44 results about "Feeler gauge" patented technology

The invention relates to the technical field of pipeline welding, in particular to a thermal power plant pipeline system circumferential welding device which comprises a positioning and clamping set used for fixing a pipeline and further comprises a position adjusting set which is arranged on one side of the positioning and clamping set and comprises a movable sliding block. And a mounting seat is mounted at the upper end of the sliding block through a plurality of spring telescopic rods. By means of the alignment welding set and the guide reserving sets evenly distributed in the circumferential direction, the moving pipelines can be automatically guided, self-adaptive fine adjustment can be provided in the butt joint process of the two pipelines, the coaxiality can be fed back in real time, it is ensured that the ends of the two pipelines and the supporting ring are coaxially distributed, manual repeated calibration is not needed, and the production efficiency is improved. And in addition, the width of the welding seam between the two pipelines can be determined in the one-time alignment process, a feeler gauge does not need to be used for repeatedly detecting and adjusting the distance between the pipelines, and the pipeline welding efficiency is improved.

The utility model provides a special gap inspection device for elevator inspection, which relates to the technical field of elevator gap inspection, and comprises a vernier caliper and an elevator gap inspection feeler gauge, an inner diameter measuring jaw with a fixed position of the vernier caliper is provided with an insertion frame, the insertion frame is divided into an upper part and a lower part, and the upper part is sleeved with a connecting plate; the connecting plate is arranged, the two abutting rods are arranged on the connecting plate to abut against the inner wall of the side, close to the car door, of the elevator gap, and the inserting frame on the connecting plate assists one end of the fixed inner diameter measuring jaw of the vernier caliper to move to make contact with the inner wall of the side, close to the car door, of the elevator gap. And the floating inner diameter measuring jaw moves along the width direction of the elevator gap to one side far away from the elevator car door until the inner diameter measuring jaw is attached to the other side edge of the elevator gap, so that the width of the elevator gap can be measured, and contact interference with the elevator car door can be avoided in the measuring process.

The utility model relates to the technical field of elevators, and provides a feeler gauge for elevator detection, which comprises a connecting frame, a moving frame, an insertion hole, a support rod, a buffer spring, a moving block, a measuring plate, an insertion rod, a moving strip and an insertion column, the moving frame is arranged in the connecting frame, the outer side surface of the moving frame is provided with the insertion hole, the support rod is arranged in the moving frame, and the buffer spring is arranged on the moving block. A buffer spring is installed in the moving frame, a moving block is slidably connected into the moving frame, the measuring plate is installed on the inner side face of the moving block, the inserting rod is arranged in the measuring plate in a penetrating mode, a moving strip is installed at the end, away from the measuring plate, of the inserting rod, and an inserting column is installed on the side, close to the measuring plate, of the moving strip. The outer surfaces of the supporting rods penetrate through the buffer springs and the moving blocks, and the inserting columns penetrate through the inserting holes in the tops. According to the technical scheme, the problem that a feeler gauge is difficult to cling to a gap in the prior art is solved.

This utility model discloses a backplate flatness testing device, including a rotary table with a placement plane, a support plate disposed on the rotary table, the support plate having a support plane for adhering to the back of the backplate, a base having a mounting plane parallel to the base, an adjusting rod connected to the mounting plane, the adjusting rod being axially perpendicular to the mounting plane, a controllable movable sliding sleeve sleeved on the outside, a measuring rod disposed on the side of the sliding sleeve, a slot having a slot at the end of the measuring rod away from the sliding sleeve, an elastic element built into the slot, one end of the elastic element abutting against the inner wall of the slot, the other end being connected to a feeler gauge inserted into the slot, the feeler gauge having a measuring end, and the device also includes a controller connected to a torque sensor. This flatness testing device uses a torque sensor to provide real-time feedback on the contact state between the feeler gauge and the backplate, realizing controllable testing force, quantitative determination of contact gap, and data-driven testing results, thus improving the automation and accuracy of flatness testing.

