CN204240876U - Annular seal groove measurement is special pushes away vernier caliper - Google Patents
Annular seal groove measurement is special pushes away vernier caliper Download PDFInfo
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- CN204240876U CN204240876U CN201420598207.9U CN201420598207U CN204240876U CN 204240876 U CN204240876 U CN 204240876U CN 201420598207 U CN201420598207 U CN 201420598207U CN 204240876 U CN204240876 U CN 204240876U
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- cone
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- vernier caliper
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Abstract
The utility model belongs to technical field of measuring equipment, relate to a kind of instrument for precision measurement, vernier caliper is pushed away especially for the measurement of flange annular seal groove is special, comprise, main scale, vernier scale, foot-measuring and slip gauge, it is characterized in that main scale and vernier scale make according to common calliper, make range 300mm-1000mm, degree of accuracy 0.02mm; Foot-measuring width is 36mm, and foot-measuring lower end is established to connect and changed formula weight head, and what amount head was made as drift angle 46 ° according to standard design cuts oblate cone, and cone end circular diameter is 5mm, 10.3mm or 22mm; Described slip gauge is for calibrating vernier caliper, and slip gauge is provided with 46 ° of cone tanks of two degree of depth 35mm, the centre distance 50mm of two cone tanks.The utility model special vernier caliper can directly record annular groove center circle diameter in processing uses, light and fast and degree of accuracy is high, substantially increases production efficiency while ensureing product quality.
Description
Technical field
The utility model belongs to technical field of measuring equipment, relates to a kind of instrument for precision measurement, pushes away vernier caliper especially for the special of flange annular seal groove center circle diameter measurement.
Background technology
At present, vernier caliper is used for the measurement of flange ring shape seal groove center circle diameter.Well-known loop chain junction is the conventional sealing surface pattern of High Temperature High Pressure flange, and the dimensional tolerence according to the various annular groove center circle diameters of People's Republic of China's chemical industry standard HG/T20592 ~ 20635-2009 known sealing pattern is
0.13mm, annular groove angle 46 °.Because annular groove center circle diameter is that theoretical invisible size cannot directly be measured, past all uses common calliper to measure the line of rabbet joint inside and outside annular groove then to calculate annular groove center circle diameter adding man-hour, owing to being stuck on the annular groove conical surface when common calliper is measured, accurate dimension cannot be measured, such indirect measurement method easily produces comparatively big error, causes sealing property bad.
Summary of the invention
The purpose of this utility model is to solve the problem, and a kind of annular seal groove of design measures the special vernier caliper that pushes away, and improves machining precision, ensure that product quality.
Main technical schemes of the present utility model: annular seal groove measurement is special pushes away vernier caliper, comprise, main scale, vernier scale, foot-measuring and slip gauge, it is characterized in that main scale and vernier scale make according to common calliper, make range 300mm-1000mm, degree of accuracy 0.02mm; Foot-measuring width is 36mm, and foot-measuring lower end is established to connect and changed formula weight head, and what amount head was made as drift angle 46 ° according to standard design cuts oblate cone, and cone end circular diameter is 5mm, 10.3mm or 22mm; Described slip gauge is for calibrating vernier caliper, and slip gauge is provided with 46 ° of cone tanks of two degree of depth 35mm, the centre distance 50mm of two cone tanks.
The utility model special vernier caliper can directly record annular groove center circle diameter in processing uses, light and fast and degree of accuracy is high, substantially increases production efficiency while ensureing product quality.
Accompanying drawing explanation
Fig. 1 is the special structural representation pushing away vernier caliper of the utility model embodiment.
Fig. 2 is the structural representation of slip gauge in embodiment.
In figure, 1-measures head; 2-vernier scale; 3-main scale; 4-slip gauge.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
Embodiment: annular seal groove measurement is special pushes away vernier caliper as shown in Figure 1, comprises, main scale 3, vernier scale 2, foot-measuring and slip gauge 4, its principal feature is that main scale 3 and vernier scale 2 make according to common calliper, make range 300mm-1000mm, the present embodiment is 700mm, degree of accuracy 0.02mm; Foot-measuring width is 36mm, and foot-measuring lower end is established to connect and changed formula weight head, and what amount head was made as drift angle 46 ° according to standard design cuts oblate cone, and cone end circular diameter is 5mm, 10.3mm or 22mm; Slip gauge 4 is for calibrating vernier caliper, and slip gauge 4 structure is shown in accompanying drawing 2, is provided with 46 ° of cone tanks of two degree of depth 35mm, the centre distance 50mm of two cone tanks.
When embodiment uses, the vernier caliper after calibration is vertically put into annular groove to be measured and read data, these data are exactly annular groove center circle diameter, and so just energy accurate perception annular groove centre distance size, ensures dimensional accuracy.
Claims (1)
1. annular seal groove measurement is special pushes away a vernier caliper, comprises, main scale, vernier scale, foot-measuring and slip gauge, it is characterized in that main scale and vernier scale make according to common calliper, make range 300mm-1000mm, degree of accuracy 0.02mm; Foot-measuring width is 36mm, and foot-measuring lower end is established to connect and changed formula weight head, and what amount head was made as drift angle 46 ° according to standard design cuts oblate cone, and cone end circular diameter is 5mm, 10.3mm or 22mm; Described slip gauge is for calibrating vernier caliper, and slip gauge is provided with 46 ° of cone tanks of two degree of depth 35mm, the centre distance 50mm of two cone tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598207.9U CN204240876U (en) | 2014-10-16 | 2014-10-16 | Annular seal groove measurement is special pushes away vernier caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598207.9U CN204240876U (en) | 2014-10-16 | 2014-10-16 | Annular seal groove measurement is special pushes away vernier caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204240876U true CN204240876U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420598207.9U Expired - Fee Related CN204240876U (en) | 2014-10-16 | 2014-10-16 | Annular seal groove measurement is special pushes away vernier caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204240876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063049A (en) * | 2017-06-30 | 2017-08-18 | 青岛兰石重型机械设备有限公司 | A kind of annular groove central diameter survey tool and its application method |
| CN114608406A (en) * | 2022-05-11 | 2022-06-10 | 德州联合石油科技股份有限公司 | Measurement and correction device and method for sealing groove of wellhead Christmas tree equipment |
-
2014
- 2014-10-16 CN CN201420598207.9U patent/CN204240876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063049A (en) * | 2017-06-30 | 2017-08-18 | 青岛兰石重型机械设备有限公司 | A kind of annular groove central diameter survey tool and its application method |
| CN114608406A (en) * | 2022-05-11 | 2022-06-10 | 德州联合石油科技股份有限公司 | Measurement and correction device and method for sealing groove of wellhead Christmas tree equipment |
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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: 20150401 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |