97results about How to "Keep it steady" patented technology

The invention relates to the technical field of roadway stacking machines, in particular to a roadway stacking machine which comprises a stacking machine body and a fork for taking goods. The pallet fork comprises a cargo carrying table, a protection plate fixedly installed on the cargo carrying table, a cargo taking assembly for taking cargoes, a weighing table for obtaining cargo weight information and a labeling assembly for labeling different labels according to the cargo information. The bottom plate is fixedly installed on the cargo carrying table, and the weighing table is fixedly installed on the bottom plate. According to the invention, a pressure distribution measuring pad is fixedly installed on the weighing platform, the pressure distribution measuring pad obtains the weight of goods from the weighing platform in the transportation process and feeds back the weight to the electric control cabinet, and the electric control cabinet matches the type of the goods through the weight of the goods according to preset information and matches the position of the goods stacked on the goods shelf. The proper stacking mode and height are selected according to the weight of the goods, more accurate stacking of the goods is facilitated, stability and safety of the stored goods are guaranteed, and the phenomena of sinking, skewing or collapsing are avoided.

The invention belongs to the technical field of energy storage wire harness detection, particularly relates to a detection device and a detection method of an energy storage wire harness, and aims to solve the problem that in the prior art, when the energy storage wire harness is detected, time and labor are wasted due to the fact that the energy storage wire harness needs to be fixed on different detection instruments for multiple times, the following scheme is provided: the energy storage wire harness detection device comprises a fixed base; the fixing base is of a box body structure with an opening facing the front face, the back face of the fixing base is provided with an arc-shaped face sunken towards the front face, a vertical rear back plate is fixed to the position, close to the bottom, of the rear side of the fixing base, and a horizontally-arranged overturning operation table is hinged to the middle of the front face of the rear back plate. A clamping device and a wiring mechanism are arranged on the upper surface of the overturning operation table. According to the invention, during detection, when the overturning operation table is overturned to a detection position, the thermal insulation cover can enable the detection pool to form a totally closed state, and at the moment, the temperature in the detection pool can be rapidly increased by matching with the arrangement of the heater, so that whether the power-on condition of the wiring harness body in a high-temperature environment is good or not can be detected.

The invention relates to the technical field of unmanned aerial vehicle launchers, in particular to a marine unmanned aerial vehicle launcher. The marine unmanned aerial vehicle launcher comprises a supporting frame, a bottom bracket, a telescopic piece, an angle adjusting assembly, a lifting frame, a front supporting assembly and a rear supporting assembly. The two ends of the telescopic pieces are rotationally connected with the supporting frame and the bottom bracket correspondingly, and the multiple telescopic pieces are arranged at intervals; the angle adjusting assembly is arranged on the bottom bracket and is in transmission connection with the lifting frame; the front supporting assembly and the rear supporting assembly are arranged on the lifting frame at intervals in the length direction of the lifting frame, and the front supporting assembly and the rear supporting assembly are both used for being connected with the unmanned aerial vehicle. The front supporting assembly locks or releases the lug rods through the lock catches, so that the levelness of the bottom bracket can be adjusted by adjusting the lengths of the multiple telescopic pieces, it is guaranteed that the levelness of the bottom bracket is within the set range, and therefore the launching accuracy of the unmanned aerial vehicle is guaranteed.

The invention discloses an excavator dozer blade support welding device, and belongs to the technical field of dozer blade support welding machining. An excavator dozer blade support welding device comprises a base, two slidable moving frames are correspondingly arranged in the base, two arc-shaped frames are correspondingly and fixedly installed on the surface of the top end of any moving frame, the surfaces of the two arc-shaped frames are jointly and slidably connected with arc-shaped blocks matched with the arc-shaped frames, and a shovel plate is jointly placed on the surfaces of the two arc-shaped blocks. Two rotating grooves are correspondingly formed in the inner side face of any arc-shaped block, rotating blocks are rotationally connected into the rotating grooves, and clamping grooves used for fixing and limiting the shovel plates are formed in the end surfaces of the rotating blocks. Compared with a traditional welding process, the welding device for the dozer blade support of the excavator has the advantages that the stability in the welding process of the support body and the shovel plate is guaranteed, the welding precision of the contact part of the arc-shaped plate and the shovel plate is improved, the welding speed is increased, the welding quality is improved, and the labor intensity of workers is reduced.

