Forest tree branch removing device

The tree debranching device, which combines a conveying mechanism and a clamping mechanism, solves the problems of high operational difficulty and low efficiency in forest debranching operations, achieving stable tree conveying and efficient cutting, and adapting to the processing needs of trees of different diameters.

CN121667067APending Publication Date: 2026-03-17NANJING FORESTRY UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511982141.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-25
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing tree pruning operations are difficult to perform in forest environments, making it hard to improve efficiency.

Method used

A tree debranching device that employs a conveying mechanism and a clamping mechanism in concert includes a roller assembly and a clamping assembly. The roller assembly is driven to rotate by a rotating assembly to convey the trees, and the cutting part of the clamping assembly cuts the tree branches.

Benefits of technology

It enables stable transport and precise clamping of trees along a preset path, improves the automation and efficiency of debranching operations, adapts to the processing needs of trees of different diameters, and enhances the quality of debranching.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121667067A_ABST
    Figure CN121667067A_ABST
Patent Text Reader

Abstract

The invention discloses a forest tree branch removing device, and belongs to the technical field of forestry felling, the forest tree branch removing device comprises a conveying mechanism and a rack, the conveying mechanism comprises a second driving assembly, a rotating assembly and a roller assembly, the roller assembly is arranged on the rack, the roller assembly is located on the peripheral side of a preset path so as to be in contact with a forest tree, the rotating assembly drives the roller assembly to rotate, and the rotating assembly drives the conveying mechanism to rotate. The second driving assembly is connected with the roller assembly and used for driving the roller assembly to be close to or away from the preset path; the clamping and holding mechanism comprises a first driving assembly and a clamping assembly, the first driving assembly is connected with the clamping assembly to drive the clamping assembly to be opened and closed, the clamping assembly is arranged on the rack, the clamping assembly is located on the peripheral side of the preset path and used for clamping the forest tree, and a cutting part is arranged on the clamping assembly and used for making contact with the forest tree. The branch removing efficiency can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of forestry harvesting technology, and more specifically relates to a tree debranching device. Background Technology

[0002] Existing tree pruning operations are usually carried out directly in the forest. However, the forest environment is complex and changeable, and the operating conditions are easily limited, which makes the field pruning operation difficult and makes it hard to improve pruning efficiency.

[0003] Therefore, how to provide a debranching device that can improve debranching efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a tree debranching device that can improve debranching efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tree debranching device, comprising:

[0007] The conveying mechanism and frame include a second drive assembly, a rotating assembly, and a roller assembly. The roller assembly is mounted on the frame and located around the periphery of a preset path for contacting the trees. The rotating assembly drives the roller assembly to rotate, thereby conveying the trees along the preset path. The second drive assembly is connected to the roller assembly and is used to drive the roller assembly closer to or away from the preset path.

[0008] A clamping mechanism includes a first driving component and a clamping component. The first driving component is connected to the clamping component to drive the clamping component to open and close. The clamping component is disposed on the frame and is located on the periphery of a preset path for clamping trees. The clamping component is provided with a cutting part for contacting the trees.

[0009] Optionally, the clamping mechanism further includes a support member fixed to the frame, the clamping assembly rotatably disposed on the support member, and the first driving assembly connected to the clamping assembly and used to drive the clamping assembly to rotate.

[0010] Optionally, the clamping assembly includes two clamping claws, which are respectively disposed on both sides of a preset path. The first driving assembly is connected to the two clamping claws and is used to drive the two clamping claws to move closer to or away from the preset path.

[0011] Optionally, the clamping assembly is arc-shaped;

[0012] And / or, the clamping assembly has an anti-slip layer on the side closest to the tree.

[0013] Optionally, the roller assembly includes a support base and a conveying roller. The support base is rotatably mounted on the frame. The second drive assembly is connected to the support base and is used to drive the support base to rotate. The conveying roller is rotatably mounted on the support base. The rotating assembly is mounted on the support base and connected to the conveying roller.

[0014] Optionally, the conveying roller is provided with a clamping strip, which is a long strip structure and is arranged circumferentially along the outer side of the conveying roller.

[0015] Optionally, the clamping bar is detachably mounted on the conveying roller.

[0016] Optionally, the conveying roller is concave in an arc shape from both ends toward the middle.

[0017] Optionally, two roller assemblies are provided, and the two roller assemblies are respectively located on both sides of the preset path. The second drive assembly is used to drive the two roller assemblies to move closer to or away from the preset path.

[0018] Optionally, the tree debranching device further includes an auxiliary guide wheel, which is rotatably mounted on the frame and located around the periphery of a preset path, and the auxiliary guide wheel abuts against the trees.

[0019] The above technical solution includes at least the following technical effects:

[0020] Through the coordinated action of the conveying and clamping mechanisms, stable conveying and precise clamping of timber along a preset path are achieved. Once the timber enters the device, the second drive component adjusts the distance between the roller assembly and the preset path according to the timber's diameter, ensuring the roller assembly fits tightly against the timber surface. Subsequently, the rotating component drives the roller assembly to rotate, continuously conveying the timber forward. Simultaneously, the first drive component drives the clamping assembly to close, bringing the cutting part into contact with the timber. During timber conveying, the cutting part efficiently cuts the branches and trunk. This structural design not only improves the automation level of debranching operations but also adapts to the processing needs of timber of different diameters, effectively enhancing the efficiency and quality of timber debranching. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a tree debranching device according to an embodiment of the present invention;

[0023] Figure 2 : This is a schematic diagram of the clamping component structure of a tree debranching device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the clamping component of a tree debranching device according to another embodiment of the present invention.

[0025] Figure 4 : This is a schematic diagram of the conveying component structure of a tree debranching device according to an embodiment of the present invention;

[0026] Figure 5 This is an exploded view of the auxiliary guide wheel mechanism of a tree debranching device according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Frame; 2. Clamping mechanism; 21. Clamping assembly; 22. First drive assembly; 23. Supporting member; 24. Cutting part; 3. Conveying mechanism; 31. Second drive assembly; 32. Rotating assembly; 33. Roller assembly; 331. Clamping bar; 332. Support base; 333. Conveying roller; 4. Auxiliary guide wheel; 41. Guide wheel; 42. Guide shaft. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] The following detailed description, in conjunction with the accompanying drawings, of a tree pruning device provided by the present invention through specific embodiments and application scenarios, will be provided in detail.

[0032] See appendix Figure 1-5 The present invention provides a tree debranching device, comprising:

[0033] The conveying mechanism 3 is connected to the frame 1. The conveying mechanism 3 includes a second drive assembly 31, a rotating assembly 32, and a roller assembly 33. The roller assembly 33 is mounted on the frame 1 and is located on the periphery of the preset path for contact with the trees. The rotating assembly 32 drives the roller assembly 33 to rotate, thereby conveying the trees along the preset path. The second drive assembly 31 is connected to the roller assembly 33 and is used to drive the roller assembly 33 to move closer to or away from the preset path.

[0034] Optionally, the support legs and support trusses of the frame 1 are made of hollow steel to support and connect the various components of the device, ensuring overall strength and stability. The frame 1 is fixed with self-locking nuts, thereby improving the reliability of the connection between the various parts of the frame 1 and the overall stability.

[0035] Optionally, a support for supporting trees is provided at the front end of the preset path on the frame 1. The upper end of the support is equipped with an arc-shaped groove, in which the trees are placed to ensure that the trees can move horizontally along the preset path.

[0036] Optionally, the conveying mechanism 3 is located in the middle of the frame 1. The rotating component 32 is driven by a hydraulic motor, which drives the roller assembly 33 to rotate. The second drive component 31 uses a hydraulic cylinder, which adjusts the pressing force of the roller assembly 33 on the trees by extending and retracting the hydraulic cylinder. By automatically or actively adjusting the speed of the hydraulic motor, the feeding speed of the feed roller can be continuously adjusted.

[0037] Optionally, the speed of the hydraulic motor can be precisely controlled by the synergistic effect of the load-sensitive variable pump and the proportional multi-way valve. Then, the opening of the hydraulic valve can be flexibly changed by adjusting the control handle, thereby achieving continuous and precise adjustment of the feed speed of the feed roller within a large range.

[0038] The clamping mechanism 2 includes a first driving component 22 and a clamping component 21. The first driving component 22 is connected to the clamping component 21 to drive the clamping component 21 to open and close. The clamping component 21 is mounted on the frame 1 and is located around the periphery of a preset path to clamp trees. The clamping component 21 is provided with a cutting part 24 for contacting the trees.

[0039] Optionally, two clamping mechanisms 2 are provided, both located on a preset path and on the front and rear sides of the conveying mechanism 3, respectively. This further enhances the stability of the trees during transport and avoids swaying or positional shifts that may occur due to single-weight clamping. When the two clamping mechanisms 2 work together, clamping forces can be applied from different positions on the trees, creating a multi-point fixation effect. This is especially effective for trees that are long or whose center of gravity is difficult to control, as it can effectively disperse clamping stress and reduce the risk of damage to the tree surface. It also provides more reliable structural support for the smooth transport of the subsequent conveying mechanism 3. Furthermore, the rear clamping mechanism can further remove residual branches, ensuring effective branch removal. The two clamping mechanisms 2 can adaptively adjust according to parameters such as the diameter and length of the trees, avoiding problems such as unstable clamping or excessive compression due to differences in tree specifications.

[0040] Optionally, the first drive component 22 is a hydraulic cylinder. The extension and retraction of the hydraulic cylinder adjusts the clamping effect of the clamping component 21 on the trees, thereby achieving precise control over the clamping force of the clamping component 21 and the gap between the clamping component 21 and the tree trunk.

[0041] The clamping assembly 21 has a maximum opening size of 400mm to 500mm, designed to enhance its adaptability to large-diameter, curved, and eccentric tree trunks, and to provide sufficient installation and eccentricity allowance to ensure that curved or eccentric tree trunks can smoothly enter the clamping-conveying area. In the clamped state, the clamping assembly 21 applies a certain amount of elastic compression to the tree trunk, thereby ensuring clamping stability while effectively reducing localized compression and damage to the trunk. The elastic compression on each side is 5mm to 15mm, resulting in a total elastic compression of approximately 10mm to 30mm in the diameter direction, keeping the tree trunk in a flexible clamping state, preventing slippage and effectively avoiding excessive localized compression and damage.

[0042] For small-diameter, medium-diameter, and large-diameter tree trunks, appropriate speed and pressure combinations are selected respectively to ensure stable operation of the felling head under various diameter-of-breast-length and timber properties while guaranteeing passability and operational safety, significantly improving the adaptability and reliability of felling and debranching operations.

[0043] To balance operational efficiency and operational stability during the feeding process for tree trunks of varying diameters and structural characteristics, the feeding speed of the roller assembly 33 can be adjusted within the range of 0.8 m / s to 4.0 m / s. Specifically, for smaller diameter and straight tree trunks, the feeding speed should be set to 2.5 m / s to 3.5 m / s to improve operational efficiency; for medium diameter tree trunks, the feeding speed should be adjusted to 1.5 m / s to 2.5 m / s to balance operational efficiency and operational stability; and for larger diameter tree trunks, those with more knots, or those with greater curvature, the feeding speed should be controlled between 0.8 m / s and 1.5 m / s to reduce impact and prevent jamming.

[0044] To balance the clamping reliability of the roller assembly 33 with its adaptability to different trunk conditions, the clamping pressure of the roller assembly 33 is adjusted by the second drive assembly 31. Specifically, for small-diameter or softer trunks, the roller clamping pressure is set to 6MPa to 7MPa to prevent excessive compression of the trunk; for medium-diameter trunks, the roller clamping pressure is 7MPa to 9MPa to ensure sufficient frictional driving force; and for large-diameter trunks and trunks with ice, snow, or slippery surfaces, the roller clamping pressure is increased to 9MPa to 10MPa to avoid slippage and ensure continuous and stable feeding.

[0045] To balance clamping stability and trunk surface protection, the clamping pressure of the clamping assembly 21 is adjusted via the first drive assembly 22. For small-diameter trunks or situations requiring special protection of the trunk surface, the clamping pressure is set to 5 MPa to 6 MPa; while for medium-diameter and larger-diameter trunks, the clamping pressure is adjusted to 6 MPa to 7 MPa. This graded pressure control method ensures the stability of the clamping process while effectively reducing the risk of trunk damage.

[0046] To achieve efficient and stable control of pruning and feeding of tree trunks with different diameters at breast height (DBH) and wood properties, both the first drive assembly 22 and the second drive assembly 31 adopt hydraulic systems to precisely adjust the feeding speed of the conveying mechanism 3, the clamping force of the roller assembly 33 and the clamping assembly 21, as well as the distance between the cutting part 24 and the tree trunk, so as to adapt to tree trunks with different DBH and wood properties and ensure the continuity and stability of the pruning and feeding process.

