50 results about "Rotation test" patented technology

The utility model discloses a bearing rotation testing device which comprises a base, a motor, a first supporting column, a second supporting column and a supporting block are installed on the base, the first supporting column, the second supporting column and the supporting block are arranged in a triangular mode, an inner ring of a bearing is fixed, and the positions of the first supporting column and the second supporting column can be adjusted. A belt pulley is installed on an output shaft of the motor and drives a bearing outer ring to rotate through a belt so as to carry out a rotation test. According to the bearing rotation testing device provided by the utility model, the inner ring of the bearing is fixed through the first supporting column, the second supporting column and the supporting block, and the belt drives the outer ring of the bearing to rotate, so that the rotation test of the bearing is realized. And by adjusting the positions of the first supporting column and the second supporting column, the requirements of rotation testing of bearings with different diameters are met, and the application range of the device is widened.

The invention discloses a batch test compensation system for G sensitivity of a quartz crystal oscillator, and belongs to the technical field of electronics. Comprising a three-axis orthogonal rotation test frame and an upper computer. The triaxial orthogonal rotation testing frame is provided with a testing plate serving as a crystal oscillator carrier, and the testing plate realizes the functions of orientation, pitching and polarization rotation through the triaxial orthogonal rotation testing frame; the rotation rate and the current real-time rotation angle of the three-axis orthogonal rotation test frame can be output; the upper computer performs algorithm fitting calculation on the acquired data, calculates a linear relation between crystal oscillator frequency change and acceleration change, and obtains a compensation function based on three axial acceleration values # imgabs0 #; and the upper computer acquires data and writes an obtained compensation function into a register in the crystal oscillator. The frequency offset of the crystal oscillator is corrected through the digital compensation technology, the test compensation process is simple and convenient, and batch production can be achieved.

The invention discloses a self-aligning roller bearing rotation flexibility test data and assembly parameter correlation analysis method and a self-aligning roller bearing rotation flexibility test data and assembly parameter correlation analysis system. According to the method, bearing assembly parameters and multi-dimensional time sequence data of a rotation test are acquired through a system, and a quantitative correlation model between the bearing assembly parameters and the multi-dimensional time sequence data is constructed by using a machine learning algorithm. On the basis of the model, reverse analysis can be carried out on abnormal test data, and an assembly deviation source which causes poor flexibility is accurately positioned; target parameters can be input in the process design stage, and the expected performance of the bearing can be predicted in the forward direction. The corresponding system integrates a data acquisition module, a model analysis module, an application output module and a process feedback control module, and is integrated with a production line control system. According to the method, traditional qualitative judgment depending on experience is converted into quantitative analysis driven by data and models, intelligent closed loop from quality detection and root diagnosis to process optimization is achieved, and the consistency of bearing assembly quality and the intelligent level of process control are remarkably improved.

The present invention belongs to the technical field of rotary joints, and discloses a rotary joint life test bench for fluid transportation, including a base, a base is fixedly installed at a position near the middle of the top of the base, a frame is fixedly installed on the left side of the top of the base, a longitudinal guide rail is fixedly installed on the right side of the top of the base, a guide block is movably connected to the inner part of the longitudinal guide rail, the guide block is displaced up and down relative to the longitudinal guide rail, and a water delivery component is fixedly sleeved in the middle of the base. The present invention directly drives the rotary joint to complete the rotation test by utilizing the rotation process of the power component, and converts the rotation action into up and down linear motion through the cooperation of the power component and the transmission component, so that each rotation can complete an upward movement process, and the number of rotations can be quickly obtained by counting each upward movement process. The whole process can be completed automatically, and the number of rotations can be calculated in real time until leakage occurs, which significantly improves the detection efficiency.

The invention discloses a fault detection method, device and equipment, a medium and a product. The method comprises the following steps: acquiring an acceleration signal of a rotating tool; determining a target image according to the acceleration signal; and inputting the target image into a fault detection model to obtain a fault detection result of the bearing in the rotating tool. Through the technical scheme of the invention, real-time detection can be carried out on the bearing fault of the near-drilling emission rotation test tool through the acceleration signal, so that timely shutdown can be carried out without human guarding when the bearing has a fault, the problem that manual inspection is needed when an existing near-drilling emission module carries out rotation test is solved, and the detection efficiency is improved. Meanwhile, the problems of man-made misjudgment, detection hysteresis and the like existing in existing fault detection are solved, the bearing fault of the near-drilling rotation test tool is effectively monitored, meanwhile, the rotation test of the near-drilling emission module can be conducted for 24 hours, the monitoring robustness is improved, and finally the intelligent level and reliability of the near-drilling emission rotation test are improved.

The invention aims to provide an over-rotation test piece, an over-rotation test piece mounting tool and an over-rotation test piece mounting method. The over-rotation test piece comprises a turbine disc unit, a plurality of blade units and a baffle ring. The turbine disc unit comprises a plurality of mortises formed along the disc circumference, the blade units comprise tenons and balancing weights, the tenons and the tenons of real blades are of the same structure, and the weight and the mass center position of the balancing weights are consistent with the blade bodies of the real blades. The tenons of the multiple blade units are installed on the periphery of the turbine disc unit through the mortises in the circumferential direction, and the baffle rings are arranged at one ends of the mortises to limit the tenons to be disengaged from the mortises in the first direction. Through the over-rotation test piece, the test cost of an over-rotation test can be reduced.

The utility model relates to a passive multi-rotation constant torque loading test device, which comprises a bottom plate and a turntable arranged on the bottom plate through a support bracket, the turntable is connected with the support bracket through a bearing, the turntable is positioned on one side of the support bracket, the other side of the turntable is also provided with a mounting bracket, a traction rope is wound on the outer edge of the turntable, and the traction rope is connected with the support bracket through a bearing. Through the action of the device, the tested driving mechanism can be subjected to resistance stroke long and rotation angle large; a simple and feasible test scheme is provided for the multi-rotation test of the current structure, and the whole device is low in manufacturing cost and can be used for a plurality of rotation structures by designing a plurality of mounting holes; the moment is calculated according to the product of the force and the force arm, the test moment gradient can be changed by changing the weights of different mass blocks, and different moment gradient tests can be easily achieved.

The embodiment of the invention discloses a rotation test method, system and device of a mobile robot and a server, and relates to the technical field of mobile robots. According to the specific implementation scheme, a task execution instruction is sent to the mobile robot, the task execution instruction is used for instructing the mobile robot to execute a test task, and the test task comprises rotation at a test position point according to a preset direction; obtaining rotation data collected by the distance measuring module when the mobile robot rotates at the test position point according to the preset direction; and obtaining a rotation performance index of the mobile robot based on the rotation data. In the scheme, by setting the test position point and the corresponding distance measurement baffle plate, the rotation performance of the mobile robot can be evaluated by using the rotation data acquired by the distance measurement module in the process that the mobile robot rotates at the test position point according to the preset direction, so that the accuracy of the rotation test of the mobile robot is improved.

The present invention belongs to the field of gas turbines, and aims to provide a gas turbine disk overspeed pre-rotation test method for both structural integrity assessment and service life extension. The method comprises the following steps: sequentially performing rotor assembly and dynamic balancing, rotor installation, an ambient-temperature trial run, temperature field calibration, a cold-state pre-rotation test and a hot-state pre-rotation test; and then performing test result validity analysis, and if criteria are met, stopping the process, and if the criteria are not met, repeating the process until the criteria are met, during which dynamic balancing criterion determination, installation criterion determination, vibration amplitude criterion determination, temperature field criterion determination, etc. are required to be performed respectively. The present invention can effectively extend the service life of disks, can reduce the production cost of the disks, and can also complete the structural integrity assessment of the disks.

The application discloses a distortion simulator outlet rotation test system, which comprises a rotating section assembly and a driving system, wherein the rotating section assembly comprises a harrow seat mounting cylinder and a bearing, and the bearing is fixed on the harrow seat mounting cylinder through a bearing mounting frame; the driving system comprises a linear module, a driving plate, a pull rod and a motor, one end of the driving plate is connected with the pull rod through a first pin shaft, the other end of the driving plate is connected with a slider of the linear module through a bolt, one end of the pull rod away from the driving plate is connected with a connecting piece fixedly arranged on the harrow seat mounting cylinder through a second pin shaft, and the motor drives the linear module to convert the linear motion of the slider into the circumferential motion of the harrow seat mounting cylinder, so that the rotation measurement is realized. The distortion simulator outlet rotation test system can convert the linear motion of the slider of the linear module into the circumferential motion of the harrow seat mounting cylinder to realize the rotation measurement, and can accurately measure the outlet flow field of the pressure distortion simulator.

The application aims to provide a normal-temperature overspeed pre-rotation test method for improving the service life of a gas turbine disc, belonging to the field of gas turbines, and comprising the following steps: sequentially performing rotor assembly and dynamic balancing, rotor installation, normal-temperature trial rotation, and normal-temperature pre-rotation test, finally performing test result effectiveness analysis, stopping if the test meets the test qualification standard requirement, and repeating the above steps and selecting a test rotation speed again for normal-temperature pre-rotation test if the test does not meet the test qualification standard requirement, during which dynamic balancing standard judgment, installation standard judgment, and vibration amplitude standard judgment are performed respectively. The application can effectively improve the service life of the disc and reduce the production cost of the disc.

The invention relates to the field of bearing ball testing, and discloses a testing device for performing a high-speed rotation test on a ball in a bearing, the testing device comprises a support frame, the top of the support frame is rotatably connected with a transmission shaft, the outer wall of the transmission shaft is fixedly connected with a coupling, and the outer wall of the coupling penetrates through and is rotatably connected with the inner wall of the top of the support frame. The outer wall of the coupler is fixedly connected with a loading wheel, a temperature measuring sensor is detachably installed at the top of the supporting frame through a bolt, a speed measuring sensor is detachably installed at the top of the supporting frame through a bolt, and three sets of transmission shafts are arranged and comprise the transmission shaft A, the transmission shaft B and the transmission shaft C. According to the invention, the motor drives the three groups of loading wheels to rotate, a relatively complete high-rotating-speed light-load device in an actual working condition environment is provided for a bearing type testing machine, and the rotating speed loading of the loading shaft is used for the first time to be closer to the running state of a bearing ball in the actual working condition.

The purpose of this invention is to provide a high-speed pre-rotation test method for gas turbine disks that simultaneously assesses structural integrity and improves service life. Belonging to the field of gas turbines, the method includes the following steps: sequentially performing rotor assembly and dynamic balancing, rotor installation, room temperature trial run, temperature field calibration, cold pre-rotation test, and hot pre-rotation test. Then, the validity of the experimental results is analyzed; if the standards are met, the test is stopped; if not, it is repeated until the standards are met. During this process, dynamic balancing standard judgment, installation standard judgment, vibration amplitude standard judgment, and temperature field standard judgment are performed respectively. This invention can effectively improve the service life of the disk, reduce the production cost of the disk, and simultaneously assess the structural integrity of the disk.

The invention aims to provide a thermal-state overspeed pre-rotation test method for prolonging the service life of a gas turbine wheel disc, which belongs to the field of gas turbines, and comprises the following steps: sequentially carrying out rotor assembly and dynamic balance, rotor installation, normal-temperature test rotation, temperature field calibration and thermal-state pre-rotation test, and finally carrying out test result validity analysis. And if the size requirement is met, stopping, if the size requirement is not met, repeating the steps, reselecting the test rotating speed, and respectively performing dynamic balance standard judgment, installation standard judgment, vibration amplitude standard judgment and temperature field standard judgment during the period. The service life of the wheel disc can be effectively prolonged, and the production cost of the wheel disc is reduced.

The invention discloses a high-speed rotation test device and method for a long-life bearing based on a particle swarm algorithm, and relates to the technical field of bearing rotation tests. The invention discloses a high-speed rotation test device and method for a long-life bearing based on a particle swarm algorithm. Comprising a testboard, a bearing body installed on the testboard, an electromagnetic loading block abutting against the bearing body, a fixed frame fixed to the top of the testboard, a guide column and a main electromagnet which are fixed to the testboard through the fixed frame, and a driving motor fixed to the top of the testboard. A water return assembly used for assisting cooling water circulation and a reset assembly used for assisting the water return assembly to operate are arranged in the test board, the water return assembly comprises a cooling water tank which is fixed to the test board and used for containing cooling water, and the cooling water in the cooling water tank and the cooling water in a heat dissipation water tank is controlled in a self-adaptive mode. An experimenter does not need to add cooling water into the cooling water tank, operation steps are simplified, and fault points are easy to troubleshoot when faults occur.

