950 results about "Rotating drum" patented technology

The invention discloses a laser cutting device for automobile parts, and relates to the technical field of laser cutting. The device comprises a machine tool, and the upper end of the machine tool is fixedly connected with a waterproof tabletop; and the pipeline clamping mechanism comprises a supporting seat fixedly connected to the waterproof table top, a rotating cylinder used for a pipeline to penetrate through is rotationally installed on the supporting seat, an electric three-jaw chuck is fixedly connected to the end of the rotating cylinder, and a driving piece used for driving the rotating cylinder to rotate and a pushing piece used for driving the pipeline to move are installed on one side of the machine tool. The double-driving mode of rotation and translation is achieved through the electric three-jaw chuck and a double-end clamping structure abutting against the rolling wheel base, angle adjustment and telescopic movement of the laser cutting head can be achieved through the hinge base and the telescopic frame, hollow-out cutting and special-shaped cutting operation of the pipeline can be achieved in cooperation with the translation driving mode of the pipeline, and the working efficiency is improved. And the flexibility and functionality of the device are improved.

The invention discloses a centrifugal machine for sludge dewatering, belongs to the technical field of sludge dewatering, and aims to solve the problems that when the centrifugal machine for sludge dewatering is used, sludge on the inner wall of a rotary drum can be gradually compacted to form a filter cake layer, particles in the filter cake layer easily form a bridging structure at an inlet of a through hole, and the sludge dewatering efficiency is affected. A controller is arranged on the outer wall of the supporting frame, a cylinder is arranged in the supporting frame, one side of the cylinder communicates with a drainage pipe, a first driving assembly is arranged in the cylinder, a dewatering assembly is arranged on one side of the first driving assembly, a second driving assembly is arranged in the cylinder and rotationally connected with the cylinder, and a sewage pumping assembly is arranged at the top of the supporting frame. According to the invention, dual blockage clearing of crushing blockages by the conical rod and purging by high-pressure gas is conveniently realized, shutdown disassembly is not needed, continuous smoothness of the water outlet hole is guaranteed, stable efficiency of centrifugal dewatering is maintained, and the dewatering effect is enhanced.

A washing machine includes: a cabinet having an inlet disposed on an upper part thereof; a tub disposed inside the cabinet and configured to accommodate washing water; a rotating drum rotatably disposed inside the tub; a pulsator rotatably disposed at an inner bottom of the rotating drum; a driving device configured to drive the rotating drum and the pulsator; and at least one processor, comprising processing circuitry, individually and / or collectively, configured to cause the washing machine to perform washing and dehydration processes.

The application discloses a kind of high insulating safety shoes and processing injection mold, it is related to safety shoes processing technical field, including processing device, the processing device is set on processing groove, several groups of rotating rods are rotatably connected on the inside, rotating drum is fixedly installed on the rotating rod, transmission belt is sleeved on the rotating drum, limiting slot is set on the transmission belt, one end of one of the rotating rod extends to the outside of the processing device, one end of the rotating rod is fixedly connected with the output end of driving motor, the driving motor is fixedly installed on first mounting frame, the first mounting frame is fixedly installed on the processing device.The application has reasonable structure, realizes the raw material of processing is poured into the inside of casting mold groove, then the lower mold base is transmitted to the baffle between by the operation of driving motor, the scraper moves by the operation of servo motor, so that the excess raw material on the casting mold groove is scraped by the scraper, so that the processing box is processed.

The application provides a steel wire pointing machine capable of adjusting the pointing diameter and the pointing angle, and belongs to the field of steel wire processing. The steel wire pointing machine comprises a feeding device and a pointing device arranged in line, a base supporting the pointing device, and a transmission assembly driving the pointing device to rotate; the pointing device comprises a rotating drum, a sliding disc sleeved in the rear half cavity of the rotating drum, at least three groups of roller shafts arranged in the circumferential array mode in the inner cavity of the rotating drum, wherein the axes of the roller shafts are parallel to the axis of the rotating drum, an adjusting component for adjusting the spacing between the roller shafts, and a second driving component driving the sliding disc to slide axially in the inner cavity of the rotating drum and adjusting the pointing angle. The application can adjust the pointing diameter and the pointing angle without replacing different types of rollers, meets the different pointing requirements of steel wires with large diameter differences, avoids the complicated roller replacement, and has the advantages of wide application range, strong universality, high pointing efficiency, high pointing quality, convenient use, time and labor saving, and the like.

The utility model discloses a heating device for accurate temperature control in a laminating process, which belongs to the technical field of laminating equipment and comprises an upper roller, a through groove is arranged at the edge of the inner side wall of the upper roller, a condenser pipe is fixedly connected in the through groove, and an adjusting component is rotatably connected to the middle of the inner side wall of the upper roller; through the adjusting assembly, the dislocation plate, the second thermal insulation layer and the condensation pipe, heat generated by the heating piece is isolated in the internal space to guarantee continuous and stable supply of the heat, then heat reaching the outer wall of the upper roller is controlled through a channel generated by dislocation of the dislocation plate and the rotary drum, the heat is prevented from being directly transmitted to the surface of the upper roller, and the service life of the upper roller is prolonged. According to the film laminating machine, the risk of film material deformation or damage caused by overheating is reduced, the temperature reduction speed can be increased through the condensation pipe, the temperature control efficiency is improved, efficient temperature control is achieved, meanwhile, heat is evenly dissipated from the middle to the periphery, and the temperature in the film laminating process can be more uniform.

This invention provides a slow-release feed device for marine aquaculture, relating to the field of marine aquaculture technology. It includes a rotating drum, a drum cover, and a fixed shaft. A rotating impeller is mounted on the rotating drum, which is connected to the drum cover to form a cylindrical space. The fixed shaft passes through the central axis of the rotating drum and drum cover and is rotatably connected to them. A cake holder, a feed cake, and a cake brush are installed within the cylindrical space. The cake holder is fixedly connected to the fixed shaft, and the feed cake is mounted and fixed on the cake holder. The cake brush rotates synchronously with the rotating drum, brushing the surface of the feed cake to accelerate slow release. Utilizing ocean currents or the up-and-down movement of seawater, the rotating impeller drives the rotating drum to rotate, which in turn drives the cake brush to continuously brush the slow-release flocculated layer formed on the surface of the feed cake. This effectively accelerates the diffusion and release of feed particles, solving the problem of excessively long natural slow-release time for feed cakes and their inability to pass through a 150-mesh or finer silk sieve, thus meeting the needs of aquaculture such as oyster farming.

The invention relates to the technical field of pavement maintenance, in particular to a portable pavement crack sealing hot patching device which comprises a movable frame, a support is fixedly connected to the movable frame, a storage assembly is arranged on the support and comprises a threaded column, the threaded column is rotatably connected to the support, a rotating cylinder is fixedly connected to the threaded column, and the rotating cylinder is fixedly connected to the movable frame. A plurality of placement grooves are formed in the rotary drum, sliding blocks are slidably connected to the interiors of the placement grooves, injectors are fixedly connected to the sliding blocks, a switching assembly is further arranged on the support and comprises sliding sleeves and first springs, the sliding sleeves are slidably connected to the interiors of the placement grooves correspondingly, and the first springs are fixedly connected to the sliding sleeves; the multiple first springs are fixedly connected between the multiple sliding sleeves and the inner wall of the containing groove. According to the pavement crack repairing device, injectors filled with different repairing materials can be selected according to different pavement materials, then the injectors are drilled into the ground to complete injection repairing of pavement cracks, the injectors can be cleaned after being used, and the situation that follow-up use of the injectors is affected by adhered soil and dirt is prevented.

The application relates to the technical field of tea seed and discloses a batch chaff removing equipment for tea seeds, which comprises a circulating tank and a chaff removing mechanism; the chaff removing mechanism is arranged above the circulating tank; the chaff removing mechanism comprises a base, a peeling assembly, a slotting assembly, a feeding assembly and a secondary seed separating assembly; the first rotating disc and the second rotating disc are driven by a rotating drum and a second rotating rod respectively, a rotating speed difference is formed between the first rotating disc and the second rotating disc, a tightening space is formed between the first rotating disc and the second rotating disc when the tea seeds enter, a friction force is formed between the rubber teeth on the two sides when the first rotating disc and the second rotating disc start rotating, the friction force can gradually peel the seed coat of the tea seeds, the hardness of the seed embryo is greater than that of the rubber teeth, so the seed embryo is not damaged, the purpose of removing the chaff of the tea seeds is achieved, and the seed embryo can be protected, so as to avoid affecting subsequent planting.

This application discloses a filtering device for processing vegetable fat butter, relating to the field of butter processing technology. It includes a support cylinder with a rotating heating mechanism at its top. The device utilizes a drive column to drive a connecting box to rotate horizontally, thereby causing a rotating drum to rotate horizontally around the drive column. Simultaneously, a bevel gear drives a pulley to rotate, which in turn drives a fixed disc to rotate via a rotating rod, causing the rotating drum to rotate around the axis of the rotating rod. This allows the rotating drum to rotate laterally along the axis of the rotating rod while simultaneously rotating horizontally with the drive column. The combination of the rotating drum's movement above the screen and its own rotation creates continuous, dynamic squeezing, kneading, and scraping of the screen surface, effectively breaking up the accumulated butter layer on the screen surface and preventing large particles and fibers from quickly clogging the mesh.

The application discloses a horizontal spiral concentration centrifugal machine for coal chemical industry and relates to the field of centrifugal machines, which comprises a machine shell, an inner rotating drum is arranged in the machine shell, a material distributing cavity is arranged in the inner rotating drum, countercurrent outlets and parallel flow outlets are arranged at positions corresponding to the material distributing cavity respectively, a boss is arranged in the material distributing cavity, countercurrent pressure tables and parallel flow pressure tables which are mutually symmetrical are arranged at positions corresponding to the countercurrent outlets and the parallel flow outlets respectively, sliding grooves are arranged on the two sides of the parallel flow pressure table, rotating shafts are slidably connected in the sliding grooves, and the rotating shafts are fixedly connected to sealing plates which are used for sealing the countercurrent outlets or the parallel flow outlets. The sealing plates can be slid to seal one of the outlets, so that the countercurrent discharging and the parallel flow discharging of the inner rotating drum can be conveniently switched, the inner rotating drum does not need to be disassembled, and only the ejector rod needs to be simply operated in the shutdown state, the shutdown time is effectively shortened, and the operation efficiency and the flexibility of the equipment are improved.

The application relates to the technical field of motor shell processing, and provides a multifunctional forming and processing device for a motor shell, which comprises a workbench for supporting various mechanisms to process the motor shell; a servo motor is fixedly connected at the bottom of the middle part of the workbench, the output end of the servo motor penetrates through the workbench and is fixedly connected with a rotating drum, a spring No. 2 is fixedly connected to the inner bottom of the rotating drum, a sliding plate is fixedly connected to the top end of the spring No. 2, a T-shaped frame is fixedly connected to the top end of the sliding plate, a plurality of pull plates are rotationally connected to the inner top end of the T-shaped frame, a plurality of polishing pieces are rotationally connected to the bottom ends of the pull plates, and the polishing pieces penetrate through the rotating drum away from one side. The polishing pieces can be in contact with the motor shell by overcoming the obstruction of the spring No. 2 through centrifugal force, and can realize the purpose of cleaning the inner wall under the driving of the rotating drum. In addition, the waste chip collecting mechanism can compress the chippings into a whole, so as to facilitate transfer and reuse.

The application discloses a soybean peptide preparation device and production process, and relates to the technical field of collagen peptide extraction. The soybean peptide preparation device comprises an enzymolysis tank, a feeding cylinder arranged at the middle part of the inner side of the enzymolysis tank, and a rotating drum arranged at the outer side of the feeding cylinder. At least one group of material limiting net frames are arranged at the outer side of the rotating drum. A half-cylinder type net bag one is arranged in the transmission channel of the material limiting net frame. The half-cylinder type net bag one is a half-cylinder type net cylinder. A half-cylinder type net bag two is arranged in the half-cylinder type net bag one. The half-cylinder type net bag two is composed of two groups of quarter net bags which can be opened and closed relative to each other. The rotation of the material limiting net frame is driven by the rotating drum, and the passive driving of the self-driving assembly in response to the rotation of the material limiting net frame drives the combined alternating operation of the two pairs of material buffering net bags and the stirring components in the material limiting net frame. The soybean material is rotated along the circumferential direction of the enzymolysis tank, and is gradually and stepwisely circulated back from top to bottom, so that the different-dimension synchronous enzymolysis reaction of the soybean material with the enzymolysis solution in the tank is realized.

This utility model relates to a bidirectional rupture disc safety device, comprising a rotating drum. A second bevel gear is fixedly mounted on the upper surface of the rotating drum. One or more holes are formed on the circumferential surface of the rotating drum. One or more first bevel gears mesh with the upper surface of the second bevel gear. A second fixing rod is fixedly mounted near the surface of the rotating drum, with the center of the second fixing rod and the center of the first bevel gear on the same horizontal plane. A connecting rod is sleeved on the outer surface of the second fixing rod. A lower clamping plate is disposed above the rotating drum. The end of the connecting rod away from the first bevel gear is fixedly connected to the lower inner surface of the lower clamping plate. This bidirectional rupture disc safety device uses pressure changes to drive the clamping plate to move up and down, and the meshing of the bevel gears to drive the rotating drum to rotate. This allows the interior of the pressure vessel to contact the exterior when pressure fluctuates, reducing the frequent application of pressure to the rupture disc, preventing its structural integrity from gradually deteriorating, and reducing the risk of accidental activation.

The utility model discloses regenerated plastic particle drying equipment, which relates to the technical field of plastic processing equipment and comprises a drying box and a drying cavity formed in the drying box. Granules needing to be dried are placed in the rotating cylinder, then one transmission gear is driven by the transmission motor to rotate, the other transmission gear connected with the transmission gear in a meshed mode rotates, the two transmission gears drive the butt joint blocks through the connecting rods respectively, the butt joint blocks connected with one side in a butt joint mode rotate, and drying is achieved. At the moment, the rotating cylinder can uniformly dry internal particles through an isolation net arranged on the surface, and after drying is completed, the whole bearing structure can be pulled out transversely through an extension rod, so that the situation that the particles accumulated inside cannot be uniformly dried is avoided, water attached to the surfaces of the plastic particles can be completely dried, and the drying effect is improved; and it can be guaranteed that the plastic particles cannot fly around during drying, and the drying effect of the device is remarkably improved.

The utility model discloses a kind of end clamping devices for hexagonal stud feeding, including main body assembly: the main body assembly includes rack, slide plate, mechanical arm and clamping hand;The slide plate is slidably connected at the top of rack, and mechanical arm is installed at the top of slide plate, and clamping hand is arranged at one end of mechanical arm;Receiving and releasing assembly: the receiving and releasing assembly includes fixed cylinder, main motor, rotating drum, threaded rod and guide groove;The fixed cylinder is fixedly connected at one end of mechanical arm, and main motor is fixedly connected at the outside of fixed cylinder, and rotating drum is fixedly connected at the inside of fixed cylinder, and threaded rod is fixedly connected at the connecting end of main motor, and guide groove is opened at the inner wall both sides of fixed cylinder, and the receiving and releasing assembly further includes lifting groove, screw cylinder, mounting disc and sliding block;The lifting groove is opened at the outer wall both sides of rotating drum.The end clamping device disclosed by the utility model has the effect of assisting workers to protect the clamping hand, reducing damage to the clamping hand caused by external factors.

The application provides a kind of concrete reinforced stone masonry wall, belongs to the field of construction technology;Including wall and a plurality of fixed mechanisms arranged in the corner of wall, the fixed mechanism includes fixed mechanism one, fixed mechanism two and arc block, the fixed mechanism one includes fixed block one, the inside of fixed block one is provided with linkage mechanism.The application sets up fixed mechanism, lets the fixed block one and fixed block two of wall same side be connected together by metal rope, instead of reinforcing steel bar use, and can be adjusted according to the angle of wall corner, can be used on the wall of different buildings, expands the use range, sets up linkage mechanism, lets the rotating drum rotate with the rising of fixed block one, so that the metal rope is taut with the movement of fixed block one, and the fixed block one and fixed block two are tightly attached on the wall without falling, forming the preliminary outside frame of wall, facilitating subsequent pouring of concrete reinforcing structure.

The application is a laser punching device with automatic switching of drum wheel phase and an implementation method thereof, comprising a servo drive system, a laser punching device and an axle encoder. The method is to set the transmission gears of the punching rotating drum wheel in the laser punching device and the preceding drum wheel adjacent to the laser punching device as half-tooth structures which do not interfere with each other, and the gear of the punching rotating drum wheel and the gear of the subsequent drum wheel on the cigarette machine are in meshing transmission connection. The preceding drum wheel is driven to rotate by the main motor of the cigarette machine, and the punching rotating drum wheel and the subsequent drum wheel are controlled to rotate by the servo drive system. The encoder for collecting position and speed signals is arranged at the position of the preceding drum wheel, and the encoder is in communication connection with the servo drive system. When producing laser punched cigarettes or non-punched cigarettes, only the setting of the electric control system is needed to automatically switch the drum wheel phase, thereby reducing manual labor and saving cigarette brand switching time. After being switched into the non-punched cigarette production mode, the mechanical parts of the laser punching equipment can be prevented from continuing to wear and tear, and the influence on the appearance quality of the cigarettes and the quality of the empty head of the cigarettes is also reduced.

The application discloses a kind of purification equipment of ultra-high purity quartz sand and its purification method, including immersion washing tank, the rotating drum is equipped in the immersion washing tank, the rotating drum is opened with door, motor is fixed on the immersion washing tank side plate on rotating drum side, the output shaft of motor is fixedly connected with the side of rotating drum and the side of immersion washing tank, the sealing upper plate is slidably connected on the immersion washing tank;By immersion washing tank, it can realize soaking cleaning and spraying effect by rotating drum, and double purification is carried out on quartz sand;By immersion washing tank, mixing box and sedimentation tank, acid liquid circulation is realized, resource is saved, and purification cost is reduced;By heating pipe on sealing upper plate and the PH tester that is equipped in the inside of immersion washing tank, mixing box and sedimentation tank, the temperature and PH value of acid can be effectively controlled, so that the concentration and PH value of acid always meet the requirement of quartz sand purification, temperature and concentration are strictly controlled, and high-purity purification of quartz sand is realized.

This utility model provides a screening mechanism for PET recycling, relating to the field of PET recycling technology. It includes a support frame, with an elastic element fixedly connected to the left end of the support frame. An electric telescopic rod is fixedly connected inside the elastic element, and a mounting plate is fixedly connected to the top of the electric telescopic rod. A first motor is fixedly connected to the outer surface of the mounting plate, and a stirring rod is fixedly connected to the lower output shaft of the first motor through the surface of the mounting plate. This PET recycling screening mechanism uses a second motor to drive a belt to rotate, causing a rotating drum to rotate. During the rotation of the drum, unsuitable materials or other impurities fall through the through-hole. The second motor drives the stirring rod to rotate the rotating shaft and the pusher plate, preventing material accumulation inside the drum and insufficient screening. The elastic element and the electric telescopic rod drive the stirring rod to reciprocate, causing the pusher plate to work with the spiral blades to move the PET material. Qualified PET material is pushed into the guide chamber, improving screening efficiency.

The utility model discloses a grain counting machine which comprises a machine frame, a hopper and a rotatable wheel disc are installed on the machine frame, a limiting sliding way is arranged at an outlet below the hopper in a left-right inclined mode, the wheel disc comprises an annular rotating drum, openings in the two sides of the rotating drum are blocked by sealing discs, and a cavity formed between the sealing discs and the rotating drum is communicated with an air suction pump. Adsorption holes which are evenly distributed in the circumference are formed in the circumferential wall of the rotary drum, a photoelectric sensor is further erected on the machine frame, the photoelectric sensor is close to the path where the adsorption holes pass through, a feeding bin is erected on one side of the wheel disc, a discharging bin is erected on the other side of the wheel disc, and an outlet of the limiting sliding way is formed in an inlet of the feeding bin. The peripheral wall of the rotary drum blocks the outlet of the feeding bin, the peripheral wall of the rotary drum rotates to pass through the inlet of the discharging bin, and a telescopic sealing plate is arranged at the position of the outlet of the discharging bin. In this way, the technical effect that the material quantity output can be accurately controlled can be achieved.

The invention relates to the field of double-cone dryers, and discloses a circulating type drying device for medicine preparation, which comprises a supporting seat and a rotary drum mechanism arranged on the supporting seat, a vacuum connecting pipe is arranged on one side of the rotary drum mechanism, one end of the vacuum connecting pipe penetrates through the rotary drum mechanism and is provided with a connecting assembly, and a cleaning assembly is arranged on the outer side of the connecting assembly. A sliding heavy block is arranged on one side of the cleaning assembly, a trigger assembly is arranged on one side of the cleaning assembly, the connecting assembly comprises a connecting bent pipe, and one end of the connecting bent pipe is fixedly connected with a filter. The rotary motion of the rotary drum is converted into the up-down reciprocating motion of the sliding weight through the screw rod, then the screw rod is driven to rotate, the rotary motion is transmitted to the four wall scraping rods attached to the inner wall through the cross rod, the four wall scraping rods conduct reciprocating scraping on the inner wall of the inner shell, and wet or semi-dry medicine attached to the inner wall is scraped away. And the medicament is prevented from scaling on the hot wall surface.

This invention discloses a raw material mixing and pretreatment device for zirconia processing, comprising an operating box, a crushing component, a screening component, and a mixing component. The crushing component includes a rotating drum, the outer side of which is fixedly connected to a mounting frame. The screening component includes a screening drum, the upper and lower sides of which are respectively connected to an upper hose and a lower hose. The mixing component includes a mixing drum, the interior of which is equipped with stirring blades. This invention breaks down agglomerated zirconia using the crushing component and utilizes the hollow of the rotating drum to eject hot air from the air cap, improving the dispersion and drying of the zirconia raw material. This prevents foaming caused by moisture within the zirconia during subsequent mixing. The rotating plate drives the connecting plate, causing the screening drum to vibrate. This, combined with the internal perforated plate, further mixes the zirconia powder before it is evenly fed into the mixing drum, avoiding poor solvent mixing due to a single addition of zirconia.

The utility model provides a highway maintenance engineering is with foldable fence belongs to highway maintenance equipment technical field. Including the fence body, the fence body one side is provided with hollow rotating drum, the fence body other side is provided with folding subassembly, the hollow rotating drum inside rotatable connection another fence body's folding subassembly, the folding subassembly inside whole penetration, the folding subassembly is used for folding to the fence, the folding subassembly inside rotatable connection has adjusting assembly, adjusting assembly is used for adjusting fence folding angle and bottom pulley, the folding subassembly includes connecting shaft, connecting shaft one end fixed mounting in the fence body side. The utility model is through the close cooperation between folding subassembly and adjusting assembly, has realized the folding function of fence, can adjust folding angle and bottom pulley, has promoted the practicality and flexibility of fence in highway maintenance engineering.

The invention provides a blade telescopic type flow direction self-adaption underwater power generation device and method, and belongs to the technical field of ocean energy power generation. The device comprises an underwater base system, a direction adjusting and locking system, a blade telescopic type energy capturing system and an energy conversion system. By arranging an annular guide rail base and a revolution stand column and adopting a plug pin type locking structure, controllable steering and direction rigid locking of the device when the water flow direction changes are achieved; the blades capable of stretching and retracting in the radial direction are arranged on the rotating roller, so that the blades are unfolded to capture energy under the power generation working condition and folded to reduce resistance under the reversing or extreme working condition, and therefore the water flow load is reduced; water flow drives the rotating drum to rotate and is transmitted to the generator through the rotating shaft and the speed increaser to obtain electric energy. The device can adapt to variable water flow environments, the operation stability and the power generation efficiency are improved, and the safety and reliability of the device under complex hydrological conditions are enhanced.

The utility model discloses a drum type equal shear membrane separation device, relates to liquid separation technical field, including pool body, servo motor, drum, brush and peristaltic pump, the drum is placed in the pool body and rotatingly connected, servo motor drives the drum, the outer surface of the drum is wrapped with membrane, and the membrane is arranged in the pool body. The brush is located on the side face of the rotary drum and provided with a distance adjusting mechanism, a hole is formed in the drum face of the rotary drum and communicated with the interior of the pool body, and the interior of the rotary drum is communicated with the peristaltic pump. The utility model provides a rotary drum type equal-shear membrane separation device, which combines dynamic rotation of a rotary drum with an automatic cleaning system, is adjustable and controllable in flow and rotating speed, generates uniform shear force through rotation of the rotary drum, delays membrane pollution and reduces manual intervention.

The vertical centrifugal machine comprises a rack, a shell is arranged on the rack, a rotary drum is rotatably installed in the shell, a driving mechanism is arranged on the rack, the cleaning mechanism is arranged on the shell and comprises a cleaning roller and a connecting frame, the connecting frame is installed on the shell in a sliding mode, and a lifting assembly is arranged on the rack and is connected with the driving mechanism. The two cleaning rollers are arranged on the connecting frame and located on the side walls of the inner ring and the outer ring of the rotary drum correspondingly, and a water spraying mechanism is arranged in the shell. And when the rotary drum needs to be cleaned, the lifting assembly drives the connecting frame to move so as to drive the cleaning roller to move to the inner ring side wall and the outer ring side wall of the rotary drum, at the moment, the water spraying mechanism sprays water, the rotary drum rotates, meanwhile, the connecting frame drives the cleaning roller to move to clean the inner side wall and the outer side wall of the rotary drum, and the rotary drum cleaning device has the effect of being convenient to clean the rotary drum.

The application belongs to the technical field of rail transit engineering measurement, and discloses a rail transit engineering installation measurement device, which comprises a horizontal plate slidably installed on the top of a rail, a laser measuring instrument is installed on the top of the horizontal plate, supports are installed on the left and right sides of the laser measuring instrument, and an installation mechanism is installed on the bottom of the support. In the process of downward pressure, the connecting rod, the connecting seat and the synchronous plate are driven to rotate synchronously around the axis of the fixed column, the non-hinged end of the synchronous plate is driven to extrude the fixed plate downward, thereby the pressure is elastically transmitted to the moving plate and the rotating drum through the compression spring II, the rotating drum is abutted with the top of the rail, the condition of rolling friction is formed, when the device moves along the surface of the rail, the irregular wear caused by sliding friction in the traditional technology is avoided through the rolling and adaptive contact support of the rotating drum and the surface of the rail, and the calibration accuracy of the laser measuring instrument is improved.

To provide a ball sorting device that can sort balls without putting unnecessary stress on them. [Solution] The ball sorting device 1 includes a rail 3 that moves the balls by the action of gravity, an opening 5 provided on the extension of the rail 3, a movable rail 6 that opens and closes the opening 5, a rotating drum 4 located opposite the opening 5, at a position where the distance between the rotating drum 4 and the movable rail 6 when the opening 5 is closed is slightly narrower than the diameter of the ball, and an air cylinder 9 that supports the movable rail 6, and the air cylinder 9 opens and closes the opening 5 by expanding and contracting when the movable rail 6 is displaced by a specific amount from the closed state of the opening 5.

The invention discloses an intelligent outdoor box-type transformer substation heat dissipation system, and belongs to the field of box-type transformer substation heat dissipation systems, the intelligent outdoor box-type transformer substation heat dissipation system comprises a box-type transformer substation body, the inner wall of the box-type transformer substation body is rotatably connected with two groups of movable doors, and the number of each group of movable doors is two; one side face of each movable door is fixedly connected with two fixing blocks, the inner walls of every two fixing blocks are rotationally connected with long shafts, the outer surface of each long shaft is fixedly connected with a rotating drum, the outer surface of each rotating drum is fixedly connected with a stress blade, the outer surface of each rotating drum is fixedly connected with a transmission gear, and in addition, the outer surface of each rotating drum is fixedly connected with a transmission shaft. When the parts, without teeth, of the surfaces of the transmission teeth rotate and the knocking plate is in position, the knocking plate can reset under the action of the reset spring and knock the filter frame, so that dust on the surface of a filter screen in the filter frame vibrates, the purpose of automatically knocking the dust is achieved, and the problem that the dust on the surface of the filter screen in the filter frame needs to be treated regularly when equipment is used is solved.