Forest seedling root cutting machine

Abstract

The invention belongs to the field of seedling root cutting tools, and particularly relates to a forest seedling root cutting machine which comprises a frame and a root cutting knife rest, and wheels are mounted on supporting legs of the frame; the root cutting knife rest is mounted on the frame; a cutting knife is mounted on a rotating shaft at the bottom of the root cutting knife rest; the root cutting knife rest can drive the cutting knife to move up and down, so that the cutting knife approaches the ground or is lifted; the torque output mechanism on the root cutting knife rest is used for driving the cutting knife to rotate, so that the cutting knife shovels in from the ground on one side of the forest seedling and penetrates out from the ground on the other side of the forest seedling, and one-time forest seedling root cutting operation is completed; according to the forest seedling root cutting machine, root cutting operation of multiple columns of forest seedlings can be completed at a time, the working efficiency is multiplied, when the forest seedling root cutting machine is operated, movement of the frame, lifting of the root cutting tool rest and starting and stopping of the torque output mechanism of the cutting tool can be completed only by controlling one handlebar, and the forest seedling root cutting machine is easy to operate and convenient to use. And the labor intensity is low during working. The whole forest seedling root cutting machine is not provided with a complex structure and is easy to manufacture.

Description

Technical Field

[0001] The invention belongs to the field of seedling root cutting tools, and in particular relates to a forest seedling root cutting machine. Background Art

[0002] In the process of tree planting, in order to ensure the quality requirements of seedlings such as many lateral roots, short main roots, and large root diameter, manual digging is generally used to achieve seedling root removal, and the seedlings are replanted after root removal. In the prior art, ordinary shovels are usually used to dig out the seedlings, and the roots of the seedlings are only cut off by the end of the shovel during root removal. The labor is large, the time is long, and the work efficiency is low. Due to the shortage of labor in large-scale seedling planting nurseries, there is an urgent need for mechanical root removal tools that can complete the root removal of multiple rows of seedlings in one operation and have high working efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the above shortcomings and meet the needs of modern large-scale seedling planting, and to provide a seedling root cutter that can cut off the roots of multiple rows of seedlings in a single stroke.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a forest seedling root cutter, comprising a frame and a root cutter frame, wherein wheels are installed on the legs of the frame;

[0005] The root cutting knife holder is installed on the frame, and a cutting knife is installed on the rotating shaft at the bottom of the root cutting knife holder; the root cutting knife holder can drive the cutting knife to move up and down, so that the cutting knife is close to the ground or lifted up; the torque output mechanism on the root cutting knife holder is used to drive the cutting knife to rotate, so that the cutting knife shovels into the ground from one side of the forest seedling and passes through the ground from the other side of the forest seedling, completing a root cutting operation of the forest seedling.

[0006] Furthermore, the root cutting tool holder includes two sets of sliding rod mechanisms, and the sliding rod mechanisms include guide sleeves, sliding rods and springs; the guide sleeves are connected to the frame, and the sliding rods are axially free and circumferentially fixedly assembled in the guide hole of the guide sleeves, the springs are sleeved on the sliding rods, and the springs are supported between the guide sleeves and the end caps on the top of the sliding rods. A handlebar is hinged on the frame, and when the handlebars are pressed down, they touch the end caps and push the sliding rods downward. A rotating shaft is installed at the bottom end of the sliding rods, and the cutting knife is connected to the rotating shafts on the two sets of sliding rod mechanisms, and a reduction motor is installed on the sliding rod of one set of sliding rod mechanisms and is connected to the rotating shaft, and the reduction motor serves as a torque output mechanism; a battery is installed on the frame; the battery is used to power the reduction motor.

[0007] Furthermore, the spacing between the two sets of sliding rod mechanisms of the root cutting knife rack can be adjusted, and the forest seedling root cutting machine is equipped with cutting knives of different widths.

[0008] Furthermore, a plurality of root cutting tool racks are arranged on the frame, and the plurality of root cutting tool racks are arranged along a straight line perpendicular to the moving direction of the frame.

[0009] Furthermore, the frame is divided into several independent unit frames, and the several unit frames are arranged in a row. The outer sides of the first and second unit frames in the row are installed with supporting legs, and the adjacent unit frames are connected by bidirectional screw rods and nuts; the positive thread segment and the negative thread segment of the bidirectional screw rod are respectively threadedly connected with nuts; the nuts on the positive thread segment and the negative thread segment are respectively fixedly connected with two adjacent unit frames; the root cutting tool holders are installed on the unit frames one by one.

[0010] Furthermore, the two sets of sliding rod mechanisms of the root cutting tool holder, one set is fixed on the unit frame, and the other set is installed on the slider. The slider is slidably assembled in the sliding groove of the unit frame. The unit frame is threadedly connected with a threaded rod. One end of the threaded rod is connected to the slider through a rotating joint, and the other end is provided with a knob.

[0011] Furthermore, a reed switch is installed at the bottom of the slide bar, and the reed switch is connected to the circuit between the battery and the reduction motor. The reed switch includes a shell, a fixed contact, a reed contact and a pedal; the shell is installed at the bottom of the slide bar, the opening of the shell is downward, the pedal is movably buckled in the opening of the shell, the fixed contact and the reed contact are installed in the shell, the reed contact is connected to the pedal, and the fixed contact and the reed contact are respectively connected to the two ends of the circuit, when the reed switch is suspended, the reed contact is disconnected from the fixed contact, and when the pedal of the reed switch touches the ground, the reed contact is connected to the fixed contact.

[0012] Furthermore, a key is arranged in the guide hole of the guide sleeve, a key slot is opened on the slide bar, and the key on the guide sleeve cooperates with the key slot on the slide bar to limit the rotation of the slide bar.

[0013] Furthermore, anti-skid spikes are distributed on the tire surface of the wheel.

[0014] Furthermore, the blade curve of the cutting knife is a semicircle, and both ends of the semicircle are connected to the rotating shaft.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The present invention provides a tree seedling root pruning machine, which can complete the root pruning operation of multiple rows of tree seedlings at one time, and the work efficiency is doubled. When operating the tree seedling root pruning machine, it is only necessary to control a handlebar to complete the movement of the frame, the lifting and lowering of the root pruning knife holder, and the start and stop of the torque output mechanism of the cutting knife. It is easy to use and has low labor intensity during operation. The entire tree seedling root pruning machine does not have a complicated structure and is easy to make. The frame is welded from square tubes and has high strength. The spacing between the multiple root pruning knife holders on the frame can be adjusted, and can be freely adjusted according to the planting spacing of different varieties of tree seedlings; the spacing between the two sets of sliding rod mechanisms of the root pruning knife holder can be adjusted, and the tree seedling root pruning machine is equipped with cutting knives of different widths, and different cutting knives can be selected according to the diameters of tree seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A three-dimensional image of a forest seedling root cutter;

[0018] Figure 2 This is a schematic diagram of the cutting knife completing a root cutting action;

[0019] Figure 3 This is a top view of a forest seedling root cutter;

[0020] Figure 4 It is a schematic diagram of adjusting the spacing between two sets of sliding rod mechanisms;

[0021] Figure 5 It is a front view of the forest seedling root cutter;

[0022] Figure 6 A cross-sectional view of a reed switch.

[0023] In the figure: 1-frame; 1.1-leg; 1.2-wheel; 1.3-unit frame; 1.4-slide; 2-root cutting knife holder; 2.1-rotating shaft; 2.2-guide sleeve; 2.3-slide rod; 2.4-spring; 2.5-reduction motor; 2.6-end cap; 3-cutter; 4-handlebar; 5-anti-slip nail; 6-bidirectional screw rod; 7-nut; 8-reed switch; 8.1-housing; 8.2-fixed contact; 8.3-reed contact; 8.4-pedal; 9-battery; 10-slider; 11-threaded rod. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings. The contents shown in the drawings are only used to understand the technical contents of the invention, and do not represent the actual proportions and true shapes of the products, wherein the same reference numerals represent parts with the same structure or the same function but similar structure.

[0025] In this article, "parallel", "perpendicular", etc. are not strictly limited in mathematical and / or geometric senses, and may also include errors that can be understood by those skilled in the art and are allowed when manufacturing or using the product. In addition, "perpendicular" includes not only the perpendicularity of two objects directly connected in space, but also the perpendicularity of two objects not connected in space.

