33results about How to "Improve lifting efficiency" patented technology

The invention provides an elevator with a single-cylinder and double-cylinder switching mode and a using method of the elevator. The elevator comprises a first single-cylinder elevator, a second single-cylinder elevator and a rope adjusting clutch connected between the first single-cylinder elevator and the second single-cylinder elevator. The rope adjusting clutch comprises a bearing seat, a shaft seat inner gear ring and two fixed hubs, the shaft seat inner gear ring is rotationally connected with an inner ring of the bearing seat, the two fixed hubs are connected to a main shaft of the first single-drum elevator and a main shaft of the second single-drum elevator respectively, each fixed hub is connected with a rope adjusting outer gear ring capable of sliding in the axial direction of the fixed hub, and the rope adjusting outer gear rings are connected with the bearing seat. The rope adjusting outer gear ring is connected with a shifting ring, and the shifting ring is connected with a telescopic mechanism fixed to the single-barrel elevator. When the telescopic mechanism stretches out and draws back, the shifting ring drives the rope adjusting outer gear ring to be meshed with or separated from the shaft seat inner gear ring. And switching between two modes of independent operation of the two single cylinders and synchronous operation of the two cylinders can be realized.

This utility model relates to the field of construction engineering technology and discloses a lifting device for construction engineering, including a base. The top of the base has a clearance groove, and a lifting bucket is mounted on the top of the clearance groove. A support frame is fixedly connected to the bottom of the lifting bucket, and a cylinder is fixedly connected inside the support frame. A push rod is fixedly connected to the output end of the cylinder. This utility model has the following advantages and effects: When the lifting bucket rises, the first and second lifting plates increase stability. Anti-slip holes slide on the outer surface of the guide rod. The first lifting plate supports the top of the lifting bucket, and the second lifting plate supports the bottom of the lifting bucket, making lifting more stable. When it rises to a certain height, the cylinder is activated to drive the push rod upward, and the push rod pushes the placement frame out of the lifting bucket, facilitating the discharge of the placement frame and thus enabling the rapid removal of building materials from the lifting bucket, improving lifting efficiency.

The application provides a uniform material adjusting and relay bin and method for deep-sea mining air-lift lifting, which comprises a relay bin outer cylinder and a relay bin inner cylinder arranged inside the relay bin outer cylinder; a material conveying pipe and a lifting pipe are penetrated from the top of the relay bin outer cylinder and enter the relay bin inner cylinder to cooperate with the gap between the relay bin inner cylinder; a lifting mechanism is connected to the bottom of the relay bin inner cylinder; the inside of the relay bin inner cylinder is provided with a rotating mechanism; a measuring device is installed on the top of the relay bin inner cylinder, which is used to measure the distance between the ore layer and the measuring device, and according to the measurement result, the lifting mechanism lifts the relay bin inner cylinder, so that the depth of the bottom end opening of the lifting pipe being buried by the ore layer is controlled, and the material conveying pipe is not inserted into the ore layer. The application avoids the reduction of the ore lifting efficiency caused by the hollow of the lifting pipe opening and the excessive burying of the ore layer, guarantees the full acceleration of the rising seawater of the lifting pipe to the ore and the smooth feeding of the material conveying pipe, and effectively improves the lifting stability of the ore.

The utility model provides a double support leg jack for motor home, including connecting main part, two groups of screw rod drive assemblies and two groups of support leg assemblies, the motor of two groups of screw rod drive assemblies is installed in the middle part of movable slot of connecting main part mutually close, and one end of screw rod is connected to the motor, and the other end is rotatably connected with the bearing arranged in the end part of connecting main part, and the other end of screw rod also has the manual rotation part that passes through the bearing and is located in the outside of end part of connecting main part, the screw rod nut can be slidably sleeved in screw rod and is limited in movable slot, the support leg assembly is installed below two groups of screw rod drive assemblies respectively, the support leg assembly includes support leg, support rod and support plate, by this, the motor is located in the movable slot in the middle part of connecting main part, can be protected by the shelter of connecting main part, is not easy to be interfered with by the knock of outside, is not easy to be corroded and aged by the rain and splash, and the manual rotation part can be arranged in cooperation, and the expansion or folding of two support legs can be realized by electric or manual.

The utility model relates to a sludge treatment related technical field, especially in easy to clean's sludge treatment is with hoisting subassembly, including lifting cylinder, feed port, discharge gate, spiral shaft, helical blade, driving motor, scraping plate and drive assembly, the spiral shaft is connected with the output shaft of driving motor in the lifting cylinder and is penetrated, drive assembly includes drive shaft, shaft sleeve and linkage assembly. Easy to clean's sludge treatment is with hoisting subassembly of the utility model, and the output shaft of driving motor drives the rotation of spiral shaft, thereby conveniently helical blade of spiral shaft periphery transports and lifts sludge, at the same time, the synchronous rotation of shaft sleeve is driven by spiral shaft, and the drive shaft is driven by linkage assembly when shaft sleeve rotates and reciprocates, thereby conveniently drive shaft drives sludge board and scrapes off the sludge in the inner chamber of lifting cylinder.

This utility model relates to a lifting device with dynamic gravity compensation, including a support frame, a transmission lifting device, a sliding frame sliding on the support frame, a fixed pulley group set on the top of the support frame, a tension spring for relieving pressure on the lifting device, a movable pulley group set on the tension spring, and a steel rope for pulling the sliding frame. The lifting device is set inside the support frame; the working end of the lifting device is connected to the sliding frame; a connecting piece is set on the side wall of the support frame; one end of the tension spring is set on the connecting piece; the other end of the tension spring is set on the movable pulley group; the fixed pulley group includes several sets of first pulley bodies; the movable pulley group includes several sets of second pulley bodies; the steel rope is wound around the first pulley bodies and the second pulley bodies in sequence. This invention solves the problem that the transmission structure of traditional lifting devices is relatively simple, often using a single steel wire rope or chain to directly connect the motor and the lifting platform, which cannot effectively amplify the stroke of the steel wire rope.

This invention provides a lifting device and method for lifting steel ladle nozzle bricks, including a vertical shaft, a lifting ring, a support member, and a sliding member. The lifting ring is fixed to the top of the vertical shaft, and the support member is coaxially fixed to the bottom of the vertical shaft. The sliding member is coaxially slidably sleeved on the vertical shaft, and the sliding member can rotate around the central axis of the vertical shaft. Multiple vertically rotatable support legs are evenly distributed around the outer circumference of the sliding member. Multiple first receiving grooves for accommodating the support legs are evenly distributed around the outer circumference of the support member. When the support leg is located in the first receiving groove and the sliding member slides to the lowest position, the horizontal distance from the bottom of the support leg to the central axis of the vertical shaft is less than the minimum radius of the inner hole of the nozzle brick. When the support leg is removed from the first receiving groove and the sliding member slides to the lowest position, the horizontal distance from the bottom of the support leg to the central axis of the vertical shaft is greater than the minimum radius of the inner hole of the nozzle brick. The device of this invention has a simple structure and is easy to operate. Simply moving the support leg into or out of the first receiving groove switches the lifting device from the engaged state to the locked state, ensuring stable lifting.

The utility model relates to the technical field of oil drum transportation, in particular to a grease drum hoisting device. Comprising an assembling frame, a supporting plate is arranged in the assembling frame, a lifting mechanism is arranged at the top of the assembling frame and used for driving the supporting plate to vertically move, a moving plate is arranged on the upper side of the supporting plate, a circular groove is formed in the center of the moving plate, and a lifting mechanism is arranged on the upper side of the supporting plate; and the lifting mechanism is used for driving the moving plate to vertically move. After a grease barrel is placed on the upper side face of the supporting plate and located in the circular groove, an operator starts the electric motor to enable the output shaft of the electric motor to drive the transmission shaft to rotate, the two lead screws rotate synchronously, the movable plate is driven to vertically move upwards, and the circular groove moves to the middle position of the side wall of the grease barrel; the grease barrel can be prevented from horizontally moving and toppling towards one side through the circular groove, the safety of the grease barrel in the lifting process is guaranteed, and the lifting efficiency of the grease barrel is improved.

The tool comprises a base, vertical rods, a lifting rope, a connecting sleeve and a limiting piece, the base is rectangular, stand columns are arranged at the four corners of the base, connecting holes used for being connected with the lifting rope are formed in the stand columns, the multiple vertical rods are installed in the base, every two vertical rods form a group, and the rectangular stirrups are limited through the intervals of the vertical rods; a sleeve is installed at the top end of the stand column, and a limiting piece is rotationally connected into the sleeve and is of an L-shaped structure. According to the tool for safe hoisting of the stirrups, it can be guaranteed that the stirrups are stacked in order, the quality of the stirrups can be better guaranteed, the stirrups are integrally limited in the hoisting process, safety accidents in the hoisting process are effectively prevented, the hoisting efficiency of the steel bars is improved, and the production efficiency is improved.

