8results about How to "Avoid ups and downs" patented technology

This invention discloses a low-scattering carrier for testing the forward traveling wave (RCS) of absorbing materials, belonging to the field of low-scattering carrier shape design. It includes a carrier body composed of an upper surface, a lower surface, and two side surfaces. The upper and lower surfaces are seamlessly connected in the shapes of a triangle, a special trapezoid, and a rectangle, respectively. The two sides of the special trapezoid are convex arcs, and the two side edges of the triangle are connected to the corresponding side edges of the rectangle via corresponding convex arcs, forming a concave second-order curved surface. The vertices formed by the two side edges of the triangle on the upper and lower surfaces together serve as the forward tip of the carrier body, and the rectangular base edges of the upper and lower surfaces seamlessly overlap. The absorbing material to be tested is placed on the rectangular surfaces of the upper and lower surfaces. This invention can improve the accuracy of evaluating the RCS reduction performance of absorbing materials at different pitch angles.

The tobacco shred filling device comprises a table body, a tobacco shred material groove and a cigarette material groove are formed in the table body, the cigarette material groove is located on one side of the tobacco shred material groove, and a cigarette rotating roller is rotationally arranged at an end opening of the bottom end of the cigarette material groove; a contact pin entering short pipe and a cut tobacco discharging short pipe are arranged on the two sides of the cut tobacco material groove respectively and located on the same central axis, a contact pin is inserted into the contact pin entering short pipe, and the contact pin is driven by a pushing mechanism to make reciprocating telescopic motion in the contact pin entering short pipe; a material control mechanism used for enclosing tobacco shreds into a cylinder is arranged in the tobacco shred material groove, and an edge pressing mechanism used for pressing cigarette end openings on the tobacco shred discharging short pipe is arranged on one side of the tobacco shred material groove. According to the tobacco shred filling device, automatic filling of tobacco shreds is achieved, the filling efficiency is improved, and the electricity utilization cost is reduced.

This utility model discloses a raw material fabric cutting device for underwear production, including a cutting table. Two sets of support plates are fixedly connected to the cutting table, symmetrically distributed about the central axis of the cutting table. Two sets of tension rollers are arranged on the support plates, also symmetrically distributed. A mounting plate is provided on one side of the cutting table, parallel to the cutting table. A fixing plate is fixedly connected to one side of the mounting plate, and two sets of lead screws are rotatably connected to one side of the fixing plate. Each set of lead screws is threaded with a first connecting plate. This raw material fabric cutting device for underwear production solves the problem of hand muscle fatigue or injury caused by manual pressing of fabric, protecting workers' hands and enhancing the pressing and fixing effect on the fabric. This increases the accuracy of fabric cutting by the equipment, reduces safety hazards, and avoids accidental injury from the machine.

The application relates to a unified speed limiting method and device suitable for heavy-load railway mobile block train automatic driving, computer equipment, a readable storage medium and a program product, and relates to the technical field of heavy-load railway transportation. The application can improve transportation efficiency and reduce safety risks. The method comprises the following steps: traversing speed limiting information in the forward direction according to the running direction of a train; if it is detected that there is turnout speed limiting, the turnout speed limiting and the adjacent static speed limiting in the front are integrated into one continuous speed limiting integration section; the minimum value of the turnout speed limiting and the static speed limiting in the speed limiting integration section is taken as the first-round unified speed limiting value of the speed limiting integration section; the final speed limiting value of each speed limiting integration section is determined according to the first-round unified speed limiting value of each speed limiting integration section, in combination with temporary disclosed speed limiting and / or real-time vehicle body speed limiting in the range of each speed limiting integration section; a smooth and continuous unified speed limiting curve is generated based on the final speed limiting value of each speed limiting integration section; and the unified speed limiting curve is used for controlling train running.

The utility model discloses a sheet metal positioning cylinder. The sheet metal positioning cylinder comprises a cylinder body, a first mechanism, a second mechanism and a compression spring. The first mechanism comprises a taper pin pull head, a piston rod and a piston. The second mechanism comprises an inner taper face spring piece and a guide sleeve. The compression spring abuts against the lower end face of the guide sleeve. The taper pin pull head extends upward with the movement of the piston rod to be inserted into the positioning hole of the sheet metal. With the retraction of the piston rod, the inner taper face spring piece is pushed to expand radially and move downward. The inner taper face spring piece extends with the taper pin pull head to be inserted into the positioning hole of the sheet metal. With the retraction of the taper pin pull head, the inner taper face spring piece expands radially to grab the sheet metal and move downward to tighten the sheet metal for positioning. The utility model has the advantages of being suitable for smaller-diameter positioning holes, reducing production cost, eliminating mechanical interference and enhancing positioning stability.

The invention relates to the technical field of mining searchlighting, in particular to a movable underground mining construction safety searchlighting device which comprises a bottom plate, four sets of rollers are rotationally arranged at the lower end of the bottom plate, supports are rotationally connected to the two ends of the four sets of rollers, one end of each support is connected with the lower end of the bottom plate, and a camera is rotationally arranged at the upper end of the bottom plate. According to the device, through cooperation of the sleeves and the springs, the sleeves can be driven to contract when the inclined blocks make contact with protrusions on the inner wall of a mine hole, shaking is counteracted while impact force is absorbed, and the situation that the whole device jolts due to the protrusions on the inner wall of the mine hole is prevented; precision parts in the camera are protected, the equipment fault and damage risk is reduced, the service life of the device is prolonged, and meanwhile, a worker can observe the moving frequency and amplitude of the brightness of the spotlight through the visual angle of the camera and can visually judge the fluctuation degree of the inner wall of the mine hole.

The utility model belongs to the technical field of unmanned aerial vehicle remote sensing measurement, and particularly relates to an unmanned aerial vehicle remote sensing measurement mobile platform which comprises a mobile bearing vehicle body, a storage protection box is mounted on the mobile bearing vehicle body in a bearing mode, and a lifting platen is connected into the storage protection box in a lifting mode through a hydraulic lifting rod. A take-off platen is rotationally connected to one end of the lifting platen through a rotating shaft seat, a leveling mechanism used for adjusting the take-off platen to be horizontal and flat is arranged on the lifting platen, and a clamping and fixing mechanism used for limiting and fixing an unmanned aerial vehicle is installed on the take-off platen. The take-off bedplate is supported and adjusted through the leveling mechanism, so that the take-off bedplate rotates on the lifting bedplate, the take-off bedplate is horizontally and flatly adjusted in cooperation with the level gauge, and the problem that when an unmanned aerial vehicle takes off and lands, the take-off bedplate fails to take off or collides easily due to the fact that the take-off bedplate is not flat is solved; and by means of the clamping and fixing mechanism, the unmanned aerial vehicle can be well fixed, and damage to the unmanned aerial vehicle caused by shaking in the transportation work is prevented.

The utility model relates to aluminium roll production equipment technical field, and disclose a cold rolled aluminium roll production is with slitting device, including frame body, frame body bottom is equipped with support leg, is arranged transmission assembly on it, is equipped with guide, material and cutting assembly in proper order above along the transmission direction. The guide assembly is constituted by left and right material guiding box, and a plurality of horizontal support rods are arranged on the side of the material guiding box near the transmission assembly, and the rod end is equipped with the guide wheel through the bearing, and the other end is connected with the adjusting assembly. In the material pressing assembly, the both ends of the material pressing seat plate are connected with the frame body through the first hydraulic rod, and the lower middle part is equipped with the material pressing plate. The both ends of the cutting seat plate of the cutting assembly are supported by the second hydraulic rod, the lower middle part is equipped with the cutting base, the base bottom recess is equipped with the cutting knife through the rotating shaft, and the side is equipped with the second drive motor that drives the cutting knife rotation. The utility model effectively avoids the surface scratch of aluminium roll in the transmission process because of the dragging, guarantees the smooth operation of the slitting process, ensures the flexible contact of the guide wheel and aluminium roll, avoids the aluminium roll bending, guarantees the product quality after slitting.