221results about How to "Run sync" patented technology

The invention relates to a miniature hydraulic garage, comprising two layers on the ground, wherein each layer has two spaces. The garage is simple lift type solid parking equipment with independent structure and control. The garage comprises a support mechanism, front and rear parking boards, a lifting arm mechanism, a dynamic control mechanism and a steel wire synchronous mechanism. The steel wire synchronous mechanism realizes synchronization of two lift cylinders; the parking boards are in horizontal state when on the ground, so that parking is convenient, while the parking plates are lifted, the parking space for the next space is increased. The garage adopts self-locking of a connecting rod type lifting arm instead of a safe hook, when the parking board is lifted to a right position, the included angle between the connecting rod and the lifting arm exceeds 180 degrees to form self locking. The miniature hydraulic garage has the characteristics of more convenient vehicle storage and pickup and simpler operation, has safer and more reliable structure, and can meet the requirement of different users.

The invention discloses an automatic grinding processing production line of a magnetic tile, which comprises an automatic charger, a single station grinding machine, a parallel surface grinding machine, a four-station automatic chamfering grinding machine and a four-station through type tile form magnet grinding machine. The automatic grinding processing production line of the magnetic tile is characterized by comprising a first magnetic tile steering mechanism and a second magnetic tile steering mechanism which rotate magnetic tiles of 90 degrees; in the production line, the automatic charger, the single station grinding machine, the first magnetic tile steering mechanism, the parallel surface grinding machine, the second magnetic tile steering mechanism, the four-station automatic chamfering grinding machine, the four-station through type tile form magnet grinding machine and a washer are sequentially arranged and connected, and flexible seamless connection is adopted among apparatuses. By the production line, the number of labors on a magnetic tile production line can be decreased, the production efficiency is improved, and the labor intensity of workers and the production costof the magnetic tile are reduced.

The invention relates to a basic programming system (BPS) automatic deflection correction method and a BPS automatic deflection correction system for a crane cart. Left and right guide rails are provided with a bar code strip respectively; corresponding bar code readers are arranged on a cart frame; and a control unit acquires and compares the numerical values read by the readers on two sides in time, judges whether the travels of driving wheels on left and right sides of the cart are synchronous, automatically adjusts the driving wheels on two sides by reducing the rotation speed of the driving wheel on the front side or increasing the rotation speed of the driving wheel on the rear side if the driving wheels are not synchronous, and keeps the two driving wheels are in the same bar code section. Whether the travelling wheels on two sides are deflected and the deflection degree can be judged accurately and timely, and a control circuit can give an instruction for adjusting the rotation speed of a driving motor timely, so that the reliability is high. The deflection detection accuracy of the crane cart is high, so that the deflection can be corrected accurately under the condition of curves and slopes. Moreover, a BPS system has the advantages that: the BPS system has a Proibus function and low cost and can configure with a programmable logic controller (PLC) freely; and the measurement distance can reach 10,000 meters.

The invention discloses a four-freedom-degree vehicle carrier for three-dimensional parking equipment and belongs to the technical filed of mechanical parking devices. The four-freedom-degree vehicle carrier comprises a cantilever support above a top-layer parking space, the cantilever support comprises two oppositely-arranged cantilever longitudinal beams and two oppositely-arranged cantilever cross beams, and the cantilever longitudinal beams and the cantilever cross beams are arranged in a rectangular mode. A transversely-moving mechanism driven by a first power plant is arranged on the cantilever support in a transversely-moving mode, and a longitudinally-moving mechanism driven by a second power plant is arranged on the transversely-moving mechanism in a longitudinally-moving mode. The longitudinally-moving mechanism is provided with a lifting transmission mechanism which is driven by a third power plant and capable of lifting in the vertical direction, and the lifting transmission mechanism is connected with a grabbing rotary mechanism which is driven by a fourth power plant and capable of rotating around a vertical axial line and used for grabbing lifting vehicle platforms. The four-freedom-degree vehicle carrier does not occupy ground space and enables arrangement of garage entrances and exits to be flexible; in the process of parking and taking vehicles, transverse moving, longitudinal moving, lifting and rotating of the vehicles and the lifting vehicle platforms can be finished at the same time, and working efficiency of parking and taking the vehicles is improved.

