CN105588532A - Diameter measuring device for giant-scale member - Google Patents
Diameter measuring device for giant-scale member Download PDFInfo
- Publication number
- CN105588532A CN105588532A CN201610085344.6A CN201610085344A CN105588532A CN 105588532 A CN105588532 A CN 105588532A CN 201610085344 A CN201610085344 A CN 201610085344A CN 105588532 A CN105588532 A CN 105588532A
- Authority
- CN
- China
- Prior art keywords
- meter
- circle
- gear
- tolerance
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a diameter measuring device for a giant-scale member. The diameter measuring device comprises rubber wheels, a support frame, driving gears, a driven gear, a secondary driven gear, measurement devices, a handle, a measurement main gear, a measurement meter, measurement scales, a measurement pointer, a measurement main shaft, a convex ring, a convex ring opening, a transition gear, a circle-counting main gear, a circle-counting meter, a circle-counting pointer, a circle-counting main shaft and circle-counting scales. The rubber wheels are arranged on the lower part in front and back coaxiality and bilateral symmetry. The measurement devices include the measurement meter and the circle-counting meter. The measurement scales and the measurement pointer are arranged on the measurement meter. The circle-counting pointer and the circle-counting scales are arranged on the circle-counting meter. The diameter measuring device for the giant-scale member can solve the problem that a caliper fails to measure the giant-scale member due to the insufficient measuring length and can also solve the problem that the diameter measured by a tape is not precise enough, so that the labor productivity is substantially improved, and the measurement precision of the diameter of the giant-scale member is improved.
Description
Technical field
The invention belongs to huge diameter of part field of measuring technique, be specifically related to a kind of survey of huge diameter of partAmount device.
Background technology
Along with the continuous upgrading of China's advanced manufacturing industry and the continuous accumulation of Large-Scale Equipment manufacturing industry technology, greatlyType equipment is made industry field huge progress, and the Large-Scale Equipment manufacturing industry of China has also had significant progress,Will use in large-scale equipment manufacture field the part that diameter is larger, be particularly that specialty is raw as my companyProduce the manufacturing firm of the large-size pivoting support part on wind power generation, Nuclear Power Plant, in actual productionWill be according to client's requirement in processing, the pivoting support part that production and processing is large-scale, huge; But addingWhen those large-scale, huge pivoting supports of work according to the requirement of technique, need to be in process of manufactureThese large-scale, huge pivoting supports are carried out to the surveying work of diameter, or in production and processing good a collection of zeroInspection work to diameter of part when part etc., all need the part to processing to carry out the measurement inspection of diameterTest work; Measurement verification to this jumbo diameter of part in prior art is to use in common situationKind of calliper, but the limited length of the measurement of slide calliper rule, to such an extent as to can not measure verification to huge part,The precision of measuring by the words of tape measure is inadequate, but also needs more staff, and operating efficiency is low;Inventor has researched and developed a kind of measurement mechanism of huge diameter of part based on many defects of prior art, this hugeThe measurement mechanism of type diameter of part can solve the technical problem existing in prior art.
Summary of the invention
The present invention, in order to solve the problems of the technologies described above, provides a kind of measurement mechanism of huge diameter of part, and it is establishedCount simple in structure, practical and convenient; Can solve slide calliper rule because the length of measuring can not be measured huge part notProblem, can also solve by the accurate not problem of tape measure diameter, greatly improved labor productivity,Improve the certainty of measurement of huge diameter of part.
The technical solution adopted in the present invention is: a kind of measurement mechanism of huge diameter of part, comprise rubber wheel,Bracing frame, driven wheel, driven gear, inferior driven gear, measurement apparatus, handle, tolerance master gear,Meter, measure scales, tolerance pointer, tolerance main shaft, bulge loop, bulge loop opening, transition gear, meter circleMaster gear, meter circle table, meter aperture needle, meter circle main shaft, meter circle scale; Rubber wheel is arranged on bottom, left sideOne group of one group, right side, each group is two, front and back coaxial left-right symmetry; Bracing frame is arranged on rubber wheelTop, bracing frame is connected with the axle of left and right two groups of rubber wheels respectively; Driven wheel is set to two, respectivelyBe positioned at the centre position on the axle of left and right two groups of rubber wheels; Driven gear is arranged on the upper of two driven wheelsPortion, and engaging with two driven wheels, driven gear connects and the middle both sides of bracing frame by axle; Inferior fromMoving gear is arranged on the top of driven gear, and inferior driven gear is meshed with driven gear, and inferior driven gear is logicalExcess vol main shaft fixedly fixes on the middle both sides of bracing frame, and the outer end of tolerance main shaft is by measurement apparatus and toleranceMaster gear is fixedly connected; Measurement apparatus is divided into meter and meter circle table, is provided with tolerance and carves on meterDegree and tolerance pointer are provided with meter aperture needle and meter circle scale on meter circle table; Handle is arranged on bracing frameThe centre position on top; The surrounding of tolerance master gear is provided with bulge loop, and the top of bulge loop is provided with bulge loop opening,Position at bulge loop opening is provided with transition gear, and the top of transition gear is provided with meter circle master gear, meter circleMaster gear encloses main shaft by meter and is fixedly connected on measurement apparatus.
Described measure scales on meter is that the center of circle taking meter is as mid point, around the circumference of meterBe uniformly distributed, tolerance pointer is arranged on the outer end of tolerance main shaft.
Meter circle scale on described meter circle table be the center of circle of counting circle table be mid point, equal around the circumference of meter circle tableEven distribution, meter aperture needle is arranged on the outer end of meter circle main shaft.
The described position at bulge loop opening is provided with transition gear, and transition gear is connected and is arranged on tolerance by axleOn device.
The inner of described tolerance main shaft is connected with time driven gear, is provided with tolerance main in the outer end of tolerance main shaftGear and tolerance pointer.
Described handle is arranged on the centre position on the top of bracing frame, and it is inverted U-shaped that handle is.
The use procedure of the measurement mechanism of this huge diameter of part is: the huge part that needs are measured is putPut on support, grasp the cylindrical at huge part the measurement mechanism of the huge diameter of part of hand propelledSide face moves, and now the rubber wheel of the measurement mechanism of huge diameter of part is attached to outer circumference surface and moves, along withThe rotation of rubber wheel drives driven wheel to rotate, and driven wheel drives driven gear to rotate, and moving gear drivesInferior driven gear rotates, and inferior driven gear drives the tolerance master gear in measurement apparatus to turn in rotatingMoving, now the tolerance pointer in meter just starts to rotate, in the time that tolerance pointer rotates a circle, thisTime huge diameter of part the measurement mechanism girth of walking be 100mm; When the main tooth of the tolerance in meterWhen wheel turns to the position of bulge loop opening, tolerance master gear drives the transition gear of bulge loop opening part to turnMoving, transition gear drives meter circle master gear to rotate, and at this moment the meter aperture needle in meter circle table rotates oneMeter circle scale, a meter circle graduation apparatus indication scale rotates a circle; Promote huge diameter of part like thisMeasurement mechanism to the excircle around huge part is capable take a round after, have a look the meter aperture needle of counting circle tableThe girth of the huge part of corresponding meter circle scale calculating place of indication, according to the girth of huge part divided by circleFrequency calculates the diameter of part; When need to measuring another huge part, repeat above-mentioned steps.
Described rubber wheel is arranged on bottom, one group, left side, one group, right side, and each group is two, Qian HoutongAxle is symmetrical; The main purpose that adopts rubber wheel is that the measurement mechanism in order to increase huge diameter of part existsThe frictional force of huge part outer perimeter surface because the outer surface of the huge part processing be generally throughGlossing processing, if do not adopt flexible elastomeric material, due to surperficial frictional force is less willThe huge part girth inaccuracy that causes measurement, causes larger measure error; Corresponding survey huge zeroThere is larger error in the diameter of part.
