Grabber with dual-power hydraulic drive system

Abstract

The present invention belongs to the technical field of material grabbing machines, specifically a material grabbing machine with a dual-power hydraulic drive system, which includes a frame assembly. A drive assembly is provided at the bottom of the frame assembly. One side of the top of the frame assembly is movably connected to a suspension assembly, and the other end of the suspension assembly is provided with a grabbing assembly; the frame assembly includes a vehicle frame; the drive assembly includes a diesel engine and an electric motor. A main valve is provided on one side of the vehicle frame, and a fuel tank is provided on the other side of the vehicle frame; the suspension assembly includes a bending arm and a gooseneck two-arm; the grabbing assembly includes two grabbing buckets. A fixed frame is provided above the grabbing bucket. Two support plates are symmetrically provided on the inner wall of the grabbing bucket, and ventilation holes are opened inside the support plates; this dual-power hydraulic drive system is simple to operate, safe and stable, reduces labor intensity, improves work efficiency, reduces production costs, expands the operation range, realizes maintenance work without shutting down the machine, and further improves the grabbing efficiency and grabbing effect of wood.

Description

Technical Field

[0001] The present invention belongs to the technical field of material handling machines, specifically a material handling machine with a dual-power hydraulic drive system. Background Art

[0002] Currently, due to the limited space of wood processing enterprises, during the peak season of wood cutting, the raw materials collected in excess need to be stacked and palletized. The common log grapple of a material handling machine is suspended below the main boom through a wire rope connection for stacking. There is also a material handling machine that uses an excavator for material loading and unloading, and this material handling machine uses a diesel engine as the power to drive a hydraulic pump to achieve various actions; the above two are common technologies for realizing the transfer and stacking of wood.

[0003] Chinese Patent Application CN116553205A discloses a material handling machine, having: a main machine; a hopper, the hopper having two or more hopper flaps, capable of excavating and grasping materials by changing from an open state to a closed state; a hopper drive and holding mechanism, one end of the hopper drive and holding mechanism being connected to the top of the hopper; this material handling machine has great difficulty in grasping materials and low grasping accuracy.

[0004] Chinese Patent CN108622653B provides a grasping and feeding robot, including a moving unit, a bottom plate, a rotating and lifting unit, a support plate, a slider A, a slide rail A, a rack and rod plate, a first motor mounting seat, a grasping unit, a first motor, a gear, a second motor, a flange adapter plate, characterized in that: the two moving units are respectively installed on both sides of the bottom plate; this material handling machine has low grasping efficiency and poor grasping effect.

[0005] Most of the above-mentioned material handling machines have a single-power hydraulic drive system. When the hydraulic drive system is damaged, it requires a long time for repair, thereby reducing the subsequent normal grasping efficiency.

[0006] After the material handling machine grasps wood, a large amount of impurities often adhere to the outer surface of the wood. If the impurities are not cleaned in time, it will not only pollute the inner wall of the grasping bucket, but also correspondingly reduce the quality of the wood.

[0007] After the wood is grasped, the distribution of the wood inside the grasping bucket is uneven. Then, when the wood is transported and recycled subsequently, the wood is prone to shaking and collision inside the grasping bucket, reducing the safety and stability of the wood and the grasping bucket.

[0008] At the same time, when the wood rotates with the grasping bucket, the wood will also impact and collide with the inner wall of the grasping bucket under the action of centrifugal force, thereby causing damage to the grasping bucket.

[0009] And when the grab bucket transfers the wood to the top of the vehicle for recycling, if the two grab buckets are opened to both sides, the wood inside the grab bucket will fall directly onto the top of the vehicle, which will not only affect the stability and safety of the vehicle, but also cause the risk of impact and cracking of the wood. Summary of the invention

[0010] In view of the above problems, the present invention provides a material grabber with a dual-power hydraulic drive system.

[0011] To achieve the above object, the present invention provides the following technical solution: a material grabber with a dual-power hydraulic drive system, comprising a frame assembly, a driving assembly is provided at the bottom of the frame assembly, a suspension assembly is movably connected to one side of the top of the frame assembly, and a grab assembly is provided at the other end of the suspension assembly;

[0012] The frame assembly includes a frame;

[0013] The driving assembly includes a diesel engine and an electric motor, a main valve is provided on one side of the frame, and a fuel tank is provided on the other side of the frame;

[0014] The suspension assembly includes a bending arm and a gooseneck arm;

[0015] The grabbing assembly includes two grabbing buckets, a fixing frame is provided above the grabbing bucket, two support plates are symmetrically provided on the inner wall of the grabbing bucket, ventilation holes are opened inside the support plates, connecting holes are evenly opened on one side of the ventilation holes, a sealing slider is sealingly and slidably connected inside the connecting holes, arc-shaped support grooves are opened on both sides of the sealing slider, pressure sensors are provided on the inner walls of the arc-shaped support grooves, and movable scrapers are slidably connected on both sides of the support plates.

[0016] The present invention obtains the squeezing force of the wood on the arc-shaped supporting groove according to the pressure value detected by the pressure sensor, and adjusts the position of the wood accordingly, thereby ensuring stable and accurate grabbing and transportation of the wood; and in the transportation process, the moving distance of the sealing slider inside the connecting hole is correspondingly adjusted with the help of the change in the pressure value detected by the pressure sensor, thereby further improving the supporting stability of the arc-shaped supporting groove for the wood; at the same time, the moving distance of the moving scraper is correspondingly adjusted during the movement of the sealing slider, thereby achieving the wind-cleaning effect of scraping the inner wall of the grab bucket; and when the grab bucket moves to above the vehicle, multiple sealing sliders move downward in turn and retract into the connecting hole, thereby achieving stable and continuous unloading and recovery of the wood inside the grab bucket.

[0017] Preferably, the bottom of the frame is rotatably connected to a revolving platform, two transmission parts are symmetrically provided on both sides of the revolving platform, the input end of the transmission part is provided with a driving part, the outer surface of the transmission part is transmission-connected to a sprocket, and a plurality of telescopic support parts are evenly provided on the bottom of the revolving platform.

[0018] Preferably, one side of the vehicle frame is provided with a ladder. A plurality of guardrails are provided at the top of the ladder. The side wall of the guardrail is fixedly connected to the side wall of the vehicle frame. A control room is provided on one side of the top of the vehicle frame, and a power distribution cabinet is provided on the other side of the top of the vehicle frame. The power distribution cabinet is electrically connected to the control room.

[0019] Preferably, the bottoms of the diesel engine and the electric motor are both fixedly connected to the top of the vehicle frame. The output end of the diesel engine is connected with a first main pump through an elastic coupling. The input end of the first main pump is communicated with the output end of the fuel tank. A first one-way valve is provided at the output end of the first main pump. The output end of the first one-way valve is communicated with the input end of the main valve, and the flow direction of the first one-way valve is from the first main pump to the main valve end unidirectionally.

[0020] Preferably, the output end of the electric motor is provided with a second main pump through an elastic coupling. The input end of the second main pump is communicated with the output end of the fuel tank. A second one-way valve is provided at the output end of the second main pump. The output end of the second one-way valve is communicated with the input end of the main valve, and the flow direction of the second one-way valve is from the second main pump to the main valve end unidirectionally.

[0021] Preferably, a positioning seat is provided on one side of the top of the vehicle frame. The top of the positioning seat is hinged to the bottom of the bending arm. The top of the bending arm is hinged to the end of the gooseneck second arm. A main hydraulic rod is hinged to the top of the positioning seat. The output end of the main hydraulic rod is hinged to the side wall of the bending arm through a hinge seat. A negative hydraulic rod is provided on the side wall of the main hydraulic rod. The output end of the negative hydraulic rod is hinged to the side wall of the gooseneck second arm through a hinge seat.

[0022] Preferably, a connecting seat is hinged to the bottom of the gooseneck second arm. An activity seat is hinged to the bottom of the connecting seat. A protective cover is provided at the bottom of the activity seat. A rotating gear is rotatably connected to the bottom center of the protective cover through a central bearing. The bottom of the rotating gear is fixedly connected to the top of the fixed frame. An installation cover is provided on the side wall of the activity seat. A rotating motor is provided at the top of the installation cover. The bottom output end of the rotating motor passes through the installation cover and is provided with a driving gear. The driving gear meshes with the rotating gear.

[0023] Preferably, an elastic abutting block is provided at the bottom of the fixed frame. Rotating rods are rotatably connected to both sides of the fixed frame. The outer surface of the rotating rod is rotatably connected to the inner wall of the grab bucket through a bearing. A limiting rod is provided on the inner wall of the grab bucket. The other end of the limiting rod is rotatably connected to the outer surface of the rotating rod through a bearing. Hydraulic clamping rods are symmetrically provided on both side walls of the fixed frame. The bottom output end of the hydraulic clamping rod is rotatably connected to the inner wall of the limiting rod. The output ends of the main valve are all communicated with the input ends of the main hydraulic rod, the negative hydraulic rod and the hydraulic clamping rod.

[0024] Preferably, a plurality of reinforcing ribs are provided on the outer surface of the grab bucket, a diagonal bracing surface is provided at the end of the support plate, a plurality of discharge holes are uniformly formed in the grab bucket and penetrate through the reinforcing ribs, a blower is provided on one side of the grab bucket, the output end of the blower penetrates through the reinforcing ribs and the support plate and is communicated with the ventilation holes, a plurality of electric push rods are uniformly provided at the inner bottom of the ventilation holes, the output end of the electric push rod is fixedly connected to the side wall of the sealing slider, an elastic pad is provided on the inner wall of the arc-shaped support groove and is matched with the outer surface of the wood, and the pressure sensor is used to detect the pressure value received by the side wall of the arc-shaped support groove.

[0025] Preferably, one end of the communication hole away from the ventilation hole penetrates through the support plate and is communicated with the inner cavity of the grab bucket, a plurality of docking holes are uniformly provided in the support plate, the facing end surfaces of the plurality of docking holes are all communicated with the ventilation holes, the opposite end surfaces of the plurality of docking holes are all corresponding to the side wall of the movable scraper, two follower plates are symmetrically provided at the bottom of the sealing slider, a matching hole is formed in the follower plate, the matching hole is matched with the docking hole, a plurality of connecting springs are uniformly provided on the side wall of the support plate, the other end of the connecting spring is fixedly connected to the side wall of the movable scraper, and a plurality of cleaning holes are uniformly provided at the bottom of the movable scraper.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. In the present invention, the dual-power hydraulic drive system is simple to operate, safe and stable, reduces labor intensity, improves work efficiency, reduces production costs, expands the operation range, realizes maintenance work without stopping the machine, and further improves the grasping efficiency and grasping effect of wood.

[0028] 2. In the present invention, during the process of grasping wood, the grab bucket can also achieve all-round elastic grasping of the wood, improve the wrapping and fixing effect of the wood, and after the grasping is completed, the impurities attached to the outer surface of the wood are cleaned and recycled by means of the high-frequency vibration of the wood, and in cooperation with the reciprocating high-frequency movement of the movable scraper and the wind force discharged from the docking holes, the quality of wood recycling is effectively improved, and pollution to the normal grasping of subsequent wood is avoided.

[0029] 3. In the present invention, after the wood is grasped, the position of the wood between the two support plates is adjusted correspondingly to ensure the stability and accuracy of the center of gravity of the wood, and to avoid the wood shaking during the subsequent rotation of the wood and damaging the grab bucket.

[0030] 4. In the present invention, during the process of grasping and transporting the wood, the support force of the arc-shaped support groove on the side wall of the sealing slider against the side wall of the wood is adjusted correspondingly according to the change of the pressure value detected by the pressure sensor, further ensuring the stability and accuracy of the wood above the support plate.

[0031] 5. In the present invention, after the grabbing bucket transfers the wood above the vehicle, a plurality of sealing sliders move in reverse order successively to achieve the uniform and stable layer-by-layer feeding of the wood, effectively ensuring the uniformity and stability of the wood feeding and recycling, and avoiding the stacking and feeding of multiple woods, which may cause damage to the vehicle or the wood. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0033] Figure 2 is a three-dimensional structural schematic diagram of another perspective of the present invention;

[0034] Figure 3 is a rear three-dimensional structural schematic diagram of the present invention;

[0035] Figure 4 is a three-dimensional structural schematic diagram of the grabbing assembly of the present invention;

[0036] Figure 5 is a front three-dimensional structural schematic diagram of the interior of the grabbing assembly of the present invention;

[0037] Figure 6 is a partially exploded three-dimensional structural schematic diagram of the rotating gear in the grabbing assembly of the present invention;

[0038] Figure 7 is a front three-dimensional structural schematic diagram of the interior of the grabbing bucket in the grabbing assembly of the present invention;

[0039] Figure 8 is Figure 7 an enlarged schematic diagram at position A in

[0040] Figure 9 is a bottom three-dimensional structural schematic diagram of the interior of the grabbing bucket in the grabbing assembly of the present invention;

[0041] Figure 10 is Figure 9 an enlarged schematic diagram at position B in

[0042] Figure 11 is a partially exploded three-dimensional structural schematic diagram of the support plate in the grabbing assembly of the present invention.

[0043] In the figure: 1. Frame assembly; 101. Vehicle frame; 102. Sprocket; 103. Driving part; 104. Transmission part; 105. Control room; 106. Guardrail; 107. Escalator; 108. Power distribution cabinet; 109. Slewing platform; 2. Driving assembly; 201. Diesel engine; 202. Electric motor; 203. Elastic coupling; 204. First main pump; 205. Second main pump; 206. First check valve; 207. Second check valve; 208. Main valve; 209. Fuel tank; 3. Suspension assembly; 301. Positioning seat; 302. Bent boom; 303. Main hydraulic rod; 304. Gooseneck second arm; 305. Negative hydraulic rod; 306. Hinge seat; 4. Grabbing assembly; 401. Grabbing bucket; 402. Rotating rod; 403. Fixed frame; 404. Protective cover; 405. Rotating tooth; 406. Central bearing; 407. Rotating motor; 408. Driving tooth; 409. Mounting cover; 410. Movable seat; 411. Discharge hole; 412. Reinforcing rib; 413. Limiting rod; 414. Support plate; 415. Vent hole; 416. Communication hole; 417. Electric push rod; 418. Sealing slider; 419. Arc-shaped support groove; 420. Pressure sensor; 421. Follow-up plate; 422. Matching hole; 423. Docking hole; 424. Connecting spring; 425. Moving scraper; 426. Cleaning hole; 427. Blower; 428. Connecting seat; 429. Hydraulic clamping rod; 430. Elastic abutting block; 431. Inclined support surface. Detailed implementation manners

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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.

[0045] As Figure 1 - Figure 11 shown, a material grabbing machine with a dual-power hydraulic drive system includes a frame assembly 1. A driving assembly 2 is provided at the bottom of the frame assembly 1. The frame assembly 1 moves and realizes the adjustment and change of the material grabbing position. One side of the top of the frame assembly 1 is movably connected with a suspension assembly 3. The driving assembly 2 provides hydraulic power for the suspension assembly 3 and further improves the working stability and efficiency of the suspension assembly 3. The other end of the suspension assembly 3 is provided with a grabbing assembly 4. The grabbing assembly 4 grabs materials of wood and correspondingly improves the stable grabbing and placing of wood with different sizes and positions, and improves the recovery efficiency and recovery effect of the wood.

[0046] The frame assembly 1 includes a vehicle frame 101. A slewing platform 109 is rotatably connected to the bottom of the vehicle frame 101. The slewing platform 109 drives the vehicle frame 101 to rotate in any direction, further increasing the rotation range of the vehicle frame 101 and the subsequent grasping angle. Two transmission parts 104 are symmetrically arranged on both sides of the slewing platform 109. The transmission part 104 is a gear transmission. A driving part 103 is provided at the input end of the transmission part 104. The driving part 103 is driven by a driving motor. A sprocket 102 is drivingly connected to the outer surface of the transmission part 104. When the driving part 103 is started, it drives the sprocket 102 to rotate through the transmission part 104, thereby realizing the mobility of the slewing platform 109 and the vehicle frame 101 above. Moreover, a plurality of telescopic support parts are evenly arranged at the bottom of the slewing platform 109. The telescopic support part is a telescopic strut structure. When the vehicle frame 101 moves to a suitable position, the telescopic support part is started and stably supports the ground, effectively avoiding the movement of the slewing platform 109 or the vehicle frame 101 during the grasping of wood and reducing the grasping stability.

[0047] A ladder 107 is provided on one side of the vehicle frame 101. A plurality of guardrails 106 are provided at the top of the ladder 107. The side wall of the guardrail 106 is fixedly connected to the side wall of the vehicle frame 101. The setting of the ladder 107 facilitates the operator to reach above the vehicle frame 101 for operation and maintenance. A control room 105 is provided on one side of the top of the vehicle frame 101. A power distribution cabinet 108 is provided on the other side of the top of the vehicle frame 101. The power distribution cabinet 108 is electrically connected to the control room 105. The power distribution cabinet 108 supplies power to each electric control component in the control room 105 and above the vehicle frame 101, and the control room 105 electrically controls each electric and hydraulic component.

[0048] The drive assembly 2 includes a diesel engine 201 and an electric motor 202. A main valve 208 is provided on one side of the vehicle frame 101. A fuel tank 209 is provided on the other side of the vehicle frame 101. Both the diesel engine 201 and the electric motor 202 can control the main valve 208. The hydraulic oil inside the fuel tank 209 is discharged along the main valve 208 to realize subsequent hydraulic work, thereby realizing the described dual-power hydraulic drive system.

[0049] The bottoms of both the diesel engine 201 and the electric motor 202 are fixedly connected to the top of the vehicle frame 101. The output end of the diesel engine 201 is connected with a first main pump 204 through an elastic coupling 203. The input end of the first main pump 204 is communicated with the output end of the fuel tank 209. When the diesel engine 201 starts, it drives the first main pump 204 to work through the elastic coupling 203. The first main pump 204 pumps out the hydraulic oil inside the fuel tank 209. A first one-way valve 206 is provided at the output end of the first main pump 204. The output end of the first one-way valve 206 is communicated with the input end of the main valve 208. Then, the first main pump 204 feeds the hydraulic oil in the fuel tank 209 into the main valve 208 along the first one-way valve 206, thereby realizing the subsequent hydraulic support process. Moreover, the flow direction of the first one-way valve 206 is from the first main pump 204 to the main valve 208 end unidirectionally. Under the one-way restriction of the first one-way valve 206, the hydraulic oil discharged along the first one-way valve 206 when the first main pump 204 starts can only flow into the main valve 208 and cannot flow back into the second one-way valve 207 for backflow.

[0050] The output end of the electric motor 202 is provided with a second main pump 205 through an elastic coupling 203. The input end of the second main pump 205 is communicated with the input end of the fuel tank 209. Similarly, when the second main pump 205 starts, it pumps out the hydraulic oil inside the fuel tank 209. A second one-way valve 207 is provided at the output end of the second main pump 205. The output end of the second one-way valve 207 is communicated with the input end of the main valve 208. Then, the second main pump 205 feeds the hydraulic oil into the main valve 208 along the second one-way valve 207 for circulation. Moreover, the flow direction of the second one-way valve 207 is from the second main pump 205 to the main valve 208 end unidirectionally. Then, under the one-way restriction of the second one-way valve 207, the hydraulic oil pumped out by the second main pump 205 can only enter the main valve 208 and cannot flow back into the first one-way valve 206 for backflow, further improving the stability and safety of the dual-power hydraulic drive system and avoiding mutual obstruction when the diesel engine 201 and the electric motor 202 are working.

[0051] The suspension assembly 3 includes a bending arm 302 and a gooseneck second arm 304. The bending arm 302 and the gooseneck second arm 304 cooperate to adjust the position and height of the grasping assembly 4. A positioning seat 301 is provided on one side of the top of the vehicle frame 101. The position of the positioning seat 301 remains unchanged. The top of the positioning seat 301 is hinged to the bottom of the bending arm 302. The bending arm 302 can rotate around the positioning seat 301 by means of the hinge. The top of the bending arm 302 is hinged to the end of the gooseneck second arm 304. The gooseneck second arm 304 rotates around the bending arm 302, further improving the stability of the hinge rotation and the grasping range. A main hydraulic rod 303 is hinged to the top of the positioning seat 301. The output end of the main hydraulic rod 303 is hinged to the side wall of the bending arm 302 through a hinge seat 306. When the main hydraulic rod 303 is activated, it drives the main hydraulic rod 303 to rotate around the hinge of the positioning seat 301 by an angle. A negative hydraulic rod 305 is provided on the side wall of the main hydraulic rod 303. The output end of the negative hydraulic rod 305 is hinged to the side wall of the gooseneck second arm 304 through a hinge seat 306. When the negative hydraulic rod 305 is activated, it drives the gooseneck second arm 304 to rotate around the hinge at the top of the bending arm 302 by an angle.

[0052] The grasping assembly 4 includes two grasping buckets 401. The grasping buckets 401 grasp the wood. A fixing frame 403 is provided above the grasping buckets 401. The fixing frame 403 connects the positions of the grasping buckets 401. A connecting seat 428 is hinged to the bottom of the gooseneck second arm 304. A movable seat 410 is hinged to the bottom of the connecting seat 428. The cooperation between the connecting seat 428 and the movable seat 410 improves the mobility and stability of the gooseneck second arm 304 driving the grasping buckets 401 to move. A protective cover 404 is provided at the bottom of the movable seat 410. A rotating gear 405 is rotatably connected to the bottom center of the protective cover 404 through a center bearing 406. The rotating gear 405 rotates inside the protective cover 404 by means of the center bearing 406. The bottom of the rotating gear 405 is fixedly connected to the top of the fixing frame 403. When the rotating gear 405 rotates, it drives the fixing frame 403 to rotate synchronously. An installation cover 409 is provided on the side wall of the movable seat 410. A rotating motor 407 is provided on the top of the installation cover 409. The bottom output end of the rotating motor 407 passes through the installation cover 409 and is provided with a driving gear 408. The driving gear 408 meshes with the rotating gear 405. When the rotating motor 407 is activated, it drives the driving gear 408 to rotate. The driving gear 408 meshes with the rotating gear 405 and drives the fixing frame 403 to rotate synchronously, further realizing the rotation of the two grasping buckets 401, improving the adjustment and control of the grasping position of the grasping buckets 401, and ensuring the grasping quality and the grasping range.

[0053] The bottom of the fixing frame 403 is provided with an elastic abutting block 430. The elastic abutting block 430 can elastically support the top of the wood inside the grabbing bucket 401, further improving the grabbing stability of the wood. The two sides of the fixing frame 403 are rotatably connected with rotating rods 402. The outer surface of the rotating rod 402 is rotatably connected with the inner wall of the grabbing bucket 401 through a bearing. The grabbing bucket 401 can rotate synchronously around the rotating rod 402 by hinge, further improving the stability of the grabbing operation of the grabbing bucket 401. The inner wall of the grabbing bucket 401 is provided with a limiting rod 413. The other end of the limiting rod 413 is rotatably connected with the outer surface of the rotating rod 402 through a bearing. The limiting rod 413 clamps and limits the two sides of the grabbing bucket 401, and cooperates with the elastic abutting block 430 to realize the all-round wrapping and grabbing of the wood inside the grabbing bucket 401. The two side walls of the fixing frame 403 are symmetrically provided with hydraulic clamping rods 429. The bottom output end of the hydraulic clamping rod 429 is rotatably connected with the inner wall of the limiting rod 413. When the hydraulic clamping rod 429 is started and its output end extends, the output end of the hydraulic clamping rod 429 drives the two grabbing buckets 401 to move towards each other through the limiting rod 413, and the two grabbing buckets 401 grab and wrap the wood on the ground. The output ends of the main valve 208 are respectively communicated with the input ends of the main hydraulic rod 303, the negative hydraulic rod 305 and the hydraulic clamping rod 429. The setting of the main valve 208 further improves the timeliness and synchronism of the hydraulic oil supply, and the setting of the double-power hydraulic drive system ensures the stability of the hydraulic work, effectively avoiding problems such as the damage of the hydraulic oil circuit and the resulting shutdown for maintenance.

[0054] Two support plates 414 are symmetrically arranged on the inner wall of the grabbing bucket 401. The two support plates 414 stably support the top of the wood, preventing the wood from directly squeezing and contacting the inner wall of the grabbing bucket 401 and causing pollution, etc. A plurality of reinforcing ribs 412 are arranged on the outer surface of the grabbing bucket 401. The setting of the reinforcing ribs 412 improves the support stability of the grabbing bucket 401. The end of the support plate 414 is provided with an inclined support surface 431. When the grabbing bucket 401 grabs the wood on the ground, the wood directly moves to the top of the support plate 414 under the sliding action of the inclined support surface 431. A plurality of discharge holes 411 are evenly arranged inside the grabbing bucket 401 and penetrate through the reinforcing ribs 412. The impurities on the outer surface of the wood, etc. all fall onto the inner wall of the grabbing bucket 401 and are discharged along the discharge holes 411, further improving the cleanliness of the outer surface of the wood and the inner wall of the grabbing bucket 401.

[0055] The support plate 414 is internally provided with ventilation holes 415. A blower 427 is provided on one side of the grabbing bucket 401. The output end of the blower 427 passes through the reinforcing rib 412 and the support plate 414 and is connected to the ventilation holes 415. The blower 427 is started and the gas is introduced into the ventilation holes 415 for circulation. A plurality of communication holes 416 are evenly opened on one side of the ventilation holes 415. The end of the communication hole 416 far from the ventilation holes 415 passes through the support plate 414 and is connected to the inner cavity of the grabbing bucket 401. A sealing slider 418 is hermetically and slidably connected inside the communication hole 416. The sealing slider 418 extends along the communication hole 416 and elastically supports the side wall of the wood. A plurality of electric push rods 417 are evenly arranged at the inner bottom of the ventilation holes 415. The output end of the electric push rod 417 is fixedly connected to the side wall of the sealing slider 418. When the electric push rod 417 is started and the output end extends, the electric push rod 417 synchronously drives the sealing slider 418 to extend outward along the communication hole 416 by an increasing distance. Arc-shaped support grooves 419 are opened on both sides of the sealing slider 418. The inner wall of the arc-shaped support groove 419 is provided with an elastic pad and is matched with the outer surface of the wood. The side wall of the wood is supported and corrected by means of the arc-shaped support groove 419, further improving the placement stability and support of the wood inside the grabbing bucket 401. Pressure sensors 420 are arranged on the inner walls of the arc-shaped support grooves 419. The pressure sensors 420 are used to detect the pressure value received by the side wall of the arc-shaped support groove 419.

[0056] A plurality of docking holes 423 are evenly arranged inside the support plate 414. The opposite end faces of the plurality of docking holes 423 are all connected to the ventilation holes 415. Then the gas inside the ventilation holes 415 is discharged along the multi-stage docking holes 423, further improving the wind cleaning of impurities attached to the inner wall of the grabbing bucket 401. Moving scrapers 425 are slidably connected to both sides of the support plate 414. The opposite end faces of the plurality of docking holes 423 are all corresponding to the side walls of the moving scrapers 425. Driven by the wind discharged from the docking holes 423, the moving scrapers 425 reciprocate horizontally on the inner wall of the grabbing bucket 401 and scrape and clean the inner wall of the grabbing bucket 401, further improving the cleanliness and dredging of the inner wall of the grabbing bucket 401, avoiding more and more impurities attaching to the inner wall of the grabbing bucket 401 and reducing the grabbing effect on the subsequent wood. Two follower plates 421 are symmetrically arranged at the bottom of the sealing slider 418. Matching holes 422 are opened inside the follower plates 421. The matching holes 422 are matched with the docking holes 423. When the sealing slider 418 moves up and down inside the communication hole 416, the sealing slider 418 synchronously drives the follower plates 421 to move up and down. The follower plates 421 drive the matching holes 422 to move up and down, and the overlapping area between the matching holes 422 and the docking holes 423 changes, thereby correspondingly adjusting the amount of gas discharged inside the docking holes 423, and the thrust applied by the docking holes 423 to the moving scrapers 425 changes and drives the moving scrapers 425 to reciprocate inside the grabbing bucket 401, thus ensuring the scraping and cleaning effect of the moving scrapers 425 on the inner wall of the grabbing bucket 401.

[0057] A plurality of connecting springs 424 are evenly arranged on the side wall of the support plate 414, and the other end of the connecting spring 424 is fixedly connected to the side wall of the movable scraper 425. The arrangement of the connecting spring 424 further improves the elastic reset effect of the movable scraper 425. A plurality of cleaning holes 426 are evenly arranged at the bottom of the movable scraper 425. The arrangement of the cleaning holes 426 facilitates the circulation of impurities inside the grab bucket 401, further improving the scraping and cleaning quality of the movable scraper 425 on the inner wall of the grab bucket 401. And because the wind force discharged from the docking hole 423 is different at different positions of the movable scraper 425, the moving distance of the movable scraper 425 stretching the connecting spring 424 inside the grab bucket 401 is different. Therefore, the movable scraper 425 will tilt and shift correspondingly, which not only correspondingly improves the scraping effect of the movable scraper 425 on different positions of the inner wall of the grab bucket 401, but also the movable scraper 425 correspondingly drives the position of the cleaning hole 426 to change and adjusts the circulation position of the impurities attached to the inner wall of the grab bucket 401, ensuring that the impurities can be continuously and stably discharged along the plurality of discharge holes 411.

[0058] Most of the existing material grabbers are single-power hydraulic drive systems. When the hydraulic drive system is damaged, it needs to be repaired for a long time, thus reducing the subsequent normal grabbing efficiency. And when the material grabber grabs wood, a large amount of impurities are often attached to the outer surface of the wood. If the impurities are not cleaned in time, it will not only pollute the inner wall of the grab bucket 401, but also correspondingly reduce the quality of the wood. And after the wood is grabbed, the position distribution of the wood inside the grab bucket 401 is uneven. Then, when the wood is transported and recycled later, the wood is likely to shake and collide inside the grab bucket 401, reducing the safety and stability of the wood and the grab bucket 401. At the same time, when the wood rotates with the grab bucket 401, the wood will also impact and collide with the inner wall of the grab bucket 401 under the action of centrifugal force, thus causing damage to the grab bucket 401. And when the grab bucket 401 transports the wood above the vehicle for recycling, if the two grab buckets 401 open to both sides, the wood inside the grab bucket 401 will directly fall above the vehicle, which will not only affect the stability and safety of the vehicle, but also cause risks such as impact and breakage of the wood.

[0059] To solve the above problems, when the dual-power hydraulic drive system material grabber is actually used, first, the control room 105 controls the drive part 103 to start and drives the sprocket 102 to rotate through the transmission part 104. The sprocket 102 drives the upper slewing platform 109 and the vehicle frame 101 to move to a suitable position, and the drive part 103 stops working. The telescopic support part starts and stably supports with the ground, thus improving the subsequent grabbing and rotating effect of the grab bucket 401 on the wood.

[0060] After that, the control room 105 controls the diesel engine 201 to start and drives the first main pump 204 to start through the elastic coupling 203. The first main pump 204 applies a suction force to the fuel tank 209 and causes the hydraulic oil inside the fuel tank 209 to enter the main valve 208 along the first one-way valve 206. This hydraulic oil reaches inside the main hydraulic rod 303, the negative hydraulic rod 305, or the hydraulic clamping rod 429 along the main valve 208, correspondingly adjusting the position height of the grab bucket 401, thereby improving the grabbing quality and efficiency.

[0061] If the diesel engine 201 is damaged, the control room 105 controls the electric motor 202 to start and drives the second main pump 205 to start through the elastic coupling 203. The second main pump 205 applies a suction force to the fuel tank 209 and enters the hydraulic oil into the main valve 208 along the second one-way valve 207. This hydraulic oil continues to reach inside the main hydraulic rod 303, the negative hydraulic rod 305, or the hydraulic clamping rod 429 along the main valve 208, correspondingly improving the output stability and efficiency of the hydraulic oil. The diesel engine 201 and the electric motor 202 are used interchangeably, further ensuring the non-stop operation of the grab machine and avoiding problems such as low grabbing efficiency caused by maintenance.

[0062] The main hydraulic rod 303 starts and drives the bending arm 302 to move around the positioning seat 301. The other end of the bending arm 302 drives the gooseneck second arm 304 to move synchronously. At the same time, the negative hydraulic rod 305 drives the gooseneck second arm 304 to move. The gooseneck second arm 304 drives the connecting seat 428 to move synchronously. The connecting seat 428 drives the lower fixing frame 403 to move. The fixing frame 403 drives the two grab buckets 401 to move through the rotating rods 402 on both sides, thereby realizing the subsequent adjustment of the position height of the grab bucket 401.

[0063] When the grab bucket 401 moves above the wood, the control room 105 controls the hydraulic clamping rod 429 to start and the output end extends. The output end of the hydraulic clamping rod 429 drives the limiting rod 413 to rotate around the rotating rod 402. The limiting rod 413 drives the two grab buckets 401 to move towards each other around the rotating rod 402. The two grab buckets 401 grab the wood on the ground. During the grabbing process, the control room 105 controls multiple electric push rods 417 to start and the output ends shorten to the initial value. The electric push rods 417 drive the sealing slider 418 to move downward along the communication hole 416 to the initial value. The top of the sealing slider 418 is at the same horizontal plane as the top of the support plate 414. Therefore, under the action of the grab bucket 401 grabbing the wood, it continuously accumulates above the support plate 414 under the action of the inclined support surface 431 on the top of the support plate 414. The side wall of the wood inside the grab bucket 401 is limited by the limiting rod 413, and the wood on the top of the grab bucket 401 is supported and limited by the elastic abutting block 430, further improving the stability and support of the wood inside the grab bucket 401.

[0064] After the two grippers 401 are closed, the control room 105 controls all the electric push rods 417 to start and their output ends to extend. The top output ends of the electric push rods 417 drive the sealing sliders 418 to move along the communication holes 416 away from the ventilation holes 415. The arc-shaped support grooves 419 on both sides of the top of the sealing sliders 418 are inserted between two adjacent pieces of wood and are in elastic contact with the side walls of the wood. The pressure sensors 420 detect the pressure values. The lowermost piece of wood is elastically supported by the arc-shaped support grooves 419 on the side walls of the multiple sealing sliders 418, and together with the limiting rods 413 and elastic abutting blocks 430 on the circumferential side, it realizes the full-round elastic clamping and wrapping of the wood at other positions, avoiding the subsequent wood from shaking during transportation and blanking and colliding with the inner wall of the gripper 401 to cause damage.

[0065] Since impurities are likely to adhere to the outer surface of the wood, the control room 105 controls the electric push rods 417 to start and their output ends to continuously extend and shorten. The electric push rods 417 synchronously drive the sealing sliders 418 to continuously move up and down along the communication holes 416. The arc-shaped support grooves 419 on both sides of the sealing sliders 418 continuously exert effects on both sides of the lowermost piece of wood and drive the wood to vibrate up and down inside the gripper 401. With the help of this vibration force, not only the vibrating and compacting effect on the wood is improved, ensuring that the wood is closely distributed inside the gripper 401, improving the compactness and space utilization rate of the subsequent wood blanking and loading, but also the impurities on the outer surface can be detached and cleaned during the process of the wood vibrating up and down and colliding with the support plate 414, avoiding the impurities from reducing the grasping and recycling quality of the wood.

[0066] The impurities that fall off the outer surface of the wood due to vibration cleaning fall into the inside of the grab bucket 401. At the same time, the control room 105 controls the blower 427 to start and introduce gas into the vent hole 415. When the sealing slider 418 moves up and down along the communication hole 416, it synchronously drives the follower plates 421 on both sides to move up and down. The follower plates 421 drive the matching holes 422 inside to move up and down. Since the misaligned distribution area between the matching hole 422 and the docking hole 423 is constantly changing, the amount of air discharged from the vent hole 415 along the overlapping position of the matching hole 422 and the docking hole 423 to both sides is constantly changing. This changing gas volume directly acts on the side wall of the movable scraper 425, and then drives the movable scraper 425 to stretch the connecting spring 424 and move a changing distance away from the support plate 414. During the reciprocating movement of the movable scraper 425, it transversely scrapes the inner wall of the grab bucket 401. The setting of the cleaning hole 426 realizes the effect of the movable scraper 425 scraping the inner wall of the grab bucket 401 in a misaligned manner, avoiding the impurities attached to the inner wall of the grab bucket 401 from being too large and affecting the stability and efficiency of the reciprocating movement of the movable scraper 425. At the same time, the movable scraper 425 cooperates with the changing gas volume discharged from the docking hole 423 to achieve the effect of wind scraping the impurities attached to the inner wall of the grab bucket 401, so that the impurities can be completely and effectively discharged along the discharge hole 411, avoiding affecting the subsequent grasping of the wood, effectively improving the cleaning and scraping effect, and ensuring the cleanliness of the inner wall of the grab bucket 401 and the dredging of the impurities.

[0067] After the vibration cleaning of the wood inside the grab bucket 401 is completed, the control room 105 controls the electric push rod 417 to start, and the output end drives the sealing slider 418 to move outward along the communication hole 416 to a suitable position. The arc-shaped support grooves 419 on both sides of the sealing slider 418 elastically support the side wall of the wood. The pressure sensor 420 detects the pressure value of the wood above. When the weight distribution of the wood above the two support plates 414 is uneven, the center of gravity of the wood is not located between the two support plates 414. At this time, problems such as the wood shaking and tilting will occur during the transfer and feeding of the wood.

[0068] For example, first, multiple electric push rods 417 all drive the sealing slider 418 to rise to the same height, and the tops of the multiple pieces of wood inside the grab bucket 401 do not squeeze and contact the elastic abutting block 430 and the bottom of the limiting rod 413. When the sum of the pressure values detected by the multiple pressure sensors 420 above the two support plates 414 is equal, it indicates that the wood is in a uniform position above the support plates 414, and the two support plates 414 stably support the wood. When the sum of the pressure values detected by the multiple pressure sensors 420 on one side is greater than that on the other side, it indicates that the weight of the wood on this side is greater than that on the other side. Then the control room 105 controls the multiple electric push rods 417 on this side to start and the output ends extend. The output ends of the electric push rods 417 drive the sealing slider 418 to move outward along the communication hole 416. The sealing slider 418 drives the wood to rise in height on this side through the arc-shaped support grooves 419 on both sides. The multiple electric push rods 417 on the other side of the control room 105 start and the output ends shorten. The output ends of the electric push rods 417 drive the sealing slider 418 to move inward along the communication hole 416. The sealing slider 418 drives the wood to decrease in height on this side through the arc-shaped support grooves 419 on both sides. Then the wood tilts above the two support plates 414 and slides towards the side where the pressure value detected by the pressure sensor 420 decreases. The center of gravity of the wood synchronously moves between the two support plates 414. After that, the control room 105 controls the multiple electric push rods 417 to restart and return to the initial value, and the sealing slider 418 synchronously drives the wood to stably be above the support plates 414 for elastic fixed support.

[0069] After that, the electric push rod 417 starts and drives the sealing slider 418 to move upward along the communication hole 416 to the same height. The arc-shaped support grooves 419 on both sides of the sealing slider 418 apply a squeezing force to the bottom of the wood, so as to ensure that the tops of the multiple pieces of wood inside the grab bucket 401 squeeze and contact the bottom of the limiting rod 413 and the elastic abutting block 430. When the volume of the wood at a certain position above the support plate 414 on the same side is large and the pressure value detected by the pressure sensor 420 increases and is greater than the set pressure preset value, in order to ensure that the wood can be stably supported above the support plate 414, the control room 105 controls the electric push rod 417 at this place to start and the output end shortens. The output end of the electric push rod 417 drives the sealing slider 418 to move inward along the communication hole 416. Then the supporting force of the arc-shaped support groove 419 on this side of the sealing slider 418 on the wood is reduced to the best degree, and the pressure value detected by the pressure sensor 420 reaches the set pressure value, and the wood can be stably supported and limited.

[0070] And when the sealing slider 418 moves inward along the communication hole 416, the sealing slider 418 synchronously drives the two follower plates 421 on both sides to move. The two follower plates 421 drive the matching holes 422 to move, and the overlapping area between the matching holes 422 and the docking holes 423 increases. The amount of gas discharged from both sides along the overlapping area of the matching holes 422 and the docking holes 423 inside the ventilation holes 415 increases. This increased amount of gas not only exerts a wind force on the moving scraper 425 and drives the moving scraper 425 to stretch the connecting spring 424 and move away from the end of the support plate 414, but also can perform wind cleaning on the wood on the side with a larger volume. Thus, the scraping, recycling, and cleaning effect of the dropped impurities of the wood is improved, and the stable cleaning and recycling quality of the wood inside the grabbing bucket 401 is ensured.

[0071] When the grabbing and fixing of the wood are completed, the control room 105 controls the rotation motor 407 to start and drive the driving gear 408 to rotate. The driving gear 408 meshes with the rotating gear 405 and drives the fixing frame 403 to rotate. The fixing frame 403 drives the grabbing buckets 401 on both sides to rotate, and the grabbing buckets 401 drive the wood inside to rotate, further realizing the transfer effect of the wood.

[0072] And during the transfer process, due to the centrifugal force acting on the wood, the wood will move horizontally inside the grabbing bucket 401. Since the outer surface of the wood is not uniform, when the wood moves horizontally above the support plate 414, the pressure value detected by the pressure sensor 420 changes. At this time, regardless of whether the pressure value detected by the pressure sensor 420 increases or decreases, the control room 105 controls the electric push rod 417 to start and its output end extends. The output end of the electric push rod 417 drives the sealing slider 418 to move outward along the communication hole 416. The arc-shaped support grooves 419 on both sides of the sealing slider 418 drive the wood to move upward. The wood is further supported elastically by the two limiting rods 413 on both sides and the elastic abutting block 430 at the top, effectively improving its clamping stability and avoiding the situation of centrifugal detachment during the transfer of the wood by the grabbing bucket 401, ensuring that the wood can be transferred stably and accurately.

[0073] After the grab bucket 401 moves above the vehicle and needs to discharge materials, the control room 105 first controls the blower 427 to stop working, and the hydraulic clamping rods 429 on both sides are activated and the output ends are shortened. The output ends of the hydraulic clamping rods 429 drive the limit rods 413 to move away from each other around the rotating rod 402. The limit rods 413 synchronously drive the grab buckets 401 on both sides to slowly rotate away from each other. During the rotation process, the wood in the middle position continuously slides down under the action of gravity above the vehicle. The pressure value detected by the pressure sensor 420 on the side wall of the arc-shaped support groove 419 close to the fixed frame 403 continuously decreases. When the pressure value detected by the pressure sensor 420 on the side close to the fixed frame 403 is zero and the pressure value detected by the pressure sensor 420 on the other side is not zero, it indicates that the wood on the side close to the fixed frame 403 has been discharged. Then the control room 105 controls the electric push rod 417 on this side to start and the output end is shortened to the initial value. The electric push rod 417 moves downward to a certain distance and then retracts into the communication hole 416. The arc-shaped support groove 419 on the side wall of the sealing slider 418 disengages from the arc-shaped support of the wood, and the wood continuously slides down along the upper side of the support plate 414 under the action of gravity above the vehicle, thereby completing the discharging process of the sealing slider 418 on this side. Repeating the above process continuously realizes the layer-by-layer discharging of the wood inside the grab bucket 401, ensuring the discharging quality and effectively avoiding the accumulation of wood during the discharging process and reducing the safety and stability of the vehicle.

[0074] After the discharging of the wood is completed, the grab bucket 401 is moved away from above the vehicle. At this time, since the sealing slider 418 drives the follower plates 421 on both sides to move downward to the minimum value, the overlapping area of the matching hole 422 and the docking hole 423 reaches the maximum value. The control room 105 controls the blower 427 to start and introduce gas into the ventilation hole 415. The gas is discharged to both sides along the ventilation hole 415, the matching hole 422, and the docking hole 423. Then the gas not only exerts a thrust on the side wall of the moving scraper 425 and makes the moving scraper 425 scrape and clean the inner wall of the grab bucket 401, but also can clean the inner wall of the grab bucket 401 by the wind force under the action of this wind force, so that the impurities attached to the inner wall of the grab bucket 401 are evenly discharged along the opening, and the impurities blocked in the discharge hole 411 can also be discharged downward in the reverse direction, thereby avoiding the pollution of the subsequent wood grabbing caused by the impurities.

[0075] After that, the grab bucket 401 is moved above the subsequent wood, and the above process is repeated to grab and rotate the subsequent wood above the vehicle and recycle it.

[0076] This dual-power hydraulic drive system is easy to operate, safe and stable, reducing labor intensity, improving work efficiency, lowering production costs, expanding the operation range, enabling maintenance work without stopping the machine, and further enhancing the grasping efficiency and effect of wood; moreover, during the process of grasping wood, the grasping bucket 401 can achieve all-round elastic grasping of the wood, improving the wrapping and fixing effect of the wood, and after the grasping is completed, by means of the high-frequency vibration of the wood, the cleaning and recycling of impurities attached to the outer surface of the wood are realized, and in cooperation with the reciprocating high-frequency movement of the moving scraper 425 and the wind force discharged from the docking hole 423, the quality of wood recycling is effectively improved, avoiding pollution to the normal grasping of subsequent wood; after the grasping of the wood is completed, the position of the wood between the two support plates 414 is correspondingly adjusted to ensure the stability and accuracy of the center of gravity of the wood, avoiding the wood from shaking during the subsequent rotation of the wood and reducing damage to the grasping bucket 401; at the same time, during the process of grasping and transporting the wood, the supporting force of the arc-shaped support groove 419 on the side wall of the sealing slider 418 against the side wall of the wood is correspondingly adjusted according to the change of the pressure value detected by the pressure sensor 420, further ensuring the stability and accuracy of the wood above the support plate 414; after the grasping bucket 401 transports the wood above the vehicle, a plurality of sealing sliders 418 move in reverse in sequence to achieve the layer-by-layer uniform feeding of the wood, effectively ensuring the uniformity and stability of the wood feeding and recycling, and avoiding the stacking and feeding of multiple woods, which may cause damage to the vehicle or the wood.

[0077] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0078] 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 principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material grabber with a dual-power hydraulic drive system, comprising a frame assembly (1), characterized in that: A driving assembly (2) is provided at the bottom of the frame assembly (1); a suspension assembly (3) is movably connected to one side of the top of the frame assembly (1); and a grabbing assembly (4) is provided at the other end of the suspension assembly (3); The frame assembly (1) comprises a frame (101); The driving assembly (2) comprises a diesel engine (201) and an electric motor (202); a main valve (208) is provided on one side of the vehicle frame (101); and an oil tank (209) is provided on the other side of the vehicle frame (101); The suspension assembly (3) comprises a bending arm (302) and two gooseneck arms (304); The grabbing assembly (4) comprises two grabbing buckets (401), a fixing frame (403) is provided above the grabbing buckets (401), two support plates (414) are symmetrically provided on the inner wall of the grabbing bucket (401), a vent hole (415) is provided inside the support plate (414), a connecting hole (416) is evenly provided on one side of the vent hole (415), a sealing slider (418) is sealingly slidably connected inside the connecting hole (416), arc-shaped support grooves (419) are provided on both sides of the sealing slider (418), pressure sensors (420) are provided on the inner walls of the arc-shaped support grooves (419), and moving scrapers (425) are slidably connected on both sides of the support plate (414).

2. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: The bottom of the vehicle frame (101) is rotatably connected to a revolving platform (109), two transmission parts (104) are symmetrically provided on both sides of the revolving platform (109), an input end of the transmission part (104) is provided with a driving part (103), an outer surface of the transmission part (104) is transmission-connected to a sprocket (102), and a plurality of telescopic support parts are evenly provided on the bottom of the revolving platform (109).

3. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: An escalator (107) is provided on one side of the vehicle frame (101); a plurality of guardrails (106) are provided on the top of the escalator (107); side walls of the guardrails (106) are fixedly connected to the side walls of the vehicle frame (101); a control room (105) is provided on one side of the top of the vehicle frame (101); a power distribution cabinet (108) is provided on the other side of the top of the vehicle frame (101); and the power distribution cabinet (108) is electrically connected to the control room (105).

4. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: The bottoms of the diesel engine (201) and the electric motor (202) are fixedly connected to the top of the vehicle frame (101); the output end of the diesel engine (201) is connected to the first main pump (204) via an elastic coupling (203); the input end of the first main pump (204) is connected to the output end of the oil tank (209); a first one-way valve (206) is provided at the output end of the first main pump (204); the output end of the first one-way valve (206) is connected to the input end of the main valve (208); and the flow direction of the first one-way valve (206) is one-way along the first main pump (204) to the main valve (208).

5. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: The output end of the motor (202) is provided with a second main pump (205) via an elastic coupling (203); the input end of the second main pump (205) is connected to the output end of the oil tank (209); the output end of the second main pump (205) is provided with a second one-way valve (207); the output end of the second one-way valve (207) is connected to the input end of the main valve (208); and the flow direction of the second one-way valve (207) is one-way along the second main pump (205) to the main valve (208).

6. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: A positioning seat (301) is provided on one side of the top of the vehicle frame (101); the top of the positioning seat (301) is hinged to the bottom of the bending arm (302); the top of the bending arm (302) is hinged to the end of the gooseneck arm (304); a main hydraulic rod (303) is hinged to the top of the positioning seat (301); the output end of the main hydraulic rod (303) is hinged to the side wall of the bending arm (302) through an articulated seat (306); a negative hydraulic rod (305) is provided on the side wall of the main hydraulic rod (303); the output end of the negative hydraulic rod (305) is hinged to the side wall of the gooseneck arm (304) through an articulated seat (306).

7. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: The bottom of the two arms (304) of the gooseneck is hinged with a connecting seat (428), the bottom of the connecting seat (428) is hinged with a movable seat (410), the bottom of the movable seat (410) is provided with a protective cover (404), the bottom axis of the protective cover (404) is rotatably connected with a rotating tooth (405) through a central bearing (406), the bottom of the rotating tooth (405) is fixedly connected to the top of the fixed frame (403), the side wall of the movable seat (410) is provided with a mounting cover (409), the top of the mounting cover (409) is provided with a rotating motor (407), the bottom output end of the rotating motor (407) passes through the mounting cover (409) and is provided with an active tooth (408), and the active tooth (408) and the rotating tooth (405) are meshed with each other.

8. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: An elastic stop block (430) is provided at the bottom of the fixed frame (403), and rotating rods (402) are rotatably connected on both sides of the fixed frame (403). The outer surface of the rotating rod (402) is rotatably connected to the inner wall of the grab bucket (401) via a bearing, and a limit rod (413) is provided on the inner wall of the grab bucket (401), and the other end of the limit rod (413) is rotatably connected to the outer surface of the rotating rod (402) via a bearing. Hydraulic clamping rods (429) are symmetrically provided on both side walls of the fixed frame (403), and the bottom output end of the hydraulic clamping rod (429) is rotatably connected to the inner wall of the limit rod (413), and the output end of the main valve (208) is connected to the input end of the main hydraulic rod (303), the negative hydraulic rod (305) and the hydraulic clamping rod (429).

9. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: The outer surface of the grab bucket (401) is provided with a plurality of reinforcing ribs (412); the end of the support plate (414) is provided with an oblique support surface (431); the interior of the grab bucket (401) is provided with a plurality of discharge holes (411) that pass through the reinforcing ribs (412); a blower (427) is provided on one side of the grab bucket (401); the output end of the blower (427) passes through the reinforcing ribs (412) and the support plate (414) and is connected to the vent hole (415); a plurality of electric push rods (417) are evenly provided on the inner bottom of the vent hole (415); the output end of the electric push rod (417) is fixedly connected to the side wall of the sealing slider (418); the inner wall of the arc-shaped support groove (419) is provided with an elastic pad that matches the outer surface of the wood; and the pressure sensor (420) is used to detect the pressure value exerted on the side wall of the arc-shaped support groove (419).

10. The material grabber with dual-power hydraulic drive system according to claim 1, characterized in that: One end of the connecting hole (416) away from the vent hole (415) passes through the support plate (414) and is connected to the inner cavity of the grab bucket (401); a plurality of docking holes (423) are evenly arranged inside the support plate (414); the end surfaces facing each other of the plurality of docking holes (423) are all connected to the vent hole (415); the end surfaces opposite each other of the plurality of docking holes (423) correspond to the side wall of the movable scraper (425); two follower plates (421) are symmetrically arranged at the bottom of the sealing slider (418); matching holes (422) are opened inside the follower plates (421); the matching holes (422) match the docking holes (423); a plurality of connecting springs (424) are evenly arranged on the side wall of the support plate (414); the other end of the connecting spring (424) is fixedly connected to the side wall of the movable scraper (425); and a plurality of cleaning holes (426) are evenly arranged at the bottom of the movable scraper (425).

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