76results about How to "Great driving force" patented technology

The invention discloses a heat pipe, a radiator and electronic equipment. The heat pipe comprises a pipe body, a first capillary structure and a second capillary structure. A containing cavity is formed in the pipe body and used for sealing and storing working fluid. The first capillary structure is attached to the inner pipe face of the pipe body. The second capillary structure is wrapped in the first capillary structure. According to the heat pipe, the first capillary structure with large capillary pressure wraps the second capillary structure with large permeability, so that the composite capillary structure with the high-speed backflow channel is formed in the heat pipe, and the advantages of different capillary structures are fully utilized; and the working fluid in the heat pipe quickly and fully participates in circulating heat transfer of liquid phase-gas phase change, so that the heat transfer performance of the heat pipe is improved.

The invention provides a double-output air cylinder which comprises a cylinder body, a cylinder cover, a piston, a piston rod and a piston rod. A cavity is formed in the cylinder body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a front cavity and a rear cavity; the piston assembly comprises a first piston arranged in the front cavity in a sliding fit mode and a piston rod arranged on the head portion of the first piston, and the piston rod extends out of the cylinder body and serves as a first output end. The rotating assembly comprises a rotating assembly body arranged in the rear cavity, a driving shaft is arranged on the rotating assembly body, and the driving shaft penetrates through the partition plate, is in rigid connection with the first piston and can drive the piston rod to rotate in the radial direction. The double-output air cylinder is compact in structure, small in size, capable of adjusting the output shaft at any angle, high in adjusting precision, reliable and stable to use, particularly suitable for mechanical arms of non-standard equipment, and wide in application range, and has a self-locking effect.

The invention discloses a sound production monomer and a sound production module, and relates to the technical field of sound energy conversion, the sound production monomer comprises a magnetic circuit system, a vibration system, a magnetic assembly and an elastic support member, and the magnetic circuit system forms a first magnetic gap and a second magnetic gap; the vibration system vibrates in the first direction and comprises a vibrating diaphragm, a first voice coil and a second voice coil, the first voice coil is located in the first magnetic gap, the second voice coil is located in the second magnetic gap, the first voice coil and the second voice coil are both connected with the vibrating diaphragm, and the current directions of the first voice coil and the second voice coil are the same; one end of the elastic supporting piece is connected with the magnetic circuit system, the first voice coil and the second voice coil are both connected with the other end of the elastic supporting piece, the magnetic assembly is arranged on the elastic supporting piece, and the magnetic assembly can provide acting force opposite to the restoring force of the vibrating diaphragm for the first voice coil and the second voice coil; by adding the magnetic assembly, the performance of the sounding monomer is improved.

The invention discloses a sound production monomer and a sound production module, and relates to the technical field of sound energy conversion, the sound production monomer comprises a magnetic circuit system and a vibration system, the magnetic circuit system comprises a magnetic circuit unit, the magnetic circuit unit forms a first magnetic gap and a second magnetic gap, the magnetic circuit unit comprises a central magnetic circuit, a middle magnetic circuit and a side magnetic circuit, the middle magnetic circuit comprises a first middle magnetic circuit and a second middle magnetic circuit, the first magnetic gap surrounds the first middle magnetic circuit, and the second magnetic gap surrounds the second middle magnetic circuit; the vibration system comprises a diaphragm, a first voice coil, a second voice coil and a magnetic assembly, the first voice coil is located in the first magnetic gap, the second voice coil is located in the second magnetic gap, one sides of the first voice coil and the second voice coil are connected with the diaphragm, the other sides are connected with the magnetic assembly, and the current directions of the first voice coil and the second voice coil are the same. The magnetic assembly can provide acting force opposite to the restoring force of the vibrating diaphragm for the first voice coil and the second voice coil, and the performance of the sound production monomer is improved by additionally arranging the magnetic assembly.

The invention discloses a sound production monomer and a sound production module, and relates to the technical field of sound energy conversion, the sound production monomer comprises a magnetic circuit system and a vibration system, and the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap which are arranged at an interval along a second direction; the vibration system vibrates in the first direction, the first direction is perpendicular to the second direction, the vibration system comprises a vibrating diaphragm, a first voice coil, a second voice coil and a magnetic assembly, the first voice coil is located in the first magnetic gap, the second voice coil is located in the second magnetic gap, one side of the first voice coil is connected with the vibrating diaphragm, and the other side of the first voice coil is connected with the magnetic assembly. One side of the second voice coil is connected with the vibrating diaphragm, the other side of the second voice coil is connected with the magnetic assembly, the current directions of the first voice coil and the second voice coil are the same, and the magnetic assembly can provide acting force opposite to the restoring force direction of the vibrating diaphragm for the first voice coil and the second voice coil, so that the driving force of the first voice coil and the second voice coil to the vibrating diaphragm is effectively increased; and the performance of the sounding monomer is improved.

The invention discloses a sound production monomer and a sound production module, and belongs to the technical field of sound energy conversion, the sound production monomer comprises a magnetic circuit system and a vibration system, and the magnetic circuit system forms a magnetic gap; the vibration system comprises a voice coil, a first vibrating diaphragm, a second vibrating diaphragm and a rigid connecting piece, the voice coil is arranged in the magnetic gap, the first vibrating diaphragm and the second vibrating diaphragm are arranged on the two sides of the magnetic circuit system respectively in the vibration direction of the vibration system, the first vibrating diaphragm is provided with a first reinforcing part, the voice coil is connected with the first reinforcing part, and the first reinforcing part is provided with a first magnetic piece; the first vibrating diaphragm is provided with a first reinforcing part, the second vibrating diaphragm is provided with a second reinforcing part, the second reinforcing part is provided with a second magnetic piece, the first reinforcing part and the second reinforcing part are connected through a rigid connecting piece, and the resultant force of the first magnetic piece and the second magnetic piece acting on the voice coil is opposite to the restoring force of the first vibrating diaphragm in direction, so that the driving force of the voice coil to the vibrating diaphragms can be effectively increased; and the performance of the sounding monomer is improved.

The invention belongs to the technical field of photography and camera shooting, and discloses a ball closed-loop motor which comprises a support, a carrier and a driving mechanism. A lens is arranged on the bracket; an optical filter is arranged on the carrier, and a guide component I and a guide component II are arranged between the carrier and the bracket, so that the carrier can slide relative to the bracket along an optical axis; the driving mechanism is used for driving the carrier to move relative to the bracket; the first guide component and the second guide component are adjacently arranged, the first guide component comprises at least two first balls, the second guide component comprises second balls, and in the plane where the first balls and the second balls are located, the first balls and the second balls form a triangular structure. The first ball and the second ball are of a triangular structure in the same plane, so that the use stability of the motor is improved, and the definition of a shot picture is ensured. The invention further discloses a camera module with the ball closed-loop motor and electronic equipment with the camera module.

The application discloses a micro fan and electronic equipment, and relates to the fan technical field, the micro fan includes a shell assembly, a vibration plate assembly and a driving device. The vibration plate assembly divides the shell assembly into a front cavity and a rear cavity, the vibration plate assembly includes a vibrating plate with one end fixed and one end suspended, the shell assembly includes an air inlet and an air outlet which are communicated with the front cavity and the outside, and the air inlet and the air outlet form a front cavity air duct; the driving device is arranged in the rear cavity and includes a permanent magnet magnetic circuit assembly, a coil and an armature, the permanent magnet magnetic circuit assembly and the coil are fixed relative to the shell assembly, the armature includes a moving piece arranged in the coil and the permanent magnet magnetic circuit assembly, the moving piece and the vibrating plate are connected through a connecting rod, and the coil is used for driving the moving piece to vibrate; the micro fan is compact in structure, small in size, high in driving efficiency, and capable of achieving good heat dissipation effect.

The utility model provides a disconnected type vehicle frame and a mine truck, the disconnected type vehicle frame comprises a front vehicle frame and a rear vehicle frame, a slewing bearing is arranged between the front vehicle frame and the rear vehicle frame, the outer ring of the slewing bearing is fixedly connected to the rear end part of the front vehicle frame, and the inner ring of the slewing bearing is fixedly connected to the front end part of the rear vehicle frame; and the inner ring and the outer ring of the slewing bearing are rotationally connected. Compared with an existing integral frame vehicle, the front frame and the rear frame adopting the slewing bearing can rotate in a small range in the advancing direction, so that an axle can be in better contact with the ground, the driving force of the vehicle is increased, and the cross-country performance of the vehicle is improved; compared with an existing articulated truck that a power assembly and a transfer case are both installed on a front truck, the power assembly of the disconnected truck frame adopting the slewing bearing is installed on the front truck frame, the transfer case is installed on the rear truck frame, the size of a front overhang and a wheel base of the whole truck is small, the length of the whole truck is reduced, applicability is improved, and wide application and popularization prospects are achieved.

The invention discloses a silicon-based ceramic core capable of regulating and controlling strength based on angle-ball ratio and a preparation method thereof, the silicon-based ceramic core comprises the following substances in percentage by mass: 75-90wt% of ceramic powder and 10-25wt% of plasticizer, and the ceramic powder comprises the following substances in percentage by mass: 67-85wt% of quartz glass powder, 13-32wt% of mineralizer and 0.1-2wt% of pore-forming material. The method comprises the following steps: pretreating quartz glass powder with various particle sizes and spherical powder in aluminum oxide with various particle sizes; pretreating the quartz glass powder of each grade of particle size and the aluminum oxide of each grade of particle size according to a designed angle-ball ratio; uniformly mixing ceramic powder and a plasticizer to obtain silicon-based ceramic core slurry; and carrying out injection molding to obtain a silicon-based ceramic core green body, and roasting to obtain the silicon-based ceramic core with the strength regulated and controlled based on the angle-ball ratio. A series of silicon-based ceramic core systems with approximately linear adjustable strength can be obtained, and different requirements of different working conditions, different inner cavity structures, different alloy types and the like of blade investment casting on the strength of the ceramic core can be met.

This utility model discloses a novel sintering tungsten ...

The present application relates to a kind of stator coil structure and magnetic levitation plane motor for magnetic levitation plane motor.The stator coil structure includes multiple groups of shaping coils and multiple groups of long strip coils, each group of shaping coils and corresponding group of long strip coils form a group of coil combination units;Multiple groups of coil combination units are arranged according to predetermined coil period, for interacting with the mover permanent magnet array located above or below when energized, generate horizontal direction driving force and / or vertical direction suspension force;Each group of shaping coils and long strip coils are arranged alternately, and the shaping coil is used to fill the space gap formed by the arrangement of long strip coil, to improve the effective conductor ratio and coil slot fill factor in stator plane.The present application increases the effective conductor area involved in electromagnetic force under the premise that the heat dissipation condition and thermal power remain basically unchanged, so as to improve the output force density of magnetic levitation plane motor.

This invention discloses a locking and release device for a 4D-printed small satellite based on SMA (Super-Magnetic Atomizing) technology, belonging to the fields of aerospace and biomimetic 4D printing technology. The device consists of a main supporting shell 1, a launch platform 2, an auxiliary drive device 3, a locking lever 4, a locking and release spring assembly 5, and an energy storage spring assembly 6. The auxiliary drive device 3 controls the downward movement of the locking mechanism through temperature changes of the inner and outer springs, thereby compressing the energy storage spring assembly 6 and heating it to achieve autonomous energy storage. The launch platform 2 supports the satellite at its upper end and is tightly connected to the energy storage springs at its lower end. The locking and release spring assembly 5 is used to lock the satellite and drive its release. In summary, this invention provides a locking and release device for a 4D-printed small satellite based on SMA, making the failure modes of the satellite launch device effectively controllable and improving the device's adaptability to the extreme environment of space.

The monorail personnel transportation device for the coal mine tunnel comprises a rail assembly and a transportation vehicle advancing on the rail assembly, the transportation vehicle comprises a driving part, a cabin and a bearing trolley, the rail assembly comprises a rail, the driving part comprises a hydraulic motor and a friction wheel, the friction wheel can roll on the rail, and the cabin is arranged on the rail. Through driving of the hydraulic motor and friction wheels on the two sides, the running speed is increased, the driving force is larger, the gradeability is higher, running is more stable, a rail is clamped through a brake block of a brake assembly, rapid braking can be achieved, the transport capacity of a single train can be improved according to the needs of personnel through the modular marshalling design, and the situation that the train does not need to turn around to go back and forth is achieved through the two-way cockpit configuration; the air spring damping and rotation structure enables operation to be more stable, the track structure supports rapid extension, and the narrow fuselage design enables the device to be suitable for a complex narrow roadway network of a mine.

The utility model relates to the field of logistics equipment, and discloses a steering wheel chassis and a robot, the steering wheel chassis comprises at least two sets of steering wheel mechanisms, each steering wheel mechanism comprises a driving wheel, a first driving motor and a second driving motor, the first driving motor drives the driving wheel to rotate, and the second driving motor drives the driving wheel to steer.

The present application belongs to the technical field of vehicle control, and specifically provides a heavy desert tire inflation and deflation control system and method, which comprises an inflation and deflation control module, a tire inflation and deflation control assembly, a left tire pressure sensor, a right tire pressure sensor, a left axle load measurer, a right axle load measurer, a left axle ground clearance detector, a right axle ground clearance detector, a gravity centroid sensor, an inter-wheel differential lock and an inter-axle differential lock; the present application acquires corresponding vehicle state data of the vehicle through the left tire pressure sensor, the right tire pressure sensor, the gravity centroid sensor, the left axle load measurer, the right axle load measurer, the left axle ground clearance detector and the right axle ground clearance detector; in addition, the present application increases the tire-ground contact ratio by deflating the tire, reduces the tire rolling radius to increase the driving force of the vehicle, and engages the inter-axle differential lock and the inter-wheel differential lock, thereby effectively helping the vehicle to drive out of the sunken road surface in the desert.

The application relates to a kind of salt alkali land experimental ploughing devices, belong to agricultural equipment technical field.A kind of salt alkali land experimental ploughing device includes mounting bracket, drive mechanism, harrowing assembly and first elastic member.Drive mechanism is arranged in mounting bracket, drive mechanism has multiple first protrusions protruding from the outer circumferential side of drive mechanism.Harrowing assembly is coaxially rotatably sleeved outside drive mechanism, and harrowing assembly has multiple second protrusions protruding from the inner circumferential side of harrowing assembly.Multiple first protrusions and multiple second protrusions are sequentially spaced along the circumference of drive mechanism. Along the circumference of drive mechanism, first elastic member is located between first protrusion and second protrusion, and the two ends of first elastic member respectively abut against first protrusion and second protrusion. Drive mechanism rotates around rotation axis to compress first elastic member and drive harrowing assembly to rotate.

The invention belongs to the technical field of optical imaging equipment, and particularly relates to a lens driving device which comprises a base, a support, a frame and a carrier. A first direction coil and a second direction coil are respectively arranged on the base; the frame is arranged on the support, a first-direction magnet is arranged on one side of the bottom end of the frame, and after the first-direction coil is powered on, the frame and the carrier can move in the first direction relative to the support; the support is arranged on the base, a second-direction magnet is arranged on one side of the bottom end of the support, and after the second-direction coil is powered on, the support, the frame and the carrier can move in the second direction relative to the base. According to the invention, the power supply of the OIS coil is directly supplied by the built-in circuit of the base, the power supply wiring difficulty is reduced, and when the carrier moves in the first direction, the thrust of the OIS anti-shake action required by the carrier is smaller, so that the installation size of the magnet can be obviously reduced or the thrust of the OIS anti-shake action can be increased, and the lens can realize a larger-angle anti-shake effect in the first direction.

The utility model discloses a sounding monomer and a sounding module, and relates to the technical field of sound energy conversion, the sounding monomer comprises a magnetic conductive yoke and a magnetic circuit unit arranged on the magnetic conductive yoke, the magnetic circuit unit comprises a central magnetic circuit and a side magnetic circuit arranged on the periphery of the central magnetic circuit, the central magnetic circuit and the side magnetic circuits are arranged at intervals and a magnetic gap is formed therebetween; the vibration system comprises a vibrating diaphragm, a voice coil and a magnetic piece arranged on the voice coil, the voice coil is located in the magnetic gap, one side of the voice coil is connected with the vibrating diaphragm, the other side of the voice coil is connected with the magnetic piece, the magnetic conductive yoke is provided with an avoiding hole used for avoiding the magnetic piece, and the magnetic gap is communicated with the avoiding hole; the magnetic piece can provide acting force opposite to the restoring force of the vibrating diaphragm for the voice coil; the driving force of the voice coil to the vibrating diaphragm is effectively increased, and the performance of the sounding monomer is improved.

The invention belongs to the technical field of automobiles, and particularly relates to a flying wing door mixed opening and closing switching system, an automobile and a switching method. Comprising an opening mechanism and a door connecting arm. The other end of the opening mechanism is connected with a vehicle body; the vehicle door connecting arm is fixed with a vehicle door; the opening mechanism comprises a switching mechanism, a flying wing door controller and a side door controller; the switching mechanism is driven by a rotating mechanism driving motor; the side door opening controller controls the vehicle door to be opened laterally; and the flying wing door controller controls the vehicle door to perform flying wing opening. A pull wire mechanism is adopted to control the sliding block to work, so that the arrangement position of the actuator is more flexible, the size and the type of the actuator are more flexible, a motor with higher power can be selected, larger driving force is provided, the mechanism switching is more facilitated, and switching between a side door mode and a flying wing door mode can be achieved; and the frequency of changing the riding position between the front row and the rear row of seats by passengers is greatly reduced.

The present invention discloses a one-stage series hydrocracking method. The method comprises the following steps: (1) mixing feedstock oil with hydrogen and then entering a hydrocracking pretreatment reactor for pre-reaction; (2) the pre-reaction effluent of step (1) enters a hydrocracking reactor for a first hydrocracking reaction; (3) the first hydrocracking reaction effluent in step (2) enters a catalytic reaction distillation tower for a second hydrocracking reaction and rectification to obtain corresponding products. The method can effectively solve the problem of timely separation of reaction products from the reaction zone, improve the yield of the target product, and at the same time improve the hydrocracking reaction efficiency and reduce the energy consumption of the device.

The present invention relates to an aluminum profile bending support system with embedded steel cables, comprising an aluminum profile bending machine, which is composed of a clamping block, a middle supporter, a middle connector and an end supporter. The clamping block is used to fix the end of the aluminum profile. The middle supporter is connected through a connector array and is composed of a stationary block and a floating block. A linear driving mechanism is arranged between the two. The middle connector is composed of a supporting steel cable and a fixed block. The steel cable runs through the stationary block. The end supporter includes a limit block, which is fixed on the clamping block. The end of the supporting steel cable is connected to the limit block. The linear driving mechanism is composed of an oil cylinder. A three-way connecting cavity is arranged in the stationary block to connect the driving mechanism. The middle connector includes an intermediate connecting pipe and an end connecting pipe. The end connecting pipe connects the end stationary block and the limit block, and is connected to the output end of a hydraulic pump.

The application provides a continuous preparation method of artificial muscle fiber and a device used in the method. The device comprises a wire releasing unit for independently releasing original fibers, a guiding unit for gathering the original fibers into ply fibers, a twisting unit for twisting the ply fibers into twisted fibers, and a wire collecting unit for collecting the twisted fibers; and further comprises a tension monitoring unit for detecting a tension value, a merging point monitoring unit for detecting a merging point position of the fibers, and a master control unit for adjusting wire releasing parameters to maintain the tension value within a preset tension interval, and for adjusting a matching relationship between the rotating speed of the twisting unit and the wire collecting unit to maintain the merging point position within a preset area. The application provides a device suitable for continuously twisting a plurality of fibers under closed-loop tension control, which can realize continuous high-twist plying of the plurality of fibers, further insert twisted fibers with high twist to form a plurality of yarn artificial muscle fibers with a spiral structure, so as to realize preparation of an artificial muscle fiber bundle and increase driving force.

The present invention discloses a catalytic reaction distillation tower, comprising: a catalytic reaction unit, the catalytic reaction unit further comprising: a catalyst bed, which is used to fill a solid catalyst, starting from the second layer, the upper part of the solid catalyst filled in each catalyst bed has an inclined surface; a liquid phase feed subunit, which is arranged above the top first catalyst bed, and the liquid phase feed is guided downward to the first catalyst bed; a gas phase feed subunit, which is arranged between the catalyst bed of the upper layer and the inclined surface of the next layer, and the gas phase feed of each layer enters the catalyst bed upward; a gas phase channel, which is in a relatively isolated state with the gas phase feed subunit, and the gas phase product generated after the gas phase feed and the liquid phase feed react in the catalyst bed directly enters the gas phase channel. The catalytic reaction distillation tower of the present invention also includes a rectification unit, which is arranged on the upper part of the catalytic reaction unit and rectifying the gas phase product generated by the catalytic reaction unit.

This utility model discloses a bending device, comprising: a frame, on which a drive mounting part and a bending part are provided, wherein the number of drive mounting parts is three, and the three drive mounting parts are evenly distributed on the frame, and each drive mounting part is provided with a drive device; and a bending mechanism, the bending mechanism comprising a side plate, a lifting plate, a pressure plate, and a pressure block, wherein the side plate is disposed on the bending part, the lifting plate is disposed on the bending part, the pressure plate is drivenly connected to the drive device, and the pressure block is movably disposed on the pressure plate, the position of the pressure block corresponding to the position of the lifting plate. This utility model can improve the processing range of the bending machine.

The invention belongs to the field of voice coil motors, and particularly discloses a moving coil framework structure for a voice coil motor and a coil winding method thereof.The top of a framework is provided with a binding post, the lower end of the binding post is provided with a first cylindrical surface, the lower end of the first cylindrical surface is provided with a first coil groove, and the lower end of the first coil groove is provided with a second cylindrical surface; the lower end of the second cylindrical surface is provided with a second coil groove, and the lower end of the second coil groove is provided with a third cylindrical surface. A special-shaped groove is formed in the first cylindrical surface, the upper end of the special-shaped groove is communicated with the binding post, and the lower end of the special-shaped groove is communicated with the first coil groove; and the three coil slots are communicated through the lead slots in sequence. On the basis of a group of outgoing lines and according to a specific winding process, the winding directions of the coils in the adjacent coil grooves in the structure are opposite, and the beneficial effects that in a Halbach magnetic field, the output force is increased by three times compared with that of a single-coil groove structure, the overall structure is compact, and driving control is convenient are achieved.

This invention belongs to the field of automated mobile platform technology, specifically a wheeled-tracked composite omnidirectional mobile platform. Four swing arms are symmetrically mounted on the vehicle body, with the left and right swing arms structurally mirror-image. Four Mecanum wheels on the four swing arms are diagonally mounted. The rotation of the tracked drive wheels and Mecanum wheels, as well as the pitching motion of the swing arms, are achieved through a drive system mounted on them and a pitching system within the vehicle body. The mobile platform can switch between tracked, omnidirectional wheeled, and legged movement modes through the pitching motion of the four swing arms. The drive motors of the drive system are installed inside the Mecanum wheels, resulting in a relatively smaller vehicle body size and increased space utilization of the entire robotic mobile platform. This invention provides a mobile platform for robotic patrol and reconnaissance work, particularly suitable for various complex unstructured environments, and features modularity, compactness, flexible movement, and wide adaptability.

The application specifically relates to the technical field of household appliances, and particularly relates to a sweeper, which comprises a base provided with a rolling brush cavity and a battery cavity on a side close to the ground, the rolling brush cavity and the battery cavity are adjacently arranged along a first direction; a rolling brush mechanism is movably installed in the rolling brush cavity; an installation cavity is arranged on a side of the base far from the ground and between the rolling brush cavity and the battery cavity; the installation cavity is in communication with the rolling brush cavity; a driving mechanism is arranged in the installation cavity; a driving end of the driving mechanism extends into the rolling brush cavity and is connected with the rolling brush mechanism; under the driving effect of the driving mechanism, the rolling brush mechanism moves along a third direction. The driving mechanism is directly arranged in the installation cavity, the space of the base is fully utilized, the space utilization rate is improved, and the overall volume of the transmission mechanism can be reduced. The volume of the driving motor and the transmission mechanism is large, the compact layout of the sweeper in the longitudinal height can be reduced, and the thickness of the sweeper can be controlled within a certain range.

The invention provides a surface soil conditioning and repairing system. The surface soil conditioning and repairing system comprises a rack, a sand box, a stirring shaft, a rotary digging assembly and a driving assembly. Wherein the rack is arranged on the traction equipment in a sliding mode in the vertical direction; the sand box is fixedly arranged at one end of the top of the rack; the stirring shaft is rotatably arranged on the sand box in a penetrating manner around the axis direction of the stirring shaft; the rotary excavating assembly is arranged at the bottom of the machine frame in the horizontal direction. The driving assembly is arranged at the top of the sand box, connected with the stirring shaft and the rotary excavating assembly and used for driving the stirring shaft and the rotary excavating assembly to rotate synchronously. The surface soil conditioning and repairing system can improve the soil texture and convert the soil texture into the soil texture suitable for growth of specific types of crops, and has the advantages of being high in operation efficiency and wide in application range.