CN203785586U - Shoulder-free axle neck length measuring device - Google Patents
Shoulder-free axle neck length measuring device Download PDFInfo
- Publication number
- CN203785586U CN203785586U CN201420139977.7U CN201420139977U CN203785586U CN 203785586 U CN203785586 U CN 203785586U CN 201420139977 U CN201420139977 U CN 201420139977U CN 203785586 U CN203785586 U CN 203785586U
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- CN
- China
- Prior art keywords
- axle
- ruler
- positioning
- shoulder
- chute
- 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.)
- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a shoulder-free axle neck length measuring device comprising a main ruler and an auxiliary ruler. The shoulder-free axle neck length measuring device is characterized in that the main ruler is linear, the auxiliary ruler is in an L shape composed of a straight rod section and a scale section, the scale section of the auxiliary ruler is provided with a chute in parallel with the straight rod section, the main ruler is nested in the chute of the auxiliary ruler and is sliding fit with the chute, and the tail end of the straight rod section of the main ruler is equipped with an arc positioning block. The shoulder-free axle neck length measuring device has the following advantages: positioning is performed by an axle neck unloading arc and an axle end face, one measuring and positioning benchmark is for positioning of the arc positioning block and the axle unloading arc, adjustment and replacement are carried out according to the sizes of axle unloading arcs of different types, the accuracy of positioning is high, the other measuring and positioning benchmark is for positioning of the main measuring ruler and the axle end face, the main ruler and the axle end are mutually positioned by moving the main ruler, and the length value of a measured component is read out. The shoulder-free axle neck length measuring device is simple in structure and highly versatile, and meets the requirement of length measurement on different types of shoulder-free axle necks.
Description
Technical field
The utility model relates to a kind of measurement mechanism of lorry axle axle journal length dimension, and specifically a kind of axletree, without shaft shoulder axle journal length-measuring appliance, belongs to measurement mechanism field.
Background technology
Axletree is as the critical component of railway product, and follow-up assembly quality, especially the axle journal measurement of length precision with bearing of its processing precision direct influence, directly affects the dimensional measurement whether bearing is seated.
Adopt general pit gauge to measure without shaft shoulder axle journal length at present, metering system is secondary chi and axle end face location, main scale contacts location with axle journal with dustproof intersection place, read measurement numerical value, because axle journal and dustproof intersection place structure are linear formula, non-structure, causes main scale to contact location with dustproof intersection place with axle journal inaccurate, causes measuring error large.
summary of the invention
The purpose of this utility model be for different types without shaft shoulder axle journal measurement of length, provide a kind of accuracy of detection high, the axletree of convenient operation is without shaft shoulder axle journal length-measuring appliance.
The technical scheme that the utility model adopts is as follows:
The utility model comprises main scale, secondary chi, it is characterized in that: main scale is linear, it is L shaped that secondary chi is made up of straight bar section and scale section, scale section at secondary chi is provided with the chute parallel with straight bar section, main scale is nested in the chute of secondary chi, be slidably matched with chute, the straight bar section tail end of main scale is provided with location circular arc piece.
Between described location circular arc piece and secondary chi for being flexibly connected;
Described location circular arc piece and secondary chi adopt little clearance fit, and register pin shaft type screw fastening, to realize the commutativity of location circular arc piece;
In the chute of described secondary chi, be provided with copper packing, to avoid the wearing and tearing that between major and minor chi, long-term relative sliding causes;
Between described major and minor chi, located by lock-screw.
The utility model has the advantages that: adopt axle journal off-load circular arc and axle end face location, a measurement and positioning benchmark is location circular arc piece and axletree off-load circular arc location, adjust replacing according to the size of dissimilar axletree off-load circular arc, the accuracy of location is high, another measurement and positioning benchmark is for measuring main scale and axle end face location, realize and the mutual positioning relation of axle head by mobile main scale, and read the length value of tested part; The utility model is simple in structure, highly versatile, has met different types and has measured without shaft shoulder axle journal length dimension.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is longitudinal sectional view of the present utility model;
Fig. 3 is instrumentation plan of the present utility model.
Embodiment
With reference to accompanying drawing 1,2, the utility model comprises main scale 2, secondary chi 1, main scale is linear, it is L shaped that secondary chi is made up of straight bar section blade and scale section measuring junction, is provided with the chute parallel with straight bar section in the scale section of secondary chi, and main scale is nested in the chute of secondary chi, be slidably matched with chute, the two longitudinal two side clearance is equipped with copper packing 3, with the wearing and tearing of avoiding between major and minor chi long-term relative sliding to cause, after sliding between major and minor chi by lock-screw 4 positioning and lockings; The straight bar section tail end of main scale is provided with location circular arc piece 6, and location circular arc piece and secondary chi adopt little clearance fit, compresses with register pin shaft type screw 5.
Specific implementation process is with reference to accompanying drawing 3, the utility model forms positioning relation mutually by straight bar section blade and the location circular arc piece tested part 7 off-load circular arcs of secondary chi, slide by main scale, realize and the end contact of tested part, read the measurement size of tested part by major and minor chi scale mark position relationship.
The utility model measurement device precision is 0.02mm, measures length range 200mm to 280mm.
Claims (5)
1. an axletree is without shaft shoulder axle journal length-measuring appliance, comprise main scale, secondary chi, it is characterized in that: main scale is linear, it is L shaped that secondary chi is made up of straight bar section and scale section, scale section at secondary chi is provided with the chute parallel with straight bar section, main scale is nested in the chute of secondary chi, is slidably matched with chute, and the straight bar section tail end of main scale is provided with location circular arc piece.
2. axletree according to claim 1, without shaft shoulder axle journal length-measuring appliance, is characterized in that: between described location circular arc piece and secondary chi for being flexibly connected.
3. axletree according to claim 2, without shaft shoulder axle journal length-measuring appliance, is characterized in that: described location circular arc piece and secondary chi adopt register pin shaft type screw fastening.
4. axletree according to claim 1, without shaft shoulder axle journal length-measuring appliance, is characterized in that: in the chute of described secondary chi, be provided with copper packing.
5. axletree according to claim 1, without shaft shoulder axle journal length-measuring appliance, is characterized in that: between described major and minor chi, located by lock-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139977.7U CN203785586U (en) | 2014-03-26 | 2014-03-26 | Shoulder-free axle neck length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139977.7U CN203785586U (en) | 2014-03-26 | 2014-03-26 | Shoulder-free axle neck length measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785586U true CN203785586U (en) | 2014-08-20 |
Family
ID=51321764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139977.7U Expired - Fee Related CN203785586U (en) | 2014-03-26 | 2014-03-26 | Shoulder-free axle neck length measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785586U (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
- 2014-03-26 CN CN201420139977.7U patent/CN203785586U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |