67results about How to "Guaranteed reciprocating motion" patented technology

The invention discloses an audio device and a method thereof. The audio device comprises a voice coil and a vibration structure. The voice coil is in mutual exchange with a magnetic return system. The vibration structure comprises an upper suspension edge and a lower suspension edge, wherein the upper suspension edge is used for guaranteeing upward movement and upward displacement of the voice coil, and the lower suspension edge and the upper suspension edge are parallelly arranged to guarantee downward movement and downward displacement of the voice coil. When the voice coil moves upwardly and has an upward displacement, the lower suspension edge pulls the voice coil to return to an initial position. When the voice coil moves downwardly and has a downward displacement, the upper suspension edge pulls the voice coil to return to the initial position. Thus, the voice coil does reciprocating motions in a stable and linear mode.

The invention discloses a transmission mechanism, a head mounted display, and a refraction adjusting method for a head mounted display. The transmission mechanism is used for controlling movement of a first framework relative to a second framework. The first framework is connected to the second framework through a connecting member arranged on the first framework. The transmission mechanism includes a dial wheel, a worm, a turning gear, a transmission shaft and transmission gears. A horizontal frame of the second framework is equipped with a containing groove, part of the dial wheel is arranged in the containing groove and the dial wheel is arranged on the horizontal frame of the second framework with the worm being an axis. The transmission shaft is arranged on the horizontal frame of the second framework. The turning gear sleeves the transmission shaft and fits the worm. The transmission gears are symmetrically arranged on vertical frames of the second framework. The upper portion of the connecting member is equipped with tooth bars, and the tooth bars engage with the transmission gears. When the transmission gears fit the tooth bars, the connecting member drives the first framework to move in a straight reciprocating manner relative to the second framework. According to the technical solution, turning transmission and rotary to rectilinear motion are achieved, transmission is steady and reliable, and the transmission mechanism is simple in structure and low in cost.

The invention discloses a weaving sword head for a flat spun gold textile and a sword rod loom, and the weaving sword head comprises a sword casing, a hook and a motion actuating mechanism, wherein, the hook is fixed on the sword casing by a screw; the motion actuating mechanism is installed inside the sword casing; a loose thread guiding apparatus is arranged on the hook; the hook is connected to the motion actuating mechanism; the motion actuating mechanism comprises a yarn clamping head, a brace, a linkage spring seat, a folding apparatus and a compression spring; the hook is connected to the yarn clamping head; the yarn clamping head is connected to the brace; the brace is connected to the linkage spring seat; the folding apparatus is arranged at the central section of the linkage spring seat; and the compression spring is arranged at the end of the linkage spring seat. The weaving sword head is used for processing textiles like metal wire or flat spun gold on a sword rod loom. The weaving sword head for the sword rod loom is safe and reliable, has a simple and stable structure, and can get a stable yarn clamping effect.

The invention belongs to the field of seawater desalination, and specifically discloses a wave-energy-based seawater desalination system. The system comprises a wave energy conversion device and a seawater desalination device, wherein the wave energy conversion device comprises a first buoy, a second buoy, a third buoy and a fourth buoy which are connected in sequence by transmission bearings, andfurther comprises four sets of supercharging units with the same structure; each set of the supercharging units comprises a piston, a piston cylinder and a hydraulic oil cylinder which are connectedin sequence; the bottom of each hydraulic oil cylinder is an elastic diaphragm; the seawater desalination device comprises four sets of seawater desalination units with the same structure; each set ofthe seawater desalination units is connected with the corresponding supercharging units; pressure applied by the supercharging units enables seawater to be filtered through a reverse osmosis membraneso as to obtain fresh water. According to the seawater desalination system disclosed by the invention, the structure and layout of the wave energy conversion device are optimized, so that the situation that the stretching and compression of the pistons occur in pairs during the change of the angular displacement of one buoy can be ensured, thereby greatly improving the ability to absorb and transform wave energy.

The invention discloses an entire circular type internal recycling reverser which comprises a cylindrical reverser body and an S-shaped recycling channel. The S-shaped recycling channel is integrated by that the cylindrical reverser body is de-bossed inward. A connecting line is a joint between the S-shaped recycling channel and an upper surface of the cylindrical reverser body, wherein the connecting line is located at two end rolling rails of a nut. Nut recycling mouths which are anastomotic with connecting mouth portion of the nut rolling rails are the two ends of the S-shaped recycling channel. The S-shaped recycling channel is an S-shaped revolving bead space trajectory. The mathematical model of the S-shaped recycling channel is a quintic parabola. Engineering plastics of reinforced fibers can be used by the cylindrical reverser body, and the cylindrical reverser body is produced by an injection moulding craft. The upper portion of the cylindrical reverser extends out to form two assistant locating outer arc portions to increase stability of the reverser. The entire circular type internal recycling reverser is good in recycling trajectory smoothness, high in transmission property, high in production efficiency, low in cost and long in service life.

The invention discloses a dust removing method for a tube-type heat exchanger and a dust removing device thereof. The dust removing device comprises a cutter frame, dust removing cutters, first sliding wheels and guiding rails. The dust removing cutters are installed on the cutter frame and can scrape dust on heat exchange tubes. The arranging direction of the dust removing cutters is perpendicular to the axial direction of the heat exchange tubes, and the width of each dust removing cutter is smaller than the distance between the two adjacent rows of the heat exchange tubes, so it is ensured that the dust removing cutters can move back and forth between the two adjacent rows of the heat exchange tubes. In the specific using process, the cutter frame is pushed to slide in the guiding rails through the first sliding wheels, and the dust on the heat exchange tubes is scraped through the dust removing cutters along with the motion of the cutter frame, so that the dust on the heat exchange tubes is removed in a large area, the thickness of the dust covering the heat exchange tubes is reduced, and the heat exchanging efficiency of the heat exchange tubes is ensured.

The invention discloses a gear reducer transmission mechanism for mold locking of an all-electric injection molding machine. The gear reducer transmission mechanism comprises a crosshead, a mold-locking tail plate and a mold-locking front plate, wherein the crosshead and the mold-locking tail plate are connected with the mold-locking front plate through a transmission mechanism. The gear reducer transmission mechanism is characterized by further comprising a gear rack connected with the crosshead after penetrating through the mold-locking tail plate; the gear rack is driven by a driving motor to reciprocate, so as to act on the crosshead to realize the mold locking motion. According to the gear reducer transmission mechanism disclosed by the invention, the gear rack is used for substituting the ball screw for the mold locking of the conventional injection molding machine; in comparison, the gear rack is free of the sliding phenomenon in the transmission process due to the rack transmission manner and high in transmission performance; particularly, the gear rack is arranged as bilateral racks; the two racks are simultaneously subjected to gear transmission, so that the stress of the gear rack can be balanced, the gear rack can be ensured to reciprocate on the axis, further the mold locking can be successfully performed, and meanwhile the abrasion can be reduced; the gear reducer transmission mechanism has the characteristics of being simple and reasonable in structure, reliable in performance, and durable.

The invention discloses an inter-pipe redistributed film generation device capable of automatically cleaning away smoke dirt outside a pipe. The inter-pipe redistributed film generation device comprises a shell, an upper baffle, a lower baffle, a film distribution unit and a hoisting liquid receiving pot. A siphon pipe is arranged in the hoisting liquid receiving pot. Each film distribution unit comprises an initial film distribution device, a fixed pulley, a movable pulley, a pulley line, a falling film pipe, a film redistribution device, an ash scraping ring and a bearing rope, wherein the top end of the falling film pipe is connected to the upper baffle, the bottom end of the falling film pipe is connected to the lower baffle, the initial film distribution device is located in a through hole in the upper baffle, the fixed pulley is fixedly connected to the initial film distribution device, the two ends of the pulley line are connected to a pulley hook of the fixed pulley and the top end of the film redistribution device, the ash scraping ring is located outside the falling film pipe, magnetic force exists between the ash scraping ring and the film redistribution device, and the two ends of the bearing rope are connected with the movable pulley and the hoisting liquid receiving pot. In the inter-pipe distributed film generation device, the film redistribution devices can reciprocate in the pipe for film redistribution, occurrence of channeling or plume is effectively restrained, liquid film distribution is uniformized, and dust accumulated outside the pipe is removed through the ash scraping devices outside the pipe.

The invention belongs to the field of agricultural machinery, and particularly relates to a speed-adjustable asynchronous opposite-cutting type straw smashing device which comprises a rack assembly (1), a three-point suspension device (2), a gearbox (3), a transmission assembly (4), a comb rod pressing device (5), a smashing device (6), a stubble cleaning device (7), a speed changing device (8) and a smashing device assembly (9). According to the speed-adjustable asynchronous opposite-cutting type straw smashing device, the initial phase difference between a front smashing cutter and a rear smashing cutter is 170-190 degrees, the front smashing cutter and the rear smashing cutter are in an asynchronous staggered motion mode in the working process, the length of smashed straw is effectively reduced, and the smashing efficiency is improved. The speed-adjustable asynchronous opposite-cutting type straw smashing device is arranged in a bilateral symmetry mode, dynamic balance can be achieved in the working state, machine vibration is reduced, and a chain wheel set is arranged, so that different chain wheels can be replaced conveniently to achieve the speed changing effect.

The invention provides a small-size moving-coil ultralow-frequency underwater acoustic transducer. The acoustic transducer comprises a magnetic circuit system structure arranged in a watertight shellin the radial direction and a radiation system structure corresponding to the magnetic circuit system structure. When a current passes through a coil, a driving force is generated in a magnetic circuit air gap under the action of a magnetic field, a radiation system is driven to vibrate according to a certain rule, and sound waves are radiated outwards through a radiation plate. The acoustic transducer has the advantages of being small in size, light in weight and convenient to use, has good adaptability, and can achieve ultra-low frequency broadband acoustic emission of 40 Hz to 1 kHz. The acoustic transducer can be used as an acoustic load, is arranged on sonar equipment and an acoustic countermeasure device, and particularly has good adaptability to a small-caliber navigation body; theacoustic transducer can also be used as a universal ultra-low frequency sound source for laboratories and lake and sea tests.

The invention discloses a cleaning pipe for cleaning material filtering corrugated tubes, and belongs to the technical field of cleaning pipes. The cleaning pipe comprises a pipe body, wherein a sealing cover is arranged on the top of the inner chamber of the pipe body, a handle is arranged on the top of the sealing cover, a control device is arranged on the right side of the handle, and the control device is arranged on the top of the sealing cover. According to the cleaning pipe for cleaning material filtering corrugated tubes, the airtightness of a dust chamber is improved because the sealing cover is arranged, and it is guaranteed that the dust in the dust chamber will not drop off again; because the handle is arranged, the pipe body is provided with a traction device, and the pipe body can be taken out smoothly; because the dust chamber is arranged, the dust sucked in by the dust chamber can be dealt with in a centralized manner; because a dust sucking pipe is arranged, the dust can be sucked away by a dust collector in a centralized manner; and the control device is used for controlling a motor to rotate so as to drive a bevel gear to rotate, the bevel gear rotates to drive a transmission gear to rotate, the transmission gear rotates to drive a rotating shaft to rotate, and the rotating shaft rotates to provide rotation power for a crank block.

The invention discloses a lithium battery metal material cutting and trimming device and a manufacturing process thereof.The lithium battery metal material cutting and trimming device comprises a processing box body, an upper cavity and a lower cavity are formed in the processing box body, and detachable universal wheels are arranged at the bottom of the processing box body; the upper cavity is provided with a material pushing device, a cutting device, a material pressing device, a first motor box and a cleaning device, a first partition plate is arranged between the upper cavity and the lower cavity, a square through hole is formed in the first partition plate and located under the material pressing device, the first motor box is arranged at the end of the square through hole, and a second partition plate is arranged at the end of the second motor box. And the lower cavity is provided with a movable trimming device, a blower device and a surface grinding device. The battery metal sheet cutting and trimming device has the beneficial effects that the pushing device and the cutting device are matched with each other, so that cutting can be carried out at the same time, the cut metal sheet is placed on the supporting panel, the battery metal sheet can be continuously cut and trimmed, and the cutting and trimming speed is increased.

The invention discloses a horizontal tube shell liquid scraping condenser based on the siphon principle. The horizontal tube shell liquid scraping condenser comprises a shell body, horizontal condensation tubes, a liquid scraping unit and a water receiving bucket. The liquid scraping unit is composed of a liquid scraping device, a driving magnet, a driven magnet and a pulley set. A siphon tube is arranged in the water receiving bucket, the device is based on the periodic water receiving and drainage principle of the siphon tube, the water receiving bucket is made to move periodically and vertically, the liquid scraping device outside the condensation tubes is driven by the pulley set, the driving magnet and the driven magnet to carry out the periodic liquid scraping operation, a condensate liquid film, liquid drops and adsorbed impurities on the outer surfaces of the condensation tubes are scraped, the heat transfer resistance of the condensation tubes is effectively reduced, and the heat transfer and condensation efficiency is increased.

The invention relates to a warhead dismantling device and method. The warhead dismantling device comprises a power device, an armor penetration tool, a warhead support and a cut-off tool. The armor penetration tool and the cut-off tool are distributed on the two sides of the warhead support. The cut-off tool is provided with an inner hole matched with warheads. The warhead support is provided with a warhead passing channel used for orienting the warheads. The armor penetration tool can reciprocate in the warhead passing channel in the warhead support under the effect of the power device, and cooperates with the cut-off tool and the inner hole to dismantle the warheads in the reciprocating process. The warhead dismantling device and method has the beneficial effects that firstly a warhead is oriented through the warhead support, the armor penetration tool, the cut-off tool and the inner hole in the cut-off tool are matched to dismantle the warhead, an armor, a lead sleeve and a steel core of the warhead can all be well separated in the dismantling process, and therefore the problem that in the prior art, warheads are hard to dismantle is effectively solved, the warhead dismantling device is simple in structure, stable in using performance and low in manufacturing cost, and subsequent maintenance is quite convenient.

The invention discloses scissors for an automatic shearing device. The scissors comprise scissor bodies, two connection rods, a push-pull rod and a compression spring. The scissor bodies are providedwith a first blade part and a second blade part, wherein the first blade part and the second blade part are opened and closed in an interlaced mode, the first blade part is connected with a first cutter handle, the second blade part is connected with a second cutter handle, and the connection part of the first blade part and the first cutter handle and the connection part of the second blade partand the second cutter handle are hinged mutually, and meanwhile, hinged and fixed to a machine frame. One ends of the two connection rods are hinged mutually and hinged to the tails of the first cutter handle and the second cutter handle, and the two connection rods and the first cutter handle as well as the second cutter handle form a four-connection-rod mechanism. The push-pull rod is connectedwith the hinge position of the two connection rods, and the push-pull rod provides reciprocating telescopic force in the axial direction of the push-pull rod. The outer surface of the push-pull rod issleeved with the compression spring, and the compression spring provides elastic force for enabling the push-pull rod to be close to the direction of the scissors. Simplex tensile force is transformed into cutter edge shearing force in two opposite directions by adopting the scissors, the equipment cost is low, the structure is reliable, and various kinds of silk-shaped pieces can be sheared offconveniently.

The invention relates to the technical field of traditional Chinese medicine nursing, in particular to an acupoint pressing device for traditional Chinese medicine nursing, which comprises a first roller and a second roller, the first roller and the second roller are respectively arranged at the top of a base through a bracket, and the first roller and the second roller are arranged in parallel in the same horizontal plane; the conveyor belt is flexibly arranged and surrounds the first roller and the second roller, and a foot fixing belt is arranged at the top of the conveyor belt and used for binding and fixing the feet of the user; the electromagnetic point pressing device is arranged between the first roller and the second roller through a support, and a point pressing head which longitudinally reciprocates is arranged at the top of the electromagnetic point pressing device; and the electromagnetic point pressing device is electrically connected with the controller. Point pressing is conducted on the sole acupoints of a user through the conveying belt and the electromagnetic point pressing device, and therefore the traditional Chinese medicine acupoint nursing requirement is met.

The invention relates to the technical field of auxiliary equipment of charging systems, and discloses an automatically-controlled screen cleaning device used for a charging system. The automatically-controlled screen cleaning device used for the charging system comprises a shell, wherein a working screen is arranged in the shell, photoresistors are fixedly connected with both sides of the working screen, piezoresistors are fixedly connected with the outer sides of the photoresistors, limiting rods are fixedly connected with both the top and the bottom of the shell, and a cleaner is fixedly connected with the inner sides of the limiting rods. According to the automatically-controlled screen cleaning device used for the charging system, through mutual cooperation of electromagnets and a permanent magnet, when the electromagnets are powered on, the electromagnets generate a magnetic field, the electromagnets and the permanent magnet repel each other due to same magnetism of opposite faces, the cleaner is driven to overcome friction resistance on the cleaner to move, primary cleaning is conducted through movement of the cleaner, an automatic product cleaning function is achieved, then movement of the cleaner is limited through mutual cooperation of the limiting rods and the cleaner, and thus the cleaner stops when moving to the other end, so that an automatic product control function is achieved.

The invention discloses cloth arrangement equipment for cloth. The cloth arrangement equipment comprises two brackets, and the two brackets are provided with guide units for conveying the cloth and cloth arrangement unit for folding the cloth correspondingly. Each bracket comprises a first installation portion and a second installation portion. Each cloth arrangement unit comprises a first rotarytable, a second rotary table, a third rotary table, a first swing rod centrifugally hinged to the third rotary able and a second swing rod extending in the vertical direction. Each first rotary table,the corresponding second rotary table and the corresponding third rotary able are in transmission connection in sequence through a conveyer belt. The upper end of each second swing rod is hinged to the corresponding first swing rod. The inner side wall of each second installation portion is provided with a hinging pillar which is connected with the corresponding second swing rod in a hinged manner so as to fix the second swing rod. The first installation portion of one of the brackets is internally provided with a drive motor for driving the corresponding first rotary table. The cloth arrangement equipment at least has the following advantages that the cloth is effectively conveyed, and the cloth is efficiently folded.

The invention belongs to the technical field of reciprocating compressors, and relates to a linear guide device of a reciprocating compressor, comprising a shell, a cylinder, a crankshaft, a connecting rod, a piston and a sealing ring. The cylinder is connected on the shell; the sealing ring is installed on the piston; the piston is installed in the cylinder; one end of a piston frame rod is connected with the piston; the crankshaft is eccentrically provided with a crank; one end of the connecting rod is sheathed on the crank and rotatably matched with the crank; the other end of the connecting rod is articulated with the piston frame rod; the piston frame rod is provided with a guide rod or a slide block for leading the piston to carry out straight reciprocating motion; and the shell is provided with a guide sleeve or a guide groove matched with the guide rod or the slide block. The invention ensures that the piston of a compressor makes straight reciprocating motion and reduces smacking motion or circulating swing motion of the piston for the cylinder due to the swing of the connecting rod, thereby effectively reducing the noise of the compressor and prolonging the service life of the compressor. The invention is suitable for compressors or pumps such as a hydraulic pump, a water pump, a vacuum pump and a cold air pump.

The invention discloses a strip high-vacuum cathode arc target device. A vacuum chamber is used for placing the strip high-vacuum cathode arc target device; the device comprises a main support frame,an anode, a cathode target, a shielding electrode, a first shielding ring, a permanent magnet, a triggering electrode and a rotating part; the rotating part is mounted on the main support frame, is fixedly connected with the cathode target, and is rotated; the anode is connected with the main support frame; the first shielding ring is fixed on the anode for shielding the cathode target and the vacuum chamber; the shielding electrode wraps the cathode target; the permanent magnet is arranged in the cathode target; and the triggering electrode is mounted on the shielding electrode, and is electrically connected with a triggering power supply. The strip high-vacuum cathode arc target device realizes stable and reliable arc light discharge under high vacuum, meanwhile, greatly reduces the particle spraying caused by higher temperature during arc striking, and prolongs the cathode life.

The present invention provides a manpower tricycle which comprises a frame, a pedal mechanism, a driving mechanism, a front wheel and two rear wheels. Two side edges of the pedal are respectively connected with the front supporting rod and the driving mechanism through front and rear arms; and the driving mechanism comprises a grooved wheel, a rear supporting rod and a chain, and the two ends of the chain are fixedly connected with fixing points of the rear supporting rod and the rear arm respectively and wound on the grooved wheel and the small fly. According to the tricycle with the structure, a user can walk on lower steps, continuous driving is achieved in a small-amplitude moving mode, and physical output is greatly reduced; and moreover, the legs of the user do not need to be stretched greatly, the free control space is large, reciprocating pedaling is facilitated, and riding of the user is not affected. The driving force is alternately provided by the two rear wheels, so that the stable operation of the bicycle is ensured. Meanwhile, by arranging a sliding block mechanism or a reset spring, an auxiliary pedal is reset, the operation difficulty is reduced, and a folding mechanism is designed so that a user can conveniently carry and store the tricycle.