The invention relates to the technical field of capital construction resin, and discloses a grouting repair material for ballast bed mud pumping and a preparation method of the grouting repair material. An epoxy resin composite material comprises modified epoxy resin, an iron sand mixed material and coated cured particles; wherein a preparation method of the modified epoxy resin comprises the following steps: taking epoxy resin, adding silicon carbide fibers and an organic solvent, pressurizing and stirring, heating, ultrasonically dispersing and cooling to obtain the modified epoxy resin; the coated cured particles comprise a curing agent and a water-soluble film coated on the surface of the curing agent, and the curing agent comprises an amino curing agent and 2, 4, 6-tri (dimethylaminomethyl) phenol. Epoxy resin is adopted as a base material, and the performance of the base material is improved, so that the performance stability of the material is improved; and by combining with a treatment process in a modification process, the bonding strength of the modified material and the resin base material is improved, so that the epoxy resin composite material can be quickly repaired and used for a long time in repair treatment of railway ballast beds such as subway tunnels and the like.

The utility model discloses a height-adjustable device for a diamond coating wire frame, which comprises a bottom plate and a support frame, a left molybdenum electrode and a right molybdenum motor are respectively and fixedly connected onto the support frame, a plurality of uniformly distributed lamp filaments are arranged between the left molybdenum motor and the right molybdenum motor, and a loading plate is arranged above the bottom plate. Lifting rods are fixedly connected to the four corners of the lower end face of the carrying plate, fixing columns are slidably connected to the bottom ends of the lifting rods, a fixing frame is fixedly connected to the upper end face of the bottom plate, first racks on connecting blocks are driven to be meshed with first gears through the extension amount of hydraulic telescopic columns, and the first gears drive second gears at the two ends of rotating rods to be meshed with corresponding second racks; and the lifting height of the loading plate can be more accurately controlled through control over the hydraulic telescopic columns, the flexibility and accuracy of the adjusting device in the using process are improved, and the quality of a diamond coating is improved.

The invention discloses a foreign matter detection device, a control method and a circulating fan. The device comprises a strong magnetic sheet which is fixedly arranged on a blade of the circulating fan; the induction coil is arranged on the edge of a fan face cover of the circulating fan; the micro-current sensor is connected with the induction coil and is used for collecting induction current generated in the induction coil; and the main control chip is connected with the micro-current sensor and is used for determining whether a foreign matter enters the circulating fan or not according to the induction current generated in the induction coil and collected by the micro-current sensor, and controlling a motor of the circulating fan to stop rotating when determining that the foreign matter enters the circulating fan. By means of the circulating fan, the problem that when foreign matter enters the circulating fan, the motor is damaged or surrounding people or objects are injured can be solved, the safety and stability of the circulating fan can be improved, the service life of the circulating fan can be prolonged, noise caused by the foreign matter can be avoided, and the user experience is improved.

The utility model relates to the technical field of constructional engineering equipment, in particular to a crawler-type lifting platform which comprises two groups of portal frames symmetrically arranged on the upper surface of a base mechanism, and a first platform is horizontally arranged between the two groups of portal frames; the base mechanism comprises square telescopic rods arranged on the two side walls of a base frame body correspondingly, hydraulic limiting rods are arranged at the ends of the square telescopic rods correspondingly, two sets of crawler wheels are arranged on the two sides of the bottom of the base frame in the length direction of the base frame body correspondingly, and a motor, a battery and an electric hydraulic module are sequentially and fixedly arranged in the base frame body. The motor and the electric hydraulic module are electrically connected with the battery. The hydraulic limiting rods save time and labor and are easy to operate, the stability and safety of the lifting platform are improved, the overall stability and terrain adaptability are improved through the two sets of crawler wheels, and the problems that an existing four-wheel lifting platform is poor in stability and limited in use scene are solved.

The folding type showing stand comprises a transverse plate and a showing frame arranged on the top of the transverse plate, a plurality of first supports are symmetrically arranged at the bottom of the transverse plate, supporting assemblies are installed on the first supports, each supporting assembly comprises a sleeve rod, a sleeve ring, a sleeve and a supporting rod, screw holes are formed in the side walls of the sleeve rings, rotary knobs are movably installed in the screw holes, limiting grooves are formed in the bottoms of the sleeve rods, and the limiting grooves are matched with the sleeve rods. The top of the sleeve is provided with a limiting plate, the limiting plate is installed in the limiting groove in an embedded mode and can rotate, the surface of the sleeve is provided with anti-skid lines, the surface of the supporting rod is provided with threads, the supporting rod is installed in the sleeve rod in an embedded mode, the bottom of the sleeve is provided with a second screw hole, and the supporting rod is in threaded connection with the second screw hole. The stability of the showing stand can be guaranteed when the showing stand is placed on the uneven ground, the showing stand is prevented from toppling over, and meanwhile the supporting assemblies can be folded and are convenient to store.

The invention discloses a biomass-based activated carbon material, and relates to the technical field of activated carbon material preparation, and the biomass-based activated carbon material comprises the following components by weight: 1 part of peony seed meal; 1-2 parts of cedar bark; the preparation method of the biomass-based activated carbon material specifically comprises the following steps: S1, drying, crushing and mixing peony seed meal and cedar bark to obtain a mixed raw material A; s2, putting the mixed raw material A into an evaporator, and performing low-temperature evaporation to obtain a mixed raw material A with high sulfate content; s3, performing ultrasonic impregnation and drying on the mixed raw material A with high sulfate content; carbonizing and activating to obtain a mixed carbon material B; s4, mixing the mixed carbon material B with sodium amide, and activating while isolating air to obtain a biomass-based activated carbon material; the problem of unstable quality of the biomass-based activated carbon material caused by unstable quality of the desulfurization waste liquid in the prior art is solved, the biomass-based activated carbon material with stable quality is prepared, the pore structure of the biomass-based activated carbon material is further optimized, and the adsorption performance is improved.

The invention relates to the technical field of robot end tools, in particular to design and a preparation method of a robot tool changer. The known technical parameters and the known mechanical principle of the robot are utilized, the load and the torque of the bearing mechanism are accurately calculated, and tool replacers of different specifications are manufactured. The robot tool changer is designed by utilizing a lever principle and a transverse pin structure, so that the tool changer and a tail end tool are positioned on the same stress surface, and the stability of the tool changer is ensured. The tool changer adopts a split type design, and the bearing mechanism and the tool changer body are made of double-alloy materials, so that the rigidity and durability of the tool are ensured, and the characteristic of light weight of the tool is also ensured. And different surface treatment processes are adopted for two different metal materials of the tool changer, so that the wear resistance and corrosion resistance of the tool changer are ensured. According to the technical scheme, large-scale industrial production can be achieved, and the application market of continuously-developing robot tool replacers is met.

The utility model discloses a modularization combined type photovoltaic panel cleaning vehicle, including cleaning machine body, drive crawler belt, fixed bolt, rotating shaft head and transmission main shaft, the left side of cleaning machine body is provided with fixed fixture block, the fixed fixture block is provided with open pore, fixed bolt passes through fixed fixture block, the upper part of cleaning machine body is provided with water inlet interface, the lower part of cleaning machine body is provided with water inlet interface. A battery pack is installed on the right side of the cleaning machine body, a driving crawler belt is arranged below the cleaning machine body, a water supply pipeline is arranged below the fixed clamping block, a water spraying opening is formed below the water supply pipeline, a transmission main shaft is arranged on the right side of the fixed clamping block, and a rotating shaft head is arranged on the left side of the transmission main shaft; a roller transmission protective cover is installed on the left side of the rotating shaft head, a rotating shaft is installed in the roller transmission protective cover, a cleaning roller is arranged on the left side of the rotating shaft, the equipment can be replaced and disassembled more conveniently, and the battery pack with the large size can provide longer cruising ability to guarantee continuous work.

