CN109900189A - A kind of hub inner lumen diameter measuring device - Google Patents
A kind of hub inner lumen diameter measuring device Download PDFInfo
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- CN109900189A CN109900189A CN201910322593.6A CN201910322593A CN109900189A CN 109900189 A CN109900189 A CN 109900189A CN 201910322593 A CN201910322593 A CN 201910322593A CN 109900189 A CN109900189 A CN 109900189A
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- 239000000463 material Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 24
- 208000020442 loss of weight Diseases 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000002230 centromere Anatomy 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
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Abstract
The invention belongs to measuring appliance technical fields, more particularly to a kind of hub inner lumen diameter measuring device, including left walk scale, right walk scale, measurer main body, positioning element, secure component, positioning element is for being inserted into wheel center hole centre of location position, right walk scale or left walk scale are inserted into following ruler slot or slide in the ruler slot of top, the left end of the right end of right walk scale and left walk scale contacts internal chamber wall respectively, secure component is in reading by left walk scale, right walk scale is fixed, avoid left walk scale, right walk scale position is mobile, influence measurement accuracy and accuracy, the measuring device can realize the measurement of the internal diameter of the wheel hub of the band cavity of falling draft loss of weight nest, and measurement is accurate, accuracy is high, convenient for operation, it is versatile, it is able to achieve the irregular knot of the irrealizable measurement of traditional measurement tool The function of structure inner cavity.
Description
Technical field
This application involves measuring appliance technical fields, and in particular to a kind of hub inner lumen diameter measuring device.
Background technique
Hub inner lumen diameter is an important parameter of automotive wheel, and existing automotive wheel is for noise reduction and mitigates weight
Amount usually excessively locate the formation cavity of falling draft loss of weight nest as shown in figure 1 at A, B point, due to D size in wheel hub spoke back chamber and wheel rim
Greater than D1 size, and loss of weight nest is very deep in the position of spoke back chamber, by wheel flange interference effect, so with general
Cubing have no idea to measure this wheel position diameter D size, subtract so needing to design one kind and can measure the band cavity of falling draft
The measuring tool of the internal diameter of the wheel hub of weight nest.
Summary of the invention
The embodiment of the present application provides a kind of hub inner lumen diameter measuring device, it can be achieved that the band cavity of falling draft loss of weight nest
The measurement of the internal diameter of wheel hub, and convenient for operation, versatile, measurement is accurate, and accuracy is high, and being able to achieve traditional measurement tool cannot
The function of the measurement irregular structure inner cavity of realization.
In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
In a first aspect, provide a kind of hub inner lumen diameter measuring device, including left walk scale, right walk scale, measurer main body,
Positioning element, secure component, left contact, right contact offer in measurer main body parallel corresponding through measurer main body up and down
Top ruler slot and following ruler slot, offer in the middle part of the ruler slot of top one section it is upper read window, the middle part of following ruler slot also offers
Window is read under one section, offers high scale along the upper edge of upper reading window in measurer main body, the edge in measurer main body
The upper edge of lower reading window offer lower scale；The graduation mark position of high scale and lower scale corresponds, and one is a pair of
Two graduation marks up and down answered are on a vertical line or the indexing of high scale and lower scale is identical with overall length, and high scale
With above and below the position of 0 graduation mark of lower scale it is corresponding on a vertical line；Left walk scale and right walk scale all have
The left end of horizontal component and vertical portion, the horizontal component of left walk scale has vertical portion, the horizontal part of right walk scale
The right end divided has vertical portion, is fixedly connected with left contact in the lower end of the vertical portion of left walk scale, left contact has
Horizontal component to the left is fixedly connected with right contact in the lower end of the vertical portion of right walk scale, and right contact has to the right
The horizontal component of horizontal component, left contact and right contact is crossed in the radial alignment of wheel center at one；The water of left walk scale
The upper edge of flat part is provided with left vernier graduation, and left vernier graduation is the one section of section scale value and scale for not including 0 scale
The scale value of line, left vernier graduation from left to right increases, and 0 scale is located at the left end of left contact；The horizontal part of right walk scale
The upper edge divided is provided with right vernier graduation, and right vernier graduation is the one section of section scale value and graduation mark for not including 0 scale, right
The scale value of vernier graduation increases from right to left, and 0 scale is located at the right end of right contact；Left vernier graduation and right vernier graduation
Scale division value is identical；0 graduation mark of high scale is in rightmost, and for 0 graduation mark of lower scale in Far Left, right walk scale is inserted into top
It is slided in ruler slot, left walk scale, which is inserted into following ruler slot, to be slided or 0 graduation mark of high scale is in Far Left, lower scale
0 graduation mark in rightmost, right walk scale is inserted into following ruler slot and slides, and slides in left walk scale insertion top ruler slot；
Secure component is arranged in measurer main body, for left walk scale, right walk scale to be separately fixed at following ruler in reading
In slot, top ruler slot, or for left walk scale, right walk scale to be separately fixed at top ruler slot, following in reading
In ruler slot；Positioning element is detachably mounted to measurer lower body, plays positioning action for being inserted into wheel center hole.
In some embodiments, the secure component is fastening screw, the left and right ends of ruler slot and following ruler slot in top
One threaded hole of each setting is distinguished in corresponding measurer main body, fastening screw is mounted in threaded hole, by tightening fastening screw
Left walk scale or right walk scale are fixed in the top ruler slot or following ruler slot of measurer main body.
In some embodiments, the positioning element is alignment pin, and measurer lower body is provided with mounting hole, is positioned
The upper end of pin shaft is mounted in the mounting hole of measurer lower body by interference fit.
In some embodiments, it is further fixedly arranged on measurer handle in measurer main body upper end, measurer handle is heat-barrier material.
In some embodiments, the end of the left contact and the right contact is tip, and material is steel alloy.
In some embodiments, it is characterised in that: the scale division value of the left vernier graduation and the right vernier graduation is
1mm；The high scale and the lower scale be the overall length of 10 indexing be 9mm scale, 20 indexing overall lengths be 19mm quarter
The overall length for spending or be 50 indexing is the scale of 49mm.
Compared with prior art, the invention has the benefit that
The present invention provides a kind of hub inner lumen diameter measuring device, including left walk scale, right walk scale, measurer main body,
Positioning element, secure component, positioning element is for being inserted into wheel center hole centre of location position, right walk scale or left travelling
Scale is inserted into following ruler slot or slides in the ruler slot of top, the left end point of the right end of right walk scale and left walk scale
Not Jie Chu internal chamber wall, secure component fixes left walk scale, right walk scale in reading, avoids left walk scale, right trip
Dynamic position of rule is mobile, influences measurement accuracy and accuracy, which can realize the wheel hub of the band cavity of falling draft loss of weight nest
Internal diameter measurement, and measure that accurate, accuracy is high, convenient for operation, versatile, being able to achieve traditional measurement tool can not achieve
Measurement irregular structure inner cavity function.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present application, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of hub inner lumen schematic cross-section of the band cavity of falling draft loss of weight nest.
Fig. 2 is a kind of structural schematic diagram of hub inner lumen diameter measuring device of the present invention.
Fig. 3 is schematic diagram when a kind of hub inner lumen diameter measuring device of the present invention measures.
Fig. 4 is the mounting structure signal of a kind of hub inner lumen diameter measuring device measurer main body of the present invention and alignment pin
Figure.
Fig. 5 is a kind of hub inner lumen diameter measuring device graduation mark schematic diagram in the embodiment of the present invention 3.
Wherein, the left walk scale of 1-, the right walk scale of 2-, 3- measurer main body, 4- alignment pin, 5- fastening screw, 6- amount
Have handle, the left contact of 7-, the right contact of 8-.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is some embodiments of the present application, instead of all the embodiments.Based on this Shen
Please in embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall in the protection scope of this application.
The description and claims of this application and term " first ", " second ", " third " and " in the attached drawing
Four " etc. are not use to describe a particular order for distinguishing different objects.In addition, term " includes " and " having " and it
Any deformation, it is intended that cover and non-exclusive include.Such as it contains the process, method of a series of steps or units, be
System, product or equipment are not limited to listed step or unit, but optionally further comprising the step of not listing or list
Member, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Embodiment 1:
1-4 illustrates the embodiment of the present invention 1 with reference to the accompanying drawings of the specification:
A kind of hub inner lumen diameter measuring device according to Fig.2, including left walk scale 1, right walk scale 2, measurer master
Body 3, positioning element, secure component, measurer handle 6, left contact 7, right contact 8.It is parallel right up and down to offer in measurer main body 3
The top ruler slot and following ruler slot through measurer main body answered, offer in the middle part of the ruler slot of top one section it is upper read window, below
The middle part of ruler slot also offers and reads window under one section, offers in measurer main body 3 along the upper edge of upper reading window
Scale offers lower scale along the upper edge of lower reading window in measurer main body 3；The indexing of high scale and lower scale and total
Length is identical, and it is the scale of 9mm that the high scale and the lower scale, which are the overall length of 10 indexing, and the 0 of high scale and lower scale
Above and below the position of graduation mark it is corresponding on a vertical line.It is portable for convenience and be put into hub for vehicle wheel and measure, in measurer
3 upper end of main body is further fixedly arranged on measurer handle 6, and cubing hand handle 6 is connect with measurer main body 3 by fastening screw, measurer handle 6
For heat-barrier material, the wheel that heat-barrier material can make the measuring device adapt to certain temperature is measured.
Left walk scale 1 and right walk scale 2 all have horizontal component and vertical portion, the horizontal part of left walk scale 1
The left end divided has vertical portion, and the right end of the horizontal component of right walk scale 2 has vertical portion, in left walk scale 1
The lower end of vertical portion is fixedly connected with left contact 7, and left contact 7 fixes as one with left walk scale 1, left contact 7 have to
Left horizontal component is fixedly connected with right contact 8 in the lower end of the vertical portion of right walk scale 2, and right contact 8 is marked with right travelling
Ruler 2 fixes as one, and right contact 8 has a horizontal component to the right, and the horizontal component of left contact 7 and right contact 8 crosses vehicle at one
In the radial alignment at wheel center.The end of the left contact 7 and the right contact 8 is tip, and material is steel alloy.Left travelling mark
The upper edge of the horizontal component of ruler 1 is provided with left vernier graduation, and left vernier graduation is one section of section scale value for not including 0 scale
And graduation mark, the scale value of left vernier graduation from left to right increase, 0 scale is located at the left end of left contact；Right walk scale 2
The upper edge of horizontal component is provided with right vernier graduation, and right vernier graduation is one section of section scale value and the quarter for not including 0 scale
Line is spent, the scale value of right vernier graduation increases from right to left, and 0 scale is located at the right end of right contact；Left vernier graduation and right trip
The scale division value of indexing is identical, and the scale division value of the left vernier graduation and the right vernier graduation is 1mm.0 quarter of high scale
Line is spent in rightmost, and 0 graduation mark of lower scale is in Far Left, and right walk scale 2 is inserted into top ruler slot and slides, left walk scale
It is slided in the 1 following ruler slot of insertion.
Secure component is arranged in measurer main body, and the secure component is fastening screw 5 in the present embodiment, in top ruler
One threaded hole of each setting is distinguished in the corresponding measurer main body 3 in the left and right ends of slot and following ruler slot, the both ends of top ruler slot have
Two threaded holes, there are two threaded holes at the both ends of following ruler slot, and fastening screw 5 is mounted in threaded hole, by tightening fastening spiral shell
Left walk scale 1 and right walk scale 2 are compressed in the threaded hole that nail 5 enters in measurer main body 3, by left walk scale 1, right travelling
Scale 2 is separately fixed at the following ruler slot of measurer main body, in the ruler slot of top, prevents right walk scale 2, left walk scale 1 from measuring
Have the top ruler slot of main body 3, slide in following ruler slot, influences measurement accuracy and accuracy.
Positioning element is detachably mounted to measurer lower body, plays positioning action for being inserted into wheel center hole.
The positioning element is alignment pin 4 in the present embodiment, and measurer lower body is provided with mounting hole, alignment pin 4 it is upper
End is mounted in the mounting hole of 3 lower end of measurer main body by interference fit.As shown in figure 4, alignment pin 4 is inserted into measurer main body 3
Positioning action is played in the mounting hole of lower section, it is tight fit that alignment pin 4, which is inserted into 3 lower section mounting hole of measurer main body, guarantees positioning accurate
Degree.And different-diameter alignment pin 4 can be replaced, realizes that a gage measuring is a variety of according to different wheel center-hole diameter
The requirement of the hub for vehicle wheel of size.
The measurement process of vernier caliper in the present embodiment are as follows:
The measurement accuracy of the hub inner lumen diameter measuring device is 0.1mm, and the alignment pin 4 for adapting to different wheel centre bore is inserted
Enter in 3 lower section mounting hole of measurer main body, then alignment pin 4 is inserted into wheel center hole and plays positioning action.It then, will be
Right walk scale 2, left walk scale 1 are shunk to centromere diameter to becoming smaller in 3 top ruler slot of measurer main body, following ruler slot, hand
Cubing hand handle 6 is hold, this wheel hub intracavity diameter measuring device is put into wheel as shown in figure 3, will be in 3 top ruler of measurer main body
Right walk scale 2, left walk scale 1 are extended radially out to centromere circle in slot, following ruler slot, and left contact 7 and right contact 8 touch respectively
And wheel spoke back chamber and wheel rim excessively locates to be formed at the cavity of falling draft wheel measurement wheel internal diameter D ruler at A, B point as shown in figure 1
It is very little.Then tightening fastening screw 5 prevents right walk scale 2, left walk scale 1 in 3 top ruler slot of measurer main body, following ruler slot
Sliding influences measurement accuracy and accuracy.Wheel internal diameter D by measurer main body 3 and right walk scale 2, left travelling having a size of being marked
The sum of 1 number of division of ruler reading.
The number reading method of left walk scale 1 are as follows: 0 graduation mark of the high scale being subject in measurer main body 3 first is read left
Near the numerical value of one graduation mark in the left side of 0 graduation mark of high scale on walk scale 1, with left walk scale 1
Millimeter integer M；Then observe which graduation mark on the high scale in measurer main body 3 is aligned with the graduation mark of blade, is taken and is most connect
The line being closely aligned is read on high scale closest to the lattice number N of the line of alignment；The most reading of rear left walk scale 1=left walk scale
Millimeter integer M+ lattice number N × measurement accuracy 0.1mm with 1.Similarly, the number reading method of right walk scale 1 is similar, can also obtain
Right walk scale 2 is read out.Finally, the wheel internal diameter D=reading of right walk scale 2+left walk scale 1 is read, to measure this
Hub inner lumen diameter.