Described driven wheel is set to two, lays respectively at the interposition on the axle of left and right two groups of rubber wheelsPut; Driven gear is arranged on the top of two driven wheels, and engages driven tooth with two driven wheelsWheel connects and the middle both sides of bracing frame by axle; Inferior driven gear is arranged on the top of driven gear, inferiorDriven gear is meshed with driven gear, inferior driven gear by tolerance main shaft fixedly fix on bracing frame inBetween both sides, tolerance main shaft outer end by measurement apparatus with tolerance master gear be fixedly connected; Design like thisMain purpose be rolling by rubber wheel stablize lasting power through driven wheel, driven gear,Inferior driven gear is sent on tolerance master gear, realizes the measurement of the outer perimeter to huge part.
Described measurement apparatus is divided into meter and meter circle table, is provided with measure scales and tolerance on meterPointer is provided with meter aperture needle and meter circle scale on meter circle table; Design can realize huge zero like thisThe measurement of part outer perimeter, can calculate again the measurement mechanism of huge diameter of part on huge part outer weekSeveral circles of having walked; In order to improve the accuracy of measurement, each lattice of the measure scales in meter be withMillimeter is unit, revolves the length turning around and can not meet the measurement needs to huge part outer perimeter, soJust design meter circle table.
The surrounding of described tolerance master gear is provided with bulge loop, and the top of bulge loop is provided with bulge loop opening, protrudingThe position of ring opening is provided with transition gear, and the top of transition gear is provided with meter circle master gear, and meter circle is mainGear encloses main shaft by meter and is fixedly connected on measurement apparatus; The main purpose of design is in order to pass through like thisThe effect of bulge loop realizes the function that meter is revolved to the meter circle after turning around.
Described measure scales on meter is that the center of circle taking meter is as mid point, around the circumference of meterBe uniformly distributed, tolerance pointer is arranged on the outer end of tolerance main shaft; Each lattice of measure scales on meter arrangeBe one millimeter, its main purpose is to improve the precision that this huge diameter of part is measured.
Meter circle scale on described meter circle table be the center of circle of counting circle table be mid point, equal around the circumference of meter circle tableEven distribution, meter aperture needle is arranged on the outer end of meter circle main shaft; Each lattice representative degree of meter circle scale on meter circle tableScale revolves that to turn around be 100mm.
Described handle is arranged on the centre position on the top of bracing frame, and it is inverted U-shaped that handle is; Design like thisMain purpose is the control for the convenient measurement mechanism direction to huge diameter of part of operating personnel, anotherAspect provides the thrust of advancing and walking to the measurement mechanism of huge diameter of part.
Beneficial effect of the present invention: the technical program provides a kind of measurement mechanism of huge diameter of part, and it is establishedCount simple in structure, practical and convenient; Can solve slide calliper rule because the length of measuring can not be measured huge part notProblem, can also solve by the accurate not problem of tape measure diameter, greatly improved labor productivity,Improve the certainty of measurement of huge diameter of part.
Brief description of the drawings
Fig. 1 is drive part structural representation of the present invention;
Fig. 2 is the structural representation of measurement apparatus of the present invention;
Fig. 3 is the outside schematic diagram of measurement apparatus of the present invention;
Mark in figure: 1, rubber wheel, 2, bracing frame, 3, driven wheel, 4, driven gear, 5, inferior fromMoving gear, 6, measurement apparatus, 7, handle, 8, tolerance master gear, 9, meter, 10, measure scales,11, tolerance pointer, 12, tolerance main shaft, 13, bulge loop, 14, bulge loop opening, 15, transition gear, 16,Meter circle master gear, 17, meter circle table, 18, meter aperture needle, 19, meter circle main shaft, 20, meter circle scale.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As Figure 1-3, a kind of measurement mechanism of huge diameter of part, comprise rubber wheel 1, bracing frame 2,Driven wheel 3, driven gear 4, inferior driven gear 5, measurement apparatus 6, handle 7, tolerance master gear 8,Meter 9, measure scales 10, tolerance pointer 11, tolerance main shaft 12, bulge loop 13, bulge loop opening 14,Transition gear 15, meter circle master gear 16, meter circle table 17, meter aperture needle 18, meter circle main shaft 19, meter circle are carvedDegree 20; Rubber wheel 1 is arranged on bottom, one group, left side, one group, right side, and each group is two, front and back are coaxialSymmetrical; Bracing frame 2 is arranged on the top of rubber wheel 1, bracing frame 2 respectively with left and right two groups of rubberThe axle of wheel 1 is connected; Driven wheel 3 is set to two, lays respectively on the axle of left and right two groups of rubber wheels 1Centre position; Driven gear 4 is arranged on the top of two driven wheels 3, and with two driven wheels 3Engagement, driven gear 4 connects and the middle both sides of bracing frame 2 by axle; Inferior driven gear 5 be arranged on fromThe top of moving gear 4, inferior driven gear 5 is meshed with driven gear 4, and inferior driven gear 5 is by toleranceMain shaft 12 fixedly fixes on the middle both sides of bracing frame 2, the outer end of tolerance main shaft 12 by measurement apparatus 6 withTolerance master gear 8 is fixedly connected; Measurement apparatus 6 is divided into meter 9 and meter circle table 17, at meter 9On be provided with measure scales 10 and tolerance pointer 11, on meter circle table 17, be provided with meter aperture needle 18 and meter circleScale 20; Handle 7 is arranged on the centre position on the top of bracing frame 2; The surrounding setting of tolerance master gear 8Have bulge loop 13, the top of bulge loop 13 is provided with bulge loop opening 14, is provided with in the position of bulge loop opening 14Cross gear 15, the top of transition gear 15 is provided with meter circle master gear 16, and meter circle master gear 16 encloses by meterMain shaft 19 is fixedly connected on measurement apparatus 6.
Described measure scales 10 on meter 9 is that the center of circle taking meter 9 is as mid point, around meter9 even circumferential distributes, and tolerance pointer 11 is arranged on the outer end of tolerance main shaft 12.
Meter circle scale 20 on described meter circle table 17 be the center of circle of counting circle table 17 be mid point, around meter circle table17 even circumferential distributes, and meter aperture needle 18 is arranged on the outer end of meter circle main shaft 19.
The described position at bulge loop opening 14 is provided with transition gear 15, and transition gear 15 is connected and established by axlePut on measurement apparatus 6.
The inner of described tolerance main shaft 12 is connected with time driven gear 5, is provided with in the outer end of tolerance main shaft 12Tolerance master gear 8 and tolerance pointer 11.
Described handle 7 is arranged on the centre position on the top of bracing frame 2, and handle 7 is inverted U-shaped.
The use procedure of the measurement mechanism of this huge diameter of part is: the huge part that needs are measured is putPut on support, grasp measurement mechanism that handle 7 promotes huge diameter of part outside huge partPeriphery moves, and now the rubber wheel 1 of the measurement mechanism of huge diameter of part is attached to outer circumference surface and moves,Rotate along with the rotation of rubber wheel 1 drives driven wheel 3, driven wheel 3 drives driven gear 4 to rotate,Moving gear 4 drives time driven gear 5 to rotate, and inferior driven gear 5 drives measurement apparatus in rotatingTolerance master gear 8 in 6 rotates, and now the tolerance pointer 11 in meter 9 just starts to rotate, degree of working asWhen amount pointer 11 rotates a circle, the girth that at this moment measurement mechanism of huge diameter of part is walked is100mm; When tolerance master gear 8 in meter 9 turns to the position of bulge loop opening 14 at that time,Tolerance master gear 8 drives the transition gear 15 at bulge loop opening 14 places to rotate, and transition gear 15 drives meter circleMaster gear rotates, and the meter aperture needle 18 of at this moment counting in circle table 17 rotates a meter circle scale 20,Individual meter circle scale 20 degree of a representation scales 9 rotate a circle; Promote the measurement mechanism of huge diameter of part like thisTo the excircle around huge part is capable take a round after, have a look 18 of meter aperture needles counting circle table 17The girth of the huge part of corresponding meter circle scale 20 calculating place referring to, according to the girth of huge part divided by circleFrequency calculates the diameter of part; When need to measuring another huge part, repeat above-mentioned steps.
