Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

327results about "Machine sealing rings testing" patented technology

Sealing aging test device for multi-environment simulation

The utility model provides a sealing aging test device for multi-environment simulation. The sealing aging test device comprises an upper end cover, a lower end cover, a gasket, a to-be-tested sealing ring and a sealing ring, the gasket is arranged between each stage of lower end cover and the upper end cover, the to-be-tested sealing ring is arranged between each stage of lower end cover and the gasket, and the sealing rings are arranged between the gasket and each stage of upper end cover and between the middle upper end cover and the middle lower end cover; the end covers are connected through bolts, and the gaskets are in interference fit connection or threaded connection with the upper end covers; the end cover center hole channel forms a first flow channel, the outer side hole channel forms a second flow channel, and flow channel isolation is achieved through a sealing ring. The aging conditions of the sealing ring under different compression amounts can be tested by adjusting the thickness of the gasket, the influence of different unbalance loading forces on the aging performance of the sealing ring can be tested by adjusting the gradient of the first end face of the gasket, and the aging conditions of the sealing ring under different working conditions can be simulated by inputting media into the two flow channels. Multiple groups of upper and lower end covers can be continuously added in the device.
Owner:YANSHAN UNIV

Sealing ring inner diameter detection device and inner diameter detection method thereof

The invention discloses a sealing ring inner diameter detection device and an inner diameter detection method thereof.The sealing ring inner diameter detection device comprises an outer taper pipe and a guide pipe, the guide pipe and one end of the outer taper pipe can be connected in an inserted mode, the outer circumferential face of the guide pipe is movably sleeved with a push pipe, the outer taper pipe is a pipe with the diameter gradually changing from small to large, and when the guide pipe and the outer taper pipe are connected in an inserted mode, the push pipe is inserted into the guide pipe. The small-caliber end of the outer taper pipe is arranged in the push pipe, scales are arranged on one side of the outer taper pipe side by side, and the outer taper pipe is sleeved with a sealing ring. The device is simple in structure and convenient to operate, can quickly and accurately measure the inner diameter of the rotary Glyd ring, and can detect the roundness, elasticity, wear degree, hardness and other performances of the rotary Glyd ring at the same time.
Owner:GUANGZHOU FLUID SEALING TECH

Large-size sealing ring automatic feeding detection device and detection method

The invention relates to the technical field of sealing ring detection, in particular to a large-size sealing ring automatic feeding detection device and detection method.The large-size sealing ring automatic feeding detection device comprises two sets of elastic traction structures which are installed on a transfer part, and supporting sleeve parts penetrating through the transfer part are installed on the elastic traction structures in a sliding mode; the coaxial wheel sets are rotationally mounted on the two sides of the supporting sleeve piece; the side plate is fixedly installed on the transfer part, a driving plate is installed on the side plate in a sliding mode, a guide groove and a driving groove are formed in the side plate and the driving plate respectively, and a coaxial wheel set can roll in the guide groove and the driving groove; when the driving plate moves upwards relative to the side plate, the supporting sleeve part can be conveyed to the middle of the clamping wheel, and when the clamping wheel is separated from the transfer part, the clamping wheel can push the supporting sleeve part to move reversely and enable the sealing ring to be arranged on the clamping wheel in a sleeving mode, so that the phenomenon that the clamping wheel is disengaged when the rubber ring is tensioned is prevented, and the service life of the sealing ring is prolonged. And the transferring stability of the rubber rings is improved.
Owner:常州市五源塑胶有限公司

Abrasion test device for reciprocating dynamic seal of actuator cylinder

The invention discloses a wear test device for reciprocating dynamic sealing of an actuator cylinder, and belongs to the technical field of actuator cylinder sealing wear test equipment.The wear test device comprises a main frame body and a test mechanism movably connected to the main frame body, a replaceable to-be-tested actuator cylinder structure is arranged on one side of the main frame body, and the test mechanism comprises a moving rod; the upper end and the lower end of the moving rod are provided with a limiting assembly and a counterweight assembly respectively, the moving rod is provided with a connecting piece, and the connecting piece is hinged to one end of a piston rod in the actuator cylinder structure to be tested. According to the method, the conventional motion of the output end of the actuator cylinder in a static state and the external non-axial acting force borne by the output end of the actuator cylinder in a dynamic state can be simulated, the reliability of the sealing ring in actual work can be comprehensively evaluated through combination of the two, verification is carried out from multiple dimensions, potential risks can be found, and the requirements of safety specifications in the fields of aviation, industry and the like are better met.
Owner:SHENYANG TUNAN INTELLIGENT MFG CO LTD

Strength detection equipment for rubber sealing ring

The utility model discloses strength detection equipment for a rubber sealing ring, and relates to the technical field of strength detection of rubber sealing rings. The device comprises a rectangular bottom plate, wherein a limiting mechanism and a fixing mechanism are arranged on the rectangular bottom plate; two supporting plates are fixedly connected to the top of the rectangular bottom plate, a two-way threaded rod is rotationally connected between the two supporting plates, the right side of the two-way threaded rod rotationally penetrates through the outer wall of the supporting plate located on the right side and extends to the outer side, and two moving blocks are connected to the outer wall of the two-way threaded rod in a threaded mode. According to the utility model, through the arrangement of the limiting mechanism, the problems that the deviation of an initial measurement point is caused by inconvenience in accurate alignment and limiting, and the deviation is amplified in the stretching process, so that the finally measured stretching length data is inaccurate, and the actual stretching performance of the sealing ring is inconveniently and truly reflected are solved.
Owner:JIANGSU HYDROGEN NEW ENERGY TECH CO LTD

Electroplating fixture, electroplating device, and electroplating fixture detection method

An electroplating fixture, an electroplating device and an electroplating fixture detection method. The electroplating fixture comprises a holding cylinder and a sealing ring, wherein the inner wall of the holding cylinder is provided with an annular boss configured to support a wafer; the sealing ring wraps the annular boss and extends from the annular boss to the cylinder wall of the holding cylinder; and a gas channel is provided in the cylinder wall of the clamping cylinder, the opening of the gas channel is arranged at the position where the clamping cylinder is wrapped by the sealing ring, and whether the sealing ring is damaged can be determined by pumping gas through the gas channel. The electroplating fixture can be used for reliable wafer electroplating.
Owner:ACM RES (SHANGHAI) INC

Rubber O-shaped ring compression stress relaxation test device

The invention discloses a rubber O-shaped ring compression stress relaxation test device which comprises an O-shaped ring mounting base, four circles of annular grooves are sequentially formed in the center of the O-shaped ring mounting base from outside to inside, a rubber O-shaped ring is arranged in the fourth circle of annular groove, a gasket is arranged above the rubber O-shaped ring, a force measuring sensor is arranged on the gasket, and the force measuring sensor is connected with the O-shaped ring mounting base. The force measuring sensor is tightly connected with the O-shaped ring mounting base through a fixing piece and a plurality of counterbores; the force measurement sensor is in wireless or wired connection with the data acquisition system; two flow guide holes and a temperature measuring hole are formed in the groove bottom of the second ring of annular groove, a temperature measuring sensor is inserted into the temperature measuring hole, the head of the temperature measuring sensor penetrates into the second ring of annular groove, and the tail of the temperature measuring sensor is connected with a thermodetector through a temperature measuring data connecting line; the oil temperature machine is communicated with the two flow guide holes through an oil conveying pipeline, and an oil pump is arranged on the oil conveying pipeline. The environment temperature of the rubber O-shaped ring can be controlled, and the actual working condition of the rubber O-shaped ring in lubricating oil can be simulated.
Owner:ZHEJIANG UNIV OF TECH

Method for Determining the Wear Volume of a Sliding-Ring Seal in Singular Wear Events by Means of High-Temporal-Resolution Temperature Measurement

A method for determining wear volume of a mechanical seal includes measuring a temperature at a seal face or seat of the mechanical seal with high temporal resolution. An area under a function of a measured temperature profile in a case of short-term temperature changes which are less than 60 s, compared with a normal temperature, which corresponds to a temperature profile of a mechanical seal without wear, is determined by measuring the temperature profile with subsequent integration of a function of the measured temperature profile. The area being multiplied by a mechanical seal-specific factor in order to calculate the wear volume.
Owner:KSB SE & CO KGAA