The invention provides an over-rotation tool for a turbine high-temperature over-rotation test. The over-rotation tool comprises a mandrel, a turbine, a small-end end cover, a large-end end cover, a pre-tightening assembly and a locking piece. The mandrel is connected with the over-rotating machine and the turbine and transmits torque; the turbine sleeves the second section of the mandrel, and the performance is tested; the small end cover and the large end cover are positioned, transmit torque and guarantee concentricity; the pre-tightening assembly compensates axial thermal deformation through an elastic piece, and the turbine is locked. And the pre-tightening assembly is fixed by the locking piece. Structurally, the turbine is in clearance fit with the mandrel, the key groove is matched with the key block, the elastic pieces are connected in series, and the end cover, the elastic pieces and the mandrel are made of the same material. According to the tool, the problems of an existing tool under the high-temperature and high-speed working condition are solved, the connection effect of a turbine under the high-temperature and over-rotation condition is improved, the stability and reliability of the tool are guaranteed, the torque transmission efficiency and the connection reliability are improved, stress concentration is reduced, and the universality and flexibility of the tool are improved.

The application aims to provide a cold state overspeed pre-rotation test method for gas turbine wheel disc structure integrity examination, belonging to the field of gas turbine, comprising the following steps: sequentially performing rotor assembly and dynamic balance, rotor installation, normal temperature test rotation, temperature field calibration, cold state pre-rotation test, finally performing test result effectiveness analysis to determine whether the wheel disc meets the structure integrity, during which dynamic balance standard judgment, installation standard judgment, vibration amplitude standard judgment and temperature field standard judgment are performed respectively. The application can detect internal defects without damaging the wheel disc, effectively improving the reliability of the wheel disc.

The utility model belongs to the technical field of automobile part experimental equipment, particularly relates to a simulation rotation device for a rim cover, and solves the problems that in the prior art, simulation detection cannot be carried out on rim covers of different sizes and models, and practicability and flexibility are low. A simulation motor is fixedly connected to the inner wall of the fixed seat, a detection mechanism for simulation detection is arranged outside the fixed seat, the detection mechanism comprises a fixed ring, and a driven gear ring is rotatably connected to the inner wall of the fixed ring; through the arrangement of the fixed ring, the driven gear ring, the first gear, the driven gear racks, the ruler plate, a clamping plate, a limiting telescopic rod, a reset spring, a fixed rod, a driving motor, a second gear and the like, each driven gear rack is driven to move in the middle through the rotation of the driven gear ring; therefore, fixed rotation testing can be carried out on rims of different sizes and models, and the flexibility of rim cover simulation is greatly improved.

The invention aims to provide a normal-temperature overspeed pre-rotation test method for prolonging the service life of a gas turbine wheel disc, which belongs to the field of gas turbines, and comprises the following steps: sequentially carrying out rotor assembly and dynamic balance, rotor installation, normal-temperature test rotation and normal-temperature pre-rotation test, and finally carrying out test result validity analysis. And if the test qualification standard requirement is met, stopping, if the test qualification standard requirement is not met, repeating the steps, re-selecting the test rotating speed to carry out the normal-temperature pre-rotation test, and respectively carrying out dynamic balance standard judgment, installation standard judgment and vibration amplitude standard judgment during the period. The service life of the wheel disc can be effectively prolonged, and the production cost of the wheel disc is reduced.

The present application relates to a kind of pedicle screw cap and fixed ring anti-rotation test device, including torsion testing machine (1), the torsion testing machine (1) is equipped with rotating three-jaw chuck (2) and fixed three-jaw chuck (3), still including profile bar (4) and fixing mechanism (5), one end of the profile bar (4) is clamped on the rotating three-jaw chuck (2), the other end is closely matched with the fixed ring (10) of the pedicle screw to be measured, the fixing mechanism (5) is clamped on the fixed three-jaw chuck (3), the cap (9) of the pedicle screw to be measured is fixed in the fixing mechanism (5) and the cap (9) is matched with the fixed ring (10), the fixed three-jaw chuck (3) is equipped with torque measuring sensor (6) and the rotating three-jaw chuck (2) is equipped with angular displacement sensor (7). It can realize the anti-rotation mechanics measurement of pedicle screw cap and fixed ring.

The present invention discloses a method for obtaining a counterweight for a rotation test in a land-based test of a large sail, and belongs to the field of marine engineering technology. The present invention first determines the composition of the system in the rotation test, and then, in order to verify the rotation system capability of the sail, the maximum torsional load of the sail in actual ship operation is simulated on land, while considering the loading condition of the tooling, to form a counterweight calculation method for the rotation test, thereby ensuring the smooth implementation of the rotation test. The present invention completes the simulated load of the rotation test in the form of a force couple, and completes the functional test requirements; the present invention designs a counterweight tooling through a combination of a fixed pulley and a movable pulley, which can reduce the size of the counterweight and facilitate the test; the present invention takes into account the mechanical properties of the test tooling itself, and can quickly complete the counterweight acquisition of the rotation test.

The utility model relates to the technical field of protective devices, and discloses a protective device for a rotation test of a threaded fastener, which comprises a supporting leg, a base is fixedly arranged at the top of the supporting leg, a control display panel is fixedly arranged on the front surface of the base, a supporting column is fixedly arranged at the top of the base, and the control display panel is fixedly arranged on the front surface of the supporting column. A top plate is fixedly mounted at the top of the supporting column, and a driving position is arranged at the top of the top plate; the protective dismounting assembly is arranged above the base, an arc-shaped protective plate I and an arc-shaped protective plate II are connected together in a clamped mode by arranging the arc-shaped protective plate I and taking up a handle, furthermore, a pressing column is pressed to enable a circular column to move forwards, drive a stop block to move downwards, retract into a containing groove and penetrate through a mounting hole, the pressing column is pressed again, the stop block is opened, and the arc-shaped protective plate I and the arc-shaped protective plate II are connected in a clamped mode. And the limiting fastening ring is screwed, the first arc-shaped protection plate and the second arc-shaped protection plate are reinforced, the first arc-shaped protection plate and the second arc-shaped protection plate are prevented from being separated when the workpiece rotates in an accelerated mode, and the effects of convenient use and reinforced protection are achieved.

The invention relates to a rotor over-rotation test device for an engine. The rotor over-rotation test device comprises a bottom plate; the supporting assemblies are arranged at the top of the bottom plate at intervals, and each supporting assembly comprises a bearing frame and a mounting shaft rotationally mounted on the inner side of the bearing frame; the driving assembly is used for driving the mounting shaft to rotate forwards or backwards; the axial loading assembly is movably arranged on one side of the rotor and is used for applying axial force to the rotor; and the radial loading assembly is arranged at the top of the bottom plate and is used for applying radial force to the rotor. According to the rotor over-rotation test device for the engine, when the rotor is subjected to an over-rotation test, the driving assemblies on the two sides drive the rotor to rotate in the forward direction or in the reverse direction, during the period, axial loads are applied to the rotor through the axial loading assembly, and radial loads are applied to the rotor through the radial loading assembly; therefore, the complex stress environment of the rotor under the real working condition is simulated, and the reliability and stability of the test result are met.

The invention aims to provide a cold-state overspeed pre-rotation test method for checking the structural integrity of a wheel disc of a gas turbine, which belongs to the field of gas turbines and comprises the following steps of: sequentially carrying out rotor assembly and dynamic balance, rotor installation, normal-temperature test rotation, temperature field calibration and cold-state pre-rotation test, and finally carrying out test result validity analysis. Whether the wheel disc meets the structural integrity or not is determined, and during the period, dynamic balance standard judgment, installation standard judgment, vibration amplitude standard judgment and temperature field standard judgment are conducted respectively. The internal defects can be detected under the condition that the wheel disc is not damaged, and the reliability of the wheel disc is effectively improved.

