CN109539954A - A kind of application method of the coaxial calibrating installation of equal diameter bar - Google Patents
A kind of application method of the coaxial calibrating installation of equal diameter bar Download PDFInfo
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- CN109539954A CN109539954A CN201811326802.6A CN201811326802A CN109539954A CN 109539954 A CN109539954 A CN 109539954A CN 201811326802 A CN201811326802 A CN 201811326802A CN 109539954 A CN109539954 A CN 109539954A
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- calibration
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- equal diameter
- checking scale
- pedestal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to a kind of application methods of coaxial calibrating installation of equal diameter bar, belong to mechanical engineering, Mechanics Performance Testing and pipeline abrasive flows cleaning technology field, it solves the problems, such as the coaxial calibration accuracy difference of equal diameter bar and generates fastening deviation phenomenon when fixing after calibrating, solution are as follows: adjustment benchmark checking scale screws in the length in benchmark checking scale fastening nut, is aligned the zero graduation line of benchmark checking scale and the trailing flank of vertical calibration pedestal；Several sizing stops on mobile and horizontal calibration pedestal in through slot respectively, are bonded the side wall of each sizing stop with corresponding benchmark checking scale；The length that the first calibration bolt, the second calibration bolt and third calibration bolt screw in corresponding calibration nut is adjusted, several equal diameter bars are successively penetrated in the through-hole being arranged on sizing stop, equal diameter bar concentricity at adjacent calibration station can be realized and calibrate.Calibration accuracy of the present invention is high, easy to operate, effectively reduces error when same axis calibration.
Description
Technical field
The invention belongs to mechanical engineering, Mechanics Performance Testing and pipeline abrasive flows cleaning technology fields, are related to a kind of equal straight
The application method of the coaxial calibrating installation of diameter bar, in particular to one kind are mainly used in equal diameter bar coaxial line and place and carry out
Adjust the calibration method of operation.
Background technique
It needs in same axis accurately to put two even more equal diameter long axis class rod pieces, rods etc. in some operating conditions
It sets, such as in the Hopkinson pressure bar device for carrying out Mechanics Performance Testing for material, in order to improve mechanical experimental results
Accuracy, need for two equal diameter bars of incident bar and transmission bar to be placed on same axis.In the prior art, in order to protect
The concentricity of incident bar and transmission bar is demonstrate,proved, usually by manually adjusting the pedestal of incident bar and transmission bar, allows two equal diameter bars
End face is overlapped, so that the axis of two equal diameter bars is on same straight line, is then fixed pedestal with bolt.But with bolt
It tightens during pedestal since the effect of lashing force can be such that bar bracket moves, so that two equal diameter bars shift, from
And the same axis of guarantee equal diameter bar for being unable to pinpoint accuracy is placed.Therefore it needs a set of easy to operate and high calibration accuracy etc.
The coaxial calibrating installation of diameter poles.
Summary of the invention
In order to overcome the shortcomings of the prior art, accurate measurement can not be carried out by solving the above-mentioned process of adjustment in the prior art
Deviation phenomenon is fastened with leading to the problem of when fixing after calibration, a kind of user of the coaxial calibrating installation of equal diameter bar of the present invention
Method, can facilitate operation, accurately, reliable realize that two or more equal diameter bar coaxial lines are placed.
The present invention is achieved by the following technical programs.
A kind of application method of the coaxial calibrating installation of equal diameter bar, comprising the following steps:
I, adjustment benchmark checking scale screws in the length in benchmark checking scale fastening nut, makes the zero graduation line of benchmark checking scale and erects
The trailing flank alignment of straight calibration pedestal；
II, several sizing stops on mobile and horizontal calibration pedestal in through slot respectively, make the side wall of each sizing stop with it is corresponding
Benchmark checking scale fitting；
III, the first calibration bolt of adjustment screws in the length in corresponding calibration nut, the first calibration bolt with the second calibration bolt
Calibrate pallet assembly with the lower end level of compression elasticity of the second calibration bolt, so adjust horizontal resiliency calibration pallet assembly with
The distance between through slot bottom surface verifies the horizontal scratch for the cross scratch being arranged on sizing stop side wall with corresponding benchmark
The upper edge of ruler is concordant；
IV, adjustment third calibration bolt screws in the length in corresponding calibration nut, and third calibration bolt passes through sizing stop pressure
Tight vertical elasticity calibration pallet assembly, and then the distance between vertical elasticity calibration pallet assembly and vertical calibration pedestal are adjusted,
Keep the vertical scratch for the cross scratch being arranged on sizing stop side wall opposite with the identical graduation line of corresponding benchmark checking scale
Together；
V, several equal diameter bars are successively penetrated in the through-hole being arranged on sizing stop, can be realized at adjacent calibration station etc.
The calibration of diameter poles concentricity.
Further, in the step V, the quantity for calibrating station is identical as the quantity of equal diameter bar.
A kind of coaxial calibrating installation of equal diameter bar, it includes calibration pedestal, calibration station and elasticity calibration pallet assembly, institute
Stating elasticity calibration pallet assembly includes that horizontal resiliency calibration pallet assembly and vertical elasticity calibrate pallet assembly, in which: the school
Quasi- pedestal includes horizontal alignment pedestal and vertical calibration pedestal, and vertical pedestal of calibrating is arranged vertically upwards on horizontal alignment pedestal
The side of side, the length direction on horizontal alignment pedestal along calibration pedestal are provided with through slot, set at the aperture position on through slot top
It is equipped with interior side calibration ear mount and outer side calibration ear mount, interior side calibration ear mount and outer side calibration ear mount are oppositely arranged, the horizontal bullet
Property calibration pallet assembly be set to the bottom of through slot, passes through between the bottom surface of horizontal resiliency calibration pallet assembly and the bottom surface of through slot
Spring connection；
Axis direction on the calibration pedestal along through slot is disposed at least two calibration stations, and the calibration station includes calibration
Bracket, benchmark checking scale and calibration bolt, the calibration bolt include the first calibration bolt, the second calibration bolt and third calibration
Bolt, sizing stop are arranged vertically upwards in the top of horizontal resiliency calibration pallet assembly, each calibration station packet
The sizing stop of two coaxial arrangements is included, two sizing stops are set to the head and the tail both ends of calibration station, the top of sizing stop
It is provided with the through-hole for installing equal diameter bar, the axis direction of through-hole and the axis direction of through slot are parallel to each other, in calibration branch
On the side wall of frame and be located at through-hole below be provided with cross scratch, on the vertical calibration pedestal with each sizing stop
Position corresponding position is provided with benchmark checking scale guide hole, and one end of benchmark checking scale extends to through slot through benchmark checking scale guide hole
Top, the other end of benchmark checking scale extends to the outside of vertical calibration pedestal, is provided on the outer end of benchmark checking scale
Benchmark checking scale fastens nut, and benchmark checking scale fastens nut and is fixedly connected with the side wall of vertical calibration pedestal, benchmark checking scale
On be provided with scale；The first calibration bolt guide hole, outer side calibration ear mount are provided in the outer side calibration ear mount along the vertical direction
It is above horizontally disposed to have third calibration bolt guide hole, axis and the third calibration bolt guide hole of the first calibration bolt guide hole
Axis antarafacial is vertical, is provided with the second calibration bolt guide hole, the second calibration bolt along the vertical direction in the interior side calibration ear mount
Guide hole and the first calibration bolt guide hole are symmetrical arranged about the axis direction of through slot, the first calibration bolt guide hole, the second calibration spiral shell
Calibration nut identical with corresponding guide hole diameter is fixedly installed on the lateral surface of bolt guide hole and third calibration bolt guide hole,
First calibration bolt is installed on straight down in the first calibration bolt guide hole, and the second calibration bolt is installed on straight down
In two calibration bolt guide holes, the end level of compression elasticity of the first calibration bolt and the second calibration bolt calibrates pallet assembly, the
It is installed on after three calibration bolt horizontal directions in third calibration bolt guide hole, before the end of third calibration bolt compresses sizing stop
Side wall, the vertical elasticity calibration pallet assembly are set to forward the corresponding inside school of each sizing stop also through spring horizontal
In the front surface of quasi- ear mount, the front end face of vertical elasticity calibration pallet assembly compresses the rear wall of sizing stop.
Further, perpendicular where the axis of vertical plane and benchmark checking scale guide hole where the axis of the third calibration bolt
The distance between face directly are as follows: the nominal diameter of third calibration bolt and times of the sum of benchmark checking scale guide hole diameter.
Further, six roots of sensation bullet is evenly equipped between the bottom surface of the horizontal resiliency calibration pallet assembly and the bottom surface of through slot
Spring, the vertical property are calibrated uniformly distributed between the rear end face of pallet assembly and interior side calibration ear mount and the front surface of interior side calibration ear mount
There are four springs.
Further, the distance between the cross scratch and through-hole side wall are equal to the length of through-hole diameter.
Further, the benchmark checking scale is set as cylindrical body, and benchmark checking scale is close to vertical calibration pedestal side
Screw thread is provided on side wall, scale is set to the middle part of benchmark checking scale and extends close to sizing stop side, and zero quarter
Degree line is set to the middle part side of benchmark checking scale.
Further, the precision of the scale is 1mm.
A kind of preparation method of the coaxial calibrating installation of equal diameter bar, comprising the following steps:
1., calibration pedestal is arranged vertically upwards the side above horizontal alignment pedestal vertically, along length on horizontal alignment pedestal
Direction opens up the through slot of inverted T-shape, and the side of close vertical calibration pedestal is set as inside school at the aperture position on through slot top
Quasi- ear mount, the side far from vertical calibration pedestal at the aperture position on through slot top are set as outer side calibration ear mount, horizontal resiliency
The lower surface of level tray is fixedly connected with one end of several springs in calibration pallet assembly, the fixed peace of the other end of several springs
On bottom surface loaded on through slot；
If 2., on the rear wall of calibration pedestal vertically open up dry basis checking scale guide hole, benchmark checking scale fastens nut and fixes
It is installed on the rear wall of vertical calibration pedestal and is coaxially disposed with benchmark checking scale guide hole, benchmark checking scale fastens nut inner ring
Diameter it is identical as the diameter of benchmark checking scale guide hole；It is provided with the first calibration along the vertical direction in the outer side calibration ear mount
Bolt guide hole, it is horizontally disposed in outer side calibration ear mount to have third calibration bolt guide hole, the axis of the first calibration bolt guide hole
Line is vertical with the axis antarafacial of third calibration bolt guide hole, is provided with the second calibration along the vertical direction in the interior side calibration ear mount
Bolt guide hole, the second calibration bolt guide hole and the first calibration bolt guide hole are symmetrical arranged about the axis direction of through slot, the first school
It is fixedly installed on the lateral surface of quasi- bolt guide hole, the second calibration bolt guide hole and third calibration bolt guide hole and is led with corresponding
The identical calibration nut of bore dia；
3., vertical elasticity calibration pallet assembly is fixedly connected with one end of spring, the other end of spring is fixedly installed in each
On the leading flank of the interior side calibration ear mount of benchmark checking scale guide hole position lower position；
4., several sizing stops are pushed in turn in through slot from one end of through slot, the position for adjusting sizing stop makes sizing stop
It is respectively arranged at the corresponding position of vertical elasticity calibration pallet assembly, vertical elasticity calibration pallet compresses corresponding sizing stop
Rear wall；
5., the first calibration bolt is installed in the first calibration bolt guide hole, the second calibration bolt is installed on the second calibration spiral shell
In bolt guide hole, the screw-in length of the first calibration bolt and the second calibration bolt relative to calibration nut is adjusted, the first calibration spiral shell is made
Bolt and the second calibration bolt level of compression elasticity calibrate pallet assembly；Third calibration bolt is installed on third calibration bolt guide hole
In, screw-in length of the third calibration bolt relative to calibration nut is adjusted, third calibration bolt is made to compress corresponding sizing stop
Front side wall；
6., if dry basis checking scale respectively corresponded according to identical graduation direction be installed in benchmark checking scale guide hole, and make
Benchmark checking scale one end with a scale extends to the top of through slot through benchmark checking scale guide hole.
Compared with prior art the invention has the benefit that
I, for the first time using cylindrical benchmark checking scale, adjustment process when for equal diameter bar coaxial placement has carried out accurate meter
Amount, effectively reduces error when same axis calibration.
II, the fastening deviation phenomenon generated when fixing after prior art alignment is solved, improve calibration result can
By property.
III, it after solving pedestal fixation in the prior art, cannot be finely adjusted again for the placement location of equal diameter bar
Problem.
IV, providing one kind, there are essential distinctions from calibrating principle, can be realized reciprocity diameter poles coaxial placement calibration
Device, the device of operation prepare and the technical solution of the application method of device.
Detailed description of the invention
Fig. 1 is right side structural representation of the present invention.
Fig. 2 is overlooking structure diagram of the present invention.
Fig. 3 is sizing stop right side structural representation.
Fig. 4 is benchmark checking scale overlooking structure diagram.
In figure, 1 is horizontal alignment pedestal, and 2 be vertical calibration pedestal, and 3 calibrate pallet assembly for horizontal resiliency, and 4 be through slot,
5 be benchmark checking scale guide hole, and 6 fasten nut for benchmark checking scale, and 7 be benchmark checking scale, and 8 be sizing stop, and 9 be through-hole, 10
For scratch, 11 be the first calibration bolt, and 12 be calibration nut, and 13 be the first calibration bolt guide hole, and 14 be the second calibration bolt, 15
For the second calibration bolt guide hole, 16 be third calibration bolt, and 17 be third calibration bolt guide hole, and 18 be outer side calibration ear mount, 19
It is interior side calibration ear mount for vertical elasticity calibration pallet assembly, 20.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment one
As shown in Figures 1 to 4, two calibration works for calibrating two equal diameter bar concentricities are provided in the present embodiment one
Position, i.e., the first calibration station and the second calibration station, the first calibration station include the first sizing stop 8 and the second calibration branch
Frame 8, the second calibration station includes third sizing stop 8 and the 4th sizing stop 8, installs equal diameter bar as shown in Figure 1 to Figure 2
Coaxial calibrating installation:
I, by the bottom plate of six roots of sensation spring and 1 through slot 4 of horizontal alignment pedestal under the level tray of horizontal resiliency calibration pallet assembly 3
It is fixedly connected by welding and is integrated.
II, four benchmark checking scale guide holes 5, benchmark school are respectively arranged at the isometry position on calibration pedestal 2 vertically
Ruler fastening nut 6 is tested to be welded on the rear wall of vertical calibration pedestal 2 and be coaxially disposed with benchmark checking scale guide hole 5, benchmark school
The diameter for testing ruler fastening 6 inner ring of nut is identical as the diameter of benchmark checking scale guide hole 5.
III, vertical elasticity calibration pallet assembly 19 is separately mounted to corresponding below each benchmark checking scale guide hole 5
In the front surface of interior side calibration ear mount 20, and make it is each it is vertical elasticity calibration pallet assembly 19 axis direction with it is corresponding interior
The axis direction for the second calibration bolt guide hole 15 being arranged in side calibration ear mount 20 is vertical.
IV, be respectively set in the corresponding outer side calibration ear mount 18 of each sizing stop 8 first calibration bolt guide hole 13 with
Second calibration bolt guide hole 15, the axis of the first calibration bolt guide hole 13 and the axis antarafacial of third calibration bolt guide hole 17 hang down
Directly, third calibration bolt guide hole 17 is respectively set in the corresponding interior side calibration ear mount 20 of each sizing stop 8, in the first calibration
Be fixedly installed on the lateral surface of bolt guide hole 13, the second calibration bolt guide hole 15 and third calibration bolt guide hole 17 with it is corresponding
The identical calibration nut 12 of guide hole diameter.
V, by the first sizing stop 8, the second sizing stop 8, third sizing stop 8 and the 4th sizing stop 8 along through slot 4
Four vertical elasticity calibration 19 corresponding positions of pallet assembly are successively slid into, each vertical elasticity calibration pallet assembly 19 compresses
The rear wall of corresponding sizing stop 8.
VI, at for each 8 position of sizing stop: the first calibration bolt 11 is installed on the through calibration nut 12 is corresponding
In one calibration bolt guide hole 13, the second calibration bolt 14 is installed on the second calibration bolt guide hole 15 through the correspondence of calibration nut 12
In, third calibration bolt 16 is installed in third calibration bolt guide hole 17 through the correspondence of calibration nut 12, adjusts calibration bolt
The length in calibration nut 12 is screwed in, keeps the first calibration bolt 11 and 14 level of compression elasticity of the second calibration bolt calibration pallet total
At 3, compress third calibration bolt 16 corresponding sizing stop 8 with corresponding vertical elasticity calibration pallet assembly 19.
VII, four foundation pre-check rulers 7 are fastened into the correspondence of nut 6 through benchmark checking scale and is installed on benchmark checking scale guide hole 5
In, complete the installation of the coaxial calibrating installation of this equal diameter bar.
When carrying out two equal diameter bars calibrations using the coaxial calibrating installation of this equal diameter bar, comprising the following steps:
I, adjustment benchmark checking scale 7 screws in the length in benchmark checking scale fastening nut 6, makes the zero graduation line of benchmark checking scale 7
It is aligned with the trailing flank of vertical calibration pedestal 2；
II, several sizing stops 8 on mobile and horizontal calibration pedestal 1 in through slot 4 respectively, make the side wall of each sizing stop 8 with
Corresponding benchmark checking scale 7 is bonded；
III, the first calibration bolt 11 of adjustment screws in the length in corresponding calibration nut 12, the first school with the second calibration bolt 14
The lower end level of compression elasticity of quasi- bolt 11 and the second calibration bolt 14 calibrates pallet assembly 3, and then adjusts horizontal resiliency school
The distance between quasi- pallet assembly 3 and 4 bottom surface of through slot, make the horizontal bar for the cross scratch 10 being arranged on 8 side wall of sizing stop
Trace and the upper edge of corresponding benchmark checking scale 7 are concordant；
IV, adjustment third calibration bolt 16 screws in the length in corresponding calibration nut 12, and third calibration bolt 16 passes through calibration
Bracket 8 compresses vertical elasticity calibration pallet assembly 19, and then adjusts vertical elasticity calibration pallet assembly 19 and vertical calibration pedestal 2
The distance between, make the vertical scratch for the cross scratch 10 being arranged on 8 side wall of sizing stop and corresponding benchmark checking scale 7
Identical graduation line aligns；
V, two equal diameter bars are successively penetrated in the through-hole 9 being arranged on sizing stop 8, is can be realized at two calibration stations
Two equal diameter bar concentricity calibrations.
Embodiment two
In the present embodiment two, horizontal resiliency calibrates six roots of sensation spring and horizontal alignment pedestal 1 under the level tray of pallet assembly 3
The bottom plate of through slot 4 is connected to one by riveting, and similarly, vertical elasticity calibration pallet assembly 19 is riveted on often respectively
In the front surface of the corresponding interior side calibration ear mount 20 in one 5 lower section of benchmark checking scale guide hole, the structure of remaining present apparatus and position
The calibration process for setting relationship, preparation and installation process and equal diameter bar concentricity is the same as example 1.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
It is familiar with those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (2)
1. a kind of application method of the coaxial calibrating installation of equal diameter bar, it is characterised in that the following steps are included:
I, adjustment benchmark checking scale (7) screws in the length in benchmark checking scale fastening nut (6), makes the zero of benchmark checking scale (7)
Graduation mark is aligned with the trailing flank of vertical calibration pedestal (2)；
II, mobile and horizontal calibrates several sizing stops (8) on pedestal (1) in through slot (4) respectively, makes each sizing stop (8)
Side wall be bonded with corresponding benchmark checking scale (7)；
III, the length in adjustment the first calibration bolt (11) calibration nut (12) corresponding with the second calibration bolt (14) screw-in,
The lower end level of compression elasticity of first calibration bolt (11) and the second calibration bolt (14) calibrates pallet assembly (3), and then adjusts
Whole horizontal resiliency calibrates the distance between pallet assembly (3) and through slot (4) bottom surface, makes be arranged on sizing stop (8) side wall ten
The horizontal scratch of font scratch (10) and the upper edge of corresponding benchmark checking scale (7) are concordant；
IV, adjustment third calibration bolt (16) screws in the length in corresponding calibration nut (12), and third calibration bolt (16) is logical
Cross sizing stop (8) and compress vertical elasticity calibration pallet assembly (19), so adjust vertical elasticity calibration pallet assembly (19) with
The distance between vertical calibration pedestal (2), make the vertical scratch for the cross scratch (10) being arranged on sizing stop (8) side wall with
The identical graduation line of corresponding benchmark checking scale (7) aligns；
V, several equal diameter bars are successively penetrated in the through-hole (9) being arranged on sizing stop (8), adjacent calibration work can be realized
Equal diameter bar concentricity calibration at position.
2. a kind of application method of coaxial calibrating installation of equal diameter bar according to claim 1, it is characterised in that: described
In step V, the quantity for calibrating station is identical as the quantity of equal diameter bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811326802.6A CN109539954B (en) | 2018-11-08 | 2018-11-08 | Application method of coaxial calibrating device for equal-diameter rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811326802.6A CN109539954B (en) | 2018-11-08 | 2018-11-08 | Application method of coaxial calibrating device for equal-diameter rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109539954A true CN109539954A (en) | 2019-03-29 |
| CN109539954B CN109539954B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811326802.6A Expired - Fee Related CN109539954B (en) | 2018-11-08 | 2018-11-08 | Application method of coaxial calibrating device for equal-diameter rod |
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|---|---|
| CN (1) | CN109539954B (en) |
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| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
| CN206258063U (en) * | 2016-12-26 | 2017-06-16 | 重庆越发机械制造有限公司 | New hind axle Linearity surveying frock |
| CN107036512A (en) * | 2017-05-19 | 2017-08-11 | 国网天津市电力公司 | A kind of computational methods of shaft coupling alignment |
| CN206959766U (en) * | 2016-12-13 | 2018-02-02 | 上海申和热磁电子有限公司 | A kind of anode tube is to heart detection means |
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2018
- 2018-11-08 CN CN201811326802.6A patent/CN109539954B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813131A (en) * | 1995-10-02 | 1998-09-29 | Werre; John D. | Telescope mounting alignment bars |
| CN202382696U (en) * | 2011-12-26 | 2012-08-15 | 山东丰汇设备技术有限公司 | Pipe straightness detection device |
| CN103292676A (en) * | 2013-05-31 | 2013-09-11 | 中国航空动力机械研究所 | Coaxiality adjusting device and coaxiality adjusting method |
| CN204381809U (en) * | 2014-12-31 | 2015-06-10 | 大港油田集团有限责任公司 | A kind of flow process aligning device |
| CN205228362U (en) * | 2015-12-15 | 2016-05-11 | 德阳东汽电站机械制造有限公司 | Condenser tube baffle tube bank hole axiality alignment frock |
| CN206959766U (en) * | 2016-12-13 | 2018-02-02 | 上海申和热磁电子有限公司 | A kind of anode tube is to heart detection means |
| CN206258063U (en) * | 2016-12-26 | 2017-06-16 | 重庆越发机械制造有限公司 | New hind axle Linearity surveying frock |
| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
| CN107036512A (en) * | 2017-05-19 | 2017-08-11 | 国网天津市电力公司 | A kind of computational methods of shaft coupling alignment |
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| Publication number | Publication date |
|---|---|
| CN109539954B (en) | 2020-07-28 |
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