阅读说明：本技术 树木远程带电砍伐机械臂及使用方法 (Remote electrified tree felling mechanical arm and using method ) 是由 郑孝干 吴烽 何力坚 何思炳 李响 冯振波 王启强 庄学平 卢勋 张元伟 陈�峰 于 2020-03-27 设计创作，主要内容包括：本发明提出一种树木远程带电砍伐机械臂及使用方法,其特征在于：包括：固定机构、第一摆动机构、第二摆动机构、执行机构、无线信号传输模块和控制系统；第一摆动机构包括与固定机构固定连接大臂底座、与大臂底座在第一平面构成铰接的大臂、以及控制大臂摆动的第一动力机构；第二摆动机构包括与大臂在第一平面构成滑槽连接的小臂底座、与小臂底座在第二平面构成铰接且与大臂相互垂直的小臂、控制小臂底座滑动的第二动力机构、以及控制小臂摆动的第三动力机构；执行机构固定在小臂末端。其整套成果灵活性好、通用性强、安全性高,解决了目前带电运行线路走廊下方大型树木砍伐存在的诸多人身和设备的安全隐患等问题。(The invention provides a remote electrified tree felling mechanical arm and a using method, which are characterized in that: the method comprises the following steps: the device comprises a fixing mechanism, a first swing mechanism, a second swing mechanism, an actuating mechanism, a wireless signal transmission module and a control system; the first swinging mechanism comprises a large arm base fixedly connected with the fixing mechanism, a large arm hinged with the large arm base on a first plane, and a first power mechanism for controlling the large arm to swing; the second swing mechanism comprises a small arm base, a small arm, a second power mechanism and a third power mechanism, wherein the small arm base is connected with the large arm in a sliding groove formed in a first plane, the small arm is hinged with the small arm base in a second plane and is perpendicular to the large arm, the second power mechanism controls the small arm base to slide, and the third power mechanism controls the small arm to swing; the actuating mechanism is fixed at the tail end of the small arm. The whole set of the tree felling machine has the advantages of good flexibility, strong universality and high safety, and solves the problems of potential safety hazards of a plurality of persons and equipment in the process of felling large trees below a corridor on the existing live-line operation line.)

1. The utility model provides a long-range electrified arm of felling of tree which characterized in that includes: the device comprises a fixing mechanism, a first swing mechanism, a second swing mechanism, an actuating mechanism, a wireless signal transmission module and a control system; the first swinging mechanism comprises a large arm base fixedly connected with the fixing mechanism, a large arm hinged with the large arm base on a first plane, and a first power mechanism for controlling the large arm to swing; the second swinging mechanism comprises a small arm base, a small arm, a second power mechanism and a third power mechanism, wherein the small arm base is connected with the large arm in a sliding groove formed on a first plane, the small arm is hinged with the small arm base on a second plane and is perpendicular to the large arm, the second power mechanism controls the small arm base to slide, and the third power mechanism controls the small arm to swing; the first plane and the second plane are perpendicular to each other; the actuating mechanism is fixed at the tail end of the small arm; the control system comprises a local controller and a remote controller; the first power mechanism, the second power mechanism, the third power mechanism and the executing mechanism are respectively connected with a local controller, and the local controller is wirelessly connected with the remote controller through a wireless signal transmission module; the actuating mechanism is an electric saw or a chain saw; and the guide plate of the electric saw or the chain saw is fixedly provided with an inclination angle sensor, and the inclination angle sensor is connected with a local controller.

2. The remote charged tree felling mechanical arm of claim 1, wherein: the system also comprises a wireless image transmission module and a rotary camera which are connected; the rotating plane of the rotating camera is parallel to the plane of the big arm; the wireless image transmission module is wirelessly connected with the display screen; the rotary camera is connected with the local controller.

3. The remote charged tree felling mechanical arm of claim 1, wherein: the fixing mechanism comprises an arc-shaped clamp and a flexible hoop which are connected; the flexible staple bolt includes: a strap and ratchet tightener.

4. The remote charged tree felling mechanical arm of claim 1, wherein: the first power mechanism is an electric screw rod; and two ends of the electric screw rod are respectively hinged with the large arm and the large arm base.

5. The remote charged tree felling mechanical arm of claim 4, wherein: the big arm base comprises a big arm mounting groove and an electric screw rod mounting groove which are perpendicular to each other.

6. The remote charged tree felling mechanical arm of claim 1, wherein: the second power mechanism comprises a second screw rod and a second motor which are connected; the second screw rod is connected with the small arm base.

7. The remote charged tree felling mechanical arm of claim 1, wherein: the small arm base comprises a small arm mounting groove and a rotating shaft mounting groove which are arranged in parallel; the third power mechanism comprises a rotating shaft and a steering engine which are connected; the rotating shaft penetrates through the rotating shaft mounting groove and the small arm mounting groove, and the small arm base is fixedly connected with the small arm at the hinged point of the small arm base and the small arm.

8. The remote charged tree felling mechanical arm of claim 1, wherein: the remote controller adopts a Ustart HMI serial port screen; the wireless signal transmission module adopts a 2.4G wireless module.

9. The remote charged tree felling mechanical arm of claim 2, wherein: the actuating mechanism adopts an electric saw; the first power mechanism, the second power mechanism, the third power mechanism, the image transmission module, the rotary camera, the wireless signal transmission module, the inclination angle sensor and the local controller are powered by a high-capacity lithium battery.

10. The method of using the remote powered tree felling robot as claimed in any one of claims 1 to 9, wherein the actuator is selected from a power saw, comprising the steps of:

step S1: fixing a fixing mechanism on a felling operation surface of a trunk;

step S2: fastening the large arm base on the fixing mechanism through bolts;

step S3: fastening the electric saw at the tail end of the small arm through a bolt;

step S4: connecting a power line and a control line; removing a chain protective sleeve of the electric saw and installing a battery;

step S5: opening a main power supply, and resetting an initial angle of a large arm, an initial position of an electric saw and a pitch angle of the electric saw;

step S6: raising the pitch angle of the electric saw to ensure that the electric saw guide plate is vertical to the tree, and moving the electric saw to the edge of the trunk;

step S7: setting the stepping amount of the electric saw to cut into 1/4-1/3 depths of the diameter of the trunk;

step S8: adjusting the angle of the big arm to be 30-45 degrees, and obliquely cutting to make the trunk open a lower triangular opening; the bevel edge of the wedge-shaped wood block of the cut lower triangular opening faces downwards, and the wedge-shaped wood block automatically separates under the driving of an electric saw chain and the self gravity of the wood block to form a lower triangular opening;

step S9: after the initial angle of the large arm, the initial position of the electric saw and the pitch angle of the electric saw are reset, enabling the guide plate of the electric saw to be vertical to the tree, and moving the electric saw to the edge of the trunk on the other side;

step S10: controlling the electric saw to horizontally cut into the trunk.

Technical Field

The invention belongs to the field of tree cutting technology and electric power facility maintenance and obstacle clearing, and particularly relates to a mechanical arm for remotely cutting large trees in an electric power line corridor in an electrified manner and a using method of the mechanical arm.

Background

In the middle of the maintenance of electric power facility, line corridor often has large-scale trees and needs the clearance of felling, and at present, all trees are felled and are all carried out through artifical bare-handed closely mode, and the person that fells not only will obey the safe use of electric saw constantly at the in-process of felling, still must compromise simultaneously and judge the trees opportunity of falling down and withdraw the opportunity safely. If large trees close to the live wire are felled, the judgment of the inversion is wrong or people are not evacuated timely, and personal electric shock or other dangerous conditions are possibly caused. In addition, when large trees are cut by manually using an electric saw (chain saw), saw guide plates and saw chains are often crushed and bounced by fallen trees, and fellers are easily injured.

Disclosure of Invention

In order to overcome the defects and shortcomings of the prior art, the invention provides a scheme of a large-scale tree long-distance electrified felling mechanical arm in a power line corridor, the large-scale tree can be felled by controlling the mechanical arm provided with an oil saw (electric saw) in a long-distance (visual) remote control mode under the condition that a power transmission line is electrified, so that an operator is far away from the falling range of the tree, the operation efficiency is improved, and the safety of large-scale tree felling can be greatly improved. The technical scheme is as follows:

the utility model provides a long-range electrified arm of felling of tree which characterized in that includes: the device comprises a fixing mechanism, a first swing mechanism, a second swing mechanism, an actuating mechanism, a wireless signal transmission module and a control system; the first swinging mechanism comprises a large arm base fixedly connected with the fixing mechanism, a large arm hinged with the large arm base on a first plane, and a first power mechanism for controlling the large arm to swing; the second swinging mechanism comprises a small arm base, a small arm, a second power mechanism and a third power mechanism, wherein the small arm base is connected with the large arm in a sliding groove formed on a first plane, the small arm is hinged with the small arm base on a second plane and is perpendicular to the large arm, the second power mechanism controls the small arm base to slide, and the third power mechanism controls the small arm to swing; the first plane and the second plane are perpendicular to each other; the actuating mechanism is fixed at the tail end of the small arm; the control system comprises a local controller and a remote controller; the first power mechanism, the second power mechanism, the third power mechanism and the executing mechanism are respectively connected with a local controller, and the local controller is wirelessly connected with the remote controller through a wireless signal transmission module; the actuating mechanism is an electric saw or a chain saw; and the guide plate of the electric saw or the chain saw is fixedly provided with an inclination angle sensor, and the inclination angle sensor is connected with a local controller.

Preferably, the system also comprises a wireless image transmission module and a rotary camera which are connected; the rotating plane of the rotating camera is parallel to the plane of the big arm; the wireless image transmission module is wirelessly connected with the display screen; the rotary camera is connected with the local controller.

Preferably, the fixing mechanism comprises an arc-shaped clamp and a flexible hoop which are connected; the flexible staple bolt includes: a strap and ratchet tightener.

Preferably, the first power mechanism is an electric screw rod; and two ends of the electric screw rod are respectively hinged with the large arm and the large arm base.

Preferably, the large arm base comprises a large arm mounting groove and an electric screw rod mounting groove which are perpendicular to each other.

Preferably, the second power mechanism comprises a second screw rod and a second motor which are connected with each other; the second screw rod is connected with the small arm base.

Preferably, the forearm base comprises a forearm mounting groove and a rotating shaft mounting groove which are arranged in parallel; the third power mechanism comprises a rotating shaft and a steering engine which are connected; the rotating shaft penetrates through the rotating shaft mounting groove and the small arm mounting groove, and the small arm base is fixedly connected with the small arm at the hinged point of the small arm base and the small arm.

Preferably, the remote controller adopts a Ustart HMI serial port screen; the wireless signal transmission module adopts a 2.4G wireless module.

Preferably, the actuating mechanism adopts an electric saw; the first power mechanism, the second power mechanism, the third power mechanism, the image transmission module, the rotary camera, the wireless signal transmission module, the inclination angle sensor and the local controller are powered by a high-capacity lithium battery.

Preferably, the use method of the remote electrified tree felling mechanical arm is provided, and the actuating mechanism selects an electric saw, and is characterized by comprising the following steps of:

step S1: fixing a fixing mechanism on a felling operation surface of a trunk;

step S2: fastening the large arm base on the fixing mechanism through bolts;

step S3: fastening the electric saw at the tail end of the small arm through a bolt;

step S4: connecting a power line and a control line; removing a chain protective sleeve of the electric saw and installing a battery;

step S5: opening a main power supply, and resetting an initial angle of a large arm, an initial position of an electric saw and a pitch angle of the electric saw;

step S6: raising the pitch angle of the electric saw to ensure that the electric saw guide plate is vertical to the tree, and moving the electric saw to the edge of the trunk;

step S7: setting the stepping amount of the electric saw to cut into 1/4-1/3 depths of the diameter of the trunk;

step S8: adjusting the angle of the big arm to be 30-45 degrees, and obliquely cutting to make the trunk open a lower triangular opening; the bevel edge of the wedge-shaped wood block of the cut lower triangular opening faces downwards, and the wedge-shaped wood block automatically separates under the driving of an electric saw chain and the self gravity of the wood block to form a lower triangular opening;

step S9: after the initial angle of the large arm, the initial position of the electric saw and the pitch angle of the electric saw are reset, enabling the guide plate of the electric saw to be vertical to the tree, and moving the electric saw to the edge of the trunk on the other side;

step S10: controlling the electric saw to horizontally cut into the trunk.

