A trimmer for spherical vegetation

Abstract

The present invention discloses a trimmer for spherical vegetation in the technical field of trimming machinery, comprising a traveling device, the traveling device comprising a frame, a trimming mechanism with an adjustable angle connected to the frame, the trimming mechanism comprising a rotatable disc, a downward end of an output shaft for driving the disc to rotate is fixedly connected to a fixing frame, a connecting frame is provided on the outward side of the fixing frame, a horizontal supporting part is provided on the connecting frame, a plurality of in-line and height-adjustable pull rods are connected to the horizontal supporting part, one end of the pull rod extending downward from the horizontal supporting part is hinged with an adjusting frame, one end of the adjusting frame extending downward is rotatably connected to a cutting disc, among three adjacent adjusting frames, one end of the topmost adjusting frame is hinged to one end of the middle adjusting frame, and the other end of the middle adjusting frame is hinged to one end of the bottommost adjusting frame; the present invention is easy to install, simple to maintain and highly efficient.

Description

Technical Field

[0001] The invention belongs to the technical field of pruning machinery, and in particular relates to a pruning machine for spherical vegetation. Background Art

[0002] Green belt refers to a strip of land for greening. It can eliminate visual fatigue, purify the environment, beautify the city, and reduce traffic accidents, and it occupies an irreplaceable and important position in the city. In particular, the highway green belt guarantees the traffic function of the highway, and strengthens the functions of soil and water conservation, sight guidance, signs, instructions, anti-glare, and shielding. When driving at high speed at night, the eyes will not be illuminated by the headlights of the vehicles on the opposite side, so that you can drive safely.

[0003] There are often spherical-shaped vegetation in green belts. For this kind of vegetation, special trimmers are needed for trimming. In the prior art, a patent is disclosed with the name of "A deformable trimmer that can be used for spherical vegetation", the announcement number is CN107548769 A, and the announcement date is 20180109. This deformable trimmer includes a frame, a vertical hydraulic rod, a horizontal hydraulic rod and a trimming tool. A lifting platform is fixed above the vertical hydraulic rod, and the horizontal hydraulic rod is fixed on the lifting platform. A loading platform is fixed at the end of the horizontal hydraulic rod. A rotating motor for driving the rotating shaft to rotate is arranged on the loading platform. The trimming tool is provided with a transmission mechanism, an angle adjustment mechanism and a tensioning mechanism. The trimming tool is composed of a plurality of tool sections hinged in sequence. The tool section is composed of a frame, an axle, a double pulley, an upper blade and a lower blade. The axle is rotatably arranged on the frame, the double pulley is fixed on the axle, and the lower blade is fixed on the frame. The double pulleys on adjacent tool sections are connected via belt transmission, and a belt motor is fixed on the uppermost tool section. The output shaft of the belt motor is fixedly connected to the wheel axle on the tool section. In this design, the tool section needs to be installed in each frame, and there are many parts, which makes installation troublesome. A belt motor drives each wheel axle to rotate via a belt. As long as one of the double pulleys slips, the blade at this position cannot cut, and at the same time, it will also affect the normal operation of other double pulleys. Furthermore, as long as one of the tool sections is damaged, the entire belt needs to be removed, replaced with a new tool section, and the transmission mechanism needs to be reinstalled, which makes maintenance cumbersome and inefficient. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a trimmer for spherical vegetation, which solves the technical problems of cumbersome installation and complicated maintenance in the prior art. The present invention is easy to install, simple to maintain and highly efficient.

[0005] The objective of the present invention is achieved as follows: A trimmer for spherical vegetation comprises a traveling device, the traveling device comprises a frame, the frame is connected to a trimming mechanism with an adjustable angle, the trimming mechanism comprises a rotatable disc, the downward end of an output shaft for driving the disc to rotate is fixedly connected to a fixing frame, the outward side of the fixing frame is provided with a connecting frame, the connecting frame is provided with a horizontal supporting portion, the horizontal supporting portion is connected to a plurality of pull rods arranged in a line and adjustable in height, one end of the pull rod extending downward from the horizontal supporting portion is hinged with an adjusting frame, one end extending downward from the adjusting frame is rotatably connected to a cutting disc, and among three adjacent adjusting frames, one end of the topmost adjusting frame is hinged to one end of the middle adjusting frame, and the other end of the middle adjusting frame is hinged to one end of the bottommost adjusting frame.

