referring to Figure 5 , the handrail 7 comprises a plurality of first connecting rods 71, two second connecting rods 72 and two handles 73, one end of the plurality of first connecting rods 71 is connected to the upper side of the plurality of arches 4 located on the front side, the other end of the plurality of first connecting rods 71 is arranged on the upper side of the support frame 5, one end of the two second connecting rods 72 is connected to the other end of the two first connecting rods 71 located on the outermost side, and the two handles 73 are connected to the other end of the two second connecting rods 72. The distance between the two handles 73 matches the width of the plurality of weeding assemblies 1 located on the front side.

[0039] In this embodiment, the second connecting rod 72 and the first connecting rod 71 can be connected in a detachable manner, by changing the specifications of the second connecting rod 72, so that different groups of people can hold the corresponding height handles 73 to push the weeding machine to move in the field, the second connecting rod 72 is outwardly inclined, and the handle 73 is arranged in parallel.

[0040] Example 3:

[0041] The basic content is equivalent to example 1, except that:

[0042] Referring to Figure 6 , the driving assembly 6 comprises a support seat 61, a main shaft 62, a driving gear 63, a plurality of driving pulleys 64 and a plurality of driven pulleys 65, the support seat 61 is connected to the upper side of the handrail 7, the two ends of the main shaft 62 are rotatably connected to the upper side of the support seat 61 through the mounting seat 67, the driving gear 63 and the plurality of driving pulleys 64 are all sleeved on the main shaft 62, the driving gear 63 is connected with the output end of the power equipment, the plurality of driven pulleys 65 are respectively sleeved on the plurality of rotating shafts 14 and arranged in one-to-one correspondence with the plurality of driving pulleys 64, and the outer circumferential surfaces of the driving pulleys 64 and the driven pulleys 65 are engaged and connected with the belt 66.

[0043] In this embodiment, the belt 66 adopts an O-shaped belt, the driving assembly 6 further comprises a tensioning wheel, the belt 66 is tensioned through the tensioning wheel to prevent the belt from slipping, and the power equipment can adopt a driving motor and the like structure, the output shaft of the driving motor is sleeved with a gear, the gear is connected with the driving gear 63 in the form of meshing, or the gear and the driving gear 63 can be connected through a belt, the driving motor drives the driving gear 63 to rotate, and then drives the main shaft 62 to rotate clockwise.

[0044] Example 4:

[0045] The basic content is equivalent to example 1, except that:

[0046] With reference to Figure 4 , the front and rear sides of the bottom plate 11 are obliquely provided with pressing plates 15, which are trapezoidal. The lower side of the bottom plate 11 is symmetrically provided with two guide plates 16, which are V-shaped.

[0047] In this embodiment, during the forward movement of the weeding machine, the pressing plates 15 contact the weeds and press them downward, while the guide plates 16 gather the weeds together, which are then removed by the weeding claws 3. Since the pressing plates 15 are trapezoidal, the front row of pressing plates 15 and the rear row of pressing plates 15 are arranged in a staggered manner, which can compact the soil to some extent and avoid the situation that the rice is tilted due to soil loosening during the weeding process.

[0048] Embodiment 5:

[0049] The basic content is the same as that of embodiment 1, except that:

[0050] With reference to Figure 7 , the weeding frame 2 includes two wheel frames 21 arranged at intervals, both of which are connected with the rotating shaft 14, and a plurality of support rods 22 are connected between the two wheel frames 21 in the circumferential direction, the outer circumferential surface of the support rod 22 is provided with a plurality of weeding claws 3 at intervals, and the weeding claws 3 are arc-shaped.

[0051] In this embodiment, the wheel frame 21 is connected with the rotating shaft 14 by welding, and during the rotation of the wheel frame 21, the weeding claws 3 contact the weeds from the bottom to the top, and under the action of centrifugal force, the weeds are dug out of the soil.

Claims

1. A rice weeding machine, characterized in that: It includes a drive assembly (6) and multiple weeding assemblies (1) arranged in a staggered manner. The distance between two adjacent weeding assemblies (1) is one rice row spacing. The upper sides of the multiple weeding assemblies (1) are connected by a handrail (7). The weeding component (1) includes a base plate (11), with support plates (12) vertically connected to the left and right sides of the base plate (11). A cutting groove (13) is provided at the center of the base plate (11). A rotating shaft (14) is rotatably connected between the two support plates (12). A weeding frame (2) is connected to the outer circumferential surface of the rotating shaft (14). A plurality of weeding claws (3) are connected to the outer circumferential surface of the weeding frame (2). The drive assembly (6) is connected to the plurality of rotating shafts (14) and is used to drive the plurality of rotating shafts (14) to rotate in the same direction.

2. The rice weeding machine according to claim 1, characterized in that: An arch frame (4) is connected to the upper side of the base plate (11), and a support frame (5) is connected to the upper side of the arch frame (4) located at the rear. The lower end of the handrail (7) is connected to the upper side of the arch frame (4) located at the front, and the middle part of the handrail (7) is connected to the upper side of the support frame (5).

3. A rice weeding machine according to claim 2, characterized in that: The handrail (7) includes a plurality of first connecting rods (71), two second connecting rods (72) and two handles (73). One end of the plurality of first connecting rods (71) is connected to the upper side of the plurality of arch frames (4) located on the front side, and the other end of the plurality of first connecting rods (71) is disposed on the upper side of the support frame (5). One end of the two second connecting rods (72) is connected to the other end of the two outermost first connecting rods (71), and the two handles (73) are connected to the other end of the two second connecting rods (72).

4. A rice weeding machine according to claim 3, characterized in that: The spacing between the two handles (73) matches the width of the plurality of weeding components (1) located on the front side.

5. A rice weeding machine according to claim 2, characterized in that: The drive assembly (6) includes a support base (61), a main shaft (62), a drive gear (63), multiple drive pulleys (64), and multiple driven pulleys (65). The support base (61) is connected to the upper side of the handrail (7). The two ends of the main shaft (62) are rotatably connected to the upper side of the support base (61) through mounting bases (67). The drive gear (63) and multiple drive pulleys (64) are all sleeved on the main shaft (62). The drive gear (63) is connected to the output end of the power equipment. Multiple driven pulleys (65) are respectively sleeved on multiple rotating shafts (14) and arranged in a one-to-one correspondence with multiple drive pulleys (64). The outer circumferential surfaces of the drive pulleys (64) and driven pulleys (65) are meshed with belts (66).

6. A rice weeding machine according to claim 1, characterized in that: The base plate (11) is provided with pressure plates (15) at an incline on the front and rear sides, and the pressure plates (15) are trapezoidal.

7. A rice weeding machine according to claim 1, characterized in that: Two guide plates (16) are symmetrically arranged on the lower side of the base plate (11), and the guide plates (16) are V-shaped.

8. A rice weeding machine according to claim 1, characterized in that: The weeding frame (2) includes two spaced wheel frames (21), both of which are connected to the rotating shaft (14). Multiple support rods (22) are connected between the two wheel frames (21) along the circumferential direction, and multiple weeding claws (3) are spaced on the outer circumferential surface of the support rods (22).

9. A rice weeding machine according to claim 1, characterized in that: The weeding claw (3) is curved in an arc shape.

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