Pruning equipment with novel saw rope

Abstract

The utility model provides pruning equipment with a novel saw rope. The pruning equipment comprises a shell and an internal supporting frame arranged in the shell. Two winding wheel assemblies are fixed to the inner supporting frame, and a tensioning wheel assembly is arranged above each winding wheel assembly. A first electric control unit, a second electric control unit, a driving motor, a battery and a tensioning control switch are further fixed to the inner supporting frame. An outer cover is arranged at the side end of the shell; a top cover is arranged at the top of the shell; the top of the tensioning wheel assembly extends out of an opening in the upper portion of the shell. The output end of the driving motor is connected with the reel assembly and drives the reel assembly to rotate; the two ends of the rope saw are wound on the two winding wheel assemblies, and the rope saw is wound on the two tensioning wheel assemblies. The device has the advantages that the device is good in portability, and the device is small in size, small in mass and convenient to carry according to the field operation environment of hills and mountains. The device has good efficient and convenient performance, the portable device can rapidly conduct pruning operation, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model specifically relates to a pruning device with a novel saw rope. Background Art

[0002] Tree pruning is the main measure to protect power lines and forest tending. Reasonable pruning can promote the growth of trees, improve the straightness, bending strength and toughness of trees, and enhance upper photosynthesis, which has a very positive significance for the growth and maturity of trees. Traditional pruning tools include hand saws and machetes, which are relatively backward, with problems such as poor pruning quality, high labor intensity, and pruning height that does not meet requirements. my country has a large forest tending area, a large amount of pruning operations, and poor pruning tools. Especially in high-altitude pruning operations, there is a lack of suitable tree pruning equipment.

[0003] In order to solve the problem of power line accidents caused by trees, it is usually necessary to trim or cut down these trees, which is called tree barrier clearing. For 220kV transmission lines, the distance between trees and lines must be greater than 4.5 meters. Since cutting down a whole tree is likely to cause economic disputes, tree branches are often trimmed. Traditional tree barrier clearing is mainly done by manual hand-held knives, hand saws or oil saws, climbing trees, riding boom trucks, or using extension poles. However, manual tree barrier clearing has problems such as low work efficiency, high labor intensity, and the risk of people falling from heights and electric shock. An effective measure to solve the above problems is to use mechanical pruning instead of manual pruning. Mechanical pruning can not only improve work efficiency, reduce labor intensity and the risk of casualties, but also reduce labor costs, and greatly improve the safety and reliability of power supply. Utility Model Content

[0004] The utility model aims to provide a pruning device with a novel saw rope in view of the deficiencies in the prior art. The pruning device with the novel saw rope can well solve the above problems.

[0005] In order to meet the above requirements, the technical solution adopted by the utility model is: to provide a pruning device with a new type of saw rope, the pruning device with the new type of saw rope includes an outer shell and an internal support frame arranged inside the outer shell; two winding wheel assemblies are fixed on the internal support frame, and a group of tensioning wheel assemblies are provided above each of the winding wheel assemblies; the first electronic control unit, the second electronic control unit, the driving motor, the battery and the tensioning control switch are also fixed on the internal support frame; an outer cover is provided at the side end of the outer shell, and a top cover is provided at the top of the outer shell; the top of the tensioning wheel assembly extends out from the opening above the outer shell; the output end of the driving motor is connected to the winding wheel assembly and drives the winding wheel assembly to rotate; and it also includes a rope saw with two ends wound around the two winding wheel assemblies and wrapped around the two tensioning wheel assemblies.

[0006] The pruning equipment with the new saw rope has the following advantages:

[0007] (1) It has good portability. For the field operation environment of hilly mountain teams, the equipment needs to be small in size and light in weight for easy carrying.

[0008] (2) It has good high-efficiency and convenience performance. The portable equipment can perform pruning operations quickly, reducing the labor intensity.

[0009] (3) It has strong flexibility. The equipment is designed compactly and is suitable for pruning operations in different terrains and environments.

[0010] (4) It has high safety, reducing the risk of workers working at heights and improving work safety.