Compared with the prior art, the remote cutting method and the remote cutting device can be applied to remote cutting operation of trees below a 35-220kV power line corridor, are applicable to regular or special-shaped trunks, can be used for remote cutting in a remote visual control mode far away from a falling range, and can be used for judging falling time of the trees and timely and safely evacuating the trees without paying attention to the use safety of an electric saw in the cutting process. Meanwhile, the tree cutting is completed in a visual remote control mode, power failure is not needed, social production and life power utilization are not affected, and social benefits are remarkable. The mechanical arm is reasonable in structure, the weight of a single piece does not exceed 15kg after disassembly, and field carrying and operation are facilitated.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic diagram of the overall structure of an apparatus according to an embodiment of the present invention;

FIG. 2 is a perspective and isotropic view of a large arm according to an embodiment of the present invention;

FIG. 3 is a perspective and isotropic view of the base of the boom of the present invention;

FIG. 4 is a perspective and isotropic view of an arcuate clamp according to an embodiment of the present invention;

FIG. 5 is a perspective and isotropic view of the forearm base in accordance with an embodiment of the invention;

FIG. 6 is a perspective and isotropic view of a forearm of an embodiment of the invention;

FIG. 7 is a perspective and anisotropic view of a control boom rotating stationary head according to an embodiment of the present invention;

FIG. 8 is a schematic perspective and anisotropic view of a control macro-arm rotary head according to an embodiment of the present invention;

FIG. 9 is a schematic perspective and anisotropic view of an electric lead screw fixing block according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a circuit block according to an embodiment of the present invention;

FIG. 11 is a schematic view of a control interface 1 according to an embodiment of the present invention;

FIG. 12 is a schematic view of a control interface of an embodiment of the present invention 2;

FIG. 13 is a schematic illustration of a control interface 3 according to an embodiment of the present invention;

FIG. 14 is a schematic view of a control interface of an embodiment of the present invention 4;

in the figure: 101-an arc-shaped clamp; 102-a flexible hoop; 201-big arm base; 202-big arm; 203-electric screw rod; 204-controlling the large arm to rotate the movable head; 205-electric slide rail; 206-controlling the large arm to rotate the static head; 207-electric lead screw fixing block; 301-forearm base; 302-forearm; 303-a steering engine; 400-an electric saw; 501-rotating the camera; 600-an electric cabinet; 700-trunk.

Detailed Description

In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:

the device of the embodiment is divided according to functions and structures, and can be divided into: the device comprises a fixing mechanism, a first swing mechanism, a second swing mechanism, an executing mechanism, a monitoring module, a wireless signal transmission module and a control system.

As shown in fig. 1 and 4, the fixing mechanism is used to fix the whole device provided by this embodiment to a trunk 700 of a tree to be felled, and specifically includes an arc-shaped clamp 101 and a flexible hoop 102 connected to each other. In the specific scheme of this embodiment, fix arc anchor clamps 101 on trunk 700 through flexible staple bolt 102, flexible staple bolt 102 can be according to the trees of different diameters, freely adjusts, and the regulation length range is in 600 ~ 1200 mm. The arc-shaped clamp 101 is composed of two double wings with the height of 100mm, the total length of 150mm and the two sides opened at 160 degrees, and is vertically fixed at a proper position of a trunk 700 of a tree to be felled by using a flexible hoop 102. Can be suitable for felling trees with root diameters within 400 mm. The flexible anchor ear 102 is composed of a piece belt and a ratchet tightener, the piece belt has a total length of 1200mm and can be fixed on two wings of the arc-shaped anchor ear, and the arc-shaped anchor ear is fixed on the trunk 700 to be felled by tightening the ratchet tightener.

As shown in fig. 1 to fig. 3, the first swing mechanism includes a large arm base 201 fixedly connected to the fixing mechanism, a large arm 202 hinged to the large arm base 201 on a first plane, and a first power mechanism for controlling the large arm 202 to swing. In the specific scheme of the embodiment, as shown in fig. 3, the large arm base 201 comprises a vertical large arm 202 mounting groove and a horizontal electric screw rod 203 mounting groove which are perpendicular to each other. The large arm 202, shown in figure 2, is pinned through an aperture in the middle bottom to an aperture in the mounting slot of the large arm 202, forming a hinge in a first plane. The first power mechanism is specifically an electric screw rod 203 and accessories thereof; the two ends of the electric screw rod 203 are respectively hinged with the large arm 202 and the large arm base 201, so that the expansion and contraction of the electric screw rod 203 can accurately control the swing of the large arm 202 in the first plane. One end of the non-telescopic end of the electric screw rod 203 is directly hinged with the large arm base 201 through an electric screw rod 203 mounting groove with a hole at the bottom matched with the large arm base 201; the telescopic end of the electric screw 203 is a screw, which is not easy to form a hinge structure, so that the present embodiment is provided with three accessories as shown in fig. 7-9, wherein the large arm rotating static head 206 is fixed at the bottom of one side of the large arm 202, and a through hole is arranged below the large arm rotating static head; a threaded hole on one side of the electric screw rod fixing block 207 is fixedly connected with a screw rod, and through holes are also formed in the other two sides of the electric screw rod fixing block; the concave control large arm rotary moving head 204 is arranged at the outermost side and is also provided with a through hole structure; the through hole structures of the three fittings are connected through pins and hinged with each other, so that one end of a screw rod of the electric screw rod 203 is hinged with the large arm 202, the stretching of the screw rod is converted into the swinging of the large arm 202, and the swinging mainly has the effect of finishing the control of the cut angle for controlling the tree to fall.

As shown in fig. 1, 5 and 6, the second swing mechanism includes a small arm base 301 connected to the large arm 202 in a sliding way on a first plane, a small arm 302 hinged to the small arm base 301 on a second plane and perpendicular to the large arm 202, a second power mechanism for controlling the small arm base 301 to slide, and a third power mechanism for controlling the small arm 302 to swing. In the specific scheme of this embodiment, the second power mechanism includes the second lead screw and the second motor that are connected, the forearm base 301 is connected to the second lead screw, wherein the structure of second lead screw and second motor directly can adopt current electronic slide rail 205 structure to realize, in this embodiment, electronic slide rail 205 direct fixed mounting is on big arm 202, forearm base 301 direct mounting is on electronic slide rail 205, realize the accurate slip on big arm 202 through the drive of electronic slide rail 205, this motion process motion mainly is used for solving the stroke of the different diameter size of lumbering degree of depth of trees. As shown in fig. 5, the small arm base 301 includes a small arm 302 mounting groove and a rotating shaft mounting groove which are arranged in parallel; the small arm 302 shaped as shown in fig. 6 is installed in the small arm 302 installation groove and constitutes a hinge, the second plane of the swing freedom formed by the hinge is vertical to the first plane of the swing of the large arm 202, and the movement is used for realizing the functions of feeding and retracting during the felling process. The third power mechanism specifically comprises a rotating shaft and a steering engine 303 which are connected; the rotating shaft penetrates through the rotating shaft installation groove and the small arm 302 installation groove, and the small arm 302 is fixedly connected with the hinged point of the small arm base 301 and the small arm 302.

An actuator for performing the chopping action is fixed to the end of the small arm 302, and a power saw 400 or a chain saw can be generally adopted, and the embodiment specifically adopts an 80V powerful lithium battery charging chain saw. The guide plate is convenient to use and can saw trees more quickly. The starting mode and the fixing mode of the electric saw 400 are modified through a conventional electric appliance modification mode, the starting mode is changed from manual starting of an original machine to remote control mode starting, and the fixing mode is changed from original handheld mode to fast-assembly type fixing mode. The specific technical parameters for using the electric saw 400 are as follows:

a brushless motor, an 80V lithium battery,

charging time: 40 minutes;

the charging and discharging times are 1000 times;

the maximum power is 2 kw;

chain speed: 11 m/s;

length of the guide plate: 18 inches;

chain pitch: 3/8 cun;

the number of chain sections: 62, a first step of mixing;

thickness of the middle guide teeth: 0.050;

oil tank capacity: 200 ml;

overall weight (containing 5AH cell): 7.5 kg;

the monitoring module is used for realizing real-time close-range image monitoring of the field tree felling process at a far end and is more convenient to operate, and specifically comprises a wireless image transmission module and a rotary camera 501 which are connected with each other, and a display screen positioned at the far end. As shown in fig. 1, the rotary camera 501 is mounted above the steering engine 303, and a rotation plane of the rotary camera is parallel to a plane where the large arm 202 is located, so that an observation angle can be switched; the wireless image transmission module is connected with the display screen through a wireless communication technology, the equipment related to the module can directly adopt the existing remote monitoring related equipment, if the image transmission adopts the mature 5.8G wireless image transmission in the prior art, the transmission distance can reach 800-2000 meters, and the requirement of the on-site tree cutting distance is completely met.

In terms of a control system, a basic circuit module of the control system is shown in fig. 10, and the control system comprises a local control system taking a local controller as a core and a remote control system taking a remote controller as a core, wherein the local controller can adopt a single chip microcomputer or an industrial P L C to control the execution of specific instructions, the power supply and the receiving and sending of communication instructions of local mechanisms, the remote controller adopts a Usart HMI serial port screen to execute the functions of specific parameter setting, instruction downloading, monitoring operation and the like, and as shown in fig. 11 to 14, a UI operation interface based on the Usart HMI serial port screen specifically designed in the embodiment is shown.

The first power mechanism, the second power mechanism, the third power mechanism, the rotary camera 501 and the executing mechanism which need to be electrically controlled are respectively connected with a local controller, and the local controller is wirelessly connected with a remote controller through a wireless signal transmission module. The local control system including power supply and other devices are arranged in the electric cabinet 600 hung on the large arm 202.

In this embodiment, the wireless signal transmission module adopts a 2.4G wireless module, which can avoid interference of high voltage and low frequency, and the transmission distance can reach 800-1500 m.

The power module of the embodiment is integrally designed into a three-part power supply configuration, and one part of the power module is used for independently supplying power to the electric saw 400 through an 80V 5AH high-capacity lithium battery; the second part is a 24V local host power supply, and the capacity is 10.8AH polymer 6 series battery pack for supplying power; the third part is a power module of a far-end 12V control end. The method comprises the following specific steps:

(1) electric saw 400 battery: 80V 5AH high-capacity lithium battery.

(2) An electric cabinet 600: inside 24V 10.8AH polymer 6 cluster battery group of adopting, divide 4 way outputs, wherein 3 way 24V supplies power for step motor, 1 way 24V connects the step reducer 24V and falls 12V module in addition, the 12V power of output divides 2 way outputs, 1 way 12V is camera and wireless picture transmission module, 2 little fan power supplies of 12V, 1 way connects 12V to fall 5V power supplies in addition, the 5V circuit of output provides the power supply for the main control board module of local controller, the main control board is simultaneously to 2 relays and 1 steering wheel 303, 1 wireless transmission module, carry out 5V power supply operation.

(3) The far-end control end power supply module: the power supply is divided into 2 parts, wherein the display screen part is an independent power supply 12V 850 mAH; secondly, control panel power module: A12V 8000mAH power supply is directly connected with a power switch by 1 path, the power switch outputs 12V voltage to the voltage reducer to reduce 5V voltage, and the output 5V voltage directly supplies power for the control screen and the wireless module.

Meanwhile, in order to monitor the inclination angle of the guide plate of the electric saw 400 and accurately control the opening of the trunk 700, the inclination angle sensor is fixedly mounted on the guide plate of the electric saw 400, and transmits the inclination angle of the guide plate to a remote monitor in real time through a local controller, so that an operator can more accurately read the inclination angle of the guide plate and control the inclination angle.

In order to facilitate field carrying, each main component of the device is generally split into 3 parts in the using process, each part is smaller than 12kg, and the device can be carried by a single person. The various components can be quickly assembled prior to use.

In the using process, firstly, a working responsible person arrives at the site, and the tree falling range and the felling operation surface are selected according to the specific conditions of the distance between the trees on the site and a live line, a building and the like. The arc-shaped clamp 101 is then mounted on the felling surface trunk 700, the clamp is secured to the trunk 700 with the flexible hoop 102, and tightened. And then the rotating and moving assembly (the small arm 302 and the large arm 202 are integrated) is installed on the arc-shaped clamp 101, and the bolt is locked. The electric saw 400 (without battery) is then mounted on the small arm 302, locking the bolt. And connecting and fastening each power line and each control line according to different color codes. The chain guard of the electric saw 400 is removed. The electric saw 400 battery is installed. Checking whether the installation conditions of all mechanical parts are normal; check if all connections are error free. And then logging operation can be carried out.

The steps of the felling process are generally as follows:

(1) and turning on a main power supply on the main case.

(2) And clicking a button for checking the wireless connection state on the control screen to test whether the wireless connection is normal.

(3) Clicking the 'one-key zero' button of the control screen resets the initial angle of the control large arm 202, the initial position of the electric saw 400 and the pitch angle of the electric saw 400 to zero.

(4) The pitch angle of the electric saw 400 is raised to make the guide plate of the electric saw 400 perpendicular to the tree, and then the electric saw 400 is moved to the edge of the trunk 700.

(5) Starting the electric saw 400, setting the progress of the electric saw 400 after the electric saw is normal, setting the step amount to be 10mm initially, and setting 50mm and 100mm … … to be increased step by step after observing that each part is not abnormal until the depth is about 1/4-1/3 of the diameter of the trunk 700, and enabling the position of the electric saw 400 to return to zero.

(6) The angle of the large arm 202 is controlled to be increased by about 30-45 degrees, the electric saw 400 is moved to cut the trunk 700 into a lower triangular opening.

(7) The "one-click" button resets the control boom 202 initial angle, the saw 400 initial position, and the saw 400 pitch angle to zero.

(8) And controlling the electric saw 400 to cut down horizontally on the other side of the opening of the trunk 700 to finish the cutting of the tree.

By way of summary, the procedure for performing the felling operation by the apparatus of the present embodiment can be summarized as the following general method steps:

step S1: fixing the fixing mechanism on the felling operation surface of the trunk 700;

step S2: fastening the large arm base 201 on the fixing mechanism through bolts;

step S3: the electric saw 400 is fastened at the end of the small arm 302 through a bolt;

step S4: connecting a power line and a control line; removing the chain guard of the electric saw 400 and installing the battery;

step S5: turning on a main power supply, and resetting the initial angle of the large arm 202, the initial position of the electric saw 400 and the pitch angle of the electric saw 400;

step S6: raising the pitch angle of the electric saw 400 to enable the guide plate of the electric saw 400 to be vertical to the tree, and then moving the electric saw 400 to the edge of the trunk 700;

step S7: setting the stepping amount of the electric saw 400 to cut into 1/4-1/3 of the diameter of the trunk 700;

step S8: adjusting the angle of the big arm 202 to be 30-45 degrees, and obliquely cutting to make the trunk 700 open a lower triangular opening; the bevel edge of the wedge-shaped wood block of the cut lower triangular opening faces downwards, and the wedge-shaped wood block automatically separates under the driving of the electric saw 400 chain and the self gravity of the wood block to form a lower triangular opening;

step S9: after the initial angle of the large arm 202, the initial position of the electric saw 400 and the pitch angle of the electric saw 400 are reset, the guide plate of the electric saw 400 is perpendicular to the tree, and the electric saw 400 is moved to the edge of the trunk 700 on the other side;

step S10: the power saw 400 is controlled to cut horizontally into the trunk 700.

The above-described preferred embodiments are not intended to be limiting, and other forms of remotely powered tree felling robot and methods of use may be devised by those skilled in the art without departing from the scope of the invention.