58results about How to "Wear control" patented technology

An amount of wear of a railroad vehicle wheel flange online while traveling in a curved section is directly measured. A laser rangefinder 3 is installed on an outer track side in a rounded curve section of a railroad track. When a railroad vehicle travels through the rounded curve section, the laser rangefinder 3 measures a distance to a front rim surface of a wheel on an outer track side of a wheelset in a forward direction of travel of a bogie forming a vehicle. The amount of wheel flange wear is obtained by comparing this measured distance with a previous measurement of the measured distance. It is then possible to control the amount of wheel flange wear when traveling in a curved section, thus making it possible to quickly find wheels having flange wear that has exceeded a control range and ensure safety during travel of the railroad vehicle.

The invention relates to a chisel holder for a cutting machine, road milling machine, surface miner, or the like, having a chisel receptacle, which comprises an insertion opening, and having a chiselsupporting surface, wherein at least one wear protection element is arranged in an area associated with the chisel supporting surface. In order to bring about effective wear protection in such a chisel holder at low cost, it is provided that the at least one wear protection element is designed as a weld and is arranged at least in areas in at least one opening.

The invention discloses an acoustic levitation polishing machine of mechanically representing nano test samples and comprises a machine frame, a pulse power source, a holding fixture that is used for clamping a working piece to be processed, an ultrasonic energy transducer, a container that is used for storing polishing liquid, an ultrasonic reflecting end, and a tuning mechanism that is used for adjusting the distance between the ultrasonic reflecting end and the ultrasonic energy transducer. The ultrasonic energy transducer, the container and the tuning mechanism are all arranged above the machine frame, the pulse power source is connected with the ultrasonic energy transducer, the container is arranged under the ultrasonic energy transducer, the holding fixture is arranged above the container and is connected with a belt wheel actuating mechanism, and the ultrasonic reflecting end is arranged under the container, coordinated with the ultrasonic energy transducer and connected with the tuning mechanism. The invention provides an acoustic levitation polishing machine of the mechanically representing nano test samples with good applicability and well polishing effect.

The invention relates to an offshore underwater component device mooring cable. The offshore underwater component device mooring cable is characterized by being of a sheath-core composite double-layer structure, an inner core is of a eight-strand structure made of DM20 ultra-high molecular weight polyethylene, an outer layer is a fixing sheath formed by weaving wear-proof high-strength polyester fibers, the inner core is formed according to the steps of manufacturing rough yarn, manufacturing rope yarn, manufacturing strands, weaving ropes, soaking the inner core in resin, prestretching the inner core and drying the inner core, and the fixing sheath is formed according to the steps of splicing threads, twisting the threads, manufacturing strands and weaving the 32 strands around the inner core into the fixing sheath in a one-off mode through a double-layer weaving machine.

The invention belongs to the automobile brake field, in particular to an automobile brake device, which comprises a brake mechanism, a brake disc and a wheel axle, wherein the brake disc is mounted onone end of the wheel axle of the automobile; The brake mechanism is fixedly installed on the vehicle body, and the brake mechanism is matched with the brake disc; During the braking process, the contact area between the brake pads and the brake discs increases, which decreases the friction force per unit area on the friction surface between the brake pads and the brake discs, effectively controlsthe wear of the brake pads and the brake discs, and further prolongs the service life of the brake pads and the brake discs. During the braking process, two brake pads of the two brake pad mechanismsrespectively contact with two end faces of the brake disc and generate friction, so that the forces on the two end faces of the brake disc are balanced, the damage of the brake disc caused by long-term unilateral force is avoided, the brake disc replacement cycle is delayed, and the maintenance cost of the brake system of the automobile is reduced.

The invention provides a stop valve, which is provided with a valve body, a valve cover is fixedly arranged on the valve body and is internally provided with sealing filler, a valve-stem nut is arranged above the valve cover, a valve stem penetrates through the valve-stem nut, the sealing filler and the valve cover, and extends into the valve body, the lower tail end of the valve stem is connected with a valve clack, and a valve clack sealing surface of the valve clack is matched with a valve seat sealing surface in the valve body. The stop valve is characterized in that the upper end of the valve cover is fixedly connected with a valve-stem nut stopper which is provided with a circular groove, an annular protruded wall of the valve-stem nut is embedded into the circular groove, the valve-stem nut is capable of rotating, external threads of the valve stem are in screw arrangement with internal threads of the valve-stem nut, the inner wall of the valve cover is provided with a guide groove, and a locating pin, extending towards the lateral direction, of the valve stem extends into the guide groove to cause the valve stem to perform axial movement. The stop valve, disclosed by the invention, is long in service life, good in sealing performance and low in cost.

The invention relates to a cold hot stamping film production technology. A PET base film is included. A release layer, a colored layer, a vacuum aluminum coated layer and a gum layer are sequentially arranged on the PET base film from interior to exterior. The cold hot stamping film production technology sequentially includes the following steps of coating mixing of the release layer, coating of the release layer, coating mixing of the colored layer, coating of the colored layer, die pressing, vacuum aluminum coating, coating mixing of the gum layer, coating of the gum layer, slitting and quality checking. The cold hot stamping film production technology has the beneficial effects that the cold hot stamping film manufactured through the production processes of coating mixing of the release layer, coating of the release layer, coating mixing of the colored layer, coating of the colored layer, die pressing, vacuum aluminum coating, coating mixing of the gum layer, coating of the gum layer, slitting and quality checking has the beneficial effects that the stripping performance is good, the edge cutting performance is good, and definition is high; a gradually-changing effect can be perfectly shown, the layering sense is high, normal-temperature transferring can be achieved, heating is not needed, energy is saved, the production efficiency is high, and the machining cost is low; and the produced cold hot stamping film can replace a traditional technology for positioning cleaning of aluminum products, and the production qualification rate is high.

The invention belongs to the automobile brake field, in particular to an automobile brake caliper, which comprises a caliper mechanism, a brake disc and an axle, wherein the brake disc is mounted on one end of the axle of the automobile; The caliper mechanism is fixedly installed on the vehicle body, and the caliper mechanism is matched with the brake disc; During the braking process, the contactarea between the brake pads and the brake discs increases, which decreases the friction force per unit area on the friction surface between the brake pads and the brake discs, effectively controls thewear of the brake pads and the brake discs, and further prolongs the service life of the brake pads and the brake discs. During the braking process, while the brake pads are in contact with the brakediscs, the sides of the second cut-out on the equalizer block are in contact with and rub against the brake discs, so that the forces on the two end faces of the brake discs are balanced, damage to the brake discs due to long-term unilateral force is avoided, the brake disc replacement cycle is delayed, and the maintenance cost of the brake system of the automobile is reduced.

The invention discloses a fan control circuit for prolonging the service life of a direct current carbon brush motor of a fan, which comprises an alternating and direct current power supply conversion circuit of the fan, a direct current motor of the fan, a battery low-voltage protective circuit and a driving control circuit of the fan; wherein the alternating and direct current power supply conversion circuit of the fan comprises a rechargeable storage battery, a switch power voltage reduction circuit, a battery charging circuit and an alternating current/direct current (AC/DC) power supply switching circuit; and the driving control circuit of the fan comprises an air speed control circuit of the fan, a motor current control circuit of the fan and a motor voltage control circuit of the fan. The fan control circuit can prevent the motor and the battery form being harmed due to too low power voltage, can stabilize the working current of the direct current carbon brush motor of the fan at a rated working current value, simultaneously controls the voltage at the lower limit of the rated working voltage of the motor and eliminates the phenomenon that the motor does not work stably dueto the fluctuated power voltage, so that the service life of the household alternative and direct current dual purpose fan is prolonged.