[0047] The first drive assembly 22 adjusts the clamping effect between the clamping assembly 21 and the timber, thus forming the first degree of freedom of the device; the second drive assembly 31 adjusts the clamping effect between the roller assembly 33 and the timber, forming the second degree of freedom of the device; and the rotation assembly 32 adjusts the rotational speed of the roller assembly 33, forming the third degree of freedom of the device. Through the synergistic effect of these three degrees of freedom, the device possesses excellent flexibility and operability in debranching operations, enabling integrated operations of timber clamping, debranching, and conveying. The device can flexibly adjust its position while clamping timber, ensuring a continuous and efficient debranching and conveying process, thereby significantly improving operational efficiency and broadening its applicability.

[0048] In this embodiment, specifically, the clamping mechanism 2 further includes a support member 23, which is fixed on the frame 1. The clamping assembly 21 is rotatably disposed on the support member 23. The first driving assembly 22 is connected to the clamping assembly 21 and is used to drive the clamping assembly 21 to rotate.

[0049] The support member 23 provides a stable mounting base for the clamping assembly 21, and its fixed connection with the frame 1 ensures the structural stability of the entire clamping mechanism 2 during operation. The clamping assembly 21 is rotatably mounted on the support member 23, allowing it to rotate around the axis of the support member 23, thereby enabling the clamping of trees of different thicknesses.

[0050] In this embodiment, specifically, the clamping component 21 includes two clamping claws, which are respectively disposed on both sides of the preset path. The first driving component 22 is connected to the two clamping claws and is used to drive the two clamping claws to move closer to or away from the preset path.

[0051] Optionally, two support members 23 are provided, located on both sides of the preset path. The first drive assembly 22 includes two hydraulic cylinders. Each support member 23 is equipped with a clamping claw and a hydraulic cylinder. The hydraulic cylinder on one support member 23 is connected to the clamping claw on the other support member 23 to ensure that the clamping claw can rotate about the support member 23 as an axis when the hydraulic cylinder extends or retracts.

[0052] This design allows the two gripping claws to cooperate in opening and closing. When the hydraulic cylinder on one side extends, the gripping claw on the other side connected to it rotates inward around its supporting member 23. At the same time, the hydraulic cylinder on the other side shortens, causing its connected gripping claw to also rotate inward, thus jointly completing the gripping operation of the target object. Conversely, when the hydraulic cylinder moves in the opposite direction, the gripping claw rotates outward to release. Through this linkage structure, the stability and synchronization of the gripping process can be effectively improved, ensuring that the trees can be smoothly gripped and moved along the preset path.

[0053] Optionally, the two gripping claws are staggered to better adapt to any tilts or irregular protrusions on the tree surface, ensuring that the claws do not slip or become unstable during gripping due to the local curvature of the tree. Simultaneously, this staggered design creates a wraparound force-bearing structure when the claws are closed, distributing the gripping force more evenly across different contact points on the tree, reducing localized pressure on the bark, and preventing damage when gripping thinner or more fragile trees.

[0054] During operation, the pressure and flow of the hydraulic cylinder are precisely adjusted to allow the gripper to close rapidly to near the tree trunk. When the system pressure reaches the preset value, the hydraulic cylinder is pressure-limited to create a stable gripping force. Simultaneously, the stroke of the hydraulic cylinder is finely adjusted based on real-time pressure to ensure that the gripper maintains appropriate gripping force under different diameters at breast height (DBH) conditions, and maintains an elastic compression gap of approximately 5 to 15 millimeters on each side, effectively preventing insufficient gripping or excessive compression.

[0055] In this embodiment, specifically, the clamping component 21 is arc-shaped; and / or, the clamping component 21 has an anti-slip layer on the side closest to the tree.

[0056] The curved design better conforms to the natural contours of the trees, increasing the contact area with the tree surface and thus improving clamping stability, preventing localized damage to the trees due to overly concentrated clamping points. The anti-slip layer effectively increases the friction between the clamping component 21 and the trees, preventing slippage during use and ensuring the durability of the clamping effect. The anti-slip layer's effect is even more significant when the tree surface is smooth or has a certain degree of moisture, further ensuring the safety and reliability of the entire operation.