[0026] like Figure 1 , Figure 2As shown: a forest seedling root pruning machine includes a frame 1 and a root pruning knife frame 2. The frame 1 is a square tube welded frame, and the legs 1.1 of the frame 1 are equipped with wheels 1.2; the root pruning knife frame 2 is installed on the frame 1, and a cutting knife 3 is installed on the rotating shaft 2.1 at the bottom of the root pruning knife frame 2; the root pruning knife frame 2 can drive the cutting knife 3 to move up and down, so that the cutting knife 3 is close to the ground or lifted up; the torque output mechanism on the root pruning knife frame 2 is used to drive the cutting knife 3 to rotate, so that the cutting knife 3 is shoveled into the ground on one side of the forest seedling and passed through the ground on the other side of the forest seedling to complete a forest seedling root pruning operation; the cutting knife 3 cuts a circle from the bottom of the forest seedling, completely cuts off the root system of the forest seedling, completes the separation of the forest seedling from the land, and makes the roots of the forest seedling wrapped with soil, so that the forest seedling can be directly lifted up when transplanting. After the cutting knife 3 prunes the roots of a forest seedling, the root pruning knife frame 2 lifts the cutting knife 3, and the cutting knife 3 rotates to reset.

[0027] Specifically, anti-skid spikes 5 are distributed on the tire surface of the wheel 1.2 to prevent the wheel 1.2 from slipping when the cutter 3 shovels into the soil.

[0028] The blade curve of the cutting knife 3 is a semicircle, and the two ends of the semicircle are connected to the rotating shaft 2.1. The semicircular arc-shaped cutting knife 3 is more conducive to shoveling into the soil and can reduce the adhesion of soil on the blade of the cutting knife 3; and the soil block left at the root of the forest seedling after the cutting knife 3 is a hemispherical shape, which evenly wraps the root of the forest seedling, and the soil block at the root of the forest seedling is not easy to collapse.

[0029] The root cutting knife frame 2 includes two sets of slide bar mechanisms, which include a guide sleeve 2.2, a slide bar 2.3 and a spring 2.4; the guide sleeve 2.2 is connected to the frame 1, and the slide bar 2.3 is axially free and circumferentially fixedly assembled in the guide hole of the guide sleeve 2.2. A key is provided in the guide hole of the guide sleeve 2.2, and a key slot is provided on the slide bar 2.3. The key on the guide sleeve 2.2 cooperates with the key slot on the slide bar 2.3 to limit the rotation of the slide bar 2.3; the spring 2.4 is sleeved on the slide bar 2.3, and the spring 2.4 is supported between the guide sleeve 2.2 and the end cap 2.6 at the top of the slide bar 2.3. The spring 2.4 keeps pushing the slide bar 2.3 upward. When there is no external thrust, the slide bar 2.3 remains in the lifted state. A handlebar 4 is hinged on the frame 1. The handlebar 4 is both a handle for controlling the movement of the frame 1 and a handle for controlling the root cutting knife frame 2. When the operator operates the forest seedling root cutting machine for operation, he only needs to control the handlebar 4, which is simple to operate and has low labor intensity. A pressure plate is installed on the handlebar 4. When the handlebar 4 is pressed down, the pressure plate touches the end cap 2.6 to push the slide bar 2.3 downward. A rotating shaft 2.1 is installed at the bottom end of the slide bar 2.3. The cutter 3 is connected to the rotating shaft 2.1 on the two sets of slide bar mechanisms. A reduction motor 2.5 is installed on the slide bar 2.3 of one set of slide bar mechanisms and is connected to the rotating shaft 2.1. The reduction motor 2.5 serves as a torque output mechanism. The reduction motor 2.5 has a low speed and a large torque, and drives the cutter 3 to cut the soil and the roots of forest seedlings; a battery 9 is installed on the frame 1; the battery 9 is used to power the reduction motor 2.5; the battery 9 and the reduction motor 2.5 are connected by a cable.

[0030] The handlebar 4 is used to press the slide bar 2.3 downward, and the slide bar 2.3 contacts the ground, and the reduction motor 2.5 is started, and the cutter 3 is shoveled into the soil body, that is, the start and stop operation of the reduction motor 2.5 can also be controlled by the handlebar 4.

