Forestry land preparation equipment

Abstract

The invention discloses forestry land preparation equipment, and relates to the technical field of forestry protection, the forestry land preparation equipment comprises a cockpit, an obstacle removing assembly and a land preparation assembly, the horizontal longitudinal two sides of the bottom end of the cockpit are fixedly connected with first cross beams, and the bottom ends of the first cross beams are fixedly connected with second cross beams; the two horizontal transverse sides of the second cross beams penetrate through and are jointly and rotationally connected with a driving shaft, advancing wheels are arranged at the two ends of the driving shaft, and limiting grooves facing the outer side of the device are formed in one ends of the two first cross beams. By arranging the obstacle clearing assembly, obstacle clearing operation is conducted on the ground before soil preparation operation, the obstacle clearing capacity is adaptive to complex conditions of the ground, and then the working efficiency of the device is effectively improved; by arranging the adjusting mechanism, the inclination angle of the lifting mechanism can be freely adjusted, and then horizontal soil preparation operation on the ground with different gradients is achieved; a lifting mechanism is arranged, soil preparation operation is synchronously completed along with advancing of the device, and the soil preparation effect can be freely controlled according to the ground condition.

Description

Technical Field

[0001] The present invention relates to the technical field of forestry protection, and specifically provides a land preparation device for forestry land. Background Art

[0002] The land preparation devices for forestry land refer to the machinery or equipment used to improve, prepare, and level the land in forestry projects. Their main function is to create a suitable soil environment for tree planting to ensure the healthy growth of forest trees. The land preparation operations for forestry land usually include multiple links such as weed removal, soil loosening, ground leveling, and soil improvement, and the land preparation devices are important tools to complete these operations.

[0003] After retrieval, a Chinese patent with the publication number CN118451810B includes a land preparation device and a control system. The land preparation device is signal-connected to the control system. The land preparation device includes a main frame body, on which an avoidance component, a root digging component, a rotary tillage component, a weeding component, a soil covering component, and a driving component are respectively arranged; the rotary tillage component is located inside the main frame body and is used for plowing the forest land. The avoidance component is located on one side of the main frame body far from the rotary tillage component and is used to avoid obstacles in the plowed land to the outside of the device. The soil covering component is used to fill the plowed land, and the driving component is located on one side of the main frame body close to the soil covering component and is used to drive the device to move. The above patent avoids stones or other obstacles in the plowed land to the outside of the device through the avoidance component, and digs the tree roots and grass roots in the plowed land through the root digging component to prevent the obstacles from damaging the rotary tillage component and the root digging component.

[0004] However, during the working process of the avoidance component in the above patent, only when the guide plates move outward can the function of exporting stones or other obstacles be realized. During the reset process when the guide plates move to the outermost side and approach each other, the obstacles will be re-accumulated in front of the device. That is, during the process of the device moving forward for rotary tillage, the avoidance component cannot achieve global obstacle clearance; on the other hand, the above patent lacks the unified treatment of the operation depth and horizontal slope. The operation depth of the rotary tillage component is not adjustable, resulting in the problem of soil erosion due to excessive slope on the ground after the device prepares the land in steep slope areas, which further affects the root growth of plants. Summary of the Invention

[0005] The purpose of the present invention is to provide a land preparation device for forestry land, which has the advantages of terraced land preparation and adaptive obstacle clearance, and solves the problems raised in the background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A forest land site preparation device, including a cockpit, a clearance component, and a site preparation component. Horizontally and longitudinally on both sides of the bottom end of the cockpit, there are fixed connection crossbeams one. At the bottom end of the crossbeam one, there is a fixed connection crossbeam two. Horizontally and transversely on both sides of the crossbeam two, it is penetrated and jointly rotatably connected with a driving shaft. At both ends of the driving shaft, there are traveling wheels. At one end of each of the two crossbeams one, there are provided limiting grooves facing the outside of the device. The clearance component includes a transmission mechanism synchronized with the traveling state of the device and a bulldozing mechanism for completing the clearance operation. The transmission mechanism includes a coupling ring penetrated and limitedly rotatably connected to the middle section of the driving shaft. The bulldozing mechanism includes a positioning shaft penetrated and slidably connected with the coupling ring. The site preparation component includes an adjustment mechanism for controlling the site preparation angle and a lifting mechanism for completing the site preparation operation. The adjustment mechanism includes a fixed frame fixedly connected to the upper surface of the crossbeam one away from the limiting groove end. The lifting mechanism includes a motor as the power source for the site preparation operation.

[0007] Preferably, a control module is provided inside the cockpit and is signal-connected to the clearance component and the site preparation component through an electric control system.

[0008] Preferably, on both sides of the top end of the coupling ring, it is penetrated and rotatably connected with transmission shafts. The ends of the transmission shafts away from the coupling ring are penetrated and rotatably connected with the corresponding crossbeam one. On the outer contour of the end of the transmission shaft away from the coupling ring, there is a chain one in transmission connection. The inner contour of the bottom end of the chain one is in transmission connection with the driving shaft. At the end of the transmission shaft away from the coupling ring, there is fixedly connected a bevel gear one. The top of the bevel gear one is meshed and driven with a bevel gear two. The bevel gear two is penetrated and limitedly rotatably connected to the upper surface of the crossbeam one. The top of the bevel gear two is in transmission connection with a chain two. The inner contour of the end of the chain two away from the bevel gear two is in transmission connection with a driven shaft. The driven shaft is penetrated and limitedly rotatably connected with the crossbeam one.

[0009] Preferably, at the end of the positioning shaft away from the coupling ring, there is fixedly connected a V-shaped shovel. Between the V-shaped shovel and the coupling ring, there is a compression spring sleeved on the outer contour of the positioning shaft. On both sides of the V-shaped shovel, there are push belts rotatably connected through pin shafts, and the inner contour of the middle section of the push belt is in transmission connection with the driven shaft. The inner contour of the end of the push belt away from the V-shaped shovel is in transmission connection with a limiting shaft. The top of the limiting shaft is penetrated and rotatably connected with a telescopic connecting rod. At the end of the telescopic connecting rod away from the limiting shaft, there is fixedly connected a slider, and the slider is slidably connected inside the limiting groove. Between the crossbeam one and the limiting shaft, there is a resisting spring sleeved on the outer contour of the telescopic connecting rod.

[0010] Preferably, the bottom end of the push belt is set to an outwardly expanding structure in contact with the ground, and there are annular blades at the edge of the outwardly expanding structure.

[0011] Preferably, the middle section of the top end of the fixing frame is penetrated and rotatably connected with a worm, the position of the fixing frame near the top end is penetrated and rotatably connected with a deflection shaft, a worm gear is fixedly connected to the middle section of the deflection shaft, and the worm gear is in meshing transmission connection with the worm. On both sides of the outer contour of the deflection shaft near the middle section, inclination plates extending downward are fixedly connected together.

[0012] Preferably, the output end of the motor is penetrated and rotatably connected with a connecting frame in a limited manner. A driving wheel is fixedly connected to the output end of the motor and is located on the side of the connecting frame away from the motor. A transmission wheel is in meshing transmission connection with both sides of the driving wheel. The transmission wheel is penetrated and rotatably connected with the connecting frame. A crank one is fixedly connected to the side of the transmission wheel away from the connecting frame. One end of the crank one away from the transmission wheel is penetrated and rotatably connected with a planetary gear. A gear ring is in meshing transmission connection with the outer contour of the planetary gear. A crank two is fixedly connected to the side of the planetary gear away from the crank one. One end of the crank two away from the planetary gear is penetrated and rotatably connected with a lifting shovel.

[0013] Preferably, the tops of the connecting frame and the gear ring are both fixedly connected to the lower surface of the inclination plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging the obstacle clearing component, the ground is cleared before the land preparation operation, and the obstacle clearing ability adapts to the complex situation of the ground, thereby effectively improving the working efficiency of the device.

[0015] By arranging the adjusting mechanism, the inclination angle of the lifting mechanism can be freely adjusted, thereby realizing the horizontal land preparation operation for ground with different slopes.

[0016] By arranging the lifting mechanism, the land preparation operation is synchronously completed along with the movement of the device, and the land preparation effect can be freely controlled according to the ground conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the present invention; Figure 2 is a cross-sectional view of the main structure of the present invention; Figure 3 is a schematic diagram of the frame structure of the present invention; Figure 4 is a schematic diagram of the transmission mechanism of the present invention; Figure 5 is a schematic diagram of the earthmoving mechanism of the present invention; Figure 6 is a schematic diagram of the land preparation component of the present invention; Figure 7 is a schematic diagram of the adjusting mechanism of the present invention; Figure 8Schematic diagram of the lifting mechanism of the present invention; Figure 9 Explanation diagram of the working principle of the present invention.

[0018] In the figure: 1, cockpit; 11, crossbeam one; 12, crossbeam two; 13, drive shaft; 14, limit groove; 15, traveling wheel; 2, coupling ring; 21, transmission shaft; 22, chain one; 23, bevel gear one; 24, bevel gear two; 25, chain two; 26, driven shaft; 3, positioning shaft; 31, V-shaped shovel; 32, compression spring; 33, bulldozing belt; 34, limit shaft; 35, telescopic connecting rod; 36, slider; 37, counter spring; 4, fixing frame; 41, worm; 42, worm gear; 43, deflection shaft; 44, inclination plate; 5, connecting frame; 51, motor; 52, driving wheel; 53, transmission wheel; 54, crank one; 55, gear ring; 56, planetary gear; 57, crank two; 58, lifting shovel. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Please refer to Figures 1 to 9 , the present invention provides a technical solution: a forest land soil preparation device, including a cockpit 1, a clearance component, and a soil preparation component. The horizontal longitudinal sides at the bottom of the cockpit 1 are fixedly connected with crossbeams one 11, and the bottom ends of the crossbeams one 11 are fixedly connected with crossbeams two 12. The horizontal transverse sides of the crossbeams two 12 are both penetrated and commonly rotatably connected with a drive shaft 13. Traveling wheels 15 are arranged at both ends of the drive shaft 13, and limit grooves 14 facing the outside of the device are opened at one ends of the two crossbeams one 11; The clearance component includes a transmission mechanism that synchronizes the traveling state and a bulldozing mechanism that completes the clearance operation. The transmission mechanism includes a coupling ring 2 that is penetrated and limit-rotatably connected to the middle section of the drive shaft 13, and the bulldozing mechanism includes a positioning shaft 3 that penetrates and is slidably connected to the coupling ring 2; The soil preparation component includes an adjustment mechanism for controlling the soil preparation angle and a lifting mechanism for completing the soil preparation operation. The adjustment mechanism includes a fixing frame 4 fixedly connected to one end of the upper surface of the crossbeam one 11 away from the limit groove 14, and the lifting mechanism includes a motor 51 that serves as the power source for the soil preparation operation.

[0021] A control module is arranged inside the cockpit 1 and is signal-connected to the clearance component and the soil preparation component through an electric control system.

[0022] When land preparation operations are required, personnel enter the interior of the cockpit 1 and drive the entire device to move forward in the area to be leveled through the control module. Along with the movement of the device, the obstacle clearing component automatically clears the plants and stones on the ground. Subsequently, the land preparation component levels the plowed ground after obstacle clearing.

[0023] It should be noted that the first crossbeam 11 and the second crossbeam 12 serve as the frame structure of the device. Personnel control the drive shaft 13 to drive the traveling wheels 15 to rotate synchronously to realize the traveling process of the device, and the limit groove 14 further guides and limits the bulldozing mechanism. At the same time, the rotation of the drive shaft 13 drives the transmission mechanism to operate synchronously, and the transmission mechanism further drives the bulldozing mechanism to start synchronously. During the traveling process, the debris on the ground first comes into contact with the bulldozing mechanism. After small plants are cut by the bulldozing mechanism, other debris such as stones are pushed to both sides of the device synchronously by the bulldozing mechanism to complete the obstacle clearing operation. According to the resistance of the ground debris to the bulldozing mechanism during the traveling process of the device, the breaking angle of the bulldozing mechanism is dynamically controlled, so as to improve the adaptability of the device under different surface conditions and further ensure the obstacle clearing efficiency of the device.

[0024] On the other hand, when the device operates on a slope, the control and adjustment mechanism realizes the deflection of the lifting mechanism, and the deflection angle is the same as the ground slope. At this time, the lifting mechanism always maintains vertical lifting operation during subsequent land preparation operations, thereby achieving the effect of horizontal land preparation of the device.

[0025] It should be noted that personnel can separately adjust the running speed of the lifting mechanism through the control module. According to the angle of the slope to be leveled and the length of the area to be leveled, different running speeds correspond to different land preparation effects, so as to realize the free switching of the device between horizontal land preparation and various types of terraced land preparation modes. While further improving the applicability of the device, it effectively reduces the engineering quantity of land preparation operations and the risk of soil and water loss after land preparation.

[0026] Embodiment 2: Please refer to Figure 4 and Figure 5, this embodiment is further explained on the basis of the first embodiment: both sides of the top of the coupling ring 2 are penetrated and rotatably connected with a transmission shaft 21, the end of the transmission shaft 21 away from the coupling ring 2 is penetrated and rotatably connected with the beam 11 at the corresponding position, the outer contour of the transmission shaft 21 away from the coupling ring 2 is transmission-connected with a chain 12, the inner contour of the bottom end of the chain 12 is transmission-connected with the drive shaft 13, the end of the transmission shaft 21 away from the coupling ring 2 is fixedly connected with a bevel gear 123, the top of the bevel gear 123 is meshingly transmission-connected with a bevel gear 24, the bevel gear 24 penetrates and is limitedly rotationally connected to the upper surface of the beam 11, the top of the bevel gear 24 is transmission-connected with a chain 25, the inner contour of the end of the chain 25 away from the bevel gear 24 is transmission-connected with a driven shaft 26, the driven shaft 26 penetrates and is limitedly rotationally connected with the beam 11.

[0027] The end of the positioning shaft 3 away from the coupling ring 2 is fixedly connected to a V-shaped shovel 31, and a compression spring 32 sleeved on the outer contour of the positioning shaft 3 is fixedly connected between the V-shaped shovel 31 and the coupling ring 2. Bulldozer belts 33 are rotatably connected to both sides of the V-shaped shovel 31 through pins, and the inner contour of the middle section of the bulldozer belt 33 is transmission-connected to the driven shaft 26. The inner contour of the bulldozer belt 33 away from the end of the V-shaped shovel 31 is transmission-connected to a limiting shaft 34, and a telescopic connecting rod 35 passes through and is rotatably connected to the top of the limiting shaft 34. A slider 36 is fixedly connected to the end of the telescopic connecting rod 35 away from the limiting shaft 34, and the slider 36 is slidably connected to the inside of the limiting groove 14, and a resisting spring 37 sleeved on the outer contour of the telescopic connecting rod 35 is arranged between the cross beam 11 and the limiting shaft 34.

[0028] The bottom end of the bulldozer belt 33 is configured as an outward expansion structure in contact with the ground, and an annular blade is provided at the edge of the outward expansion structure.

[0029] It can be seen from Example 1 that when the personnel control the movement of the device inside the cockpit 1, the transmission mechanism operates synchronously. At this time, the driving shaft 13 drives the chain 1 22 on both sides thereof to rotate synchronously, and the chain 1 22 further drives the transmission shaft 21 and the bevel gear 1 23 at the corresponding position to rotate synchronously. The rotation of the bevel gear 1 23 is transmitted to the bevel gear 2 24, and the bevel gear 24 further drives the driven shaft 26 to rotate synchronously through the chain 2 25. Since the driven shaft 26 is connected to the inner contour of the middle section of the bulldozer belt 33, that is, at this time, along with the movement of the entire device, the driven shaft 26 drives the bulldozer belt 33 to rotate synchronously.

[0030] It should be noted that during the movement of the device, the bulldozing belt 33 is always in contact with the ground, and the annular blades arranged at the outer edge of the bottom end of the bulldozing belt 33 rotate synchronously with the bulldozing belt 33. Therefore, when the device is moving, when the annular blades at the bottom end of the bulldozing belt 33 come into contact with plants, the plants can be cut off. The cut plants are conveyed to both sides of the device under the contact friction with the bulldozing belt 33, and sundries such as stones with relatively small adhesion are also conveyed to both sides of the device by the bulldozing belt 33 to complete the obstacle clearing operation.

[0031] On the other hand, during the movement of the device, the tip of the V-shaped shovel 31 contacts the ground to complete the soil breaking operation, so as to reduce the adhesion of the stones in contact with the V-shaped shovel 31 in the soil. Then, along with the rotation and conveyance of the bulldozing belt 33, the obstacle clearing process of the stones is carried out. When the resistance received by the V-shaped shovel 31 during the soil breaking process is relatively large, the V-shaped shovel 31 synchronously squeezes the positioning shaft 3 and slides inside the coupling ring 2. During this process, the compression spring 32 is synchronously compressed. According to the different magnitudes of the resistance received by the V-shaped shovel 31, the compression degree of the compression spring 32 is different. At this time, the inward contraction of the V-shaped shovel 31 further causes the bulldozing belts 33 on both sides of it to deflect at a small angle with the driven shaft 26 as the axis. The limit shaft 34 deflects along with the bulldozing belt 33 and gradually moves away from the first cross beam 11. The slider 36 is connected in a limited sliding manner inside the limit groove 14. At this time, the outward expansion process of the limit shaft 34 moving away from the first cross beam 11 synchronously pulls the telescopic connecting rod 35, the slider 36 and the anti-spring 37. The slider 36 slides inside the limit groove 14, and the telescopic connecting rod 35 and the anti-spring 37 are synchronously stretched.

[0032] The included angle between the two bulldozing belts 33 after deflection is larger than that before deflection, that is, at this time, the two bulldozing belts 33 tend to be flat, and the overall driving force of the bulldozing mechanism on the ground soil increases. Thus, corresponding to the situation where the resistance received by the V-shaped shovel 31 during the bulldozing process is increased, the driving force of the bulldozing mechanism is increased to ensure that the device can smoothly complete the obstacle clearing operation for hard obstacles; when the device crosses the high-resistance area, the resistance received by the V-shaped shovel 31 decreases. At this time, the compression spring 32 rebounds and drives the V-shaped shovel 31 and the positioning shaft 3 to extend, so as to re-achieve the dynamic balance between the elastic potential energy of the compression spring 32 and the resistance received by the V-shaped shovel 31. During this process, the two bulldozing belts 33 deflect synchronously and readjust the included angle between them, so that the bulldozing efficiency of the bulldozing mechanism is dynamically controlled according to the magnitude of the resistance received during the operation process. When leveling the land, a smaller angle is used to improve the obstacle clearing efficiency of the device; when clearing hard obstacles, a larger angle is used to enhance the driving force, thereby realizing the function of dynamic self-balancing of the device's obstacle clearing operation.

[0033] Embodiment 3: Please refer to Figure 6 and Figure 7, This embodiment further elaborates on the basis of Embodiment 2: The middle section at the top of the fixing frame 4 is penetrated and rotatably connected with a worm 41, and a deflection shaft 43 is penetrated and rotatably connected at a position near the top of the fixing frame 4. A worm gear 42 is fixedly connected to the middle section of the deflection shaft 43, and the worm gear 42 is meshed and drivingly connected with the worm 41. On both sides of the outer contour of the deflection shaft 43 near the middle section, downward-extending inclination plates 44 are fixedly connected together.

[0034] As can be seen from Embodiment 1, when the device performs land preparation operations on a slope, it is necessary to control the adjustment mechanism to deflect the lifting mechanism so that the lifting mechanism always maintains a vertical state to achieve the function of horizontal land preparation of the device; during this process, the operator rotates the worm 41 through the control module, and the worm 41 further drives the worm gear 42 to rotate. Since the worm gear 42 is fixedly connected to the deflection shaft 43, and the deflection shaft 43 is further fixedly connected to the inclination plate 44, that is, along with the rotation of the worm gear 42, the deflection shaft 43 rotates synchronously and drives the inclination plate 44 to deflect.

[0035] Since the lifting mechanism is fixedly connected to the lower surface of the inclination plate 44, that is, the lifting mechanism deflects synchronously with the inclination plate 44. When the deflection angle of the inclination plate 44 is the same as the ground slope, the rotation of the worm 41 is stopped, and at this time, the lifting mechanism is in a vertical state; due to the self-locking characteristic of the transmission relationship between the worm 41 and the worm gear 42, that is, the deflection process of the lifting mechanism is also self-locking. Therefore, during the subsequent process of leveling the cultivated land by the lifting mechanism, the resistance of the soil to the lifting mechanism will not cause it to deflect and result in the failure of the horizontal land preparation operation.

[0036] Embodiment 4: Please refer to Figure 6 and Figure 8 , This embodiment further elaborates on the basis of Embodiment 3: The output end of the motor 51 is penetrated and limitedly rotatably connected with a connecting frame 5. A driving wheel 52 is fixedly connected to the output end of the motor 51 on the side of the connecting frame 5 away from the motor 51. A transmission wheel 53 is meshed and drivingly connected to both sides of the driving wheel 52. The transmission wheel 53 is penetrated and rotatably connected with the connecting frame 5. A crank one 54 is fixedly connected to the side of the transmission wheel 53 away from the connecting frame 5. One end of the crank one 54 away from the transmission wheel 53 is penetrated and rotatably connected with a planetary gear 56. A ring gear 55 is meshed and drivingly connected to the outer contour of the planetary gear 56. A crank two 57 is fixedly connected to the side of the planetary gear 56 away from the crank one 54. One end of the crank two 57 away from the planetary gear 56 is penetrated and rotatably connected with a lifting shovel 58.

[0037] The tops of the connecting frame 5 and the ring gear 55 are both fixedly connected to the lower surface of the inclination plate 44.

[0038] As can be seen from Embodiment 4, the deflected lifting mechanism is in a vertical state. At this time, with the movement of the device, the land preparation operation begins. The operator starts the motor 51 through the control module, and the motor 51 drives the driving wheel 52 to rotate synchronously. At this time, the two transmission wheels 53 drive the first crank 54 to rotate synchronously in their meshing state with the driving wheel 52. The rotation of the two first cranks 54 causes the planet gears 56 to rotate circumferentially with the center of the transmission wheel 53 as the axis.

[0039] Since the ring gear 55 is fixedly connected to the lower surface of the inclination plate 44 and the ring gear 55 is in a meshing state with the planet gears 56, during the circumferential rotation of the planet gears 56, under the meshing restriction of the ring gear 55, the planet gears 56 rotate synchronously and further drive the second crank 57 to rotate synchronously. At this time, the other end of the second crank 57 rotates circumferentially with the center of the transmission wheel 53 as the axis and simultaneously rotates circumferentially with the center of the planet gear 56 as the axis, and the two circumferential rotations cancel each other out, resulting in the lifting shovel 58 at the other end of the second crank 57 presenting a reciprocating lifting motion state.

[0040] With the movement of the device, the lifting shovel 58 descends and inserts into the ground soil. If the device performs land preparation operation on a horizontal ground, the motor 51 is stopped when the lifting shovel 58 descends to a preset height. At this time, the depth of the lifting shovel 58 inserted into the ground is the depth of the land preparation operation. During the movement of the device, the horizontal land preparation operation is performed on the ground through the lifting shovel 58; if the device performs land preparation operation on a slope, it is necessary to adjust the balance between the running speed of the lifting mechanism and the overall running speed of the device to achieve different land preparation effects; the soil plowed out during the land preparation process accumulates on the surface of the lifting shovel 58 and gradually accumulates as the device moves forward, and finally is thrown out from the top of the lifting shovel 58.

[0041] When the running speed of the lifting mechanism, that is, the descending speed of the lifting shovel 58, corresponds to the running speed of the device, with the movement of the device, the lifting shovel 58 continues to penetrate into the ground after inserting into the ground. At this time, the movement of the device on the slope causes the overall elevation of the device. During this process, the process of the lifting shovel 58 continuing to penetrate into the ground after inserting into the ground cancels out the process of the overall elevation of the device, so that the lifting shovel 58 continues to complete the horizontal land preparation operation with the movement of the device; when the descending speed of the lifting shovel 58 continuing to penetrate into the ground after inserting into the ground does not correspond to the running speed of the device, different land preparation effects will be presented according to the ratio between the descending speed of the lifting shovel 58 and the running speed of the device.

[0042] Embodiment 5: Please refer to Figure 9 , this embodiment explains the switching principle of the land preparation effect of the device: Set the length of the slope to be leveled as L and the angle of the slope as θ. Then the projected height of this part of the slope on the vertical plane is Lsinθ, and Lsinθ is the leveling height during the slope leveling operation of the device. Set the traveling speed of the device on the slope as V, and the descending speed of the lifting shovel 58 controlled by the lifting mechanism as V1.

[0043] As Figure 9 shown in case a, when the device performs small-scale leveling operations, that is, the length of Lsinθ is less than the maximum lifting and lowering stroke of the lifting mechanism. Along with the advancement of the device, control the descending speed of the lifting shovel 58 as V1 = Vsinθ. At this time, the process of the lifting shovel 58 continuing to penetrate after inserting into the ground cancels out the lifting process of the overall device advancing on the slope, thereby achieving the horizontal leveling effect of the device.

[0044] When the device performs large-scale leveling operations, that is, the length of Lsinθ is much greater than the maximum lifting and lowering stroke of the lifting mechanism, it is necessary to control the device to complete various terraced field leveling effects according to the ground conditions.

[0045] As Figure 9 shown in case b, at this time, the descending speed V1 of the lifting shovel 58 still satisfies the relationship V1 = Vsinθ. When the lifting shovel 58 descends to the limit position and then starts to rise, the reciprocating lifting and lowering of the lifting shovel 58 is used to perform stepped terraced field leveling operations on the slope. During this process, the descending process of the lifting shovel 58 cooperates with the advancing process of the device to complete horizontal leveling, and the rising process of the lifting shovel 58 corresponds to the ridge position between two terraced fields, so as to divide different terraced fields and serve as the catchment area for the next terraced field. At this time, the leveling effect of the device is horizontal terraced field leveling operations.

[0046] As Figure 9 shown in case c, when the descending speed V1 of the lifting shovel 58 satisfies V1 > Vsinθ, the process of the lifting shovel 58 continuing to penetrate after inserting into the ground still continues to descend after canceling out the lifting process of the device advancing on the slope. That is, at this time, the descending process of the lifting shovel 58 corresponds to downward-sloping leveling operations, and the rising process still corresponds to the ridge position between two terraced fields; the single terraced field after the device levels the ground presents a stepped slope situation with higher outside and lower inside. This leveling effect is reverse slope terraced field leveling operations. Reverse slope terraced field leveling operations can effectively improve the site conditions, store water and conserve soil, are suitable for ground conditions with drought and severe soil and water erosion, and effectively reduce the risk of soil erosion after leveling.

[0047] As Figure 9As shown in the d case, when the descending speed V1 of the lifting shovel 58 satisfies V1 < Vsinθ, the process of the lifting shovel 58 continuing to penetrate into the ground after inserting into the ground cannot completely offset the lifting process of the device moving on the slope. At this time, the descending process of the lifting shovel 58 corresponds to the land leveling operation with an upward slope, and the ascending process still corresponds to the ridge position between the two terraced fields; the single terraced field after the device levels the land presents a stepped slope condition with a lower outer and higher inner level. This land leveling effect is the sloping terrace land leveling operation. The sloping terrace land leveling operation can effectively reduce the engineering quantity of the device land leveling operation, increase the infiltration amount of surface runoff, reduce ground erosion to stabilize the land leveling effect, and is applicable to the ground conditions where the risk of soil and water loss does not need to be considered.

[0048] It should be noted that in actual land leveling operations, the descending speed V1 of the lifting shovel 58 can be controlled in real time according to the ground conditions to achieve a combination of various land leveling effects, so as to reasonably utilize the terrain to save the engineering quantity of the device while improving the soil and water conservation benefits.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forestry land site preparation device, comprising a cockpit (1), a clearance component and a site preparation component, characterized in that: On both horizontal longitudinal sides at the bottom end of the cockpit (1), there are first crossbeams (11) fixedly connected. At the bottom end of the first crossbeam (11), there is a second crossbeam (12) fixedly connected. On both horizontal transverse sides of the second crossbeam (12), there is a driving shaft (13) penetrating through and rotatably connected in common. At both ends of the driving shaft (13), there are traveling wheels (15). At one end of each of the two first crossbeams (11), there is a limiting groove (14) facing the outside of the device. The obstacle removal assembly includes a transmission mechanism for synchronizing the traveling state of the device and a bulldozing mechanism for completing the obstacle removal operation. The transmission mechanism includes a coupling ring (2) penetrating through and rotatably connected in a limited manner to the middle section of the driving shaft (13). The bulldozing mechanism includes a positioning shaft (3) penetrating through and slidably connected to the coupling ring (2). The land preparation assembly includes an adjusting mechanism for controlling the land preparation angle and a lifting mechanism for completing the land preparation operation. The adjusting mechanism includes a fixing frame (4) fixedly connected to the upper surface of the first crossbeam (11) at one end away from the limiting groove (14). The lifting mechanism includes a motor (51) serving as the power source for the land preparation operation.

2. The site preparation equipment for forestry land according to claim 1, characterized in that: Inside the cockpit (1), there is a control module and it is signal-connected to the obstacle removal assembly and the land preparation assembly through an electric control system.

3. A forestry land site preparation device according to claim 1, characterized in that: On both sides at the top end of the coupling ring (2), there are transmission shafts (21) penetrating through and rotatably connected. At the end of the transmission shaft (21) away from the coupling ring (2), it penetrates through and is rotatably connected to the corresponding first crossbeam (11). On the outer contour of the end of the transmission shaft (21) away from the coupling ring (2), there is a first chain (22) drivingly connected. The inner contour at the bottom end of the first chain (22) is drivingly connected to the driving shaft (13). At the end of the transmission shaft (21) away from the coupling ring (2), there is a first bevel gear (23) fixedly connected. At the top of the first bevel gear (23), there is a second bevel gear (24) meshing and drivingly connected. The second bevel gear (24) penetrates through and is rotatably connected in a limited manner to the upper surface of the first crossbeam (11). At the top of the second bevel gear (24), there is a second chain (25) drivingly connected. On the inner contour of the end of the second chain (25) away from the second bevel gear (24), there is a driven shaft (26) drivingly connected. The driven shaft (26) penetrates through and is rotatably connected in a limited manner to the first crossbeam (11).

4. A forestry land site preparation device according to claim 1, characterized in that: One end of the positioning shaft (3) far from the coupling ring (2) is fixedly connected with a V-shaped shovel (31). A compression spring (32) sleeved on the outer contour of the positioning shaft (3) is fixedly connected between the V-shaped shovel (31) and the coupling ring (2). Both sides of the V-shaped shovel (31) are rotatably connected with a soil pushing belt (33) through a pin shaft, and the inner contour of the middle section of the soil pushing belt (33) is in transmission connection with the driven shaft (26). A limiting shaft (34) is in transmission connection on the inner contour of one end of the soil pushing belt (33) far from the V-shaped shovel (31). The top end of the limiting shaft (34) penetrates through and is rotatably connected with a telescopic connecting rod (35). One end of the telescopic connecting rod (35) far from the limiting shaft (34) is fixedly connected with a slider (36), and the slider (36) is slidably connected inside the limiting groove (14). A resisting spring (37) sleeved on the outer contour of the telescopic connecting rod (35) is arranged between the cross beam one (11) and the limiting shaft (34).

5. The forestry land soil preparation equipment according to claim 4, characterized in that: The bottom end of the soil pushing belt (33) is arranged as an outward expanding structure in contact with the ground, and annular blades are arranged at the edge of the outward expanding structure.

6. The site preparation equipment for forestry land according to claim 1, characterized in that: The middle section of the top end of the fixing frame (4) is penetrated and rotatably connected with a worm (41). The position of the fixing frame (4) close to the top end is penetrated and rotatably connected with a deflecting shaft (43). A worm gear (42) is fixedly connected to the middle section of the deflecting shaft (43), and the worm gear (42) is in meshing transmission connection with the worm (41). Two sides of the outer contour of the deflecting shaft (43) close to the middle section are jointly fixedly connected with downward extending inclination plates (44).

7. A forestry land site preparation device according to claim 1, characterized in that: The output end of the motor (51) penetrates through and is rotationally connected with a connecting frame (5) with a limit. The output end of the motor (51) is fixedly connected with a driving wheel (52) located on the side of the connecting frame (5) far from the motor (51). Both sides of the driving wheel (52) are in meshing transmission connection with a transmission wheel (53). The transmission wheel (53) penetrates through and is rotationally connected with the connecting frame (5). One side of the transmission wheel (53) far from the connecting frame (5) is fixedly connected with a crank one (54). One end of the crank one (54) far from the transmission wheel (53) penetrates through and is rotationally connected with a planetary gear (56). The outer contour of the planetary gear (56) is in meshing transmission connection with a gear ring (55). One side of the planetary gear (56) far from the crank one (54) is fixedly connected with a crank two (57). One end of the crank two (57) far from the planetary gear (56) penetrates through and is rotationally connected with a lifting shovel (58).

8. A forestry land site preparation device according to claim 7, characterized in that: The top ends of the connecting frame (5) and the gear ring (55) are both fixedly connected to the lower surface of the inclination plate (44).

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