[0057] In this embodiment, specifically, the roller assembly 33 includes a support base 332 and a conveying roller 333. The support base 332 is rotatably mounted on the frame 1. The second drive assembly 31 is connected to the support base 332 and is used to drive the support base 332 to rotate. The conveying roller 333 is rotatably mounted on the support base 332. The rotating assembly 32 is mounted on the support base 332 and connected to the conveying roller 333.

[0058] When the second drive assembly 31 is activated, the support base 332 causes the conveyor roller 333 to deflect around the rotation axis of the frame 1, thereby adjusting the tilt angle of the conveyor roller 333. Meanwhile, the rotating assembly 32 can independently drive the conveyor roller 333 to rotate. With the angle of the support base 332 fixed, the rotation of the conveyor roller 333 achieves the straight-line transport of trees. The combination of the two enables the roller assembly 33 to have flexible adjustment capabilities and stable transport power during the transport of trees.

[0059] Optionally, the conveying roller 333 has a hollow cylindrical structure and is connected to the rotating assembly 32 through a disc-shaped plate-like adapter plate.

[0060] The hollow structure design effectively reduces the overall weight of the conveying roller 333 and lowers the load on the rotating component 32 during the driving process, thereby improving the stability of equipment operation and energy efficiency. Simultaneously, the tubular hollow structure facilitates internal wiring or the installation of auxiliary monitoring components, while the disc-shaped adapter plate increases the contact area with the rotating component 32, ensuring a secure connection and preventing the conveying roller 333 from wobbling or shifting during high-speed rotation, thus guaranteeing the accuracy and continuity of the material conveying process.

[0061] During operation, by adjusting the rotating component 32, the feeding speed of the conveying roller 333 can be flexibly adjusted within the range of 0.8m / s to 4.0m / s; at the same time, by adjusting the second drive component 31, the clamping pressure of the conveying roller 333 is controlled between 6MPa and 10MPa to adapt to the needs of tree trunks with different diameters at breast height and different wood properties.

[0062] In this embodiment, specifically, a clamping strip 331 is provided on the conveying roller 333. The clamping strip 331 has a long strip structure and is arranged circumferentially along the outer side of the conveying roller 333. The clamping strip 331 can provide a stable clamping effect during material conveying, effectively reducing the risk of slippage caused by changes in conveying speed or smooth material surface.

[0063] In this embodiment, specifically, the clamping strip 331 is detachably mounted on the conveying roller 333.

[0064] The clamping strip 331 is detachably fixed to the conveyor roller 333 by bolts, facilitating replacement. On the side away from the roller surface, the clamping strip 331 has arc-shaped indentations at both ends towards the center, with a radius of 120-180 mm and an edge protrusion height of 3-6 mm, further increasing effective contact and friction and suppressing slippage.

[0065] Optionally, the length direction of the clamping strip 331 is aligned with the axial direction of the conveying roller 333 to enhance the friction between it and the tree trunk and prevent slippage during conveying.

[0066] In this embodiment, specifically, the conveying roller 333 is concave in an arc shape from both ends toward the middle, thereby enhancing its adhesion to the tree trunk surface and preventing slippage during conveying. Simultaneously, it increases the contact area with the wood surface, improving friction and ensuring that the wood conveying process remains stable and continuous under different combinations of feeding speeds and clamping pressures.

[0067] In this embodiment, specifically, two roller assemblies 33 are provided, and the two roller assemblies 33 are respectively located on both sides of the preset path. The second drive assembly 31 is used to drive the two roller assemblies 33 to move closer to or away from the preset path.

[0068] In this embodiment, the debranching device further includes an auxiliary guide wheel 4. The auxiliary guide wheel 4 is rotatably mounted on the frame 1 and located around the periphery of the preset path. The auxiliary guide wheel 4 abuts against the trees and plays a guiding and supporting role during the wood conveying process, while also appropriately increasing friction. The rotation of the auxiliary guide wheel 4 can be transmitted to the wood with almost no loss, thereby ensuring that the set rotation speed is the actual effective conveying speed and avoiding energy loss or unstable conveying due to slippage.

