Roll-type forest weeding device

Abstract

A roller-rolling type forest weeding device relates to the field of weeding devices and comprises a frame, a roller frame, a collecting container, an upper roller, a lower roller, an air blower, a first motor and a suction hood, the frame and the roller frame are integrally connected, the collecting container is loaded on the frame, and the upper roller and the lower roller are correspondingly arranged and connected with a rotating shaft of the roller frame in a matched mode. The air blower and the first motor are installed on the roller frame, the first motor is a double-output-shaft motor, an output shaft on one side is connected with the air blower in a matched mode, the other side of the first motor is connected with the upper winding roller in a matched mode, the lower winding roller is connected with the upper winding roller in a gear transmission matched mode, and the upper space of the collecting container is communicated with the air blower. According to the weeding device, weeds on the ground are pulled out or snapped in a double-winding-roller matched rolling and pulling mode, the pulled-out or snapped weeds on the ground can be directly sucked and collected between roller surfaces, and efficient collection and thorough removal of the pulled-out and snapped weeds are achieved.

Description

Technical Field

[0001] This utility model relates to the field of weeding devices, specifically to a roller-type weeding device for forest areas. Background Technology

[0002] In forestry production, excessively tall weeds in forest areas often cause various harms to trees, including: competing for nutrients and water, inhibiting tree growth and causing slow growth; affecting ventilation and light exposure, affecting photosynthesis and causing stunted development; easily breeding pests and diseases, increasing the tendency for pests and diseases to occur and harming the health of trees; stems and leaves entangle tree trunks and branches, hindering tree growth and reducing the morphological quality of trees; and dry weeds are easily ignited, increasing the risk of fire and posing a serious safety hazard. Therefore, it is necessary to remove excessively tall weeds in a timely manner during forest management. Eco-friendly mechanical weeding methods are widely used in production. However, since mechanical weeding mainly relies on shoveling and cutting, the weeds after shoveling or cutting are usually scattered messily in the forest area and cannot be collected and removed efficiently and thoroughly. These residual weeds still pose a threat to the trees in the forest area, making it impossible to completely eliminate the hidden dangers such as the induction of pests and diseases and the risk of fire. Moreover, long-term accumulation can not only make the ground slippery and endanger the safety of patrol personnel, but may also change the activity of microorganisms in the soil and the natural structure of the soil, which is not conducive to the maintenance and improvement of fertility. A utility model patent (CN221264463U) discloses a "forestry machinery surround weeding device" addressing the problem of weed collection and removal in forest areas. Specifically, it discloses a technique using a blower to collect weeds cut from the ground. However, it is obvious that the weeds cut by the blades are scattered naturally on the ground. The collection pipe, placed at the bottom of the base plate, is limited by the overall structure of the weeding device; its aperture is small and its distance from the ground is large, resulting in extremely limited impact on the ground and failing to achieve efficient and thorough collection and removal of the cut weeds. Therefore, it is necessary to research and develop a weeding method and its application device that facilitate efficient and thorough collection and removal of ground weeds, thus solving the problems of the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide a roller-type weeding device for forest areas, which uses rollers in conjunction with a rolling and pulling method to remove weeds from the ground, avoiding the scattered weeds, and achieving efficient and thorough collection and removal of weeds that have been rolled, pulled out, or broken.

[0004] A roller-type weeding device for forest areas includes: a frame, a roller frame, a collection container, an upper roller, a lower roller, a blower, a first motor, and a suction hood. The frame is a running support with wheels, the roller frame is integrally connected to the frame, and the collection container is fixedly mounted on the frame. The upper and lower rollers have parallel shafts, their surfaces are in contact with each other, and they are correspondingly arranged. They are connected to the lower part of the roller frame through a rotating shaft. The blower and the first motor are fixedly installed on the upper part of the roller frame. The motor is a dual-output shaft motor. One output shaft is connected to the blower coupling to drive the blower, while the other output shaft is connected to the upper roller belt drive to rotate the upper roller. The lower roller is connected to the upper roller via gear transmission, allowing the upper roller to drive the lower roller to rotate synchronously in the opposite direction. During rotation, the mating roller surfaces guide and pull weeds from the ground between the upper and lower rollers, utilizing the combined rolling and pulling action of the upper and lower rollers to remove weeds from the front. The ground weeds are pulled out entirely or their stems are broken to remove them. The collection container is a sealed tank with a primary filter installed inside. The primary filter divides the internal space of the collection container into upper and lower independent spaces. The upper space of the primary filter is connected to the air inlet of the blower, and the lower space of the primary filter has a suction port connected to a suction hood installed externally. The opening of the suction hood is located on the rear side of the upper and lower rollers. The body covers the contact area between the upper and lower rollers. When the first motor starts and drives the blower to operate, and simultaneously drives the upper roller to rotate, the suction effect of the blower can create a negative pressure state inside the collection container. The negative pressure inside the collection container can be drawn by the suction hood to the weed stems and leaves behind the upper and lower rollers, and the weed stems and leaves are collected into the collection container through the suction port, thus preventing the weed stems and leaves that have been pulled out and broken from the ground from scattering on the forest floor.

[0005] The roller-type weeding device for forest areas further includes: a turbine disk and a second motor. The second motor is installed at the top of the collection container, and the power output shaft of the second motor extends vertically into the lower space inside the collection container and is connected to the horizontally arranged turbine disk coupling to drive the turbine disk to rotate. Preferably, the turbine disk has an axially through airflow channel to minimize the obstruction of airflow between the upper and lower spaces by the turbine disk. At the same time, a turbine filter screen is installed in the airflow channel to prevent weed stems and leaves from entering the airflow channel and avoid potential accumulation and blockage of the airflow channel.

[0006] The aforementioned roller-type weeding device for forest areas preferably has rubber layers applied to the surfaces of the upper and lower rollers to increase the friction between them, enhance their ability to guide and reel in weeds, and simultaneously give the surfaces of the upper and lower rollers a certain degree of elastic deformation. This reduces the tendency to break the stems and leaves of weeds during the interaction and pulling process, allowing more weeds to be pulled out of the ground as a whole, thus improving the weed removal effect.

[0007] The aforementioned roller-type weeding device for forest areas preferably features spiral raised lines on the rubber layers laid on the surfaces of the upper and lower rollers. These spiral raised lines spiral symmetrically from both ends toward the center of the upper and lower rollers, with the spiraling directions corresponding to the working rotation directions of the upper and lower rollers. This allows the upper and lower rollers to guide the weeds towards the center during their rotational pulling process. Due to the airflow boundary effect, the center of the suction hood has a relatively stronger suction capacity. Therefore, the clustering of the pulled-out weed stems and leaves in the central region of the upper and lower rollers improves the suction efficiency and effect of the suction hood, further increasing the recovery and collection rate of the weed stems and leaves.

[0008] The aforementioned roller-type weeding device for forest areas preferably has a sealing plate installed on the opening of the suction hood. The sealing plate is made of elastic material and is respectively disposed on the edges of the suction hood opening corresponding to the upper and lower rollers. It contacts and engages with the upper and lower rollers in the working rotation direction of the upper and lower rollers. The sealing plate reduces the openness of the suction hood relative to the external space, ensures the negative pressure intensity inside the suction hood, and improves the collection effect of weed stems and leaves. At the same time, the forward elastic contact between the sealing plate and the roller surfaces of the upper and lower rollers not only prevents weed stems and leaves from adhering to the roller surfaces and overflowing from the suction hood as the upper and lower rollers rotate, thus affecting the collection efficiency of weed stems and leaves, but also dynamically scrapes away soil and other debris adhering to the roller surfaces of the upper and lower rollers, ensuring the guiding and winding function of the upper and lower rollers for ground weeds and improving the weeding effect.

[0009] The aforementioned roller-type forest weeding device preferably has a secondary filter installed on the collection container and the air inlet of the blower. The mesh size of the secondary filter is smaller than that of the primary filter, which can further filter out fine particles in the airflow after the primary filter, reducing the amount of particulate impurities that enter the blower with the airflow and affect the working state of the blower, ensuring the stability of the blower's operation, and enhancing the reliability of the weeding function.

[0010] In the aforementioned roller-type weeding device for forest areas, the diameter of the upper roller is preferably larger than the diameter of the lower roller, thereby increasing the effective length of the upper roller in guiding and dispersing weeds on the ground and improving the effect of guiding and retracting the weeds.

[0011] The beneficial effects of this utility model are that it provides an eco-friendly roller-type weeding device for forest areas. It uses a double-roller system with a rolling and pulling method to pull out or break weeds from the ground. This weeding method overcomes the drawbacks of existing weeding methods that primarily rely on shoveling and cutting, which inevitably result in broken weeds scattering across the forest floor. By integrating a weed collection system consisting of a collection container, a blower, a suction hood, and a first electric motor, it can directly extract and collect pulled or broken weeds from the ground between the upper and lower rollers and collect them in the collection container. This fundamentally solves the technical problem of not being able to efficiently and thoroughly collect and remove broken weeds scattered on the ground. Applied to daily forest management activities in forest areas, it can efficiently and thoroughly collect and remove pulled-out weeds and broken weed stems and leaves, preventing them from scattering and harming tree growth and posing safety hazards to patrol personnel. It also helps protect the ecological environment, maintain and improve soil fertility, and has outstanding environmental benefits. Attached Figure Description

[0012] Figure 1 This is a front view of a roller-type weeding device for forest areas.

[0013] Figure 2 This is a front sectional view of a roller-type weeding device for forest areas.

[0014] Figure 3 for Figure 2 Enlarged view of section I in the middle.

[0015] Figure 4 This is a top view of a roller-type weeding device for forest areas.

[0016] Figure 5 Left view of a roller-type weeding device for forest areas.

[0017] Among them: 1 is the frame, 2 is the roller frame, 3 is the collection container, 4 is the upper roller, 5 is the lower roller, 6 is the blower, 7 is the first electric motor, 8 is the turbine disc, 9 is the second electric motor, 10 is the rubber layer, 11 is the primary filter screen, 12 is the suction hood, 13 is the running wheel, 14 is the secondary filter screen, 15 is the spiral raised line, 16 is the driving gear, 17 is the driven gear, 18 is the push rod, 19 is the sealing door, 20 is the side frame plate, 21 is the turbine filter screen, 22 is the sealing plate, and 23 is the handle. Detailed Implementation

[0018] Furthermore, the technical solution for which protection is sought in this utility model will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] A roller-type weeding device for forest areas, such as Figures 1 to 5 As shown, it consists of a frame 1, a roller frame 2, a collection container 3, an upper roller 4, a lower roller 5, a blower 6, a first electric motor 7, a turbine disk 8, a second electric motor 9, a suction hood 12, a secondary filter screen 14, a drive gear 16, a driven gear 17, and a sealing plate 22.

[0020] The frame 1 is equipped with four balanced running wheels 13 and a push rod 18. A handle 23 is provided on the push rod 18. The roller frame 2 is fixedly connected to the front end of the frame 1, and symmetrically arranged side frame plates 20 are installed on both sides of the bottom. The upper winding roller 4 and the lower winding roller 5 are correspondingly arranged at the lower part of the roller frame 2 and are respectively connected to the rotating shafts of the side frame plates 20 on both sides. A drive gear 16 is fixedly installed at both ends of the upper winding roller 4, and a driven gear 17 is fixedly installed at both ends of the lower winding roller 5. The driven gears 17 are respectively arranged correspondingly to the drive gears 16 and form a transmission engagement. The roller surfaces of the upper winding roller 4 and the lower winding roller 5... Rubber layers 10 are respectively applied to the upper and lower rollers 4 and 5, respectively. Spiral raised lines 15 are provided on the rubber layers 10. The spiral raised lines 15 spiral symmetrically spiral from both ends of the upper roller 4 and the lower roller 5 towards the center. Within the corresponding mating area, the spiral raised lines 15 on the upper roller 4 and the lower roller 5 rotate in opposite directions. The blower 6 and the first motor 7 are fixedly installed on the upper part of the roller frame 2. The first motor 7 is a dual-output shaft motor; one output shaft is connected to the blower 6 via a coupling, and the other output shaft is connected to the upper roller 4 via a belt drive. The collection box 3 is a cylindrical sealed tank, fixedly mounted on the frame 1. A discharge port is provided on one side of the tank. A corresponding openable sealing door 19 is provided, and a horizontally arranged primary filter screen 11 is installed inside, dividing the internal space of the collection container 3 into an upper space and a lower space. The upper space is connected to the air inlet of the blower 6. A secondary filter screen 14 with a mesh size smaller than that of the primary filter screen 11 is installed on the air inlet. A suction port is provided in the lower space, and the suction port is connected to a suction hood 12 located outside the collection container 3. The opening of the suction hood 12 covers the rear side of the area where the upper roller 4 and the lower roller 5 cooperate, and both sides are fixedly connected to the side frame plate 20. Sealing plates 22 are respectively installed on the side edges corresponding to the upper roller 4 and the lower roller 5. The sealing plates 22 are made of elastic rubber material and are in contact with the upper roller 4 and the lower roller 5 respectively. The second motor 9 is installed at the top of the collection container 3 and is linked and controlled with the first motor 7. The power output axis extends vertically into the inside of the collection container 3 until it reaches the lower space below the primary filter screen 11. The turbine disk 8 is located in the lower space and is fixedly connected to the power output shaft of the second motor 9. An axially penetrating airflow channel is provided on the turbine disk 8, and a turbine filter screen 21 is installed in the airflow channel.

[0021] The working principle of the roller-type forest weeding device described in this embodiment is as follows: After the first motor 7 starts, it simultaneously drives the upper roller 4 to rotate and the blower 6 to operate. The rotating upper roller 4 can drive the lower roller 5 to rotate synchronously in the opposite direction through the transmission cooperation between the driving gear 16 and the driven gear 17. During the rotation, the upper roller 4 and the lower roller 5 can cooperate to guide and roll the ground weeds between them and roll them up, pulling the ground weeds out of the ground as a whole or breaking the stems. The rubber layer 10 on the roller surface can enhance the ability of the upper roller 4 and the lower roller 5 to guide and roll up the ground weeds, while the spiral protrusions 15 set on the rubber layer 10 can guide the ground weeds to gather and concentrate in the middle of the upper roller 4 and the lower roller 5 during the rotation and rolling process. The operation of the blower 6 can draw in the suction and collection container 3 to form a negative pressure in the internal space. The effect of the negative pressure can make the weeds gathered by the roller 4 and the lower roller 5 rotate and roll them up. The weeds pulled out or broken by the upper roller 4 and the lower roller 5 are drawn into the collection container 3 by the suction hood 12. The rotation of the turbine disk 8 inside the collection container 3 generates a vortex airflow, causing the weeds and weed stems and leaves entering the collection container 3 from the suction port to rotate. Under the action of centrifugal force, the weeds and weed stems and leaves gradually approach the side wall of the collection container 3. As the vertical airflow velocity in the area near the side wall gradually decreases, the weeds and weed stems and leaves can naturally fall to the bottom of the collection container 3 and be collected and recycled under their own gravity. During the recycling process, the turbine filter 12, the primary filter 11 and the secondary filter 14 can purify and filter the airflow in the collection container 3 in sequence, preventing the weeds, weed stems and leaves and other impurities from escaping from the collection container 3, and ensuring the working state of the blower 6 and the turbine disk 8.

[0022] The application of the roller-type forest weeding device described in this embodiment in forestry production is as follows: The operator moves the functionally confirmed roller-type forest weeding device to the weeding operation area in the forest area, and starts the first motor 7 and the second motor 9 in conjunction. After a stable negative pressure is formed in the collection container 3, the operator operates the handle 23 and the push rod 18 to push the roller-type forest weeding device forward at a uniform speed. During the pushing process, the pushing speed is adjusted according to the observed weeding effect until the best effect is achieved. When the collection container 3 is filled with weeds and their stems and leaves, the first motor 7 and the second motor 9 are temporarily stopped. The operator opens the sealing door 19 to remove the weeds and their stems and leaves from the collection container 3. After emptying the collection container 3, the sealing door 19 is sealed and closed. Then, the first motor 7 and the second motor 9 are restarted to continue the weeding operation until the weeding operation of the entire weeding operation area is completed. The whole operation process is simple and easy to control, and it can realize the pulling out and breaking of weeds without them falling to the ground but directly collecting and removing them. The removal effect is good and the weeding efficiency is high.

Claims

1. A roller-type weeding device for forest areas, characterized in that, include: The vehicle frame (1), roller frame (2), collection container (3), upper roller (4), lower roller (5), blower (6), first motor (7), and suction hood (12) are included. The vehicle frame (1) is a running carrier with wheels (13). The roller frame (2) is integrally connected to the vehicle frame (1). The collection container (3) is fixedly mounted on the vehicle frame (1). The roller shafts of the upper roller (4) and the lower roller (5) are parallel to each other, and their roller surfaces are in contact with each other and are arranged correspondingly. They are connected to the lower part of the roller frame (2) with the rotating shaft of the roller frame (2). The blower (6) and the first motor (7) are fixedly installed on the upper part of the roller frame (2). The first motor (7) is a dual-output shaft motor. One output shaft is connected to the coupling of the blower (6), and the other output shaft is connected to the upper roller (4). The belt drive is connected to the upper roller (4), and the gear drive is connected to the lower roller (5). The upper roller (4) can drive the lower roller (5) to rotate synchronously in the opposite direction. The collection container (3) is a sealed tank with a primary filter screen (11) installed inside. The primary filter screen (11) divides the internal space of the collection container (3) into two independent spaces, upper and lower. The upper space of the primary filter screen (11) is connected to the air inlet of the blower (6). A suction port is opened in the lower space of the primary filter screen (11) and connected to the suction hood (12) installed on the outside. The opening of the suction hood (12) is correspondingly set on the rear side of the upper roller (4) and the lower roller (5), and the entire area of ​​the contact between the upper roller (4) and the lower roller (5) is covered.

2. The roller-type weeding device for forest areas as described in claim 1, characterized in that, Also includes: The turbine disk (8) and the second motor (9) are installed at the top of the collection container (3). The power output shaft of the second motor (9) extends vertically into the lower space inside the collection container (3) and is connected to the turbine disk (8) by a coupling that is set horizontally, so as to drive the turbine disk (8) to rotate.

3. The roller-type weeding device for forest areas as described in claim 2, characterized in that: The turbine disk (8) has an axially through airflow channel, and a turbine filter (21) is installed in the airflow channel.

4. A roller-type weeding device for forest areas as described in any one of claims 1 to 3, characterized in that: A rubber layer (10) is respectively applied to the roller surfaces of the upper roller (4) and the lower roller (5).

5. The roller-type weeding device for forest areas as described in claim 4, characterized in that: Spiral raised lines (15) are provided on the rubber layer (10) on the roller surface of the upper roller (4) and the lower roller (5). The spiral raised lines (15) spiral symmetrically advance from both ends to the middle on the upper roller (4) and the lower roller (5). The spiral direction corresponds to the working rotation direction of the upper roller (4) and the lower roller (5), so that the upper roller (4) and the lower roller (5) can guide the ground weeds to gather and concentrate in the middle during the process of rotating and rolling the ground weeds.

6. The roller-type weeding device for forest areas as described in claim 5, characterized in that: A sealing sheet (22) is installed on the opening of the suction hood (12). The sealing sheet (22) is made of elastic material and is respectively set on the edge of the opening of the suction hood (12) corresponding to the upper roller (4) and the lower roller (5). It is in contact with the upper roller (4) and the lower roller (5) respectively along the working rotation direction of the upper roller (4) and the lower roller (5).

7. The roller-type weeding device for forest areas as described in claim 6, characterized in that: A secondary filter screen (14) is installed on the air inlet of the collection container (3) and the blower (6). The mesh size of the secondary filter screen (14) is smaller than that of the primary filter screen (11).

8. The roller-type weeding device for forest areas as described in claim 7, characterized in that: The diameter of the upper roller (4) is larger than the diameter of the lower roller (5).

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