The invention provides a compressor body bearing hole coaxiality detection structure and method, and belongs to the technical field of bearing hole coaxiality measurement, the compressor body bearing hole coaxiality detection structure comprises a crankshaft, a bearing seat, a positioning block, an adjusting frame and a measuring mechanism, the positioning block is clamped with a bearing seat subdivision surface, a stable and repeatable installation reference is established, and the bearing hole coaxiality is detected. The measuring mechanism is adjustably connected to the positioning block through the adjusting frame. The measuring head of the measuring mechanism abuts against the diameter surface of the crankshaft to detect the gap between the surface of the crankshaft on the left side and the right side of the center line of the crankshaft and the horizontal position of the surface of the bearing hole, the horizontal offset of the center of the bearing hole is directly measured through data displayed by the measuring mechanism, and then the coaxiality of the bearing hole is detected. And the situation of inaccurate measurement caused by inconsistent insertion depth of the feeler gauge and large manual judgment error is avoided. The coaxiality detection structure and method are high in universality and convenient to operate, the dependence of field detection on a special tool tile is reduced, and the detection efficiency and data reliability of the coaxiality of the bearing hole of the compressor body are improved.

The utility model discloses a PCB (printed circuit board) warpage measuring tool, which relates to the technical field of PCB detection, and comprises a measuring tool, the measuring tool is a right triangle plate, the included angle between the long straight edge and the bevel edge of the measuring tool is 10 degrees, the long straight edge of the measuring tool is provided with scale marks, and the bevel edge of the measuring tool is detachably provided with a support assembly. According to the utility model, the measuring tool is a right triangle with the angle of 10 degrees, the long straight edge of the measuring tool is provided with the scale marks, during measurement, the hypotenuse of the triangle is taken as the bottom, the measuring tool is inserted into the warping area, the scale of the long straight edge is read and recorded after insertion, and the warping value is obtained by multiplying the scale by sin 10 degrees, so that the measuring tool is simple and convenient to operate and does not need to be like a feeler gauge and a needle gauge; and different specifications need to be used for comparison one by one, so that the data measurement efficiency can be effectively improved.

The invention discloses a rail transit communication signal control detection device, and belongs to the technical field of rail transit communication control detection, the rail transit communication signal control detection device comprises a turnout controller and a turnout gap detection device.The turnout gap detection device comprises a detection trolley, a detection guide rail is arranged on the rear side of the advancing direction of the detection trolley, and a sliding sleeve is slidably connected to the detection guide rail; the sliding sleeve is driven by a driving device to slide on the detection guide rail, one side of the sliding sleeve is provided with a swing rod, and the lower end of the swing rod is fixedly connected with a beating hammer; the bottom of the sliding sleeve is hinged to a suspender, the lower end of the suspender is provided with a feeler gauge, and a hinge shaft of the suspender is provided with a torsion spring. The device has the advantages that the striking hammer strikes the turnout to detect whether a shaking gap exists in the turnout or not, and therefore detection is more comprehensive.

The invention provides a high-precision automatic centering assembly method for a lens barrel and a lens frame and a feeler gauge tool, the automatic centering assembly method comprises the following steps: assembling the lens frame in the lens barrel, and determining the gap size of a radial gap between the lens barrel and the lens frame, selecting a first feeler gauge with a preset specification according to the gap size; the lens frames are sequentially placed in the inner cavity of the lens barrel, and first feeler gauges are symmetrically arranged at the four-quadrant positions of the radial gap; and based on a four-quadrant multidirectional compensation method, applying equal pre-tightening force to a plurality of positions in the radial gap, and gradually adjusting the relative position of the lens frame in the lens barrel, so that the coaxiality and the inclination angle of the lens frame and the lens barrel reach preset precision. The problems of low assembly precision and large coaxiality deviation caused by part manufacturing tolerance and assembly eccentricity in the assembly process of the lens barrel and the lens frame in the prior art are solved.

The utility model discloses an elevator brake clearance rapid inspection device, a guide mechanism comprises a housing, one surface of the housing is provided with a mounting groove, the edge of the surface of the mounting groove is provided with a plurality of threaded holes, the inner side of the mounting groove is movably provided with a cover plate, and the surface of the cover plate is provided with connecting screws at positions close to the threaded holes in a penetrating manner. Screws on the surfaces of the cover plates are in threaded connection with the interiors of the threaded holes, sliding grooves are formed in the middle, the upper side and the lower side of the surfaces of the cover plates and extend in the horizontal direction, sliding blocks are slidably connected into the sliding grooves, and inserting shafts are fixedly connected to the sides, close to the interior of the shell, of the sliding blocks. The sliding blocks on the surface of the shell are pushed to drive the feeler gauges to stretch out and draw back, the multiple sliding blocks can drive the different feeler gauges to stretch out and unfold, then the brake gap can be rapidly detected conveniently, the feeler gauges do not need to be frequently pulled out and adjusted in the gap, and the gap detection efficiency is improved.

The utility model relates to the technical field of elevator maintenance, in particular to a feeler gauge for elevator door slot detection, which comprises a transverse plate, a connecting shaft is fixedly connected to the left side of the opposite side of the transverse plate in a penetrating manner, a gauge sheet is movably sleeved on the surface of the connecting shaft, and chutes are formed in the front side and the rear side of the opposite side of the transverse plate. A sliding block is slidably connected to an inner cavity of the sliding groove, and a scraper knife is riveted to the opposite side of the sliding block. Through cooperation of the sliding groove, the sliding block, the scraper knife, the frame body and the limiting block, the plastic strip is pressed, the plastic strip drives the lower pressing block to move downwards, the lower pressing block presses the limiting block downwards, limiting on the scraper knife is relieved at the moment, then the scraper knife is pulled towards the right side, and after the scraper knife moves to a certain position, the top of the limiting block extends into the through hole in the right side. And a user shovels and cleans impurities attached to the surface of the door frame through the scraper knife, and then measurement operation is carried out.

The utility model discloses a carpet left front and right front and back carpet assembly testing fixture, which comprises a chassis, a testing fixture main body, an auxiliary positioning mechanism, a positioning clamping mechanism and a detection mechanism, and is characterized in that the testing fixture main body is fixedly arranged in the middle of the chassis, sliding rails are symmetrically and fixedly arranged on the chassis front and back, a sliding frame is slidably arranged on the sliding rails, and positioning buckets are symmetrically and fixedly arranged below one side of the sliding frame; a carpet assembly is plugged into the positioning hopper, positioning reference holes are formed in the four corners of the carpet assembly in a matched mode, detection grooves are symmetrically formed in the detection tool body, positioning reference columns are fixedly arranged at the four corners in the detection grooves in a matched mode, a positioning clamping mechanism is arranged below the other side of the sliding frame, and a detection mechanism is arranged below the other side of the sliding frame. According to the utility model, automatic guiding and positioning of the carpet assembly are realized through cooperation of the slide rail and the positioning hopper, the detection efficiency is obviously improved by combining accurate alignment of the positioning reference hole and the reference column, and the gap pressure change can be monitored in real time and the size can be accurately judged through the detection mechanism integrating the pressure sensor and the feeler gauge.

The application relates to the technical field of glove machines, in particular to a glove machine assembling method and a glove machine.The glove machine assembling method increases the use of flatness testing tools to detect the flatness of the needle plate mounting surface of a wall plate assembly; based on the flatness detection result, if the flatness of the needle plate mounting surface of the wall plate assembly meets the requirements, the needle plate assembly is fixedly installed on the needle plate mounting surface of the wall plate assembly; if the flatness of the needle plate mounting surface of the wall plate assembly does not meet the requirements, the wall plate assembly is adjusted by using an adjusting piece; the assembling method converts the core reference precision which is originally dependent on experience and difficult to control into on-site and quantifiable rapid judgment by using the flatness testing tool and the feeler gauge, thereby ensuring the accuracy and consistency of the needle plate mounting reference at the assembling source; the low-efficiency mode of repeatedly disassembling and assembling part assemblies in traditional assembling is changed, and the assembling efficiency is significantly improved.

The utility model belongs to the technical field of aircraft maintenance, and discloses a gap measuring assembly, which comprises a reference piece and a measuring piece, the reference piece is provided with an arc surface, the arc surface is provided with scale marks extending along a first direction, and the measuring piece is arranged on the reference piece in a sliding manner along the first direction. The measuring piece is provided with a mark for pointing to the scale line, one end of the measuring piece in the first direction is provided with a measuring surface, the corresponding outer diameter of the measuring surface is gradually increased from one end away from the mark to one end close to the mark in the first direction, the arc surface is used for being in contact with one measured surface, and the measuring surface is used for being in contact with the other measured surface; the gap measuring assembly can measure the gap between the two measured surfaces, solves the problem that a traditional feeler gauge cannot measure the two measured surfaces which are curved surfaces, and is accurate and rapid in measurement and convenient to operate.

The utility model belongs to the technical field, and specifically relates to a die-casting end plate flatness measuring tool and measuring equipment. The die-casting end plate flatness measuring tool comprises a mounting seat, a base plate, a pressure sensor, a pressure sensor and a pressure sensor, the guide baffle and the limiting baffle are perpendicular to each other and are arranged on the bottom plate; the pressing device is arranged on the mounting seat and is used for pressing the to-be-tested product on the bottom plate; and the plurality of contact type displacement sensors are arranged on the bottom plate in a penetrating manner and are respectively used for acquiring Z-axis coordinate data of corresponding positions of the to-be-detected product. According to the die-casting end plate flatness measuring tool of the utility model, a product to be measured can be positioned through the guide baffle plate and the limiting baffle plate, the pressing device can press and fix the product to be measured, and the contact type displacement sensor can collect Z-axis coordinate data of a corresponding position of the product to be measured, so that the flatness of the product can be obtained. In other words, the die-casting end plate flatness measurement tool can replace a manual feeler gauge detection mode, and the measurement efficiency and stability are improved.

The utility model belongs to the field of wheel hub detection, and particularly relates to a wheel hub end face flatness detection device, which comprises a workbench, the bottom of the workbench is fixedly connected with supporting legs, the upper surface of the workbench is fixedly connected with a bearing seat, the inner wall of the bearing seat is fixedly connected with a first bearing, and the inner wall of the first bearing is fixedly connected with a second bearing. The inner ring of the first bearing is fixedly connected with a first cylinder, the upper surface of the first cylinder is fixedly connected with a detection disc, and the upper surface of the detection disc is fixedly connected with a gasket. Through cooperation of a rectangular cylinder, a strip-shaped hole, a first sliding block, a first limiting ring, a first U-shaped plate, a second limiting ring, a second sliding block, a semicircular groove, a semicircular block, a mounting frame, an electronic dial indicator, a transverse plate, a rectangular hole and a feeler gauge, when the detection device detects the flatness of the end face of the hub, the flatness of the end face of the hub is detected by observing readings on the electronic dial indicator; therefore, the flatness of the end face of the hub can be quickly and accurately judged.

The invention provides a double-gap detector and a use method thereof, relates to the technical field of double-gap detectors, and aims to solve the problems of poor precision and inconvenience in operation due to the fact that traditional double-gap measurement is performed by a feeler gauge measurement method or a dial indicator measurement method and the like. A dial indicator is arranged in the clamping groove; a detection steel ball is arranged on the dial indicator; the side edge of the detection rod is provided with a detection end. And the detection end is contacted with the detection steel ball. The detection piece is installed on the driving assembly through the fixed end and the puller nut, the gauge stand is arranged on the side edge of the installation piece and is made of a magnetic material, and therefore the gauge stand is completely attached and fixed to the non-shaking position of the installation piece, the detection steel ball of the dial gauge is attached to the detection end of the detection rod, the detection rod is pushed to the clamping stagnation position, and the detection piece is clamped. The dial gauge is adjusted to have a certain pre-pressing amount, the dial plate is shifted to return to zero, the detection rod is pulled to the clamping stagnation position in the other direction, the stroke of the dial gauge is observed and recorded, and the multiple gap value is obtained through the formula X / 5.

The invention provides an engine rotor blade tip assembly clearance measurement method, which comprises the following steps of S1, determining a plurality of axial positions of a blade tip according to the blade tip, rotating a rotor and measuring the average diameter of the determined positions through an optical measurement method; s2, determining the position of a casing corresponding to the position of a rotor blade tip, and measuring the average diameter of the position through an optical or three-coordinate measurement method; and S3, the actual clearance of the rotor blade tip is obtained through the measured casing diameter and the measured rotor blade tip diameter. Compared with a traditional method for measuring the blade tip clearance through a feeler gauge, the measuring error is greatly reduced. According to the measurement method, the diameter size measured through optics or three coordinates is the average size obtained by integrating all the blades, the measurement coverage is wide, and the credibility is high. In addition, detection at a fixed position can be met through advanced optical or three-coordinate measurement, the repeatability is high, and the precision of gap measurement can be further ensured.

The invention relates to the technical field of vehicle axle axial clearance detection, in particular to a heavy truck front drive steering axle half shaft axial clearance measuring device and method. The device comprises a measuring dial indicator, a measuring tool is installed on the end face, making contact with a measuring head, of the measuring dial indicator, the measuring tool is used for applying force to the end face of the half-shaft thrust washer and driving the end face of the half-shaft thrust washer to axially deform, and force is further applied to the half-shaft thrust washer through swing of a counter-force limiting pin. The measuring dial indicator is used for measuring the deformation of the end face of the half-shaft thrust washer. The measuring dial indicator is used for direct measurement, the design of the measuring tool is combined, inaccuracy caused by elastic deformation and operation errors in traditional feeler gauge measurement can be effectively reduced, the design of the counter-force cross and the counter-force limiting pin of the measuring tool can standardize force applied to the half-shaft thrust washer, and the measuring accuracy is improved. Measurement errors caused by different force application habits of operators are reduced, and repeatability and stability of the measurement process are ensured.

The invention relates to a 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint manufacturing method, and belongs to the technical field of melt-brazed lap joints, and the 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint manufacturing method comprises the steps that a 5052 aluminum alloy connecting pipe is turned into a needed joint form, and a 304 stainless steel connecting pipe is cut; the two prepared connecting pipes are assembled, the assembling gap between the 5052 aluminum alloy connecting pipe and the 304 stainless steel connecting pipe is measured through a vernier caliper and a feeler gauge, and the assembling gap should be 1 + / -0.5 mm; the FA-S-FS1 brazing flux is pre-smeared on the inner wall of the 5052 aluminum alloy connecting position and the outer wall of the stainless steel connecting position, the two connecting pipes are assembled in a lap joint mode after smearing, then the ring-mounted ER4047 brazing wire is pre-arranged at the lap joint seam, the whole connecting pipe is moved into a vacuum cover, vacuumizing is conducted after sealing is conducted, a high-frequency induction welding machine is started, the temperature of the whole connector is controlled to be lower than 650 DEG C, and welding is conducted. And heating can be stopped when the preset welding wire is completely melted. By means of the method, the 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint can be manufactured at low cost.

This invention relates to a low-cracking processing method for large-sized soft and brittle calcium fluoride crystals and to the field of crystal material processing technology. The method includes: placing the calcium fluoride crystal in the processing area for at least 48 hours; placing the crystal on a processing table and placing it for at least 0.5 hours; turning on the rotating table and circulating water of the processing equipment; spraying water in stages from the contact position between the crystal and the processing table, raising the spray position every half hour until the top of the rough crystal is reached, then stopping the rotation; adjusting the point contact processing device to the desired processing height; turning on the rotation; starting the wire cutting device for cutting; stopping the rotation and pausing the processing after cutting to a certain diameter remaining at the center; and symmetrically inserting at least four feeler gauges around the crystal and continuing processing until completion. This invention effectively reduces the risk of cracking caused by thermal and compressive stress during the rough forming process of large-sized soft and brittle calcium fluoride crystals, and improves the yield of finished products.

The invention provides a flatness measuring instrument and a flatness measuring method. The flatness measuring instrument comprises an installation body, a distance detection piece and a control host. Wherein the mounting body is provided with at least one mounting hole, and is provided with a reference part attached to a to-be-detected surface. The number of the distance detection piece is at least one. The distance detection members are respectively installed in the installation holes, and are used for detecting the distance values between the distance detection members and the to-be-detected surface. And the control host is in communication connection with each distance detection piece. According to the invention, the distance value between the distance detection piece and the to-be-detected surface is detected through the distance detection piece installed on the installation body, and then the plurality of detected distance values obtained through detection are analyzed and calculated to obtain the flatness of the to-be-detected surface, so that the degree of dependence of flatness measurement work on the experience of workers is reduced, and the flatness measurement efficiency is improved. The risk that the to-be-detected surface is scratched by the feeler gauge in the flatness measurement process is eliminated, and the flatness measurement efficiency and accuracy are improved.

This invention belongs to the field of mechanical assembly, specifically relating to a visual sealing component compression ratio measurement device and method. The device includes fastening bolts, an upper assembly flange, a sealing component, a lower assembly flange, fastening nuts, and a standard color matching tape. The upper and lower assembly flanges are connected and fixed by fastening bolts and nuts. The sealing component is installed on the platform of the lower assembly flange. The fastening bolts and nuts are adjusted to compress the sealing component. After tightening, the color of the sealing component is observed and compared with the standard color matching tape to confirm the compression ratio of the sealing component. This invention simplifies the flange tightening process, avoids the use of measuring instruments such as vernier calipers, depth gauges, and feeler gauges, and has lower personnel qualification requirements, effectively improving the efficiency and quality of flange tightening work.

This invention relates to the field of wind turbine blade inspection technology and discloses a wind turbine blade web mold gap detection device based on optical path reflection. The device includes: a support mechanism for fixing the wind turbine blade and web to be tested and providing a measurement reference; a movable measuring mechanism mounted on the support mechanism, movable along the length and / or width direction of the web to be tested; a laser emitting mechanism mounted on the movable measuring mechanism for emitting a ranging laser; and an optical path steering mechanism mounted on the movable measuring mechanism, positioned opposite the laser emitting mechanism, for converting the horizontal laser emitted by the laser emitting mechanism into a vertical projection onto the upper surface of the web. This invention employs the principle of laser reflection and phase ranging, avoiding contact between the web and tooling surface throughout the process, thus preventing scratches and contamination, achieving non-destructive testing, and protecting workpiece quality. Furthermore, the laser ranging accuracy is far superior to traditional contact measurement methods such as clay or feeler gauges, and the data consistency is strong.

The utility model relates to a vehicle-mounted camera support testing fixture, which comprises a base and an insert, the insert is embedded at the upper end of the base, and the end face, far away from the base, of the insert is the same as the profile of a support to be detected; the insert is provided with a positioning block at a position corresponding to the contour of the support to be detected, and the positioning block and the insert are integrally formed; a first supporting seat is arranged on one side of the insert, and a separable feeler gauge is arranged at the upper end of the first supporting seat; a second supporting seat is arranged on one side of the insert, and a detection pin is inserted into the second supporting seat; carrying handles are arranged on the two sides of the base, and foot pads are arranged at the lower end of the base. The vehicle-mounted camera support testing fixture has good strength, and the detection precision is ensured; the table surface, which is frequently contacted with the bracket, of the testing fixture is arranged as a detachable insert, so that daily maintenance and replacement are facilitated, and the use cost is reduced; and the inspection tools are stored on the supporting seat and are convenient to store and manage.

The invention relates to the technical field of quality inspection, and discloses a connecting rod forging blank offset inspection device and method, and the device comprises a reference main rod, an adjustable clamping seat, and a fastener. Adjusting the assembly height of the reference main rod and the adjustable clamping seat according to the thickness of the target workpiece, and relatively fixing the reference main rod and the adjustable clamping seat by using a fastener to complete the preparation of the inspection device; the to-be-detected blank is subjected to demolding and pretreatment and then placed on an inspection platform, the datum plane of an inspection device is placed on the upper plane of the to-be-detected blank, and the inspection device is moved along the datum plane; and when the first measuring surface or the second measuring surface is attached to the corresponding draft surface of the to-be-detected blank, measuring the size of a gap between the other measuring surface and the corresponding draft surface of the to-be-detected blank by using the filler gauge, and determining the offset according to a preset proportion of the size of the gap. The device structure and the operation process are optimized, the mode of first piece measurement and proportional sampling inspection in the process is implemented, the inspection strength is greatly reduced, and it is ensured that the device is suitable for normal-temperature and high-temperature inspection environments.

The utility model discloses a device for measuring the height difference between an expansion joint and a bridge floor in the field of measuring devices, which comprises a ruler and a plurality of movable feeler gauges, the movable feeler gauges are parallel to one another and are movably connected with the ruler, the movable feeler gauges are perpendicular to the ruler, scales are arranged on the movable feeler gauges, and the movable feeler gauges are arranged on the ruler. The scales are used for measuring the height difference between the expansion joint and the bridge floor. The movable filler gauges are movably connected to the ruler, the ruler is laterally erected on the expansion joint during use, one end of each movable filler gauge is in contact with the ground, and the side surfaces of the movable filler gauges and the ruler are in contact with the ground, so that the expansion joint is flush with a bridge floor; when the side surface of the ruler is suspended, one end of the movable filler gauge is contacted with the ground, the bridge floor height difference is measured through the scales on the movable filler gauge, and the bridge floor height difference measuring device is simple in structure and convenient to operate.

