64results about How to "Large adjustment margin" patented technology

The invention provides an axial-radial hybrid flux permanent magnet machine, belonging to the field of permanent magnet machines. The permanent magnet machine includes a stator, a rotor, and a shaft, the stator is fixed on the shaft through fixed connection, the rotor is arranged at the outer side of the stator, the rotor and the shaft are in rotation connection through a bearing, the stator core is formed by the uniform circular arrangement of a plurality stator core modules along the shaft, each stator core module is provided with a radial tooth and two axial teeth and is provided with a stator winding, a plurality of radial permanent magnets are uniformly distributed on the inner circular wall surface of the rotor and are uniformly surrounding the shaft, and the inner surface of the end faces of the two sides of the rotor are uniformly provided with a plurality of axial permanent magnets in a radial manner. The axial-radial hybrid flux permanent magnet machine can effectively solve the problems that a permanent magnet machine in the prior art is small in space availability, non-compact in motor structure, difficult in machining and assembling, and cannot effectively improve the torque density and power density.

The invention discloses a cavity filter, and relates to the communication technology to achieve the goal of enlarging the power capacity of the filter and the adjustment range of the frequency under the condition that the cavity depth of the filter is small. The cavity filter comprises a cavity with an upper end open, a cover plate, a tuning screw and a resonant rod, wherein the resonant rod is fixed on a baseplate of the cavity and is held inside the cavity, the cover plate is fixedly installed at the opening portion of the cavity and the cover plate is provided with a screw hole, the tuning screw matches with the screw hole, and one end of the tuning screw penetrates the cover plate and stretches into the cavity. A through hole is formed in the middle of the resonant rod, the tuning screw stretches into the through hole, and the outer wall of the resonant rod and the baseplate of the cavity are fixedly connected. The cavity filter enlarges the power capacity of the filter and the adjustment range of the frequency under the condition that the cavity depth of the filter is small.

The invention discloses an adjustable electromagnetic hybrid coupling filter comprising a cavity and resonant columns. The resonant columns are fixed in the cavity and resonant frequencies generated by the resonant columns can be adjusted. A capacitive coupling structure and an inductive coupling structure are arranged between each two adjacent resonance columns, wherein capacitive coupling capacity of the capacitive coupling structure and the inductive coupling capacity of the inductive coupling structure can be adjusted. On the basis of coexistence of the two coupling structures, an electromagnetic hybrid coupling structure is formed. A compensation structure connects two resonant columns not adjacent to each other to generate capacitive and / or inductive coupling between the resonant columns not adjacent to each other. Therefore, the location of the passband near-end transmission zero point is adjusted in a large range and thus the distance to the bandpass is reduced, so that the near-end out-of-band rejection is improved and the in-band echo and inversion loss index are enhanced.

The invention provides a laser pulse contrast ratio measurement device based on optical limiting. In the laser pulse contrast ratio measurement device, a collimating mirror, an attenuation piece and a beam splitter I are sequentially placed in the high-power laser pulse incidence direction, a frequency doubling crystal, a filtering piece and a beam splitter II are sequentially arranged on a transmission light path of the beam splitter I, a half wavelength plate and a beam splitter III are sequentially arranged on a reflection light path of the beam splitter I, a convex lens I, a limiter, a convex lens II and a delay regulator are sequentially arranged on the reflection light path of the beam splitter III, frequency doubling light generated by the frequency doubling crystal is divided into a transmission portion and a reflection portion through the beam splitter II, the transmission portion and the reflection portion are parallel to transmission fundamental frequency light from the beam splitter III and reflection fundamental frequency light from the beam splitter III respectively and enter two third-order correlators respectively, correlated signals generated by the two third-order correlators are collected through a CCD, and finally, data are processed through a computer. The laser pulse contrast ratio measurement device is flexible and convenient to adjust and wide in test dynamic range.

The invention relates to a rod of adjustable prenex control rod formed by three sections, wherein the middle rod and two end rods are connected via reversed screws; the two end rods with outer screws have locking nuts; via rotating middle rod, two end rods can extend to two ends. Therefore, the invention has large adjustment range, and the middle rod can be rotated by spanner. After adjustment, it can be locked by locking nut.

The invention provides a gear shaft back-up bearing cover rotary alignment structure and an alignment method. The alignment structure is characterized in that a bush I and a bush II are pressed into bottom holes of a gear case and a bearing cover in an interference manner, shafts at the two ends of a gear are installed in inner holes of the bush I and the bush II, a spline housing matched with thegear is arranged in the gear, and the other end of the spline housing is matched with a cam shaft; and the bearing cover is assembled to a gear case cover, and the gear case cover is assembled on thegear case. By means of the structure and the method, the structure design of concentricity of the rotating inner holes of the two bushes is guaranteed through assembling; the machining process is greatly simplified, and the part universality and interchangeability are guaranteed.

The invention discloses a hard rod type gear-changing system for a transmission gear, which is a single-hard-rod gear-changing system comprising a control mechanism, an expansion link assembly, a gear-changing assembly and a gear-selecting assembly; the control mechanism is connected with the expansion link assembly through a bulb or a revolute pair, the expansion link assembly is respectively connected with the gear-changing assembly and the gear-selecting assembly through a bulb or revolute pair, and a plurality of mounting hole positions are arranged on the end part of the expansion link assembly. By adopting the technical scheme of the invention, the technical problem of poor self-regulation adaptability of the hard rod type gear-changing system in the prior art can be effectively solved; meanwhile, the hard rod type gear-changing system also has the advantages of enabling the gear-changing system to have larger regulation allowance (+ / -80) because the installing hole positions are additionally arranged on the tail end of an expansion link, further improving the gear-changing handfeel, increasing the gear-changing smooth property, reducing the running out of gear probability and decreasing the shake amount and the out of gear probability of the gear-changing handle due to poor road conditions.

The invention discloses a regeneration control system and a regeneration control method for an organic waste gas adsorption device. The organic waste gas adsorption device comprises a catalytic combustion device, adsorbents in the waste gas adsorption device are arranged into a plurality of regeneration areas at intervals in a layered manner, a plurality of regeneration gas distribution areas areformed in gaps among the adjacent regeneration areas and gaps among the regeneration areas on the two sides and a box body of the waste gas adsorption device, the regeneration gas distribution areas are sequentially and alternately provided with regeneration air return openings or regeneration air supply openings, the regeneration air return openings are respectively and correspondingly provided with regeneration air return valves, the regeneration air supply openings are respectively and correspondingly provided with regeneration air supply valves, the regeneration air return openings are inparallel connection with the air inlet end of the catalytic combustion device through regeneration fans, the regeneration air supply openings are in parallel connection with the air outlet end of thecatalytic combustion device through regeneration air volume adjusting valves, and heat distribution valves are further in parallel connection to an air inlet of the catalytic combustion device and thetwo ends of the regeneration air volume adjusting valves. The regeneration control method disclosed by the invention is an adsorbent regeneration control technology for the large-capacity organic waste gas adsorption device, and the adsorbent regeneration control technology has the advantages of evenness, stability, high efficiency and safety.

The invention discloses a method for eliminating interference during signal sampling. The method is applied to a sampling system of which a ratio of the working frequency to the sampling frequency is n and comprises the following steps of: sampling once in each of m continuous working periods in a sampling period; sequentially storing obtained sampling values into a distributed sampling register group; taking the sampling values out of the sampling register group, comparing the sampling values and outputting the sampling values which are large in amount in the m sampling times as an output values of the current sampling period, wherein 2 is less than m, and m is less than n. According to the method, the interference during signal sampling can be effectively eliminated, so that the system expense can be reduced; and furthermore, the probability of acquiring a real value is relatively high, so that the improvement room is relatively large.

