High and steep slope greening seeding machine for ecological restoration of mine

Abstract

The invention discloses a high and steep slope regreening seeder for ecological restoration of mines, which belongs to the technical field of ecological restoration and comprises a tension net group, a seeding crane and a traction mechanism. And the tensioning net group is arranged on the side slope to form a plurality of fixed nodes and tensioning cables among the nodes. And the traction mechanism is used for forming traction force between the tension cable and the seeding travelling crane. The tensioning net set constructs a cable-shaped supporting structure on the surface of the slope in advance, and a stable moving track is formed through a tensioning cable. The interaction force of the traction mechanism and the tensioning cable provides auxiliary traction force for the seeding travelling crane, the traction force and the driving force of the seeding travelling crane form a double-point-position driving mode, the overturning moment of the seeding travelling crane is balanced, and the stability and safety of the seeding travelling crane on steep and broken slopes are improved. The seeding travelling crane moves along a set route of the tension cable, the limitation of terrain adaptability of traditional equipment is broken through, and the problem that a traditional seeder cannot automatically climb on an abrupt slope is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological restoration, and specifically relates to a revegetation seeding machine for high-steep slopes in mine ecological restoration. Background Art

[0002] With the large-scale development of global mineral resources, the problems of exposed high-steep slopes, vegetation damage, and soil erosion caused by mine exploitation activities are becoming increasingly severe, seriously threatening the safety of regional ecosystems. Due to the steep terrain, barren substrate, and poor stability, high-steep slopes have become the key and difficult points in mine ecological restoration.

[0003] At present, the ecological restoration technologies for high-steep slopes mainly include the following methods: manual seeding and transplanting, which rely on manual climbing or basket operations for vegetation planting, have problems such as low efficiency, high risk, uneven coverage, and are difficult to adapt to complex slope morphologies. Hydraulic spraying technology forms a slurry by mixing substrates, seeds, and adhesives and sprays it onto the slope, but limited by the spraying pressure and adhesion, matrix slippage and seed loss are likely to occur on steep slopes, and the equipment has high energy consumption and poor adaptability to rocky slopes. The laying of ecological bags / vegetation planting rolls fixes the pre-planted grass seeds on the slope. Although it can fix the soil in the short term, it has defects such as high material costs, construction relying on manual labor, and insufficient long-term stability, especially not suitable for uneven broken rock walls.

[0004] The seeding machine integrates functions such as automatic traveling, soil turning, and seeding, and has the advantages of intelligent and precise seeding, multi-functional collaborative operation, and high seed survival rate. However, the seeding machine is only suitable for operating on small-slope terrains, difficult to climb on steep and broken slopes, and prone to equipment side-slip or overturning.

[0005] The patent with the publication number CN115735485A discloses a seeding device for automatic planting of Chinese medicinal materials on slopes, which climbs on the slope through a traction mechanism to pull a traveling mechanism, and then realizes the seeding operation. However, the traction operation requires large equipment such as a winch, which has high requirements for the site area and slope bearing capacity of high-steep slopes. In addition, when repairing high-steep slopes, several steps are usually set in the middle section, which are used to stabilize the slope and facilitate construction. The cables of the winch are difficult to automatically adapt to the slope changes caused by these steps. If the winch is transported to each step, there are problems such as a large amount of construction work and limited site. Summary of the Invention

[0006] The purpose of the present invention is to provide a revegetation seeding machine for high-steep slopes in mine ecological restoration to solve the problems mentioned in the above prior art.

[0007] Provide a revegetation seeding machine for high-steep slopes in mine ecological restoration, including:

[0008] The tension net group is arranged on the slope to form multiple fixed nodes and tension cables between the nodes;

[0009] The seeding vehicle;

[0010] The traction mechanism is used to form a traction force between the tension cable and the seeding vehicle.

[0011] The tension net group constructs a cable-like support structure on the slope surface, enabling the traction path of the tension cable to pre-adapt to the slopes of different ranges on the slope, avoiding the need for large-scale attitude adjustment of the seeding vehicle and the traction mechanism to adapt to slope changes. The seeding vehicle has two sets of drive systems, namely the wheel system drive of the seeding vehicle itself and the auxiliary traction force provided by the traction mechanism at the high position of the seeding vehicle, providing a second path support for the seeding vehicle in addition to the slope surface and balancing the overturning moment of the seeding vehicle. The traction force and its own driving force cooperate to significantly improve the anti-overturning ability of the equipment on steep slopes, providing a basis for the seeding vehicle to sow stably on steep slopes.

