CN204007393U - A kind of deep hole centring means - Google Patents
A kind of deep hole centring means Download PDFInfo
- Publication number
- CN204007393U CN204007393U CN201420388117.7U CN201420388117U CN204007393U CN 204007393 U CN204007393 U CN 204007393U CN 201420388117 U CN201420388117 U CN 201420388117U CN 204007393 U CN204007393 U CN 204007393U
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- support bar
- deep hole
- centring means
- support
- bar
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Abstract
The utility model relates to a kind of deep hole centring means, belongs to longhole survey servicing unit.The utility model comprises that disk and four equal lengths and end are the first support bar, the second support bar, the 3rd support bar and the 4th support bar of spherical shape, four equal length support bars are distributed in disk surrounding, by trip bolt, locked, wherein the first adjacent support bar, the second support bar are one group, adjacent the 3rd support bar and the 4th support bar are one group, and two groups of support bars are in respectively two different cross sections perpendicular to disc axis; Two bar space angles of arbitrary neighborhood are 90 °.During work, deep hole centring means enters in deep hole with certain angle of inclination under the drive of sounding rod, arrives and needs after centered positions, and four equal length support bars are contacted with hole wall, realizes centering, and disc centre is the center of this location hole.Because centring means enters deep hole process, do not contact with hole wall, so self do not have wearing and tearing, can not cause wearing and tearing to bore area yet.
Description
Technical field
The utility model relates to a kind of deep hole centring means, belongs to longhole survey servicing unit.
Background technology
Deep hole centering is the function of many longhole survey device indispensabilities, and whether centering is accurately related to the reliability of longhole survey measurement device result.In at present conventional deep hole, centering mode is three points centering, and similar machine tool three-jaw chuck principle generally realizes the centering of three-jaw tensioner by spring, while moving in hole, due to the effect of spring swelling power, has the shortcoming of wearing and tearing bore area.
Summary of the invention
The purpose of this utility model is to provide a kind of deep hole centring means of the bore area that do not wear and tear.
Technical solution
The utility model comprises the first support bar, the second support bar, the 3rd support bar and the 4th support bar of disk and four equal lengths, four equal length support bars are distributed in disk surrounding, wherein the first adjacent support bar, the second support bar are one group, adjacent the 3rd support bar and the 4th support bar are one group, and two groups of support bars are in respectively two different cross sections perpendicular to disc axis; Two bar space angles of arbitrary neighborhood are 90 °.
The end of described the first support bar, the second support bar, the 3rd support bar and the 4th support bar is spherical shape.
The utility model adopts 4 centering modes, and device does not contact with endoporus while moving in hole, only when centering, contacts with endoporus, has avoided the skimming wear in hole.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the side view of Fig. 1.
Embodiment
The utility model comprises that disk 6 and four equal lengths and end are the first support bar 1, the second support bar 2, the 3rd support bar 3 and the 4th support bar 4 of spherical shape, four equal length support bars are distributed in disk surrounding, by trip bolt 5, locked, wherein adjacent the first support bar 1, the second support bar 2 is one group, the 3rd adjacent support bar 3 and the 4th support bar 4 are one group, and two groups of support bars are in respectively two different cross sections perpendicular to disc axis; Two bar space angles of arbitrary neighborhood are 90 °.
During work, deep hole centring means enters in deep hole with certain angle of inclination under sounding rod drives, and arrives and needs after centered positions, and four equal length support bars are contacted with hole wall, realizes centering, and disc centre is the center of this location hole.Because centring means enters deep hole process, do not contact with hole wall, so self do not have wearing and tearing, can not cause wearing and tearing to bore area yet.
Claims (2)
1. a deep hole centring means, it is characterized in that, the first support bar (1), the second support bar (2), the 3rd support bar (3) and the 4th support bar (4) that comprise disk (6) and four equal lengths, four equal length support bars are distributed in disk surrounding, wherein adjacent the first support bar (1), the second support bar (2) are one group, adjacent the 3rd support bar (3) and the 4th support bar (4) are one group, and two groups of support bars are in respectively two different cross sections perpendicular to disc axis; Two bar space angles of arbitrary neighborhood are 90 °.
2. deep hole centring means according to claim 1, is characterized in that, the end of the first support bar (1), the second support bar (2), the 3rd support bar (3) and the 4th support bar (4) is spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388117.7U CN204007393U (en) | 2014-07-15 | 2014-07-15 | A kind of deep hole centring means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388117.7U CN204007393U (en) | 2014-07-15 | 2014-07-15 | A kind of deep hole centring means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007393U true CN204007393U (en) | 2014-12-10 |
Family
ID=52047380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388117.7U Active CN204007393U (en) | 2014-07-15 | 2014-07-15 | A kind of deep hole centring means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007393U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709471A (en) * | 2018-05-04 | 2018-10-26 | 桂林电子科技大学 | Flexible circular arc center of circle positioning device |
| CN109162996A (en) * | 2018-11-06 | 2019-01-08 | 江苏中天科技电缆附件有限公司 | The sticker of inner walls of deep holes foil gauge |
| CN109282747A (en) * | 2018-10-11 | 2019-01-29 | 中海福陆重工有限公司 | A kind of underwater flange screw hole positioning measuring device |
| CN109352034A (en) * | 2018-12-03 | 2019-02-19 | 江西洪都航空工业集团有限责任公司 | A kind of high-precision is evenly distributed with boring device and its boring method |
| CN110954046A (en) * | 2019-11-05 | 2020-04-03 | 内蒙古北方重工业集团有限公司 | Automatic taper hole centering device and taper hole taper measuring method thereof |
-
2014
- 2014-07-15 CN CN201420388117.7U patent/CN204007393U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709471A (en) * | 2018-05-04 | 2018-10-26 | 桂林电子科技大学 | Flexible circular arc center of circle positioning device |
| CN109282747A (en) * | 2018-10-11 | 2019-01-29 | 中海福陆重工有限公司 | A kind of underwater flange screw hole positioning measuring device |
| CN109162996A (en) * | 2018-11-06 | 2019-01-08 | 江苏中天科技电缆附件有限公司 | The sticker of inner walls of deep holes foil gauge |
| CN109352034A (en) * | 2018-12-03 | 2019-02-19 | 江西洪都航空工业集团有限责任公司 | A kind of high-precision is evenly distributed with boring device and its boring method |
| CN110954046A (en) * | 2019-11-05 | 2020-04-03 | 内蒙古北方重工业集团有限公司 | Automatic taper hole centering device and taper hole taper measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |