Larix hupehensis branch and leaf pruning device for forest tending

Abstract

The utility model discloses a larch branch and leaf pruning device for forest tending, which comprises a lifting frame and a lifting groove, the lifting groove is arranged in the middle of the lifting frame, a support rod is movably sleeved in the lifting groove, the front end of the support rod is fixedly connected with a steering motor, an output shaft of the steering motor is sleeved with a speed change disc, and the speed change disc is fixedly connected with the lifting frame. A rotating arm is coaxially and fixedly connected to the outer portion of the speed change disc in a sleeving mode, a tool apron is fixedly connected to the top end of the rotating arm, and a chain saw blade is assembled on the tool apron. According to the larch branch and leaf pruning device for forest tending, by arranging a steering motor, a speed change disc, a rotating arm, a tool apron and a chain saw blade, the device can rotate and fix the position within a certain overturning range at the top end of the device, branches and leaves growing at different angles can be pruned conveniently, the chain saw blade does not need to be lowered for manual adjustment, and operation is convenient. The device is more suitable for high-altitude pruning work of larch in North China, and solves the problem that the cutter head cannot be turned over.

Description

Technical Field

[0001] The utility model relates to the technical field of forest tending, in particular to a device for trimming branches and leaves of Larix principis-rupprechtii used for forest tending. Background Art

[0002] Larix principis-rupprechtii is a fast-growing economic tree species widely planted in northern China. It is widely used in industries such as papermaking, construction, and landscape because of its fast growth, light wood, and corrosion resistance. In the process of forest tending, regular pruning is essential to maintain forest health, improve wood quality, and enhance growth vitality. Timely pruning can effectively control the growth direction and shape of trees, reduce the occurrence of diseases and pests, and promote the rational distribution of nutrients, thereby optimizing the ecological environment and economic value of the entire forest.

[0003] Existing branch and leaf pruning devices have some limitations when used for high-altitude operations on tall tree species such as Larix principis-rupprechtii. Traditional pruning devices are mostly designed with a fixed-direction cutter head, which can be used for ground operations or pruning of low vegetation, but for tall Larix principis-rupprechtii, its height can reach tens of meters, with lush branches and leaves extending in various directions. The current device cannot adjust the direction of the cutter head at high altitudes, so workers often need to adjust the position of the machine or manually climb to operate multiple times during the pruning process, which not only greatly reduces work efficiency, but also increases the danger of the operation. In addition, it is difficult for the unadjustable cutter head to accurately prune specific branches, which can easily lead to uneven pruning and affect the healthy growth and appearance of the trees.

[0004] Therefore, there is a need for a Larix principis-rupprechtii branch and leaf pruning device for forest tending to solve the above-mentioned technical defects. Utility Model Content

[0005] The purpose of the utility model is to provide a device for pruning branches and leaves of Larix principis-rupprechtii for forest cultivation, so as to solve the problem that the device proposed in the above-mentioned background technology cannot adjust the direction of the blade in the air and cannot meet the needs of high-altitude pruning of Larix principis-rupprechtii.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for pruning branches and leaves of Larix gmelinii used for forest tending, comprising a lifting frame and a lifting slot, a lifting slot being provided in the middle position of the lifting frame, a support rod being movably sleeved in the lifting slot, a steering motor being fixedly connected to the front end of the support rod, a speed change plate being sleeved on the output shaft of the steering motor, a rotating arm being coaxially fixedly sleeved on the outside of the speed change plate, a knife seat being fixedly connected to the top of the rotating arm, a chain saw blade being mounted on the knife seat, the chain saw blade comprising a group of knife plates mounted in the knife seat, a chain belt being sleeved on the outer wall of the knife plate, a first sprocket being meshedly connected to the bottom of the chain belt, a second sprocket being meshedly connected to the top of the chain belt, and a plurality of groups of knife teeth being welded to the outside of the chain belt.

[0007] Preferably, a first gear is installed on the right side of the knife seat, and a second gear is installed on the left side of the knife seat. A driving motor is provided at one end of the first gear, and the output shaft of the driving motor is fixedly connected to the first gear. The first gear and the second gear are meshed and connected, and the second gear is coaxially sleeved with the first sprocket.

