734results about How to "Realize reciprocating motion" patented technology

The invention relates to a scratching and corrosive wear test device, in particular to a high-temperature high-pressure in-situ scratching and corrosive wear test device. The device solves the problems that in-situ single-time scratching, reciprocating multiple-time corrosive wear and the like are difficult to realize under the high-temperature and high-pressure environment in the prior art. The device is provided with a frequency converter, a motor, a high-pressure kettle, a control cabinet, a double-upright-post fixed bracket, a moving shaft, a scratching head and the like, can perform in-situ single-time scratching, reciprocating multiple-time corrosive wear research on the surface of a test sample at high temperature and high pressure, and can detect a signal, which represents the process of a test sample surface membrane changed from damage to passivation in the scratching or corrosive wear process, by cooperating a high-temperature high-pressure reference electrode and a high-temperature high-pressure working auxiliary electrode which are arranged on the high-pressure kettle, with an electrochemical working station.

The invention relates to a sweeping device which comprises a guide rail assembly, scraping knife carts and a drive mechanism, wherein the guide rail assembly is composed of at least two rails fixedly arranged on the two sides of a photovoltaic panel assembly in parallel, the scrapping knife carts are symmetrically arranged on the rails on the two sides of the guide rail assembly in a sliding mode, and the drive mechanism is connected with the scraping knife carts and drives the scraping knife carts to conduct reciprocating motion on the guide rail assembly. The scraping knife carts symmetrically arranged on the rails on the two sides of the guide rail assembly are connected with the two ends of a scraping knife respectively. When the drive mechanism drives the scraping knife carts to conduct reciprocating motion on the guide rail assembly, the scraping knife carts located at the two ends of the scraping knife tightly press the cutting edge portion of the scraping knife to the surface of the photovoltaic panel assembly. Compared with the prior art, the scraping knife carts can be driven by the drive mechanism to drive the scraping knife to conduct reciprocating motion on the surface of the photovoltaic panel assembly so as to sweep the surface of the photovoltaic panel assembly, and in this way the generating efficiency of the photovoltaic panel assembly is improved.

The invention relates to an automatic sampling device of a low-pressure gas sample and a use method thereof; the device of the invention comprises a shell, the internal part of which is provided with an air path system and a circuit system, and is characterized in that: the air path system comprises a sample air path system and an air path system; wherein, the air path system supplies power to the reciprocating motion of an air cylinder in the sample air path system; the sample air path system comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a first T-cock, a second T-cock, a cross fan, a vacuum pump, a pressure sensor, a sampling can and a compression component; the air path system comprises a first three-way electromagnetic valve, a second three-way electromagnetic valve and an air cylinder; the compression component of the sample air path system is connected with the air cylinder of the air path system by a piston connecting rod; the circuit system comprises a single-chip microprocessor control unit and is electrically connected with the sample air path system and the air path system. The device and the method of the invention can be widely used for automatic sampling of a gas chromatograph, preventing the environment from causing pollution to the measured gas sample effectively.

The invention provides equipment used for municipal gardens and integrating scarification, sowing and soil covering. The equipment comprises two supporting plates, two wheels are fixedly connected with the bottom of each supporting plate, a first installation plates is fixedly connected between the tops of the supporting plates, and a movable through groove is formed in the first installation plate; supporting blocks are fixedly connected with the tops of the supporting plates and provided with first grooves with upward openings, limiting holes are formed in the side walls of the supporting blocks, adjusting plates are arranged in the first grooves, a plurality of adjusting grooves are formed in the adjusting plates, and limiting holes are connected with the adjusting grooves through limiting columns. Through holes are formed in the adjusting plates and internally provided with supporting columns, a reciprocating device is fixedly connected between the two supporting columns and comprises a reciprocating frame, and a through groove with a rectangular section is formed in the reciprocating frame. The equipment integrates scarification, sowing and soil covering, effectively reduces labor investment and has certain application and popularization value.

A high-efficiency spraying device for disinfectant on a building construction site, comprising a car body, a driving motor is fixedly installed on the top of the car body, a driving bevel gear is fixedly installed on the stirring shaft, a runner is fixedly installed coaxially on the left end of the driven shaft, and the runner A connecting rod is hinged on the edge of the left side; the upper side of the lifting block is connected with the first steel wire rope, and the end of the first steel wire rope away from the lifting block is fixed on the upper slider; the rotation type in the car body is equipped with a limit pulley, and the lower end of the lifting block is connected with the second steel wire rope , the second steel wire rope is wound on the limit pulley, and the right end of the second steel wire rope is fixed on the limit baffle; the water drawing sleeve is connected with a liquid outlet hose, and the first one-way hose is installed on the liquid outlet hose. Valve, the invention has ingenious structure and reasonable design. Through the up and down reciprocating movement of the lifting block, the up and down reciprocating movement of the nozzle and the fan is realized, so that the up and down spraying range of the disinfectant is wider, the distance is longer, and the disinfection and sterilization effect is better.

The invention relates to a piezoelectric actuator, in particular to an inner driving type passive clamping piezoelectric actuator. The problems that according to an existing inner driving type clamping piezoelectric actuator, self locking cannot be achieved during outage, a driver is slow in running speed, and requirements for machining accuracy of a clamping body and a guiding track are high are solved. The inner driving type passive clamping piezoelectric actuator comprises a guiding track, driving bodies, a driving piezoelectric stack, two clamping piezoelectric stacks and two clamping bodies. Each clamping body comprises a piezoelectric stack pre-tightening piece, two clamping triangle amplified flexible hinges, two clamping piezoelectric stack supporting bodies and two clamping heads. Each driving body comprises two driving triangle amplified flexible hinges, two driving piezoelectric stack supporting bodies and two driving piezoelectric stack pre-tightening pieces. The driving bodies connected with the clamping bodies are arranged between the two clamping bodies. The driving bodies and the clamping bodies are placed in grooves of two arms of the guiding track. The piezoelectric actuator is used in a micro-driving process.

Belonging to the technical field of test equipment, the invention provides an abrasion resistant test machine for cattle leather, and solves the problem that abrasion resistant test cannot be carried out on cattle leather effectively in the prior art. The abrasion resistant test machine for cattle leather consists of a machine body and a workbench. The workbench is provided with a clamping mechanism, the clamping mechanism comprises a mounting panel, a clamping block 1 and a clamping block 2. The mounting panel is provided with a mounting groove, in which a heating piece is fixed. The clamping block 1 is provided with an adjustment hole 1, a positioning bolt 1 is disposed in the adjustment hole 1, the lower end of the positioning bolt 1 is equipped with a positioning block 1, the clamping block 2 is provided with an adjustment hole 2, a positioning bolt 2 is disposed in the adjustment hole 2, the lower end of the positioning bolt 2 is provided with a positioning block 2, a slide rail 1 and a slide rail 2 are fixed on the workbench, the slide rail 1 and slide rail 2 are equipped with a sliding block 1 and a sliding block 2. The workbench is provided with a driving mechanism and a friction test device. The abrasion resistant test machine for cattle leather provided by the invention has the advantage that it can carry out abrasion resistant test on cattle leather more efficiently.

The invention discloses a full-automatic integrated air column bag packaging machine. The full-automatic integrated air column bag packaging machine comprises a rack, wherein a winding roller and a redirection roller are rotatably installed on the top of the rack, the winding roller is positioned on the front side of the redirection roller, the winding roller is parallel to the redirection roller, an air column bag clamp is installed on the lower part of the rack, the end of an air column bag bypasses the redirection roller and then is clamped by the air column bag clamp, a block pushing mechanism is installed on the front side of the rack, both the winding roller and the redirection roller are positioned above the block pushing mechanism, the block pushing mechanism is positioned above the air column bag clamp, a vertical pressing heat sealing device and a transverse pressing heat sealing cutting device are installed on the rear side of the rack, and the transverse pressing heat sealing cutting device is positioned between the redirection roller and the vertical pressing heat sealing device. The full-automatic integrated air column bag packaging machine has the advantages of reasonable structural design, rapidity and convenience in packaging, high packaging efficiency, stability and reliability in block pushing, attractive appearance and environmental friendliness of packaging materials, the problem of heavy workload caused by manual packaging is solved, an accurate positioning function is realized, and the system safety is increased.

The invention belongs to the technical field of a compressor, and more particularly relates to a spin-orbit-type reciprocating piston compressor which comprises an air cylinder, a piston and a connecting rod, and is characterized by being provided with a rotor, a sliding seat, a plurality of sliding blocks and thrust pins; wherein the rotor is provided with a spin orbit, the sliding seat is provided with a plurality of sliding rails parallel to the axes of the rotor, the sliding blocks are matched with the sliding rails in a sliding or rolling way, one end of the thrust pins is connected withthe sliding blocks, and the thrust pins move along the sliding rails together with the sliding blocks; the other end or middle end of the thrust pins can be matched with the spin orbit and correspondingly driven to move along the work molded surface of the spin orbit; one end of the connecting rod is connected with the piston, and the other end thereof is connected with the sliding blocks; as thespin-orbit structure is adopted to realize the reciprocating motion of the piston, a crankshaft and connecting rod mechanism of the traditional compressor can be eliminated, the spin-orbit-type reciprocating piston compressor carries forward the advantage of compact structure of a swash plate compressor, and is flexible in layout, so as to further realize the design of large delivery capacity of the compressor, and more importantly control the reciprocating motion law of the piston.

The invention discloses a rapid cooling device for a computer mainframe box. The rapid cooling device comprises a base, two vertical damping rods are fixedly mounted at the top of the base, horizontal damping plates are slidably mounted on the damping rods and sleeve the damping rods, springs are mounted on the damping rods in a sleeving manner, the tops and the bottoms of the springs are fixedly connected with the corresponding damping plates and the base, damping blocks are fixedly mounted at the top of the base, vertical fixed rods are fixedly mounted at the tops of the damping blocks, vertical sliding rods are slidably mounted in the middles of the tops of the fixed rods, the tops of the sliding rods are fixedly connected with the damping plates, and damping cavities are formed in the fixed rods. By means of double damping, the shock resistance effect of a device body is greatly improved, transportation and use of the computer mainframe box are facilitated, a computer mainframe can be cooled within a wide range by one fan, cooling uniformity is ensured, and the use performance of a computer is improved.

The invention discloses a fully-automatic enteric capsule production line and belongs to the technical field of capsule production equipment. The fully-automatic enteric capsule production line comprises a platform machine, an automat, an oiling machine, a glue dipping machine, a waste material absorbing system, an upper baking channel, a lower baking channel and a main control system, wherein an air supply pipeline and an air returning pipeline are arranged on the lower baking channel at an interval; two coating machines are also arranged on the lower baking channel at an interval and are respectively arranged in separating spaces; the separating spaces are connected with a vacuum pumping device. The coating machines are arranged in the sealed separating spaces, and the vacuum pumping device absorbs volatile substances in coating liquid, so that the volatile substances are prevented from being dispersed into a workshop to cause explosion in case of open flame. A capsule produced by the fully-automatic enteric capsule production line satisfies enteric standards, the wall thickness of the capsule is uniform, and the quality of the capsule is good.

The present invention relates to solvent extracting process as industrial wet process phosphoric acid purifying process. On the basis of technological process of preparing industrial phosphoric acid with wet process phosphoric acid, the present invention has the measures of: 1) setting desulfurizing and defluorinating buffer in the pre-treating section and setting one re-desulfurizing and deferrizing tank between the extracting tank and the washing tank for reinforced desulfurizing, defluorinating and deferrizing; 2) performing extraction, washing and reverse extraction in the rotary vibrating sieve-plate tower; and 3) setting one demulsifying tank between the washing tower and the reverse extracting tower. The present invention has one special rotary vibrating sieve-plate tower developed as the key apparatus. The present invention is used in the industrial production of purifying wet process phosphoric acid and has greatly reduced loss and low cost.

The invention discloses a three-dimensional printing molding device for rubber powder by microwave sintering. The three-dimensional printing molding device comprises a heating unit, a powder laying unit and a control unit, wherein the heating unit comprises a microwave coagulator and a microwave coagulator driving part; the powder laying unit comprises a powder box, a powder box driving part, a working platform and a compression roller; the compression roller comprises a roller body and a center shaft supporting frame; the compression roller driving part comprises an ordinary alternating current motor, a gear A, a gear B, a toothed belt, a toothed belt wheel A and a toothed belt wheel B. According to the three-dimensional printing molding device for the rubber powder by the microwave sintering, disclosed by the invention, the rubber powder is heated by microwave, and the uniform powder laying and the timing heating can be realized; the device is reasonable and simple in structure; important driving devices adopt a mode of driving a roller screw by a stepper motor, so that the molding precision is high, and controllable molding of a three-dimensional complex model of the rubber powder is realized. According to the three-dimensional printing molding device for the rubber powder by the microwave sintering, disclosed by the invention, the molding method of the rubber powder is enlarged; meanwhile, novel three-dimensional sintering molding equipment is provided.

The invention discloses a screed plate compaction beam, a screed plate and a paver. The screed plate compaction beam comprises a driving shaft, a cam, a transmission rod and a transmission rod resetting mechanism. The driving shaft is connected with a driving motor; the cam is sleeved on the driving shaft and is coaxially linked with the driving shaft; the upper end of the transmission rod is contacted and connected with the peripheral wall of the cam, and the lower end of the transmission rod is fixedly connected with a cutter blade; and the transmission rod resetting mechanism is used for tightly pressing the upper end of the transmission rod onto the cam. According to the screed plate compaction beam, when a bulge part rotates to the transmission rod when the cam rotates, the transmission rod is extruded and the cutter blade is driven to move downwards; and when the bulge part rotates away from the transmission rod, the transmission rod is reset, the cutter blade is driven to move upwards, vibratory pulse is produced, and the back-and-forth movement of the screed plate compaction beam is realized. Compared with an existing hydraulically driven screed plate compaction beam, according to the screed plate compaction beam, the structure is simpler, so that the cost is lower on the one hand, and the detachment and the post repairing of the equipment are convenient on the other hand.

The invention discloses a hydraulic impactor. Pressure difference formed between the upper end and the lower end of an impacting body by drilling fluid flowing inside an impactor body achieves guide effects on the impacting body and meanwhile enables the impacting body to move axially and reciprocatingly, and a throttle device and an impact transfer device can transmit impact force generated by the impacting body to a drill bit, so that the impacting body can exert the impact force at a certain frequency onto the drill bit. Compared with an existing hydraulic impactor, the hydraulic impactor omits a reversing unit, a working valve and a driving device, thereby being simple in structure and high in use reliability.

The invention discloses a continuous type pad printing and coding device. The continuous type pad printing and coding device comprises a workbench, a PLC controller and a pad printing machine. The continuous type pad printing and coding device further comprises a laser coding machine, a conveying component and a drying component. The conveying component comprises a motor, a transmission case, a main chain wheel, a chain and an auxiliary chain wheel. The chain is fixedly provided with multiple fixing seats. Locating blocks are connected to the fixing seats. Brackets are connected to the locating blocks, and the brackets are provided with mold grooves. The side wall of the transmission case is provided with a pad printing locating piece and a coding locating piece. Each locating block is provided with a left groove and a right groove. One end of the transmission case is provided with an infrared sensor. A motor shaft of the motor is sleeved with a wheel disk. Three sensing columns are distributed on the wheel disk. The infrared sensor, the pad printing machine and the laser coding machine are electrically connected with the PLC controller. The continuous type pad printing and coding device conducts continuous pad printing and coding operations on printed objects on a large scale and greatly improves the production efficiency; and pad printing and coding are clearer, the precision is high, the manufactured products are free from fading after being used for a long time and high in recognition capacity.

The invention relates to a deflecting optical wedge scanning device. The device comprises an optical wedge and picture frame assembly, an angle encoder, a horizontal rotating shaft, a working table and a driving control system, wherein the optical wedge and picture frame assembly consists of a wedged cushion block, an optical wedge, an elastic block, an optical wedge pressing plate, a picture frame and an O-shaped washer; the horizontal rotating shaft is divided into a left section and a right section which are positioned on the two sides of the picture frame respectively; the right end of the right section of the horizontal rotating shaft is fixed with the angle encoder; a first module consists of a linear motor, a horizontal guide rail, a horizontal slide block, a horizontal connecting block, a cover plate and a grating ruler; a second module consists of a double end threaded stud, a joint bearing and a single end threaded stud; a third module consists of a vertical guide rail, a vertical slide block, a picture frame connecting plate and an L-shaped plate; and the driving control system consists of a computer, an input / output control circuit, a step motor driver and a signal processing and control circuit, and can realize open loop or closed loop control. In the device, small-angle precise swinging of the optical wedge device is realized through traction of the slide block, so the motion control accuracy is improved. The device can be individually used or two devices can be combined for use, so the requirements of scanning and positioning in different directions can be met.

The invention discloses a continuous transfer-printing coding method. The continuous transfer-printing coding method comprises the following steps: step (a) inking an etching plate by using a sealed oil cup of a transfer-printing coding device; step (b) forwards pushing a rubber head of a transfer printing machine to the upper portion of the etching plate, subsequently driving the rubber head to move down to have contact with the etching plate, and downwards pressing the rubber head to make the rubber head be stained with ink with patterns; step (c) backwards pushing the rubber head to a transfer printing work position, and then driving the rubber head to be pressed downwards so that the rubber head is capable of printing the ink with patterns on a to-be-printed object inside a mold groove; step (d) moving the transfer-printed object to a drying work position for drying by using a conveying component; step (e) moving the transfer-printed and dried object to a coding work position and coding the transfer-printed and dried object by using a laser coding machine. The continuous transfer-printing coding method disclosed by the invention is capable of realizing continuous operation on large-batch to-be-printed objects and improving the production efficiency; the patterns are clearer after the printed objects are dried at the drying work position; a coded product is high in exquisite degree and is fadeless after being used for a long time.

The invention relates to a leechee enucleating and peeling machine which includes the delivering and locating mechanism, enucleating mechanism, peeling mechanism and driving device; it can complete delivering, locating, enucleating, peeling and retreating at the same time by only one set of power so that it does slight damage to the sarcocarp during processing with a low loss rate;the cutter axis can make rotary motion and reciprocation motion at the same time; the device with very simple structure works very smoothly; what's more, the number of the enucleating and peeling devices can be changed freely and several devices can be drived by one set of power so that the device can meet the processing needs of different scales.

The invention relates to the field of smoke treatment devices, in particular to a dehydrating tower provided with an anti-blocking plug. The dewatering tower comprises a fixed sleeve, a tower body, adehydrating structure, a smoke discharging structure, a sealing structure, a fixing structure, an anti-blocking structure and an anti-explosion structure. Since the dehydrating structure is arranged inside the tower body, smoke with high humidity and low temperature can be subjected to inflow dehydrating treatment, moisture and harmful tiny substances in the smoke can be removed, and the smoke discharging quality is improved beneficially; by arranging the smoke discharging structure outside the tower body, natural wind energy can be effectively utilized, the smoke discharging efficiency of a smoke outlet pipeline is improved, fuel combustion is more sufficient, and therefore waste of resources is reduced; during work of the smoke discharging structure, the anti-blocking structure can be driven to work simultaneously; through the arrangement of the anti-blocking structure, soot which adheres to the side wall inside the tower body can be cleared up in time; and the work of the anti-blocking structure can perform reaction on the smoke discharging structure, so that the working efficiency of the smoke discharging structure is higher.

A rail-type reciprocating conveying trolley comprises a left guide rail, a right guide rail, a trolley body, a mooring anchor point, a pulley and a power device, wherein the left guide rail and the right guide rail are fixed to the ground in parallel, the trolley body is arranged on the left guide rail and the right guide rail through trolley wheels in a rolling mode, the mooring anchor point is fixed to the rear end of the left guide rail and the rear end of the right guide rail, the pulley is installed on the mooring anchoring point through a lug base, and the power device is arranged at the front end of the left guide rail and the front end of the right guide rail. One end of a steel wire rope I is fixed to the front side of the trolley body and the other end of the steel wire rope I is fixed to the power device. One end of a steel wire rope II is wound around the pulley and fixed to the rear side of the trolley body and the other end of the steel wire rope II is fixed to the power device. The power device drives the steel wire rope I or the steel wire rope II to move. The power device drives the steel wire rope I to pull the trolley body to move forwards along the left guide rail and the right guide rail. When the trolley body moves to the forefront end, the power device drives the steel wire rope II to operate; after the steel wire rope II is wound around the pulley, the trolley body is pulled to move backwards, and therefore reciprocating movement of the trolley body is achieved. Efficiency is improved, and manpower is saved.