The purpose of this invention is to provide a hot-state overspeed pre-rotation test method for improving the service life of gas turbine disks. Belonging to the field of gas turbines, the method includes the following steps: sequentially performing rotor assembly and dynamic balancing, rotor installation, room temperature trial rotation, temperature field calibration, and hot-state pre-rotation test. Finally, the validity of the test results is analyzed. If the dimensional requirements are met, the test is stopped; otherwise, the above steps are repeated, and a new test speed is selected. During this process, dynamic balancing standards, installation standards, vibration amplitude standards, and temperature field standards are judged respectively. This invention can effectively improve the service life of the disk and reduce its production cost.

The invention discloses a test method suitable for a novel pile foundation stand column type output single point land rotation test, and relates to the technical field of ocean engineering, the method is based on a balancing weight and a forklift, and external driving force is provided for the novel pile foundation stand column type output single point; according to the method, a chain block or a hanging belt and a tension meter are used as flexible connection to connect external driving force with the novel pile foundation stand column type output single point, and then land rotation of the novel single point device is achieved; in the rotation test process, the method can help technicians to successfully collect the values of the starting torque and the running torque most concerned by the novel single-point device in each test stage; by means of the method, the novel pile foundation stand column type output single point can smoothly complete rotation tests under three working conditions on the land, the test period is greatly shortened while the project quality is guaranteed, and the method has the advantages of being low in test cost, short in test period, high in safety, small in affected factor, high in applicability and the like.

The aero-engine auxiliary measuring device is suitable for detecting whether the flatness of an aviation product is qualified or not in a rotation test, and comprises an elastic chuck of a hollow structure, a pull rod, a cross beam, a guide shaft and a tensioning mechanism of a conical structure, and the inner ring surface of one end of the elastic chuck is of a horn structure with a preset length; the cross section size of the guide shaft is larger than that of the pull rod, a rectangular hole is formed in the outer ring face of the guide shaft in the axial direction, a fixing rod is arranged on the pull rod in the radial direction, one end of a cross beam is installed at the position, close to the rectangular hole, of the guide shaft, and a detection assembly is installed at the other end of the cross beam. The detection assembly is used for detecting whether the flatness of the side face of the rotating part is qualified or not when the rotating part of the aviation product rotates relative to the inner ring face of the product, and the detection efficiency can be improved.

To realize a rotation testing device that can more reliably suppress the transmission of electromagnetic waves in an axial direction between a dynamometer side rotary shaft and a test-piece side rotary shaft.SOLUTION: A rotation testing device 1 has a dynamometer 10, a dynamometer side rotary shaft D, a dynamometer side connection part 41, a test-piece side rotary shaft T, a test-piece side connection part 49, and an insulation member 50 that electrically insulates the dynamometer side connection part 41 and the test-piece side connection part 49. The rotation testing device further has: wall parts 79 and 179 that are positioned radially outward from a dynamometer side connection part 20 or a test-piece side connection part 30 between the dynamometer 10 and a test-piece 99 and have electrical conductivity; and conductive parts 75 and 175 that are positioned between the wall parts 79 and 179 and the dynamometer side connection part 41 or the test-piece side connection part 49 and electrically connect the wall parts 79 and 179 and the dynamometer side connection part 41 or the test-piece side connection part 49.SELECTED DRAWING: Figure 1

A rotational test apparatus includes a support assembly, a plurality of bolts, an obstacle, and a drum. The drum is rotatably supported by the support assembly and includes a first end wall, a second end wall, and a side wall which cooperate to define an interior compartment. The first end wall defines a passageway which extends into the interior compartment and is sized to facilitate selective insertion and removal of packages therethrough. The side wall defines a plurality of threaded apertures including a first plurality which is occupied by said bolts and a second plurality which is unoccupied. The second plurality exceeds the first plurality by at least a ratio of 10 to 1. The obstacle is secured to the side wall within the interior compartment by at least some of said bolts threaded into respective ones of the first plurality of the threaded apertures. Methods are also provided.