CN204101050U - Gyro centralizer for retest of freezing hole - Google Patents
Gyro centralizer for retest of freezing hole Download PDFInfo
- Publication number
- CN204101050U CN204101050U CN201420561842.XU CN201420561842U CN204101050U CN 204101050 U CN204101050 U CN 204101050U CN 201420561842 U CN201420561842 U CN 201420561842U CN 204101050 U CN204101050 U CN 204101050U
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- Prior art keywords
- hinged
- centralizer
- gyro
- retest
- fixed
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- 230000008014 freezing Effects 0.000 title claims abstract description 44
- 238000007710 freezing Methods 0.000 title claims abstract description 44
- 238000013102 re-test Methods 0.000 title claims abstract description 8
- 238000010276 construction Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a kind of gyro centralizer for retest of freezing hole.Connecting pipe internal fixtion gyroscopic inclinometer, upper and lower adapter is fixed respectively by screw thread in the two ends up and down of connecting pipe, upper and lower capstan is fixed in upper and lower adapter respectively, the upper end of the uniform hinged upper and lower umbrella bar of difference in upper and lower capstan, the lower end of upper and lower umbrella bar is free end, the upper and lower umbrella bar of upper and lower correspondence is hinged by synchronizing bar, makes upper and lower umbrella bar can with angle folding; Empty set movable nest on described upper connecting tube, the lower end of movable nest and fulcra is hinged, and upper end and the described upper umbrella rod of fulcra are hinged, and movable nest is driven by the small oil tank be fixed in connecting pipe.
Description
Technical field
The utility model relates to a kind of centralizer of freezing hole repetition measurement gyroscopic inclinometer, is particularly suitable for using in freeze-wellboring construction.
Background technology
Freezing hole construction is the working procedure in early stage freezing Refrigeration Engineering, and the height of freezing hole construction quality directly has influence on the follow-up construction quality and the construction cost that freeze refrigeration construction.Therefore during freezing hole construction, according to code requirement every 20m-30m must deviational survey once, to ensure the pitch of holes between the verticality of freezing hole and freezing hole.Therefore, after freezing hole is all constructed, need again to measure the verticality of freezing hole in freezing pipe.Due to when frozen construction, the specification of freezing pipe is different, particularly carries out the pit shaft of partial freezing, and an one freezing apparatus just has the freezing pipe of two to three kinds of specifications.So just be difficult to the right alignment ensureing gyroscopic inclinometer and freezing pipe.The effect of centralizer is the right alignment ensureing gyro and freezing pipe in freezing pipe, ensures that gyroscopic survey numerical value can react a kind of instrument of the deflection numerical value of freezing hole really.
Partial freezing's technology mainly changes freezing pipe diameter, when upper wellbore is non-freeze section, when bottom is freeze section, the freezing pipe caliber of bottom just than top to freeze caliber large.Therefore when carrying out freezing hole repetition measurement, because the diameter of bottom freezing pipe is larger than top freezing pipe diameter, the right alignment ensureing gyroscopic inclinometer and freezing pipe is difficult to during freezing hole repetition measurement, cause the repetition measurement bigger error of bottom freezing pipe, cause slanting of freezing hole well can not instruct the follow-up construction freezing to freeze.
Summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of gyro centralizer for retest of freezing hole, and its structure is simple, easy to use, can ensure the measuring accuracy of freezing pipe.
The technical scheme in the invention for solving the technical problem is: connecting pipe internal fixtion gyroscopic inclinometer, upper and lower adapter is fixed respectively by screw thread in the two ends up and down of connecting pipe, upper and lower capstan is fixed in upper and lower adapter respectively, the upper end of the uniform hinged upper and lower umbrella bar of difference in upper and lower capstan, the lower end of upper and lower umbrella bar is free end, the upper and lower umbrella bar of upper and lower correspondence is hinged by synchronizing bar, makes upper and lower umbrella bar can with angle folding; Empty set movable nest on described upper connecting tube, the lower end of movable nest and fulcra is hinged, and upper end and the described upper umbrella rod of fulcra are hinged, and movable nest is driven by the small oil tank be fixed in connecting pipe.
The utility model has following advantages: 1., structure is simple, easy to use.2., external diameter can be changed at any time according to freezing pipe diameter, with the close contact of freezing pipe, the measuring accuracy of freezing pipe can be ensured.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model schematic diagram;
Fig. 2 is that the utility model opens using state schematic diagram.
Embodiment
As shown in Figure 1, 2, connecting pipe 7 internal fixtion gyroscopic inclinometer, upper and lower adapter 1,11 is fixed respectively by screw thread in the two ends up and down of connecting pipe 7, upper and lower capstan 2,8 is fixed in upper and lower adapter 1,11 respectively, the upper end of the uniform hinged upper and lower umbrella bar 3,9 of difference in upper and lower capstan 2,8, the lower end of upper and lower umbrella bar 3,9 is free end, and up and down corresponding upper and lower umbrella bar 3,9 is hinged by synchronizing bar 4, makes upper and lower umbrella bar 3,9 can with angle folding; Empty set movable nest 6 on described upper connecting tube 1, movable nest 6 is hinged with the lower end of fulcra 13, and upper end and the described upper umbrella rod 3 of fulcra 13 are hinged, and movable nest 6 is driven by the small oil tank be fixed in connecting pipe 7 (not shown in FIG.).
Little ball is fixed in the lower end of described upper and lower umbrella bar 3,9, to reduce the Touch error of upper and lower umbrella bar 3,9 and freezing hole.
Described upper and lower umbrella bar 3,9 has 3-6 respectively.
Vibroshock 12 is fixed in the lower end of described lower linking tube 11.
Gyroscopic inclinometer is put into connecting pipe 7 internal fixtion, make gyroscopic inclinometer and outer tube keep right alignment.During measurement, transfer after putting in place and open upper and lower umbrella bar 3,9.Because upper and lower umbrella bar 3,9 is foldings simultaneously, so gyroscopic inclinometer is coaxial with freezing hole, get final product the deflection of Measurement accuracy freezing hole.
Claims (4)
1. a gyro centralizer for retest of freezing hole, it is characterized in that: connecting pipe (7) internal fixtion gyroscopic inclinometer, the two ends up and down of connecting pipe (7) are fixed respectively by screw thread, lower linking tube (1, 11), on, lower linking tube (1, 11) on fixing respectively on, lower capstan (2, 8), on, lower capstan (2, 8) upper respectively uniform hinged on, lower umbrella rod (3, 9) upper end, on, lower umbrella rod (3, 9) lower end is free end, upper and lower correspondence upper, lower umbrella rod (3, 9) hinged by synchronizing bar (4), make, lower umbrella rod (3, 9) can with angle folding, the upper empty set movable nest (6) of described upper connecting tube (1), movable nest (6) is hinged with the lower end of fulcra (13), upper end and the described upper umbrella rod (3) of fulcra (13) are hinged, and movable nest (6) is driven by the small oil tank be fixed in connecting pipe (7).
2. gyro centralizer for retest of freezing hole according to claim 1, is characterized in that: little ball is fixed in the lower end of described upper and lower umbrella bar (3,9).
3. gyro centralizer for retest of freezing hole according to claim 1, is characterized in that: described upper and lower umbrella bar (3,9) has 3-6 respectively.
4. gyro centralizer for retest of freezing hole according to claim 1, is characterized in that: vibroshock (12) is fixed in the lower end of described lower linking tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561842.XU CN204101050U (en) | 2014-09-28 | 2014-09-28 | Gyro centralizer for retest of freezing hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561842.XU CN204101050U (en) | 2014-09-28 | 2014-09-28 | Gyro centralizer for retest of freezing hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101050U true CN204101050U (en) | 2015-01-14 |
Family
ID=52269469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420561842.XU Expired - Lifetime CN204101050U (en) | 2014-09-28 | 2014-09-28 | Gyro centralizer for retest of freezing hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204101050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863477A (en) * | 2019-10-24 | 2020-03-06 | 北京中煤矿山工程有限公司 | Novel method for measuring inclination of long-distance horizontal freezing hole optical fiber gyroscope |
-
2014
- 2014-09-28 CN CN201420561842.XU patent/CN204101050U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863477A (en) * | 2019-10-24 | 2020-03-06 | 北京中煤矿山工程有限公司 | Novel method for measuring inclination of long-distance horizontal freezing hole optical fiber gyroscope |
| CN110863477B (en) * | 2019-10-24 | 2021-03-05 | 北京中煤矿山工程有限公司 | Long-distance horizontal freezing hole optical fiber gyroscope inclination measuring method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |