77results about How to "Reduce impact wear" patented technology

The invention relates to an unloading trolley with a material separation device, and belongs to the technical field of bulk material unloading devices. The unloading trolley is characterized in that: a belt conveyor is arranged below a funnel outlet along the front and back directions; and the horizontal distance between an unloading point of the belt conveyor and the funnel outlet can be adjusted, so that the integral height of equipment is not required to be increased. The unloading trolley has a flexible unloading mode and can be used for unloading in multiple directions according to requirements; the unloading trolley has a compact structure, so that the mounting space of the equipment is saved; a long chute is not used for transferring materials, so that the phenomena of material collection and material blocking are difficult to generate; the height of the equipment is effectively controlled, so that unloading height level differences are reduced, dust emission in the process of transferring the materials is reduced, and a good dust removal environment-friendly effect can be achieved by matching dust removal equipment; and a steel structural piece in the equipment is simplified and reduced, so that the unloading trolley is convenient to mount, is easy to debug, operate and maintain and has a good economic benefit. The unloading trolley is particularly suitable for working places with small plant space and higher environmental quality requirements.

The invention provides a pure electric vehicle starting anti-shake control method. The method comprises the steps that step 1, a high-voltage relay state, motor working mode information and current vehicle actuation information are collected by a vehicle control unit (VCU); step 2, the current vehicle state is judged through the vehicle control unit (VCU) according to the collected high-voltage relay state; step 3, the driving state of a motor system is judged through the vehicle control unit (VCU) according to the collected motor working mode information; step 4, the vehicle control unit (VCU) initiates a corresponding request torque T to the motor system according to the current vehicle state, the driving state of the motor system and the collected current vehicle actuation information;and step 5, the motor system directly executes the request torque T after receiving the request torque T, and the matching condition of gears is controlled by outputting the corresponding torque through the motor system. Through the method, the effect that the gear matching process of a transmission system is smooth is ensured, and impact in the starting process is reduced.

The invention provides a supporting device and a portable ultrasonic impact gun provided with the same. The supporting device is provided with a ball screw mechanism and a sliding seat driven by the ball screw mechanism to slide. A guide rod front bracket and a guide rod rear bracket are fixed to the sliding seat. A pair of guide rods is connected between the lower portion of the guide rod front bracket and the guide rod rear bracket. The two guide rods both support an adjusting seat. A supporting seat is fixed to the adjusting seat. A front-back locating hole matched with the corresponding position of a gun body is formed in the supporting seat. A pair of buffer springs is arranged between the upper portion of the guide rod front bracket and the supporting seat. The front ends of the two buffer springs are inserted into corresponding adjusting holes in the guide rod front bracket correspondingly. A fine adjustment bolt used for pushing the corresponding buffer spring is arranged in each adjusting hole. According to the portable ultrasonic impact gun, the middle portion of the gun body is arranged in the locating hole of the supporting seat to be fixed; impact abrasion between the gun body and the supporting seat can be reduced through rubber rings or rubber gaskets; reciprocating impact vibration can be effectively buffered through the buffer springs; and accordingly, the operational stability is improved.

The invention belongs to the technical field of engine turbochargers, and relates to a shell structure of a turbine shell. The shell structure comprises the turbine shell; an outlet of the turbine shell is in sealed connection with a transition joint, and a transition joint cavity is formed between the transition joint and the turbine shell; a first turbine shell flue-gas bypass channel is formedin the upper part in the turbine shell, the gas inlet end of the first turbine shell flue-gas bypass channel communicates with a first turbine shell gas-inlet flowing channel formed in the bottom of the turbine shell, and the gas outlet end of the first turbine shell flue-gas bypass channel communicates with the transition joint cavity; and the turbine shell is internally provided with a flue-gasbypass valve for controlling opening and closing of the first turbine shell flue-gas bypass channel, and the bottom of the turbine shell is further provided with a second turbine shell gas-inlet flowing channel. According to the shell structure of the turbine shell, by adjusting the structures of the transition joint and the turbine shell, selecting and switching of the two structures are achieved, so that the overall combustion efficiency of an engine is improved, fuel economy is improved accordingly, and meanwhile, the risks of an excessive high supercharging pressure and an excessive high rotating speed of a supercharger are reduced.

The invention provides a Christmas tree wellhead device. The device comprises a pressure reducing tank, five pressure reducing tank oil outlets are formed in an upper end plate of the pressure reducing tank and correspondingly connected with five six-way oil inlets in a six-way joint through five flow dividing pipes, six-way oil outlets in the six-way joint are connected to connecting pipes used for being connected with a Christmas tree, and an oil inlet is formed in a lower end plate of the pressure reducing tank; and a filtering device and a buffering protruding head are arranged in the pressure reducing box, the filtering device divides the inner space of the pressure reducing box into an upper space and a lower space, the buffering protruding head is fixed in the pressure reducing box, and the protruding portion of the buffering protruding head is located over the oil inlet. According to the Christmas tree wellhead device, high-pressure fluid can be borne, a buffering protruding head module in the pressure reducing box can reduce impact abrasion of the high-speed fluid to the wellhead device, the flow dividing pipes can divide the high-speed fluid, the flow speed of the fluid is reduced, and then the fluid enters the upper end of the Christmas tree, so that the safety of the Christmas tree wellhead device is effectively guaranteed.

The invention relates to a sand making machine which comprises a crushing cavity assembly, wherein the crushing cavity assembly comprises a housing provided with a crushing cavity; a discharge port communicated with the crushing cavity is formed in the housing; a blocking adjusting plate for adjusting the size of the discharge port is movably assembled at the discharge port in the housing; and a locking structure for locking the blocking adjusting plate after the blocking adjusting plate is adjusted in place is arranged between the blocking adjusting plate and the housing. According to the sand making machine, the blocking adjusting plate is movably assembled at the discharge port in the housing, the size of the discharge port is adjusted through adjusting the position of the blocking adjusting plate during use, and after the adjustment is finished, the blocking adjusting plate is locked by the locking structure. In this way, the size of the discharge port can be adjusted according to the practical discharge requirements, so as to meet the discharge requirements on different sand making speeds.

An eyeglasses clasp for maintaining eyeglasses on a clothing material. The clasp comprises at least one magnetic means engaged with the eyeglasses temple bars that align with each other but not with the eyeglasses frame body midpoint when the temple bars are closed. The magnets are in attractive magnetic communication when the temple bars are closed. The clasp is used by pivoting one of the temple bars into the closed position. The frame body and closed temple bar are then positioned on one side of a clothing material. The second temple bar is then pivoted into the closed position such that it is on the other side of the clothing material. With the temple bars closed, the magnets are in attractive magnetic communication and impart a gripping force on the article of clothing. The gripping force substantially prevents relative movement between the temple bars and the clothing material.

The invention discloses a rotary atomizer system, and belongs to the technical field of atomizers. The system comprises a feed liquid distributor, a rotary atomizing wheel and a rotary main shaft, wherein the discharge pipe of the feed liquid distributor corresponds to the atomizing wheel inlet of the rotary atomizing wheel, and second guiding blades are uniformly arranged in the circumferential direction of the inner wall of the discharge pipe at intervals; a nozzle is arranged at the atomizing wheel outlet of the rotary atomizing wheel, an inlet hole is formed in the inner circle inlet section of the nozzle, and the inlet hole is an eccentric variable-diameter hole. The invention aims at overcoming the defects of severe abrasion and nonuniform distribution of feed liquid of atomizers inthe prior art, and provides the rotary atomizer system; the system can ensure that the feed liquid enters the discharge pipe and the atomizing wheel with uniform distribution, so that the feed liquidis atomized uniformly, the nozzle is not easily blocked, and the service life of the atomizer is prolonged.

The invention provides a deflation device for anti-falling protective clothing. The deflation device comprises a gas cylinder filled with compressed gas and has the structural characteristics that thegas cylinder is arranged in a gas cylinder container, and an opening in the top of the gas cylinder is sealed by a sealing material capable of being pierced; a hollow pricker which is fixed at the top end of the gas cylinder container and has an internal gas guide through hole is suspended and aligned to the opening, the upper end of the hollow pricker is connected with a gas guide pipe through anon-return valve, and the gas guide pipe is connected with an anti-falling protective gas bag; and a gas cylinder pushing mechanism is arranged at the bottom of the gas cylinder container, and the gas cylinder pushing mechanism can push the gas cylinder to be quickly bounced upwards when falling danger exists to enable the hollow pricker to pierce the sealing material for sealing the opening of the gas cylinder, thereby inflating the anti-falling protective gas bag through the hollow pricker and the gas guide pipe. The deflation device is short in deflation reaction time, good in anti-fallingeffect when being used for the anti-falling protective clothing, small in overall volume, light in weight and simple in structure.

The invention provides a cargo tank tail gate sealing mechanism. The cargo tank tail gate sealing mechanism comprises a cargo tank body, a cargo tank tail gate and a sealing strip; and the top end ofthe cargo tank tail gate is hinged to the cargo tank body, the sealing strip is arranged at the contact part of the cargo tank body and the cargo tank tail gate, one of the cargo tank body and the cargo tank tail gate is provided with a first magnetic body, the other of the cargo tank body and the cargo tank tail gate is provided with a second magnetic body, the first magnetic body and the secondmagnetic body are arranged on the opposite faces of the cargo tank body and the cargo tank tail gate correspondingly, and the first magnetic body and the second magnetic body are mutually exclusive. According to the cargo tank tail gate sealing mechanism, the first magnetic body and the second magnetic body are mutually exclusive and are used for preventing opposite motion between the cargo tank body and the cargo tank tail gate, accordingly, impact abrasion to the sealing strip when the cargo tank tail gate is closed can be reduced, the service life of the sealing strip is prolonged, and thesealing effect of a cargo tank is effectively improved. On the other hand, the invention provides a dumper provided with the cargo tank tail gate sealing mechanism.

The invention relates to a lifting type charging device, a charging pile and a lifting type charging device motion control method. During charging, a power source drives a charging frame to drive a charging positive electrode, a charging negative electrode and a charging grounding electrode to descend through a lifting mechanism, and the power source is a servo motor or comprises the servo motor. When the charging grounding electrode is in contact communication with the corresponding electrode on the electric vehicle before the charging positive electrode and the charging negative electrode, the servo motor decelerates to reduce the falling speed of the charging frame until the charging frame falls to a charging position. When the charging frame is located at the charging position, the charging positive electrode, the charging negative electrode and the charging grounding electrode on the charging frame are all in contact communication with corresponding electrodes on the electric vehicle to achieve normal charging. Impact force generated when the subsequent charging positive electrode and charging negative electrode make contact with corresponding electrodes on the electric vehicle is effectively reduced, extra impact abrasion is reduced, and the service life of the charging positive electrode and the charging negative electrode is prolonged.

The invention discloses a fertilization device for greenhouse cultivation. The fertilization device comprises a working platform, a No.1 fertilizer box, a mixing box, a No.2 fertilizer box and a blanking box, wherein the No.1 fertilizer box, the mixing box and the No.2 fertilizer box are separately installed on the upper surface of the working platform, two blanking slant plates are arranged at the upper part of an inner cavity of the mixing box, four corners of the lower surface of the working platform are fixedly connected with the upper surface of a support base through damping devices, traveling wheels are fixedly installed on the lower surface of the support base, a blanking support plate is fixedly installed on the support base through a height-regulating device, and the upper part of the blanking box is communicated with the lower inner cavity of the mixing box through an elastic hose. The fertilization device has a simple structure, has a good damping effect, mixes different fertilizers according to a proportion, has a good mixing effect, can regulate the horizontal height of a blanking opening so as to adapt to different road conditions, and has high practicability.

