A tree climbing and pruning machine with equal chain length adapted to driving and clamping

Abstract

The present invention discloses a tree climbing and pruning machine with equal chain length that is adapted for driving and clamping, and belongs to the technical field of forestry equipment. The tree climbing and pruning machine includes: a power mechanism, including a driving device, a driving sprocket, and a transmission chain; a distance adjustment mechanism, including a left bracket, a right bracket, a sliding rod, an adjustment device, and an adjustment rod; a left wheel group, including a left wheel group bracket with a hollow structure, a first driven sprocket, and a first driven wheel; a right wheel group, including a right wheel group bracket with a hollow structure, a second driven wheel, and a second driven sprocket; and a pruning knife group, including a knife holder, a first fixed blade, and a second fixed blade. The first driven wheel and the second driven wheel of the present invention are respectively arranged on both sides of the tree trunk, and the driving sprocket is driven to rotate by the operation of the driving device, and then the first driven wheel and the second driven wheel are caused to roll by the rotation of the first driven sprocket and the second driven sprocket, thereby avoiding the problems of rollover caused by the existing pruning and tree climbing machine whose center of gravity is concentrated on one side, and the force during the climbing process is more reasonable.

Description

Technical Field

[0001] The invention belongs to the technical field of forestry equipment, and in particular relates to a tree climbing and pruning machine with a constant chain length and adapted driving and clamping. Background Art

[0002] A tree-climbing pruning machine, a major alternative to manual pruning, uses a traveling mechanism (such as drive wheels or tracks) to climb, sawing or removing branches during the climb. Compared to other pruning machines, such as handheld pruning machines, tree-climbing pruning machines offer advantages such as unlimited pruning height, continuous operation, and high efficiency.

[0003] Existing tree climbing and pruning machines primarily use hydraulic stations, mobile power supplies, or single engines as their driving sources. For example, Chinese invention patent CN201480072311.7 uses a hydraulic station as its driving source, while CN201910197105.3 and 202111055181.4 use mobile generators or batteries as their driving sources. The technical solutions in these patents use hydraulic stations or mobile power supplies as their driving sources, resulting in the tree climbing and pruning machines being heavy and difficult to move when operating in forests. Furthermore, the energy conversion efficiency is low, making them uneconomical to use.

[0004] For tree-climbing pruning machines using a single engine as a driving source, simply attaching the engine to the machine not only improves energy conversion efficiency but also reduces the overall weight. For example, Chinese invention patent CN201610887041.6 describes a tree-climbing pruning machine that is typically divided into two main parts: one part houses the engine, on which all drive devices (including drive wheels and pruning devices) are located; the other part is a clamping part, which is equipped with driven devices such as driven wheels but lacks a drive device. The concentrated drive devices on one side mean that the tree-climbing pruning machine can only provide climbing power on one side of the tree trunk during climbing. This poses the risk of the machine being affected by the turning torque, causing it to flip or increase climbing resistance. Summary of the Invention

[0005] The present invention provides a tree climbing and pruning machine with equal chain length adapted for driving and clamping, so as to solve the problem that the existing tree climbing and pruning machines only provide climbing power on one side of the trunk during climbing, and are easily affected by the overturning torque, causing the machine to overturn or increase the climbing resistance.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The yoke is a gear train that is adapted to move the gears and guide rails of the vehicle to the left and right sides of the vehicle frame, and the yoke is a gear train that is adapted to move the gears and guide rails relative to the vehicle frame. The right wheel group includes a right wheel group bracket with a hollow structure, a second driven wheel, and a second driven sprocket; the right bracket is arranged on the outside of the right wheel group bracket, and the second driven wheel is arranged in the right wheel group bracket, and the rotating shaft of the second driven sprocket passes through the right bracket and the right wheel group bracket in sequence and is connected to the second driven wheel; the pruning knife group includes a knife holder, a first fixed blade, and a second fixed blade; the knife holder is arranged at the top of the left wheel group bracket, the first fixed blade is arranged at the top of the knife holder, and the second fixed blade is arranged at the top of the right wheel group bracket; the centers of the driving sprocket and the second driven sprocket are on the same horizontal line, and the first driven sprocket is above the driving sprocket; the transmission chain is connected to the driving sprocket, the first driven sprocket, and the second driven sprocket in sequence.

[0008] Furthermore, the left wheel group also includes a third driven sprocket and a fourth driven sprocket; the third driven sprocket and the fourth driven sprocket are both located below the first driven sprocket and are symmetrically arranged with the longitudinal center line of the first driven sprocket as the axis; the outer sides of the transmission chain are connected to the third driven sprocket and the fourth driven sprocket.

[0009] Furthermore, the pruning knife set also includes a rotating device and a movable blade; the rotating device is provided on the knife seat, and the output shaft of the rotating device is connected to the movable blade; the movable blade and the first fixed blade are not on the same horizontal plane.

[0010] Furthermore, the movable blade includes a left blade and a right blade; the left blade and the right blade are respectively connected to the rotating device; and the structure enclosed by the left blade and the right blade is circular.

[0011] Furthermore, the left wheel assembly also includes a third driven wheel and a synchronous belt; the third driven wheel is located below the first driven wheel and is movably arranged in the left wheel assembly bracket; the third driven wheel is connected to the first driven wheel via the synchronous belt.

[0012] Furthermore, the second driven wheel is provided with a groove, and the groove is configured as an arc-shaped structure.

[0013] Furthermore, at least one sliding rod is provided, which is connected to the upper and lower ends of the left bracket and the right bracket respectively; the adjustment rod is located between the upper and lower sliding rods.

[0014] Furthermore, the left wheel assembly bracket also includes an adjusting slider, a transmission nut, and a spring; the adjusting slider is located between the left bracket and the left wheel assembly bracket; the transmission nut is arranged on the side of the adjusting slider, and the adjusting rod passes through the transmission nut and the adjusting slider in sequence; the sliding rod passes through the adjusting slider; the two ends of the spring are respectively connected to the mounting block and the adjusting slider; the sliding rod is inside the spring.

[0015] Furthermore, the left wheel assembly bracket also includes a transmission chain tensioning mechanism, which is arranged on the side of the left wheel assembly bracket and is on the same side as the first driven sprocket; the transmission chain tensioning mechanism can be rotatably pressed against the side of the transmission chain.

[0016] Furthermore, the left wheel group bracket also includes a synchronous belt tensioning mechanism, which is arranged on the side of the left wheel group bracket; the top of the synchronous belt tensioning mechanism is connected to the rotating shaft of the third driven wheel, and the synchronous belt tensioning mechanism can adjust the position of the third driven wheel up and down to tension the synchronous belt.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The first driven wheel and the second driven wheel of the present invention are respectively arranged on both sides of the tree trunk. The driving device drives the active sprocket to rotate, and then the first driven sprocket and the second driven sprocket rotate to make the first driven wheel and the second driven wheel roll. This avoids the problem of rollover caused by the center of gravity of the existing pruning tree climbing machine being concentrated on one side, and is not affected by changes in the size of the tree trunk. The force during the climbing process is more reasonable.

[0019] 2. The distance adjustment mechanism is set to drive the adjustment rod to rotate through the operation of the adjustment device, so that the left wheel group slides in the length direction of the slide rod, and the distance between the left wheel group and the right wheel group is adjusted by sliding the left wheel group bracket to achieve adjustment and fixation on tree trunks of different diameters, thereby meeting the distance adjustment requirements of different tree climbing and pruning machines.

[0020] 3. The pruning knife group realizes pruning through the combination of the first fixed blade, the second fixed blade, and the left blade and the right blade; when in use, when the tree climbing pruning machine climbs upward, the left blade and the right blade are closed around the outside of the tree trunk through the rotating device, and the first fixed blade and the second fixed blade are arranged facing each other, ensuring thorough pruning and avoiding missing branches.

[0021] The tree climbing and pruning machine of the present invention adopts a driving device as a power source, which has the advantage of a small weight of the whole machine. The left wheel group and the right wheel group arranged on both sides of the tree trunk are driven to climb by the combined use of the driving sprocket, the first driven sprocket and the second driven sprocket, thereby avoiding the problem that the existing tree climbing and pruning machine only has one side providing climbing power, which is easily affected by the overturning torque and causes the machine to overturn or increase the climbing resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 Schematic diagram of the power mechanism.

[0025] Figure 3 Schematic diagram of the adjustment mechanism.

[0026] Figure 4 Schematic diagram of the left wheel assembly.

[0027] Figure 5 This is a schematic diagram of the right wheel group.

[0028] Figure 6 Schematic diagram of the transmission chain connection.

[0029] Figure numbers: 01-trunk, 1-power mechanism, 11-driving device, 12-driving sprocket, 13-transmission chain, 14-speed reduction and shifting device, 2-pitch adjustment mechanism, 21-left bracket, 211-hole, 22-right bracket, 23-sliding rod, 24-adjusting device, 25-adjusting rod, 3-left wheel group, 31-left wheel group bracket, 311-mounting block, 312-adjusting slider, 313-transmission nut, 314-spring, 315-transmission chain tensioning mechanism, 316-synchronization Belt tensioning mechanism, 32-first driven sprocket, 33-first driven wheel, 34-third driven sprocket, 35-fourth driven sprocket, 36-third driven wheel, 37-synchronous belt, 4-right wheel group, 41-right wheel group bracket, 42-second driven wheel, 421-groove, 43-second driven sprocket, 5-pruning knife group, 51-knife holder, 52-first fixed blade, 53-second fixed blade, 54-rotating device, 55-movable blade, 551-left blade, 552-right blade. DETAILED DESCRIPTION

[0030] To facilitate a better understanding of the present invention, the following examples are provided to illustrate the present invention in conjunction with the accompanying drawings. These examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.

[0031] Example 1

[0032] A tree climbing and pruning machine with equal chain length adapted to drive and clamping, such as Figures 1-6As shown, it includes: a power mechanism 1, including a driving device 11, a driving sprocket 12, and a transmission chain 13; the output shaft of the driving device 11 is connected to the driving sprocket 12; the pitch adjustment mechanism 2, including a left bracket 21, a right bracket 22, a sliding rod 23, an adjusting device 24, and an adjusting rod 25; a hole 211 is provided on the side of the left bracket 21, and the output shaft of the driving device 11 extends outward through the hole 211; both ends of the sliding rod 23 are connected to the left bracket 21 and the right bracket 22; the adjusting device 24 is provided on the outside of the right bracket 22, and the output shaft of the adjusting device 24 is connected to the adjusting rod 25; the left wheel group 3, including a left wheel group bracket 31 of a hollow structure, a first driven sprocket 32, and a first driven wheel 33; the position of the left wheel group bracket 31 relative to the sliding rod 23 and the adjusting rod 25 is provided with a mounting block 311 so that the left wheel group bracket 31 can slide along the length direction of the sliding rod 23; the outside of the left wheel group bracket 31 is provided with a first driven sprocket 32; the first driven wheel 33 is movably provided on the left wheel group bracket The right wheel group 4 comprises a hollow right wheel group bracket 41, a second driven wheel 42 and a second driven sprocket 43; the right bracket 22 is arranged on the outside of the right wheel group bracket 41, and the second driven wheel 42 is arranged in the right wheel group bracket 41. The rotating shaft of the second driven sprocket 43 passes through the right bracket 22 and the right wheel group bracket 41 in sequence and is connected to the second driven wheel 42; the pruning knife group 5 comprises a knife seat 51, The first fixed blade 52 and the second fixed blade 53; the blade holder 51 is arranged on the top of the left wheel group bracket 31, the first fixed blade 52 is arranged on the top of the blade holder 51, and the second fixed blade 53 is arranged on the top of the right wheel group bracket 41; the centers of the driving sprocket 12 and the second driven sprocket 43 are on the same horizontal line, and the first driven sprocket 32 is above the driving sprocket 12; the transmission chain 13 is connected to the driving sprocket 12, the first driven sprocket 32, and the second driven sprocket 43 in sequence.

[0033] The driving device can be an engine; the adjusting device can be a screw motor, and the adjusting rod can be a screw.

[0034] The tree climbing and pruning machine may be provided with a battery for providing power to a driving device, an adjusting device, a rotating device and the like.

[0035] The driving sprocket obtains rotational power through the operation of the driving device. Since the driving sprocket is connected to the first and second driven sprockets via a transmission chain, the rotation of the driving sprocket will inevitably drive the rotation of the transmission chain. Since the first driven sprocket is connected to the first driven wheel via a gear transmission, and the second driven sprocket is connected to the second driven wheel via a rotating shaft, when the driving sprocket drives the transmission chain to rotate, the operation of the transmission chain will drive the rotation of the first and second driven sprockets, thereby allowing the first and second driven wheels to obtain rotational power, thereby causing the tree climbing and pruning machine to roll upward or downward.

