106results about How to "Achieve friction" patented technology

The invention is a sliding way sleeve abrasion testing machine, which comprises a transmission system, an excitation system, a clamping system and a rack. A first test piece is fixed and clamped on a rotating transmission shaft of the transmission system; a second test piece is arranged corresponding to the first test piece on the clamping system and the transmission system drives the first test piece to rotate around the axis. The rack is provided with at least one sliding platform and the transmission system is arranged on the sliding platform. The excitation system can drive the sliding platform to vibrate up and down to drive the first test piece to impulse the second test piece while rotating. The testing machine overcomes the disadvantage of the prior abrasion testing machine which is incapable of satisfying the requirement on studying the impulse and sliding composite abrasion test between petroleum the drilling rod and the sleeve under the conditions of circulating medium and can perform systematic investigation on the impulse and sliding composite abrasion of various materials of large dimension between the petroleum the drilling rod and the sleeve.

The invention relates to a floating cylinder liner mechanism for a friction test of a cylinder liner and a piston in an ignition state. The lower end of an embedded cylinder cover (1) is connected with the upper ends of embedded intermediates (3) through upper embedded seam allowances (9), sealing copper pads (2) are connected between the embedded cylinder cover (1) and the embedded intermediates (3), the embedded intermediates (3) are provided with the upper embedded seam allowances (9) and step embedded grooves (10), and the step embedded grooves (10) of the embedded intermediates (3) are connected with the cylinder liner (6), cylinder cover bolts (7) are sequentially connected with the embedded cylinder cover (1), the embedded intermediates (3) and same-height support guide barrels (5), the piston (8) is arranged in the cylinder liner (6), and a pressure sensor is arranged between the cylinder liner (6) and a machine body. The floating cylinder liner mechanism can accurately and reliably realize floating of the cylinder liner (6) of a diesel engine in the ignition state and provide power supports for test and research of typical friction pair power consumption of a piston group of the cylinder liner.

The invention discloses an air-flow vortex balling machine for producing spherical graphite, which consists of a machine body, a balling drive device and an internal classification machine drive device, wherein an internal classification machine, a powder balling module and a cooling system are arranged in the machine body. In the invention, an internal balling module and a classification module are rationally arranged, and thus, the air-flow vortex balling machine for producing the spherical graphite is provided. The air-flow vortex balling machine can ensure that the graphite powder undergoes the physical processes of thinning, shearing, collision, friction, coiling, uniting and densification in an air-flow vortex balling room or can realize the combination of a physical balling process and a mechanical powder thinning process to prepare the spherical product. The indexes, such as sphericity, grain fineness distribution, tap density, apparent density, actual density and special surface area, of the spherical graphite powder can be controlled in the range of pre-determined values; the quality is stable; the yield can be improved by over three times; and over 50 percent of energy consumption can be reduced.

The invention discloses a self-cleaning flue gas treatment pipeline with a dynamic gas filter plate, and belongs to the field of flue gas treatment. The self-cleaning flue gas treatment pipeline withthe dynamic gas filter plate can generate a certain damping and force unloading effect on flue gas impact force through the arrangement of an inner variable layer, so that the dynamic gas filter plateis effectively protected from being damaged; meanwhile, a bidirectional movable through rod is arranged in the dynamic gas filter plate, and the repulsive force effect generated by a reverse thrust net on the bidirectional movable through rod is matched, so that when the flue gas inlet speed is continuously changed, the bidirectional movable through rod can continuously move left and right, and therefore the friction effect on the inner walls of the pores of the dynamic gas filter plate is achieved, the pores are continuously blocked while the flue gas is filtered, the blocking can be achieved without stopping the filtering process of the flue gas, and then the filtering efficiency of the flue gas is remarkably improved; and under the action of a fluctuation blocking layer, the blocking effect of the bidirectional movable through rod on the dynamic gas filter plate is more obvious.

The invention discloses a testing system for fibrous material friction characteristics in a normal or low temperature environment. The system comprises a tensile testing machine, a strain acquisition device, a testing device and a monitoring and control system, the testing device comprises a testing tube, clump weights and a testing support, the testing tube is horizontally placed on the testing support, after cellosilk is wound around the testing tube a round, a clump weight is hung on the lower end of the cellosilk, and the upper end is connected with the strain acquisition device; the testing system further comprises a U-shaped Dewar type container, the testing device is located in the U-shaped Dewar type container, the Dewar type container contains liquid nitrogen, and the whole testing device is immersed in the liquid nitrogen; the invention provides a testing method for the fibrous material friction characteristics in the normal or low temperature environment at the same time. A traditional force sensor is replaced by the strain acquisition device to capture micro-deformation in the friction process of the cellosilk, the test temperature of a low temperature is provided by the Dewar type container, and therefore the tests of the friction property of the cellosilk in the normal environment and in the low temperature environment are achieved.

