44results about How to "Reduce motion friction" patented technology

The invention provides electric power supply equipment provided with roller grooves and capable of damping. The electric power supply equipment comprises a pin type insertion device (3) and a base hole type fixing device. The pin type insertion device (3) comprises a body part (30) and two pin type plugs (31) which are symmetrically arranged relative to a central axis of the body part (30). An upper part of each of the two pin type plugs (31) is provided with a guiding horizontal part (33) which is used for slidably cooperating with a corresponding one of two slide grooves (32) in the body part (30) and bearing a force load in an up-and-down direction. The base hole type fixing device comprises a pedestal (1) and two mounting racks (4) which are symmetrically arranged relative to the central axis and which are fixed on the pedestal (1). Each mounting rack (4) is internally provided with a slot (40) in which a corresponding one of the two pin type plugs (31) is inserted.

The invention discloses a three-sleeve elastic self-sealing safety valve. The three-sleeve elastic self-sealing safety valve comprises a bonnet, a valve body, a valve seat, a valve flap, a guiding cylinder, a sleeve, a lower cooling fin, an upper cooling fin and a valve rod; an anti-blowing sleeve positioned above the lower cooling fin is arranged on the valve rod; an annular groove is arranged on the lower end surface of the anti-blowing sleeve; a retainer ring capable of extending into the groove in a matched manner is arranged on the upper surface of the lower cooling fin; a sealing cylinder capable of extending into the inner ring of the lower cooling fin is arranged on the inner side of the lower end surface of the anti-blowing sleeve; a limit sleeve positioned under the lower cooling fin and a lock sleeve matched with the upper surface of the valve flap in a compression joint manner are arranged on the valve rod; a conical block which has a small lower part and a large upper part is arranged in the center of the lower surface of the valve flap; an annular pressure bearing slot is formed in the lower surface of the valve flap; an elastic sealing ring positioned on the outer side of the pressure bearing slot is arranged on the lower surface of the valve flap. The three-sleeve elastic self-sealing safety valve has the advantages that the design is reasonable, the sealing performance is high, the lifting guiding and vertical stability are high, the adjustment sensitivity is high, the performance and stability of opening, setting and return actions of the valve are good, and the valve is particularly applicable to harsh working conditions such as high temperature and high pressure conditions.

The invention relates to the technical field of switching valves used for pneumatic conveying systems, and in particular discloses a single-disk valve which is sealed reversely. The inlet valve body of the single-disk valve is in a cylindrical structure of which the upper end and the lower end are provided with flange disks; a valve rod hole is formed in the flange disk at the lower end of the inlet valve body; the outlet valve body of the single-disk valve is in a funnel-shaped structure of which the upper end and the lower end are provided with flange disks; the flange disk at the upper endof the outlet valve body is matched with the flange disk at the lower end of the inlet valve body; a valve disk is in an inverted conical disk structure of which the edge is a sharp edge; and a valverod assembly passes through the valve rod hole of the inlet valve body and is arranged between the inlet valve body and the outlet valve body so that the valve rod assembly can drive the valve disk to open or close a channel in the lower end surface of the cylinder of the inlet valve body. In the single-disk valve, the influence on the action of a valve caused by the accumulation and the slag-bonding of materials can be eliminated by a funnel-shaped valve cavity; simultaneously, the single-disk valve is simple in structure and convenient to maintain, and has the characteristics of lighter weight, lower cost and longer service life compared with other material cutout valves such as sealing ball valves and the like in the same specification, hardness and density; and a plurality of single-disk valves can be connected in series or are installed and used by exchanging with other ball valves.

The invention discloses a patient caring bed with a turnover assisting function and a turnover assisting method thereof and belongs to the field of caring beds. The patient caring bed comprises a bed body frame, a bed plate, an ejection mechanism and a cloth winding mechanism, wherein the cloth winding mechanism comprises cloth winding rolls, a driving device and turnover cloth; the cloth winding rolls are arranged at the two sides of the caring bed; the driving device is used for driving the cloth winding rolls to rotate; the two ends of the turnover cloth are respectively and fixedly wound on the cloth winding rolls at the two sides; the turnover cloth between the two cloth winding rolls are laid on the bed plate; the ejection mechanism comprises two ejecting rolls positioned under the turnover cloth, an ejecting bracket for installing the ejecting rolls, an electric pushing rod arranged under the ejecting bracket and a guiding device. The invention also discloses the turnover assisting method of the patient caring bed. The patient caring bed and the turnover assisting method disclosed by the invention have the advantages that the inclination of the body of a patient is realized by utilizing the ejection mechanism and the cloth winding mechanism to assist serving staffs to turn over the patient, the turnover action is gentle, the comfort level of the patient is high, and the working intensity of the serving staffs is greatly reduced.

The aerostatic bearing comprises a throttler mounting seat, a rotating shaft, a first thrust plate, a second thrust plate and a throttler set, mounting through holes perpendicular to a first plane and a second plane are formed in the throttler mounting seat, the rotating shaft is arranged in the mounting through holes of the throttler mounting seat, and the first thrust plate and the second thrust plate are arranged in the throttler mounting seat. The first thrust plate is fixedly connected with the first end of the rotating shaft, the second thrust plate is fixedly connected with the second end of the rotating shaft, the throttler set is located between the throttler mounting base and the first thrust plate and between the second thrust plate and the rotating shaft, and an air inlet channel communicated with the throttler set is arranged in the throttler mounting base; the throttler group is mounted between the rotating shaft and the throttler mounting seat, a high-pressure gas film is formed between the rotating shaft and the throttler mounting seat through the throttler group, and the surface of a kinematic pair is isolated by the high-pressure gas film, so that the kinematic friction can be remarkably reduced, and the high-precision high-speed low-heat-emission motor has the advantages of high precision, high speed, low heat emission, no pollution and the like.

One kind of rate of fluid flow adjusting device, including the outer covering, installs in the outer covering the electrically controlled valve body and the control electrically controlled valve body movement control circuit board, states the electrically controlled valve body to include the coil, the skeleton, the magnetic core good support, the ball arm of force and the magnetic core stick, outside the skeleton circles the coil, the coil causes the welding control circuit board, for the skeleton center magnetic core good support through two designs balls arm of force with the skeleton company is a body, a magnetic core stick end loads fixes on the magnetic core good support, the magnetic core stick another end surface pastes is useful coats the idle talk to the control electromagnetic screen to open / shutting down gas bag, The outer covering is the electromagnetism screening can, the control circuit board surface has the shield level, on the electrically controlled valve body fixed once more control circuit board, has the electromagnetism screening can and the seal electromagnetic screen gap control circuit board permanent connection constitution electromagnetism entire screening can. Uses this invention, screening can eliminated the electronmagetic interference through the electromagnetism, the electric circuit control section and the product design is a body, big simplified the product zero number of articles, reduced the production cost, is the production is easier to manage the control, makes the product reliability greatly to enhance.

The invention relates to the field of manufacturing equipment of smoke suppressing glass sand and particularly relates to manufacturing equipment of smoke suppressing glass sand. The manufacturing equipment comprises a glass crusher, a paraffin wrapper and a motor. The glass crusher is connected to a conveyer belt, the other end of the conveyer belt is connected to the paraffin wrapper, the paraffin wrapper comprises a smelter and a hollow heating layer located on the bottom surface of the smelter, a top cover is arranged on the smelter, the upper portion of the top cover is connected to a condensing pipe, the lower portion of the top cover is connected to a plurality of stirring rods which are different in length, screens are fixedly arranged at the bottoms of the stirring rods, the top cover is connected to a driving shaft, the driving shaft is connected to the motor, a feed inlet of paraffin is formed in the driving shaft, and the feed inlet extends into the smelter downward along the driving shaft. According to the manufacturing equipment provided by the invention, coarse glass sand is prepared by using leftovers of glass, so that raw materials are saved; furthermore, a step of preparing glass at a high temperature is further cancelled, so that the preparation cost is lowered. The paraffin glass sand manufactured by the equipment forms cakes during smoke suppression, so that the cakes are only be cleaned if the paraffin glass sand is cleaned, and the manufacturing equipment is simple to operate.

The invention discloses a proportional metering oil needle for load pressure displacement feedback, which adopts a double-movable cylinder body of a valve sleeve and a valve core and a hollow oil needle structure with a constraint spring, and adapts the load fluctuation by designing the spring stiffness to make the metering oil needle output The flow rate is basically constant, and only the external mechanism controls the displacement of the valve sleeve body to achieve the purpose of flow ratio adjustment. The spring seat of the metering oil needle is rigidly connected with the outer cylinder, the adjusting bolt can adjust the spring preload, and the oil needle is supported by the spring. The external drive mechanism adjusts the position of the inner cylinder to control the opening of the oil needle. When the position of the inner cylinder remains unchanged, the oil needle changes the expansion and contraction amount through the spring to balance the load pressure, so that the metering oil needle moves in a small range to realize the fine adjustment of its opening. The spring stiffness is designed according to the flow equation, so that the change of the opening offsets the change of the flow area caused by the pressure difference fluctuation. The invention realizes the accurate proportional control of the flow rate, and simultaneously simplifies the structure of the metering device containing the oil needle, and has great practical value.

The invention discloses homogenizing equipment for producing and processing chemical and blended textile fabrics and a using method of the homogenizing equipment, and particularly relates to the field of textile production. The homogenizing equipment comprises a homogenizing treatment tank, an unwinding roller and a winding roller which are located at the two ends of an inner cavity of the homogenizing treatment tank are detachably installed in the homogenizing treatment tank, a rotation driving mechanism is in transmission connection with the end part of the winding roller, a circulating homogenizing tank is fixedly installed in the homogenizing treatment tank, a thermal fixing mechanism is fixedly installed on one side of the circulating homogenizing tank, and a circulating flow guide mechanism and a high-pressure spray pump are fixedly installed in the circulating homogenizing tank. According to the scheme of the homogenizing equipment for producing and processing the chemical and blended textile fabrics, the textile homogenizing equipment adopts the circulating slurry spraying and homogenizing structure, a homogenizing spraying mechanism and the circulating flow guide mechanism are used for spraying slurry and circularly guiding the slurry in the circulating homogenizing tank, slurry flow driving is carried out on the two sides of a fabric correspondingly, so that the slurry can go deep into gaps of fabric fibers, the adhesive capacity of the feed liquid is effectively enhanced, and the homogenizing effect is improved.

The invention discloses a transplanting mechanism special for male parent two-line transplanting of hybrid rice seed production. The transplanting mechanism comprises a transmission part, a left transplanting mechanism and a right transplanting mechanism, wherein the left transplanting mechanism and the right transplanting mechanism are in symmetrical structures, the left transplanting mechanism is respectively in hinge connection with the left end of a gear shaft of the transmission part and the rear left part of a transmission case through a left crank shaft and a left rocker shaft, the right transplanting mechanism is respectively in hinge connection with the right end of the gear shaft of the transmission part and the rear right part of the transmission case through a right crank shaft and a right rocker shaft, and the crank of the left crank shaft and the crank of the right crank shaft are arranged by 180 degrees at two ends of the gear shaft. By adopting the transplanting mechanism, the left seedling claw of the left transplanting mechanism and the right seedling claw of the right transplanting mechanism realize a two-row staggered transplanting function, the final transplanting effect of the one-stage two-row male parent is 'delta-shaped'or triangular, specific agronomic requirements of male parent one-stage two-line interval transplanting of the hybrid rice seed production can be met, seedling intervals are uniform, the seedling transplanting quality is good, the production efficiency is high, and the labor intensity of the hybrid rice seed production is effectively reduced.

The invention relates to the technical field of pneumatic elements, in particular to a sliding-sleeve type two-position three-way pneumatic high-speed switching valve, which comprises a valve body, wherein a valve cavity is molded in the valve body, a gas inlet, an exhaust port A and an exhaust port B are arranged in the valve body, the exhaust port A is communicated to the top of the valve cavity through a through hole A, the gas inlet is communicated to the upper part of the valve cavity, a sealing element is arranged on the inner wall of the valve cavity, a fixed block is molded in the valve cavity, a through hole B corresponding to the through hole A is arranged in the fixed block, the through hole B is communicated with the exhaust port B, a sealed sliding-sleeve assembly is arranged between the fixed block and the sealing element, and a reset spring is arranged between the sealed sliding-sleeve assembly and the fixed block. No motive seal exists between sealing pairs of the sliding-sleeve type two-position three-way pneumatic high-speed switching valve, so that the working life of the valve is prolonged, and the kinetic friction is reduced.

The invention discloses a three-way valve assembly of a new energy vehicle cooling system and a control method and belongs to the technical field of new energy vehicles. Through the three-way valve assembly of the new energy vehicle cooling system and the control method, the problems of poor leakproofness, jamming, instable work, low precision, high cost and the like in the prior art are solved, and high applicability is achieved particularly for special occasions with strict requirements for work environment and performance. The three-way valve assembly of the new energy vehicle cooling system comprises a three-way valve shell and a three-way valve core. A drive drives the three-way valve core to rotate, and then a cooling liquid channel is adjusted. The drive comprises a worm-gear transmission mechanism driven by a motor, and a worm gear is connected with a reduction gear unit. The three-way valve core is installed on a reduction gear of the reduction gear unit. The angle needed by rotation of the motor is controlled by a controller. The three-way valve assembly of the new energy vehicle cooling system and the control method have the advantages that structure is reasonable, application range is wide, and work is stable and reliable, and good economic benefits and wide market prospects are achieved.

The invention discloses a current-limiting operating mechanism of a circuit breaker. The mechanism comprises a main shaft, an opening half shaft, a lower connecting rod and a jump pin assembly. When the circuit breaker is short-circuited, the main shaft, the lower connecting rod, the jump pin assembly and the opening half shaft are linked in sequence to protect limit current of the circuit breaker. The mechanism is characterized in that the the jump pin assembly comprises a support, a jump pin plate, a first rotating shaft, a second rotating shaft and an elastic piece; the first rotating shaft penetrates through the support; the support can rotate along the first rotating shaft; a second rotating shaft is arranged on the support; the second rotating shaft penetrates through one end of thejump pin plate; and an elastic piece is arranged between the other end of a tripping plate and the support, the elastic piece enables the tripping plate to abut against the opening half shaft in theclosing state, and when the circuit breaker is short-circuited, the elastic piece pushes the tripping plate to rotate, so that the tripping plate is separated from the opening half shaft. The inbvention is stable in work, rapid in tripping and accurate in current limiting.