The invention relates to a fiber curtain smoke and spark insulating device for a bag type dust collector, and belongs to the technical field of environment-protecting dust removing plants. The fiber curtain smoke and spark insulating device comprises one or more fiber curtain units mounted in a fiber curtain frame, wherein each of the fiber curtain units comprises a plurality of fiber filaments which are vertically arranged in parallel and capable of quivering; the fiber filaments are arranged to form one or more layered fiber curtains. The fiber curtain smoke and spark insulating device disclosed by the invention can avoid loss caused by filter bag burning due to sparks in the smoke and the broken filter bag due to impact abrasion of coarse particulate matters in the smoke, and emission of pollutants.

The invention belongs to the technical field of oil field drilling equipment, and particularly relates to a directional double-tooth self-balancing PDC drill bit suitable for soft and hard interlayers. The drill bit comprises a drill bit body, blades and nozzles, and the blades and the nozzles are arranged on the drill bit body; and the number of the blades is five, double-tooth structures, front-row single teeth, rear-row conical teeth and gauge teeth are distributed on the blades, and the rear-row conical teeth are distributed behind the front-row single teeth on the same rail. The nozzles are distributed in the straight line area and the arc area of the crown part of each blade; the crown part of each blade is a straight line-arc crown part, and the cone depth of each crown part is moderate; and the lower part of the drill bit body is a male joint, the lower end is provided with a thread line, and a groove is turned in the middle part and facilitates screwing on a well. Single-tooth impact abrasion is reduced, and the rock breaking efficiency is improved.

Disclosed are a method of flying on the moon and a device for flying using the method. A medium on a surface of a moon and a medium accelerating module are used in the flying method. The medium is transferred into the medium accelerating module, accelerated by the medium accelerating module, and ejected out of the medium accelerating module by using a power supply. A counterforce is generated in accordance with the momentum conservation, and the counterforce overcomes the lunar gravity and drives a load to take off. The method is suitable for the environment of the moon where flight by means of atmospheric buoyancy is impossible due to the shortage of atmosphere.

The invention relates to a novel Co<2> throttle frost valve comprising a valve body, a valve cylinder, a valve core and a friction heating system. The valve cylinder is disposed in the valve body; the valve core is disposed in the valve cylinder; a plurality stages of valve cylinder components are arranged on the inner wall of the valve cylinder; the outer wall of the valve core is provided with a plurality stages of valve core components one-to-one corresponding to the plurality stages of valve cylinder components; the friction heating system is formed by a hohlraum accommodating heat conducting medium and a plurality sets of friction devices; the hohlraum is placed between the valve body and the valve cylinder; the plurality of friction devices are behind each cooperation part between each stage valve cylinder component and each stage valve core component; and the friction devices are connected with the valve cylinder. With the friction heating system, fluid after throttling can be heated, so temperature of the fluid after the throttling can be maintained and damage to the valve body and pipelines behind the valve can be prevented; cavitation can be reduced and eliminated; impact wear of valve internal components by Co<2> can be reduced; and service life of a throttle valve can be prolonged.

Disclosed are a device and a method for pressure-molding an anti-overheating CSP fluorescent membrane. The device comprises a frame, a mould pressing device, a force measuring device, a control device and a feeding device; and the mould pressing device comprises an upper pressing mould, an upper clamp, a lower pressing mould, a guide post, an elastic supporting structure, and a lower clamp. As the stage of pressing the elastic supporting structure is added to the course of pressure molding, a mould clamping force of the pressure molding increases in a relatively steady way, and a force impact of a mould clamping device is reduced, thereby easily determining an initial point for maintain temperature of the pressure molding. The present invention effectively prevents overheating caused by long-term and large-area contact between the lower clamp and the heating lower pressing mould, and avoids the process defect of premature melting of the fluorescent membrane due to overheating, thereby greatly improving the product consistency and yield rate of the CSP-package fluorescent membrane in the pressure molding process.

The invention belongs to the field of mahjong machine tile rising mechanisms, and relates to a cam type mahjong machine tile rising and pushing mechanism. The cam type mahjong machine tile rising andpushing mechanism solves the technical problems of complicated structure and unstable motions of a tile rising mechanism in the prior art, and comprises a tile rising plate hinged to a mahjong machine, wherein an incomplete gear is arranged under the tile rising plate, an upwardly protruding cam is coaxially arranged on the incomplete gear, the tile rising plate is provided with a follower connected with the cam, and the cam and the incomplete gear are provided with a cam transmission structure. Compared with the prior art, the cam type mahjong machine tile rising and pushing mechanism has theadvantages that the structure is simple, the supporting stability is good, a motor drives the tile rising and pushing mechanism, and the operation error rate is greatly reduced.