The invention discloses a rotary lighting multi-layer three-dimensional planting device which comprises a movable base, the top of the movable base is rotatably connected with a rotating disc, the rotary lighting multi-layer three-dimensional planting device further comprises a planting frame, the planting frame is fixedly connected to the top of the rotating disc, and the top of the planting frame is fixedly connected with a protection assembly. The inner surface of the planting frame is in sliding connection with a planting assembly; and the filtering assembly is slidably connected to the inner surface of the planting frame, the bottom of the filtering assembly is slidably connected with a water pump, and the bottom end of the water pump is fixedly connected with a spraying pipe frame. According to the multi-layer three-dimensional planting equipment capable of rotatably lighting, a rotating disc is driven by a motor to rotate on a movable base, so that the lighting position of a planting frame is adjusted through rotation of the rotating disc, the sunlight receiving effect of a planting assembly is further improved, and a spraying pipe frame corresponds to the planting assembly in the planting frame; and the spraying pipe frame can conveniently irrigate the planting assembly.

The invention discloses a multi-layer structure test device for an anchor capstan assembly test, and the device comprises a cylinder which is provided with an axis in a vertical direction and is used for forming an installation space for installing an anchor capstan; the barrel body vertically penetrates through each platform plate of the multi-layer platform and is fixedly connected with the platform plate, and the platform plates form an expanded multi-layer mounting space or mounting plane around the barrel body and are used for mounting distribution equipment for a load test. The anchor capstan with the complex structure can be conveniently installed in multiple layers, the requirements for the parallelism and the coaxiality of the opposite installation faces are high, and safety and convenience of assembly can be guaranteed. The device can be installed on a test platform, can ensure stable hoisting, and can bear a required rated load during a test. The multi-layer structure test device is manufactured to meet the assembly test requirements of the same type of equipment with different sizes, and the test device can be disassembled after functional tests are completed to meet the requirements of the equipment in different batches. The test device can well meet the installation test of equipment with more than three layers.

The present invention discloses a fully automatic punching machine type manipulator, including a manipulator arm and a grasping mechanism installed at the bottom end of the manipulator arm, the grasping mechanism includes two first fixed arms in the same direction, two second fixed arms in the same direction, and a plurality of suction cups, the first fixed arm and the second fixed arm each have at least one suction cup, the two first fixed arms and the two second fixed arms form the diagonal of the rectangular body plane, and the first fixed arm and the second fixed arm can rotate around the vertical line where the midpoint of the rectangular body plane is located as a rotating axis. The present invention also discloses a fully automatic punching machine material picking system having the fully automatic punching machine type manipulator, and also includes a workbench, a frame, and a lifting mechanism. The beneficial effects of the present invention are that the surface shape of an object is matched by changing the shape of the grasping surface, so as to achieve the technical purpose of stably grasping the object and performing feeding; the technical purpose of positioning to a certain point in three-dimensional space for operation with good stability and high precision is achieved.

