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124 results about "Friction test" patented technology

Textile fabric wear resistance testing device

The invention relates to the technical field of detection equipment, in particular to a textile fabric wear resistance testing device which comprises a base, a multi-unit friction mechanism and an auxiliary mechanism are arranged on the base, each unit friction mechanism comprises a pressing block inserted into the inner wall of the base in a sliding mode, and the pressing blocks are used for pressing cloth. And a mounting frame for driving the friction unit to rotate is mounted on the inner wall of the top of the pressing block. Through the arranged multi-unit friction mechanism, in the process that a mounting frame drives a grinding block and a grinding disc to revolve, the grinding block slides in a reciprocating mode in the radial direction, meanwhile, an impact rod continuously impacts cloth at the circle center, and a second gear drives the grinding disc to rotate; therefore, friction tests in different forms can be carried out on circumferential areas with different radiuses of the cloth, the test effect is greatly improved, the contingency of a detection result is prevented, and the conditions that the friction form of a detection mode in the prior art is relatively single, the detection mode is difficult to adapt to different types of cloth, and the detection effect is relatively poor are avoided.
Owner:XUZHOU XINPEI TEXTILE TECHNOLOGY CO LTD

Titanium fire friction test device and test method for compressor blade

The invention provides a gas compressor blade titanium fire friction test device and test method. The gas compressor blade titanium fire friction test device is used for testing the flame retardant property of a blade sample piece of a gas compressor, and is characterized by comprising a first rotating piece, a second rotating piece and a friction piece, wherein the friction piece is arranged on the first rotating piece; the blade sample piece is assembled on the second rotating piece, and the blade sample piece and the friction piece are arranged to be opposite to each other; the first rotating part can rotate in a first direction, and the second rotating part can rotate in a second direction opposite to the first direction; in the rotating process of the first rotating piece and the second rotating piece, the friction piece makes contact with the blade sample piece, and then the blade sample piece is rubbed. The test device can better simulate the working environment of the high-pressure compressor.
Owner:AECC COMML AIRCRAFT ENGINE CO LTD

Printing ink abrasion resistance tester

The utility model relates to the technical field of ink friction tests, and discloses an ink abrasion resistance tester which comprises a main machine, a placing plate is fixedly installed on the outer wall of the main machine, a moving rod is fixedly assembled on the outer wall of the main machine, a fixing block is movably connected to the outer wall of the moving rod in a sleeved mode, and a weight is fixedly assembled on the top of the fixing block. And a fixed shell is fixedly mounted at the top of the placement plate, and an extension shell is fixedly mounted on the outer wall of the fixed shell. By rotating a second threaded rod, the second threaded rod drives a telescopic plate to move towards the bottom of an inclined block through a transverse plate, the inclined block is jacked up through attachment of the inclined block and the telescopic plate, then the inclined block drives a first magnet to move upwards, and at the moment, an ink sample is placed on the top of a second magnet; a telescopic plate is retracted by rotating a second threaded rod, then a first magnet is pressed downwards through a spring, the first magnet is attached to the top of the ink sample, and then the ink sample is fixed through attraction force of the first magnet and the second magnet.
Owner:MAITREYA DAFENG TECH CO LTD

High-temperature friction testing device for hydraulic slide valve

The invention discloses a high-temperature friction testing device for a hydraulic slide valve. The device is composed of a valve element clamping module, a valve body mounting module, a vertical force applying module, a high-temperature heating module and a friction force applying module. The valve element clamping module is composed of a valve element, a valve element centering fixing column, a valve element fixing clamp, a valve element mounting rod and a mounting rod fixing shell. The valve body mounting module consists of an oil storage tank, an oil storage tank fixing plate and a valve body; the vertical force applying module comprises X, Y and Z three-axis guide rails driven by a motor, and pressure and friction force sensors; the high-temperature heating module surrounds the whole valve body and the valve core mounting part; the friction force applying module is driven by a motor to drive the oil storage tank to achieve axial movement of the valve body, and relative friction between the valve element and the valve body is achieved. The device can carry out friction tests of the hydraulic slide valve at different temperatures, realizes friction wear simulation of the hydraulic slide valve under multiple working conditions of oil environment, high temperature, pollution and the like, and provides data support for wear and degradation tests of the hydraulic slide valve.
Owner:ZHEJIANG UNIV

Airbag cloth friction coefficient testing device

The utility model discloses a device for testing the friction coefficient of air bag cloth. The device comprises a test board, a movable arm, a friction block and a clamping block, supporting rods are vertically arranged at the two ends of one side of the top of the testing table and penetrate through guide holes in the two sides of the clamping block, the clamping block is installed on one side of the top of the testing table in a liftable mode through sliding fit between the guide holes and the supporting rods, and a first sliding groove extending in the horizontal direction is formed in the rear side of the testing table. The bottom end of the movable arm is movably installed in the first sliding groove through a sliding connection structure, a second sliding groove extending in the vertical direction is formed in the upper portion of the front wall of the movable arm, a sliding block is slidably installed in the second sliding groove, and a lifting arm is fixedly installed at the front end of the sliding block. According to the utility model, by controlling the motion trails of the movable arm, the lifting arm and the friction block, seamless switching between precise positioning and bidirectional friction testing of a test part can be realized, operation errors and efficiency loss caused by manual adjustment are avoided, and the test efficiency and the data reliability are remarkably improved.
Owner:ANHUI XINNANGANG AUTOMOTIVE INTELLIGENT SAFETY PARTS CO LTD

A piston ring-cylinder liner friction test system

ActiveCN115248122BPiston ringSteel ball
This invention relates to a piston ring-cylinder liner friction testing system, comprising a piston ring, a cylinder liner, a piston ring-cylinder liner fixing assembly, a piston ring-cylinder liner heating assembly, a lubricating oil supply assembly, and a power assembly. The piston ring-cylinder liner fixing assembly includes a housing, an elastic thrust rod, steel balls, a tension / compression sensor, a bracket, and a piston ring clamp. The bracket is located on the single-cylinder engine of the power assembly, and the housing is located on the bracket. An annular oil groove is provided on the inner wall of the bottom of the housing, and an oil outlet communicating with the annular oil groove is provided at the bottom of the housing. The cylinder liner is located inside the housing, with its sidewall facing the annular oil groove. The lubricating oil supply assembly includes an oil supply passage and an oil supply cap. The cap is located inside the cylinder liner, with its perimeter edges close to the inner wall of the cylinder liner. The cap has an oil supply port, providing circumferential oil supply to the cylinder liner. The testing system is located outside the single-cylinder engine, eliminating the need to modify the internal structure of the engine, thus saving costs and simplifying experimental operation.
Owner:HEBEI UNIV OF TECH

Performance testing device and testing method for oil pipe and cable assembly for oil and gas well

The invention belongs to the technical field of oil and gas exploitation, and particularly relates to a performance testing device and method of an oil pipe and cable assembly for an oil and gas well, and the device achieves the active, accurate and repeatable simulation of the sag of an oil pipe through the cooperation of a first lifting mechanism, a second lifting mechanism and a self-adaptive displacement assembly. Uncontrollability caused by natural droop depending on gravity in a traditional method is overcome; through cooperation of the first displacement assembly and the adjusting assembly, rapid and accurate alignment of a friction test point and a maximum droop point and stepless accurate regulation and control of test pressure are realized, so that a cable wear resistance test result is more scientific and has higher comparability; and the measurement mechanism is combined with the second displacement assembly, so that automatic and high-precision scanning measurement of the overall deflection curve of the oil pipe is realized, and low-efficiency and inaccurate manual measurement is replaced. The whole device is highly integrated and automatic, and the test efficiency, the data consistency and the reliability are remarkably improved.
Owner:CHENGDU YUKAIJIA PETROLEUM TECHNOLOGY CO LTD

A fixture structure for a carbon brush friction test bench

This utility model discloses a carbon brush friction test bench fixture structure, including a clamping seat for clamping carbon brushes and a fixing seat. The fixing seat includes a base plate and two side plates fixed to the upper side of the base plate. Each of the two side plates has a first through hole, and the clamping seat has a second through hole. The clamping seat is inserted between the two side plates. A clamping nut is screwed onto the threaded end of a clamping bolt after passing through the first and second through holes. The clamping seat of this utility model is rotatably and adjustablely mounted on the fixing seat via the clamping bolt, allowing for convenient adjustment of the carbon brush angle. Once the angle is adjusted, the clamping bolt is tightened, thereby fixing the clamping seat and the fixing seat.
Owner:CHINA YANGTZE POWER

Plastic film wear resistance detection device

The invention provides a plastic film wear resistance detection device, and relates to the technical field of plastic film detection, the plastic film wear resistance detection device comprises a bottom frame, a tooth pressing mechanism, a fixing mechanism, a lifting table, a friction mechanism and an adsorption mechanism, the bottom frame is provided with an unwinding piece and a winding piece, and the tooth pressing mechanism is used for pressing tooth mark lines on a plastic film roll; and the fixing mechanism is used for separating the part enclosed by the tooth mark lines from the plastic film roll and fixing the sample. The lifting table is installed on one side of the fixing frame, the friction mechanism and the adsorption mechanism are located on the two opposite sides of the lifting table respectively and can switch the relative positions, when the friction mechanism is located on the upper portion of a plastic film, a friction test is conducted on the plastic film, and the positions of the adsorption mechanism and the friction mechanism are switched after the test is completed. And the sample is adsorbed through the adsorption mechanism to judge whether the sample meets the wear-resistant requirement. According to the invention, the continuous test of the whole roll of plastic film can be realized, each sample can be conveniently detected after the test is finished, and the detection result can be conveniently and quickly obtained after the detection is finished.
Owner:SICHUAN XINKANG YIZHONGSHEN NEW MATERIALS CO LTD

Oral orthodontic correction arch wire friction corrosion test system

The invention belongs to the technical field of new material detection, and discloses an orthodontic correction arch wire friction corrosion test system, which comprises a controller, a mechanical excitation device and an electrochemical workstation, and is characterized in that the controller controls the electrochemical workstation to apply polarization pulses to form an ion sheath for neutralizing friction charges; the method comprises the following steps: firstly, carrying out mechanical damage and electrochemical response on the surface of a material, then controlling a mechanical excitation device to apply single instantaneous mechanical scratch, immediately triggering an electrochemical workstation after the scratch is finished, and recording an electrochemical relaxation transient process of spontaneous repassivation of the surface of the material in a static environment without mechanical interference. The technical problem that the dynamic repairing capacity of the material cannot be accurately evaluated due to signal aliasing in an existing continuous friction test is solved, and the obtained data is no longer a fuzzy average value but a clear dynamic fingerprint containing rich physical mechanisms.
Owner:JIAMUSI UNIVERSITY

Sneaker sole bearing capacity testing device

A sports shoe sole bearing capacity testing device comprises a base, an extrusion mechanism, a crank rocker mechanism, a resilience force testing mechanism, a friction force testing mechanism and a central control unit. The base is provided with a horizontal reference plane; the extrusion mechanism comprises a translation fixed sliding table, a vertical pressing assembly and a horizontal pushing assembly; the crank rocker mechanism is arranged on the driving side of the sliding table, consists of a servo motor, a turntable and a driving rod, and can drive the sliding table to translate; the resilience force testing mechanism is located on the opposite side of the moving end point of the sliding table and comprises a horizontal moving platform, an adjusting lead screw and a horizontal pressure tester coaxial with the moving direction of the sliding table. The friction force testing mechanism is arranged below the extrusion mechanism and is composed of a replaceable simulation test board, a movable guide rail and a friction force tester, and the guide rail is rigidly connected with the base; the central control unit is in signal connection with the servo motor and the two types of pressure testers, a programmable multi-test-mode switching module is arranged in the central control unit, and switching of multiple test modes can be achieved.
Owner:JINGMEN KANGDING SHOE MATERIAL CO LTD

Friction resistance testing device of calender

The utility model relates to the field of wear resistance of calendaring machines, in particular to a friction resistance testing device of a calendaring machine, which comprises a working table, a supporting plate connected to the upper side of the rear part of the working table, a connecting plate connected to the supporting plate in a sliding manner, two preformed holes formed in the left and right parts of the connecting plate, and grooves formed in the upper sides of the left and right parts of the supporting plate, a rolling assembly is connected to the lower portion of the connecting plate, a limiting piece is installed on the upper side of the workbench, a circle of sliding groove is formed in the limiting piece, six guiding pieces are connected into the sliding groove in a sliding mode, and connecting pieces are connected to the guiding pieces. Through the arrangement of the rotary connecting piece and the three testing modules, a plurality of material modules are allowed to be tested at the same time, the testing efficiency is improved, the abrasion resistance of different materials can be compared, the position of the calendering assembly can be adjusted according to the material modules with different thicknesses through the combination of the reserved holes and the grooves, and the testing efficiency is improved. The optimal tightness of each test is ensured, and the adaptability of the device is enhanced.
Owner:SHENZHEN BAIYING NEW MATERIAL TECH CO LTD

Friction coefficient testing device for injection molding product

The utility model relates to the technical field of friction testing, and discloses a friction coefficient testing device for injection molding products, which comprises a friction coefficient tester and a test placing plate mounted in the middle of the top of the friction coefficient tester, and sliding plates are fixedly connected to two sides of the top of the friction coefficient tester. According to the utility model, during testing, the U-shaped pressing plate is rotated, pressed and fixed on one side of the mouse pad, then the pull handle is pulled, the U-shaped sliding rod is triggered to drive the linkage assembly to slide, and the smoothing block automatically falls to be attached to the surface at a specific position by utilizing the mechanical cooperation of the spring and the guide rod, so that the mouse pad is flattened, and the test efficiency is improved. And when the U-shaped sliding rod abuts against the limiting position, the smoothing block and the U-shaped lower pressing plate form bidirectional elastic clamping, finally, a test weight is hung according to needs, a friction test is driven by a traction sensor, data are displayed on a tester in real time, and the accuracy and reliability of the friction coefficient test of the injection molding mouse pad are remarkably improved.
Owner:SHAANXI YONGXIN PACKAGING CO LTD

Stacked body, optical member with stacked body, and image display device

The present application provides a laminate capable of achieving excellent slidability regardless of whether or not a user's finger is wetted with water, an optical member with the laminate, and an image display device. The laminate of the embodiment of the present application has a substrate and a functional layer disposed on one side in the thickness direction of the substrate, and the static friction coefficient and the kinetic friction coefficient of the functional layer surface measured using a contact wetted with water are both 0.13 or less in a specific friction test based on a Bowden method of surface contact.
Owner:NITTO DENKO CORP

A device for testing the abrasion resistance of plastic film

This invention provides a device for testing the abrasion resistance of plastic films, relating to the field of plastic film testing technology. It includes a base frame, a tooth-pressing mechanism, a fixing mechanism, a lifting platform, a friction mechanism, and an adsorption mechanism. The base frame is equipped with an unwinding component and a rewinding component. The tooth-pressing mechanism is used to press tooth marks onto the plastic film roll. The fixing mechanism is used to detach the portion enclosed by the tooth marks from the plastic film roll and fix the sample. The lifting platform is installed on one side of the fixing frame. The friction mechanism and the adsorption mechanism are located on opposite sides of the lifting platform and their relative positions can be switched. When the friction mechanism is located on the upper part of the plastic film, a friction test is performed on the plastic film. After the test, the positions of the adsorption mechanism and the friction mechanism are switched, and the adsorption mechanism adsorbs the sample to determine whether the sample meets the abrasion resistance requirements. This invention enables continuous testing of an entire roll of plastic film. After each sample test, convenient testing can be performed, and test results can be obtained quickly and easily.
Owner:SICHUAN XINKANG YIZHONGSHEN NEW MATERIALS CO LTD

Abrasion resistance testing device suitable for piston sealing ring

The utility model belongs to the technical field of wear resistance testing devices, and particularly relates to a wear resistance testing device suitable for a piston sealing ring, which comprises a testing cabinet and a control panel arranged on the surface of the testing cabinet, one side of the testing cabinet is connected with a supporting bottom frame, one side of the testing cabinet is connected with a rotating shaft, and the rotating shaft is connected with a rotating shaft. According to the piston sealing ring testing device, the limiting plate is stretched outwards, then a piston sealing ring to be tested is connected to the clamping end of one end of the clamping block, at the moment, the first linkage plate connected with the limiting plate pulls the clamping spring to be elastically stretched, the piston sealing ring to be tested is clamped in the clamping spring, and then the piston sealing ring to be tested is clamped in the clamping spring. The piston sealing ring to be tested is rapidly clamped and stabilized, then the air cylinder is driven to enable the piston sealing ring to be close to the abrasive paper wheel, friction testing is conducted on the piston sealing ring through rotation of the abrasive paper wheel, and then the abrasion loss is weighed through the electronic scale. And the wear resistance of the piston sealing ring can be accurately known.
Owner:XUZHOU JIULONG SEAL TECH CO LTD