Rubber sealing ring performance detection equipment

The invention discloses rubber sealing ring performance detection equipment which comprises a bearing structure, a driving unit, a testing assembly and a force application structure. The driving unit is fixedly arranged on the bearing structure, the testing assembly is fixedly arranged on the bearing structure, and the force application structure is fixedly arranged on the rear side of the bearing structure. Through collaborative design of a driving unit and a bearing structure, a first motor is used for driving a gear to perform meshing transmission, a driving disc is driven to synchronously adjust two pairs of moving seats which are arranged diagonally through an inclined shifting groove, and mounting of bearing rings with different diameters can be flexibly adapted; meanwhile, the pressing ring can be matched with the specification of the bearing ring through a quick disassembly and assembly structure of the locking arm and the clamping and locking unit to realize synchronous replacement, and the detection of the sealing rings with different diameters can be completed without disassembling the whole set of fixture, so that the equipment adaptation range is greatly expanded, and the equipment investment cost of multi-specification detection is reduced.
Owner:CHAOYANG JIAHUA ELECTRONICS

Marine electric cabinet silicone rubber sealing detection device

The invention relates to a marine electric cabinet silicone rubber sealing detection device which comprises a simulation box, a cover plate covers the simulation box, two vertical plates are fixedly mounted at the upper end of the simulation box, a concentric-square-shaped plate is arranged between the two vertical plates, a lifting mechanism for lifting the concentric-square-shaped plate is arranged on the vertical plates, and two fixing plates are arranged in the concentric-square-shaped plate. Scales matched with the fixing plate are engraved on the concentric-square-shaped plate, a stretching mechanism used for stretching the fixing plate is arranged in the concentric-square-shaped plate, a clamping mechanism used for clamping silicone rubber is arranged on the fixing plate, and a detection mechanism used for detecting the surface of the silicone rubber is arranged in the concentric-square-shaped plate. The lifting mechanism comprises a through hole formed in the vertical plate, the concentric-square-shaped plate is in sliding connection with the through hole, a lifting screw is rotationally connected into the through hole, and a lifting motor is installed on the vertical plate. Compared with the prior art, all environments of the sealing element are simulated, the resilience force, the surface protrusion, the surface depression and the tensile deformation degree of the sealing element are detected, and the sealing detection effect on the sealing element is good.
Owner:DEZHOU HENGLI ELECTRICAL MASCH CO LTD

Device and method for detecting performance of rubber sealing ring

The invention relates to the technical field of rubber sealing ring performance detection devices, and provides a rubber sealing ring performance detection device and method, the rubber sealing ring performance detection device is matched with a rubber sealing ring to form a corresponding detection function structure, the detection universality is better, the application environment simulation form of the rubber sealing ring is richer, and the practicability and the universality are remarkably improved. Comprising a detection mechanism and further comprises a main body mechanism, the main body mechanism comprises a main body frame, a mounting frame is fixedly connected to the main body frame, an upper position adjusting structure, a lower position adjusting structure and an electric telescopic rod are mounted on the mounting frame, and the electric telescopic rod provides operation power for the upper position adjusting structure and the lower position adjusting structure; the upper position adjusting structure and the lower position adjusting structure are provided with an upper adjusting pressing frame and a lower supporting bracket respectively, the detection mechanism comprises an annular frame, a camera and an air pump, the annular frame is rotationally connected into the main body frame, the camera is installed in the annular frame, a first servo motor is installed outside the main body frame, and the first servo motor is used for driving the annular frame to rotate.
Owner:HEBEI YOULIAN RUBBER PROD CO LTD

Testing device for underground sealing element

The invention provides a testing device for an underground sealing element. The testing device comprises a detection part and an input part, a sealing cavity used for simulating the underground environment is formed in the detection part, and an assembling cavity used for assembling a sealing piece and a detection cavity used for detecting leakage are further formed in the detection part. Before the sealing element is assembled, the sealing cavity is communicated with the detection cavity through the assembling cavity. After the sealing element is assembled, the sealing cavity and the detection cavity are separated by the sealing element. The detection part can drive the sealing element to rotate so as to measure the torque of the sealing element. The output end of the input part communicates with the sealing cavity, and slurry under the preset pressure and the preset temperature can be conveyed into the sealing cavity through the input part so as to control the pressure and the temperature of the sealing cavity. And the detection part can also detect the existence condition of slurry in the detection cavity so as to measure the failure leakage condition of the sealing element. The underground environment and the working state of the sealing element can be simulated, so that a large amount of experimental data can be obtained, and the usable time of the sealing element can be accurately mastered in advance.
Owner:CHINA NAT PETROLEUM CORP +2

