33results about How to "Small turning angle" patented technology

The invention relates to a cable support node connecting device. The device comprises a cable body and a connecting device, wherein the connecting device comprises a node main plate, node upper plates, a vertical connecting plate, a node lower cover plate, clamping plates and a lug plate; the node upper plates, the vertical connecting plate and the node lower cover plate are connected into a cavity through a centre shaft; a bearing is sleeved on the centre shaft; both ends of the node main plate are provided with the node upper plates; both sides of the node lower cover plate are provided with the clamping plates; the cable body passes through the internal space of the connecting device and is tangent to the bearing; the centre shaft fixes the bearing and the cable body inside the connecting device through pre-tightening force of bolts; and the clamping plates are fixedly connected with the node upper plates through the bolts and are used for clamping or fixing the cable body passing through from the middle part. The node connecting device has the characteristics of simple structure, clear force transmission, reasonable stress, strong bearing capacity and the like. The device can fully exert material strength, effectively transmit steel cable force, reduce stress amplitudes, reduce prestress loss caused by friction and improve integral bearing capacity and stability of the structure.

The invention discloses a fuel battery and a new energy automobile. The fuel battery comprises an electric pile module, an electrical control component, a hydrogen path system, a cooling loop system and an air path system, wherein the electric pile module, the electrical control component and the hydrogen path system are installed in one box body so as to form a main working module of the fuel battery, an air compressor, an air cooler and a humidifier are integrated in one first support so as to form an air path core module, a water pump, a water pump controller and a thermostat valve are integrated on a second support so as to form a cooling loop core module, the main working module of the fuel battery is separated from the cooling loop core module and the air path core module in space, and is connected with the cooling loop core module and the air path core module through pipelines, so that connecting pipelines of air and cooling liquid have small turning angles, the air path and thecooling liquid path have small flow resistance, power of the air compressor and water pump of the system is lowered, the efficiency is improved, and installation and integration are flexible.

The invention discloses a path planning method based on an improved A* algorithm, and belongs to the field of unmanned driving path planning. An existing path planning method cannot deal with various conditions and cannot accurately perform global path planning due to temporary dynamic obstacles. The path planning method based on the improved A* algorithm comprises the steps: processing a collected road condition map through a grid method, and obtaining a grid map; then, optimizing and improving the A* algorithm by using an ant colony algorithm; then, carrying out local path planning by an artificial potential field method, and carrying out improvement and optimization aiming at the defect that a local minimum value and a target of the artificial potential field method are unreachable; afterwards, combining the improved A* algorithm and the artificial potential field method to design a mixed path planning algorithm, and providing a proper control algorithm for subsequent vehicle path planning; and afterwards, adopting a proper path planning algorithm, automatically planning a feasible path by the system, and enabling the vehicle to avoid an obstacle according to the path, so as to enable the vehicle to accurately and quickly reach the target position.

The invention discloses a manual rapid construction railway transport armored vehicle unloading temporary platform for armored forces. The manual rapid construction railway transport armored vehicle unloading temporary platform comprises a guide platform and a slope track. The guide platform is composed of a 45 degrees right triangle platform plate and a plurality of vertical supporting legs withadjustable height. In order to reduce the weight of a single piece to be transported, the platform plate is divided into at least two or more small triangles which are connected with each other through buckling-closing type connecting pieces; and the slope type track is composed of two sections or more track single bodies with a dip angle of 16 degrees-25 degrees with the ground, and the track single bodies are connected to each other by adopting claw type hinges. The manual rapid construction railway transport armored vehicle unloading temporary platform is light in the whole weight and shortin construction time compared with a platform made by foreign military and a temporary platform constructed by an army manually; and less personnel is required, the disassembling and evacuation are fast, no power is required, and the bearing capacity is not reduced. The manual rapid construction railway transport armored vehicle unloading temporary platform can be arranged in multiple directionson the left and right sides of a train flat car, the direction of the unloading vehicle is changed easily, and no restrictions on unloading site space and terrain is achieved; and it is not necessaryto regroup the army to deal with any complex situation in the field conditions.

The invention discloses a skiing device and in particular relates to a ski-bob which can be used by sitting and is suitable for the beginners. The ski-bob is characterized in that a supporting tube is arranged below a saddle, an arc base is arranged at the lower end of the supporting tube, the lower end of the arc base is connected with a connection plate, the connection plate is connected with a fixing plate below the connection plate by springs, foot pedals are connected at both sides of the fixing plate and a ski is arranged below the fixing plate. The ski-bob is especially suitable for the children, the old and the beginners and is small in volume, convenient and flexible to use, easy to be controlled in operation, safe, good in stability and convenient to carry. The ski-bob has small angle of turn, simple structure and low cost, is comfortable for the user to ski by sitting, can not only be used on the ice but also be used on the snow field, is suitable for the ordinary consumers to buy and is beneficial to implementation.

The invention discloses an unmanned aerial vehicle dynamic obstacle avoidance method based on an improved mutual speed obstacle method, which improves a mutual speed obstacle method, reselects a new flight speed direction after judging that an unmanned aerial vehicle collides with an obstacle, and reselects the optimal flight speed and flight direction according to a current position of the unmanned aerial vehicle and a target point after obstacle avoidance is finished. According to the unmanned aerial vehicle dynamic obstacle avoidance method, factors such as time, place and distance of collision between the unmanned aerial vehicle and the dynamic obstacle are comprehensively considered, and particularly, speed selection is performed after the collision is judged, so that a smooth track and a collision-free flight path of the unmanned aerial vehicle are ensured, and therefore, the unmanned aerial vehicle can select the velocity vector according to the size of the unmanned aerial vehicle and the radius and distance of the dynamic obstacle to reduce unnecessary jitter and shorten collision avoidance time.

The invention discloses a ratchet batch, aiming at providing a ratchet batch, in which a loosening screw can be normally used even without a positive and negative adjusting button and the screw can be randomly unloaded tightly positively and negatively by a single hand with a small screwing angle. The ratchet batch has advantages of large torsion force, small size, simple structure and easy processing and manufacturing. The ratchet batch comprises a rod, gearwheels, annular gears and a spring. The working principle of the ratchet batch is that: the method is applied in the ratchet batch that the gearwheels and the annular gears, both of which have the same number of teeth, are adopted to mesh each tooth of the two gearwheels and the meshed teeth of the two gearwheels are separated axially; with this method, the work performance of the ratchet batch is improved. The invention is applicable for fast unloading tightly the screws on various machineries, electronic equipment and apparatuses.

The invention belongs to the technical field of production workshop dust removal, and especially discloses a production workshop intelligent dust removal device which comprises a bottom plate, the topof the bottom plate is connected with a supporting plate, the bottom of the bottom plate is connected with a rotating wheel motor; a rotating wheel is connected to an output shaft of the rotating wheel motor, universal wheels are connected to the bottom of the bottom plate, a steering motor is connected to the top of the bottom plate, a fixed supporting frame is connected to an output shaft of the steering motor, a hub motor is connected to the bottom of the fixed supporting frame, and a tire is connected to the surface of the hub motor. Fan blades are driven to rotate through two front motors intwo front air ducts and a side motor in aside air duct; surrounding dust is enable to enteradust collection box through anair suction opening to be filtered, the surrounding dust can be better cleaned, meanwhile, the fan blades are driven to rotate through abottom motor in abottom air cylinder, the dust on the ground is cleaned through a bottom air suction opening, and the cleaning effect is better.

The invention relates to a smoke dust suction device applied to laser surface decontamination. The smoke dust suction device comprises a shell and a rotating shaft, wherein a circular cavity is formed in the shell, and a first flow guide groove, a second flow guide groove and an air outlet are formed in the middle of the top, the middle of the front side and the middle of the bottom of the shell correspondingly; a plurality of first tangential air inlets and second tangential air inlets are formed in the air outlet ends of the first flow guide groove and the second flow guide groove at intervals correspondingly, the first tangential air inlets and the second tangential air inlets deviate from the axis part of the cavity, the rotating shaft is arranged in the cavity, and the two ends of the rotating shaft are rotationally connected with the shell correspondingly; and a first spiral brush and a second spiral brush are arranged at the two sides of the rotating shaft respectively, and the rotating directions of the first spiral brush and the second spiral brush are opposite. According to the smoke dust suction device, through the cooperative design of the shell and the rotating shaft, the problems that because dust in an existing adsorption pipe cannot be effectively removed, the suction capacity is reduced and the dust collection effect is affected are effectively solved.

The invention discloses an inner axle box bogie adopting a novel flexible framework and a permanent magnet direct drive motor, the framework is generally H-shaped and consists of two T-shaped beams and two sets of slewing bearings for connecting the two T-shaped beams, only the degree of freedom of transverse rotation is released, and meanwhile, the two T-shaped beams are in approximately rigid connection in other directions; by means of the characteristic, the axle box suspension device can adopt a splayed rubber pad which can meet reasonable horizontal positioning and large vertical suspension rigidity between the wheel pair and the framework and is compact in structure and economical in cost, and bearings are arranged on the inner sides of the two side beams, so that the bogie is simple in structure and low in cost. And the purpose of light weight is achieved. The driving device is directly driven by a permanent magnet synchronous motor and is mounted on the left and right inner axle box bodies, a motor shaft suspension and direct drive mode is adopted, a gearbox structure can be avoided, the structure is simple, the axle distance of the bogie can be obviously reduced, and the self weight of the bogie can be reduced.

The invention relates to a cigarette packaging production line. The cigarette packaging production line comprises an environment-friendly paper fixing and folding device, an aluminum-foil paper short edge fixing and folding device, an aluminum-foil paper synchronous conveying belt, an inner frame paper pneumatic clamping device, an aluminum alloy channel and a channel corner gearbox which are sequentially arranged from front to back, wherein the environment-friendly paper fixing and folding device comprises a second wheel die box, paper supporting protruding blocks and a working face; the paper supporting protruding blocks are arranged at the upper end and lower end of the outer edge of the working face of the second wheel die box; the aluminum-foil paper short edge fixing and folding device is installed on a transition channel plate between a second wheel and a third wheel; the aluminum-foil paper synchronous conveying belt comprises air suction paper guide plates, air suction holes, air suction grooves and air suction bases; the inner frame paper pneumatic clamping device comprises a cylinder body, tensioning blocks, a wheel core and springs; and the aluminum alloy channel comprises a high-level runway, a low-level runway, a descending runway and the channel corner gearbox. According to the cigarette packaging production line, the maintenance time is saved, and the production efficiency is improved.

The invention discloses a two-stage steering support carrying vehicle. A vehicle head part comprises a cab body and a vehicle head case which are fixedly connected; two front wheels are mounted at the bottoms of the cab body and the headstock case; the hinging part comprises a mounting block, a connecting frame, a steering hydraulic cylinder, a hinging frame and a rear connecting plate; two middle wheels are mounted on the two sides of the bottom of the connecting frame; the two rear frames are detachably connected with the two supporting frames symmetrically arranged at the rear end of the rear connecting plate respectively. The fastening mechanism is connected with the support frame and the rear frame; two hoisting mechanisms are sequentially fixed on the top surface of the rear frame; and rear wheels are mounted at the bottoms of the two rear frames. According to the support carrying vehicle, two-stage hinge joint is achieved through the hinge joint part, steering is controlled through the steering hydraulic cylinder, the turning angle can be controlled to be minimum, turning is more flexible, rotation of the rear frame and the hinge joint frame can be achieved on a bumpy road due to the arrangement of the hinge joint frame, breakage caused by rigid connection is prevented, and the use effect is better.