This invention involves a kind spread sand machine have both siftings leads the sand function and the reduced pressure, which is composed by the rack, the sandbox, the conveyer belt and rolls brushes. The conveyer belt passes through establishment in the sandbox base, rolls brushes clings establishes underneath the sand mouth, near the sandbox cavity bottom is equipped with the reduced pressure to lead the sand grid overlay, upside establised siftings the grid overlay and the belt eccentric tappet vibration revolution axis, the reduced pressure leads on the sand grid overlay to be equipped with the small grid which, the handle and the spacing concave buckle around certain belts the unidirectional inclined shape side and the stiffener constitute, siftings on the grid overlay to be equipped with by the belt specification mesh strainer, vertically and horizontally the overlapping stiffener, the handle and the spacing saw notch, in the sandbox cavityNear base and upside on the sidewall establishes separately has the spacing to hold the block. When work, the sand falls directly in siftings on the grid overlay, after sieving filters the whereabouts, the reduced pressure to lead the sand grid overlay leads the sand on the conveyer belt obtains with the sand, withstanding compared to carries less pressures than the sands quantity, it is advantageous in raises the overall working efficiency, the construction quality and the extension conveyer belt service life, has the very strong usability.

The invention discloses a Y-type sealing ring. The Y-type sealing ring comprises an annular body, wherein a Y-type sealing structure is arranged on one side, communicated with high-pressure oil, of the annular body; an abrasion-proof ring structure is additionally arranged on one end, not communicated with the high-pressure oil, of the annular body; and the abrasion-proof ring and the annular body are molded into a whole through a vulcanizing gluing process. The invention discloses the Y-type sealing ring, the Y-type sealing ring is unique in structural design, the abrasion-proof ring structure is additionally arranged on the annular body, and due to the structure, the abrasion resistance of the sealing ring is effectively improved and the service life of the sealing ring is improved; and meanwhile, due to the structure, an upper oil trapping area and a lower trapping area are formed by the sealing ring during a working process, so that abrasion losses of an upper lip and the lower lip of the sealing ring are effectively controlled, and the sealing performance is more excellent and the working state is more stable.

The invention discloses a high-strength and high-toughness two skew-roll piercing method for a 2219 aluminum alloy pipe, and relates to the technical field of aluminum alloy pipe machining. The methodcomprises the following steps that skew-roll piercing is conducted by adopting a perforating machine with a double-spiral conical roller; the plug advance is set to be 5-25 mm, the feeding angle of the two skew-roll perforating machine is set to be 6-21 degrees, the rolling angle is set to be 8-15 degrees, the reduction rate is set to be 5%-10%, the rotating speed of the roller is set to be 20-35r/min, and a aluminum alloy cylindrical blank is heated to 440-460 DEG C by adopting a heating furnace; the heated aluminum alloy cylindrical blank is moved to a guide chute of the two skew-roll perforating machine from the heating furnace; and the aluminum alloy cylindrical blank penetrates through a plug under the action of the roller, and the temperature of a rod blank is controlled to be 350-500 DEG C in a rolling process. According to the high-strength and high-toughness two skew-roll piercing method, three-dimensional pressing-twisting composite deformation of the aluminum alloy in thetwo-roller skew-roll piercing process is achieved, and finally the high-strength and high-toughness 2219 aluminum alloy pipe is obtained through the two-roller skew-roll piercing method.

The invention discloses a crankshaft rocker type speed reducer. An input shaft and an output shaft are supported on a box body through bearings; the input shaft is a crankshaft; one to three groups of bell cranks are arranged on the crankshaft along the axial direction; the number of each group of bell cranks is two; an alternate angle between the two bell cranks is 180 degrees in the same group; the first bell crank is connected with one end of a first rocker through a first connecting rod in the same group, and the other end of the first bell crank is sleeved on the output shaft through an isolator; the second bell crank is connected with one end of a second rocker through a second connecting rod in the same group, and the outer end of the second rocker is also sleeved on the output shaft through an isolator. The invention not only adopts a linear bearing movement mode with high precision at a high-speed end to effectively control the transmission noise, the abrasion, and the like of the crankshaft rocker type speed reducer, but also adopts the isolator capable of bearing the high pulling torque at a low-speed end to improve the transmission efficiency. Because the volume of the whole device is reduced by adopting the crankshaft, the connecting rods, the rocker, the isolators and other structural modes, the production cost is also reduced.

The invention relates to a production process for a positioning stamping film comprising a PET base film; the PET base film is successively provided with a release layer, a coloring layer, a vacuum aluminum plating layer and a back glue layer from inside to outside. The production process comprises the following steps successively: mixing of a release layer coating, coating of a release layer, mixing of a coloring layer coating, coating of a coloring layer, mold pressing, vacuum aluminizing, aluminum washing, zinc sulfide coating, mixing of a back glue layer coating, back glue layer coating, slitting, and quality inspection. The production process has the advantages that the positioning stamping film produced by the steps has the advantages of high technical content and strong secrecy, isnon-duplicated, and can give consumers direct visual observation discrimination of authenticity before purchasing in goods anti-counterfeiting aspect, the packaging is prevented from being reused by counterfeiters, and the anti-counterfeiting performance and commercial benefits are improved; the produced positioning stamping film eliminates the gradual accumulation of stamping accuracy error in astamping process, and an independent pattern stamping foil needs a positioning cursor to correct the error of holographic patterns at intervals in time.

The invention discloses a vane-type hydraulic machine. The vane-type hydraulic machine comprises an oil inlet side plate, an oil outlet side plate, a rotor, a stator and a vane which is arranged inside a rotor groove, wherein the vane and the bottom of the rotor groove form a bottom cavity, a high-pressure port and a lower-pressure port are respectively formed on the oil inlet side plate and the oil outlet side plate, a fluid passageway is arranged on the vane, the end part of the vane is provided with a vane top groove which is communicated with the fluid passageway, the top of the vane and the contact line of the inner surface of the stator are respectively arranged on the two sides of the vane top groove, fluid channels corresponding to the fluid passageway are respectively arranged on the oil outlet side plate and the oil inlet side plate, and the fluid passageway, the vane top groove and the fluid channel form a vane control chamber. The vane-type hydraulic machine is simple and convenient to machine and has low cost; the accuracy of the vane-type hydraulic machine is ensured; the reliable contact between the vane and the inner surface of the stator is ensured; the abrasion is also controlled; the working pressure is increased; the product performance is improved; and the service life is prolonged.

The present invention discloses a sanding pressure control regulator which is arranged in a sanding air passage and comprises an air passage plate, a blocking cock and a pressure regulator The air passage plate has a main air inlet and a main air outlet and is connected to the sanding air passage through the main air inlet and the main air outlet. A plurality of airways are provided inside the air passage plat. The blocking cock is fixed on the air passage plate and can be opened and closed for conducting or blocking compressed air in the air passage. The pressure regulator is fixed on the air passage plate and can adjust the pressure of the compressed air in the air passage to allow the pressure of the compressed air flowing through the pressure regulator to accord with the requirement of the sanding process. The blocking cock and the pressure regulator are connected in series through the air passage. With double functions of adjusting the pressure of the compressed air and controlling and blocking the compressed air, the sanding pressure control regulator of the present invention is applicable to blocking and adjusting the sanding pipeline pressure of locomotives of various types and enables to protect a sanding valve of the locomotives and to prolong the service life of the locomotives.

A structure for decreasing load of vortex-type compressor is composed of rolling piston, primary bearing and secondary bearing, and features that a recess is made on at least surface of them to decrease the contact area, so reducing friction and load.

The invention relates to a flue gas recirculating system for low-nitrogen combustion and slag-bonding prevention of a W-flame boiler. The flue gas recycling system comprises a boiler smoke exhaustingopening, a cyclone dust collector and a recirculating flue gas distributor, the boiler smoke exhausting opening communicates with a gas inlet of the cyclone dust collector, the cyclone dust collectoris connected with a recirculating fan through a boiler smoke pipeline, the recirculating fan is connected with the recirculating flue gas distributor, the recirculating flue gas distributor comprisesan inner annular channel and an outer annular channel, the inner annular channel is formed in the outer annular channel, a plurality of hydrocyclones are arranged on the outer annular channel, and anelectric regulating valve is arranged on the inner annular channel. High-temperature flue gas of the system is taken from the lower part of an economizer at the tail of the boiler, the temperature is10 DEG C-20 DEG C higher than the temperature of hot primary air and hot secondary air at an outlet of an air preheater, the flue gas is introduced into an under-arch area of a hearth of the boiler, the amount of the flue gas in the boiler can be increased, the main steam temperature and the reheat steam temperature are increased, the NOx generation amount is controlled, slag-bonding of a water-cooling wall of the under-arch area of the boiler is prevented, and the flue gas recirculating rate is controlled at 10%-20%.