274results about How to "Guaranteed passability" patented technology

A motor hold shaft installation type permanent-magnetic direct-drive bogie comprises two frame devices, two permanent-magnetic synchronous traction motors, two triangular elastic supporting devices and four wheel pair box devices, wherein two adjacent front and rear wheel pair box devices are connected through the frame devices, two wheels on the left and right symmetric sides are connected through an axel, the permanent-magnetic synchronous traction motors and the axle are integrated through rotors, and driving is realized by rotating the axel; the two frame devices are symmetrically located on the left side and the right side of the advancing direction of a railway vehicle and are connected by double traction rod devices, and the triangular elastic supporting devices are connected with the permanent-magnetic synchronous traction motors and the double traction rod devices. According to the motor hold shaft installation type permanent-magnetic direct-drive bogie, the permanent-magnetic synchronous traction motors are adopted, rotor excitation power is saved, the motor efficiency is improved, the transmission efficiency is improved further after a gear box device is saved, the wheel base of the bogie is shortened, and the motor hold shaft installation type permanent-magnetic direct-drive bogie has the advantages that energy is saved, environment is protected and the small curve through capacity is high, and can be widely applied to various urban railway traffic vehicles.

The invention discloses butt joint and regulation equipment for solar wings of a moonlet. The equipment comprises a base part, a longitudinal movement part, a transverse movement part, a rotation part and a top layer platform part. Through the movements of the longitudinal movement part, the transverse movement part and the rotation part, the moonlet fixed in the top layer platform part can move in different directions at different angles, thereby realizing the regulation of six degrees of freedom of the body of the moonlet when the solar wings of the moonlet is butt-jointed, solving the problem of regulation for the body of the moonlet when the solar wings of the moonlet are butt-jointed, improving safety coefficient, improving regulation precision, greatly lowering the working intensity of personnel, and improving working efficiency.

The invention provides a dual-track self-traveling trolley mechanism which is stable in running, low in oscillation level and vibration degree in a lifting process, and precise in positioning. The dual-track self-traveling trolley mechanism comprises I-shaped steel for fixing dual tracks, dual tracks, a traveling mechanism traveling on the dual tracks through traveling wheels, a lifting mechanism fixed below the traveling mechanism and a lifting appliance connected below the lifting mechanism through movable hanging strips, wherein the traveling mechanism is provided with a positioning guiding sleeve matched with a positioning guiding device on the I-shaped steel for positioning, the lifting mechanism is of a horizontal framework type, and two groups of the movable hanging strip are arranged on mounting supports on two sides of the framework of the lifting mechanism in parallel. Compared with the traditional single-track self-traveling trolley mechanism which is lifted by a chain structure driven by a lifting block or an electric motor, the dual-track self-traveling trolley mechanism has the advantages that the oscillation of the lifting appliance in a traveling process and the vibration of the lifting appliance in a lifting process can be alleviated, and the lifting appliance can be kept stable and can be positioned accurately.

The invention discloses a control system of a virtual rail bus or train. The control system comprises a vehicle head detection assembly which is mounted on a vehicle head assembly and is used for acquiring a state signal of a vehicle head, a compartment state detection assembly which is mounted on a compartment assembly and is used for acquiring a state signal of a compartment, a vehicle tail state detection assembly which is mounted on a vehicle tail assembly and is used for acquiring a state signal of a vehicle tail, and a trace following controller which is used for reckoning coordinate information of the mass center of each compartment body and coordinate information of each axle according to data detected by the state detection assemblies, wherein the trace following controller transmits a steering instruction to a drive-by-wire steering gear of each axle through a communication network to follow traces of rear wheels and front wheels. The control system of the virtual rail bus or train has the advantages of simple theory, convenient operation, capability of achieving optical control effect and the like.

The invention discloses a three-dimensional vascular path planning method based on ant colony algorithm. The three-dimensional vascular path planning method comprises the following operation steps of 1, introducing data; 2, modeling a blood vessel; 3, extracting an axis of the blood vessel; 4, establishing a network topology structure of the axis of the blood vessel; 5, performing an ant detection algorithm; 6, initializing a parameter; 7, performing a heuristic information calculation; 8, selecting a probability; 9, realizing dynamic pheromone volatilization; 10, calculating a pheromone increment; 11, updating the pheromone; 12, determining ending of planning; and 13, outputting a result. According to the three-dimensional vascular path planning method, the ant detection algorithm is used based on axis extraction of the blood vessel. Through improving the ant colony algorithm and comprehensive consideration for catheter diameter, blood vessel length, least diameter, maximal curvature and maximal torsion, planning for an optimal surgery path by a surgeon is facilitated. The three-dimensional vascular path planning method improves a path planning reliability before a vascular interventional surgery and ensures passing of the catheter. Furthermore a new surgical path reference standard can be supplied for the surgeon.

The invention discloses a timely four-wheel compound steering system and a multi-objective optimization method thereof. The system comprises a differential steering system and a four-wheel steering-by-wire system, and four individual wheel hub motors are adopted to achieve power-assisted steering. According to the timely four-wheel compound steering system, based on the differential steering system, the four-wheel steering-by-wire system and an electronic assistant system are additionally arranged, so that the timely four-wheel compound steering system can switch between a two-wheel differential steering mode and a four-wheel steering-by-wire mode to achieve car steering according to different working conditions of a car. Based on the timely four-wheel compound steering system, the multi-objective optimization method is provided. According to the method, by selecting partial parameters of the steering system as optimization variables, building a target function, setting constraint conditions, building a model of the timely four-wheel compound steering system and adopting a harmony searching algorithm, multi-objective optimization is conducted on the timely four-wheel compound steering system.

The invention relates to a balloon catheter provided with side holes. The balloon catheter comprises a balloon, a catheter body and a guide wire, wherein in the catheter body, an inner tube passes through from the interior of an outer tube, and two ends of the inner tube are provided with openings, so that a guide wire cavity is formed; an annular gap formed between the inner tube and the outer tube is a pressurizing cavity; furthermore, on the section, close to the proximal end of the balloon, of the catheter, the pressurizing cavity of the section is divided into a closing portion and a communicating portion in a peripheral direction; by virtue of the closing portion, the outer tube of the portion is firmly connected to the inner tube, and through holes are formed in the closing portion; by virtue of the through holes, blood can circulate by virtue of the inner tube when the balloon gets dilated; and by virtue of the communicating portion, the balloon communicates with an external pressurizing system through the catheter body. The balloon catheter provided by the invention is just on the basis of slight improvement of existing balloon catheters on the market and the structures of the existing balloon catheters are not changed, and the problem of increasing the outer diameter of the catheter is avoided; the tracing property, passing property and passing ability of the finished product (the balloon catheter) are guaranteed; blood circulation is guaranteed while balloon dilation is achieved; and a dilation duration is prolonged and a treatment effect is enhanced.

The invention provides a producing method of inclusion granule liquid drink, which comprises the following steps: feed liquid to be added with granules is prepared: other raw materials except granular materials are uniformly mixed according to the prescription of the liquid drink and are treated full-homogeneously so as to obtain the feed liquid to be added with granules, and the feed liquid to be added with granules is arranged in an ingredient keeping tank for standby; the feed liquid to be added with granules is pumped in a compensating groove, and the granular materials are quantitatively added into the flowing feed liquid to be added with granules in the compensating groove on line according to the prescription quantity so as to form inclusion granule mixed materials; the inclusion granule mixed materials in the compensating groove are led out of the compensating groove by a positive-displacement pump and are continuously conveyed to a sterilizer for being sterilized, and the sterilized materials are continuously conveyed to a filling system for being filled so that the inclusion granule liquid drink can be obtained. The method can realize the continuous manufacturing production of the inclusion granule liquid drink.

The invention discloses an intelligent electric tractor and a layout method of a chassis of the intelligent electric tractor, and provides a novel arrangement method of the electric tractor chassis to ensure that the novel electric tractor chassis achieves the optimal working performance. A dual-motor is taken as the power by the intelligent electric tractor, compared with a traditional tractor, fossil energy is not used, and environmental protection is more facilitated. Compared with a common single-motor electric tractor, the battery size of the intelligent electric tractor is increased, the cruising ability is improved, the motor size is small, and chassis arrangement is facilitated. A novel electric tractor chassis arrangement method based on the performance is adopted, and the problem that axle load distribution of the electric tractor is not ideal can be more reasonably solved. By reasonably distributing the energy flow of the dual-motor, the limited electric energy of a power battery pack can be sufficiently utilized, and the layout method has an important and practical significance for developing economical, efficient and energy-saving and environment-friendly novel intelligent agricultural machinery.

The invention relates to the field of environmental protection, and particularly discloses an air purification device of a clean room. The air purification device comprises a shell, an air inlet, an induced draft fan, a ventilation opening and an air outlet pipe; a filter screen cylinder is fixed on the right side of the ventilation opening, a vertical rotary inner core is coaxially arranged in the filter screen cylinder, a plurality of first partition plates which are staggered vertically are fixedly arranged on the right side of the filter screen cylinder, a plurality of heaters are fixedlyarranged between every two adjacent first partition plates, and a temperature adjusting chamber is arranged at the right end of the shell. According to the air purification device, the rotary inner core is arranged in the filter screen barrel, on one hand, the passing performance of air in the filter screen barrel can be ensured, the filtered air can be discharged in time, and on the other hand, filtered dust on the filter screen cylinder is swept through a brush plate installed on a brush plate groove, so that the dust can be removed from screen holes and is prevented from being blocked; thefiltered air is subjected to sterilization treatment by virtue of high-temperature heating treatment, so that bacteria in the air are reduced, and the requirements of the clean room are met.

The invention discloses a corn kernel threshing and separating device which comprises a threshing roller with threshing teeth. Each threshing tooth comprises a tooth rod with a spherical top end, a threshing concave plate is arranged below the threshing roller and comprises a concave plate body, the concave plate body comprises two side plates, supporting plates are arranged between the two side plates, a longitudinal separation plate is arranged between the two supporting plates, separation bars are arranged on the longitudinal separation plate, and the separation bars and the longitudinal separation plate are flush with the side plates. A separation roller is arranged on one side of the flowing direction of crops, and separation teeth and separation plates are arranged on the separation roller in a staggered mode. A separation concave plate communicated with the threshing concave plate is arranged below the separation plate. Through rubbing between the threshing teeth and the threshing concave plate, threshing is achieved, power consumption is little, and cost is low. Through the threshing concave plate, while passing ability and screening efficiency are guaranteed, strength and use reliability are improved, and the crushing rate is lowered; meanwhile, through replacement of the corn kernel threshing and separating device, the effect of harvesting corn crops at the same time is achieved, and the use rate of a rice and wheat harvester is improved.

The invention discloses an electronic limited-slip differential and a control method thereof. A detection mechanism is used for collecting rotation speed information, accelerator pedal opening information, steering wheel corner information, lateral acceleration information and yaw velocity information and sending all the information to an electronic control unit; a work mode selection unit is used for selecting different work modes of the electronic limited-slip differential by a driver; and an electronic control unit is used for controlling an electromagnetic clutch, an auxiliary motor and a brake of an execution mechanism to work according to the received information and limiting the slip rates of driving wheels, thereby realizing electronic limited-slip differential velocity of the driving wheels on two sides. When the slip rate of the driving wheel on one side exceeds a set value, the auxiliary motor connected with a half-shaft of the drive axle works as a generator to apply a resistance moment to the half-shaft, so that the slip rate of the wheel is reduced, and a driving moment of the generator effectively acts on the wheel on the other side; and the brake is matched with the auxiliary motor to work in necessity, so as to apply a certain bake force to the wheels.

The invention discloses a device and a method for boosting network voltage at the tail end of an electrified railway power supply arm. A network voltage boosting device is assembled at the tail end of a power supply arm in a traction substation, and the reactive current of a load is dynamically compensated on site; therefore, the circuit network voltage is boosted. A fixed capacitor (FC) device, a dynamically adjustable reactive source and a voltage transformer are connected in parallel; the dynamically adjustable reactive source and the FC device are matched to dynamically track and compensate the reactive current of the load on site; the dynamically adjustable reactive source realizes stepless and non-contact switching and controls the reactive capacity of output; the FC device comprises a filter reactor and a capacitor bank which are connected in series; and a secondary side of the voltage transformer is connected with a controller. By the device and the method, the problems that atransmission line has lower efficiency and an optimized network voltage boosting effect cannot be achieved due to relatively high equipment mounting capacity of a compensation device arranged in the substation and the reactive current because of long power supply arm and high line impedance are solved, the network voltage boosting device is not limited by a space position of the traction substation, the investment is low, and the construction period is short.

The invention discloses an endoscope fiber Raman probe and a detection device. The endoscope fiber Raman probe comprises a lens, a circular ring lens, a filtering layer, a circular ring filtering layer, a center optical fiber bundle, a Raman collection optical fiber, an optical fiber cable, a connecting piece, a center optical fiber bundle branch and a Raman collection optical fiber branch; the Raman collection optical fiber annually surrounds the center optical fiber bundle; the lens and the filtering layer are arranged at the front end of the center optical fiber bundle; the circular ring lens and the circular ring filtering layer are arranged at the front end of the Raman collection optical fiber; the combined optical fiber bundle of the Raman collection optical fiber and the center optical fiber bundle extends through the optical fiber cable; the other end of the optical fiber cable is divided into a Raman collection optical fiber bundle and an excitation/endoscope optical fiber bundle by the connecting piece. According to the endoscope fiber Raman probe disclosed by the invention, integrated design of optical fiber Raman and optical fiber endoscope is realized; the device hasthe advantages of small volume, low price, high flexibility and accurate detection, and is more applicable to biological in-vivo and in-situ Raman detection, and is relatively easy and convenient to maintain.

The invention relates to the field of environmental protection, and specifically discloses a sewage treatment device for rapidly separating impurities, which includes a casing, a sedimentation tank, an upper cover, a drain pipe and a water feeding pipe, wherein an output shaft of the motor is vertically arranged downward, and the lower end of the output shaft is coaxially fixed to a transmission shaft passing through the upper cover downward; a vertical hollow shaft is fixed to the central axis of a rotating cylinder; a plurality of vertical filter screen boxes are arranged in the rotating cylinder and are evenly distributed along the circumference of the hollow shaft with equal included angles; a drainage hole communicating with the inside of the hollow shaft is opened on one end, of eachfilter screen box, located at the hollow shaft. According to the device, falling sewage is filtered by the rotating filter screen boxes, and the filter boxes are in contact with sewage in a three-dimensional structure manner, so that the contact area with the sewage is increased, and the flow of water is ensured. Attached impurities are liable to shed by changing rotation directions of the filterscreen boxes, and the impurities can be accumulated inside for a long time without affecting the filtration, thus reducing the frequency of maintenance and cleaning of the device, and reducing the use cost.

The invention relates to a sedan tire structure, in particular to a tire tread pattern structure of a sedan tire. The tire tread of the sedan meridian tire comprises central pattern blocks, lateral pattern blocks and tire shoulder pattern blocks, wherein the central pattern blocks are the longitudinal pattern blocks; the lateral pattern blocks and the tire shoulder pattern blocks are regularly arranged on the left side and the right side of the central pattern blocks from inside to outside in sequence; the central pattern blocks are positioned on the central line position of the tire tread; the same arched pattern ditch is spaced between the central pattern blocks and the lateral pattern blocks, between the two adjacent lateral pattern blocks, and between the two adjacent tire shoulder pattern blocks respectively; an inclined lateral pattern ditch is spaced between the two adjacent central pattern blocks; and a longitudinal circumferential pattern ditch is spaced between the lateral pattern blocks and the tire shoulder pattern blocks. The tire tread of the tire adopts mixed patterns, and has the advantages of sufficient braking force, good control performance and elegant appearance.

The invention discloses a rocket mobile launching vehicle, which comprises a tractor, a chassis, a heat preservation cabin, an erecting system, a launching pad, temperature adjusting systems, a hydraulic system, a vehicle control system and power system wherein a traction seat is mounted on the tractor; the traction seat is connected with the chassis through a traction pin; the heat preservation cabin is fixedly mounted on the chassis; the erecting system is hinged to the rear end of the chassis; the launching pad is hinged to the rear end of the chassis; the launching pad and the erecting system are coaxial; the temperature adjusting systems are installed in front of and inside the heat preservation cabin; the hydraulic system is installed below the chassis; the vehicle control system isinstalled inside the heat preservation cabin; the operation panel is located outside the side wall of the heat preservation cabin; and the power systems are installed in the front of the chassis and inside the heat preservation cabin. The rocket mobile launching vehicle is ingenious in conception and reasonable in structural layout, the long-distance transportation time is greatly shortened, the stability in the transportation process is guaranteed, the shock absorption capacity is improved, the heat preservation cabin has good sealing performance, and meanwhile, the requirements for erectingand launching are met through the full-open design.

The invention discloses a retractable car automatic cowcatcher comprising a barrier sensing system, an electronic control hydraulic execution system and a collision energy absorption system. The collision energy absorption system is arranged at the front ends of vehicle front wheels, the barrier sensing system is arranged at the front end of a vehicle, and the electronic control hydraulic execution system is connected with the barrier sensing system and the collision energy absorption system. Safety running of a car is guaranteed, after a barrier is removed, the retractable car automatic cowcatcher can be retracted into a chassis, the passing ability of the car under the normal situation is ensured, the structure has the sufficient connecting strength and certain elasticity, and the barrier removing ability and travelling safety of the retractable car automatic cowcatcher are improved.

The invention discloses an air conduit cleaning robot which comprises supporting structures, keeping structures, a driving structure, a cleaning assembly and a control system. One end of each supporting structure is connected with one end of the corresponding keeping structure. The keeping structures are connected with the driving structure. The cleaning assembly is installed at the front end of the front supporting structure. The supporting structures, the keeping structures, the driving structure and the cleaning assembly are connected with the control system through a signal transmission unit. Motor drive screw nut mechanisms are adopted for the supporting structures, the keeping structures and the driving structure correspondingly so that the robot can walk and be supported in conduits. The cleaning assembly cleans the inner walls of the conduits, and the air conduit cleaning robot has large enough driving traction force, pipe diameter adaptability, elbow passage capacity and climbing capacity and can meet the cleaning requirements of various air conduits.

An automotive automatic electric retractable pedal comprises a pedal plate mounted on a pedal plate mounting seat. The pedal plate mounting seat is fixedly connected with the front ends of guide rods which are sleeved in sliding sleeves in a reciprocating slide manner, the sliding sleeves are mounted on a box which is mounted on a beam of an automotive chassis, a driving synchronous belt pulley seat and a driven synchronous belt pulley seat are mounted on the box, a driving synchronous belt pulley is mounted on the driving synchronous belt pulley seat, a driven synchronous belt pulley is mounted on the driven synchronous belt pulley seat, a synchronous toothed belt is mounted between the driving synchronous belt pulley and the driven synchronous belt pulley and fixedly connected with a connector, the connector is fixedly connected with the rear ends of the guide rods, and a transmission shaft of the driving synchronous belt pulley is connected with an output shaft of a speed reducing motor. The automotive automatic electric retractable pedal is of an automatic retractable structure and convenient in use.

The invention relates to a thermal insulation material, and specially relates to a thermal insulation material of torpedo cars for iron and steel smelting. The invention provides a high temperature thermal insulation material for tank number of torpedo cars. The high temperature thermal insulation material comprises a nano thermal insulation layer and a strengthened layer, wherein the thermal insulation material mainly comprises the following raw materials: nano silica aerogels; fibrous alkali-free superfine glass or high silica glass fiber; quartz fiber; polycrystalline mullite fiber; ceramics; aluminium oxide aerogels; hydrophobic agent; one or more of potassium hexatitanate whiskers, silicon carbide, zirconium silicate and aluminum silicate; alumina; citric acid or sodium tripolyphosphate and gypsum; and the strengthened layer is formed by reinforced resin and fiber cloth. The nano high temperature thermal insulation material prepared according to the invention has excellent thermal insulation performance, higher strength and higher integrality, is polyporous, and can keep passing ability of electronic signals to the greatest extent without shielding.

The invention discloses a miniature purely electric car chassis layout structure, which comprises a square truss, wherein the square truss is convex to a passenger cabin, the front part of the square truss is fixedly arranged on a middle transverse beam of a car body, the back part of the square truss is fixedly arranged on a back transverse beam of the car body, a power battery pack assembly is arranged in the square truss, a low-voltage module is arranged in a front cabin skeleton, a high-voltage power module is arranged in a back cabin skeleton, and a cooling water pipe, a brake steel pipe and a parking brake flexible shaft are arranged at the two sides of the power battery pack assembly. The miniature purely electric car chassis layout structure has the advantages that the layout spaces of high-voltage and lower-voltage electric appliances of the electric car are independently arranged, so the electromagnetic interference is reduced; the battery pack is arranged by the new regular framework type truss, so while the safety ground clearance of the battery is guaranteed, the trafficability of the whole car and the comfortability of passengers are guaranteed, the capacity of a battery of the battery pack is increased, and the driving mileage of the whole car is increased; the power driving system assembly adopts the rear drive back layout method, so the climbing capability of the miniature purely electric car is effectively improved, and the front axial load and back axial load of the whole car reach the ideal distribution ratio of 50:50.