Multi-working-condition reciprocating sealing ring modular testing device

The utility model provides a multi-working-condition reciprocating sealing ring modularization testing device, which relates to the technical field of fluid transmission sealing and comprises a first end cover, a second end cover, a sealing testing block, a piston rod, a sealing shell and a pressure sensor. The sealing test block is arranged in the sealing shell; the middle end of the piston rod is in contact with the inner side wall of the sealing test block; a first mounting opening is formed in the center of the first end cover, the second end cover is arranged in the first mounting opening, the outer side wall of a boss of the first end cover is in contact with the inner side wall of the end part of the sealing shell, and the inner side wall of the boss of the first end cover is in contact with the sealing test block. According to the utility model, through the arrangement of the sealing test block and the sealing shell, the device can carry out rapid replacement test on sealing rings with different sizes and types under different working conditions.
Owner:YANSHAN UNIV

Device for applying and measuring friction torque of main sealing surface of graphite circumferential seal in zero-speed state

The invention discloses a graphite circumferential sealing main sealing surface friction torque applying and measuring device in a zero-speed state, which comprises an excitation shaft, an excitation bearing, a tension spring force measuring assembly, a runway assembly, a transmission pin, a split graphite ring, a sealing seat assembly and a sealing cavity, one end of the tension spring force measuring assembly is connected with the supporting accessory, the other end of the tension spring force measuring assembly is connected with the runway assembly to provide tension, the transmission pin is arranged on the runway assembly, the extending end of the transmission pin can make contact with a circumferential static pressure groove of the split type graphite ring to transmit torque, the sealing cavity is fixedly installed on the supporting accessory, and the sealing seat assemblies are fixedly installed on the two sides of the sealing cavity. By using the tension spring assembly and the transmission pin, the friction torque of the graphite circumferential seal can be transmitted during high-frequency vortex excitation, so as to simulate the abrasion condition of the graphite ring anti-rotation groove and the spring groove caused by high-frequency excitation in the actual working condition, and explore the abrasion rule and the sealing performance of the contact type graphite circumferential seal device.
Owner:ZHEJIANG UNIV OF TECH

Creeping detection device for bearing sealing ring

The utility model discloses a rolling bearing sealing ring creeping detection device, and relates to the technical field of rolling bearing sealing ring creeping detection. The device comprises a base, a bearing seat, a shaft sleeve, a limiting block, a transmission shaft and other main components. Wherein the bearing seat is used for fixing a to-be-tested bearing, the shaft sleeve is marked with a circumferential angle mark for determining the rotation angle of the transmission shaft, the limiting block is used for limiting the axial position of the transmission shaft, one end of the transmission shaft is connected with the sealing ring clamping assembly, and the other end is connected with the force application assembly. The sealing ring clamping assembly is composed of a sealing ring base and a sealing ring gland and used for fixing the sealing ring. The force application assembly is used for simulating the creeping process of the sealing ring. According to the technical scheme, the wriggling condition of the bearing sealing ring is accurately detected, so that the detection stability and accuracy are ensured, the performance of the bearing sealing ring can be evaluated, and the design of the bearing sealing ring can be optimized.
Owner:LUOYANG LYC BEARING

Tension testing device for O-shaped rubber sealing ring

The utility model relates to the technical field of rubber sealing rings, and discloses an O-shaped rubber sealing ring tension testing device which comprises a base, a mounting groove is formed in the right side of the top of the base, the surface of a lead screw is in threaded connection with a threaded block, and the left end of the top of the threaded block is fixedly connected with a first drag hook. A baffle is fixedly connected to the left side of the top of the base, a tension meter is arranged on the left side of the baffle, a second pull hook is arranged at the right end of the tension meter, a mounting block is fixedly connected to the left side of the top of the base, a threaded rod is in threaded connection with the interior of the mounting block, and a limiting block is fixedly connected to the inner side of the threaded rod. The installation block, the threaded rod and the like are arranged to be matched with the baffle for use, the threaded rod is rotated to drive the limiting block to be separated from the tension meter, locking of the tension meter is relieved, at the moment, a worker can replace the tension meter, operation is easy and convenient, the whole testing device does not need to be replaced, the use cost is reduced, and the worker can use the device conveniently.
Owner:LUZHOU CHANGJIANG HYDRAULIC SEAL CO LTD