[0036] The output shaft of the driving device is connected to the input shaft of the reduction gear shifting device, and the output shaft of the reduction gear shifting device is connected to the driving sprocket; the reduction gear shifting device is provided with a reduction mechanism and a shifting mechanism that can realize three gears of forward, idle and reverse. Driven by the motor, the shifting mechanism can be switched to the forward gear, idle gear and reverse gear.

[0037] The tree climbing and pruning machine is provided with a controller and a remote controller for sending control instructions to the controller.

[0038] Directions:

[0039] Before installing the tree climbing pruning machine, send a command to the controller through the remote control to operate the adjustment device of the distance adjustment mechanism to rotate the adjustment rod. At this time, the left wheel group is away from the tree trunk, ensuring that the distance between the left wheel group and the right wheel group is suitable for easy installation; straighten the tree climbing pruning machine so that the second driven wheel and the second fixed blade of the right wheel group are in contact with the outer periphery of the tree trunk; then control the adjustment device to operate and move the left wheel group by rotating the adjustment rod, and stop when the second fixed blade and the synchronous belt of the left wheel group are in contact with the outer periphery of the tree trunk.

[0040] The remote control sends a control command, the drive device runs, and the deceleration shift device switches to the forward gear. At this time, the rotation of the driving sprocket drives the transmission chain to rotate, thereby rotating the first driven sprocket and the second driven wheel sprocket, thereby rotating the first driven wheel and the second driven wheel, and finally causing the tree climbing pruning machine to climb upward; during the upward climbing process, due to the action of the first fixed blade and the second fixed blade, the branches encountered when climbing upward are cut off; during the climbing process, the operation of the adjustment device is controlled by the remote control, so that the adjustment rod is gradually retracted, so that the first driven wheel and the second driven wheel can stick to the outer periphery of the tree trunk for climbing.

[0041] After completing the pruning operation, the remote control is used to control the deceleration shift device to switch to the reverse gear, so that the tree climbing pruning machine climbs down until it reaches a suitable height from the ground. Then the driving device is turned off and the adjustment device is controlled to operate so that the adjustment lever is rotated to make the left wheel group move away from the tree trunk and stop at a suitable position. Then the tree climbing pruning machine can be removed; repeat the above operation to prune the next tree.

[0042] Example 2

[0043] The tree climbing pruning machine of the present invention also has the following technical features:

[0044] like Figure 1 、 Figure 4 、 Figure 6As shown, the left wheel group 3 also includes a third driven sprocket 34 and a fourth driven sprocket 35; the third driven sprocket 34 and the fourth driven sprocket 35 are rotatably arranged on the side of the left wheel group bracket 31 and are both below the first driven sprocket 32, and are symmetrically arranged with the longitudinal center line of the first driven sprocket 32 as the axis; the outer sides of the transmission chain 13 are connected to the third driven sprocket 34 and the fourth driven sprocket 35.

[0045] like Figure 1 、 Figure 4 As shown, the left wheel assembly bracket 31 also includes a transmission chain tensioning mechanism 315, which is arranged on the side of the left wheel assembly bracket 31 and is on the same side as the first driven sprocket 32; the transmission chain tensioning mechanism 315 can be rotatably pressed against the side of the transmission chain 13.

[0046] The third driven sprocket and the fourth driven sprocket are symmetrically arranged with the longitudinal center line of the first driven sprocket as the axis, so that the third driven sprocket and the fourth driven sprocket can be arranged at appropriate positions so as to have the same position as the transmission chain.

[0047] The third driven sprocket, the fourth driven sprocket, the driving sprocket, the first driven sprocket and the second driven sprocket are all located on the same side for easy installation and operation of the transmission chain.

[0048] The third and fourth driven sprockets are connected to the outside of the transmission chain, while the inside of the transmission chain is connected to the driving sprocket, the first driven sprocket and the second driven sprocket respectively, which can make the inside and outside of the transmission chain more balanced and ensure its stable operation.