[0012] As a further embodiment of the present invention: it further includes a lifting mechanism, and the lifting mechanism is arranged between the traction mechanism and the seeding vehicle to drive the traction mechanism to lift.

[0013] The lifting mechanism is used to dynamically adjust the height of the traction mechanism during the travel of the seeding vehicle to adapt to the stepped or uneven terrain of the slope surface, ensuring that a certain pressure range is always maintained between the seeding vehicle and the slope surface. In addition, in areas where there is a large difference in height between the tension cable and the ground, raising the height of the traction mechanism can prevent the tension cable from being subjected to excessive tension and thus being broken.

[0014] As a further embodiment of the present invention: a yaw sensor is arranged between the lifting mechanism and the seeding vehicle. The yaw sensor is used to sense the relative attitude between the traction mechanism and the seeding vehicle. Since the traction mechanism follows the established route of the tension cable, if the travel route of the seeding vehicle deviates, it will cause redundant force between the seeding vehicle and the lifting mechanism, which will cause an overturning moment for the seeding vehicle. Therefore, it is necessary to sense the deflection situation in a timely manner and adjust the attitude of the seeding vehicle to make the seeding vehicle travel along the established route.

[0015] As a further embodiment of the present invention: the traction mechanism includes a hydraulic vise and a wheel system, and the hydraulic vise is used to adjust the pressing force of the wheel system on the tension cable.

[0016] The hydraulic vise dynamically controls the magnitude of the traction force by adjusting the clamping pressure of the wheel system on the tension cable to adapt to the driving requirements under different slopes. The hydraulic vise adjusts the clamping force in real time according to the slope and load to avoid wheel system slipping or cable damage.

[0017] As a further embodiment of the present invention: the hydraulic vise includes a fixed jaw and a movable jaw, the wheel train includes an actuator, a reversing reducer, a driving wheel and a driven wheel, the driving wheel is rotatably connected to the fixed jaw, the driven wheel is rotatably connected to the movable jaw, and the driving wheel and the actuator are connected via a reversing reducer.

[0018] The change in the distance between the movable clamp and the fixed clamp realizes the adaptive clamping of the gear train. The driving wheel is driven by the actuator through the reversing reducer to rotate forward and reverse. Under the clamping action of the driving wheel and the driven wheel on the tensioning cable, friction is generated between the gear train and the surface of the tensioning cable. The driven wheel follows the driving wheel and rolls synchronously on the surface of the tensioning cable, thereby generating traction.

[0019] As a further embodiment of the present invention: it also includes an extension arm, both ends of the extension arm are provided with traction mechanisms, and the two ends of the extension arm are respectively matched with corresponding tensioning cables through the traction mechanisms.

[0020] The extension arm spans across two parallel cables, and the traction mechanisms at both ends form double-cable traction, which can expand the stable surface of the seeding vehicle, enhance the lateral stability of the seeding vehicle, and avoid the risk of overturning caused by the swing and lateral overturning moment of single-cable traction.

[0021] As a further embodiment of the present invention: a telescopic mechanism is provided between the extension arm and the traction mechanism.

[0022] The telescopic mechanism is used to adjust the length of the extension arm to match the tension cables with different spacings. There may be spacing control errors during the construction of the tension cables. The telescopic mechanism can adjust the length of the extension arm in real time based on the spacing changes sensed by the internal tension and compression sensors to ensure the stability of the traction mechanism's clamping of the tension cables and prevent the tension cables from detaching from the traction mechanism.

[0023] As a further embodiment of the present invention: the tensioning net group also includes a support frame and an anchor point, and the support frame and the anchor point are detachably connected.

[0024] Each anchor point can be constructed in advance for the installation and fixation of the support frame, so that the construction and sowing operations can be carried out in a streamlined manner. The support frame is not a permanent structure. After sowing a certain section of the slope, the support frame can be disassembled from each anchor point and put into the sowing operation of the next section of the slope to save construction materials. The detachable method reduces the difficulty of installing the support frame, and the project process nodes of each construction section can be flexibly planned and adjusted.

[0025] As a further embodiment of the present invention: The bottom of the anchor point is fixed to the slope through a pile foundation or a rock bolt. As the end structure for bearing and transmitting the acting force of the seeding vehicle, the pile foundation or the rock bolt can significantly enhance the fixing strength of the support frame. In addition, when seeding is completed and the support frame is removed, each anchor point does not need to be demolished and can be used as a structural member to enhance the strength of the high-steep slope. This anchoring treatment method is a conventional treatment method for slope anti-collapse and soil and water conservation, enabling a single structural part to participate in two slope treatment projects.

[0026] As a further embodiment of the present invention: A connecting member is provided between the support frame and the tension cable. The connecting member includes a hinge support and two clamping members. The hinge support is fixedly connected to the support frame, and the two clamping members are respectively hinged to the hinge support.

[0027] The two clamping members are respectively connected to the hinge support through hinges. The included angle formed by the two clamping members can be freely adjusted to meet the specific tension angles formed by the tension cables at both ends to adapt to the slope, so that the connecting member can be used as a general component.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The tension net group pre-constructs a cable-like support structure on the slope surface and forms a stable moving track through the tension cables. The interaction force between the traction mechanism and the tension cables provides auxiliary traction force for the seeding vehicle. The traction force and the driving force of the seeding vehicle itself form a two-point driving mode, balancing the overturning moment of the seeding vehicle and improving the stability and safety of the seeding vehicle on steep and broken slopes. The seeding vehicle moves along the established route of the tension cable, breaking through the terrain adaptability limitation of traditional equipment and solving the problem that traditional seeders cannot climb independently on steep slopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present drawings or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present drawings. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0031] Figure 1 It is the overall structure schematic diagram A of the seeder provided by the present invention;

[0032] Figure 2 It is the overall structure schematic diagram B of the seeder provided by the present invention;

[0033] Figure 3 It is Figure 1 The enlarged view of area A in

[0034] Figure 4 is Figure 2 an enlarged view of area B in

[0035] Figure 5 a schematic structural view of the traction mechanism provided by the present invention;

[0036] Figure 6 a schematic structural view of the connecting member provided by the present invention.

[0037] In the figure: 1, tensioning net group; 11, tensioning cable; 12, support frame; 13, anchor point; 14, connecting member; 141, hinge support; 142, clamping member; 2, seeding vehicle; 3, traction mechanism; 31, hydraulic vise; 311, fixed vise; 312, movable vise; 32, gear train; 321, actuator; 322, reversing speed reducer; 323, driving wheel; 324, driven wheel; 4, lifting mechanism; 5, extension arm; 51, telescopic mechanism; 6, yaw sensor. Specific embodiments

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0039] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present invention. For those of ordinary skill in the art, the present invention can also be applied to other similar scenarios based on these drawings without making creative efforts. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed by the present invention, some design, manufacturing or production changes based on the technical content disclosed by the present invention are only conventional technical means and should not be understood that the content disclosed by the present invention is insufficient.

[0040] However, there will be cases where unnecessary detailed descriptions are omitted. For example, there are cases where detailed descriptions of well-known matters are omitted and repeated descriptions of actually identical structures are omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate the understanding of those skilled in the art. In addition, the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present invention and are not intended to limit the subject matter recited in the claims.

[0041] Please refer to Figures 1-4As shown in the figure, the high-steep slope revegetation seeding machine for mine ecological restoration in the embodiment of the present invention includes a tension net group 1, a seeding vehicle 2, and a traction mechanism 3. The tension net group 1 is arranged on the slope to form a plurality of fixed nodes and tension cables 11 between the nodes. The traction mechanism 3 is used to form a traction force between the tension cable 11 and the seeding vehicle 2.

[0042] Before seeding operations, the high-steep slope is pre-treated. The pre-treatment items include surface leveling, slope design, and step formation, so that the slope has a stable working surface and creates a good growth environment for sowing seeds. After the slope pre-treatment is completed, the tension net group 1 pre-lays a cable-like support structure on the slope surface, and forms a flexible moving track through the fixed nodes and the tension cables 11, so that the traction path pre-adapts to the slope change of different sections of the slope. The seeding vehicle 2 integrates the functions of excavation, seeding, and soil covering, and climbs along the slope surface driven by its own wheel system. The traction mechanism 3 is arranged on the seeding vehicle 2, clamps the tension cable 11, and forms a frictional force between the driving component and the tension cable 11 to provide auxiliary traction force, which forms a coordinated drive with the self-driving force of the seeding vehicle 2.

[0043] The traction force provided by the traction mechanism 3 acts at a high position of the seeding vehicle 2, and forms a moment balance with the self-driving force of the seeding vehicle 2, avoiding the overturning of the equipment caused by the center of gravity deviation. The preset path of the tension cable 11 is the seeding path of the seeding vehicle 2. The path is preferably a straight line along the slope direction, and multiple straight paths are closely arranged along the slope width direction.

[0044] The tension net group 1 includes a support frame 12 and an anchor point 13. The support frame 12 is composed of a supporting column and a flange extending laterally. The anchor point 13 serves as a fixed point of the support frame 12 and is set on the slope surface before seeding operations. The connection between the support frame 12 and the anchor point 13 is detachable, and the support frame 12 is quickly connected to the anchor point 13 through a buckle or a bolt.

[0045] Before seeding operations, the support frame 12 is erected and removed after seeding operations, and it is a non-permanent component. When carrying out large-area slope seeding operations, since the support frames 12 on each seeding path operate independently, the support frames 12 between each seeding path can be flexibly allocated. After the seeding operations of the previous path group are completed, the support frame 12 is removed and assembled to the next path group, and there will be no situation where the construction sections interfere with each other and restrict each other, resulting in chaos in the project construction period management.

[0046] The support frame 12 is formed by steel pipes, and adjacent support frames 12 can be fixed by diagonal braces to form a mutual load-bearing structure. The support frame 12 has a flange structure extending to the side, and the tension cable 11 is fixed to the end of the flange, so that the tension cable 11 can be located at the top of the traction end of the seeding vehicle 2.

[0047] In one embodiment, please refer to Figure 1 and Figure 3 As shown, there is only a single traction mechanism 3 between the seeding traveling vehicle 2 and the tension cable 11, that is, each seeding path is tractioned by a single tension cable 11. In this embodiment, the flange extension length of the support frame 12 is relatively large and needs to extend to the top of the middle area of the seeding traveling vehicle 2. Each support frame 12 needs to bear greater internal forces such as bending moment, but the structure of the seeding traveling vehicle 2 is simpler and the operation is more convenient.

[0048] In one embodiment, please refer to Figure 2 and Figure 4 As shown, the seeding traveling vehicle 2 is respectively tractioned with two tension cables 11 through corresponding traction mechanisms 3. An extension arm 5 is arranged on the seeding traveling vehicle 2. The middle part of the extension arm 5 is fixed to the seeding traveling vehicle 2. The extension arm 5 has arm ends extending to both sides of the seeding traveling vehicle 2, and each arm end is provided with a traction mechanism 3. The traction mechanisms 3 at both ends of the extension arm 5 respectively clamp two parallel tension cables 11 to form a lateral stable traction surface. This traction method eliminates the lateral overturning moment of the seeding traveling vehicle 2 and has greater traveling stability.

[0049] Furthermore, a telescopic mechanism 51 is arranged between the extension arm 5 and the traction mechanism 3. The telescopic mechanism 51 is driven by hydraulic pressure or air source to telescopically adjust the arm extension to adjust the relative distance between the two traction mechanisms 3, and is used to adjust the cooperation posture between the two traction mechanisms 3 and the tension cables 11 on both sides. Affected by the terrain and construction errors, the relative distance between the two tension cables 11 may change on the traveling path. To avoid the generation of lateral stress on the tension cables 11 under the traction of the traction mechanism 3, the telescopic mechanism 51 adapts to telescopically adjust the arm extension of the extension arm 5 according to the spacing of the tension cables 11.

[0050] A tension and compression sensor may be arranged between the telescopic mechanism 51 and the traction mechanism 3. When the lateral stress of the tension cable 11 changes, the stress is conducted to the tension and compression sensor, and the sensor senses the stress change and transmits a control signal to the telescopic mechanism 51 to control the action of the telescopic mechanism 51. Generally, when the tension and compression sensor senses an increase in the tensile stress, it indicates that the distance between the two tension cables 11 is gradually getting farther, and the telescopic mechanism 51 extends to increase the arm extension of the extension arm 5; when the tension and compression sensor senses an increase in the compressive stress, it indicates that the distance between the two tension cables 11 is gradually getting closer, and the telescopic mechanism 51 retracts to reduce the arm extension of the extension arm 5.

[0051] The seeder further includes a lifting mechanism 4. The lifting mechanism 4 is arranged between the traction mechanism 3 and the seeding traveling vehicle 2 to drive the traction mechanism 3 to lift. The lifting mechanism 4 uses a hydraulic cylinder or an electric push rod to drive the traction mechanism 3 to lift, and a pressure sensor is built in to monitor the tensile and compressive stress in real time. The lifting mechanism 4 adjusts the height of the traction mechanism 3 in real time according to the slope height so that the seeding traveling vehicle 2 maintains a constant pressure with the slope.

[0052] In a specific embodiment, when the pressure between the sowing carriage 2 and the slope is insufficient, resulting in insufficient friction for the sowing carriage 2 to travel, or the traction force of the traction mechanism 3 is too large and the driving force of the sowing carriage 2 is insufficient, resulting in instability of the center of gravity of the sowing carriage 2, the sowing carriage 2 may tip forward. At this time, the lifting mechanism 4 can drive the traction mechanism 3 to lift, and the tensioning cable 11 increases the tension, thereby increasing the pressure on the sowing carriage 2, increasing the friction between the sowing carriage 2 and the slope, and driving the sowing carriage 2 to reset its posture.

[0053] For further information, see Figure 3 and Figure 4 As shown, a yaw sensor 6 is provided between the lifting mechanism 4 and the seeding carriage 2. The yaw sensor 6, such as a gyroscope or an inclination sensor, can detect the relative deflection angle between the seeding carriage 2 and the traction mechanism 3 in real time, and adjust the driving torque of the wheel system of the seeding carriage 2 through the controller to correct the traveling direction. The yaw sensor 6 can also use a non-contact electromagnetic torque sensor or a Hall sensor to judge the deflection according to electromagnetic induction, and then correct the seeding carriage 2.

[0054] The non-contact electromagnetic torque sensor or Hall sensor can realize non-contact sensing. The lifting mechanism 4 and the seeding carriage 2 are rotationally connected and axially force-bearing through a bidirectional tapered roller bearing, so that the seed drill has greater structural strength and deflection sensing accuracy.

[0055] Specifically, see Figures 3-5 As shown, the traction mechanism 3 includes a hydraulic vise 31 and a gear train 32. The hydraulic vise 31 drives the two clamping surfaces to move through a hydraulic pump, and has a built-in pressure feedback valve to adjust the clamping pressure of the gear train 32 on the tensioning cable 11. The hydraulic vise 31 can adjust the clamping pressure of the gear train 32 according to the slope, and the clamping force matches the traction force to reduce the slip rate of the gear train 32.

[0056] The hydraulic vise 31 includes a fixed clamp 311 and a movable clamp 312, and the gear train 32 includes an actuator 321, a reversing reducer 322, a driving wheel 323 and a driven wheel 324. The hydraulic vise 31 drives the movable clamp 312 to move toward the fixed clamp 311 through a hydraulic pump, thereby adjusting the clamping pressure of the driving wheel 323 and the driven wheel 324 on the tensioning cable 11. The actuator 321 can be a servo motor, and the actuator 321 performs deceleration and reversing through the reversing reducer 322, adjusts the transmission ratio, and drives the driving wheel 323 to rotate forward and reverse. Since there is a large friction between the driving wheel 323 and the driven wheel 324 and the tensioning cable 11, when the driving wheel 323 rotates and rolls, the driven wheel 324 rolls synchronously under the action of the friction. The forward and reverse rotation of the driving wheel 323 supports the reciprocating movement of the sowing vehicle 2.

[0057] The driving wheel 323 and the driven wheel 324 can both be V-grooved wheels, or the driving wheel 323 is a V-grooved wheel while the driven wheel 324 is a flat wheel, and the two cooperate to prevent the cable from slipping out.

[0058] The bottom of the anchor point 13 is fixed to the slope through a pile foundation or a rock bolt. The rock bolt is driven into the slope rock mass at a certain inclination angle, and the pile foundation is vertically driven into the slope rock mass. The top of the rock bolt or the pile foundation is fixed to the anchor point 13 through a flange. The rock bolt and the pile foundation not only fix the support frame 12 but also serve as a slope reinforcement structure, improving the anti-sliding ability of the slope and preventing the slope from collapsing. After the slope repair is completed, the rock bolt or the pile foundation is retained to continuously enhance the slope stability, and long-term stability benefits can be achieved.

[0059] Please refer to Figures 4-6 As shown, a connecting member 14 is provided between the support frame 12 and the tension cable 11. The connecting member 14 includes a hinge support 141 and two clamping members 142. The clamping member 142 has an arc-shaped card slot and is connected to the hinge support 141 through a hinge and can rotate freely by a certain angle. The clamping member 142 clamps and bolts the tension cable 11 through the two card slots on both sides, supporting the adjustment of the tension angle of the tension cable 11 within a certain slope range.

[0060] Since the fixed jaw 311 and the movable jaw 312 of the hydraulic vise 31 have a one-way opening, this opening part can smoothly pass through the hinge support 141 part. And the thickness increase brought by the clamping member 142 to the tension cable 11 can be automatically adjusted by the movement of the movable jaw 312 to ensure that the connecting member 14 does not interfere with the passage of the hydraulic vise 31.

[0061] It should be noted that the present invention is not limited to the above embodiments. The above embodiments are only examples, and embodiments having the same composition and the same function and effect as the technical idea within the technical solution scope of the present invention are all included in the technical scope of the present invention. In addition, within the scope not departing from the gist of the present invention, various deformations that can be thought of by those skilled in the art are applied to the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of the present invention.

Claims

1. A high steep slope regreening seeder for mine ecological restoration, characterized in that: include: A tensioning net group (1) is arranged on the slope to form a plurality of fixed nodes and tensioning cables (11) between the nodes; Seeding crane (2); A traction mechanism (3) is used to generate traction force between the tensioning cable (11) and the sowing carriage (2).

2. A high steep slope regreening seeder for mine ecological restoration according to claim 1, characterized in that: It also comprises a lifting mechanism (4), wherein the lifting mechanism (4) is arranged between the traction mechanism (3) and the sowing vehicle (2) and is used for driving the traction mechanism (3) to rise and fall.

3. A high steep slope regreening seeder for mine ecological restoration according to claim 2, characterized in that: A yaw sensor (6) is provided between the lifting mechanism (4) and the sowing vehicle (2).

4. A high steep slope regreening seeder for mine ecological restoration according to claim 1, characterized in that: The traction mechanism (3) comprises a hydraulic vise (31) and a wheel train (32); the hydraulic vise (31) is used to adjust the pressing force of the wheel train (32) on the tensioning cable (11).

5. A high and steep slope regreening seeder for mine ecological restoration according to claim 4, characterized in that: The hydraulic vise (31) comprises a fixed jaw (311) and a movable jaw (312); the wheel train (32) comprises an actuator (321), a reversing reducer (322), a driving wheel (323) and a driven wheel (324); the driving wheel (323) is rotatably connected to the fixed jaw (311); the driven wheel (324) is rotatably connected to the movable jaw (312); and the driving wheel (323) and the actuator (321) are transmission-connected via the reversing reducer (322).

6. The high and steep slope regreening seeder for mine ecological restoration according to claim 1 is characterized in that: It also comprises an extension arm (5), both ends of which are provided with traction mechanisms (3), and the two ends of the extension arm (5) are respectively matched with corresponding tensioning cables (11) through the traction mechanisms (3).

7. A high steep slope regreening seeder for mine ecological restoration according to claim 6, characterized in that: A telescopic mechanism (51) is provided between the extension arm (5) and the traction mechanism (3).

8. The high and steep slope regreening seeder for mine ecological restoration according to claim 1 is characterized in that: The tensioning net group (1) further comprises a support frame (12) and an anchor point (13), and the support frame (12) and the anchor point (13) are detachably connected.

9. A high steep slope regreening seeder for mine ecological restoration according to claim 8, characterized in that: The bottom of the anchor point (13) is fixed to the slope via a pile foundation or an anchor rod.

10. The high and steep slope regreening seeder for mine ecological restoration according to claim 8, characterized in that: A connecting member (14) is provided between the support frame (12) and the tensioning cable (11), and the connecting member (14) comprises a hinge support (141) and two clamping members (142); the hinge support (141) is fixedly connected to the support frame (12), and the two clamping members (142) are respectively hinged to the hinge support (141).

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