[0069] Optionally, the auxiliary guide wheel 4 consists of a guide wheel 41 and a guide shaft 42. The guide shaft 42 is rotatably mounted in the middle of the frame 1. The guide wheel 41 is mounted on the guide shaft 42 and located between the two roller assemblies 33, serving to support and guide the timber, ensuring its smooth operation during transport. The outer surface of the guide wheel 41 is designed with a regularly distributed frustum-shaped structure, which can significantly improve the coefficient of friction between the guide wheel 41 and the timber surface, thereby enhancing the stability and energy transfer efficiency of the transport process.

[0070] Optionally, an elastic element is provided between the guide wheel 41 and the guide shaft 42 as a floating support, and the guide wheel 41 can adapt to the bending of the tree trunk within a range of ±8°.

[0071] During the pruning process, the trees to be pruned are placed on a preset path. The conveying rollers 333, driven by the second drive assembly 31, first rotate inwards and grip the trees. The pair of conveying rollers 333 and the center of the auxiliary guide wheel 4 form a stable three-point support structure, ensuring even force distribution and stable posture on the trunk. Subsequently, the gripping claws, driven by the first drive assembly 22, rotate inwards and press against the tree bark, clamping and positioning the tree. Next, driven by the rotating assembly 32, the conveying rollers 333 use rolling friction to propel the trees smoothly along the preset path, simultaneously rotating the auxiliary tree wheel. During transport, the cutting section 24 applies a pruning action to cut thicker branches, while the conveying rollers 333 further remove smaller and residual branches through the combined action of squeezing and rolling, leaving the tree surface basically smooth and without obvious stumps. The entire process is highly automated and operates smoothly and reliably.

[0072] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these modifications are within the protection scope of the present invention.

Claims

1. A tree debranching device, characterized in that, The device comprises a conveying mechanism and a frame, the conveying mechanism comprises a second driving assembly, a rotating assembly and a roller assembly, the roller assembly is arranged on the frame and located at the periphery of the preset path for contacting the trees, the rotating assembly drives the roller assembly to rotate to drive the trees to move along the preset path, and the second driving assembly is connected with the roller assembly and used to drive the roller assembly to move close to or away from the preset path. The device further comprises a clamping mechanism, the clamping mechanism comprises a first driving assembly and a clamping assembly, the first driving assembly is connected with the clamping assembly to drive the clamping assembly to open and close, the clamping assembly is arranged on the frame and located at the periphery of the preset path for clamping the trees, and a cutting part is arranged on the clamping assembly for contacting the trees. The clamping mechanism further comprises a supporting member fixed on the frame, the clamping assembly is rotatably arranged on the supporting member, and the first driving assembly is connected with the clamping assembly and used to drive the clamping assembly to rotate.

2. The tree debranching device of claim 1, wherein, The clamping assembly comprises two clamping claws arranged on the two sides of the preset path, the first driving assembly is connected with the two clamping claws and used to drive the two clamping claws to move close to or away from the preset path.

3. The tree debranching device of claim 1, wherein, The clamping assembly is arc-shaped.

4. The tree debranching device of claim 3, wherein, And / or, a non-slip layer is arranged on the side of the clamping assembly close to the trees. The roller assembly comprises a supporting seat and a conveying roller, the supporting seat is rotatably arranged on the frame, the second driving assembly is connected with the supporting seat and used to drive the supporting seat to rotate, and the conveying roller is rotatably arranged on the supporting seat, the rotating assembly is arranged on the supporting seat and connected with the conveying roller.

5. The tree debranching device of claim 1, wherein, The clamping pressing strip arranged on the conveying roller is in a long strip structure and arranged circumferentially along the outer side of the conveying roller.

6. A tree debranching device according to claim 5, wherein, The clamping pressing strip is detachably arranged on the conveying roller.

7. A tree debranching device according to claim 6, characterised in that The conveying roller is arc-shaped recessed from the two ends to the middle part.

8. The tree debranching device of claim 5, wherein, The device further comprises two roller assemblies, the two roller assemblies are arranged on the two sides of the preset path, and the second driving assembly is used to drive the two roller assemblies to move close to or away from the preset path.

9. The tree debranching device of claim 1, wherein, The tree branch removing device further comprises an auxiliary guide wheel, the auxiliary guide wheel is rotatably arranged on the frame and located at the periphery of the preset path, and the auxiliary guide wheel abuts against the trees.

10. The tree debranching device of claim 1, wherein, ​