Branch cutting device for dangerous trees along railway
By designing a tree-pruning device for dangerous trees along railway lines, and utilizing a combination of rotating, clamping, and cutting mechanisms, wireless remote control was achieved for tree pruning, solving the safety hazards caused by manual tree climbing and improving operational safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CREC RAILWAY ELECTRIFICATION RAILWAY OPERATIONS MANAGEMENT
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, tree trimming along railway lines requires manual climbing of trees, which poses safety hazards and makes it difficult to effectively avoid the risk of branches falling and damaging equipment or injuring people.
A device for pruning dangerous trees along railway lines has been designed, including a rotating mechanism, a mounting frame, a clamping mechanism, and a cutting mechanism. It enables remote pruning of tree branches via wireless remote control and is equipped with an emergency stop function and a safety protection module to ensure operational safety.
It enables remote tree trimming without the need for manual climbing, improving operational safety and efficiency, avoiding the risk of branches falling, and ensuring the safety of equipment and personnel.
Smart Images

Figure CN224165259U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tree trimming along railway lines, and specifically relates to a device for trimming dangerous trees along railway lines. Background Technology
[0002] As the mileage of electrified railways increases, the number of green trees and landscape trees planted along the railway lines is also increasing. As the trees continue to grow, become lush and leafy, or their roots rot, it is highly likely that branches will short-circuit the electrified railway power supply equipment or trees will fall onto the electrified railway, causing the railway power supply equipment to trip, affecting the normal transportation order of the railway system, and in severe cases, it may lead to railway accidents.
[0003] Because the branches of dangerous trees along electrified railways are generally more than 6 meters higher than the rail surface, workers often have to climb the trees to cut them down. The inconvenient standing position of the workers makes it easy for them to fall from a height or be injured or scratched by the felled branches. Summary of the Invention
[0004] To address the safety hazards associated with manual operation in existing technologies, this invention provides a device for trimming dangerous trees along railway lines, comprising a rotating mechanism, a mounting frame, a clamping mechanism, and a cutting mechanism.
[0005] The mounting bracket is mounted on the rotating mechanism, which controls the rotation of the mounting bracket. The clamping mechanism and the cutting mechanism are mounted on the mounting bracket, with the clamp of the clamping mechanism and the cutting tool of the cutting mechanism both located on the side away from the rotating mechanism.
[0006] According to some embodiments of this application, a device for trimming dangerous trees along a railway line is provided. The mounting frame includes a first mounting frame, a second mounting frame, and an mounting platform. The mounting platform is fixedly mounted on the rotating mechanism. The axes of the first mounting frame and the second mounting frame are perpendicular to the mounting platform and are fixedly connected. The end of the first mounting frame away from the mounting platform is hinged to the clamping mechanism, and the end of the second mounting frame away from the mounting platform is fixedly connected to the cutting mechanism.
[0007] According to some embodiments of this application, a device for trimming dangerous trees along a railway line is provided, wherein the clamping mechanism includes a clamp, a connecting rod assembly, and an electric cylinder;
[0008] One end of the clamp is hinged to the first mounting frame via a connecting rod assembly, and the connecting rod assembly is hinged to the telescopic end of the electric cylinder. The electric cylinder is fixed to the mounting platform, and the electric cylinder can open and close the clamp by controlling the telescopic extension of the connecting rod assembly.
[0009] According to some embodiments of this application, a device for cutting branches off dangerous trees along a railway line is provided, wherein the cutting mechanism includes a rotary gear motor, an electric saw, and a limit switch;
[0010] The rotary reduction motor is fixed on the second mounting bracket and hinged to the tail end of the chainsaw. The limit switch is located near the tail end of the chainsaw and can limit the rotation angle of the chainsaw.
[0011] According to some embodiments of this application, a device for trimming dangerous trees along a railway line is provided, which further includes a wireless communication module. The wireless communication module includes a remote control receiver and a remote control transmitter. The remote control receiver and the remote control transmitter are signal-connected. The remote control receiver is connected to the cutting mechanism. The remote control transmitter can control the start, stop, and reverse rotation of the rotary reduction motor.
[0012] A device for trimming dangerous trees along a railway line, according to some embodiments of this application, further includes a pressure sensor, which is disposed on the clamp and is capable of detecting the clamping force of the clamp.
[0013] A device for trimming dangerous trees along a railway line, according to some embodiments of this application, further includes a safety protection module, which is equipped with an emergency stop button capable of cutting off the main power supply.