Friction test device and method applied to the study of the inhibition of the creep

The application provides a friction experiment device and method applied to inhibiting crawling research. The device comprises a motion control device, a balancing device, a friction device structure, a data acquisition device and a control unit. The application controls a stepping motor to realize low-speed motion, detects displacement and friction force change trends when crawling occurs, provides different system stiffness by using a spring, records friction force and displacement changes of a friction pair during motion, evaluates the crawling degree of the friction pair, and finds out measures for inhibiting crawling. The structure is simple, and observation is convenient.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Thickened carbon dioxide fluid friction resistance testing system and method

The invention relates to the technical field of oil and gas exploitation, and discloses a thickened carbon dioxide fluid flow friction resistance testing system and method. The method comprises the following steps: S1, liquefying carbon dioxide gas into liquid carbon dioxide; s2, preparing the liquid carbon dioxide, a cosolvent and a thickening agent into a thickened carbon dioxide fluid, and recording the density as shown in the specification; s3, the thickened carbon dioxide fluid is introduced into the testing pipeline, the flow speed of the thickened carbon dioxide fluid introduced into the testing pipeline is as follows, and the pressure difference of the thickened carbon dioxide fluid flowing through the inlet end and the outlet end of the testing pipeline is recorded; s4, calculating the friction resistance coefficient according to a formula (1), wherein D is the diameter of the test pipeline; l is the length of the test pipeline; s1 and S2 are the solubility of the cosolvent and the thickening agent in the liquid carbon dioxide. The invention creatively provides a friction coefficient calculation formula, and the numerical relationship between the friction of the thickened carbon dioxide fluid in the shaft and each parameter can be quickly calculated and evaluated according to the formula.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

Multi-station rubbing color fastness instrument

ActiveCN224202994UFast testWidely applicable to dry and wet rubbing color fastness testingUsing mechanical meansMaterial analysisColour fastnessCrank
The utility model relates to a multi-station rubbing color fastness instrument which comprises a test board, a driving box, a force arm and a crank connecting rod mechanism, the crank connecting rod mechanism comprises a crank and a connecting rod, one end of the connecting rod is hinged to the crank, and the other end of the connecting rod is hinged to the right side of the force arm. A Y-shaped fixing seat is arranged on the front side of the force arm, the Y-shaped fixing seat is integrally formed and comprises a central connecting section and friction head mounting sections which are symmetrically arranged, the connecting section is connected with the force arm, each friction head mounting section is provided with a friction assembly, and the two friction assemblies are arranged in the same longitudinal direction. And front and back symmetrical distribution is realized. According to the utility model, a double-station design is adopted, and two tests are completed at one time, so that the test efficiency is greatly improved, and the test speed of the rubbing color fastness in a laboratory is improved; the friction test in the longitudinal and latitudinal directions can be carried out through the rotation of the rotary cloth clamping table.
Owner:JIANG SU CHENG XIN JIAN YAN JIAN CE REN ZHENG GU FEN YOU XIAN GONG SI

Friction test device for plastic products

The utility model discloses a friction test device for plastic products, which comprises a testing machine, a movable rod is mounted on a swing rod of the testing machine in a longitudinal sliding manner, a friction block is mounted at the lower end of the movable rod, and in a test state, the swing rod drives the movable rod to swing on the plastic products in a reciprocating manner. The movable rod is installed on the swing rod of the testing machine in a longitudinal sliding mode, the friction block is installed at the lower end of the movable rod, when a plastic product with a curved surface is tested, the swing rod drives the movable rod to swing in a reciprocating mode, meanwhile, the movable rod freely slides up and down, and therefore a friction test can be conducted in a self-adaptive curved surface structure.
Owner:HUBEI LONGQUAN MACHINERY

Device and method for measuring dynamic and static friction coefficients of irregular granular materials

