1554results about "Mechanical clearance measurements" patented technology

The invention provides a method and a system for detecting a distance from a welding spot center to an R angle. The method comprises the following steps: detecting a part having an interference relationship with a to-be-detected welding spot file; making a vertical line of a connecting part by taking the welding spot as a reference and a midpoint; making a cylinder to divide the outer surface of the connecting part; the dividing face is disassembled; processing each disassembled curved surface to obtain a curved surface boundary intersection line of each curved surface intersected with the cylinder; taking the welding spot as a reference, and respectively making a vertical plane from the welding spot to a curved surface boundary intersection line of each curved surface; taking a midpoint and two end points of a'curved surface-vertical surface 'intersecting line, and drawing a circle by three points; if the radius of the circle is larger than a configuration threshold value, the curved surface is a welding surface, and distance detection is qualified; if not, determining that the curved surface is a chamfered surface, and determining that the distance detection is unqualified. According to the invention, the detection logic is simplified, the distance detection from the welding spot to the R angle and the flanging is automatically realized, the detection is faster and more accurate, the risk is reduced, and the efficiency is improved.

The present disclosure relates to a device for detecting and identifying play and checking the attachment of wheel, steering-assembly and suspension parts of vehicles. The device includes a linearly displaceable carriage and a supporting plate which is configured to support a wheel of a vehicle. The supporting plate is rotatable, and the carriage is displaceable with respect to the supporting plate in a direction corresponding to the transverse direction of the vehicle. Additionally, the carriage includes a rotatable structure which is configured to rotate the supporting plate about an axis of rotation.

The invention provides a ball bearing clearance measuring tool for a bulb tube, a ball bearing to be measured comprises a bearing body, a bearing outer ring and a rolling body, and the measuring tool comprises a support; the bearing support is provided with a bearing containing cavity used for containing the ball bearing, and the bearing outer ring is tightly pressed in the bearing containing cavity. The limiting mechanism is used for limiting the bearing outer ring to move relative to the bearing support in the axial direction of the ball bearing; the rotating mechanism is used for driving the support to rotate and further driving the bearing support to turn over by 180 degrees in the vertical direction, so that the ball bearing is switched between a first limit position and a second limit position, and the axial direction of the ball bearing is in the vertical direction at the first limit position and the second limit position; at the first limit position and the second limit position, the measuring mechanism respectively measures a first numerical value and a second numerical value representing the relative displacement of the bearing body and the bearing outer ring, and the first numerical value and the second numerical value are used for determining the axial clearance of the ball bearing. According to the scheme, the axial clearance measurement accuracy can be improved.

The invention provides an adjustable drum brake clearance measuring device, which comprises a device foundation, a brake assembly fixing structure, a brake drum fixing structure and a clearance measuring structure, and is characterized in that the device foundation is used as a fixed foundation structure of the whole clearance measuring device; a brake assembly fixing structure is fixedly arranged on the device foundation upwards, a brake assembly is fixedly installed in the horizontal direction through the brake assembly fixing structure, a brake drum fixing structure and the brake assembly fixing structure are coaxially arranged and arranged in a relative rotation mode, and a brake drum is fixedly installed on the brake drum fixing structure. The brake drum and the brake assembly form relative positions in a brake working state, and a detection part of the gap measuring structure is in contact with a brake lining of the brake assembly through a gap of the brake drum and obtains brake stroke data. The gap measuring device simulates the relative rotation state of the brake drum and the brake structure, data acquisition of gap change is realized, and the detection efficiency and precision are effectively improved.

The utility model discloses a worm gear and worm clearance detection device, which relates to the field of component detection and consists of a worm locking part, a worm gear and worm assembly chamber, a torque applying assembly and a clearance measuring assembly. The worm locking piece is inserted into the coupler connected with the worm through the clamping jaw, the clamping jaw pressing piece applies pressure to the clamping jaw so as to fasten the clamping jaw, the worm is fixed, and radial run-out of the worm is eliminated. The torque applying assembly is connected with the worm gear and applies torque to the worm gear. And the gap measuring assembly is connected with the torque applying assembly to measure the gap. The worm is fixed by the worm locking piece, so that the worm is only stressed in the axial direction and is not stressed in the radial direction, the measurement error is reduced, and the torque applying assembly can quantitatively apply the torque, so that the test reliability is improved.

The invention belongs to the technical field of detection, and particularly relates to a flange plate detection device and a detection method thereof. The flange plate detection device comprises a lifting disc which is arranged in a detection table in a lifting manner; the plurality of detection pieces are vertically arranged on the lifting disc, and one detection piece is matched with one fixing hole of the flange plate; the distance between two adjacent detection pieces is consistent with the hole distance of a qualified flange plate; the interior of the detection table is hollow, a bearing plate is horizontally arranged in the middle of the detection table, and the detection piece penetrates through the bearing plate; a plurality of limiting plates are arranged on the inner side wall of the detection table in a sliding mode, and one limiting plate corresponds to one detection piece and is in linkage with the lifting disc; when the lifting disc moves upwards, the limiting plates synchronously slide inwards in the radial direction so as to limit axial movement of the flange disc. The lifting disc drives the detection pieces to be inserted into the corresponding fixing holes, and the detection pieces axially move along the inner walls of the fixing holes so as to detect whether the hole diameter of the fixing holes and the hole distance between the adjacent fixing holes are qualified or not.

The invention is suitable for the technical field of data processing, and provides an intelligent distance measurement method and system applied to a distribution network line. The method comprises the following steps: firstly, acquiring to-be-evaluated coordinate information, first measurement moment information corresponding to the to-be-evaluated coordinate information, multiple pieces of actual measurement geographic coordinate information, second measurement moment information corresponding to each piece of geographic coordinate information and average detection speed information; then accurately generating coordinate credibility information according to the to-be-assessed coordinate information, the first measurement moment information, the multiple pieces of actual measurement geographic coordinate information, the multiple pieces of second measurement moment information and the detection speed information, then effectively generating credible coordinate information according to the to-be-assessed coordinate information and the coordinate credibility information, and finally determining the credible coordinate information according to the multiple pieces of credible coordinate information. And the distribution network line distance information is automatically generated. According to the method, more reliable data support can be provided for underground pipe network measurement, and the detection precision and the detection efficiency of data measurement are greatly improved.

The invention relates to the technical field of gear clearance detection, and discloses a gear clearance detection device, which comprises a three-coordinate measuring instrument body, a base, a turntable, an extrusion block and an extrusion arm. According to the gear detection device, the clamping plates are arranged, in the rotating process of the rotating disc, the rocker arm on the rotating disc drives the expansion plate to move, the expansion plate can drive the clamping plates to interact outwards from the inner side of a to-be-detected gear, then the to-be-detected gear is clamped, the tooth groove position of the to-be-detected gear is not affected, the purpose of protecting the to-be-detected gear is achieved, and the detection accuracy is improved; in the extrusion process of the clamping plate and the to-be-measured gear, an extrusion block drives a jacking block to move through an ejector rod, a synchronous plate on the jacking block can drive a fixed table to move, finally, a synchronous frame, a pull rod and a pull plate can be driven to move upwards, the to-be-measured gear can be integrally lifted through upward movement of the pull plate, and then sampling of the three-coordinate measuring instrument body is more convenient; and thus, the detection accuracy can be synchronously improved.

The invention provides a clearance measuring device for a small bearing. The clearance measuring device comprises a first accessory group and a second accessory group, the second accessory group comprises a plurality of accessory units corresponding to the model of the bearing to be detected; the first accessory group comprises a main gear, a fan-shaped rack meshed with the main gear, a dial indicator and a positioning assembly; by adopting the combination of the first accessory group and the second accessory group, the corresponding second accessory group can be selected and conveniently replaced according to the model of the bearing to be measured, so that one device can quickly adapt to different standard measuring forces required by various models of bearings; through meshing of the main gear and the fan-shaped rack, it is guaranteed that the pressure applied to the bearing is constant and can be repeated; the pressure value can be accurately set by replacing a force application spring and limiting of a corresponding limiting bolt and a stop pin, the standard measuring force requirements required by different bearing models are strictly met, and the accuracy and the reliability of a measuring result are fundamentally ensured.

The invention discloses a turnout space structure parameter intelligent detection device and a method thereof, which utilize laser scanning and multi-sensor fusion technology and integrate a mechanical-electrical integrated structure, realize effective detection of turnout space structure parameters, meet the rapid and comprehensive detection requirements of common single-open turnouts, and improve the detection efficiency. The defects of low efficiency and more missed judgment of manual patrol are overcome, the detection efficiency is greatly improved, and automatic and intelligent detection equipment and technical means are provided for a railway engineering site.

The utility model discloses a hand-held center distance gauge with a meter. The hand-held center distance gauge comprises a base. A main positioning pin is arranged at the bottom of one end of the base, and a second through hole is formed in the other end; an auxiliary positioning pin penetrates through the second through hole, the outer diameter of the auxiliary positioning pin is smaller than the inner diameter of the second through hole, and the top end of the auxiliary positioning pin is connected with a sliding block. The sliding block base is in sliding connection; a digital dial indicator is arranged on the top surface of the base; the measuring end of the digital dial indicator abuts against the sliding block. The gauge is convenient to operate and accurate in detection, realizes rapid detection of the center distance between two holes, is high in detection efficiency, and is suitable for batch detection.

The invention relates to a steel pipe port oblique cutting size measuring device and method, and the device comprises a rotating mechanism which is disposed at the bottom of a steel pipe and is used for supporting and rotating the steel pipe; the ruler abuts against the highest end point and the lowest end point of the to-be-measured port of the steel pipe; the stand column is arranged relative to the to-be-measured port, a certain distance is kept between the stand column and the to-be-measured port, the axis of the stand column is perpendicular to the horizontal plane, two laser distance measuring sensors are arranged on a column body of the stand column in a spaced mode, and the distance between the two laser distance measuring sensors is equal to the diameter of a steel pipe; the laser distance measuring sensor is used for measuring the distance between the laser distance measuring sensor and the ruler. According to the invention, the influence caused by the out-of-level axial lead of the steel pipe can be directly neglected, the oblique cutting size of the to-be-measured port of the steel pipe can be accurately measured, and the operation is convenient and simple.

An assembly and nozzle suitable ice dam abatement and other spraying applications is disclosed. A fluid spraying assembly as disclosed can include a nozzle through which fluid can pass and having an inlet and an outlet, and a depth gauge positioned adjacent to the outlet. The nozzle can discharge the fluid out of the outlet in a spray direction during operation. The depth gauge can include a shaft and a thermal insulator. The shaft can extend from the nozzle in the spray direction, can have an elongate shape, and can have a distal end that is spaced from the outlet in the spray direction. The thermal insulator can be positioned at least at the distal end of the shaft and can be a thermal insulating ball having a diameter that is greater than a width of the shaft and smaller than a width of the nozzle at the outlet.

The invention discloses a railway track online movement detection system and method, and relates to the technical field of rail detection, and the technical scheme is that the railway track online movement detection system comprises a detection management platform module, a signal processing module is arranged at the connection end of the detection management platform module, and a data processing module is arranged at the connection end of the signal processing module; the signal processing module comprises a track geometric parameter detection management module, a track fastener detection module and a foreign matter detection module, and the track geometric parameter detection management module comprises a track height detection module, a track gauge detection module, a track direction detection module, a horizontal detection module and a triangular pit detection module. The rail geometric parameter detection and management module comprises an image monitoring module, a laser photoelectric monitoring module and an ultrasonic monitoring module. The rail geometric parameter detection and management system has the beneficial effects that the working efficiency of an inspection mode is high, problems on a railway transportation line are found in time, a scientific and reasonable method is applied in time to maintain and repair the line, and good operation of the line and transportation safety are ensured.

The utility model discloses a joint bearing axial clearance detection tool, which comprises a pressing unit, a loading unit and a detection unit, and is characterized in that the pressing unit comprises an outer ring pressing assembly and an inner ring fixing assembly, and the outer ring pressing assembly presses and fixes an outer ring of a joint bearing; the inner ring fixing assembly fixes an inner ring of the knuckle bearing in the axial direction. The loading unit comprises a loading push rod, and the loading push rod can be controlled to push and pull the inner ring of the knuckle bearing with a set load so as to drive the inner ring of the knuckle bearing to move relative to the outer ring of the knuckle bearing in the axial direction; the detection unit comprises a displacement detector, and the displacement detector is used for detecting the axial clearance of the knuckle bearing; the pressing unit can respectively fix the inner ring and the outer ring of the joint bearing to be detected, the loading unit drives the inner ring to move relative to the outer ring with a set load, and the detection unit feeds back the size of the axial clearance through the displacement of the guide shaft or the pressing block. The detection tool provided by the utility model can effectively detect the size of the axial clearance of the knuckle bearing.

