CN204269031U - A kind of axle head axle journal linear measure longimetry reference block - Google Patents
A kind of axle head axle journal linear measure longimetry reference block Download PDFInfo
- Publication number
- CN204269031U CN204269031U CN201420770897.1U CN201420770897U CN204269031U CN 204269031 U CN204269031 U CN 204269031U CN 201420770897 U CN201420770897 U CN 201420770897U CN 204269031 U CN204269031 U CN 204269031U
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- China
- Prior art keywords
- fan
- circular arc
- shaped circular
- arc block
- locating piece
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of axle head axle journal linear measure longimetry reference block, comprise fan-shaped circular arc block, locating piece, screw, with screw, locating piece being fixed on fan-shaped circular arc block inner arc has on the end face of rounding, the internal and external cambered surface of fan-shaped circular arc block is all perpendicular to locating piece, fan-shaped circular arc block inner arc radius equals the radius of measured axis end-journal, fan-shaped circular arc block inner arc rounding radii equals tested axle journal off-load radius of corner, and fan-shaped circular arc block length is 3/4ths of measured axis neck length degree.During measurement, the intrados of fan-shaped circular arc block and rounding are close to cylindrical and the off-load fillet of axle head axle journal, then measure the distance of axle head end face to locating piece with digital display pit gauge.This accessory manufacture craft is easy, and measure cost low, measuring accuracy reaches technique needs.
Description
Technical field
The utility model belongs to measuring appliance design field, is specifically related to a kind of reference block for measuring axle head axle journal length.
Background technology
Axle head axle journal is generally used for running in bearings, the assembly quality of its processing precision direct influence bearing, measures axle journal length to judge whether the axle journal processed meets length machining precision.
At present, on-site measurement method adopts pit gauge, and the secondary chi of pit gauge and axial end are close to location, main scale and axle head axle journal off-load hollows contact with the intersection of axle head time step and locate, read and measure numerical value, locate inaccurate because main scale contacts with described intersection, cause measuring error large.Comparatively large for axle head time step, have obvious time step end face, measuring axle head axle journal length with pit gauge does not have difficulty.
There is patent " a kind of axletree is without shaft shoulder axle journal length-measuring appliance (201420139977.7) ", adopt special major-minor chi to coordinate and measure axle journal length, need to customize graduated special major-minor chi.The utility model patent proposes a kind of measuring basis block, adopts general pit gauge can measure axle head axle journal length easily by means of it.
Summary of the invention
In order to solve the problem that axle head axle journal off-load hollows and axle head time step intersection is not difficult to find and then make axle journal linear measure longimetry inaccurate, under simple and practical prerequisite, the utility model proposes a kind of axle head axle journal linear measure longimetry reference block.
The technical scheme that the utility model adopts is: a kind of axle head axle journal linear measure longimetry reference block, comprise fan-shaped circular arc block, locating piece, screw, with screw, locating piece being fixed on fan-shaped circular arc block inner arc has on the end face of rounding, the internal and external cambered surface of fan-shaped circular arc block is all perpendicular to locating piece, fan-shaped circular arc block inner arc radius equals the radius of measured axis end-journal, fan-shaped circular arc block inner arc rounding radii equals measured axis end-journal off-load radius of corner, fan-shaped circular arc block length is 3/4ths of measured axis end-journal length, is beneficial to digital display pit gauge and is pressed against.
During measurement, the intrados of fan-shaped circular arc block and rounding are close to cylindrical and the axle journal off-load fillet of axle head axle journal, now fan-shaped circular arc block have an inner arc rounding end face just on the intersection of axle head axle journal off-load hollows and axle head time step, also overlap with the surface of contact (i.e. locating surface) of fan-shaped circular arc block with locating piece, it is one of benchmark of axle head axle journal linear measure longimetry, another measuring basis is axle head end face, measures the locating surface distance of axle head end face to locating piece with digital display pit gauge.Before measurement different size axle journal, as long as according to journal size, make and change fan-shaped cambered surface block.
The invention has the beneficial effects as follows, this measuring basis block manufacture craft is easy, adopts the direct reading of universal digital display pit gauge, need not make Special measuring scale, easily and accurately can measure axle head axle journal length.
Accompanying drawing explanation
Fig. 1 is a kind of axle head axle journal linear measure longimetry reference block application schematic diagram of the present utility model
Fig. 2 is the side view of Fig. 1
In figure: 1. digital display pit gauge 2. fan-shaped circular arc block 3. locating piece 4. screw 5. axle
Embodiment
Shown in Fig. 1,2, a kind of axle head axle journal linear measure longimetry reference block, comprise fan-shaped circular arc block 2, locating piece 3, screw 4, for CRH3 railroad car axle, first fan-shaped circular arc block 2 is made, the radius that its inner arc radius equals measured axis 5 axle head axle journal is R65mm, and its length is 3/4ths of measured axis neck length degree is 160mm, and it is R8mm that its inner arc rounding radii equals axle head axle journal off-load radius of corner; With screw 4, locating piece 3 being fixed on fan-shaped circular arc block 2 inner arc has on the end face of rounding, and the internal and external cambered surface of fan-shaped circular arc block 2 is all perpendicular to locating piece 3.
During measurement, the intrados of fan-shaped circular arc block 2 and rounding are close to cylindrical and the fillet of axle head axle journal, locating piece 3 is exactly one of benchmark of axle journal linear measure longimetry with the surface of contact of fan-shaped circular arc block 2, another measuring basis is axle head end face, measures the distance of axle head end face to locating piece 3 with digital display pit gauge.
Claims (2)
1. an axle head axle journal linear measure longimetry reference block, it is characterized in that: this reference block comprises fan-shaped circular arc block (2), locating piece (3), screw (4), with screw (4), described locating piece (3) being fixed on fan-shaped circular arc block (2) inner arc has on the end face of rounding, and the internal and external cambered surface of described fan-shaped circular arc block (2) is all perpendicular to locating piece (3).
2. a kind of axle head axle journal linear measure longimetry reference block according to claim 1, it is characterized in that, described fan-shaped circular arc block (2) inner arc radius equals the radius of measured axis end-journal, fan-shaped circular arc block (2) inner arc rounding radii equals measured axis end-journal off-load radius of corner, and fan-shaped circular arc block (2) length is 3/4ths of measured axis end-journal length.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420770897.1U CN204269031U (en) | 2014-12-01 | 2014-12-01 | A kind of axle head axle journal linear measure longimetry reference block |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420770897.1U CN204269031U (en) | 2014-12-01 | 2014-12-01 | A kind of axle head axle journal linear measure longimetry reference block |
Publications (1)
Publication Number | Publication Date |
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CN204269031U true CN204269031U (en) | 2015-04-15 |
Family
ID=52803893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420770897.1U Expired - Fee Related CN204269031U (en) | 2014-12-01 | 2014-12-01 | A kind of axle head axle journal linear measure longimetry reference block |
Country Status (1)
Country | Link |
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CN (1) | CN204269031U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112284212A (en) * | 2020-10-10 | 2021-01-29 | 中车常州车辆有限公司 | Measuring method of special measuring scale for journal length |
-
2014
- 2014-12-01 CN CN201420770897.1U patent/CN204269031U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112284212A (en) * | 2020-10-10 | 2021-01-29 | 中车常州车辆有限公司 | Measuring method of special measuring scale for journal length |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP03 | Change of name, title or address |
Address after: 243000 No. 700 Huang Dong Road, Ma'anshan economic and Technological Development Zone, Anhui, China Patentee after: Magang Rail Traffic Equipment Co Ltd Address before: 243000 No. 499 Yang Hu Road, Anhui, Ma'anshan Patentee before: MA'ANSHAN MAGANG JINXI RAIL TRANSPORT EQUIPMENT CO., LTD. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20201201 |