Claims (6)
1. a measurement mechanism for huge diameter of part, comprise rubber wheel, bracing frame, driven wheel, driven gear,Inferior driven gear, measurement apparatus, handle, tolerance master gear, meter, measure scales, tolerance pointer,Tolerance main shaft, bulge loop, bulge loop opening, transition gear, meter circle master gear, meter circle table, meter aperture needle, meterCircle main shaft, meter circle scale; It is characterized in that: rubber wheel is arranged on bottom, one group, left side, one group, right side,Each group is two, front and back coaxial left-right symmetry; Bracing frame is arranged on the top of rubber wheel, and bracing frame respectivelyBe connected with the axle of left and right two groups of rubber wheels; Driven wheel is set to two, lays respectively at left and right two groups of rubbersCentre position on the axle of rubber tire; Driven gear is arranged on the top of two driven wheels, and with two drivingsGear engagement, driven gear connects by axle and the middle both sides of bracing frame; Inferior driven gear is arranged on drivenThe top of gear, inferior driven gear is meshed with driven gear, and inferior driven gear is fixing fixed by tolerance main shaftIn the middle both sides of bracing frame, the outer end of tolerance main shaft is fixedly connected by measurement apparatus and tolerance master gear;Measurement apparatus is divided into meter and meter circle table, is provided with measure scales and tolerance pointer, at meter on meterOn circle table, be provided with meter aperture needle and meter circle scale; Handle is arranged on the centre position on the top of bracing frame; DegreeThe surrounding of amount master gear is provided with bulge loop, and the top of bulge loop is provided with bulge loop opening, in the position of bulge loop openingBe provided with transition gear, the top of transition gear is provided with meter circle master gear, and meter circle master gear encloses main by meterAxle is fixedly connected on measurement apparatus.
2. the measurement mechanism of a kind of huge diameter of part according to claim 1, is characterized in that: meterOn measure scales be the center of circle taking meter as mid point, distribute around the even circumferential of meter, tolerance refers toPin is arranged on the outer end of tolerance main shaft.
3. the measurement mechanism of a kind of huge diameter of part according to claim 1, is characterized in that: meter circle tableOn meter circle scale be the center of circle of counting circle table be mid point, distribute around the even circumferential of meter circle table, meter circle refers toPin is arranged on the outer end of meter circle main shaft.
4. the measurement mechanism of a kind of huge diameter of part according to claim 1, is characterized in that: bulge loop is openedThe position of mouth is provided with transition gear, and transition gear is connected and is arranged on measurement apparatus by axle.
5. the measurement mechanism of a kind of huge diameter of part according to claim 1, is characterized in that: tolerance is mainThe inner of axle is connected with time driven gear, is provided with tolerance master gear and tolerance pointer in the outer end of tolerance main shaft.
6. the measurement mechanism of a kind of huge diameter of part according to claim 1, is characterized in that: handle is establishedPut in the centre position on the top of bracing frame, it is inverted U-shaped that handle is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085344.6A CN105588532B (en) | 2016-02-04 | 2016-02-04 | A kind of measurement apparatus of huge diameter of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085344.6A CN105588532B (en) | 2016-02-04 | 2016-02-04 | A kind of measurement apparatus of huge diameter of part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105588532A true CN105588532A (en) | 2016-05-18 |
| CN105588532B CN105588532B (en) | 2018-02-13 |
Family
ID=55928296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610085344.6A Active CN105588532B (en) | 2016-02-04 | 2016-02-04 | A kind of measurement apparatus of huge diameter of part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105588532B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993566Y (en) * | 2006-12-22 | 2007-12-19 | 刘奥 | Circle circumference measuring device |
| CN101113884A (en) * | 2007-07-18 | 2008-01-30 | 东南大学 | Portable universal large diameter measuring gage used for greatness diameter measurement and measurement method thereof |
| KR100811619B1 (en) * | 2006-12-11 | 2008-03-11 | 기아자동차주식회사 | Masurement device for external diameter of gear |
| JP2010243383A (en) * | 2009-04-08 | 2010-10-28 | Chugoku Electric Power Co Inc:The | Tree diameter measuring instrument |
| CN203772250U (en) * | 2014-04-03 | 2014-08-13 | 北华航天工业学院 | A multi-rolling wheel large diameter measuring device |
| CN205383973U (en) * | 2016-02-04 | 2016-07-13 | 洛阳新强联回转支承股份有限公司 | Measurement device for huge part diameter |
-
2016
- 2016-02-04 CN CN201610085344.6A patent/CN105588532B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100811619B1 (en) * | 2006-12-11 | 2008-03-11 | 기아자동차주식회사 | Masurement device for external diameter of gear |
| CN200993566Y (en) * | 2006-12-22 | 2007-12-19 | 刘奥 | Circle circumference measuring device |
| CN101113884A (en) * | 2007-07-18 | 2008-01-30 | 东南大学 | Portable universal large diameter measuring gage used for greatness diameter measurement and measurement method thereof |
| JP2010243383A (en) * | 2009-04-08 | 2010-10-28 | Chugoku Electric Power Co Inc:The | Tree diameter measuring instrument |
| CN203772250U (en) * | 2014-04-03 | 2014-08-13 | 北华航天工业学院 | A multi-rolling wheel large diameter measuring device |
| CN205383973U (en) * | 2016-02-04 | 2016-07-13 | 洛阳新强联回转支承股份有限公司 | Measurement device for huge part diameter |
Non-Patent Citations (1)
| Title |
|---|
| 史庆伟等: "滚轮法大直径测量精度研究", 《天津大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105588532B (en) | 2018-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104155111A (en) | Engine erecting dolly centering apparatus and centering method thereof | |
| CN105547699A (en) | Method and device for load distribution measurement in bearing | |
| CN202188806U (en) | Radial play eccentricity measuring device | |
| CN205383973U (en) | Measurement device for huge part diameter | |
| CN204286265U (en) | Slewing bearing gear ring radial pulsation measurement device | |
| CN105588532A (en) | Diameter measuring device for giant-scale member | |
| CN203848770U (en) | Improved-type bearing circle run-out detecting device | |
| CN106363248B (en) | A kind of self-positioning and grading method for large-scale straight-tooth wheel shaping roll flute | |
| CN205748367U (en) | Sensor is monitored in a kind of horizontal displacement automatically | |
| CN202747984U (en) | Special tool for rapidly measuring radian of bearing bush of steam turbine | |
| CN205088284U (en) | Take location structure's ring gear quenching deformation detection device in advance | |
| CN203364727U (en) | Device for measuring radial gap of centripetal ball bearing and cylinder roller bearing | |
| CN201712357U (en) | Rotating drawing scale | |
| CN102032855A (en) | Device and method for measuring radial runout of wind power bearing | |
| CN206696138U (en) | Continuous type concrete injection resistance meter | |
| CN209802326U (en) | Concrete crack depth detection device | |
| CN201408609Y (en) | Fan-shaped cable conductor die seat with fan-height measuring staff gauge | |
| CN211552669U (en) | Plant measuring ruler | |
| CN105509605B (en) | Meter counter | |
| CN103822561A (en) | Rolling distance measuring instrument | |
| CN202661413U (en) | Special orientation device for sapphire crystal | |
| CN203231717U (en) | Feeding barrel simulation device used for infrared ray heating loop detection assembling | |
| CN206056412U (en) | A kind of thin steel ring part bounce gauge | |
| CN205102745U (en) | Bearing inner race measuring device | |
| CN205373581U (en) | Gear ring radial runout measures intelligent lazytongs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |