8results about How to "Compression stability" patented technology

The utility model relates to the technical field of nitrogen springs, and discloses a feasible high-temperature-resistant water-cooling nitrogen spring structure which comprises a base, a water cooling mechanism is arranged at the top of the base, a water inlet and a water outlet are formed in the surface of the water cooling mechanism, an installation mechanism is arranged at the top of the base, and the water cooling mechanism comprises a cylinder barrel. And the cylinder barrel is arranged at the top of the base. According to the feasible high-temperature-resistant water-cooling nitrogen spring structure, the water cooling mechanism is arranged, water well type cooling is adopted, machining is easy, machining feasibility is high, the structure is firm and durable, the temperature of the nitrogen spring is controlled, and therefore the high-temperature risk is avoided, safety is improved, nitrogen is stably compressed, product stability is improved, the structure is simple, feasibility is high, and practicability is high. The device is simple in structure and convenient to machine, through the arrangement of the mounting mechanism and the arrangement of the water plate convenient to mount and dismount, when the water plate is damaged, the water plate can be dismounted and replaced in time, and it is ensured that the water plate can achieve the self function.

This utility model relates to the field of spring manufacturing equipment technology, specifically a long spring standing machine, including a rotating frame and a compression spring device. The bottom of the rotating frame is equipped with a drive motor and a reduction gear. The reduction gear meshes with a transmission gear ring on the side of the frame to achieve rotation of the rotating frame. Multiple fixed spring columns are evenly distributed on the top of the rotating frame. The compression spring device is located on one side and can be multiple in number, including a lifting frame, a motor frame, a lifting motor, a ball screw, and a pneumatic pump. The lifting motor drives the ball screw, causing the motor frame and pneumatic pump to move up and down. The compression spring tube at the end of the pneumatic telescopic rod is vertically aligned with the fixed spring column. A compression ring is installed inside the compression spring tube. A limiting tube is installed at the bottom of the fixed spring column to ensure stable spring compression. The bottom of the lifting frame is slidably mounted on a slide rail via a slider, and horizontal adjustment is achieved by a screw threaded rod driven by a rotating motor. This equipment has precise positioning, strong adaptability, and effectively improves the efficiency and quality of spring standing.

The application relates to the technical field of medical devices, and provides a quick fixing and releasing mechanism, which comprises a mounting seat, a rotating piece, an eccentric piece and an elastic piece, the eccentric piece is limited to rotate in the mounting seat, the elastic piece abuts one side of the eccentric piece, one end of the rotating piece is limited to rotate in the mounting seat and abuts one side of the elastic piece away from the eccentric piece; when the eccentric piece does not compress the elastic piece, the elastic piece is in a natural state, the rotating piece can rotate in the mounting seat, when the eccentric piece rotates to compress the elastic piece, the elastic piece abuts and presses one side of the rotating piece, and the rotating piece is fixed. Based on the quick fixing and releasing mechanism, the support pad can be conveniently relaxed or fixed, and the patient experience and nursing efficiency are improved.

This utility model discloses a real-time PCR instrument adapted to the placement of test tubes of different sizes. It relates to the technical field of real-time PCR instrument equipment. The instrument includes a main body with a mounting mechanism for test tube detection. The mounting mechanism includes a lifting component and a detection box connected to the main body via a sliding component. Test tubes of different sizes are inserted from top to bottom into a hole composed of a positioning ring and an arc-shaped ring. When the outer wall of the test tube contacts and presses downward against the positioning ring, the positioning ring compresses a spring, causing it to move. The spring's rebound force is converted into a uniform and gentle radial clamping force on the outer wall of the test tube, thus initially adapting to and holding the test tube, achieving initial positioning. The positioning force can automatically adjust according to the size of the test tube, achieving good positioning for test tubes of different diameters, improving the instrument's adaptability to test tubes of different specifications.

The utility model discloses a silkworm silk fixing device for silk quilt processing, including support station, the four corners of support station are fixed with guide sleeve no.

The invention discloses a necking press-fitting device in the field of mechanical assembly, and the necking press-fitting device comprises a first rack on which a lower pressing head is movably mounted; the second machine frame is fixed to the first machine frame, an upper pressing head which is coaxially arranged with the lower pressing head in space is fixed to the second machine frame, and the lower pressing head is stressed to be close to / away from the upper pressing head; the driving body is movably installed on the second rack through a follow-up assembly, and a compression assembly is arranged at the output end of the driving body; wherein the driving body drives to achieve bidirectional tightening of the compression assembly, and the spatial positions of the driving body and the lower pressing head are switched synchronously; according to the device, the notch closing effect on the lining is achieved through the compression assembly, the compression assembly and the lower pressing head are driven by the follow-up assembly to move synchronously, the necking-down lining is arranged in the installation opening of the swing arm, in this way, mechanical damage caused by conventional installation is avoided, and the service life of the device is prolonged.

The double-stage longitudinal distribution screw compressor comprises a first air cylinder, a second air cylinder, a connecting shell connected with the first air cylinder and the second air cylinder, a first male rotor, a first female rotor, a second male rotor, a second female rotor and a cooling assembly arranged in the connecting shell, wherein the first male rotor and the first female rotor are arranged in the first air cylinder, and the second male rotor and the second female rotor are arranged in the second air cylinder. The cooling assembly is arranged in the cooling cavity, cooling liquid conveyed by the third oil way can be atomized, compressed air can be more fully combined with the cooling liquid, efficient heat exchange and cooling are achieved, the temperature of gas subjected to first-stage compression is effectively controlled, and preparation is made for second-stage compression; the curved surface is arranged in the second air cylinder, air can be guided to be evenly distributed at all meshing positions between the female rotor and the male rotor during secondary compression, local pressure is prevented from being too high or too low, the air can be fully and stably compressed, meanwhile, heat can be evenly dissipated, and the overall cooling efficiency is improved.

The invention belongs to a helicopter assembly technology, and relates to a coaxiality installation and calibration method for a folding transmission shaft of a helicopter. A folding shaft is limited through a folding shaft length adjusting tool, a spring in the folding shaft is compressed through thread tightening, the length of the folding shaft is further shortened, the length of the folding shaft is made to be smaller than the assembling distance between the two sides, after the folding shaft is smoothly installed, the adjusting tool is gradually loosened, the spring is gradually loosened, the concave-convex fluted disc ends are meshed, and one end of a flange plate is in butt joint and fastened. After the folding shaft is mounted, a group of laser emission receivers are mounted at the two ends of the folding shaft through a bracket; through a disc paddle, the two laser emission receivers receive motion tracks of the two laser beams, actually-measured axes at the two ends of the folding shaft are simulated, the angle and position deviation of the two axes are calculated, and a model is generated; and calculating the thickness of an adjusting gasket below a folding shaft connecting end product according to fitting of the deviation model and a theoretical axis, and completing installation of the folding shaft according to a final state. After the folding shaft is installed, the acting force of the spring is released in the shaft system, and coaxiality calibration is carried out. The influence of the internal spring force on the axis calibration result after the folding shaft is installed in a traditional pre-calibration mode is avoided, and the calibration accuracy and the assembly efficiency are remarkably improved.