The utility model discloses an angular contact ball bearing clearance measuring device, and relates to the technical field of bearing parameter measurement. The device comprises a supporting base, a fixing assembly, a measuring assembly and a power driving assembly, the fixing assembly comprises an inner ring fixing plate, the inner ring fixing plate is connected with the supporting base through a first connecting rod, a bearing set is placed on the top of the inner ring fixing plate, and a fixing rod is rotationally arranged on the top of the inner ring fixing plate; protruding wheels are fixedly arranged on the circumferential side face of the fixing rod, the measuring assembly is installed on the top of the supporting base and comprises a dial indicator, the dial indicator is arranged above the bearing set, the power driving assembly comprises symmetrically-arranged first bevel gears, and a second connecting rod is fixedly arranged between the two first bevel gears. According to the utility model, through the specific structural design of the supporting base, the fixing assembly, the measuring assembly and the power driving assembly, the accuracy of the clearance distance measurement of the angular contact ball bearing is improved.

To provide a film thickness measurement method that makes it possible to measure the film thickness of an adhesive even when a crack occurs in the adhesive that is separated from a first member and a second member after a curing step.SOLUTION: A film thickness measurement method for an adhesive comprises a placement step, a curing step, a bonding step, and a measurement step. The placement step is for placing an adhesive on surfaces of bonding sites of a first member and a second member through release sheets. The release sheets are for preventing the first member and the second member from being bonded to each other by the adhesive. The curing step is for curing the adhesive. The bonding step is for taking out the cured adhesive and bonding a film. On the film, a position where the thickness of the adhesive is to be measured is marked. The measurement step is for measuring the thickness of the adhesive at the marked position.SELECTED DRAWING: Figure 1

A metrology apparatus includes an indexed articulated joint including: first and second relatively reorientable bodies, respectively having mutually engageable engagement elements, which can be locked together in different angular orientations about a first axis to provide a plurality of angularly indexed positions of the bodies; at least one verification sensor configured to provide a measure of the relative spatial configuration of bodies when in their locked state; and wherein the apparatus is configured such that when the bodies lock together at an indexed position, the sensor measures the relative spatial configuration of the bodies, and wherein information obtained from the measure is compared to calibration information obtained from at least one other measure of the relative spatial configuration of the bodies when the bodies were locked at said indexed position at an earlier point in time, in order to establish information about the state of engagement of the bodies.

The utility model belongs to the technical field of installation tools, particularly relates to an intelligent measuring and positioning tool for photovoltaic installation, and provides the following scheme aiming at the problems that the existing device is relatively heavy, is not easy to adjust, consumes a large amount of manpower and material resources when needing to move and is inconvenient to use: the intelligent measuring and positioning tool comprises two side plates, a fixed transverse plate is fixed between the two side plates; a limiting sliding plate is further arranged between the two side plates, a plurality of sliding blocks are arranged on the surface of the limiting sliding plate in a sliding mode, embedded column limiting frames used for limiting the embedded rods are fixed to the side ends of the multiple sliding blocks, and positioning assemblies used for fixing the sliding blocks are fixed into the multiple sliding blocks; the multiple sets of extrusion assemblies are used in cooperation with the multiple sets of positioning assemblies, and the multiple sets of extrusion assemblies are arranged in the multiple sliding blocks correspondingly and used for relieving positioning of the sliding blocks so that the sliding blocks can be moved conveniently; and the positions of the side plates are convenient to adjust, so that the device is more convenient to move, manpower and material resources are greatly saved, and use is convenient.

The invention discloses aqueduct butt joint gap detection equipment for hydraulic engineering, and relates to the technical field of detection equipment. Comprising a mounting groove plate, two positioning shafts, a mounting plate and a telescopic scale measuring piece, and a shielding mechanism is arranged on one side of the top of the mounting groove plate; the shielding mechanism comprises a supporting block, an electric telescopic rod, a shielding plate and shielding sliding plates, vertical sliding grooves are formed in the sides, close to the positioning shaft, of the two shielding sliding plates correspondingly, and sliding columns in sliding fit with the vertical sliding grooves are arranged on the outer wall of the positioning shaft. The shielding plate is pushed by the electric telescopic rod to move downwards along the inner wall of the aqueduct, and the shielding plate moves to drive the shielding sliding plate to move downwards along the sliding column, so that the butt joint of the aqueduct is shielded, and the situation that the butt joint is gradually enlarged due to the pressure of water flow and the like when a maintainer reaches the aqueduct is avoided; and therefore, the conditions of water leakage, structural stability damage and the like are avoided.

The utility model discloses a concrete crack detection device. The concrete crack detection device comprises a crack depth detector, a transducer and a transducer positioning bracket, the transducer positioning bracket comprises a central positioning seat, a sliding rod, two positioning sliding blocks and a horizontal ruler; an elastic telescopic positioning pin is arranged in the center of the bottom of the center positioning seat; the sliding rods are fixedly arranged on the central positioning seat in a penetrating manner and are symmetrically distributed relative to the positioning needle; wherein one positioning sliding block is connected to the sliding rod on one side of the center positioning seat in a sliding mode, and the other positioning sliding block is connected to the sliding rod on the other side of the center positioning seat in a sliding mode. Each positioning sliding block is provided with a transducer, and the two transducers are electrically connected with the crack depth detector. Length scales are arranged on the sliding rod; and the horizontal ruler is fixedly connected to the central positioning seat. According to the utility model, the crack center can be quickly positioned, the distance between the transducers can be accurately adjusted, and the measurement deviation can be reduced; and a steel ruler paintbrush is not needed to measure distance marks in the operation process, so that the operation is more convenient.

The invention discloses a novel welding seam detection ruler for supervision and inspection of a pressure container and a pressure pipeline, and relates to the technical field of welding seam detection, the novel welding seam detection ruler comprises two bases, a first ring hoop and a second ring hoop, the two sides of the two bases are connected with hinge pieces, and one sides of the hinge pieces are connected with the first ring hoop and the second ring hoop respectively; and one end of the surrounding hoop I and one end of the surrounding hoop II are connected with a butt joint block and a connecting block respectively. A to-be-detected pipeline or pressure vessel is correspondingly inserted between the first hoop and the second hoop, then the first hoop and the second hoop are pulled to turn over around the hinge piece and are fastened through the fixing bolts, sleeving connection can be achieved, the pressure pipeline and the pressure vessel are supported and fastened through the multiple inner attaching rollers, and therefore the pressure vessel and the pressure vessel can be conveniently and rapidly detected. Traditional magnetic attraction or adhesive fixation is replaced, poor contact and influence on the fastening effect caused by change of the curved surface rate are prevented, the effect of stabilizing the detection reference is achieved, displacement or shaking in the detection process is avoided, and the welding seam detection accuracy is ensured.

The utility model relates to the technical field of building construction, in particular to a shear wall steel bar protective layer cushion block spacing control measuring tool, which comprises a main ruler part, a first separation blade and a telescopic ruler part, one end of the extension ruler part is slidably inserted into one end, far away from the first separation blade, of the main ruler part, and a second separation blade is welded and fixed to the other end of the extension ruler part; the scale marks are arranged in front of the main ruler part and the telescopic ruler part; the first magnetic strip is pasted and fixed below the front surface of the main ruler part; the second magnetic strip is adsorbed in front of the first magnetic strip; one end of the main fixing band is fixedly connected with the second magnetic strip, and hook-and-loop fasteners are arranged at the two ends of the main fixing band; by improving the tool for controlling and measuring the distance between the cushion blocks of the reinforcing steel bar protective layer of the shear wall, the tool has the advantages that the cushion blocks are convenient to install, use and adjust, and the construction efficiency is improved, so that the problems and defects in the prior art and equipment are effectively solved.

