8results about How to "Reduce static friction" patented technology

This invention relates to the field of oil extraction technology and discloses an oil extraction drill pipe fixing device, including a support base. A limiting block is fixedly connected to the side wall of the support base. During the placement of the slips, the slider is subjected to the squeezing force from the support base, and the slip slides relative to the support base. After sliding along the inclined surface, the horizontal straight distance between the bottom of the slider and the limiting block becomes shorter, and the limiting block can just hold the bottom of the slider. After placement, the limiting rod is pushed to slide into the limiting groove, so that the limiting can be performed at the same time as the slip is installed. When it is removed after use, the operation can be reversed. This avoids the slip being subjected to a large upward impact force that would quickly push the slip out of the wellhead when the well pressure is too high or during a blowout, thus reducing the response time and improving the slip's blowout prevention capability and extending the response time.

The invention relates to a plastic product production waste recovery device, and relates to the technical field of resource recovery, the plastic product production waste recovery device comprises a conveying assembly comprising a containing part, a conveying part and an inflation part, the containing part is provided with a containing cavity, the conveying part is provided with a plurality of conveying channels, the containing cavity is communicated with the conveying channels, and the inner wall surface of each conveying channel is provided with a plurality of blowing channels; the air blowing channels are distributed in the circumferential direction, and air outlets of the inflation parts communicate with the air blowing channels; a plurality of air blowing channels are formed in the peripheral face of the rotating shaft, the negative pressure cavity communicates with the air blowing channels, and the air exhaust part is arranged in the negative pressure cavity and communicates with the air blowing channels; the pressing and taking assembly and the mechanical arm are fixed to the moving block, the other end of the pushing cylinder can be arranged outside the rotating shaft in a sleeving mode and drive the winding piece to move along the radial inner side, the pressing block is fixed to the mechanical arm and can press the plastic product, and the hook claw is fixedly arranged on the side face, facing the plastic product, of the pressing block, so that the plastic product is compressed. Therefore, the utilization rate of the plastic product storage space is improved.

The invention relates to the technical field of medical auxiliary instruments, in particular to a ureter distortion auxiliary supporting guide wire which comprises an extension guide wire, a position guide wire, a guide wire head and a connecting sleeve seat. The position guide wire is provided with an expansion base ring and at least three sets of plate type expansion assemblies driven by a pneumatic mechanism I. The plate type expansion assemblies drive arc-shaped expansion plates to swing through tooth bars, point type and controllable expansion of the narrow portion of the ureter is achieved, and the problems of mucous membrane damage and complete lumen blockage caused by large-area contact of a traditional air bag are solved. And meanwhile, an air cavity and at least three groups of radial movement positioning assemblies driven by a pneumatic mechanism II are arranged in the guide wire head, and an arc-shaped positioning plate is pushed by a multi-stage telescopic cylinder to extend out in the radial direction to form multi-point contact with the inner wall of the renal pelvis, so that stable anchoring of the guide wire head is realized. The operation injury risk can be effectively reduced, smooth perfusion is guaranteed, and the positioning stability of the guide wire in the renal pelvis is improved.

The utility model discloses a kind of anti-static filter bag support, it is related to anti-static filter bag field, including fixed mounting plate, mounting lug seat and support ring, the quantity of fixed mounting plate is two, the mounting lug seat is integrally formed in the front end of fixed mounting plate, the support ring is located in the middle of two mounting lug seats, the side of mounting lug seat is threadedly installed with adjusting installation knob. The utility model can adjust the left and right positions and use angle of support ring, so that the support can be quickly adapted to different installation space, avoid the deformation or static electricity accumulation of filter bag due to position deviation, automatic opening mechanism ensures that filter bag does not collapse in use, reduces the generation of frictional electrostatic, filter bag is outwardly pried open after installation, maintains stable airflow distribution, reduces electrostatic discharge risk, simultaneously through the setting of lifting installation structure, lifting sleeve ring slides along extension mounting rod, fastens position by positioning knob, can freely adjust the height of filter bag mounting plate according to filter bag size.

Described herein is a photonic motor comprising: a first optical waveguide arrangement adapted to guide at least one optical mode and form a stator (12); and an electromagnetic interaction device electromagnetically interacting with the optical modality, configured for rotation and forming a rotor (14), the electromagnetic interaction device comprising a plurality of optical resonators or a plurality of reflective metal structures or a combination thereof, the electromagnetic interaction device being concentrically positioned inside the first optical waveguide device, and the first optical waveguide device is separated from the first optical waveguide device by a preset transverse interaction distance, and the preset transverse interaction distance is suitable for establishing coupling of an optical mode and evanescent waves of the plurality of second optical resonators or enabling the evanescent waves of the optical mode to be reflected by the plurality of reflection metal structures. The rotor comprises a circular frame (22) coaxial with the central hub (20) and comprising spokes (R) in an integral arrangement converging towards the central hub, the spokes being adapted to support a region (24) for accommodating a plurality of second optical resonators or for accommodating a plurality of reflective metal structures in a peripheral region of the frame. The frame is separate from the central hub and disposed above the substrate (S), in a non-operational state, the frame can be supported on the substrate by a support structure (26), and in an operational state in which the optical mode is guided in the first optical waveguide arrangement of the stator, the frame can be raised from the substrate.

This invention discloses a highly integrated passive impact-resistant flexible joint, relating to the field of robot drive and flexible transmission technology. It includes a stator assembly comprising a first and second base arranged opposite each other, a core sphere made of a non-magnetic, highly conductive material, rotatably positioned between the first and second bases, with internal wiring channels and countersunk holes on its surface communicating with these channels, and a magnetic array assembly. Utilizing the eddy current effect generated by a non-magnetic conductor cutting magnetic lines of force, upon encountering external high-frequency impacts, it instantaneously generates a reverse electromagnetic torque proportional to the velocity, achieving non-contact, highly efficient energy absorption and braking. Simultaneously, it reduces static friction to improve control precision: when stationary or undergoing low-speed fine-tuning, the system operates in a state of extremely low mechanical friction, eliminating static friction interference from traditional damping devices at the physical level, thus giving the robot extremely high motion reproduction accuracy.

The utility model discloses a drum screen with a screen hole cleaning function, which comprises a mounting table, a screen barrel body arranged above the mounting table, a driving device arranged on the mounting table and a vibrating mechanism mounted on the mounting table, the vibrating mechanism comprises four groups of mounting rods, each mounting rod is provided with a mounting groove, a sliding rod is arranged in every two groups of mounting grooves in a sliding manner, and the screen barrel body is arranged on the mounting table. Reset parts are installed in the sliding rods, a beating roller is arranged between the two sets of sliding rods, beating assemblies are arranged on the installation rods, and a cleaning mechanism is arranged between the two sets of installation rods. Through the synergistic effect of the vibrating mechanism and the cleaning mechanism, efficient anti-blocking and continuous cleaning of the screen holes are achieved, so that the screening efficiency is remarkably improved, compared with traditional single vibrating screening equipment, the double anti-blocking mechanism can reduce the blocking probability of the screen holes and is particularly suitable for materials which are large in viscosity or prone to caking, and in addition, the screening efficiency is improved. Energy consumption in the screening process can be reduced through continuous and smooth screen holes, motor overload caused by blockage is avoided, and the comprehensive efficiency is improved.

The application relates to a fixing device for steel structure roof insulation layer construction, which comprises an insulation layer body, a sleeve frame arranged on the front surface and the left side surface of the insulation layer body, an insertion strip arranged on the right side surface and the back surface of the insulation layer body, a guide part arranged on the edge of the opening of the inner wall of the two ends of the sleeve frame, and a clamping fixing structure arranged on the insertion strip and the sleeve frame for fixing adjacent insulation layer bodies. When the insulation layer bodies are fixed and installed, the insertion strip on the insulation layer body is inserted into the sleeve frame on the adjacent insulation layer body, the clamping frame is directly pushed into the first clamping groove under the elastic force of the first spring, the fixed and installed work of the insulation layer bodies can be realized, the operation is more labor-saving and convenient, and the fixed and installed work efficiency is improved.