[0049] The transmission chain tensioning mechanism includes a fixed rod fixed to the side of the left wheel group bracket, a rotating rod that can rotate around the fixed rod is provided on the fixed rod, and a tensioning wheel is provided at the end of the rotating rod. The tensioning wheel presses against the outside of the transmission chain from the bottom upward, thereby ensuring the tension of the transmission chain.

[0050] Example 3

[0051] The tree climbing pruning machine of the present invention also has the following technical features:

[0052] like Figure 1 、 Figure 4-Figure 5 As shown, the pruning knife group 5 further includes a rotating device 54 and a movable blade 55; the rotating device 54 is provided on the knife seat 51, and the output shaft of the rotating device 54 is connected to the movable blade 55; the movable blade 55 and the first fixed blade 52 are not on the same horizontal plane.

[0053] like Figure 1 、 Figure 4 As shown, the movable blade 55 includes a left blade 551 and a right blade 552; the left blade 551 and the right blade 552 are respectively connected to the rotating device 54; the structure enclosed by the left blade 551 and the right blade 552 is circular.

[0054] The first fixed blade has an upward cutting edge and is in an arc-shaped structure, so as to fit closely with the periphery of one side of the tree trunk.

[0055] The movable blade is an arc-shaped structure and is divided into a left blade and a right blade; there are two rotating devices, and their output shafts are respectively connected to the left blade and the right blade for rotation, so that when the rotating device rotates, it can expand outward or close inward in the horizontal direction to fit the periphery of both sides of the trunk.

[0056] The first fixed blade and the movable blade are not located on the same horizontal plane, so as to prevent the first fixed blade from affecting the opening or closing of the left blade and the right blade when the rotating device is running.

[0057] The rotating device can select a motor as needed to achieve the ability to control the operating states of the left blade and the right blade when the rotating device is running.

[0058] During use, the remote control sends a control command, and after receiving the command, the controller controls the rotation device to operate, so that the left blade and the right blade are expanded outward; at the same time, the adjustment device is controlled to operate to rotate the adjustment rod to a suitable position, so that the left wheel group is away from the right wheel group; then, the second driven wheel and the second fixed blade of the right wheel group of the tree climbing pruning machine are attached to the periphery of the tree trunk, and then the adjustment device is controlled by the remote control to rotate the adjustment rod so that the left wheel group moves toward the right wheel group to a suitable position. At this time, the first driven wheel and the first fixed blade are attached to the periphery of the tree trunk, and the adjustment device is controlled to stop rotating the adjustment rod; then the rotation device is controlled to operate so that the left blade and the right blade are closed inward and stop when they are attached to the periphery of the tree trunk. In this way, the installation of the tree climbing pruning machine is completed.

[0059] The speed reduction shift device is controlled to shift to the forward gear, causing the tree climbing pruning machine to climb upwards for pruning operations. After pruning is completed, the speed reduction shift device is switched to the reverse gear, and the tree climbing pruning machine climbs downwards. When it falls to a suitable height from the ground, the drive device is turned off, the rotation device is controlled to operate, causing the left and right blades to unfold outwards, and the adjustment device is controlled to operate, causing the adjustment lever to rotate to drive the left wheel group to move outwards to the appropriate position, and then stop. In this way, the tree climbing pruning machine can be removed and installed on another tree trunk for pruning operations.

[0060] Example 4

[0061] The tree climbing pruning machine of the present invention also has the following technical features:

[0062] like Figure 1 、 Figure 4 As shown, the left wheel assembly 3 further includes a third driven wheel 36 and a synchronous belt 37 ; the third driven wheel 36 is located below the first driven wheel 33 and is movably disposed in the left wheel assembly bracket 31 ; the third driven wheel 36 is connected to the first driven wheel 33 via a synchronous belt 37 .

[0063] like Figure 5 As shown, the second driven wheel 42 is provided with a groove 421 , and the groove 421 is configured as an arc-shaped structure.

[0064] like Figure 1 、 Figure 3 As shown, there are at least two slide bars 23 , which are connected to the upper and lower ends of the left bracket 21 and the right bracket 22 respectively; the adjustment rod 25 is located between the upper and lower slide bars 23 .

[0065] like Figure 1 、 Figure 4 As shown, the left wheel assembly bracket 31 also includes an adjusting slider 312, a transmission nut 313, and a spring 314; the adjusting slider 312 is located between the left bracket 21 and the left wheel assembly bracket 31; the transmission nut 313 is provided on the side of the adjusting slider 312, and the adjusting rod 25 passes through the transmission nut 313 and the adjusting slider 312 in sequence; the slide rod 23 passes through the adjusting slider 312; the two ends of the spring 314 are respectively connected to the mounting block 311 and the adjusting slider 312; the slide rod 23 is inside the spring 314.

[0066] like Figure 1 、 Figure 4 As shown, the left wheel assembly bracket 31 also includes a synchronous belt tensioning mechanism 316, which is arranged on the side of the left wheel assembly bracket 31; the top of the synchronous belt tensioning mechanism 316 is connected to the rotating shaft of the third driven wheel 36, and the synchronous belt tensioning mechanism 316 can adjust the position of the third driven wheel 36 up and down to tension the synchronous belt 37.

[0067] A third driven wheel is provided to connect the first driven wheel and the third driven wheel through a synchronous belt. When the first driven wheel rolls, the third driven wheel is driven to roll and climb together due to the action of the synchronous belt, so that the center of the tree climbing pruning machine can be made more stable. When in use, the synchronous belt and the second driven wheel are respectively arranged on both sides of the tree trunk and are attached to the outer periphery of the trunk.

[0068] Since the periphery of the tree trunk is arc-shaped, the provided groove can make the second driven wheel parts on both sides of the groove stick to the periphery of the tree trunk during the climbing and rolling process, thereby improving the climbing and rolling stability of the entire machine.

[0069] There are two sliding rods, one above the other, with both ends connected to the left bracket and the other to the right bracket, which can provide a stable connection and make the left wheel assembly more stable when sliding along the sliding rod.

[0070] The transmission nut used can make the adjustment distance of the adjustment rod more accurate during the rotation process, facilitate the control processing of the controller to make the synchronous belt of the left wheel group fit into the outer periphery of one side of the trunk, and reduce the resistance during the transmission process.

[0071] The top of the synchronous belt tensioning mechanism is similar to a U-shaped structure, in which the rotating shaft of the third driven wheel is arranged and can rotate. There are two synchronous belt tensioning mechanisms symmetrically arranged on both sides of the left wheel group bracket; when it is necessary to adjust and maintain the tensioning state of the synchronous belt, it can be achieved by adjusting the height of the two synchronous belt tensioning mechanisms.

[0072] Before installing the tree pruner, the distance adjustment mechanism's adjustment device rotates the adjustment lever, moving the left wheel assembly away from the tree trunk. The machine is then straightened so that the second driven wheel and second fixed blade of the right wheel assembly are in contact with the tree trunk. The adjustment device then rotates the adjustment lever to move the left wheel assembly, stopping when the second fixed blade and timing belt of the left wheel assembly are in contact with the tree trunk. The adjustment slider and spring on the left wheel assembly bracket act as a buffer when the adjustment lever is extended or retracted, improving the stability of the tree pruner and reducing the shaking of the left wheel assembly during movement.

[0073] In the present invention, the specific models of the driving device, engine, regulating device, screw motor, rotating device, etc. are not the improvements created by the present invention and will not be described in detail here.

[0074] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "includes an element defined by ... does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element."

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tree climbing and pruning machine with equal chain length adapted to drive and clamping, characterized in that: include: A power mechanism (1) comprises a driving device (11), a driving sprocket (12), and a transmission chain (13); an output shaft of the driving device (11) is connected to the driving sprocket (12); The distance adjustment mechanism (2) comprises a left bracket (21), a right bracket (22), a slide bar (23), an adjustment device (24), and an adjustment rod (25); a hole (211) is provided on the side of the left bracket (21), and the output shaft of the driving device (11) extends outward through the hole (211); both ends of the slide bar (23) are connected to the left bracket (21) and the right bracket (22); the adjustment device (24) is provided on the outside of the right bracket (22), and the output shaft of the adjustment device (24) is connected to the adjustment rod (25); A left wheel assembly (3) comprises a left wheel assembly bracket (31) of a hollow structure, a first driven sprocket (32), and a first driven wheel (33); a mounting block (311) is provided at a position of the left wheel assembly bracket (31) relative to the slide bar (23) and the adjustment rod (25) so that the left wheel assembly bracket (31) can slide along the length direction of the slide bar (23); a first driven sprocket (32) is provided on the outside of the left wheel assembly bracket (31); the first driven wheel (33) is movably arranged in the left wheel assembly bracket (31) and is connected to the first driven sprocket (32) via a gear transmission; The right wheel assembly (4) comprises a right wheel assembly bracket (41) of a hollow structure, a second driven wheel (42), and a second driven sprocket (43); the right bracket (22) is arranged on the outside of the right wheel assembly bracket (41), the second driven wheel (42) is arranged inside the right wheel assembly bracket (41), and the rotating shaft of the second driven sprocket (43) passes through the right bracket (22) and the right wheel assembly bracket (41) in sequence and is connected to the second driven wheel (42); A pruning knife group (5) comprising a knife seat (51), a first fixed blade (52), and a second fixed blade (53); the knife seat (51) is arranged on the top of the left wheel group bracket (31), the first fixed blade (52) is arranged on the top of the knife seat (51), and the second fixed blade (53) is arranged on the top of the right wheel group bracket (41); The centers of the driving sprocket (12) and the second driven sprocket (43) are on the same horizontal line, and the first driven sprocket (32) is above the driving sprocket (12); The transmission chain (13) is sequentially connected to the driving sprocket (12), the first driven sprocket (32), and the second driven sprocket (43); The left wheel assembly (3) further includes a third driven sprocket (34) and a fourth driven sprocket (35); the third driven sprocket (34) and the fourth driven sprocket (35) are both located below the first driven sprocket (32) and are symmetrically arranged with the longitudinal center line of the first driven sprocket (32) as the axis; the outer sides of the transmission chain (13) are connected to the third driven sprocket (34) and the fourth driven sprocket (35); At least two slide bars (23) are provided, which are connected to the upper and lower ends of the left bracket (21) and the right bracket (22) respectively; the adjustment rod (25) is located between the upper and lower slide bars (23); The left wheel assembly bracket (31) further includes an adjusting slider (312), a transmission nut (313), and a spring (314); the adjusting slider (312) is located between the left bracket (21) and the left wheel assembly bracket (31); the transmission nut (313) is provided on the side of the adjusting slider (312); the adjusting rod (25) passes through the transmission nut (313) and the adjusting slider (312) in sequence; the slide rod (23) passes through the adjusting slider (312); the two ends of the spring (314) are respectively connected to the mounting block (311) and the adjusting slider (312); the slide rod (23) is located inside the spring (314).

2. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to claim 1, characterized in that: The pruning knife group (5) further comprises a rotating device (54) and a movable blade (55); the rotating device (54) is arranged on the knife seat (51), and the output shaft of the rotating device (54) is connected to the movable blade (55); the movable blade (55) and the first fixed blade (52) are not located on the same horizontal plane.

3. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to claim 2, characterized in that: The movable blade (55) comprises a left blade (551) and a right blade (552); the left blade (551) and the right blade (552) are respectively connected to the rotating device (54); and the structure enclosed by the left blade (551) and the right blade (552) is circular.

4. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to any one of claims 1 to 3, characterized in that: The left wheel assembly (3) further comprises a third driven wheel (36) and a synchronous belt (37); the third driven wheel (36) is located below the first driven wheel (33) and is movably arranged in the left wheel assembly bracket (31); the third driven wheel (36) is connected to the first driven wheel (33) via the synchronous belt (37).

5. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to claim 4, characterized in that: The second driven wheel (42) is provided with a groove (421), and the groove (421) is configured as an arc-shaped structure.

6. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to claim 5, characterized in that: The left wheel assembly bracket (31) further includes a transmission chain tensioning mechanism (315), which is arranged on a side surface of the left wheel assembly bracket (31) and is located on the same side as the first driven sprocket (32); the transmission chain tensioning mechanism (315) is rotatably pressed against a side surface of the transmission chain (13).

7. A tree climbing and pruning machine with equal chain length adapted for driving and clamping according to claim 6, characterized in that: The left wheel assembly bracket (31) further includes a synchronous belt tensioning mechanism (316), which is arranged on the side of the left wheel assembly bracket (31); the top of the synchronous belt tensioning mechanism (316) is connected to the rotating shaft of the third driven wheel (36), and the synchronous belt tensioning mechanism (316) can adjust the position of the third driven wheel (36) up and down to tension the synchronous belt (37).

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