[0008] Preferably, a protective baffle is welded on the left side of the bottom end of the knife seat, and the protective baffle is a group of semicircular arc plates, and its curvature matches the outer arc of the speed change plate.

[0009] Preferably, a group of piston rods are fixedly connected to both sides of the lifting frame, and a group of oil cylinders are respectively installed at the bottom ends of the piston rods.

[0010] Preferably, a group of connecting frames are welded on both sides of the bottom end of the support rod, and locking sleeves are welded on the ends of the connecting frames. Adjusting rods are respectively sleeved in the locking sleeves, and adjusting grooves are opened in the adjusting rods. Locking bolts are fixedly connected between the adjusting grooves and the locking sleeves.

[0011] Preferably, the bottom ends of the adjusting rods are respectively welded with fixing hoops, and the fixing hoops are respectively fixedly sleeved on the bottom ends of the oil cylinders, and the adjusting rods and the fixing hoops form an "L" shape.

[0012] Preferably, a limiting block is fixed on the top end of the adjusting rod, and the adjusting rod and the locking sleeve are detachable.

[0013] Preferably, the support rod is a steel rod, and the length of the support rod is arranged according to needs.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the larch pruning device for forest tending not only realizes the automatic flipping of the blade angle, without the need to lower the chain saw blade for manual adjustment, thus realizing a more efficient automatic pruning function, but also realizes an adjustable design, the chain saw blade has a longer extendable space, and the extendable range for pruning is larger;

[0015] (1) The device is divided into a support part and a pruning part by providing a steering motor, a speed disc, a rotating arm, a blade holder and a chain saw blade. When the chain saw blade is extended to a higher height, the steering motor is rotated a certain number of times by remote control. After the speed disc reduces the speed, the rotating arm is driven to flip through the speed disc, thereby driving the entire blade holder and the chain saw blade to flip the angle, so that the chain saw blade can be rotated and fixed in a certain flipping range at the top of the device, which is convenient for pruning branches and leaves growing at different angles. There is no need to lower the chain saw blade for manual adjustment, which is more suitable for high-altitude pruning of North China larch;

[0016] (2) The entire chain saw uses highly sharp teeth as a pruning tool by providing a blade tooth, a driving motor, a first gear, a second gear, a first sprocket, a second sprocket, and a chain belt. When the chain saw is started, the driving motor is remotely controlled to drive the first gear to rotate, and the second gear meshing with the first gear rotates. When the first sprocket coaxially fixed with the second gear rotates, the second sprocket rotates in coordination with the meshing operation of the chain belt, thereby forming a high-speed operation of the chain saw, realizing automatic pruning of branches and leaves, and having a more efficient automatic pruning function for Larix principis-rupprechtii of different thicknesses and growth states;

[0017] (3) By providing an oil cylinder, a piston rod, a locking bolt, a locking sleeve, and an adjusting groove, the support part of the device has an extendable function. The piston rod is pushed out by the oil cylinder to achieve automatic extension at a fixed distance. By loosening the locking bolt, the position of the locking sleeve at the adjusting groove is adjusted to adjust the relative position of the chain saw blade and the basic lifting frame. By combining manual and automatic control, the chain saw blade has a longer extendable space and a larger range of extension for trimming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the chain saw blade of the utility model;

[0020] Figure 3 This is a schematic diagram of the side view structure of the steering motor of the utility model;

[0021] Figure 4 It is a schematic diagram of the front view structure of the oil cylinder of the utility model.

[0022] In the figure: 1. chain saw blade; 2. blade holder; 3. rotating arm; 4. speed change plate; 5. steering motor; 6. protective baffle; 7. second gear; 8. first gear; 9. driving motor; 10. support rod; 11. lifting frame; 12. piston rod; 13. oil cylinder; 14. fixing hoop; 15. adjusting groove; 16. connecting frame; 17. adjusting rod; 18. locking bolt; 19. locking sleeve; 20. lifting groove; 21. blade teeth; 22. chain belt; 23. first sprocket; 24. blade plate; 25. second sprocket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-4 , a device for pruning branches and leaves of Larix gmelinii used for forest tending, comprising a lifting frame 11 and a lifting slot 20, wherein the lifting slot 20 is provided in the middle of the lifting frame 11, a support rod 10 is movably sleeved in the lifting slot 20, a steering motor 5 is fixedly connected to the front end of the support rod 10, a speed change plate 4 is sleeved on the output shaft of the steering motor 5, a rotating arm 3 is coaxially fixedly sleeved on the outside of the speed change plate 4, a knife seat 2 is fixedly connected to the top of the rotating arm 3, a chain saw blade 1 is mounted on the knife seat 2, the chain saw blade 1 comprises a group of knife plates 24 mounted in the knife seat 2, a chain belt 22 is sleeved on the outer wall of the knife plate 24, a first sprocket 23 is meshedly connected to the lower part of the chain belt 22, a second sprocket 25 is meshedly connected to the upper part of the chain belt 22, a plurality of groups of knife teeth 21 are welded to the outer part of the chain belt 22, a protective baffle 6 is welded to the left side of the bottom end of the knife seat 2, the protective baffle 6 is a group of semicircular arc plates, and its curvature matches the outer arc of the speed change plate 4;

[0025] Specifically, Figure 1 and Figure 3 As shown, the device is divided into a supporting part and a pruning part. When the chain saw blade 1 is extended to a higher height, the remote control steering motor 5 rotates a certain number of circles. After the speed is reduced by the speed change plate 4, the rotating arm 3 is driven to flip through the speed change plate 4, thereby driving the entire blade holder 2 and the chain saw blade 1 to flip the angle, so that the chain saw blade 1 can be rotated and fixed in a certain flipping range at the top of the device, which is convenient for pruning branches and leaves growing at different angles, without lowering the chain saw blade 1 for manual adjustment.

[0026] Embodiment 2: A first gear 8 is installed on the right side of the knife seat 2, a second gear 7 is installed on the left side of the knife seat 2, a driving motor 9 is provided at one end of the first gear 8, an output shaft of the driving motor 9 is fixedly connected to the first gear 8, the first gear 8 and the second gear 7 are meshed and connected, and the second gear 7 is coaxially sleeved with the first sprocket 23;

[0027] Specifically, Figure 1 and Figure 2 As shown, the entire chain saw blade 1 uses a highly sharp blade tooth 21 as a pruning tool. When started, the remote control driving motor 9 drives the first gear 8 to rotate, and rotates the second gear 7 meshing therewith. When the first sprocket wheel 23 coaxially fixed with the second gear 7 rotates, the second sprocket wheel 25 rotates in coordination with the meshing operation of the chain belt 22, thereby forming a high-speed operation of the chain saw blade 1 and realizing automatic pruning of branches and leaves.

[0028] Embodiment 3: A group of piston rods 12 are fixedly connected on both sides of the lifting frame 11, and a group of oil cylinders 13 are respectively installed at the bottom end of the piston rods 12. A group of connecting frames 16 are welded on both sides of the bottom end of the support rod 10, and locking sleeves 19 are welded at the ends of the connecting frames 16. Adjusting rods 17 are respectively sleeved in the locking sleeves 19. Adjusting grooves 15 are opened in the adjusting rods 17. Locking bolts 18 are respectively fixedly connected between the adjusting grooves 15 and the locking sleeves 19. Fixed hoops 14 are respectively welded at the bottom ends of the adjusting rods 17. The fixing hoops 14 are respectively fixedly sleeved on the bottom ends of the oil cylinders 13. The adjusting rods 17 and the fixing hoops 14 form an "L" shape. The top ends of the adjusting rods 17 are fixed with limited blocks. The adjusting rods 17 and the locking sleeves 19 are detachable. The support rods 10 are steel rods, and the length of the support rods 10 can be arranged according to needs.

[0029] Specifically, Figure 1 and Figure 4 As shown, the support part of the device has an extendable function. The piston rod 12 is pushed out by the cylinder 13 to achieve automatic extension at a fixed distance. By loosening the locking bolt 18 and adjusting the position of the locking sleeve 19 in the adjustment slot 15, the basic relative position of the chain saw blade 1 and the lifting frame 11 is adjusted.

[0030] Working principle: The supporting part of the device has an extendable function. The piston rod 12 is pushed out by the oil cylinder 13 to realize automatic extension at a fixed distance. By loosening the locking bolt 18 and adjusting the position of the lock sleeve 19 sleeved on the adjusting slot 15, the basic relative position of the chain saw blade 1 and the lifting frame 11 is adjusted. By combining manual and automatic, the chain saw blade 1 has a longer extendable space. After adjustment, start pruning, remote control drive motor 9 drives the first gear 8 to rotate, and rotates through the second gear 7 meshing therewith. When the first sprocket 23 coaxially fixed with the second gear 7 rotates, the second sprocket 25 rotates in coordination through the meshing operation of the chain belt 22, thereby forming a high-speed operation of the chain saw blade 1, and realizing automatic trimming of branches and leaves. The remote control steering motor 5 rotates a certain number of circles, and after the speed is reduced by the speed change plate 4, the speed change plate 4 drives the rotating arm 3 to flip, thereby driving the entire blade holder 2 and the chain saw blade 1 to flip the angle, so that the chain saw blade 1 can rotate and fix its position within a certain flipping range at the top of the device, which is convenient for trimming branches and leaves growing at different angles.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A Larix principis-rupprechtii branch and leaf pruning device for forest tending, comprising a lifting frame (11) and a lifting slot (20), characterized in that: A lifting slot (20) is provided in the middle of the lifting frame (11), a support rod (10) is movably sleeved in the lifting slot (20), a steering motor (5) is fixedly connected to the front end of the support rod (10), a speed change plate (4) is sleeved on the output shaft of the steering motor (5), a rotating arm (3) is coaxially and fixedly sleeved on the outside of the speed change plate (4), a knife seat (2) is fixedly connected to the top of the rotating arm (3), a chain saw blade (1) is mounted on the knife seat (2), the chain saw blade (1) comprises a set of knife plates (24) mounted in the knife seat (2), a chain belt (22) is sleeved on the outer wall of the knife plate (24), a first sprocket wheel (23) is meshedly connected to the bottom of the chain belt (22), a second sprocket wheel (25) is meshedly connected to the top of the chain belt (22), and a plurality of sets of knife teeth (21) are welded to the outside of the chain belt (22).

2. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 1, characterized in that: A first gear (8) is installed on the right side of the knife seat (2), and a second gear (7) is installed on the left side of the knife seat (2). A driving motor (9) is provided at one end of the first gear (8). The output shaft of the driving motor (9) is fixedly connected to the first gear (8). The first gear (8) and the second gear (7) are meshed and connected. The second gear (7) is coaxially sleeved with the first sprocket (23).

3. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 1, characterized in that: A protective baffle (6) is welded on the left side of the bottom end of the knife seat (2). The protective baffle (6) is a group of semicircular arc plates, and its curvature matches the outer arc of the speed change disc (4).

4. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 1, characterized in that: A group of piston rods (12) are fixedly connected to both sides of the lifting frame (11), and a group of oil cylinders (13) are installed at the bottom ends of the piston rods (12).

5. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 1, characterized in that: A group of connecting frames (16) are welded on both sides of the bottom end of the support rod (10), and locking sleeves (19) are welded on the ends of the connecting frames (16). Adjusting rods (17) are respectively sleeved in the locking sleeves (19), and an adjusting groove (15) is provided in the adjusting rod (17). Locking bolts (18) are respectively fixedly connected between the adjusting groove (15) and the locking sleeves (19).

6. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 5, characterized in that: The bottom ends of the adjusting rods (17) are respectively welded with fixing hoops (14), and the fixing hoops (14) are respectively fixedly sleeved on the bottom ends of the oil cylinders (13), and the adjusting rods (17) and the fixing hoops (14) form an "L" shape.

7. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 5, characterized in that: A limiting block is fixed on the top of the adjusting rod (17), and the adjusting rod (17) and the locking sleeve (19) are detachable.

8. The device for pruning branches and leaves of Larix principis-rupprechtii for forest tending according to claim 1, characterized in that: The support rod (10) is a steel rod, and the length of the support rod (10) is arranged according to needs.

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