[0006] In the present invention, the rotation of the output shaft drives the rotation of the fixed frame to adjust the height of the pull rod. Among two adjacent adjustment frames, one adjustment frame rotates relative to the other adjustment frame to achieve the shape adjustment formed by a plurality of cutting disks. The adjustment is convenient. Each cutting disk rotates independently. When the transmission mechanism needs to be replaced, it is only necessary to replace the transmission mechanism on the corresponding adjustment frame. The maintenance is convenient and efficient. In addition, when the present invention is installed, threaded holes that cooperate with each pull rod are opened on the horizontal support part. It is only necessary to screw each pull rod into the corresponding threaded hole, and then hinge the pull rod and the adjustment frame. Finally, the adjustment frames are hinged together. The installation is convenient. It can be applied to the work of pruning spherical vegetation.

[0007] In order to further realize the trimming action, the adjustment frame includes a hinge part, the upward end of the hinge part is hinged to the downwardly extending end of the pull rod, the pull rod is threadedly connected to the horizontal support part, and the two ends of the downward side of the hinge part are respectively provided with a downwardly extending connecting part, and a fixing part is provided between the two connecting parts. A cutting motor is fixedly connected to the upper side of the fixing part, and a rotatable cutting shaft is connected to the cutting motor. The downwardly extending end of the cutting shaft is fixedly connected to the cutting disk, and the cutting shaft is perpendicular to the cutting disk.

[0008] In order to further realize the adjustable angle of the trimming mechanism, the frame is hinged with an articulated arm extending forward from the frame, and the frame is hinged with two linear drives 1, the linear drive 1 is connected with a telescopic rod 1 extending upward and capable of reciprocating linear movement, the upwardly extending ends of the two telescopic rods 1 are respectively hinged at the left and right sides of the articulated arm, the upward end of the articulated arm is hinged with a linear drive 2, the linear drive 2 is connected with a telescopic rod 2 extending forward and capable of reciprocating linear movement, the forward-extending end of the articulated arm is hinged with an angle adjustment rod, the forward-extending end of the telescopic rod 2 is hinged with the rear end of the angle adjustment rod, a lifting mechanism for driving the disc to rise and fall is provided above the disc, and a horizontal moving mechanism is connected to the lifting mechanism on the side opposite to the angle adjustment rod; in this design, the angle adjustment of the trimming mechanism is realized by the joint action of the linear drive 1 and the linear drive 2.

[0009] In order to further realize the extension of the trimming mechanism, the horizontal moving mechanism includes a horizontal connecting seat and a horizontal fixing block fixedly connected to the upper side of the angle adjustment rod, the upward end of the horizontal fixing block is fixedly connected to a horizontal fixing slider, the front side of the horizontal connecting seat is fixedly connected to a vertical fixing block, the horizontal connecting seat is rotatably connected to a horizontal moving screw rod, the horizontal fixing slider is threadedly connected to the horizontal moving screw rod, the lower side of one end of the horizontal connecting seat is fixedly connected to one end of the sliding plate, the horizontal fixing block is provided with a horizontal sliding hole, and the other end of the horizontal sliding plate is fixedly connected to the other end of the horizontal connecting seat after passing through the horizontal sliding hole. The horizontal sliding plate can slide horizontally along the horizontal sliding hole, the other end of the horizontal connecting seat is the end away from the lifting mechanism, the other end of the horizontal connecting seat is fixedly connected with a horizontal moving motor, the horizontal moving motor drives the horizontal moving screw to rotate, and the front side of the horizontal connecting seat is connected to the lifting mechanism; in this design, the horizontal fixed block and the horizontal fixed sliding block are both fixed on the angle adjustment rod, driving the movement of the horizontal moving screw to drive the movement of the entire horizontal connecting seat, the lifting mechanism is connected to the horizontal connecting seat, the horizontal sliding plate slides along the horizontal fixed block, the connection structure is reliable, and the movement is reliable when the horizontal moving seat extends outward or moves inward.

[0010] The lifting mechanism is a vertical traverse mechanism, and the vertical traverse mechanism is a vertical traverse mechanism, and the vertical traverse mechanism is a vertical traverse mechanism, and the vertical traverse mechanism is a vertical traverse mechanism.

[0011] In order to further realize the rotation of the disc, a rotating motor is fixedly connected to the downward side of the vertical connecting seat, an output shaft extending downward is connected to the rotating motor, a slip ring is connected to the outer side of the output shaft, an inner sleeve is fixedly connected to the disc, the inner sleeve is connected to the outer side of the slip ring, there is a clearance fit between the inner sleeve and the outer side of the slip ring, and the output shaft extending downward outside the slip ring is connected to the inner sleeve; in this design, the rotation of the disc can be realized, and power can be supplied to each cutting motor through the slip ring, and the structure is compact.

[0012] In order to accommodate branches and leaves, a cover plate is supported on the upward end of the disc, and the cover plate is fixedly connected to the housing of the rotating motor. The downward side of the cover plate, the inner side of the disc and the outer side of the inner sleeve form an accommodating cavity.

[0013] In order to further reduce the scattering of branches and leaves, an exhaust fan is fixedly connected to the frame, and the air suction port of the exhaust fan is connected to an exhaust pipe. The end of the exhaust pipe away from the exhaust fan is connected to the cover plate, and the downward opening of the exhaust pipe is connected to the accommodating cavity. A leaf suction pipe is connected to the lower side of the cover plate, and the downward end of the leaf suction pipe faces the cutting disk, and the upward end of the leaf suction pipe is connected to the accommodating cavity.

[0014] In order to facilitate the rotation of the adjustment frame, in any two adjacent adjustment frames below the uppermost end, a rotation groove for facilitating the rotation of the connecting part is provided on each adjustment frame on one side of the two adjustment frames arranged opposite to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the present invention.

[0016] Figure 2 It is a left view of the present invention.

[0017] Figure 3The three-dimensional structure of the present invention Figure 1 .

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] Figure 5 The three-dimensional structure of the present invention Figure 2 .

[0020] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0021] Figure 7 for Figure 3 A partial enlarged view of point C in the middle.

[0022] Figure 8 for Figure 3 A partial enlarged view of point D in the middle.

[0023] Fig. 9 It is the right side view of the present invention.

[0024] Fig.10 for Figure 5 A partial enlarged view of point E in the middle.

[0025] Fig.11 for Figure 5 A partial enlarged view of point F in the middle.

[0026] Fig.12 The three-dimensional structure of the present invention Figure 3 .

[0027] Fig.13 for Fig.12 A partial enlarged view of point H in the middle.

[0028] Fig.14 It is a three-dimensional structural diagram of the disc and the inner sleeve connected together in the present invention.

[0029] Fig.15 The three-dimensional structure of the present invention Figure 4 .

[0030] Fig.16 for Fig.15 A partial enlarged view of point I in the middle.

[0031] Among them, 1 walking device, 101 frame, 2 articulated arm, 3 trimming mechanism, 301 cutting disc, 302 cutting motor, 303 adjusting frame, 303a fixing part, 303b connecting part, 303c hinge part, 304 pull rod, 305 disc, 306 cutting rotating shaft, 307 fixing frame, 308 connecting frame, 308a horizontal supporting part, 309 leaf suction pipe, 310 rotating groove, 311 accommodating chamber, 4 linear drive one, 401 telescopic rod one, 5 lifting mechanism, 501 vertical fixed slider, 502 vertical connecting seat, 503 vertical moving screw rod, 504 vertical Sliding plate, 505 vertical fixed block, 506 lifting and moving motor, 6 horizontal moving mechanism, 601 horizontal fixed block, 602 horizontal sliding hole, 603 horizontal sliding plate, 604 horizontal moving screw rod, 605 horizontal connecting seat, 606 horizontal fixed slider, 607 horizontal moving motor, 7 angle adjustment rod, 8 linear drive two, 801 telescopic rod two, 9 exhaust pipe, 10 exhaust fan, 11 collection box, 12 rotating motor, 13 output shaft, 14 cover plate, 15 connecting piece, 1501 connecting hole, 1502 horizontal part, 1503 inclined part, 16 slip ring, 17 inner sleeve. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 16The spherical vegetation trimmer shown in the figure comprises a walking device 1, the walking device 1 comprises a rotatable frame 101, the frame 101 is connected to an angle-adjustable trimming mechanism 3, the trimming mechanism 3 comprises a rotatable disc 305, the downward end of an output shaft 13 driving the disc 305 to rotate is fixedly connected to a fixing frame 307, the fixing frame 307 is provided with a connecting frame 308 on the outward side, the connecting frame 308 is provided with a horizontal support portion 308a, and the horizontal support portion 308a is connected to a plurality of in-line and high The pull rod 304 is adjustable in degree, and one end of the pull rod 304 extending downward from the horizontal support part 308a is hinged with an adjustment frame 303, and one end of the adjustment frame 303 extending downward is rotatably connected to the cutting disk 301. Among the three adjacent adjustment frames 303, one end of the top adjustment frame 303 is hinged with one end of the middle adjustment frame 303, and the other end of the middle adjustment frame 303 is hinged with one end of the bottom adjustment frame 303. The specific structure of the adjustment frame 303 is that the adjustment frame 303 includes a hinge part 303c, and the hinge part 303c The upward end is hinged to the downwardly extending end of the pull rod 304, and the pull rod 304 is threadedly connected to the horizontal support part 308a. The two ends of the hinged part 303c on the downward side are respectively provided with a connecting part 303b extending downward, and a fixing part 303a is provided between the two connecting parts 303b. The upper side of the fixing part 303a is fixedly connected to the cutting motor 302, and the cutting motor 302 is connected to a rotatable cutting rotation shaft 306. The downwardly extending end of the cutting rotation shaft 306 is fixedly connected to the cutting disc 301, and the cutting rotation shaft 306 is fixedly connected to the cutting disc 301. 6 is perpendicular to the cutting disc 301, and in any two adjacent adjustment frames 303 below the uppermost end, on one side where the two fixing portions 303a are arranged opposite to each other, each fixing portion 303a is provided with a rotation groove 310 for facilitating the rotation of the connecting portion 303b, and the fixing portions 303a at the front and rear sides of the connecting portion 303b are respectively provided with a rotation groove 310; among all the adjustment frames 303, the uppermost adjustment frame 303 is fixedly connected to the fixing frame 307, and the uppermost cutting rotation shaft 306 extends downwardly out of the fixing frame 307.

[0034] In order to further realize the adjustable angle of the trimming mechanism 3, an articulated arm 2 extending forward from the frame 101 is hinged on the frame 101, and two linear drivers 4 are hinged on the frame 101. The linear driver 4 is connected to a telescopic rod 401 extending upward and capable of reciprocating linear movement. The upwardly extending ends of the two telescopic rods 401 are respectively hinged on the left and right sides of the articulated arm 2, and the upward end of the articulated arm 2 is hinged to a linear driver 8, and the linear driver 8 is connected to a telescopic rod 801 extending forward and capable of reciprocating linear movement. The end of the articulated arm 2 extending forward is hinged to an angle adjustment rod 7, and the end of the telescopic rod 801 extending forward is hinged to the rear end of the angle adjustment rod 7. A lifting mechanism 5 for driving the disc 305 to rise and fall is provided above the disc 305, and a horizontal moving mechanism 6 is connected to the side of the lifting mechanism 5 relative to the angle adjustment rod 7.

[0035] In order to further realize the extension of the trimming mechanism 3, the horizontal moving mechanism 6 includes a horizontal connecting seat 605 and a horizontal fixed block 601 fixedly connected to the upper side of the angle adjustment rod 7, the upward end of the horizontal fixed block 601 is fixedly connected to a horizontal fixed slider 606, the side of the horizontal connecting seat 605 away from the angle adjustment rod 7 is fixedly connected to a vertical fixed block 505, one end of the horizontal connecting seat 605 is rotatably connected to one end of the horizontal moving screw rod 604, the other end of the horizontal moving screw rod 604 is rotatably connected to the other end of the horizontal connecting seat 605, and the horizontal fixed slider 606 is threadedly connected to the horizontal moving screw rod 604. The lower side of one end of the horizontal connecting seat 605 is fixedly connected to one end of the sliding plate, and a horizontal sliding hole 602 is opened on the horizontal fixed block 601. The other end of the horizontal sliding plate 603 passes through the horizontal sliding hole 602 and is fixedly connected to the other end of the horizontal connecting seat 605. The horizontal sliding plate 603 can slide horizontally along the horizontal sliding hole 602. The other end of the horizontal connecting seat 605 is the end away from the lifting mechanism 5. The other end of the horizontal connecting seat 605 is fixedly connected to a horizontal moving motor 607. The horizontal moving motor 607 drives the horizontal moving screw rod 604 to rotate, and the front side of the horizontal connecting seat 605 is connected to the lifting mechanism 5.

[0036] In order to further realize the lifting and lowering of the trimming mechanism 3, the lifting mechanism 5 includes a vertical connecting seat 502 and a vertical fixed block 505 fixedly connected to the front side of the horizontal connecting seat 605, the front side of the vertical fixed block 505 is fixedly connected with a vertical fixed slider 501, the upper side of the vertical connecting seat 502 is fixedly connected with a lifting and moving motor 506, and the lifting and moving motor 506 is connected with a rotatable vertical moving screw rod 503, the vertical fixed slider 501 is threadedly connected to the vertical moving screw rod 503, the upper part of the vertical connecting seat 502 is fixedly connected with a vertical sliding plate 504, a vertical sliding hole is opened on the vertical fixed block 505, the downward end of the vertical sliding plate 504 passes through the vertical sliding hole and is fixedly connected to the lower part of the vertical connecting seat 502, and the vertical sliding plate 504 can slide vertically along the vertical sliding hole.

[0037] In order to further realize the rotation of the disc 305, a rotating motor 12 is fixedly connected to the downward side of the vertical connecting seat 502, and an output shaft 13 extending downward is connected to the rotating motor 12. A slip ring 16 is connected to the outer side of the output shaft 13. An inner sleeve 17 is fixedly connected to the inside of the disc 305. The inner sleeve 17 is connected to the outer side of the slip ring 16. There is a clearance fit between the inner sleeve 17 and the outer side of the slip ring 16. The output shaft 13 extending downward from the slip ring 16 is connected to the inner sleeve 17.

[0038] In order to further reduce the scattering of branches and leaves, a cover plate 14 is supported at one end of the disc 305 facing upward, and the cover plate 14 is fixedly connected to the housing of the rotating motor 12 via a connecting piece 15. The connecting piece 15 includes a horizontal portion 1502 and an inclined portion 1503 which are integrated into one body. The horizontal portion 1502 is provided with a plurality of connecting holes 1501. The horizontal portion 1502 and the cover plate 14 are connected together by fastening screws passing through the connecting holes 1501. The side of the horizontal portion 1502 facing the rotating motor 12 is the inclined portion 1503, and the inclined portion 1503 is fixedly connected to the rotating motor 12. Two connecting pieces 15 are provided, and the two connecting pieces 15 are connected with respect to the output shaft 13. The axial center is symmetrically arranged, and the downward side of the cover plate 14, the inner side of the disc 305 and the outer side of the inner sleeve 17 form a accommodating chamber 311. The frame 101 is fixedly connected to the exhaust fan 10, and the air suction port of the exhaust fan 10 is connected to the exhaust pipe 9. The end of the exhaust pipe 9 away from the exhaust fan 10 is connected to the cover plate 14, and the downward opening of the exhaust pipe 9 is connected to the accommodating chamber 311. The lower side of the cover plate 14 is connected to the leaf suction pipe 309, and the downward end of the leaf suction pipe 309 faces the cutting disk 301, and the upward end of the leaf suction pipe 309 is connected to the accommodating chamber 311. The outlet of the exhaust fan 10 is connected to the collecting box 11, and the collecting box 11 is connected to the frame 101.

[0039] In the present invention, the walking device 1 is a crawler-type walking device 1 (this is the prior art, and the frame 101 can rotate, which is also the prior art); first adjust the position of each cutting disc 301 so that the shape formed by all the cutting discs 301 is similar to the shape of the vegetation to be pruned. Specifically, rotate each pull rod 304 from bottom to top in sequence. When the arc size needs to be reduced, control the rotation direction of the pull rod 304 to move the pull rod 304 downward. When the arc size needs to be increased, the pull rod 304 rotates in the opposite direction and lifts the pull rod 304 upward. When the shape formed by the cutting disc 301 is similar to the shape of the spherical vegetation to be pruned, stop rotating the pull rod 304, use a nut to screw on the pull rod 304, and the nut abuts against the upper side of the horizontal support portion 308a ; In addition, before trimming the vegetation, the trimming mechanism 3 is away from the vegetation, the telescopic rod 2 801 is in a retracted state, the telescopic rod 1 401 is in an extended state, the trimming mechanism 3 is away from the vegetation, and the trimming mechanism 3 is above the vegetation; when the vegetation needs to be trimmed, the linear drive 1 4 is actuated, the telescopic rod 1 401 is retracted downward, the articulated arm 2 is rotated downward, the linear drive 2 8 is actuated, the telescopic rod 2 801 is extended outward, and the angle adjustment rod 7 is rotated downward. When the trimming mechanism 3 descends to the set height and angle, the linear drive 1 4 and the linear drive 2 8 stop moving; the horizontal moving mechanism 6 and the lifting mechanism 5 are actuated, specifically, the horizontal moving motor 607 is actuated, and the horizontal moving motor 607 drives the horizontal moving screw rod 60 4 rotates, the horizontal moving screw rod 604 rotates and moves, the horizontal connecting seat 605 moves under the action of the horizontal moving screw rod 604, and the action direction of the horizontal moving motor 607 is controlled to make the horizontal moving screw rod 604 move outward. When the center of the disc 305 is basically right at the vegetation to be trimmed, the horizontal moving motor 607 stops; the lifting and moving motor 506 is activated, and the lifting and moving motor 506 drives the vertical moving screw rod 503 to rotate. The vertical moving screw rod 503 moves up and down and rotates under the action of the vertical moving slider, and the rotation direction of the lifting and moving motor 506 is controlled to make the uppermost cutting disc 301 contact the top of the vegetation to be trimmed. The rotating motor 12 and the exhaust fan 10 are activated, and the output shaft 13 rotates. The rotation of the output shaft 13 drives the rotation of the fixed frame 307, the rotation of the fixed frame 307 drives the rotation of the connecting frame 308, and the rotation of the connecting frame 308 drives the rotation of all the adjusting frames 303. At the same time, the cutting motor 302 is activated, the cutting disc 301 rotates, and the cutting disc 301 trims the branches and leaves. The trimmed branches and leaves pass through the leaf suction pipe 309, the accommodating chamber 311 and the exhaust pipe 9 in turn and enter the exhaust fan 10. The exhaust fan 10 discharges the branches and leaves into the collection box 11, further reducing the scattering of branches and leaves and alleviating the cleaning workload of sanitation workers. In the present invention, the position adjustment of the trimming mechanism 3 is achieved by the joint arrangement of the linear drive 1 4, the linear drive 2 8, the horizontal moving mechanism 6 and the lifting mechanism 5.The disc 305 is connected to the output shaft 13, and the disc 305 and the trimming mechanism 3 rotate synchronously, and the trimmed branches and leaves are drawn into the accommodating cavity 311 of the disc 305. At the same time, the slip ring 16 supplies power to each cutting motor 302. When the transmission mechanism needs to be replaced, it is only necessary to replace the transmission mechanism on the corresponding adjustment frame 303, which is convenient for maintenance and high in efficiency. In addition, when the present invention is installed, the horizontal support part 308a is provided with threaded holes that match each tie rod 304. It is only necessary to screw each tie rod 304 into the corresponding threaded hole, then hinge the tie rod 304 with the adjustment frame 303, and finally hinge each adjustment frame 303. It is convenient for installation; it can be applied to the work of trimming spherical vegetation. ;

[0040] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A spherical vegetation trimmer, comprising a traveling device, the traveling device comprising a frame, characterized in that: The frame is connected to an angle-adjustable trimming mechanism, which includes a rotatable disc, a downward end of an output shaft driving the disc to rotate is fixedly connected to a fixing frame, a connecting frame is provided on the outward side of the fixing frame, a horizontal support portion is provided on the connecting frame, a plurality of in-line and height-adjustable pull rods are connected to the horizontal support portion, one end of the pull rod extending downward from the horizontal support portion is hingedly connected to an adjusting frame, and one end extending downward from the adjusting frame is rotatably connected to a cutting disc, and among three adjacent adjusting frames, one end of the top adjusting frame is hingedly connected to one end of the middle adjusting frame, and the middle adjusting frame The other end of the section frame is hinged to one end of the lowest adjusting frame, and the adjusting frame includes a hinge part, and the upward end of the hinge part is hinged to the downwardly extending end of the pull rod, and the pull rod is threadedly connected to the horizontal supporting part, and the two ends of the downward side of the hinge part are respectively provided with a connecting part extending downward, and a fixing part is provided between the two connecting parts, and a cutting motor is fixedly connected to the upper side of the fixing part, and a rotatable cutting shaft is connected to the cutting motor, and a cutting disk is fixedly connected to the downwardly extending end of the cutting shaft, and the cutting shaft is perpendicular to the cutting disk, and an articulated arm extending forward from the frame is hinged on the frame.

2. A pruning machine for spherical vegetation according to claim 1, characterized in that: Two linear actuators are hinged on the frame, and a telescopic rod that extends upward and can move back and forth linearly is connected to the linear actuator. The ends of the two telescopic rods that extend upward are hinged to the left and right sides of the articulated arm respectively. The upward end of the articulated arm is hinged with a linear actuator. The linear actuator is connected with a telescopic rod that extends forward and can move back and forth linearly. The end of the articulated arm that extends forward is hinged with an angle adjustment rod, and the end of the telescopic rod that extends forward is hinged to the rear end of the angle adjustment rod. A lifting mechanism for driving the disc to rise and fall is provided above the disc, and a horizontal moving mechanism is connected to the side of the lifting mechanism opposite to the angle adjustment rod.

3. A trimmer for spherical vegetation according to claim 2, characterized in that: The cam is connected with the support of the lifting mechanism, and the cam is connected with the support of the lifting mechanism, and the cam is connected with the support of the lifting mechanism, and the cam is connected with the support of the lifting mechanism.

4. A trimmer for spherical vegetation according to claim 3, characterized in that: The lifting mechanism includes a vertical connecting seat and a vertical fixed block fixedly connected to the front side of the horizontal connecting seat, the front side of the vertical fixed block is fixedly connected to a vertical fixed slider, the vertical connecting seat is rotatably connected to a vertical moving screw rod, the vertical fixed slider is threadedly connected to the vertical moving screw rod, the upper part of the vertical connecting seat is fixedly connected to a vertical sliding plate, a vertical sliding hole is opened on the vertical fixed block, the downward end of the vertical sliding plate passes through the vertical sliding hole and is fixedly connected to the lower part of the vertical connecting seat, the vertical sliding plate can slide vertically along the vertical sliding hole, and a vertical moving motor is fixedly connected to the upper side of the vertical connecting seat, and the vertical moving motor drives the vertical moving screw rod to rotate.

5. A trimmer for spherical vegetation according to claim 4, characterized in that: A rotating motor is fixedly connected to the downward side of the vertical connecting seat, an output shaft extending downward is connected to the rotating motor, a slip ring is connected to the outer side of the output shaft, an inner sleeve is fixedly connected to the disc, the inner sleeve is connected to the outer side of the slip ring, there is a clearance fit between the inner sleeve and the outer side of the slip ring, and the output shaft extending downward outside the slip ring is connected to the inner sleeve.

6. A trimmer for spherical vegetation according to claim 5, characterized in that: The upward end of the disc is supported with a cover plate, which is fixedly connected to the housing of the rotating motor. The downward side of the cover plate, the inner side of the disc and the outer side of the inner sleeve form a receiving cavity.

7. A trimmer for spherical vegetation according to claim 6, characterized in that: An exhaust fan is fixedly connected to the frame, and an exhaust pipe is connected to the air suction port of the exhaust fan. The end of the exhaust pipe away from the exhaust fan is connected to the cover plate, and the downward opening of the exhaust pipe is connected to the accommodating cavity. A leaf suction pipe is connected to the lower side of the cover plate, and the downward end of the leaf suction pipe faces the cutting disk, and the upward end of the leaf suction pipe is connected to the accommodating cavity.

8. A spherical vegetation trimmer according to any one of claims 2 to 7, characterized in that: In any two adjacent adjustment frames below the uppermost end, on one side where the two adjustment frames are arranged opposite to each other, each adjustment frame is provided with a rotation groove for facilitating the rotation of the connection part.

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