The utility model discloses a harmonic speed reducer return stroke back clearance test platform, which relates to the technical field of harmonic speed reducers and comprises a test platform, a pressing mechanism, a fixing mechanism, a swing assembly and an auxiliary supporting mechanism. The right side of the harmonic speed reducer is an output end, the left side of the harmonic speed reducer is an input end, the right side of the harmonic speed reducer is provided with a fixing mechanism, the left side of the harmonic speed reducer is provided with a swing assembly, and the left side of the swing assembly is provided with an auxiliary supporting mechanism; the pressing mechanism comprises a supporting table, a pressing block, a guide assembly, arc-shaped limiting grooves, threaded holes, screws and a driving motor, the supporting table is fixed to the middle of the upper side of the testing platform through fastening bolts, the pressing block is arranged on the upper side of the supporting table, and the arc-shaped limiting grooves are formed in the middle of the upper side of the supporting table and the middle of the lower side of the pressing block. And more equipment is not required, the operation is relatively simple and convenient, the test cost is relatively low, and the practicability is relatively high.

The utility model discloses an inspection device for nuclear power station equipment installation. The inspection device comprises at least one inspection base body, a position measuring mechanism and a gap measuring mechanism. According to the inspection device for nuclear power station equipment installation, by arranging the inspection base body, the outer contour of a part can be truly restored, it is ensured that the form and location tolerance of the inspection device for nuclear power station equipment installation is consistent with that of the part, and the inspection base body is connected to the installation hole of the base through the installation interface, so that installation of the part is not affected; installation interfaces of parts and other parts are not damaged, damage-free installation of the inspection device for nuclear power station equipment installation is ensured, meanwhile, the action through hole is formed to provide an operation space for use of the gap measurement mechanism, reasonable measurement conditions can be provided, and measurement accuracy is improved. It is guaranteed that the gap between the outer wall face of the base body and the cavity wall of the part can be measured and inspected at each position, and the correctness of installation of the part can be guaranteed.

Provided is a generator stator-rotor gap measuring device. An existing measuring tool can determine the actual distance of a gap only by taking out and adjusting a positioning screw for multiple times during measurement, and is low in efficiency and large in measurement error during measurement. The device comprises an M-shaped supporting block, a handheld rod is fixed to the M-shaped supporting block, an operation box is fixed to the end of the handheld rod, semicircular insertion holes are formed in the two ends of the M-shaped supporting block respectively, a sliding rod is inserted into each semicircular insertion hole, the end of each sliding rod is connected with one end of a spring, and the other end of each sliding rod is connected with the other end of the spring. The other end of the spring is inserted into a circular groove in the middle of the M-shaped supporting block and is fixed; the two sides of the front end of the M-shaped supporting block are each provided with an insertion groove, and a suction cup electromagnet is fixed in each insertion groove. The device is used for measuring the stator-rotor gap of the generator.

A metrology apparatus including an articulated joint having: first and second bodies which can be locked together in a plurality of different angular orientations about a first axis; the first body including a prop which is actuatable by a motor between a retracted configuration at which the first and second bodies are in their locked state, and an extended configuration at which the first and second bodies are held apart by the prop along the first axis such that the first and second bodies are unlocked thereby permitting relative rotation of the first and second bodies, the prop and the second body being magnetically biased toward each other so as to magnetically retain the first and second bodies; and further including at least one supplemental bias member configured to bias the prop towards its retracted configuration.

The present invention discloses a hollow gear shaft gearbox bearing clearance measuring device and a measuring method, comprising a center pull rod, a special-shaped pressure block, a bearing assembly and a lever measuring assembly; the center pull rod penetrates the hollow gear shaft from top to bottom and is provided with a boss matched with the upper end of the hollow gear shaft, the special-shaped pressure block passes through the special-shaped hole at the bottom of the box body and is fixedly connected to the center pull rod; the upper end of the center pull rod is fixedly connected to the inner ring of the bearing in the bearing assembly; the lever measuring assembly is fixedly connected to the outer ring of the bearing in the bearing assembly; the center pull rod can rotate along the axial direction of the center pull rod relative to the lever measuring assembly, and the lever measuring assembly can apply a specified force to pull or press the center pull rod, so that the hollow gear shaft reaches the upper and lower limit positions respectively, thereby measuring the bearing clearance.