Tea Pruning Machine with Telescopic Adjustment Mechanism and Its Pruning Process

Abstract

The present invention discloses a tea pruning machine with a telescopic adjustment mechanism and a pruning process thereof, comprising a gripping portion for an operator to grip and manipulate; a driving unit for driving the pruning machine to perform pruning operations; and a pruning tool which is transmission-connected with the driving unit for pruning branches and leaves of tea leaves; the gripping portion comprises a frame, on which a support plate for supporting the pruned tea tree is provided; the support plate is provided with a plurality of walking units which can be adjusted lateraly and telescopically; the walking units are transmission-connected with the driving unit, and after being driven, the pruning machine is made to crawl on the surface of the pruned tea tree; the present invention provides a tea pruning machine with a specific telescopic adjustment mechanism, by arranging the walking unit on the pruning machine, the pruning machine can crawl on the surface of the pruned tea tree when pruning is desired, thereby saving manual labor.

Description

Technical Field

[0001] The invention relates to the technical field of tea leaf trimmers, in particular to a tea leaf trimmer with a telescopic adjustment mechanism and a trimming process thereof. Background Art

[0002] Tea pruning machine is a common tool used to prune tea tree branches and leaves. After the tea picking season is over, the tea trees need to be pruned evenly to ensure better growth next year.

[0003] Existing tea pruning machines usually use manual handheld or hand-pushed scissors to shear tea branches and leaves. During the pruning process, they have the following disadvantages and drawbacks:

[0004] Pruning requires a lot of manpower and has a low pruning efficiency. If walking pruning equipment is used instead, the uneven ground will cause the pruning equipment to tilt synchronously, thus failing to achieve the flatness of manual pruning. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a tea pruning machine with a telescopic adjustment mechanism and a pruning process thereof, which saves a lot of labor for operators when pruning tea leaves and improves pruning efficiency.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a tea pruning machine with a telescopic adjustment mechanism, comprising

[0007] The grip part is for operators to hold and control;

[0008] A driving unit, driving the trimmer to perform trimming operations; and

[0009] A pruning tool is connected to the driving unit for pruning the branches and leaves of the tea leaves;

[0010] The gripping part comprises a frame, and the frame is provided with a support plate for supporting the pruned tea tree;

[0011] The support plate is provided with a plurality of walking units which can be adjusted laterally telescopically;

[0012] The walking unit is in transmission connection with the driving unit, and after being driven, the pruning machine is made to crawl on the surface of the pruned tea trees.

[0013] In the above solution, preferably, the walking unit includes a first walking wheel and a second walking wheel, and a walking belt is provided between the first walking wheel and the second walking wheel.

[0014] In the above scheme, preferably, a driving shaft connected to the first running wheel and a driven shaft connected to the second running wheel are rotatably provided on the frame;

[0015] The drive shaft is in transmission connection with the drive unit;

[0016] The traveling unit is adjustably and slidably arranged on the drive shaft and the driven shaft.

[0017] In the above solution, preferably, a notch matching with the traveling unit is provided on the support plate.

[0018] In the above solution, preferably, the drive unit includes an output shaft and an intermediate shaft arranged on the frame and in transmission connection with the output shaft, and the intermediate shaft is in transmission connection with the drive shaft through a gear unit.

[0019] In the above solution, preferably, a speed change assembly is arranged on the intermediate shaft, and the speed change assembly includes a first speed change wheel and a second speed change wheel rotatably sleeved on the intermediate shaft;

[0020] The first speed change wheel and the second speed change wheel are in transmission connection with the output shaft through a transmission belt.

[0021] In the above solution, preferably, a sliding key is arranged on the intermediate shaft, and a driving push rod for driving the sliding key to slide is arranged on the frame;

[0022] After the driving push rod drives the sliding key to slide, the intermediate shaft can be respectively matched with the first speed change wheel or the second speed change wheel.

[0023] In the above solution, preferably, a detection unit is arranged at the forward end of the tea pruning machine in the forward direction of the pruning machine, the detection unit includes a distance detector, and the distance detector is electrically connected with the driving push rod.

[0024] In the above solution, preferably, the detection unit includes a detection frame, the distance detector is slidably arranged on the detection frame, a button matching with the distance detector is arranged on the detection frame, and the button is electrically connected with the drive unit and reverses the output shaft after being triggered.

[0025] In the above solution, preferably, a tea pruning process using a tea pruning machine with a telescopic adjustment mechanism to prune tea is as follows:

[0026] S1: The operator holds the tea pruning machine through the holding part and prunes the branches and leaves of the tea through the pruning cutter;

[0027] S2: After the pruning cutter prunes the tea, the traveling unit is placed on the upper surface of the pruned tea tree. While the pruning cutter continues to prune, the pruning machine as a whole crawls on the upper surface of the tea tree through the traveling unit;

[0028] S3: The distance detector on the detection unit detects the distance to the upper surface of the untrimmed tea tree, thereby adjusting the cooperation relationship between the intermediate shaft and the speed change component by driving the push rod to adjust the rotation speed of the drive shaft and change the traveling speed of the traveling unit.

[0029] S4: According to the width of the tea tree, the distance between adjacent traveling units is adjusted by the telescopic sliding of the traveling unit relative to the drive shaft and the driven shaft to adapt to tea trees of different widths.

[0030] The beneficial effects of the present invention are as follows: The present invention provides a tea leaf pruning machine with a specific telescopic adjustment mechanism. By setting a traveling unit on the pruning machine, the pruning machine can crawl on the surface of the pruned tea tree when pruning is needed, saving labor.

[0031] At the same time, the traveling unit can be telescopically adjusted laterally to adapt to tea trees of different widths, making the pruning machine more stable when crawling on the tea tree.

[0032] In addition, the present invention also provides a pruning process for pruning tea leaves by a tea leaf pruning machine with a specific telescopic adjustment mechanism, thereby realizing efficient and rapid pruning of tea leaves, greatly improving the efficiency of manual pruning, and ensuring the flatness of pruning. Description of the Drawings

[0033] Figure 1 It is a schematic front view structure diagram of the present invention.

[0034] Figure 2 It is a schematic three-dimensional structure diagram of the connection part between the driving unit and the speed change component of the present invention.

[0035] Figure 3 It is an exploded three-dimensional view of the speed change component of the present invention.

[0036] Figure 4 It is a schematic three-dimensional structure diagram of the detection unit of the present invention.

[0037] Figure 5 It is a schematic three-dimensional structure diagram of the traveling unit of the present invention.

[0038] Figure 6 It is of the present invention Figure 1 The enlarged structure diagram at A in.

[0039] Figure 7 It is a schematic connection structure diagram of the conveying component and the frame body of the present invention. Detailed Embodiments

[0040] The following further describes the present invention in detail in conjunction with the drawings and specific embodiments: Refer to Figures 1 - 7 。

[0041] The tea leaf trimmer with a telescopic adjustment mechanism comprises a gripping portion 1 arranged on one side, through which an operator holds the tea leaf trimmer, and control components such as a switch assembly are arranged on the gripping portion 1, so that when in use, the operator controls and holds the entire trimmer through the gripping portion 1.

[0042] The gripping part 1 comprises a frame 101, one end of which is fixedly connected to the gripping part 1, and the other end of which extends to one side of the gripping part 1 to form a narrow and long frame. A trimming tool 3 is arranged on the frame 101, and the trimming tool 3 is arranged on one side of the frame 101 in the direction of travel when the trimmer is in operation. Figure 1 shown.

[0043] The pruning tool 3 is connected to the driving unit 2 in a transmission manner. The pruning tool 2 is a reciprocating shearing tool, which is a conventional setting in the field and will not be elaborated on here. The driving unit 2 drives the pruning tool 2 to reciprocate and shear, thereby achieving pruning of tea tree branches and leaves.

[0044] The front end of the frame 101 is provided with a pruning tool 3, and the bottom is provided with a support plate 102 for supporting the upper surface of the pruned tea tree. The support plate 102 is laterally provided with a plurality of groups of lateral telescopically adjustable walking units 4, such as Figure 1 As shown, the walking unit 4 includes a first walking wheel 401 and a second walking wheel 402, and the first walking wheel 401 and the second walking wheel 402 are connected by a walking belt 403; the frame 101 is provided with a driving shaft 103 for installing the first walking wheel 401 and a driven shaft 104 for installing the second walking wheel 402.

[0045] The two ends of the driving shaft 103 and the driven shaft 104 are rotatably arranged on both sides of the frame 101, and the inner hole of the first walking wheel 401 is slidably arranged on the driving shaft 103. Preferably, the cooperation adopts the cooperation of non-circular hole and non-circular shaft, so that the driving shaft 103 drives the first walking wheel 401 to rotate, and the first walking wheel 401 can also slide laterally relative to the driving shaft 103; specifically, the driving shaft 103 and the first walking wheel 401 cooperate with each other. The section adopts a non-circular shaft, such as a hexagonal shaft, and the inner hole of the first walking wheel 401 is provided with a non-circular hole, such as a hexagonal hole, so as to achieve the above effect; the cooperation between the second walking wheel 402 and the driven shaft 104 is the same as the cooperation between the first walking wheel 401 and the driving shaft 103, and no further details are given; through the above cooperation, the walking unit 4 as a whole can realize sliding adjustment relative to the driving shaft 103 and the driven shaft 104.

[0046] The drive shaft 103 is in transmission connection with the drive unit 2, so that when the drive unit 2 works, it synchronously drives the drive shaft 103 to rotate, realizing the walking of the walking unit 4; a notch 105 matched with the walking unit 4 is arranged on the support plate 102, the lower bottom surface of the walking unit 4 is placed in the notch 105, and the surface of the walking belt 403 at the lower bottom surface of the walking unit 4 is lower than the lower end surface of the support plate 102, so that when the trimming machine trims, the walking belt 403 is in direct contact with the upper surface of the trimmed tea tree, realizing the action that the walking unit 4 drives the trimming machine to crawl on the tea tree.

[0047] Both sides of the notch 105 are wider than both sides of the walking unit 4, providing a certain space for the lateral movement of the walking unit 4. After the lateral movement of the walking unit 4 is adjusted, the distance between adjacent walking units 4 can be adjusted. When the overall width of the tea tree is relatively wide, the distance between adjacent walking units 4 can be increased, so that the whole trimming machine walks more stably on the upper surface of the tea tree; in addition, multiple walking units 4 can also be added to realize the stability of the trimming machine walking. In this embodiment, taking 4 groups of walking units 4 as an example, specific adjustments can be made adaptively according to the overall length and mass of the trimming machine.

[0048] As Figure 5 shown, to realize the lightweight of the whole machine, the middle walls of the first walking wheel 401 and the second walking wheel 402 are hollowed out and strengthened with ribs, reducing its mass while ensuring the strength, and at the same time, lightweight materials such as ABS or engineering plastics are used for production; in addition, in this embodiment, the support plate 102 is also made of wear-resistant plastics such as engineering plastics, and the specific material can be adjusted adaptively according to the conventional selection of those skilled in the art, and no further limitation is made here.

[0049] The drive unit 2 includes an output shaft 201 and an intermediate shaft 202 arranged on the frame 101 and in transmission connection with the output shaft 201. As Figures 1 - 3 and Figure 6 shown, the output shaft 201 and the intermediate shaft 202 are in transmission connection through a transmission belt 503. The intermediate shaft 202 is rotatably arranged on the frame 101, and a first bevel gear is arranged at its lower end after passing through the mounting plate of the frame 101. A second bevel gear meshing with the first bevel gear is fixedly arranged at the end of the drive shaft 103 on one side of the intermediate shaft 202, so that the power of the output shaft 201 is transmitted to the drive shaft 103 through the intermediate shaft 202, realizing the counterclockwise rotation of the drive shaft 103 along the Figure 1 shown direction, and making the walking unit 4 walk in the advancing direction of the trimming machine.

[0050] The first bevel gear and the second bevel gear constitute a gear unit 203. The first bevel gear is fixed to the lower end of the intermediate shaft 202. After the trimmer is started normally, the output shaft 201 rotates to transmit power to the drive shaft 103, so that it moves in the direction of the trimmer. When the output shaft 201 is reversed, the drive shaft 103 drives the walking unit 4 to move in the direction of the trimmer. Figure 1 The direction shown is clockwise, so that the mower moves backward in the direction of travel.

[0051] To achieve lightweight of the whole machine, the gear unit 203, the driving shaft 103 and the driven shaft 104 can all be made of lightweight materials, such as aluminum, engineering plastics and other metal or non-metal lightweight materials.

[0052] In this embodiment, when the tea leaves and branches pruned by the trimmer are deeper, that is, the deeper they are below the surface of the tea leaves, the thicker the pruned branches are, the greater the pruning resistance is. At this time, the trimming speed of the trimmer needs to be appropriately reduced. In order to appropriately reduce the walking speed of the walking unit 4 when pruned thicker branches, a speed change assembly 5 is arranged on the intermediate shaft 202 in this embodiment. Specifically, the speed change assembly 5 includes a first speed change wheel 501 and a second speed change wheel 502 rotatably mounted on the intermediate shaft 202; the first speed change wheel 501 and the second speed change wheel 502 are connected to the output shaft 201 through a transmission belt 503, the wheel diameter of the first speed change wheel 501 is larger than that of the second speed change wheel 502, and the transmission belt 503 includes a large wheel belt connected to the first speed change wheel 501 and a small wheel belt connected to the second speed change wheel 502. The above-mentioned transmission connection can be connected by a belt and pulley, or by a synchronous wheel and synchronous belt, which will not be described in detail here.

[0053] The intermediate shaft 202 is provided with a sliding key 504, and the intermediate shaft 202 is provided with a long key groove, and the sliding member 504 is slidably arranged on the long key groove; the inner holes of the first speed change wheel 501 and the second speed change wheel 502 are both provided with key holes that can be matched with the sliding member 504, and the upper end of the sliding member 504 is provided with a convex key 506 that reciprocates with the above-mentioned key hole, that is, by sliding the sliding key 504 in the long key groove, the convex key 506 is respectively matched with the first speed change wheel 501 and the second speed change wheel 502, as shown in FIG. Figure 3 As shown; when the convex key 506 cooperates with the first speed wheel 501, the output shaft 201 transmits power to the intermediate shaft 202 through the first speed wheel 501. At this time, the transmission speed of the intermediate shaft 202 is relatively low, thereby reducing the traveling speed of the walking unit 4; when the convex key 506 cooperates with the second speed wheel 502, the output shaft 201 transmits power to the intermediate shaft 202 through the second speed wheel 502. At this time, the transmission speed of the intermediate shaft 202 is relatively high, thereby increasing the traveling speed of the walking unit 4; initially, the convex key 506 is in a state of cooperating with the second speed wheel 502.

[0054] A driving push rod 505 for driving the sliding key 504 to slide is provided on the frame body 101. The driving push rod 505 is a micro electric push rod. Specifically, a convex key 506 is provided at the upper end of the sliding key 504, and a driving groove 507 is provided at the lower end. A driving plate 508 is rotatably sleeved on the intermediate shaft 202, and the inner hole of the driving plate 508 is rotationally and snap-connected with the driving groove 507; the driving rod end of the driving push rod 505 is fixedly connected with the driving plate 508, and the driving rod seat is fixed on the frame body 101. After the driving push rod 505 is started, the sliding key 504 slides, and the convex key 506 on it cooperates with the first speed change wheel 501, thereby reducing the speed of the intermediate shaft 202.

[0055] At the forward end of the trimmer when it advances, the frame body 101 is provided with a detection unit 6 extending forward. The detection unit 6 includes a detection frame 602 fixed on the frame body 101. The lower end of the detection frame 602 is fixed on the frame body 101, extends upward for a certain distance, and then extends toward the forward end of the trimmer. A distance detector 601 is installed at the end of its front end. As Figure 4 shown, the distance detector 601 is used to detect the distance between it and the upper surface of the untrimmed tea tree. When it receives the signal from the tea tree surface, it means that the trimming depth has reached the depth for speed reduction at this time, thereby triggering the driving push rod 505 to start and driving the sliding key 504 to a state of cooperation with the first speed change wheel 501.

[0056] The distance detector 601 is slidably arranged on the detection frame 602. Sliding rods are symmetrically arranged on both sides of the upper end surface of the distance detector 601. The sliding rods are slidably inserted through the front end plate of the detection frame 602. A button 603 matched with the upper end surface of the distance detector 601 is provided on the lower end surface of the front end plate of the detection frame 602. The button 603 is electrically connected to the driving unit 2. When the distance detector 601 is contacted and pushed by the upper surface of the tea tree, the button can be triggered, causing the output shaft 201 to reverse. At this time, the traveling unit 4 drives the trimmer to travel in the reverse direction to prompt the operator to prevent the trimmer from trimming too deeply.

[0057] In this embodiment, the trimmed branches and leaves are placed above the support plate 102 and directly fall onto the trimmed tea tree after piling up, thereby affecting the trimming efficiency and the subsequent harvesting of the trimmed branches and leaves; to improve the collection efficiency of the trimmed branches and leaves, in this embodiment, a conveying assembly 7 is provided on the frame body 101. As Figure 7 shown, the conveying assembly 7 includes a conveying plate 701. The conveying plate 701 is rotatably arranged above the traveling unit 4 and covers the upper area of the entire support plate 102.

[0058] One end of the conveying plate 701 away from the holding part 1 is rotatably arranged on one side of the frame body 101 through a pin shaft 703, and is matched with the driving shaft 103 near the holding part 1. A cam 702 is fixedly arranged at one end of the driving shaft 103 near the holding part 1. After the cam 702 rotates with the driving shaft 103, it intermittently contacts and lifts the conveying plate 701, causing one end of the conveying plate 701 to rotate and the other end to reciprocally lift, so that the conveying plate 701 inclines downward from the lifted end to the end of the pin shaft 703, sliding and conveying the branches and leaves falling on the conveying plate 701 to the end away from the holding part 1, and placing them on the open space between the tea trees after sliding out of the conveying plate 701 for easy collection.

[0059] In this embodiment, to achieve the stability of the conveying plate 701 at the lifted end, a cam 702 can be synchronously arranged on the driven shaft 104. Since the driven shaft 104 and the driving shaft 103 are in a synchronous rotation state, the rotation state of the cam 702 is also the same, realizing the synchronous lifting on both sides of the conveying plate 701 and improving the stability.

[0060] In this example, the axes of the driving shaft 103 and the driven shaft 104 are arranged in parallel, which is a conventional setting means for those skilled in the art and will not be elaborated here; in addition, a power supply providing weak electricity can be arranged on the holding part 1, or a small DC power generation component can be driven by the driving unit 2 to generate electricity, so as to provide weak electricity for the micro push rod, the distance detector 601, the button, etc. This is also a conventional setting and will not be further elaborated here.

[0061] The tea pruning process using the tea pruning machine with a telescopic adjustment mechanism as described above is as follows:

[0062] S1: The operator holds the tea pruning machine through the holding part 1 and prunes the branches and leaves of the tea with the pruning tool 3.

[0063] S2: After the pruning tool 3 prunes the tea, the traveling unit 4 is placed on the upper surface of the pruned tea tree. While the pruning tool 3 continues to prune, the whole pruning machine crawls on the upper surface of the tea tree through the traveling unit 4 to save the labor of the operator.

[0064] S3: The distance detector 601 on the detection unit 6 detects the distance to the upper surface of the unpruned tea tree, thereby adjusting the matching relationship between the intermediate shaft 202 and the speed change component 5 through the driving push rod 505 to adjust the rotation speed of the driving shaft 103 and change the traveling speed of the traveling unit 4.

[0065] S4: According to the width of the tea tree, the distance between adjacent traveling units 4 is adjusted by the telescopic sliding of the traveling unit 4 relative to the driving shaft 103 and the driven shaft 104 to adapt to tea trees of different widths.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tea pruning machine with a telescopic adjustment mechanism, characterized in that: include A gripping portion (1) for an operator to grip and manipulate; A driving unit (2) drives the trimmer to perform trimming operations; as well as A pruning tool (3) is connected to the driving unit (2) in driving connection with the driving unit (2) for pruning the branches and leaves of the tea leaves; The gripping portion (1) comprises a frame (101), and a support plate (102) for supporting the pruned tea tree is provided on the frame (101); The support plate (102) is provided with a plurality of walking units (4) that can be adjusted to be telescopically transversely; The walking unit (4) is in transmission connection with the driving unit (2), and when driven, causes the pruning machine to crawl on the surface of the pruned tea trees; The walking unit (4) comprises a first walking wheel (401), and a driving shaft (103) connected to the first walking wheel (401) is rotatably provided on the frame (101); The frame (101) is provided with a conveying assembly (7), the conveying assembly (7) comprising a conveying plate (701), the conveying plate (701) being rotatably arranged above the walking unit (4) and covering the entire area above the support plate (102); The end of the conveying plate (701) away from the holding portion (1) is rotatably arranged on one side of the frame (101) via a pin shaft (703); the end of the driving shaft (103) close to the holding portion (1) is fixedly provided with a cam (702); the cam (702) rotates with the driving shaft (103) and intermittently contacts and lifts the conveying plate (701), thereby rotating one end of the conveying plate (701); The walking unit (4) comprises a second walking wheel (402), and a walking belt (403) is provided between the first walking wheel (401) and the second walking wheel (402); The frame (101) is rotatably provided with a driven shaft (104) connected to the second running wheel (402); The driving shaft (103) is drivingly connected to the driving unit (2); The walking unit (4) is adjustable and slidably arranged on the driving shaft (103) and the driven shaft (104).

2. The tea pruning machine with a telescopic adjustment mechanism according to claim 1, wherein: The support plate (102) is provided with a notch (105) that matches the walking unit (4).

3. The tea pruning machine with a telescopic adjustment mechanism according to claim 1, characterized in that: The driving unit (2) comprises an output shaft (201) and an intermediate shaft (202) provided on a frame (101) and drivingly connected to the output shaft (201); the intermediate shaft (202) is drivingly connected to the driving shaft (103) via a gear unit (203).

4. The tea pruning machine with a telescopic adjustment mechanism according to claim 3, characterized in that: A speed change assembly (5) is arranged on the intermediate shaft (202), and the speed change assembly (5) comprises a first speed change wheel (501) and a second speed change wheel (502) rotatably sleeved on the intermediate shaft (202); The first speed change wheel (501) and the second speed change wheel (502) are connected to the output shaft (201) via a transmission belt (503).

5. The tea pruning machine with a telescopic adjustment mechanism according to claim 4, characterized in that: The intermediate shaft (202) is provided with a sliding key (504), and the frame body (101) is provided with a driving push rod (505) for driving the sliding key (504) to slide; After the driving push rod (505) drives the sliding key (504) to slide, the intermediate shaft (202) can be matched with the first speed change wheel (501) or the second speed change wheel (502).

6. The tea pruning machine with a telescopic adjustment mechanism according to claim 5, characterized in that: The frame body (101) is provided with a detection unit (6) extending forward at the forward end of the trimming machine. The detection unit (6) includes a distance detector (601), and the distance detector (601) is electrically connected to the driving push rod (505).

7. The tea pruning machine with a telescopic adjustment mechanism according to claim 6, wherein: The detection unit (6) includes a detection frame (602). The distance detector (601) is slidably arranged on the detection frame (602). A button (603) matching the distance detector (601) is arranged on the detection frame (602). The button (603) is electrically connected to the driving unit (2), and after being triggered, it reverses the output shaft (201).

8. A tea pruning process using the tea pruning machine with a telescopic adjustment mechanism as claimed in claim 7, characterized in that: The trimming process is as follows: S1: The operator holds the tea leaf trimming machine through the holding part (1), and trims the branches and leaves of the tea leaves through the trimming cutter (3). S2: After the trimming cutter (3) trims the tea leaves, the traveling unit (4) is placed on the upper surface of the trimmed tea tree. While the trimming cutter (3) continues to trim, the trimming machine as a whole crawls on the upper surface of the tea tree through the traveling unit (4). S3: The distance detector (601) on the detection unit (6) detects the distance to the upper surface of the untrimmed tea tree, so as to adjust the matching relationship between the intermediate shaft (202) and the speed change assembly (5) through the driving push rod (505), adjust the rotation speed of the driving shaft (103), and change the traveling speed of the traveling unit (4). S4: According to the width of the tea tree, the distance between adjacent traveling units (4) is adjusted by the telescopic sliding of the traveling unit (4) relative to the driving shaft (103) and the driven shaft (104) to adapt to tea trees of different widths.

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