51results about How to "Reduce the difficulty of starting" patented technology

The invention relates to a pull rope electronic parking brake transmission system. The mechanism consists of a motor, a speed reducing mechanism and a transmission mechanism, wherein the transmission mechanism comprises a shell; an end cover is fixed with the shell through a connecting screw and a spring washer; a screw is connected with an internal spline at the output end of the speed reducing mechanism through an internal spline at an outer end, is respectively supported on a shell hole and an end cover hole through a sliding bearing I and a sliding bearing II, and is axially positioned by a thrust roller bearing and a clamping spring; the screw is in transmission fit with a square nut through threads; a cylindrical boss on the square nut is matched with middle holes of balance arms; the two balance arms are connected through two connecting pin shafts; two pull wire clips are connected with the connecting pin shafts through hole shaft fit; and the end cover is provided with pull wire adjusting nuts which correspond to the pull wire clips and are matched through pull wires. The mechanism has the advantages that: electricity is used for replacing mechanical operation, and quicker and lighter parking brake is provided; the motor is easily controlled automatically; ramp starting difficulty is reduced, and driving convenience and driving safety are improved; and the total volume of a parking operation part is reduced, and the mechanism is convenient to install.

The invention relates to a quick start-up method for short-range nitrification and denitrification of ammonia-containing wastewater. First, the inoculum is put into a bioreactor, and the inoculum is enriched nitrifying bacteria, or a mixture of nitrifying bacteria and aerobic activated sludge of a sewage plant ; The system is started in two modes of intermittent water intake and continuous water intake; nitrifying bacteria are added during intermittent water intake, and denitrifying bacteria agents are added during continuous water intake. Compared with the prior art, the method of the invention has the advantages of less stringent start-up requirements, fast start-up speed, high-concentration ammonia-containing wastewater and the like.

The invention discloses a quick starting method for treating ammonia-containing wastewater through an A / O process. The method comprises: (1) putting inoculums in a bioreactor; and (2) adopting batch water-intaking operation and continuous water-intaking operation to start an A / O system. The bioreactor of an A / O process comprises an anoxic reactor that is an A reactor and an aerobic reactor that is an O reactor. The inoculums of the A reactor are nitrous-acid-type denitrification bacteria and anoxic activated sludge. The inoculums of the B reactor are aerobic activated sludge, and a microbial growth promotion agent is added to the O reactor at the same time. The promotion agent comprises metal salt and a polyamines substance, wherein the metal salt takes 40-100 parts by weight and comprises calcium salt, copper salt, magnesium salt and / or ferrous salt, and the polyamines substance takes 5-30 parts by weight. The difficulty of starting the A / O process is reduced, the starting time is obviously shortened, and starting cost of a sewage treatment system is decreased. The ammonia nitrogen and total nitrogen can be efficiently removed, and long-term stable operation of reactors is ensured.

The invention provides a medical electric bed device, which includes a bottom support frame, a bed board assembly and a lifting mechanism; the lifting mechanism includes a support plate, a rotating connecting rod, a lifting push rod and an intermediate support hinged in the middle of the bed board assembly; the There are two supporting plates, rotating connecting rods and lifting push rods, which are arranged symmetrically on both sides of the middle support; The bottom support frame is hinged, and the other rotating link is connected to the bottom support frame through a rotating shaft and a horizontally arranged bar hole; the support plate is fixed on the bed board assembly, and the support plate is also connected to the rotating link through a hinge plate; Both ends of the hinged plate are respectively hinged on the support plate and the rotating link; the hinged position of the lifting push rod of the rotating link is higher than the connecting position of the rotating link and the bed board assembly. The invention solves the problem of unstable lifting structure in the prior art.