The invention relates to a water cooling technology of a power element, in particular to a novel pipeline for a water-cooling system. The invention solves the problems of an existing pipeline for the water-cooling system that the sealing performance is difficult to ensure, the cooling efficiency is low and the arrangement is difficulty. The novel pipeline for the water-cooling system comprises a cooling power part, a radiating part and a cooling circulating pipeline part; the cooling power part comprises a water pump; the radiating part comprises a radiator; the cooling circulating pipeline part comprises a radiating pipeline, a water inlet pipeline, a water outlet pipeline and the power element; and the radiating pipeline, the water inlet pipeline and the water outlet pipeline respectively comprise a rubber hose and two bent pipes which are respectively inserted on both ends of the rubber hose. The novel pipeline for the water-cooling system effectively solves the problems of the existing pipeline for the water-cooling system that the sealing performance is difficult to ensure, the cooling efficiency is low and the arrangement is difficult, and is applicable to the water cooling processes of various power elements.

The invention discloses a gear dropping and skipping prevention single pole shifting rigid operating mechanism comprising an operating rod, an operating mechanism, a converting mechanism, a positioning rod mechanism, a left link mechanism, a right link mechanism and a positioning rod support fixed to the housing of a gearbox. The operating mechanism is used for converting the motion of the operating rod into motion of the link mechanisms; the converting mechanism is used for converting the motion of the operating mechanism into gear shifting operation inside the gearbox; the link mechanisms are used for connecting the operating mechanism and the converting mechanism, reducing the secondary impact on the gearbox during dynamic shifting through a buffer block assembly and decreasing the number of gear dropping of the gearbox in the vehicle driving process; the positioning rod mechanism matches with the link mechanisms and controls the motion of the converting mechanism to implement the shifting operation in the gearbox; the positioning rod support is used for fixing the positioning rod mechanism. The mechanism has the advantages that the occupation is small, and the operating system has high adaptability for self adjustment.

The invention relates to the technical field of unpowered drainage devices for wastewater treatment sedimentation tanks, in particular to a duckweed isolating type quantitative floating water outlet device. The device comprises an upper slide way fixing frame, inductance approach switches, float bowls, water distribution weir plates, a drainage tank, float bowl adjusting devices, drainage telescopic pipes, a water collecting pipe, an electrically-operated valve, a sedimentation tank, limiters, support slide ways and drainage tank guide sleeves. The device is characterized in that the drainage tank guide sleeves are welded with the drainage tank and are sleeved on the support slide ways, the drainage telescopic pipes are connected on the water collecting pipe by welding, the water distribution weir plates are symmetrically mounted on two sides of a drainage tank end plate, the float bowl adjusting devices are welded in the middles of two ends of the float bowls, and the float bowls can move up and down by rotating float bowl adjusting bolts so that quantitative drainage is achieved. The electrically-operated valve is mounted on an outer pipe portion of the water collecting pipe extending out of the sedimentation tank, and drainage automatically stops when the sedimentation tank reaches an upper limit water level and a lower limit water level by the aid of the upper limiter, the lower limiter and the inductance approach switches. The duckweed isolating type quantitative floating water outlet device is free from powered energy consumption, low in equipment investment and operating maintenance cost and high in operating stability.

The invention belongs to the technical field of mold processing design, and discloses a mold assembly and a method for assembling the mold assembly. The mold assembly includes a female mold assembly and a male mold assembly; the female mold assembly includes a female mold side mold plate and a female mold core assembly, the female mold side mold plate is provided with a female mold mounting-clamping block, the female mold core assembly can be mounted on the female mold side mold plate through the female mold mounting-clamping block in a clamping mode, and the female mold core assembly is provided with a female mold positioning block; and the male mold assembly include a male mold side mold plate and a male mold core assembly, the male mold side mold plate is provided with a male mold mounting-clamping block, the male mold core assembly can be mounted on the male mold side mold plate through the male mold mounting-clamping block in a clamping mode, and the male mold core assembly is provided with a male mold positioning block. The method for assembling the mold assembly uses the mold assembly. Through the arrangement of the female mold mounting-clamping block and the male mold mounting-clamping block, assembly wedges are not needed, the assembly of molds is simpler, and the positioning is more accurate.

The invention provides a centrifugal separation drum machine. The centrifugal separation drum machine comprises an upper drum, a lower drum, a limiting retainer ring, a positioning ring and a drivingshaft; the internal of the upper drum is equally divided into multiple separation chambers in the radial direction; a feed pipe is arranged in the upper drum; one end of the feed pipe is connected with the top of the upper drum; a feed distribution disc is mounted at the other end of the feed pipe; the bottom of the upper drum is contacted with the lower drum through a stop port; the limiting retainer ring is mounted at the external of the upper drum; an inner ring of the positioning ring is slidingly connected with the lower drum; the positioning ring is connected with the limiting retainer ring; a slag outlet and the multiple separation chambers do not communicate through a stop port sealing surface; an inner hole of an input shaft sleeve of the lower drum is connected with the driving shaft; and a slide adjusting mechanism is mounted at the external of the input shaft sleeve of the lower drum. The centrifugal separation drum machine can guarantee maintenance of synchronous rotatingspeed of a separation medium and the drums; the medium is relatively static without generating disturbance; the separation state is the same with an experiment centrifuge; and the solid-phase slag outlet flow can be randomly adjusted.

The invention discloses a connected component used for connecting a first connecting piece to be connected with a second connecting piece to be connected, comprising a subplate, a shock pad and a connecting piece; wherein the subplate is connected with the first connecting piece to be connected, the shock pad is arranged above the subplate and is connected with the subplate, the connecting piece is arranged above the shock pad and is connected with the shock pad, and the connecting piece is thereon provided with a connecting groove and is connected with the second connecting piece to be connected through the connecting groove. The connecting piece has the function of shock absorption, and can provide comparatively large adjusting margin for connection in a certain direction.

The invention discloses an adjustable pipeline supporting part which comprises a drive wheel, chains, a driven wheel, a supporting post and a power part used for driving the drive wheel to rotate along axis, wherein the drive wheel is parallel to the ground; the driven wheel and the drive wheel are arranged at different sides of the supporting post; the driven wheel and the drive wheel are on the same horizontal height, and the axis of the driven wheel and the axis of the drive wheel are parallel to each other; a plurality of inner teeth, which are matched with the drive wheel and the driven wheel by engagement, are arranged at the inner side of the chains; one end of each chain is fixedly connected to one side wall of the supporting post; the other end of each chain is sequentially matched with the drive wheel and the driven wheel by engagement, and then is fixedly connected to the other side wall of the supporting post; the chains are in a tensioning state; and the supporting post is fixedly connected to a fixed circular ring used for allowing a pipeline to pass through. The supporting part disclosed by the invention can adjust the pipeline to move left and right in the horizontal direction, so that the pipeline mounting has relatively great adjustment allowance without the needs of precisely positioning in advance, but only needs rough positioning, and therefore, the working efficiency is improved and the mounting quality is guaranteed.

The air conditioning and purifying system flow pattern for clean room relates to air conditioning and purifying system specially for clean room. The design scheme of the present invention includes movable floor between the clean room and the lower sandwich layer, upper static pressure box, efficient filter in the top of the clean room, and return airway on two sides of the clean room. The present invention features that inside the static pressure box, there are several self-circulating blowers with medium efficiency filtering section, surface cooling section, blower section and air outlet section. The air outlet section distributes treated air via air duct to several efficient air outlets with efficient filter and clean room successively. Each of the air outlets includes efficient filer and casing with air inlet port for connecting air duct and flow homogenizing board.

The invention relates to the technical field of mechanical equipment and discloses a tensioning device. The tensioning device comprises a fixing frame (1), first-stage adjustment units, a base plate (3) and a second-stage adjustment unit, wherein the number of the first-stage adjustment units is at least two, and each first-stage adjustment unit penetrates through the fixing frame and is fixedly connected with a corresponding steel wire rope (2) so as to adjust the tension degree of the steel wire rope; and one end of the second-stage adjustment unit penetrates through the base plate, and theother end of the second stage-adjustment unit is connected to the fixing frame and is used for adjusting the distance of the portion, between the fixing frame and the base plate, of the correspondingsteel wire rope in the length direction. According to the tensioning device, the two stages of adjustment units are used for adjusting the tension degrees of the steel wire ropes, so that the adjustment allowance of the steel wire ropes is maximized; and one first-stage adjustment unit is arranged corresponding to each steel wire rope so that when multiple steel wire ropes need to be adjusted, theinitial lengths of the multiple steel wire ropes can be adjusted to be uniform through the first-stage adjustment units, and it is ensured that all the steel wire ropes are evenly stressed.

The invention discloses a steel strand connecting piece. The connecting piece comprises a fixing plate, two baffles and a through tube, wherein the two baffles are arranged at the same side of the fixing plate in an opposite mode, the two ends of the through tube are connected with the inner sides of the two baffles respectively, and the fixed plate is provided with a connecting hole; an expansion tube is connected to the outer side of each baffle, the expansion tubes and the through tube are all of hollow structures, and the expansion tubes are communicated with the through tube. The steel strand connecting piece is simple in structure, easy in formation and serial production, high in inherent structural strength, anti-corrosion and capable of resisting against large wind load and snow load, the connecting piece does not get rusty under severe weather, when a photovoltaic module is connected with a steel strand, due to the fact that the steel strand connecting piece can move freely in the axial direction of the steel strand, large adjustment allowance can be achieved, and the connecting piece is convenient to install, high in flexibility ratio and not prone to falling off.

The invention discloses a glue injecting type horizontal rod pushing device, a curtain wall installing structure and a curtain wall installing method. The glue injecting type horizontal rod pushing device comprises a fixing bottom plate, a regulating sleeve, a horizontal pushing rod and a connecting rod mechanism which are sequentially connected; the end part of the regulating sleeve is fixedly connected with the fixing bottom plate; a glue injecting hole is formed in the side wall of the regulating sleeve; the head end of the horizontal pushing rod is arranged in the regulating sleeve in a sleeving way; the tail end of the horizontal pushing rod is connected with the connecting rod mechanism. The glue injecting type horizontal rod pushing device is used for curtain wall installation. A specially-made mechanical structure is used, so that any one piece of stone in a stone curtain wall can be independently installed; safety, convenience and high speed of the curtain wall stone installation are improved.

The invention discloses a dual-adjustment unpowered supernatant quantitative discharging device and relates to the technical field of sewage treatment and discharging devices. The dual-adjustment unpowered supernatant quantitative discharging device comprises an upper slide fixing frame, a buoy, a water distribution weir plate, a water discharge tank, a buoy adjusting device, a telescopic water discharging pipe, a water collection pipe, a support slide and a water discharging tank guide sleeve, and is characterized in that flow of treated sewage is changed by dual adjustment of draft by the aid of the buoy and the water distribution weir plate. The dual-adjustment unpowered supernatant quantitative discharging device has the advantages that adjustment allowance is large, and requirements on quantitative discharge of advection oil removal sedimentation tanks of different treatment capacities can be met by one device without increasing equipment investment; a base, a support slide base and the slide fixing frame are firm and solid in fixation and reliable in operation; power consumption is avoided, equipment investment of submersible pumps is saved, and operation and maintenance cost is low; maintenance is needless after once adjustment, and maintenance cost is saved almost; and since discharged water is constantly supernatant on the upper surfaces of the sedimentation tanks, the effluent water quality is superior to water discharged by the submersible pumps, and load of subsequent treatment facility is further relieved.

The invention provides a sectional material component which is installed on a sectional material body to form at least one part of a sectional material cavity. The invention further provides a profile and a photovoltaic module frame. According to the invention, the strength of the section bar, the frame and the assembly frame can be enhanced, the cost is reduced, the installation is simplified, the carbon footprint is reduced, and the cost per kilowatt hour of the photovoltaic assembly is reduced.