The invention provides a thin film packaging machine, and belongs to the technical field of packaging machines. The technical problems such as complicated structure and poor universality of the existing packaging machine are solved. The thin film packaging machine comprises a base, a support fixed to the base, and a conveying belt arranged on the support, wherein a film unwinding roller with a thin film is fixedly arranged on the support; the thin film is folded by a folding device and then is adhered to the conveying belt; the base is also provided with a longitudinal heat-sealing device capable of sealing the edges of the folded thin film; a discharging device is arranged between the longitudinal heat-sealing device and the folded thin film; and a transverse heat-sealing device capable of transversely sealing the thin film after longitudinal edge sealing is arranged between the base and the thin film after edge sealing. The thin film packaging machine has the advantages of being simple in structure, good in universality, and the like.

The invention discloses a self-cleaning vibrating cloth bag dust collector, which comprises a dust removal box body, a cleaning box body is fixed on the top of the dust removal box body, horizontally distributed cloth bag fixing frames are vertically fixed on the side wall of the dust removal box body, the dust removal box body and cleaning The boxes are separated by a cloth bag fixing frame. The bag fixing frame is sealed and fixed with a dust removal bag. The bag support frame is set in the dust removal bag. The air inlet channel is fixed at the entrance of the flue gas, the bottom of the dust bag is fixed with a first snap ring, the outer surface of the side wall of the dust removal box is covered with a fixed bearing ring, and the bottom of the bearing ring is vertically and evenly distributed with four supporting columns , a motor is fixed on the surface of the bearing ring. The present invention is provided with a vibrating frame, which is connected to the dust-removing cloth bag through a buffering and pulling mechanism, and the reciprocating motion of the vibrating frame drives the reciprocating vibration of the dust-removing cloth bag, and the vibration amplitude is relatively large, which can safely realize the self-cleaning ability of the dust-removing cloth bag.

The invention belongs to the technical field of organic fertilizer production, in particular to a liquid organic fertilizer production fermentation device, which comprises a fermentation tank, a heatpreservation device, a stirring device and a power device. On the one hand, the stirring device is driven by the power device, and a stirring spring in the stirring device makes a rotary motion to drive a stirring module to fluctuate up and down to stir a fermented material; meanwhile, a pneumatic module in the stirring device moves to enhance the stirring effect and drive a synchronous pulley inthe power device to move left and right, and the synchronous pulley moves left and right and then drives the stirring spring in the stirring device to move left right to enhance the stirring effect; on the other hand, the stirring module in the stirring device heats the fermented material, and the heat preservation device wraps the fermentation tank to provide the fermentation tank with a suitabletemperature required by fermentation, the wall of a through hole in the stirring module is curved, thereby increasing the contact area to accelerate heat dissipation, and mixed liquid in the fermentation tank flows through the through hole to generate a shock fermentation process, thereby improving the production efficiency.

The invention discloses a mechanical pineapple peeling machine which comprises a machine frame. A positioning clamp and a black core removing structure are arranged on the machine frame. Two opposite pineapple insertion tables are arranged on the opposite sides of the machine frame. One pineapple insertion table is telescopic and is connected with a gear shifting mechanism through a main transmission mechanism, the gear shifting mechanism is connected with a handle and a black core removal transmission mechanism, the main transmission mechanism is connected with a peeling transmission mechanism, the peeling transmission mechanism is connected with a lead screw a, the lead screw a is connected with a peeling adjustable cutter, the positioning clamp and the peeling adjustable cutter are located between the two opposite pineapple insertion tables, the black core removal transmission mechanism is connected with the black core removing structure, and the black core removing structure is opposite to the peeling adjustable cutter. The mechanical pineapple peeling machine completes the peeling step and the black core removing step through one-time clamping, and pineapple peeling efficiency is greatly improved.

The invention relates to an escapement-type escape device for high-rise buildings, comprising an escapement and a vibration system, wherein the escapement comprises a ratchet wheel and a pawl; a principal shaft penetrates through the central hole of the ratchet wheel; the pawl is connected with two sides of the ratchet wheel by a hinge pin; the vibration system comprises a flywheel, a torsional spring and a driving plate; the flywheel is in power link with the ratchet wheel by the pawl; the torsional spring winds at the central shafts of the flywheel and the driving plate; the driving plate is in power link with the principal shaft by the pawl; a rope is nested in a rope groove of the principal shaft; and a pressing wheel is fixed outside of the ratchet wheel by a pressing wheel frame. Stopping and moving movement with fixed descending period of people is realized by the escapement vibration system with constant period and continuous vibration and ultimately the highest descending speed of people is controlled. The escape device has the advantages of small volume, low manufacturing cost and low manufacturing technology difficulty and the characteristics of controllable slow descending speed, reciprocating motion, convenience for installation and the like.

The invention provides a space cam for a slot machine transmission mechanism. An advancing spiral groove and a returning spiral groove are formed in the outer circumferential wall of a cam body and opposite in rotating direction and communicate with each other at the intersection of two ends. A stepped outer circumferential wall at one end of the cam body makes contact with a cam follower I arranged on a cutter bar shaft seat, and an arc-shaped protrusion is formed on a stepped outer circumferential wall at one end of the cam body. The advancing spiral groove and the returning spiral groove are matched with the cam follower fixed to a cutter bar shaft. A rotating shaft fixedly connected with the cam body drives the cam body to rotate so that the cam follower moves along the advancing spiral groove and the returning spiral groove to realize linear reciprocating motion of the cutter bar shaft afterwards. The space cam greatly simplifies a conversion structure of rotary motion and linearreciprocating motion; the arc-shaped protrusion acts on the cam follower I to finish the periodic swinging of cutter receding during slot processing; and the space cam is convenient and fast to install, small in occupied space and high in working reliability and use value.

The invention provides a plunger pump and a hematology analyzer with the plunger pump. The plunger pump comprises a base, and a screw component and a pump body component arranged on the base, wherein the screw component comprises a power element, a screw driven by the power element to act and a driving nut arranged on the screw; the pump body comprises a negative pressure pump body and a piston which reciprocate along the negative pressure pump body so as to provide positive pressure or negative pressure; the piston is connected with the driving nut and is driven by the driving nut to do reciprocating motion; and the piston is directly connected with the driving nut through the plunger pump and the hematology analyzer with the plunger pump, so that the piston can do reciprocating motion in the negative pump body through the driving of the driving nut so as to provide the positive pressure or negative pressure according to needs; a complex and large transmission mechanism is not needed, so that the structure is simplified; and the screw component stability is high, the high-precision positioning can be performed in the movement process, and the high-precision transmission is realized.

The invention provides a track-deformable robot moving platform for a dangerous hazard site environment. The track-deformable robot moving platform for the dangerous hazard site environment comprisesa robot body, two passive self-adapting track modules and an information acquiring module, wherein each passive self-adaptive track module comprises a track, a passive self-adapting mechanism, four fixing supporting frames, three track driven wheels, four track bearing wheels and a track driving wheel; the fixing supporting frames are inverted Y-shaped frames, and every two fixing supporting frames form a group, and the two fixing supporting frames in each group are leftwards and rightwards symmetrically connected through corresponding connecting shafts; two track bearing wheels are correspondingly fixed to two end parts of Y shapes of the lower parts of the fixing supporting frames in each group through the corresponding connecting shafts; and one track driven wheel is fixed to the upperpart of each of the fixing supporting frames in each group through the corresponding connecting shaft. According to the moving platform, the shape of the tracks can be flexibly passively changed basedon the size of a barrier in the environment, and the contact area between the track and the barrier can be increased, and thus the barrier crossing capacity of the moving platform is improved.

The invention discloses electric intelligent hoisting equipment suitable for an attached lifting scaffold. The electric intelligent hoisting equipment comprises an electric power box arranged on a ground scaffold reinforcing frame, an anti-falling and anti-overturning device arranged outside each floor, a circulating device arranged outside the floor above the scaffold, and an intelligent electric control device arranged on the ground scaffold reinforcing frame and used for controlling the electric power box to run. The electric intelligent hoisting equipment is simple in structure and convenient to use, cyclic reciprocating motion of hoisted objects and the hoisting equipment can be achieved, the manual operation amount is reduced, mechanical automatic operation is achieved, and the electric intelligent hoisting equipment is suitable for hoisting and operation of light equipment working in a reciprocating mode multiple times.