[0011] (5) The operation at the end is simple, reducing the cost and operation difficulty of the end execution, and adopting a simple manual-automatic docking mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The same reference numerals are used to represent the same or similar parts in these drawings. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0013] Figure 1 Schematically shows a schematic structural diagram of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0014] Figure 2 Schematically shows a schematic internal structural diagram of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0015] Figure 3 Schematically shows a schematic structural diagram of a tension pulley assembly of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0016] Figure 4 Schematically shows a schematic structural diagram of a tension pulley assembly of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0017] Figure 5 Schematically shows a schematic front structural diagram of an internal support frame of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0018] Figure 6 Schematically shows a schematic back structural diagram of an internal support frame of a pruning equipment with a new saw rope according to an embodiment of the present application.

[0019] Figure 7Schematically shows a schematic diagram of the relationship between the wire winding wheel assembly, the tensioning wheel assembly and the wire saw of a pruning device with a new type of saw wire according to an embodiment of the present application.

[0020] Wherein: 1. Top cover; 2. Handle; 3. Support rod; 4. Support rod seat; 5. Outer shell; 6. Tensioning wheel assembly; 7. Outer cover; 8. Outer cover locking device; 9. First electronic control unit; 10. Second electronic control unit; 11. Driving motor; 12. Inner support frame; 13. Battery; 14. Tensioning control switch; 15. Wire winding wheel assembly; 16. Wire saw; 17. Main pulley; 18. Fixed shaft; 19. Rocker arm; 20. Small pulley. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the following description, references to "an embodiment", "embodiment", "an example", "example", etc. indicate that the embodiment or example so described may include a specific feature, structure, characteristic, property, element or limit, but not every embodiment or example necessarily includes the specific feature, structure, characteristic, property, element or limit. Additionally, repeated use of the phrase "according to an embodiment of the present application" although possibly referring to the same embodiment, does not necessarily refer to the same embodiment.

[0023] For simplicity, some technical features known to those skilled in the art are omitted in the following description.

[0024] According to an embodiment of the present application, there is provided a pruning device with a new type of saw wire, as Figures 1-6 shown, including an outer shell 5 and an inner support frame 12 disposed inside the outer shell 5; two wire winding wheel assemblies 15 are fixed on the inner support frame 12, and a set of tensioning wheel assemblies 6 are disposed above each of the wire winding wheel assemblies 15; a first electronic control unit 9, a second electronic control unit 10, a driving motor 11, a battery 13 and a tensioning control switch 14 are also fixed on the support 12; an outer cover 7 is provided at the side end of the outer shell 7, and a top cover 1 is provided at the top of the outer shell 7; the top of the tensioning wheel assembly 6 extends out from the opening above the outer shell 5; the output end of the driving motor 11 is connected to the wire winding wheel assembly 15 and drives the wire winding wheel assembly 15 to rotate;

[0025] According to an embodiment of the present application, the pruning device with a new type of saw wire further includes a wire saw whose two ends are wound around the two wire winding wheel assemblies 15 and are wound around the two tensioning wheel assemblies 6.

[0026] According to an embodiment of the present application, a handle 2 is provided on the top cover 1 of the pruning device with a new type of saw wire.

[0027] According to an embodiment of the present application, two sets of support rod brackets 4 are respectively fixed on both side end faces outside the housing 5 of the pruning device with the new type of saw rope. A vertically arranged support rod 3 is inserted into each set of the support rod brackets 4.

[0028] According to an embodiment of the present application, the battery 14 of the pruning device with the new type of saw rope is electrically connected to the first electronic control unit 9, the second electronic control unit 10, the drive motor 11 and the tension control switch 14.

[0029] According to an embodiment of the present application, the tensioning wheel assembly 6 of the pruning device with the new type of saw rope includes a main pulley fixed on the inner support frame 12 through a bearing assembly. The fixed shaft of the main pulley is hinge-connected to two small pulleys through a rocker arm, and the rocker arm is also connected to the inner support frame 12 through a spring.

[0030] According to an embodiment of the present application, the pruning device with the new type of saw rope can precisely prune branches through the coordinated movement of the rope saw and the pull wire. The following details how the rope saw bypasses the branch, connects the pull wire and the wire winding wheel assembly, and how to achieve the operation principles of tensioning and cutting through the movement of the wire winding wheel assembly. When pruning a branch, the rope saw needs to bypass the target branch through the telescopic rod so as to perform cutting at an appropriate position. The specific steps are as follows:

[0031] Bypassing the branch: The operator bypasses one end of the rope saw around the branch to be pruned through the telescopic rod auxiliary tool, so that both ends of the rope saw are respectively on both sides of the branch.

[0032] Position adjustment: Ensure that the rope saw is in an appropriate position on the branch and both ends are evenly distributed to ensure uniform force during subsequent cutting and avoid deviation.

[0033] Both ends of the rope saw are respectively connected to the left pull wire and the right pull wire. This design facilitates controlling the tensioning and cutting of the rope saw through the movement of the pull wire.

[0034] Left end connection: One end of the rope saw is connected to the left pull wire, usually fixed through a strong buckle or hook to ensure a firm connection.

[0035] Right end connection: The other end of the rope saw is connected to the right pull wire, also connected through a safe fixing device to ensure that it will not fall off during the pruning process.

[0036] Design and Function of the Reel Assembly: The reel assembly is an important part of the rope saw pruning device and is responsible for controlling the tension and movement of the pulling wire. The reel assembly is usually divided into a left reel assembly and a right reel assembly, each responsible for controlling the corresponding pulling wire. Left Reel Assembly: Located on the left side of the device, it is used to wind and unwind the left pulling wire. By rotating counterclockwise or clockwise, it controls the tightness of the left pulling wire. Right Reel Assembly: Located on the right side of the device, it is used to wind and unwind the right pulling wire. It can adjust the state of the right pulling wire by rotating counterclockwise or clockwise. Left Pulling Wire Connection: The other end of the left pulling wire is wound around the left reel assembly, and its length and tension are controlled by the rotation of the reel assembly. Right Pulling Wire Connection: The other end of the right pulling wire is wound around the right reel assembly, and the movement of the reel assembly can adjust the tightness of the right pulling wire.

[0037] Tensioning and Cutting Operations of the Rope Saw: To ensure that the rope saw can cut stably and effectively during pruning, the rope saw needs to be tensioned through the movement of the reel. Opposite Rotation of the Reels: When the rope saw needs to be tensioned, the left reel and the right reel rotate in opposite directions. The specific operation is as follows: Counterclockwise Rotation of the Left Reel: The left reel rotates counterclockwise to tighten the left pulling wire. Clockwise Rotation of the Right Reel: The right reel rotates clockwise to tighten the right pulling wire. Rope Saw Tensioning: Since the pulling wires on both sides are tightened simultaneously, the rope saw forms a cutting ring with uniform force around the tree branch, improving the precision and efficiency of pruning. After the rope saw is tensioned, the cutting of the rope saw can be controlled by adjusting the rotation direction of the reel. Same Direction Rotation of the Reels: When the cutting operation needs to be performed, the left reel and the right reel rotate in the same direction. The specific operation is as follows: Synchronous Rotation: The left reel and the right reel rotate clockwise or counterclockwise simultaneously to tighten or loosen the pulling wires on both sides. Driven by the reels, the rope saw cuts along the tree branch to complete the pruning task.

[0038] According to an embodiment of the present application, the reel of the pruning device with a new type of saw rope is used to control the storage, tensioning, and release of the pulling wire, and is the most important function - executing component in the entire pruning device. Material Selection for the Left and Right Reels: High - strength plastic or lightweight alloy is selected for manufacturing to reduce the weight and inertia of the reel, improving the operation flexibility. The tail of the reel is the bearing installation shaft position and the coupling connection shaft position. The double - bearing fixing method can ensure the stability and durability of the reel during long - term high - speed rotation. A penetrating slot is opened on one side of the reel for the winding in and out of the pulling wire. The center of the reel is in a hollow blind - hole state, and a strong permanent magnet is arranged inside to adsorb and fix the heavy iron block at the end of the pulling wire.

[0039] According to an embodiment of the present application, the tension pulley assembly of the pruning device with a new saw rope is mainly composed of three grooved pulleys. The main pulley is connected to the fixed seat through a bearing, and two small pulleys are hinged to the fixed shaft of the main pulley through a rocker arm. The other end of the rocker arm is elastically controlled on the vertical plate of the bracket through a tension spring. During operation, when the pulling wire is tensioned during sawing a branch, it will press the small pulley, causing the rocker arm to rotate around the fixed shaft of the main pulley, thereby pulling the tension spring to control the tension of the pulling wire, avoiding overload of the motor due to excessive tension, and thus protecting the service life of the motor and the drive system.

