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729 results about "Sensor holder" patented technology

Pipeline robot for internal diameter measurement

InactiveCN103398665ASuitable for measurement requirementsHigh measurement accuracyUsing optical meansPigs/molesTransmission beltBall screw
The invention relates to a pipeline robot for internal diameter measurement. The pipeline robot for the internal diameter measurement comprises a supporting mechanism, a main driving mechanism and a laser measurement mechanism, wherein the supporting mechanism mainly consists of a nut for a ball screw, a step motor I, wheels, a connection rod, a push rod and the like; the main driving mechanism mainly consists of a worm gear, a worm rod, a belt wheel, a transmission belt and the like; and the linear movement of the pipeline robot can be realized through the driving of a step motor II. The laser measurement mechanism is mainly composed of a sensing measuring head, a sensor bracket and a step motor III. The pipeline robot provided by the invention can be used for measuring an internal diameter of a long pipeline, and can particularly meet the measurement requirement of thin and long pipes with the larger range of the internal diameter. The pipeline robot provided by the invention not only can be used for carrying out non-contact measurement on the internal diameters of the pipelines with different sizes but also can realize various measurements by means of replacing a measurement head of a sensor, such as flaw detection and the like. The pipeline robot has the advantages of high measurement precision and convenience in use.

Moon-exploration mechanical arm modularization joint based on absolute position measurement

The invention discloses a moon-exploration mechanical arm modularization joint based on absolute position measurement, relating to a moon-exploration mechanical arm modularization joint. The invention aims to solve the problems that a potentiometer is used as an absolute position sensor of the current mechanical arm modularization joint, thus global feedback of the joint position information can not be directly provided, signal fusion needs to be carried out, and the fusion algorithm is relatively troublesome. A DC brushless motor is installed in a casing, the small diameter end of a rotator magnet yoke of the DC brushless motor is connected with one end of an input interface; a harmonic reducer is fixedly connected with an internal seat of an angular contact bearing; an outer seat of the bearing, a flexible gear and an output ring flange are fixedly connected; an input shaft is fixedly installed in the outer seat of the bearing; the input shaft is fixedly installed in a supporting seat; the input shaft is fixedly installed in the input interface; a gland is fixedly connected with the supporting seat; a Hall sensor bracket is fixed on a second radial bearing supporting seat; and a back-to back twin angular contact bearing is installed between the inner seat of the angular contact bearing and the outer seat of the angular contact bearing. The invention is used for exploring ore and space environment on the surface of moon.

Micro-milling vibration precision measurement system taking laser micro-displacement sensor as measuring element

InactiveCN103624633ASolving the Challenges of Relative Vibration MeasurementsHigh measurement accuracyMeasurement/indication equipmentsVibration measurementData acquisition
The invention belongs to the field of machine tool vibration online measurement, and relates to a precision measurement system for measuring the relative vibration condition between a cutter and a workpiece in the micro-milling process. The measurement system comprises a laser micro-displacement sensor, a sensor bracket, a laser displacement controller, a data acquisition card and a computer provided with a PXI multifunctional controller, wherein the sensor bracket is arranged on a working platform of a micro-milling machine; the laser micro-displacement sensor is arranged the multi-degree of freedom adjustment laser displacement sensor bracket; the position of the laser micro-displacement sensor on the multi-degree of freedom adjustment laser displacement sensor bracket can be adjusted, so that the vibration condition along any of X direction, Y direction and Z direction can be measured. The laser micro-displacement sensor is connected with the laser displacement controller; the laser displacement controller is connected with the data acquisition card; the data acquisition card is arranged in the computer. The measurement system solves the technical problem of the measurement on the relative vibration between the cutter and the workpiece in the micro-milling process, and is high in measurement accuracy, high in equipment portability, wide in measurement range and simple to operate.

