Branch pruning device

Abstract

The invention discloses a branch pruning device, which relates to the technical field of branch pruning and comprises a rack, a climbing mechanism, a rotary cutter mechanism and a transmission mechanism, the climbing mechanism and the rotary cutter mechanism are arranged on the rack, the climbing mechanism drives the rotary cutter mechanism to rotate at the upper end of the rack through the transmission mechanism to cut branches of a tree trunk, and the branch pruning efficiency is effectively improved; and the climbing mechanism and the rotary cutter mechanism are controlled to work at the same time through a single driving motor, and the effects of saving energy and improving efficiency can be effectively achieved. Meanwhile, by arranging a spring and arranging a screw tube on a connecting rod, the included angle between a mounting frame used for mounting the driving wheel and the driven wheel and the connecting rod is adjusted by rotating the screw tube, so that the clamping radius of the driving wheel and the clamping wheel is adjusted, and the tree trunks with different diameters can be adapted conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of tree branch pruning, and in particular to a tree branch pruning device. Background Art

[0002] Tree shaping is mainly carried out by pruning the branches of trees to make them grow into a specific shape. Tree shaping focuses on young trees and newly planted trees, while tree pruning runs through the entire process of tree growth; timely pruning of trees in the growing period can not only reduce the blocking of sunlight by aging branches, but also improve air flow between trees, enhance photosynthesis of trees, and increase the yield of trees. In addition, for trees used for home furnishings, it can improve their straightness and reduce knots, thereby obtaining better quality home furnishings raw materials.

[0003] For hundreds or thousands of trees in a garden, it usually takes multiple people to perform traditional tree pruning, which is not only time-consuming and labor-intensive, but also has low maintenance efficiency. In addition, using multiple people to prune trees at the same time is prone to casualties, because the pruning workers need to climb to trees over 8 meters or even 15 meters high to work, which is a high-risk aerial operation. In the face of these problems, the automatic tree-climbing pruning device is currently replacing manual pruning work as the future development direction.

[0004] For example, a high-altitude intelligent pruning device for trees with publication number CN221812721U includes four arc plates, all of which are arc-shaped, and the four arc plates are surrounded by a circle to form a circular frame. Folding mechanisms are installed at the intervals between the four arc plates to adjust the diameter of the circular frame. Through grooves are opened on the upper and lower parts of the outside of the four arc plates, the upper part is horizontal and the lower part is inclined upward, and guide frames are installed on the rear sides of the multiple through grooves, and reciprocating wheel frames are installed inside the multiple through grooves. The multiple wheel frames are all U-shaped, and wheels are rotatably installed inside them.

[0005] The above-mentioned pruning device is surrounded by four arc plates to form a circle, and a folding mechanism is installed between each of the four arc plates. By adjusting the opening angle of the folding mechanism, the four arc plates can be made into circles of different sizes to be suitable for trees of different diameters. However, the above-mentioned pruning device is rotatably installed with cutting blades on the inner sides of the outer sides of the four rotating frames, each cutting blade is controlled by a motor, and a motor is provided on each wheel frame, so that the above-mentioned pruning device requires at least eight motors to make it work normally. Therefore, the present application proposes an energy-saving and efficiency-enhancing branch pruning device. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the above-mentioned technology and to propose a branch pruning device, which aims to solve the problem that each cutting blade of the above-mentioned pruning device is controlled by a motor and each wheel frame is provided with a motor, so that the above-mentioned pruning device requires at least eight motors to make it work normally.

[0007] The present invention provides a branch pruning device, comprising:

[0008] A frame, which is put on the tree trunk by opening and closing;

[0009] The climbing mechanism is arranged on both sides of the lower end of the frame so that the climbing mechanism and the tree trunk can be in rolling contact;

[0010] A rotary cutter mechanism is rotatably arranged on the upper part of the frame;

[0011] The transmission mechanism is arranged on the frame, one end of which is transmission-connected to the climbing mechanism, and the other end of which is transmission-connected to the rotary cutter mechanism, so that when the climbing mechanism clamps the tree trunk and climbs on it, the transmission mechanism drives the rotary cutter mechanism to rotate and cut the branches on the tree trunk.

[0012] Preferably, the frame includes an upper holding ring and a lower holding ring which are opened and closed, and the upper holding ring is connected to the lower holding ring through a connecting rod; and the climbing mechanism is arranged on the lower holding ring.

[0013] The climbing mechanism includes a driving motor, a driving wheel and a clamping wheel. Mounting frames are provided on both sides of the lower holding ring. The driving motor and the driving wheel are arranged on one of the mounting frames, and the clamping wheel is rotatably arranged on the other mounting frame. The output end of the driving motor is connected to the driving wheel through a coupling or a reducer.

[0014] The rotary cutter mechanism comprises a circular cutter 1 and a circular cutter 2, which are semicircular ring structures and are rotatably arranged on the upper holding ring; arc gears are arranged on the lower outer rings of the circular cutter 1 and the circular cutter 2, and the arc gears are meshed with the transmission mechanism for transmission.

[0015] The transmission mechanism includes a transmission bevel gear, a transmission gear and a transmission shaft. The transmission shaft is rotatably arranged on both sides of the upper holding ring, the transmission bevel gear is connected to the lower end of the transmission shaft, and the transmission gear is connected to the upper end of the transmission shaft; the two driving wheels are rotatably connected to the mounting frame through a rotating shaft, and the two clamping wheels are rotatably connected to the mounting frame through a rotating shaft; an active bevel gear is arranged on the rotating shaft, and the active bevel gear is meshed with the transmission bevel gear for transmission.

[0016] Preferably, a spring is further included, the mounting frame is hinged to the two sides of the lower holding ring, one end of the spring is fixedly connected to the side of the mounting frame, the other end of the spring is fixedly connected to a sliding sleeve, and the sliding sleeve is sleeved on the connecting rod. A screw tube is rotatably provided on the sliding sleeve, and the connecting rod is provided with an external thread, and the screw tube is threadedly connected to the connecting rod through the external thread.

[0017] The transmission shaft includes transmission shaft one and transmission shaft two. Transmission shaft one is rotatably arranged on the side of the upper holding ring, transmission shaft two is rotatably arranged on the rotating shaft through a bracket, and transmission shaft one is connected to transmission shaft two through a universal joint; the transmission gear is connected to transmission shaft one, and the transmission bevel gear is connected to transmission shaft two.

[0018] The second transmission shaft is a tubular structure, a rectangular rod is slidably arranged on the second transmission shaft, and a transmission bevel gear is arranged at the end of the rectangular rod; one side of the bracket is rotatably connected with the rotating shaft.

[0019] Preferably, an annular groove is provided in the upper holding ring, and the circular cutting knife 1 and the circular cutting knife 2 are rotatably located in the annular groove. An annular limiting groove is also provided in the upper holding ring, and the annular limiting groove is horizontally connected with the annular groove. The arc-shaped rack is rotatably located in the annular limiting groove. Arc-shaped through holes are provided on both sides of the annular limiting groove, and one side of the transmission gear is rotatably located in the arc-shaped through hole to mesh with the arc-shaped rack for transmission.

[0020] Compared with the prior art, it has the following beneficial effects:

[0021] 1. The present application arranges a climbing mechanism and a rotating cutter mechanism on a frame, and relies on a transmission mechanism to enable the climbing mechanism to drive the rotating cutter mechanism to rotate at the upper end of the frame to cut the branches of the tree trunk, thereby effectively improving the efficiency of pruning branches. The present application controls the climbing mechanism and the rotating cutter mechanism to work simultaneously through a single drive motor, which can effectively save energy and increase efficiency.

[0022] 2. The present application sets a spring and a screw on the connecting rod, so that the angle between the mounting frame for mounting the driving wheel and the driven wheel and the connecting rod can be adjusted by rotating the screw, so as to adjust the clamping radius of the driving wheel and the clamping wheel, so as to adapt to tree trunks of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of a branch pruning device according to the present invention Figure 1 ;

[0025] Figure 2 A schematic diagram of a branch pruning device according to the present invention Figure 2 ;

[0026] Figure 3 is a schematic diagram of a rack of the present invention;

[0027] Figure 4 is a schematic diagram of a rotary cutter mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of another embodiment of the present invention;

[0029] Figure 6 A cross-sectional view of the branch pruning device of the present invention Figure 1 ;

[0030] Figure 7 A cross-sectional view of the branch pruning device of the present invention Figure 2 ;

[0031] Figure 8 for Figure 7 A magnified schematic diagram of the middle part;

[0032] Fig. 9 FIG. 2 is a schematic diagram of another embodiment of the transmission mechanism of the present invention.

[0033] In the figure, 1-frame; 11-upper holding ring; 12-lower holding ring; 13-connecting rod; 111-annular groove; 112-annular limiting groove; 113-arc-shaped through hole;

[0034] 2-climbing mechanism; 21-driving motor; 22-driving wheel; 23-clamping wheel; 24-mounting frame; 25-rotating shaft;

[0035] 3-rotating cutter mechanism; 31-circular cutter 1; 32-circular cutter 2; 33-arc gear;

[0036] 4-transmission mechanism; 41-transmission bevel gear; 42-transmission gear; 43-transmission shaft; 431-transmission shaft 1; 432-transmission shaft 2; 433-universal joint; 434-rectangular rod; 44-active bevel gear; 45-bracket;

[0037] 5-spring; 6-sleeve; 7-screw. DETAILED DESCRIPTION

[0038] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:

[0039] Embodiment 1:

[0040] like Figures 1 to 4 As shown, the present invention provides a branch pruning device, comprising:

[0041] A frame 1, which is put on the tree trunk by opening and closing;

[0042] The climbing mechanism 2 is arranged on both sides of the lower end of the frame 1, so that the climbing mechanism 2 and the tree trunk are in rolling contact, and the climbing mechanism 2 is relied on to climb vertically on the tree trunk;

[0043] A rotary cutter mechanism 3 is rotatably arranged on the upper part of the frame 1 to cut branches on the tree trunk;

[0044] The transmission mechanism 4 is arranged on the frame 1, one end of which is transmission-connected to the climbing mechanism 2, and the other end of which is transmission-connected to the rotary cutter mechanism 3, so that when the climbing mechanism 2 clamps the tree trunk and climbs on it, the transmission mechanism 4 drives the rotary cutter mechanism 3 to rotate and perform rotational cutting on the branches on the tree trunk.

[0045] See also Figure 3 The frame 1 of the present application includes an upper holding ring 11 and a lower holding ring 12 that are opened and closed, and the upper holding ring 11 is connected to the lower holding ring 12 through a connecting rod 13; the upper holding ring 11 and the lower holding ring 12 each include two semicircular rings with two ends hinged to each other, and the two semicircular rings on the lower holding ring 12 are closed and locked by locking bolts; further, the two ends of the upper holding ring 11 can also be closed and locked by locking bolts. The climbing mechanism 2 is arranged on the lower holding ring 12, and the climbing mechanism 2 enables the rotary cutter mechanism 3 to cut branches by clamping with the trunk.

[0046] See also Figure 1 The climbing mechanism 2 of the present application includes a driving motor 21, a driving wheel 22 and a clamping wheel 23. Mounting frames 24 are provided on both sides of the lower holding ring 12. The driving motor 21 and the driving wheel 22 are provided on one of the mounting frames 24. The clamping wheel 23 is rotatably provided on the other mounting frame 24. The output end of the driving motor 21 is connected to the driving wheel 22 through a coupling or a reducer to drive the driving wheel 22 to climb on the tree trunk. Furthermore, the power supply of the driving motor 21 is connected to an external power supply through a wire; at the same time, the driving motor 21 can also be replaced by a fuel engine.

[0047] See also Figure 4The rotary cutter mechanism 3 of the present application includes a circular cutter 1 31 and a circular cutter 2 32, which are semicircular ring structures, and the circular cutter 1 31 and the circular cutter 2 32 are rotatably arranged on the upper holding ring 11; the lower outer rings of the circular cutter 1 31 and the circular cutter 2 32 are provided with arc gears 33, and the arc gears 33 are meshed with the transmission mechanism 4 for transmission; the circular cutter 1 31 and the circular cutter 2 32 are combined to form an annular cutter; the circular cutter 1 31 and the circular cutter 2 32 are provided with arc gears 33. There is a spiral blade, and the spiral blade is a structure with one end low and the other end high, so that the spiral blade of the ring structure composed of the ring cutting knife 1 31 and the ring cutting knife 2 32 can prune the branches on the tree trunk; by relying on the transmission mechanism 4 and the design that the spiral blade is low at one end and high at the other end, the ring cutting knife 1 31 and the ring cutting knife 2 32 are rotated during the climbing process to cut the branches; further, the ring cutting knife 1 31 and the ring cutting knife 2 32 of the present application can be a sawtooth structure. The present application sets the ring cutting knife 1 31 and the ring cutting knife 2 32 of the semicircular structure to match the upper holding ring 11 and the lower holding ring 12 that can be opened and closed, so as to open and cover the tree trunk for operation.

[0048] See also Figure 2 and Figure 4 The transmission mechanism 4 of the present application includes a transmission bevel gear 41, a transmission gear 42 and a transmission shaft 43. The transmission shaft 43 is rotatably arranged on both sides of the upper holding ring 11. The transmission bevel gear 41 is connected to the lower end of the transmission shaft 43, and the transmission gear 42 is connected to the upper end of the transmission shaft 43; the two driving wheels 22 are rotatably connected to the mounting frame 24 through the rotating shaft 25, and the two clamping wheels 23 are rotatably connected to the mounting frame 24 through the rotating shaft 25; an active bevel gear 44 is arranged on the rotating shaft 25, and the active bevel gear 44 is meshed with the transmission bevel gear 41 for transmission, so that when the driving wheel 22 rotates, the rotating shaft 25 drives the active bevel gear 44 to rotate, thereby rotating the transmission bevel gear 41 meshed with the active bevel gear 44, and the transmission bevel gear 41 rotates to drive the transmission shaft 43 to rotate, so that the transmission gear 42 drives the arc rack to rotate to drive the ring cutter 1 31 and the ring cutter 2 32 to rotate and cut branches.

[0049] Specifically, the present application can adopt a dual transmission mechanism 4 setting or a single transmission mechanism 4 setting. When the dual transmission mechanism 4 is set, the rotating shaft 25 on the driving wheel 22 and the clamping wheel 23 is meshed with the driven bevel gear through the active bevel gear 44. Through the setting of the dual transmission mechanism 4, the driving wheel 22 and the clamping wheel 23 can rotate synchronously; when a single transmission mechanism 4 is adopted, the rotating shaft 25 on the driving wheel 22 is meshed with the driven bevel gear through the active bevel gear 44. At this time, the active bevel gear 44 is not provided on the rotating shaft 25 located on one side of the clamping wheel 23.

[0050] Embodiment 2:

[0051] like Figures 5 to 8As shown, the present application further includes a spring 5, a mounting frame 24 is hinged on both sides of the lower holding ring 12, one end of the spring 5 is fixedly connected to the side of the mounting frame 24, and the other end of the spring 5 is fixedly connected to a sliding sleeve 6, which is sleeved on the connecting rod 13. The sliding sleeve 6 is provided with a screw tube 7 for upper limit rotation, so that the sliding sleeve 6 can rotate on the screw tube 7; the connecting rod 13 is provided with an external thread, and the screw tube 7 is threadedly connected to the connecting rod 13 through the external thread, so that the sliding sleeve 6 can be driven to perform vertical lifting movement on the connecting rod 13 by rotating the screw tube 7, so as to adjust the angle between the mounting frame 24 and the connecting rod 13, so as to adjust the clamping radius of the driving wheel 22 and the clamping wheel 23, so as to adapt to tree trunks of different diameters.

[0052] See also Fig. 9 The transmission shaft 43 of the present application includes a transmission shaft 1 431 and a transmission shaft 2 432. The transmission shaft 1 431 is rotatably arranged on the side of the upper holding ring 11, and the transmission shaft 2 432 is rotatably arranged on the rotating shaft 25 through a bracket 45. The transmission shaft 1 431 is connected to the transmission shaft 2 432 through a universal joint 433; the transmission gear 42 is connected to the transmission shaft 1 431, and the transmission bevel gear 41 is connected to the transmission shaft 2 432.

[0053] See also Fig. 9 The transmission shaft 432 of the present application is a tubular structure, a rectangular rod 434 is slidably arranged on the transmission shaft 432, and the transmission bevel gear 41 is arranged at the end of the rectangular rod 434; one side of the bracket 45 is rotatably connected to the rotating shaft 25, and the upper side of the bracket 45 is connected to the end of the rectangular rod 434 through a bearing, so that the rotating shaft 25 and the rectangular rod 434 can rotate on the bracket 45 and be perpendicular to each other, so that the active bevel gear 44 is meshed with the driven bevel gear.

[0054] Embodiment three:

[0055] like Figure 7 As shown, the upper holding ring 11 of the present application is provided with an annular groove 111, and the cutting knife 1 31 and the cutting knife 2 32 are rotatably located in the annular groove 111. The upper holding ring 11 is also provided with an annular limiting groove 112, and the annular limiting groove 112 is horizontally connected with the annular groove 111. The arc-shaped rack is rotatably located in the annular limiting groove 112. Arc-shaped through holes 113 are provided on both sides of the annular limiting groove 112. One side of the transmission gear 42 is rotatably located in the arc-shaped through hole 113 to engage with the arc-shaped rack for transmission; by providing the annular limiting groove 112, the protruding arc-shaped rack can limit the cutting knife 1 31 and the cutting knife 2 32 in the upper holding ring 11, so that they can rotate in the upper holding ring 11 to rotate and cut the branches on the tree trunk.

[0056] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A branch pruning device, characterized in that: include: A frame (1) which is mounted on a tree trunk by opening and closing; A climbing mechanism (2) is arranged on both sides of the lower end of the frame (1) so that the climbing mechanism (2) can roll and abut against the tree trunk; A rotary cutter mechanism (3) rotatably disposed on the upper portion of the frame (1); A transmission mechanism (4) is arranged on the frame (1), one end of which is transmission-connected to the climbing mechanism (2), and the other end of which is transmission-connected to the rotary cutter mechanism (3), so that when the climbing mechanism (2) clamps the tree trunk and climbs on it, the transmission mechanism (4) drives the rotary cutter mechanism (3) to rotate, thereby performing rotary cutting on branches on the tree trunk.

2. The branch pruning device according to claim 1, characterized in that: The frame (1) comprises an upper holding ring (11) and a lower holding ring (12) which are opened and closed, and the upper holding ring (11) is connected to the lower holding ring (12) via a connecting rod (13); and the climbing mechanism (2) is arranged on the lower holding ring (12).

3. The branch pruning device according to claim 2, characterized in that: The climbing mechanism (2) comprises a driving motor (21), a driving wheel (22) and a clamping wheel (23); mounting frames (24) are provided on both sides of the lower holding ring (12); the driving motor (21) and the driving wheel (22) are arranged on one of the mounting frames (24); the clamping wheel (23) is rotatably arranged on the other mounting frame (24); and the output end of the driving motor (21) is connected to the driving wheel (22) via a coupling or a reducer.

4. The branch pruning device according to claim 3, characterized in that: The rotary cutter mechanism (3) comprises a circular cutter 1 (31) and a circular cutter 2 (32), wherein the circular cutter 1 (31) and the circular cutter 2 (32) are semicircular ring structures, and the circular cutter 1 (31) and the circular cutter 2 (32) are rotatably arranged on the upper holding ring (11); arc gears (33) are arranged on the lower outer rings of the circular cutter 1 (31) and the circular cutter 2 (32), and the arc gears (33) are meshed with the transmission mechanism (4) for transmission.

5. The branch pruning device according to claim 4, characterized in that: The transmission mechanism (4) comprises a transmission bevel gear (41), a transmission gear (42) and a transmission shaft (43); the transmission shaft (43) is rotatably arranged on both sides of the upper holding ring (11); the transmission bevel gear (41) is connected to the lower end of the transmission shaft (43); the transmission gear (42) is connected to the upper end of the transmission shaft (43); the two driving wheels (22) are rotatably connected to the mounting frame (24) via a rotating shaft (25); the two clamping wheels (23) are rotatably connected to the mounting frame (24) via a rotating shaft (25); an active bevel gear (44) is arranged on the rotating shaft (25); the active bevel gear (44) is meshed with the transmission bevel gear (41) for transmission.

6. The branch pruning device according to claim 5, characterized in that: It also includes a spring (5), the mounting frame (24) is hinged to the two sides of the lower holding ring (12), one end of the spring (5) is fixedly connected to the side of the mounting frame (24), and the other end of the spring (5) is fixedly connected to a sliding sleeve (6), and the sliding sleeve (6) is sleeved on the connecting rod (13).

7. The branch pruning device according to claim 6, characterized in that: The transmission shaft (43) comprises a transmission shaft 1 (431) and a transmission shaft 2 (432); the transmission shaft 1 (431) is rotatably arranged on the side of the upper holding ring (11); the transmission shaft 2 (432) is rotatably arranged on the rotating shaft (25) via a bracket (45); the transmission shaft 1 (431) is connected to the transmission shaft 2 (432) via a universal joint (433); the transmission gear (42) is connected to the transmission shaft 1 (431); and the transmission bevel gear (41) is connected to the transmission shaft 2 (432).

8. The branch pruning device according to claim 7, characterized in that: The second transmission shaft (432) is a tubular structure, a rectangular rod (434) is slidably arranged on the second transmission shaft (432), and the transmission bevel gear (41) is arranged at the end of the rectangular rod (434); one side of the bracket (45) is rotatably connected to the rotating shaft (25).

9. The branch pruning device according to claim 6, characterized in that: A screw tube (7) is rotatably arranged on the sliding sleeve (6), an external thread is arranged on the connecting rod (13), and the screw tube (7) is threadably connected to the connecting rod (13) via the external thread.

10. The branch pruning device according to claim 4, characterized in that: The upper holding ring (11) is provided with an annular groove (111), the annular cutting blade 1 (31) and the annular cutting blade 2 (32) are rotatably located in the annular groove (111), the upper holding ring (11) is also provided with an annular limiting groove (112), the annular limiting groove (112) is horizontally connected with the annular groove (111), the arc-shaped rack is rotatably located in the annular limiting groove (112), arc-shaped through holes (113) are provided on both sides of the annular limiting groove (112), and one side of the transmission gear (42) is rotatably located in the arc-shaped through hole (113) to mesh with the arc-shaped rack for transmission.

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