The utility model relates to the technical field of thermal insulation backing plate flatness detection, and discloses a thermal insulation backing plate surface flatness detection device which comprises a workbench, sliding assemblies are installed on the two sides of the workbench, and flattening frames are fixedly installed on the tops of the two sets of sliding assemblies corresponding to each other. The surface flatness of the thermal insulation backing plate can be judged and detected by holding the feeler gauge in the detection assembly, and when the feeler gauge can be completely plugged into the bottom of the side wall of the thermal insulation backing plate, the handle can be held to push the flattening frame, so that the flattening frame moves in the direction of the limiting sliding groove in the sliding assembly. After the flattening frame moves to the top of the uneven position of the thermal insulation backing plate, an electric push rod in the flattening mechanism is driven, a pressing plate is pushed to move downwards in the direction of a limiting rod, and when the pressing plate extrudes the thermal insulation backing plate until a feeler gauge cannot be inserted, the flatness of the surface of the thermal insulation backing plate can be detected; and the uneven position of the surface of the heat preservation backing plate is flattened.

The application discloses a closing resistor piece flatness testing tool and relates to the technical field of closing resistor piece manufacturing processes. The closing resistor piece flatness testing tool comprises a testing platform, a top plate, a pressing piece assembly and a feeler gauge. A plurality of support seats are fixed at the outer circumferential side of the testing platform. The closing resistor piece can be placed on the testing surface on the top of the testing platform. The top plate is fastened on the top of the plurality of support seats. The top plate is provided with lifting holes arranged perpendicularly to the testing surface. The pressing piece assembly comprises a pressing head and a lifting driving part. The pressing head is slidably connected with the lifting holes in the axial direction of the lifting holes. The feeler gauge is used for being inserted between the testing surface and the closing resistor piece to detect the flatness. The pressing head is slidably arranged along the lifting holes, which can keep the lifting stability, ensure that the pressing head is smoothly and uniformly pressed on the closing resistor piece, guarantee that the closing resistor piece is closely attached to the testing surface of the testing platform and improve the measurement accuracy.

The utility model relates to the technical field of precision measurement, and discloses a vernier feeler gauge with a display, which comprises a guide pillar main body and a reinforcing component arranged on the back side of the guide pillar main body. A measuring chock plug is arranged on the left side of the guide pillar main body, a lower measuring strip is arranged at the bottom of the guide pillar main body, a display is slidably mounted on the front surface of the guide pillar main body, a fixing frame shell is arranged at the bottom of the display, and a positioning zero plate is arranged on the left side of the display; the reinforcing component comprises a reinforcing shell plate, the reinforcing shell plate is arranged on the back side of the fixing frame shell, and a spiral adjusting clamping column connected with the reinforcing shell plate is arranged on the back side of the guide column body. According to the vernier feeler gauge with the display, accurate measurement and digital display of the size of a measured object are realized by setting accurate scales on the guide pillar main body and integrating the displacement sensor in the display, and the sliding distance can be captured in real time and converted into an electric signal, so that a measurement result is accurately displayed on the display.

The invention discloses a ship shafting alignment inspection method, which belongs to the technical field of ship construction process, aims at alignment inspection of ship shafting, and comprises the following steps of: 1, supporting an intermediate shaft by using an adjustable carrier roller, and aligning a tail shaft and a crankshaft; 2, a positioning bolt pre-tightens the intermediate shaft and the crankshaft flange to realize preliminary centering; 3, jacking adjusting devices which are in diagonal symmetry are installed in preset bolt holes of the crankshaft flange; 4, fixing a dial indicator through an angle steel bracket, and setting a zero position by taking a crankshaft flange as a reference; 5, the turning gear drives the shaft to rotate, and the reading of the dial indicator is recorded; 6, adjusting a jacking bolt according to the reading, so that the radial deviation of the flange is less than or equal to 0.03 mm; 7.0.03 mm feeler gauge verifies that the flange is attached, and then the positioning bolt is fastened. The problems that traditional alignment adjustment is tedious and measurement has a blind area are solved, the ship shafting alignment inspection method which is easy and convenient to operate, accurate in adjustment, reliable in measurement and higher in efficiency is provided, and the classification society inspection standard is met.