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 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 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 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 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 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 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.

In a microgrid or an isolated grid, in order to keep the system voltage and frequency stable, a power supply using a droop control strategy is required as the main power supply, which puts high demands on the capacity and regulation ability of the main power supply, which is often difficult to achieve due to economic constraints ideal situation. The present invention proposes a generalized droop control method. The droop control strategy is implemented at the grid coordination control layer to replace the original droop control strategy implemented on the main power supply. All power sources participating in the generalized droop control in the microgrid or isolated grid are divided into Main power supply and non-main power supply, the main power supply accepts the voltage command value issued by the coordination control layer and generates power according to the instruction, and the non-main power supply accepts the power control instruction issued by the coordination control layer and generates electricity according to the instruction. After adopting this strategy, the requirements of the microgrid or isolated grid on the main power supply can be greatly reduced, and at the same time, the coordination control layer can arrange the output according to the actual situation of each power supply in the grid, thereby optimizing the operation results of the grid.

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.