The invention relates to the technical field of lithium battery production, in particular to a lithium battery separator drying production line. The lithium battery separator drying production line involves a rack, a first-layer drying channel, a second-layer drying channel, a top storage area, a bearing mechanism, a driving motor, a drying mechanism and an opening and closing bin door, the lithium battery separator drying production line is formed by the mode that the rack is matched with the first-layer drying channel, the second-layer drying channel and the top storage area in combination with one another, wherein the first-layer drying channel and the second-layer drying channel are main drying chambers, and a conveying device provides conveying capability for the first-layer drying channel, the second-layer drying channel and the top storage area. According to the lithium battery separator drying production line, the purpose of rapidly and uniformly drying a separator roll is achieved, uninterrupted drying operation can be carried out on a separator, and therefore, the drying efficiency of the lithium battery separator is greatly improved, the site is saved, the arrangement ofthe top storage area is matched at the same time, a product can be naturally cooled while the product is stored, and the functionality of the whole device is improved.

The utility model discloses a high-rise drainage bend tube which comprises a water inlet section, a bend section and a water outlet section, the water inlet section is detachably connected with the bend section, the water inlet section comprises an energy dissipation tube and a filtering tube which are detachably connected, the energy dissipation tube comprises a first tube body and a plurality ofenergy dissipaters connected to the inner tube wall of the first tube body, and the filtering tube comprises a second tube body, a filtering box connected to the inner tube wall of the second tube body and a conical filtering net arranged in the filtering box. The pipeline is designed to reduce energy of the pipeline before water flow and sundries with huge potential energy impact the bend tube,impact damage to the bend tube is effectively reduced, and the pipeline is easy to replace and maintain, simple, practical and easy to implement.

The invention discloses a side type powder feeding top blowing furnace and a treatment method thereof. The side type powder feeding top blowing furnace comprises a cylindrical furnace body, powdery material feeding nozzles, a furnace top sample rod, a top blowing furnace spray gun, a belt conveying feeding port, a flow dividing conveying pipe, a quantitative pneumatic conveying device, a powdery material collecting bin, powdery material collecting bin feeding ports and a furnace top cover. The powdery material feeding nozzles are symmetrically arranged on the periphery of the furnace wall of the cylindrical furnace body and located on the same horizontal plane, each powdery material feeding nozzle and the furnace wall form an angle of 45 degrees, and the centers of the nozzles directly face the center line of the furnace bottom. The problems that in the tin smelting process, when powdery tin materials are smelted, the transportation flying loss is large, the material returning quantity is large, the operation environment is poor, and the body health of operators is harmed can be solved.

Disclosed is a construction waste wind separation device. The construction waste wind separation device mainly consists of an air flow circulation system, a feeding and guiding device and a collectingand conveying device. The air flow circulation system includes a blower, a wind supply pipe assembly, a wind return pipe and a dust removal device. The wind supply pipe assembly is internally provided with a wind volume regulating valve, a wind speed regulating valve and an outlet wind direction regulating screw. The feeding and guiding device comprises a feeding belt conveyor, a guiding plate, asmall screw, a roller and a guiding box. The collecting and conveying device comprises a collecting box, a belt conveyor, a wind return branch pipe and a conical pipe. By adopting a wind volume, windspeed and wind direction regulating technology, lightweight waste in construction waste can be effectively separated, impact wear to the roller and the like is reduced, the adaptability to the construction waste is improved effectively, and by arranging the dust removal device, the collecting box and a closed circulation wind pipe, dust pollution is avoided, and the separation efficiency is improved. The construction waste wind separation device is simple in structure, reliable in using, good in separation effect on lightweight waste, high in separation efficiency and wide in practicability.