Floating performance test platform for floating ring seal

The invention belongs to the technical field of floating ring seal testing, and particularly relates to a floating ring seal floating performance testing platform which comprises a carrier plate, supporting plates are fixedly connected to the two sides of the bottom of the carrier plate, a base is arranged on the lower side of the carrier plate, and connecting plates are fixedly installed on the two sides of the top of the base. A support is installed on one side of the top of the carrying plate, a first servo motor is fixedly installed on one side wall of the support, a transmission shaft of the first servo motor movably penetrates through the support and is fixedly connected with a second positioning shell, and a fixing block is installed on the other side wall of the top of the carrying plate. In the testing process, a second lead screw motor is used for driving a second lead screw to rotate, so that a stirring piece can be driven to move in a reciprocating mode, oil liquid on the two sides can be stirred to be mixed, the oil liquid on the two sides in a first positioning shell and a second positioning shell is evenly mixed in the testing process, and the testing efficiency is improved. Therefore, the temperature of two sides is ensured to be consistent, and the test accuracy is prevented from being influenced by over-high local temperature.
Owner:AVIC POWER ZHUZHOU AVIATION PARTS MFG

An aero-graphite seal assembly o-ring failure simulation device and method

The application discloses an aviation graphite sealing assembly O-shaped sealing ring failure simulation device and method, and particularly relates to a method for simulating working environment including oil medium, working pressure, working temperature, working time and part deformation, clamping the O-shaped sealing ring by using the same O-shaped sealing ring clamp as the part structure, putting into a container filled with the same oil medium as the working time, heating according to certain conditions until the O-shaped sealing ring fails, and deducing the possible failure reason of the O-shaped sealing ring, which is suitable for aviation equipment graphite sealing assembly maintenance and fault elimination. The technical method and device overcome the shortcomings that the pressure of the oil medium is not considered and only the single axial deformation of the O-shaped sealing ring is considered in the commonly used GB / T 1690-2010 test method, and can more accurately simulate the O-shaped sealing ring failure critical temperature.
Owner:STATE-OWNED SICHUAN WEST MASCH FACTORY

A high pressure pulse seal test test platform

This application discloses a high-pressure pulse sealing test platform, relating to the field of rubber and plastic sealing pulse technology. The high-pressure pulse sealing test platform includes: a test fixture for supporting the seal to be tested; a pressurization system including a large oil tank assembly, the large oil tank assembly having a first pipeline connected to the oil inlet of the test fixture, the first pipeline having a large gear pump set, an accumulator, a servo valve, and a pressurization cylinder arranged sequentially along the direction close to the test fixture; and an oil replenishment system, where oil discharged from the oil outlet of the test fixture is filtered by the oil replenishment system and then delivered to the oil inlet of the test fixture; wherein the degree of leakage of the test fixture is characterized by the change in piston displacement of the pressurization cylinder.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP

Oil seal failure monitoring system and monitoring method for driving motor and vehicle

The invention provides an oil seal failure monitoring system and monitoring method for a driving motor and a vehicle, and relates to the technical field of sealing monitoring of driving motors. The system comprises a first data acquisition assembly and a control unit, the data acquisition assembly is arranged on one side, facing a motor cavity, of an oil seal, is adjacent to or in contact with a gap area on the side of a rotating shaft of the motor, and is used for acquiring a first liquid immersion signal of the gap area when liquid intrudes into the motor cavity of the driving motor through the failed oil seal; and the control unit is in communication connection with the data acquisition assembly and is used for receiving the first liquid immersion signal and outputting an oil seal failure early warning signal based on a preset liquid immersion judgment logic. The first data acquisition assembly is directly arranged in the gap area on the inner side of the oil seal, the first liquid immersion signal can be immediately acquired when liquid initially intrudes due to failure of the oil seal, and the control unit gives out early warning based on liquid immersion judgment logic, so that the problem of oil seal failure fault discovery lagging in related technologies is remarkably solved.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Detection equipment for sealing strip

The utility model relates to the technical field of sealing strip detection equipment, in particular to sealing strip detection equipment, which comprises a base, air cylinders are fixedly embedded at four corners of the top end of the base, the output ends of the air cylinders extend to the upper part of the base and are fixedly connected with a cover body, a U-shaped seat is fixedly arranged at the top end of the base, and the U-shaped seat is fixedly connected with the cover body. The device comprises a U-shaped seat, a movable seat is slidably arranged on the U-shaped seat, first clamping blocks are fixedly arranged on the inner wall of the lower portion of one side of the U-shaped seat and the lower portion of one side of the movable seat, second clamping blocks are slidably arranged on the inner wall of the lower portion of one side of the U-shaped seat and the lower portion of one side of the movable seat, and a hydraulic cylinder is fixedly embedded in the other side of the U-shaped seat. According to the sealing strip tensile property detection device, the tensile property and the salt mist resistance of a sealing strip can be conveniently detected, the device is convenient to move, the applicability of the device is improved, and therefore the practicability of the device is effectively improved.
Owner:CHANGSHU KANGXIANG ELECTRONIC TECH CO LTD