Abrasion resistance testing equipment for textile materials comprises a first motor, a rotating plate, a friction mechanism, a second motor, a driving gear, a mounting frame, a mounting cover, a supporting frame, a control panel, a supporting table and a rack. The first motor and the second motor are both arranged on the mounting frame, the first motor is in driving connection with the rotating plate, and the second motor is in driving connection with the driving gear; the multiple friction mechanisms are evenly arranged around the rotating center shaft of the rotating plate, each friction mechanism comprises a driven gear, a rotating shaft, a friction table and an installing mechanism used for installing the friction table, the surfaces of the multiple friction tables in the multiple friction mechanisms are different in granularity, the installing mechanisms are connected with the rotating shaft, and the driven gears are arranged on the rotating shafts. The rotating shaft is rotationally arranged on the rotating plate, and the driven gear in the friction mechanism located at the lowest position is in engaged connection with the driving gear; and the mounting frame is arranged on the mounting cover. Friction tables with different friction granularities can be switched, and therefore friction of different degrees can be conducted on textile materials.

The invention discloses an automated certificate making device. The automated certificate making device comprises a certificate box, a printer, a certificate drawing mechanism and a certificate feeding mechanism, wherein the certificate feeding mechanism is arranged at the certificate feeding end of the printer and comprises a certificate feeding wheel module for driving certificates in and out ofthe printer, the certificate feeding wheel module comprises a paper pickup wheel and a certificate feeding pressure wheel opposite to the paper pickup wheel, and the certificate feeding mechanism also comprises an electromagnetic lock for controlling the certificate feeding pressure wheel to move up and down. According to the automated certificate making device, the certificate feeding mechanismcan adjust the height of certificate feeding pressure wheel through the electromagnetic lock to control the friction between the certificate feeding pressure wheel and the surface of the certificatesaccording to the adjusted height of the certificate feeding pressure wheel, thereby being applicable to the certificates of different thicknesses; a first vacuum sucker module moves blank certificatesout of a certificate outlet at the top of the certificate box to avoid drawing out neighboring certificates along; when the first vacuum sucker module sucks paper up, a page turning rod moves horizontally to achieve certificate page turning, and a hairbrush brushes over pages to avoid page adhesion during page turning.

The invention discloses an energy conversion type buffer bracket comprising a main bottom support baseplate. According to the energy conversion type buffer bracket, a spiral spring used for buffer support, and the movement effect caused by vibration can be converted into friction between components; thus, elasticity and rebounding are reduced by using the friction force, namely that the buffer support is implemented in an energy conversion mode, and the buffer effect of the bracket is better; the protection and working stability of component equipment is higher; the bracket is provided with apiston plate type longitudinal pressure liquid drive mechanism, and internal hydraulic oil can be enabled to flow under the effect of top pressure directionally, so that the driving effect is achieved; the bracket is provided with a piston plate type horizontal liquid pressure driven mechanism, and the longitudinal pressure is converted into a bidirectional horizontal pressure under the effect ofliquid, so that a fictional component is driven; the bracket is provided with a bolt mounting gantry type top pressure mechanism, and necessary pressure can be provided by using the elasticity of thespiral spring; and the friction effect between the components is achieved.

The invention discloses a screening device for plastic masterbatch. The screening device comprises a box body, a connecting box is arranged on the upper side of the box body, a moving plate is arranged on the outer wall of the connecting box in an inserting mode, a connecting plate is fixedly connected with the end, located in the connecting box, of the moving plate, a plurality of brush heads arefixed on the lower side wall of the connecting plate, a limited plate is fixed on the outer wall of the end, located in the connecting box, of the moving plate, two expansion springs are fixed between the side, away from the connecting plate, of the limited plate and the inner wall of the connecting box, a fixing plate is fixed on the outer wall of the connecting box, a first motor is fixed at the end portion of the fixing plate, and an incomplete gear is fixed at the driving end of the first motor. According to the screening device for the plastic masterbatch, by scraping a resin raw material and guiding the resin raw material to a screen, rolling of a vertical raw material is achieved through up and down swing of the screen, impurities in the resin raw material are removed, cleaning ofthe resin raw material is achieved, and the quality and properties of plastic masterbatch produced subsequently are ensured.

The invention relates to a roller stretching assembly of a workstation of a textile machine that processes staple fibers. The roller stretching assembly is used for stretching at least one cluster-type staple fiber strand that enters the assembly in a conveying direction. The roller stretching assembly has at least one stretching region, which is defined by a roller assembly at an entrance and a roller assembly at an exit, wherein the roller assembly at the entrance includes a feeding roller and feeding cooperation roller that work together, and the roller assembly at the exit includes a delivering roller and a delivering cooperation roller that work together. The roller stretching assembly includes an annular belt which is wound around the feeding roller and a belt guide member spaced from the feeding roller in the conveying direction so as to be guided. The annular belt is provided with at least one fastened fiber guide element that has at least part of elastic sections and that is fixed in position. During running of the roller stretching assembly, the fiber guide element presses the staple fiber strand facing the section that extending between the feeding roller and the belt guide member, and matches the contour of the annular belt on the at least part of the sections.

The invention relates to a dental material abrasion tester, in particular to a simulated chewing composite resin material abrasion tester. The simulated chewing composite resin material abrasion tester consists of a moving device, a pair grinding coupling and a frame, wherein the moving device and the pair grinding coupling are connected to the frame; the moving device is connected with a specimenclamp for fixing a specimen; the specimen clamp can be lifted and rotated repeatedly relative to the frame, and can move close to or far from the pair grinding coupling; the pair grinding coupling can rotate relative to the frame; and one side of the pair grinding coupling close to the specimen clamp is provided with an abrasive for simulating food. The simulated chewing composite resin materialabrasion tester provided by the invention has the characteristics that the occlusion contact and friction process between the specimen and the pair grinding coupling are carried out intermittently respectively, and meanwhile a low-hardness soft abrasive and the elastic pair grinding coupling are adopted, so that the technical problems of uneven wear of the specimen and inconsistence between the surface abrasion pattern and the actual clinical situation are solved.

The invention provides a pickup device for a straw baler, and belongs to the field of agricultural baler devices. The pickup device comprises a machine frame, a rotating assembly, retainer assembliesand elastic claw assemblies. The rotating assembly is erected on the machine frame and rotationally connected with the machine frame. The elastic claw assemblies are fixedly arranged on the rotating assembly. The retainer assemblies are arranged on the outer ring of the rotating assembly. The retainer assemblies are arranged between every two adjacent elastic claw assemblies. A follower wheel assembly is arranged at the lower end of the machine frame. Supporting force arms are symmetrically arranged at the upper end of the machine frame. One end of each supporting force arm is hinged to the machine frame. The other end of each supporting force arm is provided with a floating wheel. A floating roller is erected on the symmetrical supporting force arms and rotationally connected with the supporting force arms. A positioning rod is arranged on each supporting force arm and provided with a plurality of comb teeth. The upper end of each positioning rod is provided with a limiting chain connected with a fixing piece. The pickup device is simple in structure, low in cost, high in carding efficiency, not prone to getting stuck, low in failure rate and stable in performance.

The invention provides a grinding disc used in a horizontal grinding machine. The grinding disc is of a three-layer sandwich structure, a sandwich layer is a first manganese steel layer, two sides ofthe sandwich layer are provided with first composite layers, the side, close to the sandwich layer, of each first composite layer is provided with a first permanent magnet layer, the side, away from the sandwich layer, of each first composite layer is provided with a first rubber layer, and the surface field intensity of each first rubber layer is 10-30 mT. Two sides of the grinding disc are eachprovided with four arc-shaped stirring blades. Each stirring blade is of a three-layer sandwich structure, wherein a sandwich layer of the stirring blade is a second manganese steel layer, two sides of the second manganese steel layer are provided with second composite layers, the side, close to the second manganese steel layer, of each second composite layer is provided with a second permanent magnet layer, the side, away from the second manganese steel layer, of each second composite layer is provided with a second rubber layer, and the surface field intensity of each second rubber layer is10-30 mT. Magnetite layers can be formed through the low field intensity, so that the grinding disc and the stirring blades are protected, and the service life of the horizontal grinding machine is prolonged.