In some other embodiment, the high scale and the lower scale can also be that the overall length of 20 indexing is 19mm
Scale or be 50 indexing overall length be 49mm scale.The corresponding measurement accuracy of above-mentioned scale be respectively 0.05mm and
0.02mm。
Embodiment 2:
It is different from the embodiment 1 the difference is that upper and lower position of left walk scale and right walk scale in embodiment 2.Tool
In example 2,0 graduation mark of high scale is in Far Left, and 0 graduation mark of lower scale in rightmost, insert by right walk scale for body
Enter and slided in following ruler slot, is slided in left walk scale insertion top ruler slot；Secure component is arranged in measurer main body, is used for
Left walk scale, right walk scale are separately fixed at top ruler slot, in following ruler slot when reading.It is only a left side in embodiment 2
The upper and lower position of walk scale and right walk scale is different, remaining part and its connection structure and number reading method with embodiment 1
In
Implement: 3:
In embodiment 3 from embodiment 1 the difference is that: the correspondence setting of high scale and lower scale is different, thus
The algorithm of wheel internal diameter D has differences.In embodiment 3, as shown in figure 5, the quarter of high scale and lower scale in measurer main body 3
It spends line position to correspond, and one-to-one two graduation marks up and down are on a vertical line；In this way, left 1 He of walk scale
The number reading method of right walk scale 2 is in the same manner as in Example 1, but the wheel internal diameter D=reading of right walk scale 2+left walk scale
The length of 1 reading+high scale or lower scale, to measure the hub inner lumen diameter.The connection of remaining part and its component
Relationship is identical as in embodiment 1.
As it can be seen that the present invention provides a kind of hub inner lumen diameter measuring device, including left walk scale, right walk scale,
Measurer main body, positioning element, secure component, positioning element is for being inserted into wheel center hole centre of location position, right walk scale
Either left walk scale is inserted into following ruler slot or slides in the ruler slot of top, the right end of right walk scale and left walk scale
Left end contact internal chamber wall respectively, secure component fixes left walk scale, right walk scale in reading, avoids left travelling
Scale, right walk scale position are mobile, influence measurement accuracy and accuracy, which can realize the band cavity of falling draft loss of weight
The measurement of the internal diameter of the wheel hub of nest, and measurement is accurate, accuracy is high, is convenient for operation, is versatile, is able to achieve traditional measurement tool
The irrealizable function of measuring irregular structure inner cavity.
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application
There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (6)
1. a kind of hub inner lumen diameter measuring device, including it is left walk scale, right walk scale, measurer main body, positioning element, tight
Gu component, left contact, right contact, it is characterised in that:
Parallel corresponding top ruler slot and following ruler slot through measurer main body up and down is offered in measurer main body, top ruler slot
Middle part offers one section of upper reading window, and the middle part of following ruler slot also offers and reads window under one section, the edge in measurer main body
The upper edge of upper reading window offer high scale, offer lower quarter along the upper edge of lower reading window in measurer main body
Degree；The graduation mark position of high scale and lower scale corresponds, and one-to-one two graduation marks up and down are in a vertical line
On or high scale and lower scale indexing it is identical with overall length, and the position of 0 graduation mark of high scale and lower scale is corresponding up and down
On a vertical line；
Left walk scale and right walk scale all have horizontal component and vertical portion, the left end of the horizontal component of left walk scale
With vertical portion, the right end of the horizontal component of right walk scale has vertical portion, in the vertical portion of left walk scale
Lower end is fixedly connected with left contact, and left contact has horizontal component to the left, solid in the lower end of the vertical portion of right walk scale
Surely it is connected with right contact, right contact has a horizontal component to the right, and the horizontal component of left contact and right contact crosses wheel at one
In the radial alignment at center；
The upper edge of the horizontal component of left walk scale is provided with left vernier graduation, left vernier graduation be do not include the one of 0 scale
Section section scale value and graduation mark, the scale value of left vernier graduation from left to right increase, and 0 scale is located at the left end of left contact；
The upper edge of the horizontal component of right walk scale is provided with right vernier graduation, and right vernier graduation is one section of area for not including 0 scale
Between scale value and graduation mark, the scale value of right vernier graduation increases from right to left, and 0 scale is located at the right end of right contact；Zuo You
Indexing is identical with the scale division value of right vernier graduation；
0 graduation mark of high scale is in rightmost, and 0 graduation mark of lower scale is in Far Left, right walk scale insertion top ruler slot
It slides, is slided in the following ruler slot of left walk scale insertion or 0 graduation mark of high scale is in Far Left, 0 scale of lower scale
Line is inserted into following ruler slot and slides in rightmost, right walk scale, slides in left walk scale insertion top ruler slot；
Secure component is arranged in measurer main body, under being separately fixed at left walk scale, right walk scale in reading
In side ruler slot, top ruler slot, or for reading when by left walk scale, right walk scale be separately fixed at top ruler slot,
In following ruler slot；
Positioning element is detachably mounted to measurer lower body, plays positioning action for being inserted into wheel center hole.
2. a kind of hub inner lumen diameter measuring device according to claim 1, it is characterised in that: the secure component is
Fastening screw distinguishes one threaded hole of each setting in the corresponding measurer main body in the left and right ends of top ruler slot and following ruler slot,
Fastening screw is mounted in threaded hole, and left walk scale or right walk scale are fixed on measurer master by tightening fastening screw
In the top ruler slot or following ruler slot of body.
3. a kind of hub inner lumen diameter measuring device according to claim 1, it is characterised in that: the positioning element is
Alignment pin is provided with mounting hole in measurer lower body, and the upper end of alignment pin is mounted on measurer main body by interference fit
In the mounting hole of lower end.
4. a kind of hub inner lumen diameter measuring device according to claim 1, it is characterised in that: in measurer main body upper end
It is further fixedly arranged on measurer handle, measurer handle is heat-barrier material.
5. a kind of hub inner lumen diameter measuring device according to claim 1, it is characterised in that: the left contact and institute
The end for stating right contact is tip, and material is steel alloy.
6. a kind of hub inner lumen diameter measuring device described in any one of -5 according to claim 1, it is characterised in that: described
The scale division value of left vernier graduation and the right vernier graduation is 1mm；The high scale and the lower scale are the total of 10 indexing
The scale of a length of 9mm, 20 indexing overall lengths be 19mm scale or be 50 indexing overall length be 49mm scale.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322593.6A CN109900189B (en) | 2019-04-22 | 2019-04-22 | Hub inner cavity diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322593.6A CN109900189B (en) | 2019-04-22 | 2019-04-22 | Hub inner cavity diameter measuring device |
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| CN109900189A true CN109900189A (en) | 2019-06-18 |
| CN109900189B CN109900189B (en) | 2024-02-13 |
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| CN201910322593.6A Active CN109900189B (en) | 2019-04-22 | 2019-04-22 | Hub inner cavity diameter measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186353A (en) * | 2019-07-08 | 2019-08-30 | 马鞍山钢铁股份有限公司 | Train wheel radial dimension measurer and train wheel radial dimension measurement method |
| CN110926313A (en) * | 2020-01-01 | 2020-03-27 | 内蒙古航天红岗机械有限公司 | Measuring tool for measuring inner cone angle |
| CN112729061A (en) * | 2020-12-28 | 2021-04-30 | 黎锦 | Device for detecting inner diameter and tire ring of automobile hub |
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| CN110186353A (en) * | 2019-07-08 | 2019-08-30 | 马鞍山钢铁股份有限公司 | Train wheel radial dimension measurer and train wheel radial dimension measurement method |
| CN110186353B (en) * | 2019-07-08 | 2024-03-05 | 马鞍山钢铁股份有限公司 | Train wheel radial size measuring tool and train wheel radial size measurement method |
| CN110926313A (en) * | 2020-01-01 | 2020-03-27 | 内蒙古航天红岗机械有限公司 | Measuring tool for measuring inner cone angle |
| CN112729061A (en) * | 2020-12-28 | 2021-04-30 | 黎锦 | Device for detecting inner diameter and tire ring of automobile hub |
| CN112729061B (en) * | 2020-12-28 | 2022-12-30 | 浙江步阳汽轮有限公司 | Device for detecting inner diameter and tire ring of automobile hub |
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