The invention discloses an escalator or automatic sidewalk driving device, comprising a permanent-magnetic synchronous motor and a transmission device; the transmission device comprises a primary gearbox and a secondary gearbox; an output shaft of the secondary gearbox is axially connected with a main transmission shaft. The secondary gearbox adopts a crossing engagement type of a spiral bevel gear pair structure and transmits the output torque of the primary gearbox. The solar wheel shaft of the primary planetary gearbox has the same axis as the central shaft of a driving motor; the output axis line of the secondary gearbox is vertical to the axis line of the solar wheel shaft, so as to lead the primary planetary gearbox and the secondary gearbox to be installed, debugged and dismounted in a fission way and lead the driving device to be connected at the end side of the main transmission shaft of a step chain wheel. The escalator driving device of the invention adopts a two-step full-gear transmission structure, has little mechanical abrasion, long service life and high transmission efficiency, and realizes the effects of escalator driving multi-item efficacy energy saving.

The invention provides a method for defrosting an air conditioning system. The air conditioning system comprises an indoor heat exchanger, throttle devices, an outdoor heat exchanger, a four-way valve, a compressor, a bypass circuit branch and a junction main circuit which are arranged on refrigerant circulation paths in a heating mode, wherein the compressor is connected with the indoor heat exchanger and the outdoor heat exchanger through the four-way valve; a heat accumulator is arranged on and connected with the compressor; the bypass circuit branch is connected between the four-way valve and the outdoor heat exchanger; and the junction main circuit is connected between the throttle devices and connected with the compressor by the heat accumulator. During defrosting, a refrigerant flows out of the compressor and passes through the four-way valve for bypassing, a part of the refrigerant enters the outdoor heat exchanger for defrosting through the bypass circuit branch, the other part of the refrigerant enters the indoor heat exchanger for heating, after heat exchange, the two parts of the refrigerant are subject to throttling, flow into the junction main circuit, enter the heat accumulator for heating, and then return to the compressor, so that the circulation is completed. The two parallel refrigerant circulation paths are formed in a defrosting state, so that the defrosting and continuous heating can be ensured at the same time.

The invention relates to the field of computer application technology and computer graphic images, in particular to a three-dimensional graphic rendering method based on parallel rendering technology. The method includes the steps: building a working environment of a parallel rendering system; executing load balancing calculation by a user service node; determining primitive attributes by a rendering node according to load balancing results; executing rendering tasks by the rendering node; extracting pixel data and transmitting the pixel data to an image service node; receiving the pixel data by the image service node; splicing the images; outputting the images to a projection device and displaying the images. By the aid of excellent resource scheduling strategies and job-scheduling policies, resource use rate can be furthest increased, and rendering time is saved. By the aid of rich development tools and connectors, targeted development is conveniently performed by advanced-level users. By the aid of excellent resource management functions, effective management can be implemented. The three-dimensional graphic rendering method is fine in safety, stability and reliability.

The invention discloses a lifting longitudinal-moving-type stereoscopic parking device, and belongs to the technical field of mechanical parking devices. The lifting longitudinal-moving-type stereoscopic parking device comprises a plurality of rectangular parking places arranged in an array mode. A longitudinal-moving storing and taking mechanism driven by a first power device is installed inside each parking place in a longitudinal-moving mode. A lifting truck platform is placed in each longitudinal-moving storing and taking mechanism. A cantilever support is installed above the top-layer packing place. A transverse-moving mechanism driven by a second power device is installed on the cantilever support in a transverse-moving mode. A longitudinal-moving mechanism driven by a third power device is installed on the transverse-moving mechanism in a longitudinal-moving mode. A lifting transmission mechanism driven by a fourth power device is installed on the longitudinal-moving mechanism. A grabbing swinging mechanism driven by a fifth power device is connected with the lifting transmission mechanism. According to the lifting longitudinal-moving-type stereoscopic parking device, the power devices are independent, the working efficiency of storing and taking trucks is improved, full stations are achieved, namely vacated parking places do not exist, the storage number of the trucks is increased, and the land utilization rate is improved.

The invention relates to a temper mill push-up cylinder roll gap control device and a roll gap synchronous control method. The temper mill push-up cylinder roll gap control device mainly comprises a frame, an upper roller, a lower roller, a hydraulic pipeline and a safety valve. The upper roller and the lower roller can move up and down. The temper mill push-up cylinder roll gap control device further comprises push-up hydraulic cylinders, push-up cylinder position sensors, servo valves and electromagnetic valves. The push-up hydraulic cylinders are positioned at the bottom of the frame. The push-up cylinder position sensors are directly connected with a piston of an oil cylinder to trace operating travel of the push-up cylinders. The servo valves drive the push-up hydraulic cylinders on two sides to move to control rolling force of a temper mill and deviation and inclination control of the rolling force. The electromagnetic valves drive the push-up hydraulic cylinders on two sides to move to control quick opening and closing of the rollers of the temper mill. Compared with the prior art, the temper mill push-up cylinder roll gap control device is simple and practicable, roll gap out-of-tolerance of the rollers of the temper mill can be avoided, and yield rate of continuous temper mill units can be significantly improved. Besides, the temper mill push-up cylinder roll gap control device is worthy of promotion in temper mill production lines provided with similar magnetic valve control hydraulic cylinders.

The invention provides a method and a device for eliminating shutdown impact of a vibration sieve, belonging to vibration damping method and device. The vibration sieve is connected with a fixed bottom plate by a spring and is connected with a piston rod; a piston cylinder body is connected with the fixed bottom plate; a bypass electromagnetic valve is connected between a rod chamber oil hole and a rod-less chamber oil hole in the piston cylinder body; the rod chamber oil hole is connected with a damping electromagnetic valve that is connected with one end of a first absorber and a second absorber; the first absorber is connected in parallel with the second absorber; and the other ends of the first absorber and the second absorber are connected with the rod-less chamber oil hole. The method and the device have the advantages that the impact load generated by the vibration sieve is converted into hydraulic energy; the vibration energy is moved out of a vibration source; the vibration energy is absorbed by bidirectional self-tuning of the two absorbers, so that the impact load is instantaneously converted into the heat energy that is released; and the vibration impact force generated by shutdown is not directly acted on the motor and the vibration mechanism, thus reducing maintenance quantity and failure rate.

A process for producing raw paper by thermal dye sublimation is related to the technical field of papermaking and includes: pulping coniferous wood and broad-leaved wood in a mass ratio of 15:85-30:70 through a pulper, and adding a filling material, the mass ratio of plant fiber to the filling material being 70:30-85:15; subjecting obtained pulp to pulp grinding under controlled beating degree of 25-35 degrees SR, and adding a cationic starch and a wet strength agent respectively into the pulp; performing dilution purification, web-forming and pressing, and subjecting obtained wet paper sequentially to primary drying, surface gluing, secondary drying and tertiary drying to obtain the thermal dye sublimation raw paper. Indexes of the thermal dye sublimation raw paper such as tear, uniformity, shrinkage, tensile strength and smoothness can be effectively controlled, preventing the problems occurring during use of raw paper produced by traditional process, such as picking, poor printing effect, wrinkling during printing, and proneness to breakage during printing.

The invention relates to a scutching cloth singeing machine, which comprises a cloth feeding unit, a singeing unit and a cooling fire-extinguishing unit, wherein the singeing unit comprises a machine body, and a cloth spreading device, a cooling device and a singeing fire hole which are arranged in the machine body; the cloth spreading device comprises two conduction cloth rollers arranged up and down; the cooling device comprises two cold water cylinders which are arranged up and down in a staggering mode; the singeing fire hole is positioned at the inclined underside of the cold water cylinders; an edge peeler is arranged between the cloth spreading device and the cooling device; and the machine body is also provided with a tension adjusting device. Because of the edge peeler arranged in the singeing unit, the cloth edges of knitting cloth to be singed can also be singed effectively without the problem of incomplete singeing, thus the cloth edges which are not singed are not necessary to be cut off to avoid waste, and the production cost is greatly reduced.

The invention discloses a packaging method of flat rolled toilet paper, and relates to the technical field of tissue packaging. The packaging method includes the steps of flattening, laminating, pushing packages into bags, packaging, sealing and packaging repeatedly. According to the packaging method, flattening is conducted on a paper roll twice, the paper roll is flattened and shaped completely, the situations of jumping and warping can be avoided, automatic laminating processing can be achieved, laminating packaging is completed automatically, and packaging operation is completed efficiently.

The invention relates to the technical field of hoisting equipment, and discloses a constant-pressure friction driving trolley of hanging type hoisting equipment and a method. The constant-pressure friction driving trolley comprises a hanging type trolley bearing device and a hanging type trolley driving device, wherein the hanging type trolley bearing device hung on a running rail is fixedly connected with the hanging type trolley driving device and is formed by connecting end beams clamped on two sides of the running rail with guide wheel devices and bearing wheel devices which are arranged on the end beams. Friction of running wheels is not related to the hoisting weight, the gravity and the stress, and the friction driving force of the running wheels is only related to pressure of a spring instead of being related to stress of a girder; therefore, the wheels run synchronously, and a phenomenon of rail gnawing is avoided; the service life of a motor is well prolonged; the constant-pressure friction driving trolley is small in size, light in mass, high in bearing capacity and anti-abrasion; and the problem of large noise during running is completely solved; and constant driving force is guaranteed.

The invention discloses a snow-proof external sun-shading system applied to a Venlo type multi-span glass greenhouse. An aluminum foil bubble curtain with a sun-shading rate of 70 percent is adopted, and moves along the direction of a ridge. Double-layer plastic-coated [PE / PET / PA (polyethylene / polyethylene terephthalate / polyamide)] steel wire ropes with supporting and windproof functions are adopted, and are fixedly arranged on a metal structural net rack on the roof of the greenhouse at transverse intervals of 30 to 100cm which are determined by the material of the curtain. The metal structural net rack is fixedly arranged on roof gutters, and is higher than roof glass. The aluminum foil bubble curtain for sun shading is driven to move by a pulling roller. The aluminum foil bubble curtain can be reeled under the transmission of the pulling roller according to the magnitude of snowfall on snowy days, snow on the curtain can be transmitted to the ground on the outer side of the greenhouse at a certain time interval, the snow bearing time of the curtain can be set in advance, and the curtain returns to the roof to continue bearing the snow, so that pressure of snow loads on the roof of the greenhouse is greatly reduced (by over 80 percent). The external sun-shading system has the functions of regulating the illuminance, reducing the temperature, preserving heat and reducing the influence of natural disasters such as hailstones and blizzards; the accumulated snow on the roof can be removed in a timing way, so that a lightweight material can be selected for the steel structural design of the greenhouse, and the construction cost is lowered.

The invention provides a pass-type microwave drying system for a sand mould. The pass-type microwave drying system for the sand mould comprises a roller way device, a microwave drying room and a humidity elimination blowing-in device. With humidity control as priority and temperature control as aiding, measuring temperature deviation of the sand mould is reduced, and a mode of top air drafting and bottom blowing-in is adopted so that the fact that air and water vapor in the microwave room circulate smoothly is ensured, quick, efficient and high-class drying of the sand mould is achieved; and multiple patterns such as local operation and remote operation are possessed, integration with other equipment or system is convenient and line production is achieved.

The invention belongs to the field of three-dimensional parking equipment, in particular to multiple-entry-exit type horizontal circulation intelligent three-dimensional parking equipment. The two ends of one side of a main frame are provided with an inner guiding rail and an outer guiding rail correspondingly. A supporting wheel guiding rail is arranged between the inner guiding rail A and the outer guiding rail B. One end of the top of a vehicle loading platform is provided with two supporting wheels. The supporting wheels move along the supporting wheel guiding rail, the inner guiding railand the outer guiding rail. A transmission mechanism comprises a chain. The chain is fixedly provided with a vehicle loading plate connecting plate. The vehicle loading plate connecting plate is connected with a bearing of the vehicle loading platform. The invention provides the multiple-entry-exit type horizontal circulation intelligent three-dimensional parking equipment which can realize horizontal circulating garage floor installation, realize multiple-entry-exit design, and exchanges arc paths between the upper and lower layers, adopts a closed-loop guiding device, and ensures the stability of equipment operation.

The invention discloses a vertical type polishing grinder. Two sets of lifting devices are arranged on the side surface of a rack side by side; a set of horizontally-moving device is arranged on the top surface of the rack; grinding material barrels are rotationally arranged on the lifting devices; openings of the grinding material barrels are vertical upwards; grinding material motors are transmitted to the grinding material barrels through grinding material reducers; a rotating mechanism is rotationally arranged on the horizontally-moving device; the rotating mechanism comprises a sun wheel,planet wheels and satellite wheels; a rotating motor is transmitted to a sun wheel shaft of the rotating mechanism to rotate through a rotating reducer; the sun wheel and a primary rotating disc arefixedly mounted on the sun wheel shaft; planet wheel shafts are rotationally mounted on the primary rotating disc; the planet wheels and a secondary rotating disc are fixedly mounted on the planet wheel shafts; the sun wheel is transmitted to the planet wheels; satellite wheel shafts are rotationally mounted on the secondary rotating disc; the satellite wheels are fixedly mounted on the satellitewheel shafts; and the planet wheels are transmitted to the satellite wheels to drive a tooling clamp to rotate. According to the vertical type polishing grinder, the structure is simple, the operate is easy, the working efficiency is high, the labor is saved, the universality is good, the polishing effect is stable, and the manufacturing cost is low.

The invention relates to a stereo garage bidirectional vehicle storing and taking device which comprises a vehicle carrying plate. The stereo garage bidirectional vehicle storing and taking device further comprises carrying frames distributed on the two sides of the vehicle carrying plate and used for carrying vehicles, the carrying frames comprise rollers with chain wheels, bearings and bearing seats, the rollers with the chain wheels are transversely and evenly installed on the bearing seats, the bearing seats are installed on the vehicle carrying plate, the chain wheels on the rollers, on the same side, of the corresponding carrying frame are connected through a chain, the movement between the rollers is free of interference, conveying belts capable of moving along with the rollers are installed above the carrying frames, a power device driving the carrying frames to move in a bidirectional mode is arranged on the vehicle carrying plate, and clutch movable disc moving mechanisms are further arranged on the other two sides of the vehicle carrying plate. The stereo garage bidirectional vehicle storing and taking device has the advantages that multilayer double-station bidirectional vehicle storing and taking are achieved through one power device, the structure is simple and compact, the layout is scientific and reasonable, operation is synchronous, stable and reliable, the vehicle storing and taking process is easy and convenient, consumed time is short, efficiency is high, the floor height of parking spaces can be effectively reduced, and the space utilization rate of a garage can be increased.

A stereo garage comprises a driving framework, a guiding framework, a fixed beam, sealed guiding rails, lifting chains, a driving shaft, bearing frameworks, lifting chain sheets and a guiding rail. The driving framework and the guiding framework are of framework structures formed by square steel tubes which are welded; the fixed beam is fixedly connected between the driving framework and the guiding framework and forms a bearing main body with the driving framework and the guiding framework; the sealed guiding rails are respectively arranged in a vertical frame body of the driving framework and a vertical frame body of the guiding framework; the lifting chains are arranged on the sealed guiding rails, the lifting chains can circularly move in the sealed guiding rails and form a lifting system with the sealed guiding rails; the guiding rail is arranged on the outer side of the guiding framework; a plurality of lifting chain sheets are evenly distributed on each lifting chain; a plurality of bearing frameworks are horizontally arranged between two corresponding lifting chains in parallel, and hinge shafts of beams on the two sides of each bearing framework are in hinge connection with corresponding lifting chain sheets. The stereo garage is small in floor area, easy to process, flexible in transmission and low in construction cost.

The invention provides a method for processing train interface data of hot standby vehicle-mounted equipment, which comprises the following steps of: performing hot backup on a first main control unitby using a second main control unit, and simultaneously supplying power to the first main control unit and the second main control unit; the first main control unit and the second main control unit receive input signals sent by a train interface and control the input signals to be consistent. The problem that existing vehicle-mounted equipment generally adopts a cold backup or warm backup main control unit, so that when a first main control unit which is working breaks down, the first main control unit needs to be switched to a second main control unit under the parking condition is solved.

The invention discloses a cloth meter counting device. The device comprises a frame, wherein the left and right sides of the middle of top surface of the frame are provided with two support plates, the two ends of a rotating roller are hinged to two lifting blocks, and the two lifting blocks are respectively inserted into placing troughs in the corresponding support plates; the top parts of the support plates are fixed with servo motors, the output shafts of the servo motors are fixed at the top ends of rotating sleeves, and the top parts of the support parts are hinged to the rotating sleeves; the lower ends of the rotating sleeves protrude into the troughs, the lower ends of the rotating sleeves are spirally connected with rotating screws, and the lower ends of the rotating screws are hinged to the upper ends of the lifting blocks; the top surface of the frame is fixed with a stud on which a lifting stud is screwed, the top end of the lifting stud is fixed with a meter counter probe, and the meter counter corresponds to a magnet fixed at a certain end plane of the rotating roller. The rotating rollers can be adjusted up and down to ensure the tensity between the rotating rollers and a cloth, and the synchronous operation between the rotating rollers and the cloth can be ensured, the accurate induction between a magnet and the meter counter probe can be used for more accurately metering meters.

The invention discloses a dust hood device of a torch cutting machine for continuous casting. The dust hood device of the torch cutting machine for continuous casting comprises a dust hood body, a dust collection pipe, a pipe support, an electric valve, an air flow guiding device, a driving device and a fixed base. The dust hood body is mounted above a torch cutting machine support through taper pins; the front end of the dust collection pipe is connected with the dust hood body through a bolt; the electric valve is mounted at the tail end of the dust collection pipe and is connected with a main dust collection pipe of a workshop; the air flow guiding device is further arranged in the dust hood body and is connected with a rod end of the driving device through a connecting rod mechanism; and the driving device is arranged on the outside of the dust hood body through the fixed base. During working of the device, the rod end of the driving device extends and drives the connecting rod mechanism to move counterclockwise, flow guiding plates rotate around a rotating center counterclockwise, on the contrary, the rod end of the driving device extends and drives the connecting rod mechanism to move clockwise, the flow guiding plates rotate around the rotating center clockwise, meanwhile, action of the driving device is interlocked with cutting action of the torch cutting machine, and soot of the torch cutting machine can be discharged effectively.

Disclosed in the invention is an intelligent teaching system. An identity identification card identifies an identity of a teacher; and identity identification apparatus identifies information of the identity identification card, turns on a teaching computer after completion of the identity identification card, and sends the information of the identity identification card after identification completion; a multi-media playing device plays multi-media data downloaded from a cloud server; a teaching computer downloads multi-media data of a teacher corresponding to the corresponding identity, sent by the identity identification apparatus, of the identity identification card from the cloud server, sends the downloaded multi-media data to the multi-media playing device, and controls the teaching computer to carry outplaying; the cloud server stores the multi-media data of all teachers; and a multi-media inputting device is used for uploading the multi-media data inputted by all teachers to the cloud server for storage. The provided intelligent teaching system has advantages of convenient usage, simple operation, high data reading and storage precision, and high practicability.

The invention discloses a main passive cold rolling production device of a steel bar with rib, which characterized in that the device comprises an active rolling mill and a passive rolling mill which is arranged on the upper position of the active rolling mill. The active rolling mill comprises a forming roller arranged on the frame base. The forming roller is provided with patterns required for grinding the rib of the steel bar. The forming roller is driven by the main motor through the transmission mechanism. The passive rolling mill comprises a roller of reducing diameter arranged on the frame base which is used for extruding and reducing diameter to the raw materials. The production device has the advantages of stable and realizable operation with high production efficiency.

The invention discloses an SLA (Stereo Lithography Apparatus) 3D printer. The SLA 3D printer comprises a rack, a housing, a display screen, a light path adjustment module, a trough, a scraper module, a bottom plate fixing assembly, a heavy block module, an L-shaped support platform, a backing plate and a controller. According to SLA 3D printer, the light path adjustment module is controlled by the controller, so that laser is perpendicularly emitted to the liquid level of the trough from top to bottom, and liquid photosensitive resin is cured and formed under the action of laser; the scraper module is installed on the bottom plate fixing assembly, and a scraper is driven to do a reciprocating motion in the trough by the bottom plate fixing assembly, so that layer-by-layer printing is realized, and an ideal printing effect is obtained; the L-shaped support platform is fixedly connected with a screen plate, and the screen plate is driven to perpendicularly move up and down in the trough by a motor, so that the distance of one layer is reduced per layer which is printed; and the liquid level of the trough is changed by lifting a heavy block of the heavy block module, so that the height of the liquid level in the trough is kept after the screen plate descends, and the fluctuation of the liquid level is reduced during printing, thereby obtaining a good printing effect.

The invention provides crawler-type filtering equipment for producing algal polysaccharides. The crawler-type filtering equipment comprises a first crawler-type filtering system. The first crawler-type filtering system comprises a first crawler-type filter screen, a first material receiving box and a second material receiving box, wherein the first material receiving box is provided with a first discharge pipe, arranged in a ring-shaped space defined by the first crawler-type filter screen and used for receiving first feed liquor filtered by the first crawler-type filter screen, and the second material receiving box is provided with a second discharge pipe, arranged under the first crawler-type filter screen and used for receiving first filter residues filtered out by the first crawler-type filter screen. The crawler-type filtering equipment for producing algal polysaccharides in the embodiment is good in filtering effect.