Wheel bearing apparatus incorporated with a wheel speed detecting apparatus

A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member (4) with an integrally formed body mounting flange (4b) and double row outer raceway surfaces (4a) formed on the inner circumferential surface of the outer member (4). An inner member (3) includes a wheel hub (1) with an integrally formed wheel mounting flange (7) at one end. A cylindrical portion (1b) axially extends from the wheel mounting flange (7). An inner ring (6) is fitted on the cylindrical portion (1b) of the wheel hub (1). Double row inner raceway surfaces (1a, 6a) are formed on the outer circumferential surfaces of the wheel hub (1) and inner ring (6), respectively opposite to the double row outer raceway surfaces (4a). Double row rolling elements (5) are rotatably arranged between the outer and inner raceway surfaces (4a; 1a, 6a). An encoder (19) is mounted on the outer circumferential surface of the inner ring (6). An annular sensor holder (15) is arranged on the end of the outer member (4) opposite to the encoder (19). A wheel speed detecting sensor (20) is integrally molded with the sensor holder (15) and arranged opposite to the encoder (19), via a predetermined radial gap. The encoder (19) has an annular ring configuration and its characteristics alternately and equidistantly vary along its circumferential direction. A seal is arranged at the inboard side of the encoder (19). The seal includes first and second annular sealing plates (21, 22) mounted on the sensor holder (15) and the inner ring (6), respectively, and opposite toward each other. The encoder (19) is mounted on the second sealing plate (22).

Novel stacker crane

A novel stacker crane comprises a lifting traction device, a horizontal traction device and a clamping paw mechanism, wherein the lifting traction device drags a lifting frame to move vertically; the horizontal traction device is arranged on the lifting frame and horizontally moves along the lifting frame; the clamping paw mechanism is connected to a rotating device of the horizontal traction device; the lifting traction device comprises a speed reducing motor, a rack, a driving chain wheel shaft, a worm gear and worm speed-reducing device, a speed-reducing motor output connecting shaft, a motor output connecting shaft coupler, a lifting driving chain wheel, the lifting frame and a tensioning chain wheel; the horizontal traction device comprises a movable frame, a swinging oil cylinder, a horizontal traction speed-reducing motor, an output shaft, the rotating device and a sensor support; the clamping paw mechanism comprises a first clamping paw guiding rack, a second clamping paw guiding rack, a first pair of clamping mechanism paws, a second pair of clamping mechanism paws, a first driving hydraulic cylinder and a second driving hydraulic cylinder; and a guiding shaft is fixed by the first clamping paw guiding rack and the second clamping paw guiding rack. The novel stacker crane has the advantages that stable and synchronous clamping is realized, damage is avoided, the labor intensity is reduced, the manufacturing cost is low, and the production efficiency is improved.

Monitoring and measuring method using displacement sensor to measure tunnel deformation

ActiveCN102914282ASimple measuring deviceQuick testMeasurement devicesMeasurement pointSensor holder
The invention provides a monitoring and measuring method using a displacement sensor to measure tunnel deformation. The monitoring and measuring method comprises the steps of setting a measurement point on a section of an arc tunnel, and connecting a line; arranging a connection rod at an arc measurement point; fixing a displacement transfer rod on the connection rod and fixing a first base on the connection rod; arranging a horizontal measuring rod at the position of the measuring point, and arranging a second base on the horizontal measuring rod; respectively setting the crosspoints of the displacement transfer rod and a horizontal measuring line as a first measurement point and a second measurement point; fixing a displacement sensor bracket on the first base or the second base, and arranging a horizontal direction displacement sensor and a vertical direction displacement sensor on the displacement sensor bracket; measuring horizontal clearance variation and vertical clearance variation, judging the deformation situation of the tunnel accordingly, calculating the horizontal clearance variation between a left measurement point and a right measurement point, and calculating a mean value of the vertical clearance variation between the arc measurement point and the horizontal measurement line. The monitoring and measuring method provided by the invention has the advantages of rapidness in test, high testing precision, less interference on construction and low cost, can be used for monitoring in real time, and can be used for determining whether the tunnel is biased or not according to the testing result of the clearance variation of the channel.

Experimental apparatus for testing sliding friction property of friction materials

The invention relates to an experimental apparatus for testing sliding friction property of friction materials. The invention solves the problem that special experimental apparatuses for testing sliding friction property of friction materials at low temperature under vacuum do not exist. A loading supporting plate is fixedly mounted on the upper part of a loading bracket. One end of a lever is fixed on the upper part of the loading supporting plate, and the other end of the lever is connected with the upper end of a connecting rod. The lower end of the connecting rod is equipped with a scale pan, a loading pressure lever is fixedly mounted on the lever, a pressure lever base is fixed on the lower part of the loading supporting plate, and a guide sleeve on the pressure lever base is equipped with a loading shaft, a bush is fixedly connected with one end of a sensor pressure lever by a bush base, the other end of the sensor pressure lever is in contact with the upper end face of a pressure sensor, and the lower end face of the pressure sensor is fixedly mounted on the upper end face of the base through a sensor bracket. The invention can simulate the friction manners of friction pairs in aviation and astronavigation under normal pressure vacuum, low pressure vacuum and high pressure vacuum, and can measure the frictional coefficients of any two friction materials.
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