Rotating article appearance inspection apparatus and rotating article appearance inspection method

The O-ring appearance inspection apparatus of the present invention is an appearance inspection apparatus for inspecting an O-ring K, and includes a plurality of line sensor cameras whose positions and orientations are preset to image-capture the O-ring K, and a holding device that holds the O-ring K and has a head unit rotatable about a rotation axis C1, wherein the holding device sequentially moves the O-ring K to a plurality of image-capturing positions P respectively corresponding to the plurality of line sensor cameras, and rotates the head unit about the rotation axis C1 at each image-capturing position P to rotate the O-ring K in a circumferential direction.
Owner:DAIICHI JITSUGYO VISWILL

Performance detection equipment for marine fastening sealing element

The invention relates to a performance detection device for a marine fastening sealing member, and relates to the technical field of fastening sealing members, the performance detection device comprises a machine body and a detection device, the detection device comprises: a detection cylinder, the top of which is provided with a detection hole; the plugging mechanism is used for plugging the detection hole; the positioning piece I and the positioning piece II are arranged in the detection cylinder and on the plugging mechanism, the two pipe bodies are respectively inserted and mounted on the positioning piece I and the positioning piece II for positioning, and seawater for detection is filled in the detection cylinder; the sealing mechanism is used for sealing the two pipe bodies; the adjusting mechanism enables seawater to submerge the joint of the two pipe bodies and adjusts the pressure of the seawater; and a detection mechanism. The two pipe bodies are connected with the first positioning piece and the second positioning piece in an inserted mode for positioning, the adjusting mechanism is started to drive seawater to submerge the fastening sealing piece, the pressure is adjusted so that the detection environment of the fastening sealing piece can be closer to the actual working condition, it can be guaranteed that the performance of the fastening sealing piece is stable and reliable, and the detection quality and efficiency are improved.
Owner:ZHEJIANG WANZHONG IND TECH CO LTD

Position monitoring of a gasket between tunnel segments

A method and sensor system for monitoring in time a geometric property of a gasket (32, 34) that sealingly interconnects two structural members (20, 21) of a subterraneous or immersed tunnel (10). The system includes a sensor (42) for measuring position indications for surface portions (48) of the gasket relative to a reference (26, 27, 47) associated with one or both structural members, and a processor (44) that is coupled with the sensor to receive the position indications. The processor is configured to derive indications of displacement (ΔΥ) for each of the gasket surface portions based on the measured indications of position, to compare the indications of displacement for each of the gasket surface portions with at least one threshold value (Ty), and to generate a warning message for an operator if at least one of the indications of displacement transgresses the at least one threshold value.
Owner:FNV IP BV

Performance test bench and test method for bipolar high-speed rotating sealing element

The invention relates to a test bed and a test method for testing the performance of a bipolar high-speed rotating sealing element, and belongs to the technical field of aero-engine sealing. The device comprises a high-pressure bearing cavity, a sealing element testing device, a coupler, a motor, a motor base and a base. The bottom of the motor base is installed on the base, the motor is fixedly installed on the motor base, one end of the coupler is connected to an output shaft of the motor, the high-pressure bearing cavity is installed in the middle of the base, the sealing piece testing device is installed on the base and located on the side of the high-pressure bearing cavity, and the other end of the coupler is connected to one end of the sealing piece testing device. According to the invention, the sealing performance of six sealing elements in three groups can be tested at the same time, and the performance of the sealing elements with three different sizes and types can be tested and compared; the test bench is convenient to measure and maintain due to the modular design; the two-stage symmetrical structure can improve the test efficiency, reduce the test cost, and provide a good experimental basis for the sealing design and optimization of the high-speed rotating sealing element.
Owner:KUNMING UNIV OF SCI & TECH

