48 results about "Transverse frictions" patented technology

The invention relates to the technical field of MEMS (Micro-electro-mechanical System) integration processing, in particular to a single-surface friction power generator based on transverse friction and a preparation method of the single-surface friction power generator. The single-surface friction power generator is formed in a manner that two identical structures are arranged in a relatively and mutually horizontal friction manner, wherein each structure comprises five layers; conducting layers are arranged at the outermost layers; thin film layers are adjacent to the conducting layers; thin film nano structure layers are arranged on the other sides of the thin film layers; metal electrodes are arranged on the other sides of the thin film nano structure layers; and metal electrode nano structure layers are arranged on the other sides of the metal electrodes. The single-surface friction power generator has the advantages that compared with the traditional two-layer thin film power generator in a vertical direction, the single-layer structure uses friction in a horizontal direction, and electrode outputs are in the same plane, so that subsequent processing and integration are facilitated; the nano power generator and the preparation method thereof are simple in technology, low in cost, high in productivity, and easy to integrate and process; mass production is available; and the novel structure effectively uses the friction in the horizontal direction in nature.

A starter for a motor vehicle comprises an electric motor having an output shaft which drives a coaxial starter head through a speed reducer. The speed reducer incorporates an epicyclic gear train, including a cylindrical casing within which the internally toothed crown wheel of the epicyclic gear train is mounted in rotation. The crown wheel is coupled in rotation to the casing through a friction type torque limiting device, which is interposed axially between the crown wheel and a transverse plate of the casing. The torque limiting device includes at least one annular transverse friction surface of the crown wheel, which is biased elastically into axial engagement against a reaction surface coupled in rotation to the casing.

The invention relates to an insulated operating rod, and is particularly applicable to temporary wiring for test and maintenance to a high-altitude device and operated on the ground. At present, high-altitude test wiring for the maintenance and the test to a power transmission device is relatively difficult, and certain unsafe factors affect the device and operators. The multi-angle operating rod provided by the invention is composed of a wiring clamp, a specific push-pull rod and a fixed bracket; the wiring clamp consists of an upper clamp jaw and a lower clamp jaw, and the lower clamp jaw moves along pulleys; a steel wire rope connecting an upper pulley and a lower pulley is controlled by a specific push-pull mechanism operated by lifting a long rod; the specific push-pull mechanism is provided with a locking mechanism capable of ensuring a clamping force of the clamp jaw; a mounting hole located between the upper clamp jaw and the lower clamp jaw is long and sloping, and enables the clamp jaws to be tightly clamped and generate transverse friction movement at the same time, thereby overcoming an oxidation film at a wiring position. The invention enables the conventional high-altitude working to be completed on the ground, fundamentally avoids danger caused by climbing, and greatly improves working conditions for the field operators.

A passive hydraulic control linkage rectification machine which can rectify and prevent the run deviation of a conveyor belt consists of a hydraulic control detecting and driving system and a linkage rectification mechanism. The hydraulic control detecting and driving system consists of a detecting and driving wheel, an oil pump, a cylinder, a midpoint controlling station, a temperature controller and an oil pipe. The linkage rectification mechanism consists of discrete rollers, roller racks, a universal joint, an arm rod, a connecting rod, a pin and a frame. The hydraulic control detecting and driving system is used to detect the run deviation of the belt and simultaneously supplies power for driving the roller racks to deflect. When the belt runs deviated, the belt drives the detecting and driving wheel to rotate. The detecting and driving wheel drives the oil pump to strike the oil pressure to the midpoint controlling station. A logistic valve group of the midpoint controlling station controls the piston rod of the cylinder (4) to push or pull. The piston rod drives the linkage rectification mechanism to lead the roller (11) on the mechanism to deflect synchronously in the same direction. An angle is formed between the linear moving direction of the roller after the deflection and the moving direction of the belt, and the transverse friction of the belt generating during the above process drives the belt to run in the middle. The passive hydraulic control linkage rectification machine requires no power and hydraulic function and has the advantages of synchronous linkage, self-defecting, self-driving and self-system.

The invention provides an air flotation high-precision detection tool and belongs to the field of optical detection. The detection tool solves the technical problems that due to stress and friction caused by a supporting mode of a traditional detection tool in the prior art, deformation is caused, and precision is low. The detection tool comprises a plane base. A plurality of air injection holes are distributed in the surface of the base. Three limiting blocks are arranged around the base to ensure that the detection work-piece position is fixed. The air flotation principle is utilized, a method of injecting air through the small holes is adopted, an air gap is formed between a detection work-piece and a supporting rigid body, and therefore the work-piece can float above the detection tool to be detected; as an air flotation mode is adopted, the work-piece is stressed uniformly and stably, the transverse friction is avoided, the deformation of the detection work-piece and the stress caused by the transverse friction due to supporting of the tool can be eliminated, the detection reproducibility and the detection precision are improved, and the detection tool can be applied to ultra-high-precision element face shape detection.

The invention provides a device and a method for measuring a transient sliding friction coefficient based on fiber gratings. The device comprises a small wheel assembling mechanism, a large wheel assembling mechanism, a demodulator and an industrial personal computer; fiber gratings are respectively and symmetrically arranged on front and back surfaces of two supports on the two sides of a small wheel and front and rear sides of a steering wheel; an incidence angle regulator is further installed on a supporting plate; a central plane of a large wheel of the large wheel assembling mechanism and a central plate of the small wheel are on the plane, and wheel sides are tangent; a light source built in the demodulator is transmitted to each of the fiber gratings through a rotary connector, contact points between the large wheel and the small wheel produce a friction force with the rotation of the large wheel, the friction force is transmitted to each of the fiber gratings and the fiber gratings generate strain signals; the demodulator demodulates the strain signals of the fiber gratings and sends demodulated signals to the industrial personal computer; the industrial personal computer receives the demodulator signals, performs acquisition and analysis, calculates transient positive pressure and friction force of the small wheel according to the wavelength shift of the fiber gratings, and calculates a transient transverse friction coefficient at the contact points through a corresponding formula.

The invention discloses a large wind tunnel test section replacement method. The purpose is to solve the problem that according to an existing wind tunnel test section transportation mode, travellingmechanisms turn inconveniently or positioning is not accurate during replacement. According to the large wind tunnel test section replacement method, test section transportation vehicles are adopted for conducting test section transportation and replacement, a test section is not provided with travelling mechanisms, and through lifting, 90-degree turning of wheels and freely parallel operation ofthe multiple vehicles of the test section transportation vehicles, turning of the wind tunnel test section is achieved; meanwhile, a V-flat slideway mode is adopted for positioning wind tunnel test stations of the test section, round liquid hydrostatic bearings are arranged on the test section transportation vehicles and are used for reducing transverse friction force when the test section falls into a slideway, and through cooperation of the V-flat slideway, the wind tunnel test section and the round liquid hydrostatic bearings, the wind tunnel test section is precisely positioned. By means of the large wind tunnel test section replacement method, the problems that during wind tunnel test section transportation and replacement, positioning is not accurate, and the travelling mechanisms need to turn can be effectively solved, so that the large wind tunnel test section replacement method has a high application value.

The invention discloses a belt deflection correcting device. The device comprises supporting legs, a fixing bracket, and an aligning roller, a driving detection device and oil cylinders which are arranged on the fixing bracket, wherein the fixing bracket is a horizontal beam bridged on the supporting legs; the upper parts of the two ends of the fixing bracket are provided with an arc-shaped track respectively; the two arc-shaped tracks are concentric with each other; roller wheels at two ends of the aligning roller are embedded with the arc-shaped tracks; and the two ends of the aligning roller are hinged with oil cylinder piston rods on the fixing bracket. The device has a larger bottom space, a compact structure and greatly improved performance reliability and is convenient to mount. When a belt is deviated toward one side, the side edge of the belt touches the driving detection device and drives an oil pump to work, so that the oil cylinder piston rod on one side is extended, and the oil cylinder piston rod on the other side is retracted at the same time; the oil cylinders on the two sides perform reverse motion synchronously to drive the aligning roller to rotate; and transverse friction force is generated depending on a deflection angle formed between the rotating direction of the aligning roller and the advancing direction of the belt so as to finally realize a deflection correction function.

The invention provides a transverse friction force calibration device and method. The device is characterized in that a drawing device provides the drawing force for two testing wheels through two drawing force arms, the two testing ends of a testing system force sensor are connected with the corresponding positions of two drawing cables, the two testing ends of a reference force sensor are connected with two friction testing plates, the output end of the reference force sensor is connected with the input end of a co-excitation multi-source data acquisition machine, and the output end of the co-excitation multi-source data acquisition machine is connected with a friction force calibration software module; the co-excitation multi-source data acquisition machine is used for acquiring data from the reference force sensor and the testing system force sensor simultaneously, and the reference data sequence and the to-be-calibrated data sequence are obtained respectively; and the friction force calibration software module is used for calibrating the to-be-calibrated data sequence by utilizing the reference data sequence so as to achieve the technical effect that the transverse friction force testing result of the testing system is calibrated.

The invention belongs to the technical field of urine mats and provides a urine mat convenient in separation from a bed. The urine mat comprises a body, a chip and pull ropes, the body is formed by integral quilting of five fabric layers including an upper contact layer, a water absorption layer, a water-resistant layer, a protection layer and a lower bottom moving layer sequentially from top to bottom, the upper contact layer and the protection layer are made of warp knitted fabrics, the water absorption layer is made of needle-punched nonwoven fabrics, the water-resistant layer is made of TPU (thermoplastic polyurethanes) composite membranes, and the lower bottom moving layer is made of satin fabrics with transverse friction coefficients larger than longitudinal friction coefficients. The chip is arranged at the edge of the body and positioned between the protection layer and the water-resistant layer, and the pull ropes are sewn on the outer periphery of the body. The urine mat has the advantages that the body is highly comfortable, excellent in water absorption performance and high in breathability and moisture resistance; owing to the pull ropes, a patient lying on the urine mat can be transferred conveniently; by the aid of the chip, relevant information can be stored in the chip to make it convenient for people to know.

The invention discloses a measurement method of a transient transverse friction coefficient of a rolling contact point based on optical fiber gratings. The measurement method comprises the following steps of symmetrically pasting the optical fiber gratings with different central wavelengths on the two sides of a big wheel, sequentially marking the optical fiber gratings, adjusting a certain normal force generated by the big wheel and a small wheel at the rolling contact point, forming a certain attack angle between the big wheel and the small wheel to allow the big wheel to generate a certain transverse force at the rolling contact point, controlling the rotating speed of the big wheel, transmitting a strain signal generated by the big wheel to the optical fiber gratings when the big wheel rotates, transmitting a built-in light source of a demodulator to the optical fiber gratings via an optical fiber grating rotary connector, allowing the optical fiber gratings to generate strain signals, demodulating the strain signals of the optical fiber gratings with the demodulator, transmitting demodulated signals to an industrial personnel computer, allowing the industrial personnel computer to acquire and analyze the demodulated signals, and calculating transient positive pressure and friction of the big wheel at the rolling contact point according to wavelength shift of the optical fiber gratings.

The invention provides a pendulum type deviation adjusting carrier roller and a using method thereof. The pendulum type deviation adjusting carrier roller comprises a machine frame of a conveying machine and a deviation correcting carrier roller body, wherein the deviation correcting carrier roller body is arranged on the machine frame, the bottom of the deviation correcting carrier roller body is fixed on a base plate, and the base plate is hinged to the machine frame. According to the pendulum type deviation adjusting carrier roller and the using method thereof, the structure is simple, due to the fact that when a belt deviates, a pendulum type deviation adjusting mechanism can be used for applying the transverse eccentric force which is similar in the deviation direction to the automatic deviation adjusting carrier roller body, the automatic deviation adjusting carrier roller body can generate pendulum type motion and moves to an inclined state around a hinge point with the machine frame to apply the transverse friction counter force which is deviated towards the central axis to the belt so that the belt can automatically adjusting the deviation to a normal orbit, meanwhile, the automatic deviation adjusting carrier roller body can also be reset gradually, the provided friction force can be gradually decreased along with the reset of the belt, and therefore the self-adaptive deviation adjusting effect can be achieved.

The invention discloses a rotating type friction energy dissipation wall, and relates to the field of seismic reduction control of building structures. The invention aims at providing a friction energy dissipation wall capable of realizing energy dissipation-seismic reduction by using displacement deformation in a structure under the action of an earthquake. In order to realize the aim, the rotating type friction energy dissipation wall is characterized in that a movable frame is connected between upper and lower beams of a building; a plurality of transverse friction steel plate groups and aplurality of longitudinal friction steel plate groups are arranged in the movable frame, and the horizontal friction steel plate groups and the longitudinal friction steel plate groups are overlappedin a crossed way; movable friction nodes are arranged at the overlapped parts. When the building structure is subjected to a horizontal earthquake action, the movable frame is deformed, the friction nodes are rotated, and energy dissipation is achieved by means of mutual friction of transverse friction steel plates and longitudinal friction steel plates. The stability of friction between the friction steel plates can be maintained by means of friction plates in the friction nodes, and hard gaskets in the friction nodes can prevent the friction steel plates from being damaged, so that the service lives of the friction steel plates are prolonged.

The invention provides a seat cover cloth inspection and test platform. The platform comprises a machine bench, cloth fixing frames, a packing square cylinder, a fixed bottom plate, a rocker A, a guide round rod, a fixed top plate, a locking cylinder, processing frames, a processing conductor, a transverse friction frame, a rocker B, a longitudinal friction frame, a rotating shaft frame, a rockerC, a lifting frame, a ventilation test plate A, a ventilation test plate B and a friction wheel. The cloth fixing frames are integrally arranged on two sides of two ends of a top of the machine bench.Two sets of machining frames are fixedly arranged on one side of the top of the machine bench through bolts, and T-shaped sliding grooves are arranged in bottom sides of the tops of the machining frames. Through arranging the fixed bottom plate and the fixed top plate, a cloth fixing function with strong stability is provided for the test platform, and an inclined plane structure and a sphericalstructure are arranged between the fixed bottom plate and the fixed top plate so that stability is increased for cloth fixation. The fixed bottom plate and the fixed top plate can be cooperated with the rocker A to rotate so that cloth is secondarily tensioned, and use is convenient.

The invention relates to a damping method and device for friction induction modal conversion. The method comprises the steps of performing pre-modal experimental analysis on a beam structure, obtaining response signals of the beam structure, and determining a main modal forming response, wherein the main modal is the main composition for the beam structure response signal under the current excitation condition; performing damping treatment, wherein normal pressure is applied to the beam structure at any vibration mode extreme value position corresponding to the main modal of the beam structure, transverse friction force along the beam structure is generated, normal pressure is gradually increased, and response to the beam structure is detected; if response is lowered to be not larger thana set threshold value, determining the main modal forming the response again, and repeatedly executing the damping treatment process till the response of the beam structure is lowered to be larger than a set threshold value. Pre-modal experimental analysis is performed on the beam structure, the main modal is determined, damping treatment is performed according to the main modal, the method is simple and reliable, and large movement of the structure caused by mismatching of modals or resonance can be greatly lowered.

The invention discloses a batch chamfering clamp of acousto-optic crystal blocks. The batch chamfering clamp comprises an outer frame, a locating block, an end baffle, pressing plates and rubber pads, wherein an installation groove is formed in the upper surface of the outer frame and the locating block is fixedly installed inside the installation groove; a T-shaped protrusion structure composed of an end protrusion and a central protrusion is formed on the upper surface of the locating block, and crystal block placement areas are formed on two sides of the central protrusion on the upper surface of the locating block; the end baffle is movably arranged on the outer frame through adjusting mechanisms and can transversely move so that the crystal blocks placed in the crystal block placement areas can be clamped between the end baffle and the end protrusion; the pressing plates are detachably arranged on the central protrusion and are used for simultaneously and vertically pressing the crystal blocks placed in the crystal block placement areas on the two sides of the central protrusion; and the rubber pads are arranged on the lower surfaces of the pressing plates and can increase vertical pressing force on the crystal blocks and transverse friction force after the crystal blocks are pressed. According to the batch chamfering clamp, the processing accuracy can be guaranteed, and the processing efficiency can be greatly improved.

The invention relates to a device for increasing the transverse friction of a template for manufacturing precast concrete. The device is used for fixing a side die (3). The device comprises a magnet (1) and a rubber strip (2). The magnet (1) is fixed to the side die (3), a groove (1) is formed in the outer circle of the magnet (1), the rubber strip (2) is arranged in the groove, the friction between the magnet (1) and the side die (3) is increased, and the side die (2) is prevented from sliding. Compared with the prior art, the device has the advantages of being simple in structure, easy to main, capable of reducing workloads and the like.

The invention provides a bath towel and a production technology thereof, and relates to the field of articles for daily life. The production technology of the bath towel, provided by the invention, ischaracterized in that first lint cloth and second lint cloth are fixed at two sides of towel cloth respectively. The first lint cloth comprises first sticking lint; the second lint cloth comprises second sticking lint matched with the first sticking lint in a sticking manner. The technology is simple and feasible, has relatively high production efficiency and is convenient for batch production ofthe bath towels. The first sticking lint and the second sticking lint, which can be matched in the sticking manner, are arranged at two sides of the bath towel produced by the technology. If a user needs to wrap a body with the bath towel, two side faces are in mutual contact with each other; in a contacting process, the first sticking lint and the second sticking lint are matched in the stickingmanner, so that a transverse friction force between the bath towel is increased and the sticking stability of the two side faces is enhanced; however, the two side faces also can be easily separatedwhen the user uncovers a sticking part of the two side faces by hands, so that the bath towel is convenient to use; the bath towel is very stable when being wrapped on the body of the user and the bath towel is extremely convenient to take off.

The invention discloses a shallow-layer rapid pile driver suitable for a soft texture surface. The shallow-layer rapid pile driver comprises a pile frame, a pile hammer, a shifting mechanism and lifting equipment. The shifting mechanism comprises a pair of guide rail cross beams between which a first sliding block and a second sliding block are arranged, Side stop blocks are arranged at the two ends of the guide rail cross beams respectively, tension springs are arranged between the first sliding block and the side stop blocks and between the second sliding block and the side stop blocks, round holes are formed in the first sliding block and the second sliding block, cams are installed at the power output ends of driving motors and located in the round holes, a first shifting arm is arranged on the first sliding block, and a second shifting arm is arranged on the second sliding block. Compared with the prior art, the shallow-layer rapid pile driver suitable for the soft texture surfacehas the beneficial effects that through the opposite movement of the first shifting arm and the second shifting arm, the pile hammer inclines slightly in the descending process, when the pile hammerin the slightly inclined state collides with the pile body, the pile body is expanded slightly in a pile hole in the ground along with transverse friction force, so that the pile body sinks easily, and the pile driver is suitable for being used in the soft surface environment.

The invention relates to an anti-dragging device for a transverse moving anchor of a cutter suction dredger. The anti-dragging device comprises the transverse moving anchor and a transverse moving steel cable and is characterized in that the anti-dragging device further comprises a transverse moving anchor chain used for increasing the contact area and the transverse friction force with underwatersoil, one end of the transverse moving anchor chain is connected with an anchor column connecting ring of the transverse moving anchor through a first connecting ring, and the other end of the transverse moving anchor chain is connected with a lock catch arranged at the end of the transverse moving steel cable through a second connecting ring. By adopting the brand-new technical scheme, comparedwith the prior art, the ground gripping force of the transverse moving anchor can be effectively increased, cable distortion is prevented, the positive effect on transverse moving construction of a crane span structure of the cutter suction dredger is achieved, and the anti-dragging device is suitable for cutter suction dredger construction. In addition, the anti-dragging device further has the advantages of being simple in structure, convenient to use and the like.

The invention relates to a spinning method capable of adaptively regulating and controlling a yarn structure and a false twisting device, and belongs to the technical field of spinning processing. An electromechanical device is mainly adopted to drive a rotating device to run at a high speed, and a tension device regulates a contact behavior and restrains yarn movement by means of self weight; during spinning, yarns pass through a gap between the rotating device and the tension device; and the transverse friction force generated by high-speed rotation of the rotating device regulates and controls the fiber arrangement structure and heats the yarn at the same time, so that the fiber modulus is reduced, and the fibers are fully transferred. The false twisting device is simple and reasonable in structure and high in production efficiency, and the spun yarn has the advantages that the hand feeling is soft, the strength is improved, hairiness is obviously reduced, and the evenness is stable.

The invention discloses a separated friction support with adjustable horizontal two-way mechanical parameters. The support comprises a rotating plate, a longitudinal translation plate, a longitudinal friction cylinder, a two-way translation plate, a transverse friction cylinder and a fixed plate from top to bottom. Wherein a spherical crown body at the lower part of the rotating plate is attached to a concave surface at the upper part of the longitudinal translation plate to form a pair of rotating friction surfaces so as to bear the rotation of the support in a horizontal plane; the longitudinal translation plate, the longitudinal friction cylinder and the bidirectional translation plate are overlapped to form two pairs of sliding friction surfaces so as to bear the translation of the support along the horizontal longitudinal direction; the bidirectional translation plate, the transverse friction column body and the fixing plate are overlapped to form two pairs of sliding friction surfaces so as to bear translation of the support in the horizontal transverse direction. Compared with the prior art, the horizontal deformation of the support is decomposed into translation and rotation in the two vertical directions in the plane, the friction surfaces in the two horizontal directions can be designed respectively, so that different requirements of mechanical properties in the two directions are met, and meanwhile, the energy dissipation capacity of the support under the action of earthquakes and the like is improved.