[0031] like Figure 5 , Figure 6As shown: a reed switch 8 is installed at the bottom of the slide bar 2.3, and the reed switch 8 is connected to the circuit between the battery 9 and the reduction motor 2.5. The reed switch 8 includes a housing 8.1, a fixed contact 8.2, a reed contact 8.3 and a pedal 8.4; the housing 8.1 is installed at the bottom of the slide bar 2.3, the opening of the housing 8.1 is downward, the pedal 8.4 is movably buckled in the opening of the housing 8.1, the fixed contact 8.2 and the reed contact 8.3 are installed in the housing 8.1, the reed contact 8.3 is connected to the pedal 8.4, the fixed contact 8.2 and the reed contact 8.3 are respectively connected to the two ends of the circuit, when the reed switch 8 is suspended, the reed contact 8.3 is disconnected from the fixed contact 8.2, and when the pedal 8.4 of the reed switch 8 touches the ground, the reed contact 8.3 is connected to the fixed contact 8.2. The slide bar 2.3 is pressed down by the handlebar 4. When the slide bar 2.3 moves downward, the reed switch 8 contacts the ground, and the pedal 8.4 pushes the reed contact 8.3 to contact the fixed contact 8.2. The circuit between the battery 9 and the reduction motor 2.5 is connected, the reduction motor 2.5 is started, and the cutter 3 performs a cutting action. After the cutter 3 completes the cutting, the handlebar 4 is lifted up, and the spring 2.4 pushes the slide bar 2.3 upward. After the pedal 8.4 leaves the ground, the reed contact 8.3 and the fixed contact 8.2 are disconnected, and the reduction motor 2.5 is powered off and stops rotating. The frame 1 is pushed forward, and the handlebar 4 is pressed down again after leaving the rooted tree seedlings. After the reed switch 8 is triggered, the reduction motor 2.5 is powered on, and the cutter 3 continues to rotate until it is reset, and then the handlebar 4 is lifted up to wait for the next rooting operation.

[0032] A plurality of root cutting tool racks 2 are arranged on the frame 1, and the plurality of root cutting tool racks 2 are arranged along a straight line perpendicular to the moving direction of the frame 1, and can complete the root cutting operation of multiple rows of forest seedlings at one time, thereby doubling the work efficiency.

[0033] like Figure 3 As shown: the spacing between multiple root cutting tool racks 2 can be adjusted, and can be freely adjusted according to the planting spacing of different varieties of tree seedlings. The frame 1 is divided into several independent unit racks 1.3, and several unit racks 1.3 are arranged in a row. The outer sides of the first and second unit racks 1.3 in the row are installed with supporting legs 1.1, and the adjacent unit racks 1.3 are connected by bidirectional screw rods 6 and nuts 7; the positive thread segment and the negative thread segment of the bidirectional screw rod 6 are respectively threadedly connected with nuts 7; the nuts 7 on the positive thread segment and the negative thread segment are respectively fixedly connected with two adjacent unit racks 1.3; the root cutting tool racks 2 are installed on the unit racks 1.3 in a one-to-one correspondence; when the bidirectional screw rod 6 is rotated, the nuts 7 on the positive thread segment and the negative thread segment of the bidirectional screw rod 6 move synchronously in opposite directions, and the nuts 7 push the two adjacent unit racks 1.3, and the spacing between the two adjacent unit racks 1.3 is widened or narrowed, and the spacing between the corresponding root cutting tool racks 2 is widened or narrowed.

[0034] The spacing between the two sets of slide rod mechanisms of the root cutting knife frame 2 can be adjusted, and the forest seedling root cutting machine is equipped with cutting knives 3 of different widths. With such an arrangement, different cutting knives 3 can be selected according to forest seedlings of different diameters.

[0035] like Figure 4 As shown: the two sets of sliding rod mechanisms of the root cutting tool holder 2, one set is fixed on the unit frame 1.3, and the other set is installed on the slider 10. The slider 10 is slidably assembled in the slide groove 1.4 of the unit frame 1.3. A threaded rod 11 is threadedly connected to the unit frame 1.3. One end of the threaded rod 11 is connected to the slider 10 through a rotating joint, and a knob is provided at the other end. When the threaded rod 11 is rotated by the knob, the threaded rod 11 pushes the slider 10 to move, thereby changing the spacing between the two sets of sliding rod mechanisms.

[0036] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0037] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tree seedling root cutter, characterized in that: It comprises a vehicle frame (1) and a root cutting knife frame (2), wherein a wheel (1.2) is mounted on a leg (1.1) of the vehicle frame (1); A root cutting knife frame (2) is mounted on a vehicle frame (1), and a cutting knife (3) is mounted on a rotating shaft (2.1) at the bottom of the root cutting knife frame (2); the root cutting knife frame (2) can drive the cutting knife (3) to move up and down, so that the cutting knife (3) is close to the ground or lifted; a torque output mechanism on the root cutting knife frame (2) is used to drive the cutting knife (3) to rotate, so that the cutting knife (3) is shoveled into the ground from one side of the forest seedling and passes through the ground from the other side of the forest seedling, thereby completing a root cutting operation of the forest seedling.

2. A tree seedling root cutter according to claim 1, characterized in that: The root cutting knife holder (2) comprises two sets of slide bar mechanisms, which comprise a guide sleeve (2.2), a slide bar (2.3) and a spring (2.4); the guide sleeve (2.2) is connected to the frame (1); the slide bar (2.3) is axially free and circumferentially fixedly assembled in the guide hole of the guide sleeve (2.2); the spring (2.4) is sleeved on the slide bar (2.3); the spring (2.4) is supported between the guide sleeve (2.2) and an end cap (2.6) at the top of the slide bar (2.3); and a handlebar (4) is hinged on the frame (1). When the handlebar (4) is pressed down, it touches the end cap (2.6) to push the slide bar (2.3) downward, a rotating shaft (2.1) is installed at the bottom end of the slide bar (2.3), the cutter (3) is connected to the rotating shafts (2.1) on the two sets of slide bar mechanisms, a reduction motor (2.5) is installed on the slide bar (2.3) of one set of slide bar mechanisms and is connected to the rotating shaft (2.1), and the reduction motor (2.5) serves as a torque output mechanism; a storage battery (9) is installed on the frame (1); the storage battery (9) is used to supply power to the reduction motor (2.5).

3. A tree seedling root cutter according to claim 2, characterized in that: The distance between the two sets of sliding rod mechanisms of the root cutting knife frame (2) can be adjusted, and the forest seedling root cutting machine is equipped with cutting knives (3) with different widths.

4. A tree seedling root cutter according to claim 3, characterized in that: A plurality of root cutting tool racks (2) are arranged on the frame (1), and the plurality of root cutting tool racks (2) are arranged along a straight line perpendicular to the moving direction of the frame (1).

5. A tree seedling root cutter according to claim 4, characterized in that: The frame (1) is divided into a plurality of independent unit frames (1.3), and the plurality of unit frames (1.3) are arranged in a row. The outer sides of the first unit frames (1.3) in the row are installed with supporting legs (1.1), and the adjacent unit frames (1.3) are connected by bidirectional screw rods (6) and nuts (7); the positive thread segment and the negative thread segment of the bidirectional screw rod (6) are respectively threadedly connected with nuts (7); the nuts (7) on the positive thread segment and the negative thread segment are respectively fixedly connected with two adjacent unit frames (1.3); and the root cutting knife holders (2) are installed on the unit frames (1.3) one by one.

6. A tree seedling root cutter according to claim 5, characterized in that: The two groups of sliding rod mechanisms of the root cutting knife holder (2) are one group fixed on the unit frame (1.3) and the other group installed on the slider (10). The slider (10) is slidably assembled in the sliding groove (1.4) of the unit frame (1.3). A threaded rod (11) is threadedly connected to the unit frame (1.3). One end of the threaded rod (11) is connected to the slider (10) through a rotating joint, and the other end is provided with a knob.

7. A tree seedling root cutter according to claim 2, characterized in that: A reed switch (8) is installed at the bottom of the slide bar (2.3). The reed switch (8) is connected to the circuit between the battery (9) and the reduction motor (2.5). The reed switch (8) includes a housing (8.1), a fixed contact (8.2), a reed contact (8.3) and a pedal (8.4). The housing (8.1) is installed at the bottom of the slide bar (2.3), the opening of the housing (8.1) is downward, and the pedal (8.4) is movably buckled in the opening of the housing (8.1). The fixed contact (8.2) and the reed contact (8.3) are installed in the housing (8.1), the reed contact (8.3) is connected to the pedal (8.4), the fixed contact (8.2) and the reed contact (8.3) are respectively connected to two ends of the circuit, when the reed switch (8) is suspended in the air, the reed contact (8.3) is disconnected from the fixed contact (8.2), and when the pedal (8.4) of the reed switch (8) touches the ground, the reed contact (8.3) is connected to the fixed contact (8.2).

8. The tree seedling root cutter according to claim 2, characterized in that: A key is arranged in the guide hole of the guide sleeve (2.2), a key slot is provided on the slide bar (2.3), and the key on the guide sleeve (2.2) cooperates with the key slot on the slide bar (2.3) to limit the rotation of the slide bar (2.3).

9. The tree seedling root cutter according to claim 1, characterized in that: Anti-skid studs (5) are distributed on the tire surface of the wheel (1.2).

10. The tree seedling root cutter according to claim 1, characterized in that: The blade curve of the cutting knife (3) is a semicircle, and both ends of the semicircle are connected to the rotating shaft (2.1).

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