The utility model discloses an anti-toppling vacuum cup which comprises a vacuum cup body, a column body is fixedly connected to the bottom end of the vacuum cup body, a rotating block is fixedly connected to the column body, a base is rotationally connected to the column body, a plurality of sets of through openings are annularly machined in the base, and block bodies are slidably connected to the multiple sets of through openings. The multiple sets of block bodies are rotationally connected with rod bodies through connecting shafts, and the multiple sets of rod bodies are rotationally connected with the rotating block through connecting shafts. After the base is placed on a platform, the vacuum cup body drives the column body and the rotating block to rotate, the rotating block can pull the multiple sets of rod bodies to enable the multiple sets of block bodies to move outwards at the corresponding through openings, at the moment, the total occupied area of the base and the multiple sets of block bodies can be increased, the stability of the vacuum cup can be guaranteed, the toppling phenomenon is avoided, and meanwhile the service life of the vacuum cup is prolonged. And the handheld caliber of the vacuum cup is not increased, so that the handheld comfort can be prevented from being influenced.

The utility model relates to a cutting device for titanium alloy plate production. The cutting device comprises a placing plate, a lifting frame is arranged above the placing plate, a notch is formed in the lifting frame, and a flattening mechanism is arranged in the notch; the flattening mechanism is used for flattening and fixing the bent plate; the flattening mechanism comprises a two-way screw rod, a polished rod and a moving rod; the bidirectional lead screw is rotationally connected into the notch, the polish rod is fixedly connected into the notch and located on one side of the bidirectional lead screw, and the moving rod is connected to the outer side of the bidirectional lead screw and the outer side of the polish rod. The hydraulic cylinder drives the lifting frame to descend, so that the rolling wheels make contact with a plate, the bent plate is unfolded through movement of the rolling wheels, finally, the unfolded plate is fixed through the contact plate, in this way, the stability of the plate can be guaranteed when the plate is cut, and the plate cutting efficiency is improved. And the situation that the plate deforms and shakes due to changes of thermal stress during cutting is avoided, and the accuracy during cutting can be remarkably improved.

The invention discloses a full-automatic four-edge cutting unit for a starting sheet body. The full-automatic four-edge cutting unit comprises a material box conveying unit, a feeding unit and a cutting unit. One end of a guide rail of the feeding unit is arranged on the upper portion of a lifting device of the material box conveying unit, and the other end of the feeding unit is arranged on the upper portion of a first cutting conveying belt of the cutting unit. According to the starting sheet body four-edge cutting unit, the cutting quality of a starting sheet body can be guaranteed, the starting sheet body four-edge cutting unit is provided with the controller, and the controller can cut the starting sheet body according to signals of the height sensor, the material box proximity switch, the lifting proximity switch, the feeding position proximity switch and the discharging position proximity switch; the actions of the lifting device, the limiting device, the driving motor, the driving device, the lifting air cylinder, the air pump, the alignment telescopic device, the feeding telescopic device and the transition telescopic device are automatically controlled, automatic conveying, feeding, cutting and collecting of starting sheet bodies are achieved, manual participation is not needed, and the automation degree is high.

The utility model relates to a force-measuring balance mechanism for a circular tube, which comprises a translation plate, a lever seat is mounted on the side surface of the translation plate in an up-down moving manner, a lever is rotationally mounted on the lever seat, the lever forwards penetrates through the translation plate, and a force-applying bulge is arranged at the front end part of the lever; a supporting auxiliary assembly is mounted on the translation plate positioned below the lever, and a convex arc-shaped supporting surface of the supporting auxiliary assembly is positioned below the force application bulge of the lever; an inner support assembly is installed outside the front portion of the lever, the inner support assembly clamps an inner support of the circular pipe, along with forward movement of the translation plate, the end portion of the lever extends into the circular pipe, an outwards-protruding arc-shaped supporting face located below the lever extends into the circular pipe until the force application protrusion moves to a preset to-be-measured position of the circular pipe, and the lever seat is stressed to move upwards. The force application bulge at the end part of the lever counteracts on the inner wall surface of the to-be-tested circular tube to realize a force test, and meanwhile, the circular tube is structurally supported by the convex arc-shaped supporting surface below the force application bulge, so that the balance of the structural support of the circular tube in the test is realized, and the accuracy and the reliability of the test of a force application point are ensured.

The invention discloses a light-weight image fusion method based on a Mamb-KAN structure, and the method comprises the following steps: obtaining a registration source image, dividing the registration source image into overlapped image blocks, and constructing a Sheaf Laplacian matrix according to an overlapping relation and limited mapping; decomposing the Laplacian spectrum matrix, and projecting image block features into a Sheaf coefficient sequence; a Mama-KAN network is constructed, a Mama branch receives the coefficient sequence to extract fusion features, and a KAN branch calculates a block-level fusion weight according to the coefficient sequence and the fusion features; constructing a loss training network by using the Sheaf consistency energy and the reconstruction error; a lightweight network is obtained according to contribution pruning and quantification of the Mama channel and the KAN base unit to the consistent energy; in the fusion stage, a Sheaf coefficient sequence is generated and input into the lightweight network, and a source image is weighted according to a fusion weight to generate a fusion image. According to the invention, high-quality and low-overhead image fusion is realized.

This utility model discloses a length measuring device, including a base, a translation mechanism, a grating ruler, a movable clamping member, and a fixed clamping member. The translation mechanism is mounted on the base; the fixed clamping member is located at one end of the translation mechanism along its translation direction; the movable clamping member is mounted on the translation mechanism and driven by the translation mechanism, moving in a direction away from or towards the fixed clamping member; the grating ruler includes a scale grating and a reading head that slides along the length direction of the scale grating, the scale grating being parallel to the driving direction of the translation mechanism, and the reading head being connected to the movable clamping member. This utility model's length measuring device is convenient to operate and provides accurate test results.

This utility model discloses a pipeline transport trolley for on-site construction, belonging to the technical field of pipeline transport equipment. It includes a trolley body, a support frame, and a locking assembly. The support frame is rotatably connected to the trolley body and has a V-shaped structure. The locking assembly includes radial straps and axial straps. The two ends of the radial straps are connected to the two ends of the support frame, respectively. The axial straps are arranged along the axial direction of the pipeline, with one end connected to the radial strap and the other end provided with a hook. This utility model provides two sets of support frames to support and limit the two ends of the pipeline, ensuring pipeline stability; simultaneously, the radial and axial straps securely fix the pipeline, ensuring safe transportation.

The utility model relates to the technical field of camera detection, and discloses a detection device for camera definition test, which comprises a bearing chassis, the top of the bearing chassis is provided with a connecting frame, the surface of the connecting frame is provided with a brightness adjusting assembly, and the bottom of the bearing chassis is provided with a stable placing assembly. The brightness adjusting assembly comprises a placing plate, a limiting frame, a light guide plate, a sealing plate, a placing box, an LED lamp, a high-precision grating test pattern plate, a placing plate and an outer frame plate. According to the detection device for the camera definition test, the brightness adjusting assembly is arranged, the brightness adjusting assembly can be used for adjusting the brightness of the light source to adapt to the test requirements under different illumination conditions, and the brightness adjustment is realized by controlling to turn on different groups of LED lamps; and then the limiting frame, the light guide plate and the sealing plate form a guide mechanism for guiding the light source, so that the test requirements under different illumination conditions can be met, and the use effect is good.

The utility model relates to the technical field of expansion water tanks, and discloses a damping device for an expansion water tank, which comprises a water tank body, a bearing top plate is arranged at the bottom end of the water tank body, a damping cover plate is fixedly connected to the bottom end of the bearing top plate, and an outer protective cylinder is fixedly connected to the bottom end of the damping cover plate. And a sleeve rod is movably connected into the outer protective cylinder in a sleeved mode, a piston is fixedly connected to the outer wall of the sleeve rod, a spring isolation plate is fixedly connected to the bottom end of the sleeve rod, and a damping spring is fixedly connected to the top end of the spring isolation plate. According to the damping device for the expansion tank, water flows into the tank body of the water tank along with starting of the water pump and then is transmitted to the base for damping, equipment such as pipelines and valves in the water tank can be impacted and vibrated by vibration, fatigue damage and damage of the equipment are easily caused, the damping design of the base can reduce the influence of vibration on the equipment, and the service life of the equipment is prolonged. The service life is prolonged, and the maintenance and replacement cost is reduced.

The utility model discloses an adjustable support fixing device for a movable operating platform, which comprises a fixing support and an adjustable support, the fixing support is used for fixing the adjustable support on a base of the movable operating platform, the fixing support is a U-shaped frame, a side arm on one side of the U-shaped frame is longer than a side arm on the other side of the U-shaped frame, and the side arm is called a long side arm. The long side arm is provided with a plurality of positioning holes which are distributed in an arc shape in the opening side of the U-shaped frame at intervals, through holes are oppositely formed in the two side walls of the closed end of the U-shaped frame, and one end of the adjustable support penetrates through the through holes in the two side walls through a supporting rotating shaft to be rotatably connected with the U-shaped frame; penetrating holes are formed in the positions, corresponding to the positioning holes of the long side arm, of the adjustable support, the adjustable support is rotated to enable the penetrating holes to be opposite to one positioning hole according to the use state, and then a positioning rod is inserted into the penetrating holes and the positioning holes to position the adjustable support vertically downwards or horizontally or obliquely.

The invention provides a construction method for reinforcing a soil body through microorganisms. The construction method comprises the following steps that the soil body is paved layer by layer; measuring the natural moisture content and the optimal moisture content of the soil body; obtaining a soil body permeability coefficient, and determining the infiltration speed and required time of the moisture and the microorganism slurry in the soil body according to the soil body permeability coefficient; according to the difference value of the natural moisture content and the optimal moisture content of the soil body and the total amount of the soil body, the total amount of moisture needing to be supplemented for achieving the optimal moisture content of the soil body is calculated; determining the water required to be supplemented for averagely distributing each layer of soil body and the spraying times of the microorganism slurry required by each layer of soil body; according to the permeability coefficient of the soil body, calculating the infiltration time of the microorganism slurry per unit hydraulic gradient in the soil body; after permeation of the microorganism slurry is completed, the soil body is rolled, the compaction degree of the soil body is detected, and then a water filling test and a cutting ring test are conducted on the soil body; after it is detected that the design requirement is met, the next layer of soil body is paved; and repeating the steps until the soil body reaches the designed elevation and size.

The utility model relates to the technical field of casting and rolling machine devices, in particular to an automatic flow control device of a casting and rolling machine, which is used for controlling the releasing speed of a smelting furnace to the casting and rolling machine. The automatic flow control device of the casting and rolling machine comprises a motor, a transmission structure and a furnace mouth drill rod, the motor is arranged on one side of the releasing pipeline, the output end of the motor is connected with the transmission structure, the transmission structure is arranged on the releasing pipeline in a crossing mode, and the furnace mouth drill rod is erected on the transmission structure and penetrates into the releasing pipeline. The discharging speed of the smelting furnace to the casting and rolling machine is controlled by driving the furnace mouth drill rod through the motor, the automation degree is high, the labor cost is saved, the labor intensity of workers is reduced, the production efficiency is improved, the stability and the reliability of flow control in a discharging pipeline in the production process are ensured, and the capability of dealing with unfavorable conditions is improved.

The present invention provides a base structure and a fan, the base structure comprising: a first component, the first component is used to connect with the column of the fan or the head of the fan, at least part of the first component is rotatably arranged around a predetermined axis, an opening is provided on the first component, and the extension direction of the opening is the same as the direction of the predetermined axis; a second component, at least part of the second component is inserted into the opening so that the first component can rotate around the second component; a third component, at least part of the third component is a tubular structure, at least part of the third component is arranged between the first component and the second component, and the third component is rotatably matched with the first component and / or the second component; a driving component, the driving component is drivingly connected to the first component to drive the first component to rotate. The base structure of the present invention solves the problem of the shaking of the whole machine caused by the oscillating mechanism of the fan being arranged on the head in the prior art and affecting the service life of the motor.