The present application provides a gas discharge lamp, comprising: an arc tube, including a tube body, first and second terminal electrodes located at both ends of the tube body, and a wire arranged on the outer wall of the tube and located between the first and second terminal electrodes; The auxiliary starting module is arranged on the side of the first terminal electrode, including a conductive sheet and a photosensitive heat radiator. The conductive sheet is connected to the first terminal electrode and the wire. The conductive sheet is made of a heat-sensitive material, and the photosensitive thermal radiator is arranged adjacent to the conductive sheet. The light radiation and / or thermal radiation output by the arc tube is used to irradiate the conductive sheet, and the conductive sheet is deformed by heat to disconnect the electrical connection between the wire and the first terminal electrode. This application shortens the discharge distance through the conductive sheet, increases the start-up speed of the arc tube and reduces the difficulty of starting, and irradiates the light radiation and / or thermal radiation output by the arc tube to the conductive sheet through the light-induced heat radiator, which can prevent the conductive sheet from being connected to the wire for a long time And the early attenuation of the electrode tip of the first end electrode caused by the first end electrode, the blackening of the inside of the arc tube and other problems.

The invention discloses a motor tricycle engine decompression starting mechanism. An axial arch-shaped groove is formed in the surface of a base circle of a cam and extends to an extension section of the base circle of the cam. An arc-shaped groove corresponding to the arc-shaped groove in the extension section of the base circle of the cam is formed in an inner hole wall of a timing driven gear, a round hole is formed by enclosure of the two arc-shaped grooves, and a decompression eccentric pin is arranged in the round hole. One end of the decompression eccentric pin penetrates out of the round hole and is placed in the arc-shaped groove in the surface of the base circle of the cam, the other end of the decompression eccentric pin penetrates out of the timing driven gear and then is connected with an eccentric block, and a reset spring is arranged between the eccentric block and the timing driven gear. One section of the decompression eccentric pin, placed in the arc-shaped groove in the surface of the base circle of the cam, is provided with an eccentric portion, when the eccentric block is in a reset state, the eccentric portion protrudes out of the surface of the base circle of the cam and ejects a lower rocker arm which controls an exhaust valve to open. The motor tricycle engine decompression starting mechanism can greatly reduce engine starting difficulty, and is beneficial for popularization and market acceptability of large-discharge motor tricycles.

The invention discloses a biofilm denitrification reactor and a rapid biofilm forming method. A transverse plate a, a vertical plate b, a vertical plate c and a transverse plate d are arranged in the reactor. The reactor is transversely divided into an upper part and a lower part through the transverse plate a, wherein the lower part is a first anaerobic zone A1, the upper part is longitudinally divided into three parts through the vertical plate b and the vertical plate c, and the three parts sequentially include an aerobic zone O, a transition zone and a second anaerobic zone A2. The lower end of the vertical plate b and the transverse plate a are connected in a sealed manner. A water passing opening is reserved between the upper end of the vertical plate b and the top of the reactor. The upper end of the vertical plate c and the top of the reactor are connected in a sealed manner. A water passing opening is reserved between the lower end of the vertical plate c and the transverse plate a. The left end of the transverse plate d and the bottom of the vertical plate c are connected in a sealed manner. The right end of the transverse plate d and the wall of the reactor are connected in a sealed manner. The transition zone is filled with sponge iron deoxidant particles. When biofilm forming is conducted, water enters the reactor from the bottom, sewage is discharged from the upper portion of the reactor after sequentially passing through the anaerobic zone A1, the aerobic zone O, the transition zone and the anaerobic zone A2, biofilms in all the zones in the reactor are cultivated in a partitioned manner, the biofilms with specific performance can be better formed, the biofilm forming is rapid, and the denitrification effect is good.

The invention discloses an oil-free air compressor and relates to the technical field of air compressors. The technical scheme includes that the oil-free air compressor comprises an engine base, a gasbomb, a crankshaft assembly rotatably arranged in the engine base and a motor driving the crankshaft assembly to rotate; a plurality of air cylinders is arranged on the engine base, a plurality of connecting rods is connected onto the crankshaft assembly, each connecting rod is connected with a piston thereon, the pistons are located in the corresponding air cylinders, the crankshaft assembly includes a plurality crankshaft units, and each crankshaft unit comprises a main journal, a rod journal and a crank arm connecting the main journal with the rod journal; a plurality of driving blocks isarranged on end faces where the main journals of the neighboring crankshaft units aligning mutually, driving grooms are formed among the driving blocks, and the mutually aligned main journals are interlocked through the driving blocks and the driving grooves. By the arrangement of the crankshaft units, delay rotation of the crankshaft units is realized, the air compressor starts with less resistance, the load of motor startup is greatly reduced, and fast startup response is achieved.

The invention provides a paver startup control method and paver. The paver startup control method includes: receiving a paver startup instruction; acquiring altitude information and engine temperature information of the paver; Control the operating state of the clutch of the paver according to the working condition; control the engine start according to the operating state of the clutch, wherein the clutch is arranged between the engine and the working load, and the clutch is used to connect or disconnect the engine and the working load, so as to realize the engine Launch with or without workload. Through the technical scheme of the present invention, the operating state of the clutch can be controlled according to the working condition of the paver, so that the paver can start the engine without a working load in the plateau area or in the low temperature environment, which reduces the difficulty of starting the engine and makes the paver start up. The paver is easy to operate.

The invention discloses an unmanned aerial vehicle, an engine, a control device and a method for identifying missing teeth. The method for identifying missing teeth is applied to the control device, and the control device includes a controller; The disk is provided with teeth and missing teeth, and detection points are set in the circumferential direction of the tooth disk, sensors are installed on the detection points, and the sensors are connected to the controller. The method for identifying missing teeth includes: S1. Rotation information of the disk; S2, identifying a plurality of position information of the missing teeth according to the rotation information; S3, judging valid missing teeth and invalid missing teeth among the plurality of position information. The above missing tooth recognition method, by accurately identifying effective missing teeth and invalid missing teeth under conditions of discontinuous operation or even springback, avoids engine failure due to unidentifiable and missing teeth errors, reduces the difficulty of starting the engine, and reduces The starting inertia of the engine is improved, and the anti-interference ability of the engine is improved.

The invention discloses a quick starting method of waste water treatment system short-cut nitrification denitrification. The quick starting method comprises following steps: (1) firstly, a bioreactor is inoculated with aerobic activated sludge from wastewater treatment plants; (2) batch water injection is adopted, and then continuous water injection is adopted for system starting; and (3) denitriding microbial preparations are added at different ratio for different water injection modes, wherein the denitriding microbial preparations are mainly composed of Arthrobacter creatinolyticus FDN-1, Flavobacterium mizutaii FDN-2, Paracoccus denitrificans DN-3, and Methylobacterium phyllosphaerae SDN-3, volume ratio of the microbial preparations added in batch water injection is 1:2:(8-15):(8-15), and volume ratio of the microbial preparations added in continuous water injection is (8-15):(8-15):2:1. The quick starting method is capable of reducing starting difficulty of short-cut nitrification greatly and shortening start time obviously, ensuring long-term stable operation of reactors, achieving high waste water treatment efficiency, and realizing simultaneous removing of ammonia nitrogen, total nitrogen, and COD.

The invention relates to a transmission method based on belt conveying. The transmission method includes the following steps: S1, start the motor, the motor drives the drive shaft to rotate, and the drive shaft drives the first fixed disk and the centrifugal chute to rotate; S2, the motor is close to zero load Start, as the motor speed increases, the first ball receives more and more centrifugal force, and the first ball starts to move away from the axis of the drive shaft; S3, the left side of the centrifugal chute and the V-shaped belt The right side contacts and gradually squeezes the V-shaped belt, the upper end of the V-shaped belt moves upwards and starts to be tensioned and rotated; S4, the transmission wheel drives the limit sleeve to rotate through the second ball, and the limit sleeve and the second fixed plate drive The driven shaft rotates, and the driven shaft drives the belt conveyor to run.