The invention discloses an integral mechanical sealing device for a pump. The integral mechanical sealing device comprises a spring base, a spring located in the spring base, a movable ring base with one end clamped with the spring base, a movable ring which is clamped with the other end of the movable ring base and rotates at the same speed of a pump shaft, and a fixed ring assembly which is fixed relative to a motor base, wherein the spring base, the spring, the movable ring base, the movable ring and the fixed ring assembly are sequentially sleeved along the pump shaft in a direction from an impeller to the motor base. The movable ring base comprises a first body which is respectively clamped with the spring base and the movable ring, and a second body abutted against the spring. A sealing ring is arranged between the second body and the movable ring; the cross section, which passes through an axial lead of the pump shaft, of the sealing ring is a vertical 8-shaped; and the sealingring is integrally structured. By utilizing the technical scheme, compared with the prior art, the integral mechanical sealing device for the pump provided by the invention has the following advantages: 1, the integral mechanical sealing device is wide in application range, simple in assembly, easy to install and replace, and convenient in maintenance; and 2, the integral 8-shaped ring is mountedin a sealing chamber to seal, so that the possibility of sealing leakage is greatly reduced.

The invention relates to a parking brake unit and an electromechanical brake clamp, and the parking brake unit comprises a cylinder assembly which is internally provided with a cavity with a hole; an energy storage assembly which is located in the cavity and comprises a disc spring cylinder body fixed to the cylinder assembly; a disc spring sleeve sleeved in the disc spring cylinder body; a disc spring assembly I located in the disc spring sleeve; a guide piece positioned in the disc spring assembly I and fixedly arranged at the end part of the disc spring cylinder body; a supporting piece located in the cavity and arranged with the disc spring sleeve in a spaced mode; a disc spring assembly II located in the cavity and arranged between the supporting piece and the cylinder body assembly; a wedge-shaped piece, wherein one end, close to the bearing slope, of the wedge-shaped piece is connected with the disc spring sleeve, and the other end penetrates through the disc spring assembly II to be connected with the supporting piece; a thrust output control unit connected with the disc spring cylinder body; and a locking assembly located between the disc spring cylinder body and the disc spring sleeve. The parking brake unit is compact in structure, high in energy storage efficiency, small in axial size and light in weight, and energy is generated by elastic potential energy of the disc spring set.

The invention belongs to the technical field of mold processing and design, and discloses a mold assembly and an assembly method of the mold assembly, wherein the mold assembly includes a female mold assembly and a male mold assembly, and the female mold assembly includes a female mold side template and a female mold core Assemblies, the female mold side template is provided with a female mold mounting block, the female mold core assembly can be clamped on the female mold side template through the female mold mounting block, the female mold core assembly is provided with a female mold positioning block, and the male mold group The parts include the male mold side template and the male mold core assembly. The male mold side template is provided with a male mold mounting block. The male mold core assembly can be mounted on the male mold side template through the male mold mounting block. The positioning block of the male mold is provided, and the assembly method of the mold assembly uses the above mold assembly. In the present invention, through the setting of the clamping block for the female mold and the clamping block for the male mold, there is no need to assemble a wedge, so that the assembly of the mold is simpler and the positioning is more accurate.

