1337 results about "Rotational joint" patented technology

A modular electric wheel assembly. The assembly including a motor with a rotor in a rotary union with a stator. The motor of the brushless DC type and including a circular rotor rotating about a central axis and including a central hollow axle. The hollow axle configured for coupling with a removable energy source and / or an external energy source and including attachment structures for a plurality of attachments to enable riding by a user or configuration within a parent vehicle such as a bicycle or moped, or use as another machine type, such as a power tool or power generation machine. The rotor configured with a quick-change mechanism through a first ring configured to accept a plurality of removable wheel types and rotatable attachments, enabling a user to select a variety of unique wheel / tire types and configurations for a variety of applications.

The utility model discloses a special rotary joint for an ultralow-temperature fluid loading and unloading arm, and relates to the technical field of rotary joints. The connector comprises a connector body, a first flange plate is arranged at the top of the connector body, a second flange plate is arranged above the first flange plate, a plurality of mounting holes are formed in the first flange plate and the second flange plate, and mounting assemblies are arranged in the mounting holes in the second flange plate. And a driving mechanism is arranged in an inner cavity of the mounting assembly. When dismounting is needed, the driving mechanism is rotated reversely, thrust to the balls is reduced, the mounting holes in the first flange plate are obliquely arranged, the balls can retract, and then the tight connection state of the first flange plate and the second flange plate is relieved, so that tedious operation of traditional flange connection is avoided, and the dismounting efficiency is improved. The connecting and detaching efficiency of the loading and unloading arm and the external pipe is improved, time and labor cost is reduced, and convenience and reliability of the loading and unloading system are improved.

A medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient is disclosed. The pad can include a fluid containing layer and a fluid conduit attached therewith via rotatable joint where the joint is configured to facilitate rotation of the fluid conduit with respect to the pad. A method of manufacturing the pad can include coupling a first member of the rotatable joint to a fluid delivery line, coupling the second member to the fluid containing layer, and inserting the first member within an opening of the second member to facilitate a snap-fit retention mechanism between first member and the second member. A method of using the pad can include rotating the fluid delivery line relative to the thermal pad via the rotatable joint when initially applying the pad to the patient or when adjusting an orientation of the pad on the patient.

The utility model discloses a rotary hinge device for installing a solar panel. The rotary hinge device comprises a hinge body and a panel fixer, hinge tables are arranged at the two ends of the hinge body, connecting tables are arranged at the two ends of the sailboard fixing device, the hinge tables and the connecting tables are connected through rotating joints, so that the sailboard fixing device can rotate around the hinge tables, and the rotating joints are sleeved with hinge torsion springs matched with the hinge tables and the connecting tables. The outer end of one rotary connector is further provided with a time sequence torsion spring arranged in the axial direction of the rotary connector. When the solar panel support is used, the solar panel support is fixedly installed on the side face of a satellite structure frame and can be reliably connected with a sailboard. And meanwhile, the rotary joint for rotationally connecting the sailboard is arranged in the hinge main body, so that the flexible rotary connection between the sailboard and the satellite body is realized, and the secondary unfolding requirement of the sailboard is met. A time sequence control structure is further arranged in the hinge to prevent interference and collision in the unfolding process, and the phenomenon of over-unfolding or under-unfolding is prevented.

The utility model discloses softening and hardness-removing treatment equipment for high-concentration brine. The softening and hardness-removing treatment equipment comprises a treatment barrel, a rotating rod and a stirring blade mounting sleeve, a support is fixedly welded to the upper portion of the rear wall of the treatment barrel, a servo motor is fixedly installed at the position, located at the circle center over the treatment barrel, of the top of the support, a rotating rod is fixedly installed on an output shaft at the bottom of the servo motor, spraying pipes are fixedly installed on the two sides above the rotating rod, and a rotating connector is installed at the position, connected with the output shaft of the servo motor, of the top of the rotating rod. A stirring blade mounting sleeve movably sleeves the lower part of the rotating rod, stirring blades are fixedly welded on the periphery of the stirring blade mounting sleeve, guide rods are fixedly mounted at the outer ends of one group of stirring blades, and a spiral guide groove is formed in the inner wall of the treatment cylinder. According to the utility model, a medicament can be uniformly sprayed into high-concentration brine, and multi-dimensional stirring is realized by virtue of a unique stirring blade design, so that the brine and the medicament are fully mixed and reacted to complete softening and hardness removal treatment, and thus efficient mixing is realized and a good treatment effect is ensured.