The utility model relates to prefabricated box culvert lifting appliance technical field, especially prefabricated box culvert lifting appliance, including main girder, both ends of main girder are slidably provided with hook leg, both sides of hook leg are hinged with connecting rod, and the one end away from hook leg of connecting rod is connected with lifting hook through hinge shaft, and the hinge shaft is provided with on -off device, and the main girder is provided with the clamping groove with on -off device cooperation, and the inside of hook leg is slidably provided with crossbeam along the vertical direction, be provided with locking mechanism between crossbeam and hook leg, and the both ends of crossbeam are provided with telescopic link along the horizontal direction. Through setting up the hook leg of sliding, the connecting rod of hinging and the lifting hook, cooperate the design of on -off device and clamping groove, can realize the convenient opening and closing and the fixation of lifting hook, need not to pass through prefabricated box culvert with sling, greatly simplify hoisting operation process, the crossbeam of sliding in hook leg and locking mechanism, in combination with telescopic link of crossbeam both ends, can adjust according to the size of prefabricated box culvert, effectively improve the adaptability and stability of hoisting, significantly improve work efficiency, reduce the operation complexity and labour intensity.

The utility model provides a kind of material handling device of urban overpass construction, it includes rack, material box and lifting mechanism, the lifting mechanism is located on the rack, including the lifting drive component for lifting the material box and the lifting guide component for guiding the lifting process of the material box;The material box includes inner box and outer box, the inner box with the outer box is connected by transverse movement drive component, transverse movement guide component, the transverse movement drive component is used to drive the inner and outer transverse movement of the inner box in the outer box, the transverse movement guide component is used to guide the transverse movement process of the inner box.The utility model improves the lifting efficiency of material box by lifting drive component, improves the stability of material box in lifting process by lifting guide component, can reduce the security risk of operation.

The invention relates to the field of oil production engineering equipment, in particular to an integrated production pipe column for a gas drive oil production well, which comprises a sleeve, an oil pipe is coaxially arranged in the sleeve, the bottom end of the oil pipe is in threaded connection with a horn mouth, and the oil pipe is fixedly connected with a pump support joint above the horn mouth. A gas lift working barrel is arranged at the top end of the pump supporting connector, and a delivery tool part is further arranged in the oil pipe. The tubular column and the method have the advantages that the tubular column and the method can be applied for a long time under different production conditions, the requirements of different yields and different gas-liquid ratios are met, the production tubular column can be repeatedly used, and the operation cost is saved.

This invention discloses a detachable lifting clamp fixture for ships. It includes a connecting assembly, a driving assembly, and a suspension assembly. The connecting assembly includes a clamping member and a top support member. The clamping member can clamp and fix the web of a pre-shaped profile, and the top support member can abut against the panel of the pre-shaped profile from top to bottom. The driving assembly is connected to the connecting assembly to drive the connecting assembly to clamp and release the web. The suspension assembly is connected to the connecting assembly and is used to install the lifting clamp. Through the clamping member and the top support member, the pre-shaped profile can be detachably fixed in a clamping manner, and the lifting weight can be applied to both the web and the panel simultaneously. Compared with welding the lifting clamp, this avoids welding work, improves lifting efficiency, reduces lifting costs, and reduces damage to the hull structure. Furthermore, by distributing the weight, it reduces the risk of deformation and damage to the hull structure, especially the panel of the pre-shaped profile.

This invention discloses a tilt-lift short takeoff and landing (STOVL) aircraft and its control method, comprising a fuselage, wing assembly, multi-layered distributed propulsion system, tilt drive assembly, and control unit. The wing is hinged to the fuselage via a pivot in the mid-rear section of the chord, and the tilt drive assembly drives the wing to rotate and adjust the angle of attack. The multi-layered distributed propulsion system includes a first rotor assembly located in the mid-rear section to the wingtip region of the wing and a second rotor assembly located on the lower surface of the wing near the fuselage. During cruise, the first rotor assembly is stopped and feathered, and the propulsion system tilts synchronously with the wing. This invention, through a layered distributed propulsion layout and synchronous wing tilting for synergistic lift enhancement, solves the problems of insufficient control torque at low speeds and high cruise energy consumption, achieving a balance between STOVL performance and cruise economy.

The present disclosure provides a device and a system for flying a flag of an extraterrestrial object, the device comprising: a flagpole; a winder arranged at one end of the flagpole; a rope wound on the winder and extending along the flagpole from the winder to the other end of the flagpole, the rope continuing to extend along the flagpole back to the winder after passing around the other end of the flagpole, a flag being fixed to the rope; a driver for rotating the winder to move the rope along its extension direction relative to the flagpole; a tensioning mechanism for tensioning the rope.

The utility model discloses a portable steel rail lifting frame which comprises a supporting frame and a hydraulic pump, the hydraulic pump is arranged at the top end of the supporting frame, a piston rod of the hydraulic pump is vertically downward and fixedly connected with the top end of the supporting frame, the portable steel rail lifting frame further comprises a connecting mechanism and rail clamping mechanisms, and the rail clamping mechanisms are arranged in the supporting frame and located below the hydraulic pump. The connecting mechanism vertically penetrates through the top end of the supporting frame, and the two ends of the connecting mechanism are fixedly connected with the hydraulic pump and the rail clamping mechanism correspondingly. According to the portable steel rail lifting frame, the hydraulic pump is matched with the multiple rail clamping arms in the rail clamping mechanism, a steel rail can be lifted through the rail clamping arms, the burden of workers is relieved, and the lifting efficiency of the steel rail is improved; a roller arranged at the lower end part of each rail clamping arm can facilitate the front-back movement of the steel rail after the steel rail is lifted; the rollers at the bottom end of the lifting frame can facilitate the movement of the lifting frame at the top of the steel rail, so that the lifting frame can be conveniently transferred and carried during line patrol, and the burden of workers is reduced.

This utility model relates to the field of pumped storage power station seat ring volute installation technology, and discloses a turbine seat ring tensioning screw lifting device, including a base, a support plate, a turntable bearing, a lifting mechanism, a bracket, positioning bolts, and positioning blocks. The support plate is used to support the tensioning screw to be installed. The support plate is rotatably fixed on the top of the base through the turntable bearing. The lifting mechanism is located at the bottom of the base. Several brackets are circumferentially arrayed on the top of the support plate. Positioning bolts are horizontally installed on the brackets by threads. Each positioning bolt is set towards the center of the support plate. A positioning block is fixedly installed at the end of the positioning bolt facing the center of the support plate. During construction, each positioning block clamps the lower end of the tensioning screw. This utility model saves time and effort in lifting the tensioning screw, has high lifting efficiency, avoids safety accidents such as tilting or slipping of the tensioning screw during the lifting process, and avoids the problem of difficulty in rotating the tensioning screw. The construction process is time-saving, labor-saving, and highly efficient.

The utility model belongs to the technical field of aluminum foil coil lifting, and particularly relates to an aluminum foil coil separating and combining lifting appliance which comprises a frame and a supporting cushion block, the frame comprises a vertical beam, a first cross beam and a second cross beam, the first cross beam and the second cross beam are connected to the two sides of the vertical beam, and a lifting lug is arranged on the upper side of the first cross beam; a supporting cushion block is arranged on the second cross beam in a sliding mode, and the second cross beam and the supporting cushion block are used for supporting and hanging an aluminum foil roll. According to the lifting appliance, the narrow strip coils can be quickly separated or combined, so that the slitting and lifting efficiency is greatly improved; and the supporting cushion blocks with multiple sizes are combined to adapt to different coil width ranges and be compatible with various aluminum coil specifications, so that the production efficiency is improved, and the hoisting safety is improved.

This utility model belongs to the field of wind turbine tower construction technology, specifically a hoisting device for anchor bolt cages of power collection lines in the foundation of a mountain wind turbine tower. It includes two support rods and a hoisting device. The inner walls of both support rods are provided with threaded rods, and two positioning rods are inserted into the inner walls of the support rods. The hoisting device is positioned directly above the two threaded rods and includes two rotating blocks. The inner walls of the rotating blocks are rotatably connected to the surfaces of the threaded rods, and hoisting rods are inserted into the inner surfaces of the two rotating blocks. A support device is provided on the surface of the support rods. The support device includes a fixed block, the side walls of which are fixedly connected to the surface of the support rods. A rotating rod is rotatably connected to the surface of the fixed block, and rotating columns are rotatably connected to both sides of the rotating rod. By setting up this entire device, the anchor bolt cage can be easily hoisted, and the hoisting device can also be easily moved, reducing the impact of terrain during transport and thus increasing hoisting efficiency.

The electric submersible pump device comprises an oil outlet pipe, the upper end of the oil outlet pipe is connected with a pump body, the lower end of the oil outlet pipe is connected with a shear pipe set, an oil outlet shaft is arranged in the oil outlet pipe, an output shaft of the pump body is connected with the oil outlet shaft, the oil outlet shaft is provided with an oil outlet spiral disc, and the oil outlet spiral disc is connected with the shear pipe set. A shearing base shaft is arranged in the shearing pipe set and connected with an oil outlet shaft. A top shearing ring is fixedly arranged on the outer wall of the shearing base shaft, and a top shearing knife is arranged on the outer wall of the top shearing ring; the shearing base shaft is connected with a bottom shearing ring through a rotating reversing mechanism, and a bottom shearing knife is arranged on the outer wall of the bottom shearing ring. The rotating directions of the top shearing ring and the bottom shearing ring are opposite, so that the rotating directions of the bottom shearing knife and the top shearing knife are opposite, a petroleum polymer can be sheared twice, the shearing effect is guaranteed, and the lifting efficiency is improved.

The utility model relates to industrial material hoisting technical field, concretely is a single hoisting point quick -witted connection dismounts anti -shaking mechanism, including hoist and lifting hook, its characterized in that, the both sides of lifting hook are installed with two symmetrical support plates, the top fixedly connected with two lifting plates of hoist, and two between the fixedly connected with hanging rod of lifting plate, the lifting hook cover the outer surface of hanging rod, and the support plate and the lifting plate between the same side are connected with two symmetrical connecting plates. Advantages lie in: the connecting plate on support plate supports the lifting plate, makes hanging rod not to be active in the inside of lifting hook, thereby in the process of hoisting hoist, hoist will not appear the situation of shaking relative to lifting hook, thereby when hoisting material through hoist, can restore the stable of material quickly, avoids the problem that material drops due to excessive shaking, improves the security, possesses the advantage that hoist is quickly disassembled, when hoisting a variety of materials, can improve the efficiency of material hoisting.

This application provides a hoist with a single / double drum switching mode and its usage method, comprising: a first single drum hoist, a second single drum hoist, and a rope adjusting clutch connected between the two; the rope adjusting clutch includes a bearing housing, an internal gear ring of a shaft seat rotatably connected to the inner ring of the bearing housing, and two fixed hubs, which are respectively connected to the main shafts of the first and second single drum hoists. Each fixed hub is connected to an external gear ring of rope adjusting that can slide along its axial direction. The external gear ring of rope adjusting is connected to a deflector ring, which is connected to a telescopic mechanism fixed on the single drum hoist; when the telescopic mechanism extends or retracts, the deflector ring drives the external gear ring of rope adjusting to engage or disengage with the internal gear ring of the shaft seat. This allows switching between two modes: independent operation of the two single drums and synchronous operation of the two drums.

The utility model relates to the technical field of steel rolling equipment, in particular to a device for replacing a bearing bush of a large motor, which comprises a bridge-type trolley, a traction lifting lug, solid wheels, pulleys and a lower lifting lug, the bridge-type trolley is a flat rectangular trolley, the bridge-type trolley comprises a bridge-type frame and a reinforcing support, and the reinforcing support is arranged in the bridge-type frame; a lower lifting lug is arranged in the center of the bottom of the bridge-shaped trolley, solid wheels are arranged on the two sides of the bottom of the bridge-shaped trolley, the solid wheels on the two sides are arranged on two rails in a bridging mode, and the two rails are arranged between memorial archways on the two sides between an upper motor and a lower motor of a rolling mill. The traction lifting lugs are arranged on the two sides of the walking direction of the bridge type trolley, the pulleys are arranged on the inner sides of the memorial archways on the two sides, and the traction lifting lugs are connected with the pulleys on the same side through the steel wire rope. The replacement efficiency is improved, and safe disassembly and assembly are achieved.

The utility model relates to the technical field of building engineering, disclose a kind of formwork wall column hoisting tool, including base, the left and right sides of the base top are fixedly connected with connecting plate, the right side of the base top is fixedly connected with protective shell, the right side of the protective shell is installed with servo motor, the output of servo motor is fixedly connected with winding shaft.This formwork wall column hoisting tool is provided with fixed ring, chain, first mounting ring, pole beam, screw rod and sling, adopts pole beam and chain can bear vertical component force, in horizontal direction, pole beam can bear two equal support force, keep balance, the bottom end of sling is wound on screw rod, then sling is hung on hook, use pole beam and sling can speed up material hoisting efficiency, reduce knock and hoisting safety, and screw rod can be recycled, solve the problem of inconveniently stable formwork wall column hoisting, easily affect the safety of hoisting.

The utility model discloses a coal mine underground chute lifting device which comprises a hook, a connecting plate and a lifting chain which are connected in a hinged mode, the lower portion of the hook is a hook portion facing the inner side, the middle of the hook is a lower handle portion, the upper portion of the hook is an upper handle portion, the hook portion is sequentially connected with the lower handle portion and the upper handle portion, and the upper handle portion inclines towards the inner side and forms a certain angle with the lower handle portion. The upper handle portions of the two hooks intersect, a hinge shaft is arranged at the intersection, the ends of the upper handle portions are hinged to the lower ends of connecting plates, and the upper ends of the connecting plates on the two sides are connected with the two ends of a lifting chain respectively. The device is compact in overall structure and convenient to use, a traditional unsafe iron wire and horseshoe hook carrying mode can be effectively replaced, the safety and efficiency of coal mine underground chute mounting operation are improved, and the device has wide application prospects.

This invention discloses a water tank replenishment device for aviation operation support, including a base fitted around a fire hydrant. A protective mechanism is provided on the outside of the base, comprising a frame positioned on top of the base and fitted around the fire hydrant. A lead screw is provided on the outside of the base, with a threaded sleeve threaded to its outer surface. A cleaning component is provided on the outside of the threaded sleeve. A bracket is rotatably connected to the outer surface of the lead screw. This invention relates to the technical field of aviation operation support equipment and solves the problems of existing aviation operation support water tank replenishment devices, where the protective frame is supported and fixed by a fixing plate to protect the fire hydrant. The fixing plate has poor support performance and is prone to detachment. Furthermore, both the support and operation require manual intervention, which is cumbersome, inefficient, and inconvenient for fire hydrant use.

The utility model relates to an assembly tool for locking FPGA and radiator, and relates to the technical field of electronic device assembly, the mounting frame is fixed on the back side of base respectively, two connecting rods are fixed on the left and right side walls of pressing plate respectively, the both ends of limiting rod are fixed on base and the mounting frame of left side respectively and are movably inserted in the connecting rod of left side, the upper and lower ends of screw rod are respectively screwed and are inserted in the top of mounting frame of right side and base in bearing and are screwed in the connecting rod of right side through screw thread, the upper end of screw rod is fixed in the sleeve of no. One gear, and the lower side of it is engaged with no. Two gear, the driving mechanism is located on base, and the driving mechanism is connected with no. Three pivot, the pressing plate displacement is driven, improves the lifting efficiency of pressing plate, ensures that pressing plate drops even pressure, avoids radiator and FPGA chip and is damaged because of too violent stress, ensures that the installation position of radiator and FPGA chip is aligned, avoids deviation.

The present disclosure relates to the technical field of corn kernel loading, and an embodiment of the present disclosure provides a corn kernel loading lifting device, which comprises a lifting channel, and further comprises a hopper, a powerful fan, auxiliary mechanisms and guide plates; the hopper is connected to the bottom of the lifting channel; the powerful fan is arranged at one end of the lifting channel; the output end of the powerful fan is communicated with the bottom end of the lifting channel; the two auxiliary mechanisms are arranged on one side of the lifting channel and used for blowing the corn kernels in the lifting channel upward; the two guide plates are arranged in the lifting channel through a swing mechanism and correspond to the two auxiliary mechanisms respectively; and the swing mechanism is used for driving the two guide plates to swing, so as to solve the technical problem that the mechanical structure in the prior art causes the phenomenon of residual material in the lifting channel during the lifting of the corn kernels, and further causes the invalid loss of the corn kernels.