Glyd ring friction force measuring equipment

The utility model relates to the technical field of Glyd rings, and discloses Glyd ring friction force measuring equipment which comprises a force measuring machine, a manual control rocking handle is installed on the front side of the force measuring machine close to the bottom, a loading disc is fixedly installed on the front side of the force measuring machine close to the bottom, and a fixing mechanism is arranged in an inner cavity of the loading disc. A valve sleeve is arranged at the top of the loading disc, an inner cavity of the valve sleeve is in sliding connection with a valve element, a Glyd ring is arranged at the position, close to the top, of the inner cavity of the valve sleeve, and the driving bevel gear can rotate under driving of the manual control rocking handle and transmission of the transmission rod. Under the connection of a driven bevel gear, a worm, a worm gear, a second threaded rod, a threaded sleeve and a special-shaped rod, a pressure plate can move downwards, the Glyd ring is rapidly detected, the detection efficiency is improved, two fixing rings are arranged to fix a valve sleeve, the situation that the valve sleeve inclines in the detection process and influences the Glyd ring friction force detection value can be avoided, and the detection accuracy is improved. And the measurement accuracy of the Glyd ring friction force value is improved.
Owner:GUANGZHOU HUITONG PRECISION HYDRAULIC CO LTD

Deterioration determination device, deterioration determination system and deterioration determination method

To provide a deterioration determination device, a deterioration determination system and a deterioration determination method capable of accurately determining whether or not a seal device of a rotary machine has deteriorated.SOLUTION: A deterioration determination device determines whether or not a seal device of a rotary machine has deteriorated. The rotary machine includes: a rotor; a bearing that rotatably supports the rotor; a bearing housing that surrounds the bearing; a seal air supply pipe that defines a seal air supply passage for causing seal air to be supplied to the bearing housing to flow; and a casing that surrounds the bearing housing. The casing separates the bearing housing from an external space filled with high-temperature high-pressure gas having a higher temperature and higher pressure than those of the seal air, and includes an inner peripheral surface on which the seal device is disposed in a space between an outer peripheral surface of the rotor and itself. The deterioration determination device is configured to determine that the seal device has deteriorated when first pressure corresponding to pressure in a first space formed between the casing and the bearing housing is larger than second pressure corresponding to pressure in a second space formed on the inner side of the bearing housing.SELECTED DRAWING: Figure 3
Owner:MITSUBISHI HEAVY IND LTD

Reliability test device for sealing ring

The embodiment of the invention discloses a reliability test device for a sealing ring. A plurality of first mounting grooves and second mounting grooves are formed in the first end face of a shell in the device at intervals; the reliability verification of the radial sealing structure is carried out through the sealing rings of various specifications which are radially mounted on the product A and the product B; a plurality of third mounting grooves are formed in the second end face at intervals, each product C is mounted in the corresponding third mounting groove through a pressing sleeve, and reliability verification of the end face sealing structure is carried out through a sealing ring arranged on the contact face of the pressing sleeve and the shell and a sealing ring arranged on the contact face of the pressing sleeve and the product C; a thread chamfer joint groove is formed in the third end face and is used for sealing the pipe joint through a thread chamfer to be mounted in the thread chamfer mounting groove; the second end face is further provided with a plurality of thread chamfer mounting grooves used for a pipeline plugging product D, and the thread chamfer mounting grooves are used for carrying out reliability verification on the thread chamfer sealing structure.
Owner:XIAN AERO ENGINE CONTROLS

A method of measuring a sealed compression amount, a storage medium, and an apparatus

A sealed compression measurement method, a storage medium and an equipment relate to the technical field of automation detection, and solve the problems of low efficiency and poor measurement accuracy of the existing manual measurement method. The method comprises the following steps: S1, fitting models of a measured sealing element and a measurement reference element in a free state according to actual assembly positions of the measured sealing element and the measurement reference element, and cutting two-dimensional sections of the measured sealing element and the measurement reference element; S2, marking the measured sealing element and the measurement reference element; S3, capturing an intersection of the measured sealing element and the measurement reference element; S4, establishing a measurement reference surface of the measurement reference element; S5, capturing a farthest point i of the measured sealing element on a side compressed to the reference surface; and S6, measuring a minimum distance of the point i to the measurement reference surface, that is, a compression amount.
Owner:CHINA FAW CO LTD

Method for monitoring a mechanical seal within a rotating machine

The invention relates to a method for monitoring a mechanical seal within a rotating machine, in particular a pump, with at least one temperature sensor arranged within the machine for detecting the ambient temperature and / or at least one component of the mechanical seal, wherein the rotational speed of the rotating machine is estimated by means of the at least one temperature measurement value and at least one further operating parameter of the mechanical seal.
Owner:KSB SE & CO KGAA