The invention belongs to the related technical field of part finish machining, and particularly discloses a shaft part machining device which comprises a base, a spindle box is arranged on one side of the upper end face of the base, hydraulic calipers are installed at the end of the spindle box, and a turning frame is arranged on the upper end face of the base and located on one side of the spindle box. A sliding seat is connected to one side of the turning frame through an arranged X-axis driving sliding rail mechanism, a double-axis adjusting seat is arranged at the upper end of the sliding seat, an installing seat is fixedly connected to the upper portion of the double-axis adjusting seat, a tool rest is connected to the upper end face of the installing seat through an arranged installing block, and a tailstock is fixedly installed above one end of the turning frame. A tool block is installed in the tool rest, the outer wall of one side of the tool rest is connected with a rotating joint through an arranged transmission mechanism, and a negative pressure pump is arranged on the outer wall of the tool rest and located at the rotating joint. The problems of resonance and long cuttings in the turning process of the slender shaft are effectively solved, and the machining quality and efficiency of shaft parts are improved.

The utility model provides an anti-rust spraying device which relates to the technical field of anti-rust spraying and comprises a bottom frame and a barrel body, the top of the bottom frame is fixedly connected with a bottom plate, the bottom of the bottom plate is fixedly connected with a motor, the output end of the motor penetrates through the bottom plate and extends to the upper side, and the bottom of the bottom plate is fixedly connected with a vacuum pump. The output end of the vacuum pump is fixedly connected with a vacuum pipe; and the rotating assembly is rotationally connected to the top of the bottom plate, and the rotating assembly comprises a rotating joint. According to the utility model, when the barrel body is subjected to rust-proof spraying treatment, the barrel body is driven to rotate along with the rotation of the communicating seat, and under the rotation of the barrel body, the inner wall and the outer wall of the barrel body are uniformly covered and sprayed with a coating sprayed by the spray head, so that the synchronous rust-proof coating spraying treatment on the inner wall and the outer wall of the barrel body is completed; and the processing flow of rust-proof spraying is simplified, and the processing efficiency is effectively improved.

A sheet material handling equipment includes a handling fixture having a frame adapted for attachment to a robot or manipulator; at least two arms anchored to the frame, each arm being formed by at least two semi-arms pivotally connected to each other and including a gripping member at its free end, the pivotal connection including a rotatable joint with a joint coupling having a joint brake, which are passive with a pressure or electric lock; and a first control line for distributing electrical power, and / or air, and / or hydraulic fluid for controlling the joint and / or the gripping member connected via an adapter to (a) an electrical power supply, and / or hydraulic fluid, and / or air to the robot or manipulator and to (b) a work line control unit, and an adjusting fixture structured to actively adjust a position of at least one of the arms and / or to unlock the joint brake.

A rotary joint capable of measuring a rotation angle with high accuracy includes: a flange; a rotor whose one end is connected with the flange and has a tubular shape; a shaft whose outer periphery is connected with an inner periphery of the rotor so that the shaft is rotatable about a central axis of the rotor as a rotation axis; and a rod whose one end is connected with the flange and is provided in an opening to extend from one end side of the shaft along the central axis; an angle measurement unit connected with the opening to extend from another end side of the shaft to another end of the rod and measures a rotation angle between the rod and the shaft with the central axis as the rotation axis; and a shield member formed in a cup shape.

The utility model relates to the technical field of automobile steering wheels, and discloses a bilateral wiring type automobile steering wheel. Comprising a wiring type steering wheel, an operation board is fixedly connected to the inner wall of the wiring type steering wheel, a center console is fixedly connected to the end, away from the wiring type steering wheel, of the operation board, and a steering column is rotationally connected to the lower end of the center console. According to the wiring type steering wheel, the rotating joint rotationally connected with the lower end of the steering column is rotationally connected with an automobile, so that when the wiring type steering wheel is rotated, the steering column below the wiring type steering wheel is driven to rotate, the sliding ring is driven to rotate in the sliding ring due to rotation of the steering column, and meanwhile the inner wall of the sliding ring is rotationally connected with the rotating ring; in this way, the rotating joint makes contact with the rotating bearing in the rotating ring while rotating, so that the rotating bearing is driven to rotate together, the rotating process is more convenient, and meanwhile the rotating capacity of the rotating joint is improved.

The utility model discloses a fire-fighting reel capable of adjusting belt releasing speed, which comprises a roller and a suspension support, the suspension support is fixedly connected with a rotary joint, the rotary end of the rotary joint is fixedly sleeved with the roller, and a fire-fighting water belt is wound on the roller. Then the elastic force of the spring is changed, so that the extrusion force of the limiting block on the fire hose can be adjusted, the magnitude of the force required for pulling the fire hose is changed, the release speed of the fire hose can be changed under the action of the same pulling force, and similarly, the release speed of the fire hose can be changed by adjusting the extrusion force of the limiting block on the fire hose; under the condition that the fire hose is pulled out at the same speed, more labor can be saved, when the fire hose is not used, the extrusion force of the limiting block on the fire hose is increased, water in the fire hose can be extruded out and the water outlet end of the fire hose can be fixed when the fire hose is taken up, and a child is prevented from pulling the fire hose to play with the fire hose.

The invention discloses an electro-hydraulic control underground adjustable angle device and an adjusting method thereof. A translation assembly and a rotating assembly in a shell assembly are sequentially arranged from outside to inside, a sliding sleeve of the translation assembly slides in the axial direction of a shell of the shell assembly, and a spiral rod of the rotating assembly is matched with the sliding sleeve through a spiral key to achieve rotating movement and axial movement of the spiral rod; the lower end of the rotating assembly is meshed with the rotating joint assembly through a spherical gear to realize rotation of a rotating joint; the lower end of the shell is connected with the rotary connector through a gear ring, and the included angle between the axis of the gear ring and the vertical axis of the shell is larger than 0 degree. The device has the advantages of being simple in structure, convenient to operate, reliable in performance and high in structure bending angle adjustment control precision; the bend angle is adjusted underground, the requirement for track control of a well with a complex structure is met, and the purpose of completing drilling track control of the well with the complex structure with low cost, high efficiency and high precision is achieved.

The invention provides a tibia transverse moving device based on a universal rotating joint, relates to the technical field of orthopedic medical instruments, and solves the problems that in the prior art, during an operation, a bone needle is obliquely installed, and due to a rigid frame and single-plane adjustment of a traditional device, the bone needle is not stably fixed, stress is concentrated, and complications occur frequently. The device is mainly composed of a main body support, a universal rotating joint device and a short bone needle fixing mechanism, the device is symmetrically distributed on the two sides with an adjusting rotary knob as the center, in the using process, transverse moving of bones can be completed only by controlling the adjusting rotary knob, and multi-direction adjusting is achieved through universal rotating joints.

The application discloses a main shaft with a built-in center water outlet mechanism, which comprises a steel cylinder, front and rear bearing seats fixed at two ends of the steel cylinder respectively, a rotor arranged in the steel cylinder, a hollow pull rod arranged in the rotor, a tool handle connected with the pull rod and arranged at the front end of the rotor, a tool handle water channel formed in the tool handle, a rear cover fixed at the upper end of a rear bearing assembly, the upper end of the rotor being arranged in the rear cover, an oil cylinder seat fixed at the upper end of the rear cover, an oil cylinder arranged in the oil cylinder seat and capable of sliding up and down, a piston arranged in the oil cylinder, a piston rod arranged at the center of the piston, the upper end of the pull rod penetrating through the piston rod, a tail cover fixed at the upper end of the oil cylinder seat, a water inlet channel formed in the tail cover, a rotary joint assembly arranged in the tail cover and between the water inlet channel and the upper end of the pull rod. The rotary joint assembly can be integrated in the main shaft, stress of the rotary joint assembly can be avoided, and the overall performance of the main shaft is improved.

The invention relates to a waste smashing and recycling device for injection molding machining, and belongs to the technical field of injection molding machining, the waste smashing and recycling device comprises a main smashing frame, the top of the main smashing frame is fixedly connected with a material receiving frame, the bottom of the main smashing frame is fixedly connected with a conveying frame, and the bottom of the conveying frame is fixedly connected with an auxiliary smashing frame; the inner wall of the main crushing frame is rotationally connected with a crushing roller, the end of the crushing roller is rotationally connected with a rotating connector extending to the outside of the main crushing frame, and the outer wall of the main crushing frame is fixedly connected with a control box. According to the device, knocking rods and air holes are arranged, when the injection molding waste is treated through the crushing and recycling device, the knocking rods are distributed on the upper side and the lower side of a crushing roller, so that the waste of different sizes is subjected to pre-crushing and re-crushing treatment before crushing and after crushing, and meanwhile, under the arrangement of the air holes, the crushing efficiency is improved. And mechanical energy for driving the flapping plates is converted into wind energy for conveying, waste is prevented from being adsorbed to the surfaces of the crushing rollers, and the waste is synchronously cooled.

The embodiment of the invention relates to the technical field of rotary joint testing, one embodiment of the invention provides a rotary joint test board used for testing a rotary joint, the rotary joint is provided with a first joint part and a second joint part which rotate relatively, and the rotary joint test board comprises a frame body; the seat body is arranged on the frame body and used for being connected with the first connector part; one end of the rotating part is provided with a free end, and the other end of the rotating part is used for being connected with the second connector part; the swing driving assembly is arranged on the frame body, connected with the rotating part and used for driving the rotating part to rotate; and the free end is rotationally arranged relative to the bending moment assembly, and the bending moment assembly acts on the free end in the radial direction of the rotating piece and is used for providing torque for deflection of the center shaft of the second connector part relative to the center shaft of the second connector part. Through the technical scheme, the technical problem that a rotary joint test device in the prior art is difficult to meet the performance test requirement of the rotary joint is solved.

The utility model relates to a replacement structure of a filter element assembly with a rotary water stopping function. The technical problem that an existing filtering device is low in filter element replacement efficiency is solved. Comprising a filter element body with a plurality of filter element holes in one end, filter element connectors are arranged in the filter element holes respectively, one end of the filter element body is connected with a filter element base through a rotary positioning structure, filter element water stopping assemblies are arranged in the filter element connectors, a plurality of water inlet and outlet holes are formed in the filter element base, and a rotary sealing seat is rotationally arranged in the filter element base. A plurality of rotary joints are arranged in the rotary sealing seat, a rotary joint water stop assembly abutting against the filter element water stop assembly is arranged in one of the rotary joints, and a sealing assembly is arranged between the rotary sealing seat and the filter element base. The device has the advantages that the circumferential rotation limiting assembly can facilitate sealing and water stopping of the rotary sealing seat and the water inlet and outlet hole, the water stopping efficiency is improved, and the production cost is reduced. The sealing effect when the rotary sealing seat and the filter element base are rotationally sealed can be improved through the sealing assembly.

The utility model discloses a centrifugal oil filter which comprises a supporting plate, a filtering mechanism and a deslagging mechanism, a filtering container is arranged at the upper end of the supporting plate, an L-shaped supporting plate is arranged on the right side of the lower end of the supporting plate, and a material guide pipe is arranged on the front side of the upper end of the L-shaped supporting plate; the filtering mechanism comprises a filtering barrel and filtering holes, the filtering barrel is rotationally connected between the upper inner wall and the lower inner wall of the filtering container, the uniformly distributed filtering holes are formed in the outer wall of the filtering barrel, a rotating joint is arranged at a discharging opening in the lower end of the filtering barrel, and the lower side of the rotating end of the rotating joint is fixedly connected with the upper end of a material guiding pipe; the residue discharging mechanism comprises a rotating shaft, a spiral piece and scraping plates, the rotating shaft is rotationally connected to the bottom wall of the material guiding pipe, the outer wall of the rotating shaft is fixedly sleeved with the spiral piece, and the scraping plates which are evenly distributed are arranged at the upper end of the rotating shaft. And the oil filtering working efficiency is improved.

The high-performance release agent production equipment comprises a reaction cavity shell and a temperature sensing probe, a sealing cover plate is fixed to the outer wall of the top of the reaction cavity shell through a hasp lock, and a gas path rotating connector is fixed to the axis position of the top of the sealing cover plate in a penetrating mode; a hollow stirring rod is rotationally mounted at the axis of the gas path rotating joint through a deep groove ball supporting bearing, and bionic elastic turbulent flow blades which are distributed at equal intervals are in threaded connection with the outer wall of the middle of the hollow stirring rod. Through cooperation of the storage bin, the spiral conveying blade and the first servo motor, the raw material conveying speed can be accurately adjusted, the situation of blockage or low efficiency is avoided, the second servo motor drives the grinding base to rotate at a high speed through meshing transmission of the first bevel gear and the second bevel gear, and the grinding efficiency is improved. An electric telescopic rod is matched to adjust a grinding disc to move left and right for further grinding, blocky raw materials can be fully crushed and ground, raw material particles are uniform and fine, and a good foundation is provided for subsequent reaction.

An adjustable neck joint for a stringed instrument includes a neck with a heel portion formed as a first half of a rotating joint and a body with a neck block formed as a second half of the rotating joint. The first half of the rotating joint and the second half of the rotating joint may each be configured to connect with the other and movably interface with each other such that the neck is rotatable with respect to the body about an axis located immediately adjacent to and above a position along the neck.

This utility model discloses a ball mill that allows material feeding and discharging without stopping the machine. It includes a drum driven by a motor and its reducer, with a main feed inlet on the side of the drum and a control valve thereon; at least one auxiliary feed inlet on the end face of the drum; a fixed outer tube; and an inner tube installed at the center of the drum's end face and rotating synchronously with the drum. The inner tube contains a centrally located main feed channel and peripheral auxiliary feed channels arranged side-by-side. The inner end of the main feed channel is connected to the drum's inner cavity via a main feed guide pipe and a main feed inlet, while the outer end of the main feed channel is connected to the outer tube along the inner tube's axial direction via a first rotary joint. The inner end of the auxiliary feed channels is connected to the drum's inner cavity via an auxiliary feed guide pipe and an auxiliary feed inlet, while the outer end of the auxiliary feed channels is connected to an auxiliary feed inlet / outlet pipe along the inner tube's radial direction via a second rotary joint. This design ensures smooth feeding and discharging of both main and auxiliary materials in the drum without stopping the machine; prevents material leakage during high-speed drum rotation; and improves the ball mill's applicability and production efficiency.

The utility model discloses an insulating mold with a cooling function, which comprises an injection molding mechanism, and a cooling mechanism is arranged on the surface of the injection molding mechanism. The injection molding mechanism comprises a base, a supporting table is fixed to the top of the base, a first air cylinder is fixed to the surface of the supporting table, one end of the first air cylinder penetrates through the supporting table and is fixedly provided with an upper mold, and a lower mold is fixed to the surface of the base; the cooling mechanism comprises a fan, the fan is fixed to the surface of the supporting table, the surface of the fan communicates with a communicating pipe, the communicating pipe penetrates through the supporting table, an L-shaped pipe is arranged below the communicating pipe, a supporting plate is fixed to the surface of the upper mold, the L-shaped pipe is fixedly connected with the surface of the supporting plate, and one end of the L-shaped pipe communicates with a rotating connector. According to the utility model, air cooling and water cooling are used together to carry out more effective cooling treatment on the die, so that the die does not easily have a high-temperature state after working for a long time.

The utility model discloses a mobile photovoltaic cleaning robot, which relates to the technical field of cleaning robots and comprises a vehicle body component, cleaning rolling comb components mounted on two sides of the vehicle body component and a water slip ring component mounted on the upper side of the vehicle body component. A driving synchronous wheel and a driven synchronous wheel are arranged on the two sides of the box body frame respectively, a crawler belt is connected between the driving synchronous wheel and the driven synchronous wheel, and the water slip ring assembly comprises a rotating joint. The photovoltaic panel cleaning device can automatically move on a photovoltaic panel for cleaning, through a precise system framework, the system waterway is perfect, the cleaning rolling brush assembly is convenient to install, and the photovoltaic panel cannot be damaged during cleaning.

The present application relates to a kind of pyrolysis high-temperature solid material conveying device of leakage prevention, belong to high-temperature solid material conveying technical field;Shell is placed axially horizontally on support platform;The top of shell is provided with import flange, bottom is provided with export flange;Double-chamber leakage prevention seal is installed in the axial left end of shell;Shaft passes through double-chamber leakage prevention seal and then from the left end of shell extends into the inner cavity of shell;2 bearing seats are fixed on the upper surface of support platform by bolt connection;The axial outer end of shaft is supported by 2 bearing seats;Rotary joint is installed in the outer end of shaft;Access hole is arranged in the top of shell;Access hole inner wall, import flange inner wall, export flange inner wall, shell inner wall are attached wear-resistant castable;The outer wall of the part of shaft extending into the inner cavity of shell is installed blade;Transmission part is sleeved on the outer wall of the outer end of shaft;The present application can withstand high-temperature working condition when conveying garbage pyrolysis solid material, while long-distance material return in horizontal direction is realized, and the problem of garbage pyrolysis material return is solved.

A monitor mounting system which includes a crossbar having at least one monitor mounting bracket positioned thereon. A support arm is configured to adjust the vertical height of the crossbar and a pivot assembly is positioned between the support arm and the crossbar, with the pivot assembly configured to allow limited pivot adjustment of the crossbar in order to level the crossbar to the horizontal position.

The invention relates to the technical field of down suction devices, in particular to a dust-free down suction device for down products, which comprises a machine body, a mounting frame is fixedly connected to the side wall of the machine body, a pipeline exhaust fan is fixedly mounted on the upper surface of the mounting frame, and a first conveying pipe and a second conveying pipe are fixedly connected to the upper surface of the mounting frame through supports. And a rotary conveying pipe is hermetically and rotatably communicated between the first conveying pipe and the second conveying pipe through a rotary joint. By means of the self-adaptive ventilation down-proof assembly, self-adaptive adjustment of the working power of a ventilation fan can be achieved, down materials are effectively prevented from being accumulated and blocked in a pipeline due to moisture, the conveying efficiency is improved, by means of the self-adaptive impurity removal assembly, impurities in the down materials can be efficiently separated, the purity of the down materials is effectively improved, and the service life of the down materials is prolonged. And through the arrangement of the self-adaptive fluff ball scattering assembly, efficient scattering treatment on fluff balls can be achieved, and the uniformity of fluff materials is guaranteed.

A medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient is disclosed. The pad can include a fluid containing layer and a fluid conduit attached therewith via rotatable joint where the joint is configured to facilitate rotation of the fluid conduit with respect to the pad. A method of manufacturing the pad can include coupling a first member of the rotatable joint to a fluid delivery line, coupling the second member to the fluid containing layer, and inserting the first member within an opening of the second member to facilitate a snap-fit retention mechanism between first member and the second member. A method of using the pad can include rotating the fluid delivery line relative to the thermal pad via the rotatable joint when initially applying the pad to the patient or when adjusting an orientation of the pad on the patient.

The invention relates to the technical field of air conditioner wind direction control, and discloses an energy-saving air conditioner wind direction control device which comprises a shell, an adjusting frame, an air collecting box and a support installed on the shell, a plurality of air outlets are formed in the upper portion of the shell, a telescopic pipe is installed in each air outlet, a first shutter is installed at the front end of each telescopic pipe, and a second shutter is installed at the rear end of each telescopic pipe. An axial screw and a transmission shaft driven by a second motor are rotatably mounted on the support, a torsion spring is arranged at the rotational joint of the axial screw and the support, a shaft sleeve is in linkage with the transmission shaft, three half-tooth gears with the same radius are mounted on the shaft sleeve, and the gear ratio of the three half-tooth gears is 8: 9: 10. When wide-angle air supply is needed, meshing of the large-tooth-number half-tooth gear can be switched to increase the rotation amplitude of the axial screw, when a mute mode is needed, meshing of the small-tooth-number gear can be switched to reduce the swing frequency, and self-adaptive adjustment of the functional belt under different air speed and air direction requirements is achieved through the precise control mode.

The self-propelled intelligent blanket seedling cutting machine comprises a cutting assembly, the cutting assembly comprises a rack, the rack is provided with a first walking mechanism, the rack is fixedly connected with two rotating joints, the rotating joints are rotatably connected with a cutter floating frame, the rack is rotatably connected with an electric push rod, and the electric push rod is rotatably connected with a second walking mechanism. A cutter shaft supporting plate is fixedly connected to the cutter floating frame, a cutter transmission shaft is rotationally connected to the cutter shaft supporting plate, a second motor is fixedly connected to the cutter floating frame, and a cutter is fixedly connected to the cutter pressing plate. The orbit determination assembly is fixedly connected to the ground; the movable rail assembly is arranged on the fixed rail assembly in a sliding mode, a second walking mechanism is fixedly connected to the movable rail assembly, the first walking mechanism is arranged on the movable rail assembly, a distance fixing mechanism is arranged between the movable rail assembly and the fixed rail assembly, and a steering mechanism is arranged on the fixed rail assembly. The seedling cutting device can replace manual seedling cutting, the labor intensity is reduced, meanwhile, the consistent cutting effect can be guaranteed, and use is more convenient.