Blade angle adjustable pruning machine

Abstract

The invention discloses a blade angle-adjustable pruning machine, which comprises a rack used for installing walking wheels so that the two sides of the pruning machine can walk on soil on the two sides of a tea tree; the cutter is used for pruning the branches; the lifting units are symmetrically arranged at the two ends of the cutter and connected with the rack; the cutter extends in the direction away from the walking direction of the pruning machine and is provided with a distribution unit, and the distribution unit comprises a covering plate, distribution pieces symmetrically arranged on the two sides of the covering plate and a plurality of distribution rods arranged on the distribution pieces. A reset spring is arranged between the distribution pieces on the two sides. A driving pull rope is arranged on the distribution piece; the driving pull rope is connected with a power unit; according to the pruning machine with the angle-adjustable blade, the horizontal inclination of the two sides of the cutter relative to the rack is adjusted through the lifting units on the two sides of the cutter, so that the pruning machine adapts to terrains of different heights of hilly lands, and the flatness of trimmed tea trees is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pruning machines, in particular to a pruning machine with adjustable blade angles. Background Art

[0002] Pruning machines are agricultural machinery used to prune plant branches, and tea trees need to be pruned evenly after the picking period, that is, the upper branches of the tea trees are cut evenly as a whole to enable them to survive the winter and grow better in the coming year.

[0003] Existing pruning machines for tea trees usually use hand-push pruning machines, such as the seedling pruning machine with patent number CN220173866U previously applied by the applicant, which is also used to prune tea trees evenly. However, when using the above pruning machines to prune tea trees, there are the following disadvantages and shortcomings: 1. When pruning tea trees in hilly areas, the height difference between the walking wheels on both sides will be caused due to the high and low terrain of the hills, which will cause the knife frame to tilt. At this time, the pruned tea trees will also have an inclined surface on the surface, resulting in uneven subsequent growth, which is not convenient for mechanized harvesting; 2. When pruning, the pruned tea tree branches fall to the rear of the walking direction of the pruning machine, directly pressing on the pruned tea tree, which is inconvenient for the collection and cleaning of discarded branches in the later stage. Summary of the invention

[0004] The invention aims at solving the deficiencies in the prior art and provides a pruning machine with adjustable blade angle.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a pruning machine with adjustable blade angle, comprising The frame is used to install the walking wheels so that the two sides of the pruning machine can walk on the soil on both sides of the tea trees; A knife for pruning branches; The lifting unit is symmetrically arranged at both ends of the tool and connected to the frame, so that both ends of the tool can be lifted and lowered on one side relative to the frame; The cutter is provided with a distribution unit extending away from the walking direction of the pruning machine, and the distribution unit includes a cover plate, distribution parts symmetrically arranged on both sides of the cover plate, and a plurality of distribution rods arranged on the distribution parts; A return spring is provided between the distribution members on both sides; The distribution member is provided with a driving pull rope; The driving pull rope is connected to the power unit and is used to drive the distribution member to slide horizontally to distribute the trimmed waste branches on the covering plate to both sides.

[0006] In the above solution, preferably, the cover plate is provided with a sliding groove for guiding the shifting rod to slide horizontally.

[0007] In the above scheme, preferably, the distribution member includes a frame rod arranged in parallel and a connecting rod connected to the frame rod, a pull ring is sleeved on the connecting rod, and the driving pull rope is connected to the pull ring.

[0008] In the above scheme, preferably, the frame is provided with a power source for driving the tool, the power source includes an output shaft, the output shaft is connected to a driving wheel, one end of the driving rope is connected to the pull ring, and the other end is connected to the outer edge of the driving wheel.

[0009] In the above scheme, preferably, the tool includes a tool holder, and the tool holder is provided with a first guide plate and a second guide plate for guiding the driving rope.

[0010] In the above scheme, preferably, frame rods are passed through both ends of the connecting rod and then extended to form guide rods, and guide blocks matching with the guide rods are provided on the covering plate, and guide grooves for the guide rods to slide are provided on the guide blocks.

[0011] In the above scheme, preferably, the guide groove includes a transverse groove, a descending groove, a reset groove and an ascending groove, and the transverse groove, the descending groove, the reset groove and the ascending groove are connected at their ends to form an annular groove body.

[0012] In the above scheme, preferably, a limit piece is rotatably provided on one side of the guide block at the connection between the ascending groove and the transverse groove, one end of the limit piece is rotatably connected to the guide block wall body away from the guide groove, and the other end extends toward the guide groove; A limiting block abutting against the limiting member is provided on one side of the guide block away from the transverse displacement groove.

[0013] In the above solution, preferably, the connecting rods are provided in at least one group, and the number of the guide blocks is the same as the connecting rods.

[0014] In the above scheme, preferably, a mounting piece cooperating with the lifting unit is provided on the frame, the mounting piece is rotatably connected to the upper end of the lifting unit through a pin, and the lifting end of the lifting unit is connected to the tool.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a pruning machine with adjustable blade angle, which can adjust the horizontal inclination of both sides of the cutter relative to the frame through lifting units on both sides of the cutter, so as to adapt to different high and low terrains in hilly areas, thereby improving the flatness of the tea trees after pruning; In addition, distribution units are symmetrically arranged on the pruning machine to gradually distribute the pruned waste branches to both sides of the tea tree, which is convenient for the subsequent cleaning and sorting of the waste branches, greatly improving the overall efficiency of tea tree pruning and reducing manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure behind the hidden cover plate of the present invention.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0019] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the distribution member of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the guide block of the present invention.

[0022] Figure 7 It is a schematic diagram of the motion trajectory between the guide rod and the guide groove of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1-Figure 7 .

[0024] A pruning machine with adjustable blade angle comprises a frame 1 and a cutter 2 floatingly arranged on the frame 1, wherein both sides of the frame 1 are provided with running wheels, the frame 1 adopts a gantry frame type frame, and the cutter 2 is located at the lower part of the frame 1 and between the running wheels on both sides.

[0025] The frame 1 is symmetrically provided with columns on both sides, and the two ends of the tool 2 are connected to the columns on the corresponding sides through the lifting unit 3. The walking wheels travel on both sides of the tea tree when the pruning machine is in use. After the pruning mode is turned on, the tea tree is cut evenly by the tool 2.

[0026] The lifting unit 3 adopts a lifting push rod, and its driving form can use a pneumatic push rod, an electric push rod, etc., and a mounting member 301 is provided on the column. The mounting member 301 is fixed to the column by welding or fastening, and the mounting member 301 is rotatably connected to one end of the lifting unit 3 by a pin shaft 302. Figure 3 As shown, the lifting end of the lifting unit 3 is fixedly connected to the tool 2. When in use, the height angles of the two ends of the tool 2 are adjusted by controlling the lifting of the lifting unit 3. Initially, if the ground on both sides of the tea tree is in a horizontal state, the tool 2 is Figure 3As shown, it is also in a horizontal position. At this time, the tool 2 shears the tea tree so that the surface of the sheared tea tree is level with the ground. If the ground on both sides of the tea tree is uneven, the lifting and lowering of the lifting units 3 on both sides are controlled to make the two sides of the tool 2 tilt to a certain extent to adapt to the ground, thereby ensuring the flatness of the surface of the tea tree after shearing.

[0027] The tool 2 includes a tool holder 201, which is used to connect with the lifting unit 3. The shearing part of the tool 2 is located at the front end of the tool holder 201, that is, one end in the direction of travel of the pruning machine. The tool 2 is extended away from the direction of travel of the pruning machine and is provided with a distribution unit 4, which can distribute the tea branches sheared by the tool 2 to both sides. The distribution unit 4 is arranged on the tool holder 201.

[0028] The distribution unit 4 includes a covering plate 401, distribution pieces 402 symmetrically arranged on both sides of the covering plate 401, and a plurality of distribution rods 403 arranged on the distribution pieces 402. The distribution pieces 402 are arranged below the covering plate 401 so as to be hidden by the covering plate 401. The distribution rods 403 are passed through the covering plate 401 upwards and are placed above the covering plate 401. The covering plate 401 is provided with a sliding groove 406 for the distribution rods 403 to pass through and slide laterally.

[0029] The distribution lever 403 is as follows Figure 2 and Figure 5 As shown, the dividing rods 403 are evenly distributed laterally on the dividing member 402. The spacing between adjacent dividing rods 403 and the number of dividing rods 403 can be adaptively adjusted according to the model size and dividing efficiency of the pruning machine. The dividing member 402 includes a frame rod 4001 arranged in parallel and a connecting rod 4002 connected to the frame rod 4001. The connecting rod 4002 is provided in at least one group. In this embodiment, two connecting rods are provided. Figure 5 As shown, it is arranged on both sides of the dividing member 402 and is fixedly connected to the frame rod 4001, forming a stable rectangular frame as a whole.

[0030] The dividing rod 403 is fixed to the upper surface of the frame rod 4001, that is, the frame rod 4001 is placed under the covering plate 401, the lower end of the dividing rod 403 is fixed to the frame rod 4001, and the upper end is penetrated by the covering plate 401; the dividing parts 402 on both sides slide synchronously relative to each other away from the center of the covering plate 401, and the branches placed on the covering plate 401 are moved outward through the dividing rod 403, so that the cut tea tree branches will not accumulate in the central area of ​​the cut tea tree.

[0031] The dividing member 402 is provided with a driving rope 405 for driving the dividing member 402 to slide horizontally. Specifically, a pull ring 4003 is sleeved on the connecting rod 4002 on the side of the dividing member 402 close to the column, and the driving rope 405 is connected to the pull ring 4003. The frame 1 is provided with a power source 101 for driving the tool 2. The power source 101 can be an engine, a driving motor or an electric motor, etc., which is a prior art; the power source 101 includes an output shaft 102, and the output shaft 102 is fixedly connected to a driving wheel 103. One end of the driving rope 405 is connected to the pull ring 4003, and the other end is connected to the outer edge of the driving wheel 103. When the driving wheel 103 rotates, the dividing member 402 can be intermittently driven to slide through the connection point between the outer edge and the rope 405; in order to realize the reciprocating sliding of the dividing member 402, a reset spring 404 is provided between the dividing members 402 on both sides. Figure 5 As shown, the two ends of the return spring 404 are respectively hooked on the connecting rods 4002 of the dividing members 402 on both sides.

[0032] The tool holder 201 is provided with a first guide plate 202 and a second guide plate 203 for guiding the driving pull rope 405. The first guide plate 202 is provided on the tool holder 201 close to the side of the dividing piece 402, and the second guide plate 203 is provided on the tool holder 201 close to the side of the power source 101. A flexible sleeve covering the pull rope 405 is provided between the first guide rod 202 and the second guide rod 203. When the power source 101 drives the tool 2 to shear the tea tree, the output shaft 102 rotates synchronously, driving the dividing pieces 402 on both sides to slide back and forth synchronously to divide the sheared tea tree branches.

[0033] In order to realize the sliding of the dividing member 402 along the track, and after sliding toward the column side, the dividing rod 403 is hidden in the covering plate 401 when it is reset, so as to prevent the dividing rod 403 from interfering with the tea tree branches after the transverse movement when it is reset, in this embodiment, the frame rods 4001 are penetrated at both ends of the connecting rod 4002 and then extended to form guide rods 4004, and the lower surface of the covering plate 401 is fixed with a guide block 4005 matched with the guide rod 4004, and the guide block 4005 is provided with a guide groove 4006 for the guide rod 4004 to slide, that is, the end of the guide rod 4004 is placed in the guide groove 4006, as shown in FIG. Figure 5-Figure 7 shown.

[0034] The guide groove 4006 includes a transverse groove 11, a descending groove 12, a reset groove 13 and an ascending groove 14, and the transverse groove 11, the descending groove 12, the reset groove 13 and the ascending groove 14 are connected at the ends to form an annular groove body. Figure 7 As shown, the guide blocks 4005 on both sides cooperating with the distribution member 402 are arranged in a mirror image. Figure 7 In this embodiment Figure 3The guide block corresponding to the left-hand side distribution member 402 is initially located at the guide rod 4004. Figure 7 At the right end of the transverse groove 11 shown, when the distribution member 402 is pulled to the left and moved transversely, the guide rod 4004 moves along the movement trajectory of the transverse groove 11, the descending groove 12, the reset groove 13 and the ascending groove 14 in sequence. When the guide rod 4004 is located at the connection between the descending groove 12 and the reset groove 13, the distribution member 402 is lowered as a whole, causing the distribution rod 403 to drop below the covering plate 401 or close to the covering plate 401 to prevent the rod end from interfering with the sheared branches when sliding and resetting along the reset groove 13.

[0035] like Figure 3-Figure 4 As shown, one end of the pull rope 405 is connected to the pull ring 4003, and the other end is stretched downwardly and tilted away from the dividing member 402 and then passed through the first guide plate 202.

[0036] The guide block 4005 is located at one side of the connection between the ascending groove 14 and the transverse groove 11 and is rotatably provided with a limiting member 5, such as Figure 6-Figure 7 As shown, one end of the limit member 5 is rotatably connected to the wall of the guide block 4005 away from the side of the guide groove 4006 through a rotating shaft, and the other end extends toward the side of the guide groove 4006; the side of the guide block 4005 away from the transverse groove 11 is provided with a limit block 6 against the limit member 5, so that the guide rod 4004 is located Figure 7 When the guide rod 4004 is in the state, it can only move toward one side of the transverse groove 11 after being subjected to the pulling force, and is supported by the limit member 5 in the opposite direction. The movement trajectory of the guide rod 4004 is as follows: Figure 7 Indicated by arrow direction.

[0037] The number of the guide blocks 4005 is the same as that of the connecting rods 4002, thereby improving the stability of the entire distribution member 402 during movement. In this embodiment, two groups of connecting rods 4002 are preferably provided, and after the distribution member 403 cooperates with the guide blocks 4005, its frame rod 4001 is arranged parallel to the surface of the cover plate 401, and when the distribution member 403 moves back and forth, the axis of the frame rod 4001 is always in a state of being parallel or nearly parallel to the cover plate 401.

[0038] Method for using the above-mentioned pruning machine with adjustable blade angle: when using, place the walking wheels on both sides of the frame 1, observe the horizontal state between the cutter 2 and the ground, when the ground on both sides has a high and low inclination angle, adjust the height of the two ends of the cutter 2 by adjusting the lifting unit 3, so that the cutter 2 is horizontal when observing, and the lifting unit 3 on the corresponding side can be controlled by the electric button set on the corresponding side. At this time, the lifting unit 3 can be replaced by an electric push rod to lift the two ends of the cutter 2, and the surface of the tea tree cut by the cutter 2 is flat; Then the pruning machine is manually pushed to move. When the pruning machine is working, the output shaft 102 rotates, driving the driving wheel 103 to rotate, and the driving wheel 103 pulls the dividing member 402 back and forth through the pull rope 405 to slide, so that the dividing rod 403 slides on the covering plate 401, and the branches falling on the covering plate 401 are divided to both sides. At the same time, the dividing member 402 moves along the track of the guide groove 4006 during the reciprocating sliding process. When resetting, the dividing rod 403 descends to the bottom of the covering plate 401 through the descending groove 12 and is hidden, so as to prevent the dividing member 402 from contacting the branches on the covering plate 401 when sliding along the reset groove 13, and pushing it back. That is, the sheared branches can only be divided to both sides of the tea tree by the dividing rod 403, so as to facilitate the subsequent collection and sorting of waste branches.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pruning machine with adjustable blade angle, characterized in that: include A frame (1) is used to mount running wheels so that the two sides of the pruning machine can run on the soil on both sides of the tea trees; A cutter (2) for pruning branches; The lifting units (3) are symmetrically arranged at two ends of the tool (2) and connected to the frame (1), so that the two ends of the tool (2) can be lifted and lowered on one side relative to the frame (1); The cutter (2) is provided with a distribution unit (4) extending away from the walking direction of the pruning machine, and the distribution unit (4) comprises a covering plate (401), distribution pieces (402) symmetrically arranged on both sides of the covering plate (401), and a plurality of distribution rods (403) arranged on the distribution pieces (402); A return spring (404) is provided between the distribution members (402) on both sides; The distribution member (402) is provided with a driving pull rope (405); The driving pull rope (405) is connected to the power unit and is used to drive the distribution member (402) to slide horizontally to distribute the trimmed waste branches on the covering plate (401) to both sides.

2. A pruning machine with adjustable blade angle according to claim 1, characterized in that: The cover plate (401) is provided with a sliding groove (406) for guiding the distribution rod (403) to slide horizontally.

3. A pruning machine with adjustable blade angle according to claim 1, characterized in that: The distribution member (402) comprises a frame rod (4001) arranged in parallel and a connecting rod (4002) connected to the frame rod (4001); a pull ring (4003) is sleeved on the connecting rod (4002); and the driving pull rope (405) is connected to the pull ring (4003).

4. A pruning machine with adjustable blade angle according to claim 3, characterized in that: The frame (1) is provided with a power source (101) for driving the tool (2), the power source (101) comprising an output shaft (102), the output shaft (102) being connected to a driving wheel (103), one end of the driving pull rope (405) being connected to the pull ring (4003), and the other end being connected to the outer edge of the driving wheel (103).

5. A pruning machine with adjustable blade angle according to claim 4, characterized in that: The tool (2) comprises a tool holder (201), and a first guide plate (202) and a second guide plate (203) for guiding a driving pull rope (405) are provided on the tool holder (201).

6. The pruning machine with adjustable blade angle according to claim 3, characterized in that: The two ends of the connecting rod (4002) are penetrated by the frame rods (4001) and then extended to form guide rods (4004). The cover plate (401) is provided with guide blocks (4005) that match the guide rods (4004). The guide blocks (4005) are provided with guide grooves (4006) for the guide rods (4004) to slide.

7. The pruning machine with adjustable blade angle according to claim 6, characterized in that: The guide groove (4006) comprises a transverse groove (11), a descending groove (12), a reset groove (13) and an ascending groove (14), and the transverse groove (11), the descending groove (12), the reset groove (13) and the ascending groove (14) are connected at their ends to form an annular groove body.

8. The pruning machine with adjustable blade angle according to claim 7, characterized in that: A limiting member (5) is rotatably provided on one side of the guide block (4005) at the connection point between the ascending groove (14) and the transverse groove (11); one end of the limiting member (5) is rotatably connected to the wall of the guide block (4005) away from the guide groove (4006), and the other end extends toward the guide groove (4006); A limiting block (6) abutting against the limiting member (5) is provided on the side of the guide block (4005) away from the transverse displacement groove (11).

9. The pruning machine with adjustable blade angle according to claim 8, characterized in that: The connecting rods (4002) are provided in at least one group, and the number of the guide blocks (4005) is the same as the connecting rods (4002).

10. A pruning machine with adjustable blade angle according to any one of claims 1 to 9, characterized in that: The frame (1) is provided with a mounting member (301) that matches the lifting unit (3); the mounting member (301) is rotatably connected to the upper end of the lifting unit (3) via a pin shaft (302); and the lifting end of the lifting unit (3) is connected to the tool (2).

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