[0014] The beneficial effects of this invention are:
[0015] This application fills the gap in the existing lack of specialized equipment or devices for cutting branches off dangerous trees along railway lines. It allows workers to work without climbing trees, thus avoiding the risk of felled branches damaging power supply equipment or injuring workers.
[0016] It can perform tree trimming operations remotely, has an emergency stop function, and can stop the operation with one click in case of emergencies. It has high safety and stability, and greatly improves the work efficiency and safety of operators. Attached Figure Description
[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of some embodiments of this application;
[0019] Figure 2 These are schematic diagrams of the clamping mechanism structure according to some embodiments of this application;
[0020] Figure 3 This is a schematic diagram of the clamp in the open state of some embodiments of this application;
[0021] Figure 4This is a schematic diagram of the cutting mechanism of some embodiments of this application.
[0022] In the diagram: 1. Rotating mechanism; 2. Mounting frame; 21. First mounting frame; 22. Second mounting frame; 23. Mounting platform; 3. Clamping mechanism; 31. Fixture; 32. Linkage assembly; 33. Electric cylinder; 4. Cutting mechanism; 41. Rotary geared motor; 42. Electric saw; 43. Limit switch. Detailed Implementation
[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] like Figures 1-4 As shown, the present invention provides a device for trimming dangerous trees along railway lines, including a rotating mechanism 1, a mounting frame 2, a clamping mechanism 3, and a cutting mechanism 4;
[0026] Mounting bracket 2 is mounted on rotating mechanism 1, which can control the rotation of mounting bracket 2. Clamping mechanism 3 and cutting mechanism 4 are mounted on mounting bracket 2. The clamps of clamping mechanism 3 and the cutting tools of cutting mechanism 4 are both located on the side away from rotating mechanism 1.
[0027] In practice, one side of the rotating mechanism 1 is connected to the main arm of the vehicle, and the other end is connected to the mounting frame 2. The rotation of the rotating mechanism 1 can control the rotation of the mounting frame 2 and other devices set on the mounting frame 2. After rotating to a suitable position, the wood to be cut is clamped by the clamping mechanism 3, and the wood is cut by the cutting mechanism 4.
[0028] In some embodiments, the mounting frame 2 includes a first mounting frame 21, a second mounting frame 22, and a mounting platform 23. The mounting platform 23 is fixedly mounted on the rotating mechanism 1. The axes of the first mounting frame 21 and the second mounting frame 22 are perpendicular to the mounting platform 23 and are fixedly connected. The end of the first mounting frame 21 away from the mounting platform 23 is hinged to the clamping mechanism 3, and the end of the second mounting frame 22 away from the mounting platform 23 is fixedly connected to the cutting mechanism 4.
[0029] In practice, the first mounting frame 21 and the second mounting frame 22 are fixedly connected to the rotating mechanism 1 through the mounting platform 23. When the rotating mechanism 1 rotates, the first mounting frame 21, the second mounting frame 22, and other devices set on the two mounting frames rotate synchronously through the mounting platform 23.
[0030] In some embodiments, the clamping mechanism 3 includes a clamp 31, a linkage assembly 32, and an electric cylinder 33;
[0031] One end of the clamp 31 is hinged to the first mounting frame 21 via the connecting rod assembly 32. The connecting rod assembly 32 is hinged to the telescopic end of the electric cylinder 33. The electric cylinder 33 is fixed on the mounting platform 23. The electric cylinder 33 can open and close the clamp 31 by controlling the telescopic extension of the connecting rod assembly 32.
[0032] In practice, when the electric cylinder 33 extends, the connecting rod assembly 32 retracts to clamp the wood with the clamp 31; when the electric cylinder 33 retracts, the connecting rod assembly 32 extends to open the clamp 31.
[0033] In some embodiments, the cutting mechanism 4 includes a rotary reduction motor 41, an electric saw 42, and a limit switch 43;
[0034] The rotary reduction motor 41 is fixed on the second mounting bracket 22 and hinged to the tail end of the electric saw 42. The limit switch 43 is located near the tail end of the electric saw 42 and can limit the rotation angle of the electric saw 42.
[0035] In practice, the tilt angle of the electric saw 42 can be controlled by rotating the rotary reduction motor 41. When the electric saw 42 is in a suitable position, it is fixed by the limit switch 43. The electric saw 42 is started to cut the clamped wood. The maximum swing amplitude of the electric saw is 180°. There is a limit switch at the upper limit and lower limit of the electric saw swing.
[0036] In some embodiments, a wireless communication module is also included. The wireless communication module includes a remote control receiver and a remote control transmitter. The remote control receiver and the remote control transmitter are signal-connected. The remote control receiver is connected to the cutting mechanism 4. The remote control transmitter can control the start, stop and reverse rotation of the rotary reduction motor 41.
[0037] In practice, the remote control receiver of the wireless communication module includes a 2.4GHz RF (such as NRF24L01) or an industrial Wi-Fi / Bluetooth module, and the remote control transmitter can be a handheld remote control (2.4GHz RF or Bluetooth / Wi-Fi). The operator sends commands through the remote control transmitter to control the motor's start, stop and direction.
[0038] In some embodiments, a pressure sensor is also included, which is disposed on the clamp 31 and is capable of detecting the clamping force of the clamp 31.
[0039] In practice, the pressure sensor can adjust the clamping force in real time to prevent the branches from breaking.
[0040] In some embodiments, a safety protection module is also included, which is equipped with an emergency stop button capable of cutting off the main power supply.
[0041] In practice, an emergency stop circuit (ESD) is used, with a hard-wired emergency stop button that can directly cut off the main power supply. It is also equipped with leakage current protection (RCD) to prevent the risk of electric shock caused by insulation failure. In addition, a fault alarm module is set up to notify the operator through audible and visual alarms or wirelessly in the event of overcurrent, overheating, or communication interruption.
[0042] In some embodiments, the following operational steps are included in the specific implementation:
[0043] Step 1: The operator starts the device via remote control and first adjusts the extension height of the vehicle's boom so that the cutting device is positioned at the branch that needs to be cut.
[0044] Step 2: Adjust the angle of the gripper mechanism to position the chainsaw on the target tree branch;
[0045] Step 3: The gripper mechanism holds the branch that is about to be cut tightly;
[0046] Step 4: Send the cutting command remotely, and the chainsaw will continue to work until the branch is cut off and then stop.
[0047] In the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0048] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0049] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.
[0050] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.
Claims
1. A device for trimming dangerous trees along railway lines, characterized in that, Includes a rotating mechanism, mounting bracket, clamping mechanism, and cutting mechanism; The mounting bracket is mounted on the rotating mechanism, which controls the rotation of the mounting bracket. The clamping mechanism and the cutting mechanism are mounted on the mounting bracket, with the clamp of the clamping mechanism and the cutting tool of the cutting mechanism both located on the side away from the rotating mechanism.
2. The device for trimming dangerous trees along a railway line according to claim 1, characterized in that, The mounting frame includes a first mounting frame, a second mounting frame, and a mounting platform. The mounting platform is fixedly mounted on the rotating mechanism. The axes of the first mounting frame and the second mounting frame are perpendicular to the mounting platform and are fixedly connected. The end of the first mounting frame away from the mounting platform is hinged to the clamping mechanism, and the end of the second mounting frame away from the mounting platform is fixedly connected to the cutting mechanism.
3. A device for trimming dangerous trees along a railway line according to claim 2, characterized in that, The clamping mechanism includes a clamp, a linkage assembly, and an electric cylinder; One end of the clamp is hinged to the first mounting frame via a connecting rod assembly, and the connecting rod assembly is hinged to the telescopic end of the electric cylinder. The electric cylinder is fixed to the mounting platform, and the electric cylinder can open and close the clamp by controlling the telescopic extension of the connecting rod assembly.
4. A device for trimming dangerous trees along a railway line according to claim 3, characterized in that, The cutting mechanism includes a rotary gear motor, an electric saw, and a limit switch; The rotary reduction motor is fixed on the second mounting bracket and hinged to the tail end of the chainsaw. The limit switch is located near the tail end of the chainsaw and can limit the rotation angle of the chainsaw.
5. A device for trimming dangerous trees along a railway line according to claim 4, characterized in that, It also includes a wireless communication module, which includes a remote control receiver and a remote control transmitter. The remote control receiver and the remote control transmitter are signal-connected. The remote control receiver is connected to the cutting mechanism. The remote control transmitter can control the start, stop and reverse rotation of the rotary reduction motor.
6. A device for trimming dangerous trees along a railway line according to claim 5, characterized in that, It also includes a pressure sensor, which is disposed on the clamp and is capable of detecting the clamping force of the clamp.
7. A device for trimming dangerous trees along a railway line according to claim 6, characterized in that, It also includes a safety protection module, which is equipped with an emergency stop button that can cut off the main power supply.