CN201874474U - Anti-falling device under novel torsional-impact drilling tool - Google Patents
Anti-falling device under novel torsional-impact drilling tool Download PDFInfo
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- CN201874474U CN201874474U CN2010206488548U CN201020648854U CN201874474U CN 201874474 U CN201874474 U CN 201874474U CN 2010206488548 U CN2010206488548 U CN 2010206488548U CN 201020648854 U CN201020648854 U CN 201020648854U CN 201874474 U CN201874474 U CN 201874474U
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- falling
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Abstract
The utility model relates to an anti-falling device under a novel torsional-impact drilling tool, which mainly comprises a shell, a transmission shaft, a transmission-shaft groove, an anti-falling block, a spring, a shell groove, a stepped hole, a sealing gasket, a liquid-blocking plate and a clamping spring, wherein the shell and the transmission shaft are in clearance fit, the radial thickness of the anti-falling block is smaller than the depth of the transmission-shaft groove, and the anti-falling block is compressed in the transmission-shaft groove; when the anti-falling device is installed and a cavity body is formed by the transmission-shaft groove and the shell groove, the spring is released, and the anti-falling block is pushed to the wall surface of the shell groove to form the anti-falling device; and the stepped hole for disassembling tools is arranged on the shell, the sealing gasket, the liquid-blocking plate and the clamping spring are sequentially installed on the stepped hole from inside to outside, the liquid-blocking structure can be used for preventing liquid from entering the cavity body wherein the anti-falling block is positioned, and the situation of automatic disassembly is avoided. The device has a simple and reliable structure and high safety coefficient and is easy to assemble and disassemble.
Description
Technical field
The utility model relates to falling-proof apparatus under a kind of torsional impact drilling tool that is used for the oil and gas well drilling process.
Background technology
Torsional impact drilling tool is a kind ofly to apply the well dynamic instrument of high frequency torsional pulse by a narrow margin to drill bit, and it is realized by the mechanical energy that the hydraulic pressure with fluid can be converted to torsional impact drilling tool.As the downhole tool that directly is connected with drill bit, it bears the pressure of the drill and moment of torsion, also bears the dither that torsional impact drilling tool itself produces.The tool interior component exist the possibility of inefficacy, therefore are necessary a safe and reliable following falling-proof apparatus to torsional impact drilling tool to be set.Traditional downhole tool falling-proof apparatus adopts pin to bear the pulling force of lower drilling tool more, just in case accident such as bit freezing takes place in the drilling process, pin will bear very big pulling force, drilling failure such as cause that drill bit comes off easily.The following anti-lost structure that pin is set on housing may release screw automatically because of the vibration that torsional pulse produces again and fall into the shaft bottom, screwed hole on the housing makes fluid that anti-lost in the falling-proof apparatus is inwardly moved and the compression spring again easily, cause anti-lost structural failure down, cause drilling failure.
Summary of the invention
The purpose of this utility model is: in order to overcome above-mentioned difficult point, prevent the torsional impact drilling tool inner body just in case fell into the shaft bottom after losing efficacy, avoid the generation of drilling failure, falling-proof apparatus under a kind of novel torsional impact drilling tool of special proposition.
In order to achieve the above object, the technical solution adopted in the utility model is: falling-proof apparatus under a kind of novel torsional impact drilling tool, mainly by housing, power transmission shaft, the power transmission shaft groove, anti-lost, spring, housing groove, shoulder hole, gasket seal, stifled liquid plate and jump ring are formed, described housing and power transmission shaft matched in clearance, anti-lost radial thickness is less than the degree of depth of power transmission shaft groove, anti-lost is compressed in the power transmission shaft groove, during installation when power transmission shaft groove and housing groove form cavity, spring discharges, anti-lost is pushed toward housing groove wall formation falling-proof apparatus, housing is provided with the shoulder hole that is used for demounting tool, shoulder hole is equipped with gasket seal from inside to outside successively, stifled liquid plate and jump ring, this stifled liquid structure can prevent that liquid from entering the cavity at anti-lost place, avoids occurring the situation of dismounting automatically.This apparatus structure is simple and reliable, and the safety factor height is easy to installation and removal.
Compared with prior art, the beneficial effect that the utlity model has is: offer groove respectively on power transmission shaft place of setting upright and housing, falling-proof apparatus can additionally not increase the length of instrument, offers groove on the housing and non through hole, the casing rigidity height; Gasket seal, stifled liquid plate and jump ring are installed in the shoulder hole that housing is provided with successively, can prevent that liquid from entering instrument by housing, avoid occurring liquid and promote anti-lost and make the falling-proof apparatus failure phenomenon; The anti-lost load that can bear is big, can tackle phenomenons such as drill bit bit freezing, and this frock interposed structure is simple, the safety factor height, and installation and removal are convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing at I place among Fig. 1;
Fig. 3 is the partial view that torsional impact drilling tool of the present utility model is housed.
Among the figure: 1. housing, 2. power transmission shaft, 3. power transmission shaft groove, 4. anti-lost, 5. spring, 6. housing groove, 7. shoulder hole, 8. gasket seal, 9. stifled liquid plate, 10. jump ring.
