CN202250049U - Graduated ring of multi-arm caliper device - Google Patents
Graduated ring of multi-arm caliper device Download PDFInfo
- Publication number
- CN202250049U CN202250049U CN201120322717XU CN201120322717U CN202250049U CN 202250049 U CN202250049 U CN 202250049U CN 201120322717X U CN201120322717X U CN 201120322717XU CN 201120322717 U CN201120322717 U CN 201120322717U CN 202250049 U CN202250049 U CN 202250049U
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- measurement
- measurement ring
- calibration loop
- instrument contact
- measuring section
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Abstract
The utility model discloses a graduated ring of a multi-arm caliper device, which is composed of a measurement section and an instrument contact section, wherein the measurement section and the instrument contact section are integrally molded; the inner wall of the measurement section is provided with a plurality of measurement rings; the inside diameter of each of the plurality of measurement rings is gradually reduced along a direction from the measurement section to the instrument contact section; a hollow round platform is arranged between two adjacent measurement rings; and the inside diameters of the both ends of the hollow round platform are equal to the inside diameters of the measurement rings located at the two ends. The graduated ring of the multi-arm caliper device disclosed by the utility model is simple in structure, reasonable in design and good in use effect, can effectively solve the problem of the prior art that measurement cannot be accomplished by one time as the head of a measurement arm easily jumps out of the measurement ring during measurement, and prolong the service life of the graduated ring; and meanwhile, the graduated ring is high in measurement efficiency and steady in measurement progress.
Description
Technical field
The utility model relates to a kind of oil well logging industry and uses graduation apparatus, especially relates to a kind of multiple feeler caliper and uses calibration loop.
Background technology
At present, metal sleeve all is installed in oil well is used for borehole wall protection, so, metal sleeve whether burn into break, be out of shape for the ordinary production of oil well most important, so will regularly measure so that safeguard to the internal diameter of metal sleeve.Now; The instrument of measuring the metal sleeve internal diameter mainly is a multiple feeler caliper; One cover gage beam (quantity of gage beam does not wait from 4 to up to a hundred) is installed on the multiple feeler caliper, opens the back through gage beam and contact, measure the change in size of tube wall with the metal sleeve wall surface with multiple feeler caliper; Carry multiple feeler caliper then and repeat above-mentioned work again to assigned address; The size of measuring through gage beam reflects the variation of metal sleeve internal diameter, judges that the burn into of tube wall breaks and damaged condition such as distortion according to the variation of metal sleeve internal diameter, so as for from now on more casing replacing foundation is provided.
And multiple feeler caliper in process of production with all need the gage beam size of respectively stretching one's arms is carried out scale before the well logging, promptly the measured value of gage beam is demarcated through calibration loop.The scale process begins from minimum measurement ring, and after gage beam whenever measured a measurement ring value, mobile calibration loop carried out the measurement of next measurement ring value again, accomplished the scale of whole measurement ring successively.
In the process that calibration loop moves; The situation that gage beam ejects the measurement ring measured zone of needs measurement appears through regular meeting; Make the scale process occur pausing, influenced scale efficient, be embodied in: because the gage beam that calibration loop is used for multiple feeler caliper is under the state of stretching one's arms; Stretch one's arms size and its are compared demarcation in the calibration loop institute corresponding measurement ring value of contact position, therefore require each gage beam closely to contact with measured measurement ring.When mobile calibration loop made gage beam measure next measurement ring, each gage beam needed all therewith that measurement ring closely contacts.But in actual use, jump out the phenomenon that measurement ring that needs measure can't one-shot measurement thereby often occur the part gage beam when moving calibration loop, and will make gage beam all measure this measured value, can only repeat mobile calibration loop and measure.A calibration loop has 3-12 measurement ring, if such situation all appears in each measurement ring, efficiency of measurement is very low.Analyzing above-mentioned reason is: adjacent two measurement ring are at the staircase structural model (as shown in Figure 1) of intersection for no changeover portion; Mobile inertia and the elastic force effect of gage beam when work in addition; Be easy to occur gage beam head (side head) and jump out measurement ring, cause the measurement that to be well on.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art; Provide a kind of multiple feeler caliper to use calibration loop; It is simple in structure, reasonable in design and result of use is good, can effectively solve in the prior art problem that exists gage beam head when measuring to be prone to jump out measurement ring and can't in one-shot measurement, accomplish scale, and has prolonged the application life of calibration loop; Efficiency of measurement is high simultaneously, and measuring process is stable.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: a kind of multiple feeler caliper is used calibration loop; Form by measuring section and instrument contact-segment; Said measuring section and instrument contact-segment are one-body molded, and the inwall of said measuring section is provided with a plurality of measurement ring, and the internal diameter of a plurality of said measurement ring reduces along the direction of measuring section to instrument contact-segment gradually; It is characterized in that: be a hollow round table between the adjacent two said measurement ring, the internal diameter at said hollow round table two ends equates with the internal diameter of the measurement ring that is positioned at its two ends.
Above-mentioned multiple feeler caliper is used calibration loop, it is characterized in that: said instrument contact-segment outer wall is provided with fork slot, and said fork slot is positioned at the end away from measuring section.
Above-mentioned multiple feeler caliper is used calibration loop, it is characterized in that: the length L 1 of said measuring section is 120mm-140mm.
Above-mentioned multiple feeler caliper is used calibration loop, it is characterized in that: the length L 2 of said instrument contact-segment is 90mm-100mm.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design, be a hollow round table between adjacent two measurement ring of the utility model, the internal diameter at hollow round table two ends equates with the internal diameter of the measurement ring that is positioned at its two ends respectively.
2, result of use is good, and the utility model changes ramp structure into through the ledge structure that will form between adjacent two measurement ring with calibration loop at present, makes the gage beam head (material is a carbide alloy) of multiple feeler caliper through more steady.
3, can solve effectively when having scale in the prior art that the gage beam head is prone to jump out measurement ring and can't in a scale, accomplish and measure, and gage beam head impact measurement ring causes the measurement ring wear problems.
4, the utility model has prolonged the application life of calibration loop, and scale efficient is high simultaneously, scale process continous-stable.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Fig. 1 be in the prior art multiple feeler caliper with the structural representation of calibration loop.
Fig. 2 is the overall structure sketch map of the utility model.
Description of reference numerals:
The 1-measuring section; 2-instrument contact-segment; The 3-measurement ring;
The 4-hollow round table; The 5-fork slot; The 6-gage beam.
The specific embodiment
As shown in Figure 2; The utility model is made up of measuring section 1 and instrument contact-segment 2; Said measuring section 1 is one-body molded with instrument contact-segment 2, and the inwall of said measuring section 1 is provided with a plurality of measurement ring 3, and the internal diameter of a plurality of said measurement ring 3 reduces along the direction of measuring section 1 to instrument contact-segment 2 gradually; Be a hollow round table 4 between the adjacent two said measurement ring 3, the internal diameter at said hollow round table 4 two ends equates with the internal diameter of the measurement ring that is positioned at its two ends 3.
As shown in Figure 2, said instrument contact-segment (calibration loop datum hole length) 2 outer walls are provided with fork slot 5, and said fork slot 5 is positioned at the end away from measuring section 1.During use; Shift fork is inserted the drag link mechanism that also passes through headstock and shift fork in the fork slot 5; Can realize moving to calibration loop; Not only solved and moved the problem that calibration loop brings inconvenient operation through manual work in the prior art, and guaranteed the stationarity that calibration loop moves along the multiple feeler caliper outer tube.
As shown in Figure 2, the length L 1 of said measuring section 1 is 120mm-140mm, and the length L 2 of said instrument contact-segment 2 is 90mm-100mm.Because between adjacent two measurement ring 3 is a hollow round table 4; Therefore make the length of measuring section 1 increase to 120mm-140mm (the original length is about 90mm), the weight of corresponding measuring section 1 also strengthens, and the length of original instrument contact-segment 2 is about 40mm; Too short relatively; Cause and the loose contact of multiple feeler caliper outer tube, produce the inclination of calibration loop on instrument, influence the accuracy of scale value thus.For this reason, in the present embodiment, the length of instrument contact-segment 2 is increased to 90mm-100mm,, guarantee well to contact, and then guarantee the normal scale of multiple feeler caliper, improved the degree of accuracy of scale process with the instrument outer tube to reduce the inclination of calibration loop on instrument.
During use, the bottom of multiple feeler caliper is got into instrument contact-segment 2 behind measuring section 1, spur calibration loop then and make measurement ring 3 contact to measure scale with the head of the gage beam 6 of multiple feeler caliper.
The utility model will be through will change ramp structure (being that inner surface was the inclined-plane after hollow round table 4 was cut open along the longitudinal section) into the ledge structure that forms between adjacent two measurement ring 3 of calibration loop at present; Make that the gage beam head (material is a carbide alloy) of multiple feeler caliper is more steady when moving to another measurement ring that is adjacent by a measurement ring; Solved when adopting the step transition structure between adjacent two measurement ring 3 in the prior art; The head of gage beam 6 is prone to jump out measurement ring 3, cause in one-shot measurement, accomplishing, and the head impact measurement ring 3 of gage beam 6 makes measurement ring 3 wear problems; And then improved scale efficient, prolonged the application life of calibration loop.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (4)
1. a multiple feeler caliper is used calibration loop; Form by measuring section (1) and instrument contact-segment (2); Said measuring section (1) is one-body molded with instrument contact-segment (2); The inwall of said measuring section (1) is provided with a plurality of measurement ring (3); The internal diameter of a plurality of said measurement ring (3) reduces along the direction of measuring section (1) to instrument contact-segment (2) gradually, it is characterized in that: be a hollow round table (4) between the adjacent two said measurement ring (3), the internal diameter at said hollow round table (4) two ends equates with the internal diameter of the measurement ring that is positioned at its two ends (3).
2. use calibration loop according to the described multiple feeler caliper of claim 1, it is characterized in that: said instrument contact-segment (2) outer wall is provided with fork slot (5), and said fork slot (5) is positioned at the end away from measuring section (1).
3. use calibration loop according to claim 1 or 2 described multiple feeler calipers, it is characterized in that: the length (L1) of said measuring section (1) is 120mm-140mm.
4. use calibration loop according to claim 1 or 2 described multiple feeler calipers, it is characterized in that: the length (L2) of said instrument contact-segment (2) is 90mm-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120322717XU CN202250049U (en) | 2011-08-31 | 2011-08-31 | Graduated ring of multi-arm caliper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120322717XU CN202250049U (en) | 2011-08-31 | 2011-08-31 | Graduated ring of multi-arm caliper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250049U true CN202250049U (en) | 2012-05-30 |
Family
ID=46111308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120322717XU Expired - Lifetime CN202250049U (en) | 2011-08-31 | 2011-08-31 | Graduated ring of multi-arm caliper device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775063A (en) * | 2012-10-23 | 2014-05-07 | 中国石油集团长城钻探工程有限公司 | Multipoint interpolation well diameter scale device |
| CN112504077A (en) * | 2020-11-06 | 2021-03-16 | 中国海洋石油集团有限公司 | Scale device |
-
2011
- 2011-08-31 CN CN201120322717XU patent/CN202250049U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775063A (en) * | 2012-10-23 | 2014-05-07 | 中国石油集团长城钻探工程有限公司 | Multipoint interpolation well diameter scale device |
| CN112504077A (en) * | 2020-11-06 | 2021-03-16 | 中国海洋石油集团有限公司 | Scale device |
| CN112504077B (en) * | 2020-11-06 | 2022-08-02 | 中国海洋石油集团有限公司 | Scale device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |