Winter shoot controlling and flower promoting cutting method for planting of Xianedone litchis

Abstract

The invention discloses a winter shoot controlling and flower promoting cutting method for planting Xianedone litchis. The method comprises the following steps that a to-be-cut litchis tree is determined; judging a cutting type suitable for the to-be-cut litchi tree; a cutting type and cutting parameters are set on the winter shoot controlling and blossom promoting cutting terminal; a winter shoot control flower promoting cutting terminal is started, and an electric control system of the winter shoot control flower promoting cutting terminal controls a surrounding mechanism to clamp the trunk to be cut; driving the cutting knife to radially move to approach the trunk to be cut through a radial driving mechanism until the cutting knife is inserted into the trunk by a specified depth; the cutting knife is driven by the circumferential driving mechanism to move circumferentially, and annular cutting is carried out; or the axial driving mechanism is used for driving the cutting knife to axially move so as to carry out spiral cutting; after cutting is completed, the electric control system controls the surrounding mechanism to loosen the trunk. An automatic cutting method is adopted to cut a litchi tree, the working efficiency is high, the cutting depth is consistent, and a better shoot control effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a litchi planting method, in particular to a winter shoot control and flower promotion cutting method for Xianjin Feng litchi planting. BACKGROUND

[0002] As an economic crop, litchi is rich in nutrients, including glucose, sucrose, protein, fat, and vitamins A, B, C, etc., and contains folic acid, arginine, tryptophan and various nutrients, which are very beneficial to human health. It is widely planted in the south of China. In order to improve the quality of litchi, litchi needs to be treated for shoot control.

[0003] Litchi shoot control is a measure to promote litchi into the flower bud differentiation period. Its essence is to convert litchi tree from vegetative growth to reproductive growth. It mainly reduces the content of auxins and gibberellins in litchi tree through chemical or physical measures, and increases the content of abscisic acid and cytokinin, so as to slow down or stop the growth of litchi, and increase the accumulation of organic nutrients in litchi, so as to prepare for litchi flower bud morphological differentiation.

[0004] The most commonly used physical measure for litchi shoot control is girdling or ring peeling. By girdling or ring peeling, the channel for transporting organic nutrients from the aboveground part of litchi tree to the underground part is blocked or affected, the growth of litchi root system is weakened, the ability of litchi root system to absorb water and inorganic salt is reduced, and then the growth of the aboveground part is inhibited. The specific method is: when litchi begins to enter the flower bud differentiation period, use a girdling knife or other tools to girdle or ring peel the main stem or branch, and when using the girdling knife, the worker needs to hold the girdling knife around the litchi main stem or branch, so as to leave a ring-shaped or spiral line cut mark on the surface of the litchi stem, thereby achieving the purpose of shoot control.

[0005] The above-mentioned shoot control method has the following disadvantages: 1. The manual cutting method is time-consuming and labor-intensive, and the cutting efficiency is relatively low.

[0006] 2. The depth of the cut is determined by the worker's sense of touch, and it is difficult to achieve precise cutting, so the shoot control effect needs to be further improved. SUMMARY

[0007] The purpose of the present application is to overcome the above-mentioned problems, and to provide a winter shoot control and flower promotion cutting method for Xianjin Feng litchi planting. The cutting method uses an automatic cutting method to cut the litchi tree, which not only has high working efficiency, but also has consistent cutting depth, which is beneficial to obtain better shoot control effect.

[0008] The purpose of the present application is achieved by the following technical scheme: A winter shoot control and flower promotion cutting method for Xianjin Feng litchi planting, comprising the following steps: (1) determining a litchi tree to be cut; (2) determining a suitable cutting type for the litchi tree to be cut, the cutting type including a spiral ring stripping mode and a ring cutting mode; (3) setting the cutting type and its cutting parameters on the winter shoot control and flower promoting cutting terminal; (4) starting the winter shoot control and flower promoting cutting terminal, controlling the opening of the embracing mechanism of the winter shoot control and flower promoting cutting terminal by the electric control system of the winter shoot control and flower promoting cutting terminal, and placing the embracing mechanism outside the trunk to be cut, and then controlling the embracing mechanism to embrace the trunk to be cut by the electric control system; controlling the cutting mechanism of the winter shoot control and flower promoting cutting terminal to perform cutting operation by the electric control system: driving the cutting knife to move radially to approach the trunk to be cut until the cutting knife is inserted into the trunk to a specified depth; at the same time, driving the cutting knife to move circumferentially by the circumferential driving mechanism to drive the cutting knife to cut the bark of the trunk in a ring shape; if the spiral ring stripping mode is performed, simultaneously driving the cutting knife to move axially by the axial driving mechanism to drive the cutting knife to cut the bark of the trunk in a spiral shape; (5) after cutting is completed, the electric control system controls the embracing mechanism to loosen the cut trunk, and then moves the winter shoot control and flower promoting cutting terminal away from the cut trunk.

[0009] In a preferred scheme of the present application, in step (2), the determination method of the cutting type is: If the litchi tree has a strong growth, a thick leaf canopy and a light pruning degree, the spiral ring stripping mode is suitable; If the litchi tree has a medium growth, a result tree that only grows one autumn shoot after fruiting or an old litchi tree, the ring cutting mode is suitable.

[0010] In a preferred scheme of the present application, in step (3), the cutting parameters of the spiral ring stripping mode and the ring cutting mode include cutting depth, cutting moving speed, cutting length, etc.

[0011] In a preferred scheme of the present application, in step (3), the cutting parameters of the spiral ring stripping mode further include a stripping opening width of 0.2cm-0.4cm, a number of turns of 1.2 turns-1.8 turns, a ring stripping spiral angle of 16 degrees-19 degrees, and a pitch equal to the diameter of the trunk.

[0012] In a preferred scheme of the present application, in step (4), the opening and closing operation method of the embracing mechanism is: The opening and closing driving motor drives the opening and closing transmission screw rod to rotate, drives the opening and closing transmission screw nut and the opening and closing moving frame to move linearly, and then the two half circular embracing installation pieces are synchronously and reversely turned out by the opening and closing transmission connecting rod, until the litchi tree to be cut can be put between the two half circular embracing installation pieces; The two half circular ring embracing mounting members are placed on the outside of the litchi tree to be cut, and the opening and closing transmission screw rod is reversely rotated by the opening and closing driving motor, and the two half circular ring embracing mounting members are synchronously and oppositely turned inwards by the opening and closing transmission connecting rod, until the two half circular ring embracing mounting members are just combined into a completed circular structure. The electric control system controls all the ring embracing clamping assemblies to perform clamping operation, the clamping wheel and the spring mounting frame are driven to be close to the trunk by the clamping electric cylinder, and then the clamping wheel is pressed on the trunk, so that clamping is realized; in this process, when the clamping wheel just contacts the surface of the trunk, the clamping electric cylinder continues to drive for a set distance, so that the clamping spring is compressed and deformed, and self-adaptive elastic compression is realized; in this way, the trunk is not hard pressed, the trunk is not damaged, and the outer contour of the trunk is self-adaptive, so that more accurate compression is realized.

[0013] In step (4), the specific cutting operation of the cutting mechanism is: The radial driving motor of the radial driving mechanism is driven to rotate by the electric control system, and then the cutting knife is moved radially close to the trunk by the radial transmission rack, until the cutting knife is inserted into the trunk to a specified depth; At the same time, the circumferential driving motor of the circumferential driving mechanism is driven to rotate, and the circumferential transmission gear remains stationary, the circumferential transmission gear includes two half circular gears fixedly arranged on the inner sides of the two half circular ring embracing mounting members, and the two half circular gears form a complete circumferential transmission gear; the circumferential transmission gear moves along the circumferential transmission gear, and then the profiling cutting assembly, the axial driving mechanism and the radial driving mechanism are synchronously moved in a circumferential direction; the radial driving mechanism is arranged on the profiling cutting assembly, the profiling cutting assembly is arranged on the axial driving mechanism, and the axial driving mechanism is arranged on the circumferential driving mechanism; at the same time of circumferential movement, the cutting knife cuts the trunk skin in a ring shape.

[0014] Further, if the spiral ring stripping mode is performed, the profiling cutting assembly is axially moved by the axial driving motor of the axial driving mechanism at the same time of circumferential movement, and the movement track of the cutting knife superimposed with the circumferential movement is spiral, so that the trunk skin is cut in a spiral shape.

[0015] Furthermore, the cutting mechanism is located inside the embracing mechanism. When the embracing mechanism is clamping the trunk to be cut, the contour cutting component gradually approaches the trunk. When the contour roller just touches the trunk surface, the clamping operation is not yet complete. The embracing mechanism continues to close, causing the contour spring to compress and deform until the clamping operation is completed. At this time, the contour spring elastically presses the contour roller against the trunk surface, and the relative position of the contour roller and the adjusted cutting blade remains unchanged. When the cutting blade and the contour roller move in a circle, the contour roller serves as the basic support point for the cutting blade and moves contour-following along the surface of the trunk, ensuring that the cutting depth of the cutting blade remains constant, further improving the cutting quality and obtaining better shoot control.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The cutting method of the present invention uses an automatic cutting method to cut the litchi tree, which not only has high work efficiency, but also has a more consistent cutting depth, which is conducive to obtaining better shoot control effect.

[0017] 2. The cutting method of the present invention uses an electric clamping mechanism to automatically clamp the tree trunk to be cut and fix it in a designated position for cutting. At the same time, it can prevent positional displacement during the cutting process, improve the cutting quality, and obtain better shoot control effect. Attached Figure Description

[0018] Figures 1-2 This is a three-dimensional structural diagram of the winter shoot control and flowering promotion cutting terminal in two different states of the method for controlling winter shoots and promoting flowering used in the cultivation of Xianjinfeng litchi according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the circumferential clamping assembly of the winter shoot control and flower-promoting cutting terminal of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the cutting mechanism and a semi-circular circumferential mounting component of the winter shoot control and flowering promotion cutting terminal of the present invention.

[0021] Figure 5 for Figure 4 A magnified view of X in the image.

[0022] Figure 6 This is a three-dimensional structural diagram of the cutting mechanism of the winter shoot control and flower-promoting cutting terminal of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the winter shoot control and flower promotion cutting terminal equipment of the present invention mounted on an automatic walking device. Detailed Implementation

[0024] In order for those skilled in the art to have a better understanding of the technical solutions of the present application, the present application will be further described below in conjunction with the embodiments and drawings, but the embodiments of the present application are not limited thereto. Embodiment 1

[0025] The winter-shoot-controlling and flower-promoting cutting method for planting Xianjin Feng litchi trees in the present embodiment adopts a handheld winter-shoot-controlling and flower-promoting cutting terminal to perform cutting operation, the winter-shoot-controlling and flower-promoting cutting terminal comprises a ring-encircling mechanism for automatically encircling a litchi tree, a cutting mechanism for automatically cutting the litchi tree, and an electric control system for controlling the ring-encircling mechanism and the cutting mechanism to work.

[0026] In combination Figures 1-2 , the ring-encircling mechanism comprises a ring-encircling support 1, two semicircular ring-encircling mounting members 2, ring-encircling clamping assemblies, and an opening and closing driving mechanism, the two semicircular ring-encircling mounting members 2 are hingedly connected at one end to the same rotation center of the ring-encircling support 1.

[0027] In combination Figure 3 , the ring-encircling clamping assemblies are provided in at least two groups, the ring-encircling clamping assemblies are arranged in a circumferential direction in a clamping state, each group of ring-encircling clamping assemblies comprises a clamping mounting bracket 3, a clamping wheel 4, a spring mounting bracket 5, a clamping spring 6, and a clamping electric cylinder 7; the clamping wheel 4 is rotationally connected to the clamping mounting bracket 3; one end of the spring mounting bracket 5 is fixedly connected to the telescopic rod of the clamping electric cylinder 7, the other end of the spring mounting bracket 5 is movably connected to the clamping mounting bracket 3, the clamping spring 6 is sleeved on the clamping mounting bracket 3, and both ends of the clamping spring 6 are abuttingly connected to the clamping mounting bracket 3 and the spring mounting bracket 5 respectively; the cylinder body of the clamping electric cylinder 7 is fixedly connected to the inner side wall of the semicircular ring-encircling mounting member 2.

[0028] In combination Figures 1-2 , the opening and closing driving mechanism comprises an opening and closing driving motor 8, an opening and closing transmission assembly, and an opening and closing moving bracket 9, the opening and closing driving motor 8 is arranged on the ring-encircling support 1; the opening and closing transmission assembly comprises an opening and closing transmission screw, an opening and closing transmission screw nut, and an opening and closing transmission connecting rod 10, the opening and closing transmission screw nut is fixedly connected to the opening and closing moving bracket 9, and the axis of the opening and closing transmission screw nut is perpendicular to the rotation center of the semicircular ring-encircling mounting member 2; both ends of the opening and closing transmission connecting rod 10 are hingedly connected to the opening and closing moving bracket 9 and the semicircular ring-encircling mounting member 2 respectively.

[0029] In combination Figures 4-6The cutting mechanism comprises a profiling cutting assembly, a circumferential driving mechanism for driving the profiling cutting assembly to move circumferentially, an axial driving mechanism for driving the profiling cutting assembly to move axially, and a radial driving mechanism for driving the profiling cutting assembly to move radially, the circumferential driving mechanism comprises a circumferential driving motor 11, a circumferential transmission assembly and a circumferential moving frame 12, the circumferential transmission assembly comprises a circumferential transmission gear ring and a circumferential transmission gear 13, the circumferential transmission gear ring comprises two half-circular gear rings 14, the two half-circular gear rings 14 are fixedly arranged on the inner sides of the two half-circular embracing mounting members 2 respectively, and the two half-circular gear rings 14 constitute a complete circumferential transmission gear ring in the embracing state; the circumferential transmission gear 13 is arranged on the output shaft of the circumferential driving motor 11; and the circumferential moving frame 12 is circumferentially movably arranged on the half-circular gear ring 14, and the circumferential driving motor 11 is arranged on the circumferential moving frame 12.

[0030] In combination Figures 4-6 , the axial driving mechanism comprises an axial driving motor 15, an axial transmission assembly and an axial moving frame 16, the axial driving motor 15 is fixedly arranged on the circumferential moving frame 12, the axial transmission assembly comprises an axial transmission screw rod and an axial transmission screw rod nut, the axial transmission screw rod nut is fixedly connected with the axial moving frame 16, and the axis of the axial transmission screw rod nut is parallel to the axis of the circumferential transmission gear ring.

[0031] In combination Figures 4-6 , the profiling cutting assembly comprises a cutting knife 17, a profiling roller 18, a profiling spring 19 and a profiling mounting frame 20, the cutting knife 17 is radially slidably arranged on the profiling mounting frame 20, one end of the profiling mounting frame 20 is slidably connected to the axial moving frame 16 through a sliding rod, and the profiling spring 19 is sleeved on the sliding rod, and the two ends of the profiling spring 19 are abutted against the axial moving frame 16 and the profiling mounting frame 20 respectively.

[0032] In combination Figures 4-6 , the radial driving mechanism comprises a radial driving motor 21 and a radial transmission assembly, the radial driving motor 21 is arranged on the profiling mounting frame 20, the radial transmission assembly comprises a radial transmission rack and a radial transmission gear, the radial transmission rack is integrally formed with the cutting knife 17, and the radial transmission gear is arranged on the output shaft of the radial driving motor 21.

[0033] In combination Figures 1-6 The winter shoot control and flower promotion cutting method for Xianjin Feng litchi planting of the embodiment comprises the following steps: (1) determining a litchi tree to be cut.

[0034] (2) judging the cutting type suitable for the litchi tree to be cut, the cutting type including a spiral ring stripping mode and a ring cutting mode; the judging method of the cutting type is: If the litchi tree is in a strong growth state, the leaf canopy is thick, and the pruning degree is light, the spiral ring stripping mode is suitable. If the litchi tree is in a medium growth state, the result tree only sprouts once after fruit picking, or the litchi tree is old, the ring cutting mode is suitable.

[0035] (3) setting the cutting type and its cutting parameters on the winter shoot control and flower promotion cutting terminal; the cutting parameters of the spiral ring stripping mode and the ring cutting mode include cutting depth, cutting moving speed, cutting length, etc.

[0036] The cutting parameters of the spiral ring stripping mode further include a stripping opening width of 0.2cm~0.4cm, a number of turns of 1.2 turns~1.8 turns, a spiral angle of ring stripping of 16 degrees~19 degrees, and a pitch equal to the diameter of the trunk.

[0037] (4) starting the winter shoot control and flower promotion cutting terminal, controlling the opening of the embracing mechanism of the winter shoot control and flower promotion cutting terminal by the electric control system of the winter shoot control and flower promotion cutting terminal, and placing the embracing mechanism outside the trunk to be cut, and then controlling the embracing mechanism to be clamped outside the trunk to be cut by the electric control system.

[0038] The electric control system controls the cutting mechanism of the winter shoot control and flower promotion cutting terminal to perform cutting operation: driving the cutting knife 17 to move radially to approach the trunk to be cut by the radial driving mechanism until the cutting knife 17 is inserted into the trunk to a specified depth; at the same time, driving the cutting knife 17 to move circumferentially by the circumferential driving mechanism to drive the cutting knife 17 to cut the trunk skin in a ring shape; if the spiral ring stripping mode is performed, the cutting knife 17 is driven to move axially by the axial driving mechanism to drive the cutting knife 17 to cut the trunk skin in a spiral shape.

[0039] (5) After cutting is completed, the electric control system controls the embracing mechanism to loosen the trunk on which cutting is completed, and then moves the winter shoot control and flower promotion cutting terminal away from the trunk on which cutting is completed.

[0040] Further, in combination with Figures 1-3 In step (4), the opening and closing operation method of the embracing mechanism is: The opening and closing driving motor 8 drives the opening and closing transmission screw rod to rotate, drives the opening and closing transmission screw nut and the opening and closing moving frame 9 to move linearly, and then the two half circular embracing installation pieces 2 are synchronously and reversely turned outward by the opening and closing transmission connecting rod 10 until the litchi tree to be cut can be put between the two half circular embracing installation pieces 2.

[0041] Put two half circular ring embrace mounting member 2 to the outside of the litchi tree to be cut, drive the opening and closing transmission screw rod to rotate reversely by opening and closing drive motor 8, drive two half circular ring embrace mounting member 2 to turn inwards synchronously by opening and closing transmission connecting rod 10, until two half circular ring embrace mounting member 2 just synthesize a completed circular structure.

[0042] Electric control system controls all ring embrace clamping assembly to perform clamping operation, drive clamping wheel 4 and spring mounting bracket 5 to approach the trunk by clamping electric cylinder 7, then realize clamping by clamping wheel 4 pressing on the trunk; in this process, when clamping wheel 4 just contacts the surface of the trunk, clamping electric cylinder 7 continues to drive for a set distance, so as to make clamping spring 6 compress and deform, realizing self-adaptive elastic compression; in this way, it will not hard extrude the trunk, causing additional damage to the trunk, and at the same time, it can also adapt to the outer contour of the trunk, realizing more accurate compression.

[0043] Further, in combination with Figures 4-6 In step (4), the specific cutting operation of the cutting mechanism is: Electric control system controls the radial drive motor 21 of the radial drive mechanism to drive the radial transmission gear to rotate, then drives the cutting knife 17 to move radially close to the trunk by the radial transmission rack, until the cutting knife 17 is inserted into the trunk to a specified depth.

[0044] At the same time, drive the circumferential transmission gear 13 to rotate by the circumferential drive motor 11 of the circumferential drive mechanism, and the circumferential transmission gear 13 cooperates with the circumferential transmission gear ring which remains stationary, the circumferential transmission gear ring includes two half circular gear rings 14 respectively fixedly arranged on the inner side of two half circular ring embrace mounting members 2, the two half circular gear rings 14 constitute a complete circumferential transmission gear ring at this time; the circumferential transmission gear 13 moves along the circumferential transmission gear ring, then drives the profiling cutting assembly, the axial drive mechanism and the radial drive mechanism to move synchronously; the radial drive mechanism is arranged on the profiling cutting assembly, the profiling cutting assembly is arranged on the axial drive mechanism, and the axial drive mechanism is arranged on the circumferential drive mechanism; at the same time of circumferential movement, the cutting knife 17 performs annular cutting on the trunk bark.

[0045] Further, if the spiral annular stripping mode is performed, at the same time of circumferential movement, the profiling cutting assembly is driven to move axially by the axial drive motor 15 of the axial drive mechanism, at this time, the movement track of the cutting knife 17 superimposed with circumferential movement is spiral, thereby realizing spiral cutting on the trunk bark.

[0046] Further, the cutting mechanism is arranged on the inner side of the embracing mechanism, and when the embracing mechanism is clamped against the trunk to be cut, the profiling cutting assembly gradually approaches the trunk to be cut; when the profiling roller 18 just contacts the surface of the trunk, the clamping operation is not completed yet, and the embracing mechanism continues to close, so that the profiling spring 19 is compressed and deformed, until the clamping operation is completed; at this time, the profiling spring 19 elastically presses the profiling roller 18 against the surface of the trunk, and the relative position between the profiling roller 18 and the adjusted cutting knife 17 remains unchanged; when the cutting knife 17 and the profiling roller 18 move in a circle, the profiling roller 18 serves as a basic support point of the cutting knife 17, and moves along the surface of the trunk, so that the cutting depth of the cutting knife 17 is constant, the cutting quality is further improved, and better tip control effect is obtained. Example 2

[0047] In combination Figure 7 Different from example 1, the tip control and flower promoting cutting terminal of the present embodiment is arranged on the mechanical arm 22, and the mechanical arm 22 is arranged on the electric walking mechanism 23; in cooperation with the visual positioning system, high-automation cutting operation can be realized. Specifically, the mechanical arm 22, the electric walking mechanism 23 and the visual positioning system can refer to the prior art.

[0048] The above is the preferred embodiment of the present application, but the embodiment of the present application is not limited by the above, and any change, modification, substitution, combination, simplification made without departing from the spirit and principle of the present application shall be equivalent replacement mode, and all shall be included in the protection scope of the present application.

Claims

1. A method for controlling winter shoots and promoting flowering in the cultivation of Xianjinfeng litchi, characterized in that, Includes the following steps: (1) Identify the litchi tree to be cut; (2) Determine the appropriate cutting type for the litchi tree to be cut. The cutting type includes spiral girdling and ring cutting. (3) Set the cutting type and cutting parameters on the winter shoot control and flower promotion cutting terminal; (4) Start the winter shoot control and flower promotion cutting terminal. The electric control system of the winter shoot control and flower promotion cutting terminal controls the opening of the embracing mechanism of the winter shoot control and flower promotion cutting terminal and places the embracing mechanism on the outside of the trunk to be cut. Then the electric control system controls the embracing mechanism to clamp the trunk to be cut. The electric control system controls the cutting mechanism of the winter shoot flowering cutting terminal to perform the cutting operation: the radial drive mechanism drives the cutting blade to move radially to approach the trunk to be cut until the cutting blade is inserted into the trunk to a specified depth; at the same time, the circumferential drive mechanism drives the cutting blade to move circumferentially, causing the cutting blade to make a ring cut on the trunk bark; if the spiral girdling method is performed, the axial drive mechanism drives the cutting blade to move axially, causing the cutting blade to make a spiral cut on the trunk bark. (5) After the cutting is completed, the electric control system controls the embracing mechanism to release the tree trunk that has been cut, and then moves the winter shoot-promoting flower cutting terminal away from the tree trunk that has been cut.

2. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 1, characterized in that, In step (2), the method for determining the cutting type is as follows: If the litchi tree is growing vigorously, has a thick canopy, and is lightly pruned, the spiral ring-barking method is suitable. If the lychee tree is of moderate growth, or is a fruit-bearing tree that only produces one autumn shoot after harvesting, or is an old lychee tree, the girdling method is suitable.

3. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 1, characterized in that, In step (3), the cutting parameters for both the spiral girdling method and the girdling method include cutting depth, cutting speed, and cutting length.

4. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 1, characterized in that, In step (3), the cutting parameters of the spiral girdling method also include a girdling width of 0.2cm to 0.4cm, a number of turns of 1.2 to 1.8, a girdling spiral angle of 16 degrees to 19 degrees, and a pitch equal to the diameter of the tree trunk.

5. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 1, characterized in that, In step (4), the opening and closing operation method of the encircling mechanism is as follows: The opening and closing drive motor drives the opening and closing transmission screw to rotate, which in turn drives the opening and closing transmission screw nut and the opening and closing moving frame to move linearly. Then, the opening and closing transmission connecting rod drives the two semi-circular ring mounting parts to flip outward in the opposite direction in a synchronized manner until the lychee tree to be cut can be placed between the two semi-circular ring mounting parts. Place the two semi-circular mounting pieces on the outside of the lychee tree to be cut. Drive the opening and closing drive motor to rotate the opening and closing transmission screw in the opposite direction. The opening and closing transmission connecting rod will cause the two semi-circular mounting pieces to rotate inward synchronously until the two semi-circular mounting pieces are combined to form a complete circular structure.

6. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 5, characterized in that, The electric control system controls all the surrounding clamping components to perform the clamping operation. The clamping cylinder drives the clamping wheel and spring mounting bracket to approach the tree trunk, and then the clamping wheel presses against the outside of the tree trunk to achieve clamping. During this process, when the clamping wheel just contacts the surface of the tree trunk, the clamping cylinder continues to drive a set distance, causing the clamping spring to compress and deform, achieving adaptive elastic clamping.

7. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 1, characterized in that, In step (4), the specific cutting operation of the cutting mechanism is as follows: The electric control system controls the radial drive motor of the radial drive mechanism to drive the radial transmission gear to rotate, and then the radial transmission rack carries the cutting blade to move radially closer to the tree trunk until the cutting blade is inserted into the tree trunk to a specified depth.

8. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 7, characterized in that, Simultaneously, the circumferential drive motor of the circumferential drive mechanism drives the circumferential transmission gear to rotate, while the circumferential transmission gear ring that meshes with the circumferential transmission gear remains stationary. This circumferential transmission gear ring includes two semi-circular gear rings respectively fixed inside the two semi-circular encircling mounting parts, which at this time form a complete circumferential transmission gear ring. The circumferential drive gear moves circumferentially along the circumferential transmission gear ring, thereby synchronously moving the contour cutting component, the axial drive mechanism, and the radial drive mechanism. The radial drive mechanism is mounted on the contour cutting component, the contour cutting component is mounted on the axial drive mechanism, and the axial drive mechanism is mounted on the circumferential drive mechanism. During the circumferential movement, the cutting blade performs a circular cut on the bark of the tree trunk.

9. The method for controlling winter shoots and promoting flowering in lychee cultivation according to claim 8, characterized in that, When performing spiral girdling, the contour cutting component is driven axially by the axial drive motor of the axial drive mechanism to move axially while moving in a circular motion, thereby performing spiral cutting on the bark of the tree trunk.

10. The method for controlling winter shoots and promoting flowering in the cultivation of Xianjinfeng litchi according to claim 8, characterized in that, The cutting mechanism is located inside the circumferential mechanism. When the circumferential mechanism is clamping the tree trunk to be cut, the contour cutting component gradually approaches the tree trunk. When the contour roller just touches the tree trunk surface, the clamping operation is not yet complete. The circumferential mechanism continues to close, causing the contour spring to compress and deform until the clamping operation is completed. At this time, the contour spring elastically presses the contour roller against the tree trunk surface, and the relative position of the contour roller and the adjusted cutting blade remains unchanged. When the cutting blade and the contour roller move in a circle, the contour roller serves as the basic support point for the cutting blade and moves contour-following along the surface of the tree trunk to ensure that the cutting depth of the cutting blade remains constant.

Images