[0040] According to an embodiment of the present application, during the downward pull of the saw rope of the pruning device with a new saw rope, the branch will lower downward. Since the two wheels on both sides are convenient to control and have the same rotational speed, it will cause the stretching and tension on the downward pull side, while the pulling wire on the upward side will be slack, resulting in a reduction in the efficiency of the wire sawing. In order to improve the sawing efficiency, when the branch is descending, the rotational speed of the wire winding wheel on the upward side needs to be reduced or it does not rotate, and the entire pulling wire is tightened by the rotation of the wire winding wheel on the downward side. When the pulling wire is slack, the tension pulley will rotate an angle. A trigger structure can be installed on the tension pulley assembly to trigger a microswitch, so that after the wire is slack. The microswitch is triggered, and the system controls the motor on the slack side to stop or reduce the rotational speed, allowing the wire winding wheel of the motor on the tension side to continue rotating, thereby tightening the entire cutting wire and achieving the purpose of improving the sawing efficiency.

[0041] According to an embodiment of the present application, the internal support frame of the pruning device with a new saw rope is where the core frame of the entire machine is located. Its structural space size determines the compactness of the whole machine. The main support base plate is fixed with a vertical plate of the bracket and a motor mounting seat. The main vertical plate of the bracket is fixed with a bearing mounting seat, a rocker arm mounting seat, and a mechanical limit for the rocker arm, etc. At the same time, threaded holes for installing the outer shell sheet metal are arranged, and a suspended battery mounting bracket, an electronic control unit mounting plate, etc. are also fixed on the base plate and the vertical plate.

[0042] According to an embodiment of the present application, when using the pruning device with a new saw rope, a pole can be used to lift the wire saw to the branch to be pruned. Before starting to wind the wire, ensure that the pulling wire has been correctly wound into the slot holes of the wire winding disc. Start the wire winding disc to gradually wind the pulling wire tightly, and observe the process and effect of winding the wire. The wire winding disc can wind the pulling wire tightly smoothly, avoiding the problems of wire slack and entanglement. Operate the wire winding disc to simultaneously tension the left and right pulling wires to ensure that the wire saw forms a tight cutting ring around the branch. Observe the force condition of the wire saw during the tensioning process to ensure that its force on the branch is uniform, avoiding deviation and sliding. As Figures 5-7 shown. After tensioning, start the preliminary trial cut. It was found during the test that the new wire saw reduces the number of steel wires, and a new saw rope is wound around the stainless steel wire, increasing the tensile strength and durability. The improved wire saw performs excellently in the actual test, reducing the problems of slot jamming and falling off during the sawing process.

[0043] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the claims described above.

Claims

1. A pruning device with a new type of saw rope, characterized in that: It includes a housing and an internal support frame disposed inside the housing; Two wire winding wheel assemblies are fixed on the internal support frame, and a set of tension wheel assemblies are provided above each of the wire winding wheel assemblies; The internal support frame is also fixed with a first electronic control unit, a second electronic control unit, a drive motor, a battery and a tension control switch; An outer cover is provided on the side end of the housing, and a top cover is provided on the top of the housing; The top of the tension wheel assembly extends out from the opening above the housing; The output end of the drive motor is connected to the wire winding wheel assembly and drives the wire winding wheel assembly to rotate; It also includes a wire saw with both ends wound around the two wire winding wheel assemblies and surrounding the two tension wheel assemblies.

2. The pruning device with a new type of saw rope according to claim 1, characterized in that: A handle is provided on the top cover.

3. The pruning device with a new type of saw rope according to claim 1, characterized in that: Two sets of support rod brackets are respectively fixed on the two side end faces outside the housing, and a vertically arranged support rod is inserted in each set of support rod brackets.

4. The pruning device with a new saw rope according to claim 1, characterized in that: The battery is electrically connected to the first electronic control unit, the second electronic control unit, the drive motor and the tension control switch.

5. The pruning device with a new type of saw rope according to claim 1, characterized in that: The tension wheel assembly includes a main pulley fixed on the internal support frame through a bearing assembly. The fixed shaft of the main pulley is hinged to two small pulleys through a rocker arm, and the rocker arm is also connected to the internal support frame through a spring.

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