Forestry seedling branch cutting machine

Abstract

The application discloses a forestry seedling branch cutting machine and belongs to the field of forestry machinery. The device comprises a mainframe, a traction frame, a branch placing and feeding mechanism and a branch cutting mechanism. The branch placing and feeding mechanism realizes automatic conveying through a symmetrical chain plate structure, the chain plate is composed of a chain and a rubber concave-convex plate, and a motor drives a gear transmission. The cutting mechanism comprises a ground wheel, a cutting wheel and a boot type ditcher, the inner and outer branch clamping rings of the cutting wheel are combined with elastic and soft materials, and the cutting wheel is matched with a supporting ring wheel and a pressing ring wheel to realize accurate clamping and cutting. The device can meet the needs of extreme desert environment and conventional areas, can automatically complete ditching, branch conveying, cutting and soil covering operations, effectively improves the cutting efficiency and survival rate, and reduces the labor intensity.

Description

Technical Field

[0001] This invention belongs to the field of forestry machinery technology, and in particular relates to a forestry seedling branch cutting machine. Background Technology

[0002] In the fields of ecological restoration and forestry construction, seedling cutting propagation is a key technology for rapid vegetation reconstruction. Currently, desertification control and large-scale afforestation operations face significant challenges.

[0003] Manual cutting propagation is inefficient: In desert environments, extreme weather conditions such as high temperatures, drought, and strong sandstorms make manual cutting propagation extremely inefficient, making it difficult to complete large-scale operations during the rainy season. Furthermore, the consistency in cutting depth and spacing is poor, resulting in low seedling survival rates. In conventional areas, manual cutting propagation is labor-intensive, with the daily cutting volume being less than 1 / 10 of that achieved by mechanized operations.

[0004] Existing equipment lacks adaptability: Traditional cutting propagation equipment has a single function and cannot be compatible with different terrains such as mountains and hills. It is difficult to cope with complex soil conditions such as clay and gravelly soil. It has poor versatility for different sizes of seedling branches and lacks precise control over the depth and angle of cutting, resulting in uneven seedling growth and affecting ecological benefits.

[0005] Equipment with limited functionality: Existing equipment is usually designed for a single scenario. Desert control equipment is difficult to adapt to the terrain and soil of conventional areas, and conventional afforestation equipment cannot withstand the harsh desert environment. There is an urgent need for multifunctional equipment to meet diverse needs. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a forestry seedling branch cutting machine. The branch cutting machine replaces manual labor to complete the cutting operation, reducing the intensity of manual labor and improving work efficiency.

[0007] The objective of this invention is achieved as follows: A forestry seedling branch cutting propagation machine includes a main frame, a traction frame, a branch placement and feeding mechanism, and a branch cutting mechanism, characterized in that: The branch placement and feeding mechanism adopts a symmetrical sprocket-chain plate structure. The chain plate is composed of a chain and an outer rubber concave-convex plate, and synchronous conveying is achieved through motor-driven gear transmission.

[0008] The branch cutting mechanism includes a ground wheel, a cutting wheel driven to rotate by the ground wheel, and a boot-type trencher located below the cutting wheel. The cutting wheel includes an I-beam wheel, on which two discs of the I-beam wheel are respectively fixedly installed an outer clamping ring made of elastic material. The outer diameter of the clamping ring is 2-4 times the diameter of the I-beam wheel disc. A soft inner clamping ring is adhered to the inner side of the outer clamping ring. Two supporting ring wheels are set on the inner side of the upper front of the inner clamping ring to open the inner and outer clamping rings. A clamping ring mechanism is set on the lower front of the outer clamping ring. The clamping ring mechanism includes an arc-shaped plate installed on the frame, on which multiple pressure ring wheels are arranged in an arc.

[0009] Preferably, the ground wheels include two ground wheels symmetrically mounted on the rear frame of the cutting wheel, and the two ground wheels are respectively connected to the cutting wheel via chain drive.

[0010] Preferably, the outer clamping ring (305) is made of an elastic material, which is made of steel wire reinforced rubber, and the inner clamping ring (306) is made of a soft material, which is polyurethane foam with a hardness of 30±5HSA.

[0011] Preferably, a moldboard trencher is installed in front of the boot-type trencher.

[0012] Preferably, a traction frame is installed in front of the main frame, and depth-limiting wheels are installed under the traction frame.

[0013] Preferably, it also includes a branch-laying operation room, with branch storage boxes on both sides inside the branch-laying operation room, and a side door and a side entrance for storing branches outside the branch storage boxes. Two seats are provided inside the branch-laying operation room.

[0014] Preferably, the front center of the branch-laying operation room is provided with a main entrance and a main door for operators to enter and exit; front transparent windows are provided on both sides of the entrance, and a rear transparent window is provided on the rear side of the branch-laying operation room.

[0015] Preferably, to address the problem of ground wheel slippage during tree cutting propagation in desert environments, preventing the ground wheel from properly driving the cutting wheel's rotation, this invention further includes a hydraulic drive system. The hydraulic drive system comprises a microprocessor, a wheel speed sensor, and a hydraulic motor. The wheel speed sensor is electrically connected to the microprocessor and transmits the traveling speed signal of the forestry tree cutting propagation machine to the microprocessor. The microprocessor is electrically connected to the hydraulic motor and controls the hydraulic motor's rotation speed based on the traveling speed signal. The hydraulic motor and the ground wheel jointly drive the cutting wheel's rotation. This drive mode is primarily ground wheel-driven, with the hydraulic motor providing assistance. When the ground wheel slips, the hydraulic motor activates to drive the cutting wheel's rotation.

[0016] Preferably, the wheel speed sensor is a Hall effect wheel speed sensor, which is fixed to the inner side of the rim of the driving wheel of the traction locomotive by a bracket. The distance between the sensor probe and the signal teeth on the rim is kept at 2-3mm to ensure the accuracy of the speed signal acquisition.

[0017] Preferably, the hydraulic motor is connected to the inserting wheel via a first sprocket and chain mechanism, and the ground wheel is connected to the inserting wheel via a second sprocket and chain mechanism. In the first sprocket and chain mechanism, a first flywheel is fixedly installed on the drive shaft of the inserting wheel or the output shaft of the hydraulic motor; in the second sprocket and chain mechanism, a second flywheel is fixedly installed on the drive shaft of the inserting wheel or the drive shaft of the ground wheel. The flywheel has a unidirectional driving function and is equipped with a pawl and ratchet structure on its inner side, which can only transmit power in the driving direction. When the ground wheel's driving speed is higher than that of the hydraulic motor, the ground wheel drives the inserting wheel to rotate through the second sprocket and chain mechanism and the second flywheel. Due to its unidirectional characteristic, the first flywheel on the hydraulic motor side does not transmit reverse resistance. Conversely, when the hydraulic motor's driving speed is higher, it drives the inserting wheel to rotate through the first sprocket and chain mechanism and the first flywheel. The second flywheel on the ground wheel side does not generate drag, realizing the coordinated driving of the two power sources without interference, similar to the principle of a tandem bicycle.

[0018] The advantages of this invention compared to existing technologies are as follows: (1) High-efficiency automated operation: The chain plate transmission realizes the automatic delivery of branches, and the two operators work together to place them. With the help of the chain plate groove positioning (the spacing control error is ≤10mm), the daily cutting volume exceeds 5,000 plants, which is more than 10 times the amount of manual operation, greatly improving the afforestation efficiency.

[0019] (2) Precise cutting control: The inner and outer branch clamping rings, together with the support ring wheel and the pressing ring wheel, can precisely adjust the cutting depth (error ±5mm) and angle (±2°), increasing the survival rate to over 70%.

[0020] (3) Strong adaptability design: The combination of moldboard and boot-type trenchers breaks clay and gravelly soil, the depth-limiting wheel adapts to complex terrain, and the steel wire reinforced rubber outer ring resists desert wind and sand abrasion.

[0021] (4) Branch protection and versatility: The soft polyurethane foam with branch rings inside does not damage the bark of the branches and is compatible with branches of sand willow, poplar and other trees with diameters of 5-30mm.

[0022] (5) Multifunctional integration: The branch operation room provides a shaded and windproof environment, the branch storage box facilitates batch feeding, and the equipment has both desert control and conventional afforestation functions, reducing repeated investment.

[0023] (6) Flexible clamping design: The V-shaped groove of the rubber concave-convex plate has a contact area of ​​more than 70% with the branches, and the 15° inclined groove wall prevents the branches from slipping or turning over during transportation, ensuring the consistency of the cutting angle. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view from the upper right front of the forestry seedling branch cutting machine according to Embodiment 1 of the present invention; Figure 2This is a right-side view of the forestry seedling branch cutting machine of Embodiment 1 of the present invention; Figure 3 This is a three-dimensional view from the upper right rear of the operating room of the forestry seedling branch cutting machine without branch swaying, according to Embodiment 1 of the present invention; Figure 4 This is a right-side view of the non-swaying operating room of the forestry seedling branch cutting machine according to Embodiment 1 of the present invention; Figure 5 This is a perspective view of the branch placement and feeding mechanism from the upper right front of Embodiment 1 of the present invention; Figure 6 This is an exploded perspective view of the branch placement and feeding mechanism according to Embodiment 1 of the present invention; Figure 7 This is a rear view of the left front chain plate and the right front chain plate of Embodiment 1 of the present invention; Figure 8 This is a rear view of the left and right rear chain plates of Embodiment 1 of the present invention; Figure 9 This is a right-side view of the branch cutting propagation mechanism of Embodiment 1 of the present invention; Figure 10 This is a perspective view of the ground wheel and the I-beam wheel and their transmission connection mechanism in Embodiment 1 of the present invention; Figure 11 This is a perspective view of the outer clamping branch ring, inner clamping branch ring, supporting ring wheel, arc plate and pressing ring wheel of Embodiment 1 of the present invention; Figure 12 This is an exploded perspective view of the branch cutting mechanism of Embodiment 1 of the present invention; Figure 13 This is a perspective view of the upper right front of the branch-swinging operation room in Embodiment 1 of the present invention; Figure 14 This is a perspective view of the upper left rear of the branch-swinging operation room in Embodiment 1 of the present invention; Figure 15 This is a perspective view of the ground wheel, insert wheel, hydraulic motor and its transmission mechanism from the upper right rear view of Embodiment 2 of the present invention.

[0025] In the diagram: 101-Main frame, 102-Traction frame, 103-Depth limiting wheel, 201-Front plate frame, 202-Left rear plate frame, 203-Right rear plate frame, 204-Left drive sprocket shaft, 205-Left driven sprocket shaft, 206-Left lower driven sprocket shaft, 207-Left lower short driven sprocket shaft, 208-Left rear chain plate, 209-Left front chain plate, 210-Right drive sprocket shaft, 211-Right driven sprocket shaft, 212-Right lower driven sprocket shaft, 213-Right lower short driven sprocket shaft, 214-Right rear chain plate, 215-Right front chain plate, 216-Rubber convex and concave plate, 217- 218-Drive gear, 219-Motor, 301-Ground wheel, 302-Cutting wheel, 303-Shoe-type trencher, 304-I-beam wheel, 305-Outer branch clamping ring, 306-Inner branch clamping ring, 307-Supporting ring wheel, 308-Arc plate, 309-Pressure ring wheel, 310-Folding trencher, 311-Soil covering device, 401-Branch swaying operation room, 402-Branch storage box, 403-Side door, 404-Seat, 405-Main door, 406-Front transparent window, 407-Rear transparent window, 501-Hydraulic motor, 502-First flywheel, 503-Second flywheel. Detailed Implementation

[0026] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore merely examples and should not be construed as limiting the scope of protection of the present invention. In the description of this application, it should be understood that the terms "front," "middle," "rear," "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] Example 1: Composition and Structure of a Forestry Seedling Branch Cutting Propagation Machine like Figure 1-14 As shown, the forestry seedling cutting machine uses a main frame 101 as its supporting structure. The front end is connected to a tractor or other power equipment via a traction frame 102. Depth-limiting wheels 103 are installed below the traction frame 102 to adjust the overall operating height of the machine, adapting to the cutting depth requirements of different terrains. A branch-positioning operation chamber 401 is located in the middle of the main frame 101, housing a branch placement and feeding mechanism. The branch cutting mechanism is located at the rear. The specific structures of each component are as follows: 1. Branch placement and delivery mechanism The structure is designed with a left-right symmetry: Left side structure: Between the front plate frame 201 and the left rear plate frame 202, the left drive sprocket shaft 204, the left driven sprocket shaft 205, and the lower left driven sprocket shaft 206 are horizontally mounted via bearings. The lower left short driven sprocket shaft 207 below the lower left driven sprocket shaft 206 is vertically mounted on the front plate frame 201 via bearings. The left rear chain plate 208 is fitted onto the sprockets of the left drive sprocket shaft 204, the left driven sprocket shaft 205, and the lower left driven sprocket shaft 206. The left front chain plate 209 is fitted onto the sprockets of the left drive sprocket shaft 204, the left driven sprocket shaft 205, and the lower left short driven sprocket shaft 207. The rubber convex and concave plates 216 on the outer side of the chain plates form a wavy clamping surface, which can effectively prevent the branches from slipping during transportation.

[0028] Right side structure: Between the front plate frame 201 and the right rear plate frame 203, the installation method of the right drive sprocket shaft 210, the right driven sprocket shaft 211, the right lower driven sprocket shaft 212 and the right lower short driven sprocket shaft 213 is symmetrical with that of the left side. The transmission structure of the right rear chain plate 214 and the right front chain plate 215 is the same as that of the left side, ensuring that the left and right chain plates run synchronously.

[0029] Power transmission: The intermediate gears 217 at the front ends of the left drive sprocket shaft 204 and the right drive sprocket shaft 210 mesh with each other (both have 20 teeth). The right intermediate gear 217 meshes with the drive gear 218, which is driven by the motor 219. The synchronous reverse movement of the left and right chain plates is achieved through gear transmission, ensuring the stability of branch conveying.

[0030] 2. Branch cutting propagation mechanism Ground wheels and transmission: Two ground wheels 301 are symmetrically installed on the frame behind the cutting wheel 302 and are connected to the sprocket on the I-beam wheel (304) of the cutting wheel (302) by a chain. When the ground wheels 301 move with the whole machine, the cutting wheel 302 is driven to rotate by the chain, realizing the power transmission of the cutting action.

[0031] Cutting assembly: The outer diameter of the wheel disc of the I-beam wheel 304 is 300mm. The outer branch clamping ring 305 (steel wire reinforced rubber material, outer diameter 600mm) is fixed to the wheel disc with bolts. The inner branch clamping ring 306 (polyurethane foam with a hardness of 30±5HSA) is adhered to the inside of the outer branch clamping ring 305. Two support ring wheels 307 above the front of the inner branch clamping ring 306 are used to open the inner and outer branch clamping rings to form a branch entry. Six pressure ring wheels 309 are evenly distributed on the arc-shaped plate 308 below the front to tighten the branch clamping rings and achieve precise clamping of the branches.

[0032] Trenching and covering: The boot-type trencher 303 is located below the cutting wheel 302. The moldboard trencher 310 in front of it breaks the soil first, and the boot-type trencher 303 further expands the trench. The depth is performed according to the parameters set by the depth limiting wheel (103) in the preparation stage (20cm in normal areas and 30cm in desert areas). The covering device 311 is set behind the cutting wheel 302 to complete the covering operation after cutting and ensure the stable growth of seedlings.

[0033] 3. Branching Operation Room The branch-positioning control room 401 is fixed in the middle of the main frame 101, providing a comfortable working environment for the operator. A branch storage box 402 is set on each of the two sides inside, and a side door 403 is opened on the outside to facilitate the operator to load materials.

[0034] The main door 405 is located in the center of the front of the control room. The front transparent window 406 and the rear transparent window 407 on the rear side provide a full-view observation, ensuring that the operator can monitor the equipment operation status and the placement of branches in real time.

[0035] The interior is equipped with two seats (404) for two operators to work simultaneously, each responsible for placing branches on the left and right chain plates, thus improving work efficiency.

[0036] Working principle and operating procedures I. Working Principle 1. Power transmission After the tractor is connected to the towing frame 102, the tractor drives the whole machine forward, and the ground wheel 301 rotates accordingly, which drives the cutting wheel 302 to rotate through the chain; at the same time, the motor 219 starts, drives the drive gear 218 to rotate, and transmits the transmission to the left and right drive sprocket shafts 204 and 210 through the intermediate gear 217, so that the left and right chain plates run synchronously, realizing the automatic delivery of branches and the coordinated work of cutting action.

[0037] 2. Branch transport Two operators take branches from the branch storage box 402 in the branch handling chamber 401 and place them in the grooves of the rubber convex and concave plates 216 on the left and right chain plates. The wavy clamping surface of the rubber convex and concave plates 216 has a contact area of ​​more than 70% with the branches. Combined with the 15° inclined groove wall design, it can effectively prevent the branches from slipping or turning over during the transportation process, ensuring that the branches are stably transported above the cutting wheel 302.

[0038] 3. Cuttings process The cuttings are conveyed by the chain plate to the support ring wheel 307, entering the gap of the branch clamping ring opened by the support ring wheel 307, and then moving downwards as the cutting wheel 302 rotates. When the cuttings reach the pressure ring wheel 309, the pressure ring wheel 309 tightens the branch clamping ring, precisely holding the cuttings. At this time, the boot-type trencher 303 has already opened a trench based on the soil breaking by the moldboard trencher 310, and the cuttings are accurately inserted into the trench. Subsequently, the soil covering device 311 backfills the soil, completing the cutting operation.

[0039] II. Operating Procedures 1. Preparation stage The towing frame 102 is reliably connected to the tractor. The height of the depth limiting wheel 103 is adjusted according to the working area (such as desert or conventional area). The depth limiting wheel can be adjusted to set the cutting depth to 20-30cm (20cm±5mm in conventional area, 30cm±5mm in desert area), ensuring that the cutting depth is accurately controllable in different areas.

[0040] Plant branches are stacked into the branch storage box 402 in the branch arranging operation room 401 to ensure that the branches are arranged neatly and easy for the operator to use.

[0041] A comprehensive inspection was conducted on the operating status of motor 219, the tension of the chain, and the elasticity of the clamping ring to ensure that all components of the equipment were operating normally and that there were no safety hazards.

[0042] 2. Work Phase Start the tractor, and the whole machine moves forward slowly. The ground wheel 301 starts to rotate, driving the cutting wheel 302 to rotate; at the same time, the motor 219 is turned on, and the left and right chain plates start to run synchronously.

[0043] Two operators sit on seats 404 in the branch handling room 401, take out branches from the branch storage box 402, and quickly and accurately place them in the grooves of the rubber convex and concave plates 216 on the left and right chain plates. The chain plates then transport the branches backward.

[0044] The moldboard trencher 310 and the boot trencher 303 sequentially break the soil and open trenches. The cutting wheel 302 clamps the branches and inserts them into the trenches, and the soil covering device 311 follows closely to complete the soil covering, realizing the automated and continuous operation of the cutting. The operator can monitor the placement of branches and the quality of cutting in real time through the front transparent window 406 and the rear transparent window 407, and make timely adjustments if any abnormalities are found.

[0045] 3. End Phase Turn off motor 219, slow down and stop the tractor, disconnect the drawbar 102 from the tractor, and park the equipment in the designated location.

[0046] Clean up any remaining branches on the chain plate, check for wear on the branch clamping rings, and lubricate and maintain easily worn parts such as the trencher and chain to extend the service life of the equipment.

[0047] If it is necessary to change the terrain (such as from desert to conventional area), readjust the height of the depth limiting wheel 103 and check the soil breaking angle of the moldboard trencher 310 to ensure that the equipment is adapted to the new working environment.

[0048] Example 2: Figure 15 As shown, a forestry seedling branch cutting machine, based on Embodiment 1, further includes a hydraulic drive system; the hydraulic drive system includes a microprocessor, a wheel speed sensor, and a hydraulic motor 501, the hydraulic motor (501) being bolted to the base plate of the branch-swinging operation chamber (401). The wheel speed sensor is electrically connected to the microprocessor and is used to transmit the traveling speed signal of the forestry seedling branch cutting machine to the microprocessor; the microprocessor is electrically connected to the hydraulic motor 501 and is used to control the rotational speed of the hydraulic motor according to the traveling speed signal. The hydraulic motor 501 is driven by the cutting wheel (302) through a first sprocket and chain mechanism, and the ground wheel 301 is driven by the cutting wheel 302 through a second sprocket and chain mechanism; in the first sprocket and chain mechanism, a first flywheel 502 is provided on the drive shaft of the cutting wheel 302, and in the second sprocket and chain mechanism, a second flywheel 503 is provided on the drive shaft of the cutting wheel 302. The wheel speed sensor is a Hall effect wheel speed sensor, which is fixed to the inside of the rim of the driving wheel of the traction locomotive by a bracket. The distance between the sensor probe and the signal teeth on the rim is kept at 2-3mm to ensure the accuracy of the speed signal acquisition.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A forestry seedling branch cutting propagation machine, characterized in that, Includes a main frame (101), a traction frame (102), a branch placement and feeding mechanism, and a branch cutting mechanism: The branch placement and feeding mechanism adopts a left-right symmetrical sprocket-chain plate structure. The chain plate is composed of a chain and an outer rubber concave-convex plate. Synchronous conveying is achieved by a motor-driven gear transmission. The left-right symmetrical sprocket-chain plate structure includes a front plate frame (201), a left-right symmetrical rear plate frame (202), and a right rear plate frame (203). The front plate frame and the left and right rear plate frames are respectively connected by bearings to install sprocket shafts, and chain plates are sleeved on the sprocket shafts. The branch cutting mechanism includes a ground wheel (301), a cutting wheel (302), and a boot-type trencher (303). The ground wheel (301) drives the cutting wheel (302) to rotate. The cutting wheel (302) includes an I-beam wheel (304). The I-beam wheel (304) has an outer clamping ring (305) fixed on its disc. An inner clamping ring (306) is attached to the inner side of the outer clamping ring (305). A support ring wheel (307) is provided above the inner clamping ring (306), and a clamping ring mechanism is provided below the inner clamping ring (306). The clamping ring mechanism includes an arc plate (308) on the frame and an arc-shaped pressing ring wheel (309). A soil covering device (311) is provided behind the cutting wheel (302) to complete the soil covering operation after cutting.

2. The forestry seedling branch cutting propagation machine according to claim 1, characterized in that, The ground wheel (301) is symmetrically installed on the frame behind the cutting wheel (302) and the cutting wheel (302) is driven by a chain.

3. The forestry seedling branch cutting propagation machine according to claim 2, characterized in that, The outer clamping ring (305) is made of steel wire reinforced rubber, and the inner clamping ring (306) is polyurethane foam with a hardness of 30±5 HS A.

4. The forestry seedling branch cutting propagation machine according to claim 3, characterized in that, A moldboard-type trencher (310) is provided in front of the boot-type trencher (303).

5. The forestry seedling branch cutting propagation machine according to claim 4, characterized in that, A depth-limiting wheel (103) is provided below the traction frame (102) in front of the main frame (101).

6. The forestry seedling branch cutting propagation machine according to claim 1, characterized in that, It also includes a branch-laying operation room (401), with branch storage boxes (402) on both sides inside the operation room, a side door (403) on the outside, two seats (404) inside, a main door (405) and a front transparent window (406) in front, and a rear transparent window (407) on the rear side.

7. The forestry seedling branch cutting propagation machine according to claim 5, characterized in that, It also includes a hydraulic drive system; the hydraulic drive system includes a microprocessor, a wheel speed sensor and a hydraulic motor (501); the wheel speed sensor is electrically connected to the microprocessor and is used to transmit the travel speed signal of the forestry seedling branch cutting machine to the microprocessor; the microprocessor is electrically connected to the hydraulic motor and is used to control the rotation speed of the hydraulic motor (501) according to the travel speed signal; the hydraulic motor (501) and the ground wheel (301) jointly drive the cutting wheel (302) to rotate.

8. The forestry seedling branch cutting propagation machine according to claim 7, characterized in that, The hydraulic motor (501) is connected to the cutting wheel (302) via a first sprocket and chain mechanism, and the ground wheel (301) is connected to the cutting wheel (302) via a second sprocket and chain mechanism. In the first sprocket and chain mechanism, a first flywheel (502) is fixedly installed on the drive shaft of the cutting wheel (302) or on the output shaft of the hydraulic motor (501). In the second sprocket and chain mechanism, a second flywheel (503) is fixedly installed on the drive shaft of the cutting wheel (302) or on the drive shaft of the ground wheel (301).

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