This invention relates to the field of interfacial friction testing technology for particulate materials, and provides a device and method for measuring the static and dynamic friction coefficients of irregular particulate materials. The method includes: obtaining static and dynamic friction forces based on the effective friction torque, the time interval during which the tip of the Reuleaux triangular grinding ring sweeps against the bottom of the square constraint cavity, and the stable time interval during which the long arc end of the Reuleaux triangular grinding ring sweeps against the bottom of the square constraint cavity, and then obtaining the static and dynamic friction coefficients. The device and method of this invention should be able to simulate the compaction, embedding, sweeping, and restarting processes of particulate materials within a confined gap, obtaining static, dynamic, static, and dynamic friction forces, and the static and dynamic friction coefficients within the same particle placement state and the same test cycle. It also possesses multi-condition testing capabilities, including atmospheric pressure without liquid, atmospheric pressure with liquid or drilling fluid, and vacuum without liquid, thereby providing a basis for evaluating the anti-slip ability, anti-migration ability, environmental sensitivity, and wellbore reinforcement suitability of particulate materials.
Owner:中国石油大学(北京)克拉玛依校区 +1

Brake pad friction performance multi-working-condition rapid bench testing machine

The invention discloses a brake pad friction performance multi-working-condition rapid bench testing machine, and relates to the technical field of brake pad performance testing equipment. A continuous brake wear test assembly, a multi-working-condition simulation friction test assembly, a clamping and positioning assembly, a grabbing and transferring assembly and a feeding and discharging conveying assembly are arranged on the test bench; the multi-working-condition simulation friction test assembly comprises a high-temperature test module and a wet test module and can simulate the friction state of the brake pad under different working conditions, and the continuous brake wear test assembly is provided with a transverse wear test rotating wheel and can perform wear resistance test; the grabbing and transferring assembly achieves automatic transferring of the brake pad through a multi-axis mechanical arm and a self-adaptive clamping jaw, and the clamping and positioning assembly can achieve accurate positioning and clamping of the brake pad. The problems of low test efficiency, large data deviation, high operation and maintenance cost and the like caused by discontinuous multi-working-condition test, inaccurate working condition simulation, unreliable clamping and positioning, low data acquisition and analysis efficiency, loose structure and inconvenience in maintenance of existing equipment are solved.
Owner:SHANDONG JINLI NEW MATERIAL TECH CO LTD

Device for detecting wear resistance of washable water ribbon

The utility model discloses a washable water silk ribbon wear resistance detection device which comprises a detection table, silk ribbon fixing mechanisms are installed on the two sides of the top of the detection table, a supporting frame is arranged between the two silk ribbon fixing mechanisms, an electric sliding rail is installed between the supporting frame and the detection table, and a driving piece is fixedly installed on the top of the supporting frame. The output end of the driving part penetrates through the supporting frame and is connected with a detection mechanism, the detection mechanism comprises an installation plate, a friction detection assembly and a scratch detection assembly, the friction detection assembly and the scratch detection assembly are installed on the two sides of the bottom of the installation plate, and a switching assembly is arranged between the friction detection assembly and the scratch detection assembly. The switching assembly is used for switching the friction detection assembly and the scratch detection assembly to be in contact with the washable water silk ribbon, so that the friction test and the scratch test of the washable water silk ribbon can be realized, the friction test and the scratch test are completed on one device, and the wear resistance detection efficiency is improved.
Owner:HUZHOU LINGXIAN SILK RIBBON CO LTD

Modularized dynamic friction test device and test method

According to the modularized dynamic friction test device and method, key test pieces such as a friction ring support, a shifting wheel and a friction ring in the device are all designed to be independent detachable modules with standard interfaces, rapid replacement is achieved through connection modes such as bayonets, the use number of actual product parts is greatly reduced, and the test efficiency is improved. And the processing cost and period are reduced. Besides, the friction ring is of a stepped shaft type positioning and pressing structure, unified reference positioning is achieved through a stepped hole and a standard connecting piece, re-centering is not needed after replacement, and repeatability and reliability of test data are guaranteed. The device is simplified in overall structure, convenient to operate and suitable for tribological performance testing in the fields of solid material surface engineering, coating technologies and the like.
Owner:XIAN KUNLUN IND GRP

Mechanical seal end face friction test device and method capable of quickly adapting to different shaft diameter and pressure conditions

The invention discloses a mechanical seal end face friction test device and method capable of quickly adapting to different shaft diameter and pressure conditions. The device comprises a base assembly, a main shaft system, a driving system, a movable ring clamping mechanism, a static ring adjusting mechanism and a pressure loading module. The moving ring clamping mechanism is of a chuck type structure, and a sliding body is driven to move in the radial direction by rotating a chuck connecting shaft so as to rapidly clamp moving rings with different shaft diameters. The static ring adjusting mechanism drives the multiple reduction blocks to synchronously and radially move by rotating the rolling lead disc, and precise clamping and centering of static rings with different shaft diameters are achieved. And the pressure loading module adopts a replaceable pressurizing spring and a slidable adjusting sliding block, so that the axial pressure applied to the static ring can be flexibly adjusted. According to the invention, rapid clamping and efficient testing of mechanical sealing rings of different specifications are realized, and the testing efficiency and the data reliability are obviously improved.
Owner:JIANGSU UNIV OF SCI & TECH

Pile foundation negative friction test system and method

The invention provides a pile foundation negative friction testing system and method, and belongs to the fields of geotechnical engineering, roadbed engineering and the like. According to the test system, the soil sample is vertically loaded, the electronic platform scale arranged below the simulation pile is used for obtaining negative friction test data, and the test system is simple and convenient. The pile foundation negative friction test system comprises a model box, a vertical loading unit and a data acquisition unit, the model box is used for placing a simulation pile and a soil sample at the periphery of the simulation pile; the vertical loading unit is used for vertically loading the soil sample through a top hydraulic bag; and the data acquisition unit monitors the vertical load change of the simulation pile through an electronic platform scale arranged below the simulation pile.
Owner:SOUTHWESTERN ARCHITECTURAL DESIGN INST

Abrasion resistance test device for food packaging bag

The utility model discloses a food packaging bag wear resistance test device which comprises a fixed table and a translation support, a friction table is arranged on the fixed table, a plurality of different friction surfaces are arranged on the friction table, an installation frame is connected to the translation support in a sliding mode, a packaging bag clamping mechanism is arranged on the installation frame, and the friction surfaces are arranged on the installation frame. The mounting frame is located above the friction table, a reciprocating driving mechanism is arranged between the mounting frame and the translation support, the translation support is slidably connected with the ground, the friction test of the packaging bag can be closer to the real life through different friction surfaces, and test data are more effective.
Owner:FENGDA PACKAGING PROD (JIAXING) CO LTD

A high temperature friction testing device for hydraulic spool valves

The application discloses a high-temperature friction testing device for a hydraulic slide valve. The device is composed of a valve core clamping module, a valve body mounting module, a vertical force applying module, a high-temperature heating module and a friction force applying module. The valve core clamping module is composed of a valve core, a valve core centering fixing column, a valve core fixing clamp, a valve core mounting rod and a mounting rod fixing shell. The valve body mounting module is composed of an oil storage tank, an oil storage tank fixing plate and a valve body. The vertical force applying module includes X, Y and Z three-axis guide rails driven by a motor, and pressure and friction force sensors. The high-temperature heating module surrounds the valve body and the valve core mounting part. The friction force applying module is driven by a motor to drive the oil storage tank to realize the axial movement of the valve body and the relative friction between the valve core and the valve body. The device can conduct the friction test of the hydraulic slide valve under different temperatures, realize the friction and wear simulation of the hydraulic slide valve under the working conditions of oil environment, high temperature and pollution and the like, and provide data support for the wear and degradation test of the hydraulic slide valve.
Owner:ZHEJIANG UNIV

Lubricating oil friction testing device

The utility model discloses a lubricating oil friction testing device, which relates to the technical field of testing devices and comprises a supporting plate, a plurality of supporting legs are fixedly connected to the outer wall of the bottom of the supporting plate, and a testing mechanism is arranged on the outer wall of the supporting plate. According to the utility model, through the arrangement of the connecting rods and the second connecting rod, in the moving process of the detection device, the detection device can drive the plurality of connecting rods to move and drive the second connecting rod to rotate around the positioning seat, and because the connecting rods and the second connecting rod can only rotate transversely and cannot rotate longitudinally, the detection device is convenient to operate, and the detection device is convenient to use. Therefore, complete contact between the detection device and the surface of the storage box is guaranteed, the movement range of the detection device is limited through a connecting rod and a second connecting rod, and the situation that in friction detection, if the detection device is insufficient in stability and is prone to shaking, pressure borne by a friction head is not uniform is prevented. And the measured friction force data is not accurate.
Owner:SICHUAN GAOLONG MASCH CO LTD