The specific embodiment
According to shown in Figure 1, the utility model is made up of housing 1, power transmission shaft 2, power transmission shaft groove 3, anti-lost 4, spring 5, housing groove 6, shoulder hole 7, gasket seal 8, stifled liquid plate 9 and jump ring 10, described housing 1 and power transmission shaft 2 matched in clearance, anti-lost 4 radial thickness is less than the degree of depth of power transmission shaft groove 3, be compressed in for anti-lost 4 in the power transmission shaft groove 3, during installation when power transmission shaft groove 3 forms cavitys with housing groove 6, spring 5 discharges, and anti-lost 4 is pushed toward housing groove 6 walls formation falling-proof apparatus.
According to shown in Figure 2, housing 1 is provided with the shoulder hole 7 that is used for the instrument dismounting, the aperture of close housing 1 inwall is less than aperture, the outside, the hole in different apertures forms step, the centre of shoulder hole 7 is provided with groove, shoulder hole 7 is equipped with gasket seal 8, stifled liquid plate 9 and jump ring 10 from inside to outside successively, and gasket seal 8 and stifled liquid plate 9 are loaded on the step of shoulder hole 7, and jump ring 10 is installed on the groove of shoulder hole 7.
According to shown in Figure 3, be compressed in for anti-lost 4 in the power transmission shaft groove 3, power transmission shaft 2 penetrates from housing 1 bottom, note alignment power transmission shaft groove 3 and housing groove 6 in the installation process, when power transmission shaft groove 3 moves to housing groove 6 places and cooperate the formation cavity, spring 5 discharges automatically, is pushed past housing groove 6 for anti-lost 4 and is close to housing 1 wall, forms falling-proof apparatus.
Claims (1)
1. falling-proof apparatus under the novel torsional impact drilling tool, mainly by housing (1), power transmission shaft (2), power transmission shaft groove (3), anti-lost (4), spring (5), housing groove (6), shoulder hole (7), gasket seal (8), stifled liquid plate (9) and jump ring (10) are formed, described housing (1) and power transmission shaft (2) matched in clearance, the radial thickness of anti-lost (4) is less than the degree of depth of power transmission shaft groove (3), anti-lost (4) are compressed in the power transmission shaft groove (3), during installation when power transmission shaft groove (3) and housing groove (6) form cavity, spring (5) discharges, anti-lost (4) are pushed toward housing groove (6) wall and form falling-proof apparatus, housing is provided with the shoulder hole (7) that is used for demounting tool and uses, and shoulder hole is equipped with gasket seal (8) from inside to outside successively, stifled liquid plate (9) and jump ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206488548U CN201874474U (en) | 2010-12-09 | 2010-12-09 | Anti-falling device under novel torsional-impact drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206488548U CN201874474U (en) | 2010-12-09 | 2010-12-09 | Anti-falling device under novel torsional-impact drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874474U true CN201874474U (en) | 2011-06-22 |
Family
ID=44162397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206488548U Expired - Lifetime CN201874474U (en) | 2010-12-09 | 2010-12-09 | Anti-falling device under novel torsional-impact drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874474U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387036A (en) * | 2015-12-11 | 2016-03-09 | 中国船舶重工集团公司第七一九研究所 | Face contact-type self-adaptive undamaged fast installing and fastening device |
| CN105927147A (en) * | 2016-07-05 | 2016-09-07 | 西南石油大学 | Speed raising tool for percussion drilling and method |
| CN106121513A (en) * | 2016-07-05 | 2016-11-16 | 西南石油大学 | A kind of composite impact drilling tool |
| CN111923662A (en) * | 2020-07-20 | 2020-11-13 | 浙江零跑科技有限公司 | Automobile wheel-side power transmission system |
-
2010
- 2010-12-09 CN CN2010206488548U patent/CN201874474U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387036A (en) * | 2015-12-11 | 2016-03-09 | 中国船舶重工集团公司第七一九研究所 | Face contact-type self-adaptive undamaged fast installing and fastening device |
| CN105387036B (en) * | 2015-12-11 | 2018-05-11 | 中国船舶重工集团公司第七一九研究所 | A kind of face contact type self-adaptive non-loss fast-assembling clamp device |
| CN105927147A (en) * | 2016-07-05 | 2016-09-07 | 西南石油大学 | Speed raising tool for percussion drilling and method |
| CN106121513A (en) * | 2016-07-05 | 2016-11-16 | 西南石油大学 | A kind of composite impact drilling tool |
| CN105927147B (en) * | 2016-07-05 | 2018-08-10 | 西南石油大学 | A kind of percussion drilling speed-raising tool and method |
| CN111923662A (en) * | 2020-07-20 | 2020-11-13 | 浙江零跑科技有限公司 | Automobile wheel-side power transmission system |
| CN111923662B (en) * | 2020-07-20 | 2021-10-22 | 浙江零跑科技股份有限公司 | Automobile wheel-side power transmission system |
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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 |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |