42results about How to "Reduce passability" patented technology

The invention provides a preparation method of a novel high-efficiency haze filtration silver nanowire net and MOFs (metal-organic frameworks) composite porous fiber film material. The preparation method is characterized by comprising the following steps of preparation of silver nanowires, preparation of MOFs, preparation of a spinning precursor solution, preparation of a spinning solution, electrostatic spinning, preparation of suction filtration dispersing liquid and suction filtration and filming. The preparation method has the benefits that the preparation method of the novel high-efficiency haze filtration silver nanowire net and MOFs composite porous fiber film material prepares a composite fiber film by using the silver nanowires in certain diameters and the MOFs in certain particlesizes for doping; pore sizes of the fiber film formed by the spinning are used for filtration; at the same time, lower voltage is applied; particulates are collected by a remote electrostatic force of the silver nanowire; an filtration effect is improved; and since the silver nanowires have a sterilization function, the composite porous fiber film material can achieve a multifunctional haze filtration effect.

The invention discloses an intermediate track and auxiliary device transportation system, which belongs to the technical field of wheeltrack railways and can effectively solve the problems of transverse force, vertical force, starting friction force, braking operation resistance and climbing friction force in the transportation process of a train. In the technical scheme, an intermediate track is established on a median line between a left steel rail and a right steel rail of the conventional wheeltrack railway; a controller device is arranged on the middle lower side of a train bogie wheel shaft or a cross beam; the lower end of the controller device is vertically connected with a hanger device, and the upper end of the controller device is provided with a damping device; a lifting frame wheel shaft which is arranged on the middle upper side of the intermediate track and is extended from a bogie pulling motor rotating shaft gear and a bogie wheel shaft gear is provided with a starting wheel, a braking wheel 1 and a braking wheel 2; and a brake caliper device is arranged in front of the starting wheel or the braking wheel 2 or behind the braking wheel 1. The technical scheme has extremely prominent effects of improving the safety, the speed and the benefit of the train during operation, preventing the wheel/track from abrasion, and the like.

The invention discloses a hinging-type dump truck chassis. The hinging-type dump truck chassis comprises a steering system, a braking system, a drive system and a driving system, wherein the driving system comprises a truck frame assembly, the truck frame assembly comprises a front truck frame, a hinging body and a rear truck frame, a front axle is arranged below the front truck frame, a middle axle and a rear axle are arranged below the rear truck frame, one end of a left front hydro-pneumatic suspension unit and one end of a right front hydro-pneumatic suspension unit are connected to the upper surfaces of the left side and the right side of the front axle respectively, the other end of the left front hydro-pneumatic suspension unit and the other end of the right front hydro-pneumatic suspension unit are connected with the front truck frame, a right front cross pull rod, a front V rod and a left front cross pull rod are installed between the front truck frame and the front axle, themiddle axle is connected with the rear axle through a left balancing beam and a right balancing beam, a right middle cross pull rod, a middle V rod and a left middle cross pull rod are installed between the rear truck frame and the middle axle, and a right rear cross pull rod, a rear V rod and a left rear cross pull rod are installed between the rear truck frame and the rear axle. The hinging-typedump truck chassis is simple in structure, safe and reliable, and can effectively improve the trafficability and the comfort of the complete machine.

The invention provides a multifunctional all-terrain transportation robot, and belongs to the technical field of transportation. The problem that an existing transportation robot is poor in obstacle crossing capacity is solved. The multifunctional all-terrain transportation robot comprises a chassis and wheel assemblies, a tilting shaft horizontally extending in the left-right direction is arranged on the chassis, a goods shelf capable of swinging around the central axis of the tilting shaft is arranged on the tilting shaft, a gravity center adjusting assembly used for changing the tilting angle of the goods shelf is arranged on the goods shelf, and an auxiliary assembly used for supporting the goods shelf and realizing auxiliary obstacle crossing during obstacle crossing is further arranged on the goods shelf. The robot has the advantages of being high in obstacle crossing capacity, wide in application range and the like.

The invention relates to the field of shock absorbers for bullet trains, in particular to a shock absorber convenient to install for a bullet train. The shock absorber comprises a main body, a wrapping mechanism, a pin tightening mechanism, a non-return mechanism, a rotating mechanism and a fixing mechanism. Through the arrangement of the wrapping mechanism, the main body can conveniently offset part of eccentric force formed in the movement process while stretching out and drawing back, stable operation of the bullet train is facilitated, through the arrangement of the non-return mechanism, the non-return effect can be achieved on rotation of parts in the wrapping mechanism according to needs, through the arrangement of the rotating mechanism, more labor is saved during rotation, operation can be conducted in a small space, the using effect of the shock absorber is improved, through the arrangement of the pin tightening mechanism, the installation process can be simpler, faster, time-saving and labor-saving, the installation or replacement efficiency is improved, through the arrangement of the fixing mechanism, the main body is installed on a beam column more firmly, the replacement process is simple, and the replacement efficiency is further improved.

The invention discloses a front-rear-rack hinge-connecting device for a small-sized wheel type loading machine. The front-rear-rack hinge-connecting device comprises a front rack (1) and a rear rack (2), wherein a group of front rack upper in plates (3) is arranged on the front rack; a group of rear rack upper in plates (4) is arranged on the rear rack; pin holes are respectively formed in the front rack upper pin plates and the rear rack upper pin plates, upper pin shafts are respectively assembled in the pin holes. The front-rear-rack hinge-connecting device is characterized in that a position between the two upper pin roller is assembled with a hinge-connecting rod (6) through an upper joint bearing (8), wherein a front rack lower pin roll fixing plate (12) is arranged on the lower part of the front rack, a rear rack lower hinged fixing plate (9) is arranged on the lower part of the rear rack; a lower pin roll (11) is assembled on the front rack lower pin roll fixing plate; a lower joint bearing (10) on the lower pin roll (11) is assembled with the rear rack lower hinged fixing plate (12) in a matched manner. The front-rear-rack hinge-connecting device has the advantage that the gravity center of the rear rack is lowered, the stable performance of the whole vehicle is excellent, the passing-through performance is good, a shaking bracket can be cancelled, the cost is lowered and the reliability is improved.

The invention relates to a pulley device for reducing friction of paying-off construction. The pulley device comprises a lifting plate, lifting frames, a main shaft, pulleys and ferrules, wherein bothsides of the lower end of the lifting plate are symmetrically provided with the lifting frames, a main shaft is mounted in the middle parts of the lifting frames on two sides, a plurality of the pulleys are threaded on the main shaft coaxially side by side, an annular groove is formed in the outer circumference of each pulley, one ferrule is sleeved in the corresponding annular groove, the ferrules can rotate in the grooves of the pulleys, and the lifting plate is erected on the ferrules by means of lead wires or traction ropes of the pulleys. The pulley device can effectively improve the construction efficiency, is not affected by the self-weight and damage degrees of the pulleys, is convenient to install and disassemble, and significantly reduces the risk of damaging the pulleys, the operation risk and the construction safety risk. The pulley device further has the effects of being low in manufacturing cost, reusable, economical, beautiful and practical.

The invention discloses secondary-primary-hinge structure artillery and belongs to artillery of a novel structure. In order to solve the problems that towed artillery is poor in tactical mobility, long in emplacement and raising time and prone to being attacked by enemy counterbattery fire, self-propelled guns are complicated in structure, high in maintenance difficulty and price and poor in strategic mobility, and truck guns are small in firing area, a secondary-primary-hinge structure is adopted, and a secondary hinge and a primary hinge are both mounted on a hinge shaft, connected in a hinged mode and located in the same tangential direction of the hinge shaft; the secondary hinge is in a shape of a hollowed-out part of the primary hinge; the secondary hinge can rotate around a centralshaft and can be embedded into the primary hinge, thus, the complete secondary-primary-hinge structure is formed, and the normal opening and closing effect of the secondary hinge and the primary hingeare achieved; the secondary hinge is used as a gun carriage for mounting artillery and a spade; the primary hinge is used as a vehicle frame for mounting an engine, wheels and a soil spade and is a carrier of the secondary-primary-hinge structure artillery; and the problems are successfully solved through the secondary-primary-hinge structure.

The invention belongs to the field of wire cutting equipment, and particularly relates to automatic wire cutting equipment. The automatic wire cutting equipment includes a support; a clamping plate is fixedly connected to the lower surface of the support; and a wire cutting mechanism is slidably connected to the upper surface of the clamping plate, and includes a guide mechanism. According to the automatic wire cutting equipment, a guide plate is arranged, and is of an arc-shaped structure, a cylindrical wire can be clamped on the upper surface of the guide plate, in the moving process of the wire, rolling wheels in fixing strips make contact with the outer surface of the wire, friction force borne by the outer surface of the wire is converted into rolling friction from sliding friction, friction resistance is reduced, and friction loss borne by the outer surface of the wire is reduced; and under the limitation of the guide plate and the two fixing strips, the lower surface of the wire is subjected to three-point positioning, the wire is forced by gravity to be tightly attached to the upper surface of the guide plate all the time, it is guaranteed that the wire can stably, smoothly and continuously move, and the problem that before a traditional wire is cut, the wire is prone to deviation is solved.

The disclosure relates to an image processing method, an image processing device, image processing equipment and a computer-readable storage medium. The method includes: converting to-be-processed image signals to a frequency domain to obtain initial frequency-domain signals; obtaining an asymmetric weighting matrix according to an original-target antenna pattern function and a fuzzy-target antenna pattern function; carrying out asymmetric weighting processing on the initial frequency-domain signals according to the asymmetric weighting matrix; and converting the frequency-domain signals afterasymmetric weighting to a time domain to obtain asymmetrically weighted image signals.

The invention discloses a neurosurgery interventional operation catheter device which comprises a working box, a support is fixed to the bottom of the working box, a base is fixed to the bottom of the support, a partition plate is fixed to the inner wall of the working box, and a first catheter and a second catheter are inserted into the upper end of the working box in a penetrating mode. The first guide pipe and the second guide pipe are jointly communicated with a drainage pipe, the end of the drainage pipe is connected with a speed control box, the bottom of the speed control box is connected with a drainage head, a flow speed regulation and control mechanism is arranged in the speed control box, and a pressure meter and a pressure sensor are arranged on the side wall of the working box. The drainage device has the advantages that drainage of the two areas in the working box is carried out alternately, accumulated liquid is discharged in time, continuous drainage operation can be achieved, the drainage efficiency is greatly improved, it is guaranteed that the drainage pressure of each time is the same, and therefore discomfort and even injury caused by changes of the drainage pressure to a patient are avoided; therefore, the drainage effect is improved.