The invention discloses a regeneration control system and a regeneration control method for an organic waste gas adsorption device. The organic waste gas adsorption device comprises a catalytic combustion device, adsorbents in the waste gas adsorption device are arranged into a plurality of regeneration areas at intervals in a layered manner, a plurality of regeneration gas distribution areas areformed in gaps among the adjacent regeneration areas and gaps among the regeneration areas on the two sides and a box body of the waste gas adsorption device, the regeneration gas distribution areas are sequentially and alternately provided with regeneration air return openings or regeneration air supply openings, the regeneration air return openings are respectively and correspondingly provided with regeneration air return valves, the regeneration air supply openings are respectively and correspondingly provided with regeneration air supply valves, the regeneration air return openings are inparallel connection with the air inlet end of the catalytic combustion device through regeneration fans, the regeneration air supply openings are in parallel connection with the air outlet end of thecatalytic combustion device through regeneration air volume adjusting valves, and heat distribution valves are further in parallel connection to an air inlet of the catalytic combustion device and thetwo ends of the regeneration air volume adjusting valves. The regeneration control method disclosed by the invention is an adsorbent regeneration control technology for the large-capacity organic waste gas adsorption device, and the adsorbent regeneration control technology has the advantages of evenness, stability, high efficiency and safety.

The invention discloses a head-wearing illuminating lamp for vehicle repair. The head-wearing illuminating lamp comprises a head cover, wherein the front of the head cover is provided with a controller; the front of the controller is connected with a lamp cap through a damping shaft; both sides of the head cover are respectively provided with a lug; the back of the head cover is provided with a chuck; the upper part of the head cover is provided with a set of lifting handles; the lower position of the front of the head cover is provided with a steel wire hood; the middle part of the steel wire hood is provided with a steel framework; the steel framework is connected with a glass shade through a set of bolts; and a spongy cushion is attached to a circular notch in the lower position of the steel wire hood. The head-wearing illuminating lamp for vehicle repair has the conventional illumination function with longer illumination duration time; and the head-wearing illuminating lamp for vehicle repair has the function of protecting the face of the operating personnel, can prevent the chassis parts from dropping off and scratching or crushing the face of the operating personnel, and can also effectively prevent the chassis oil stains from dripping on the eyes of the operating personnel, thereby providing favorable protection for the operating personnel.

The invention provides a centrifugal separation rotary drum machine. The centrifugal separation drum machine comprises an upper rotary drum, a lower rotary drum, a residue discharging stopping ring, alocating ring, a driving shaft and a rotary residue scraping system; the bottom of the upper rotary drum is connected with the locating ring, and the residue discharging stopping ring is installed atthe bottom of the upper rotary drum through a stopping opening of the locating ring; an inner ring of the locating ring is slidably connected with the lower rotary drum in the axial direction, the top of the lower rotary drum is in contact with the bottom of the upper rotary drum, and an outer ring of the lower rotary drum is in line seal cooperation with an inner ring of the residue dischargingstopping ring; a residue discharging opening is formed in the locating ring, and is in interdicted communication with several separation chambers through line seal; one end of the driving shaft is connected with a feeding distribution disc, and a sliding adjusting mechanism is installed outside an input shaft sleeve of the lower rotary drum; the rotary residue scraping system is installed on the base. By means of the centrifugal separation rotary drum machine, maintenance of the synchronous rotation speed of a separation medium and the rotary drums can be guaranteed, the medium is relatively static, disturbance cannot be generated, the separation state is identical to that of an experiment centrifugal machine, and the flow of solid-phase discharged residues can be randomly adjusted.

The invention discloses a motor vehicle license plate reflective film pre-printing machine, which comprises a frame, on which a feeding roller and a receiving roller cooperating with each other are arranged, and an active feeding roller and a driven feeding roller are also arranged; An ink roller printing device, a first drying device, an ink scraping device and a second drying device are sequentially arranged between the discharging roller and the receiving roller. dry, which can reduce the fluidity of the ink layer, prevent the ink from rapidly forming aggregated oil droplets, affect the surface smoothness, and avoid the adhesion between the ink layer and the guide roller; on the other hand, due to the non-roll printing layer of the reflective film When heated, the fluidity of the ink in the inner layer will be less than that of the ink in the surface layer, which is convenient for scraping off the ink in the surface layer without affecting the integrity of the ink in the bottom layer, and improves the product quality; meanwhile, the present invention is used for the reflective film through the second drying device. The drying treatment is carried out, and the production of the reflective film is completed on one device, which improves the production efficiency.