CN211059352U - Lower floating sealing device - Google Patents
Lower floating sealing device Download PDFInfo
- Publication number
- CN211059352U CN211059352U CN201922124095.9U CN201922124095U CN211059352U CN 211059352 U CN211059352 U CN 211059352U CN 201922124095 U CN201922124095 U CN 201922124095U CN 211059352 U CN211059352 U CN 211059352U
- Authority
- CN
- China
- Prior art keywords
- ring
- groove
- outer shell
- lower floating
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the technical field of drilling equipment, in particular to a lower floating sealing device, which comprises a body and an outer shell, wherein the body is sleeved on the inner side of the outer shell, and a third sealing ring is fixedly arranged on the inner side of the outer shell corresponding to the position between the outer shell and the body; the lower part inboard of body is equipped with first ring platform, and the middle part inboard that corresponds the body of first ring platform top position is equipped with interior annular groove, and the inboard fixed mounting of first ring platform has one-way sealing washer. The utility model has the advantages of reasonable and compact structure, through the stress that sets up inner ring groove release instrument and undertake to increase the bearing capacity of part, communicate between inner ring groove and the body outside through the intercommunication groove, make lubricating oil through one-way sealing washer downflow update, lubricate and cool off the sealing washer, prevent that the sealing washer from becoming invalid, increase instrument life.
Description
Technical Field
The utility model relates to a drilling equipment technical field is a lower floating sealing device.
Background
The rotary impact drilling speed-up tool is a novel drilling speed-up tool for solving the problem that the drilling speed of a drill bit is too low when the drill bit is drilled in a hard stratum in recent years, and the high-frequency axial impact force is applied to the drill bit to improve the rock breaking efficiency and further achieve the purpose of improving the drilling speed. At present, various enterprises and colleges at home and abroad develop various types of rotary impact drilling speed-increasing tools, and the tools can achieve the purpose of increasing the mechanical drilling speed, but because a mandrel reciprocates in a high-frequency motion in the use process of the tools, a sealing element is easy to damage, the tools are invalid, the service life of the tools is shortened, and the large-scale popularization of the tools is severely limited.
Disclosure of Invention
The utility model provides a lower floating sealing device has overcome above-mentioned prior art not enough, and it can effectively solve the reciprocal high frequency motion of rotatory impact drilling speed-raising instrument dabber in the use, and the sealing member very easily damages to lead to the instrument to become invalid, the problem that instrument life subtracts the weak point.
The technical scheme of the utility model is realized through following measure: a lower floating sealing device comprises a body and an outer shell, wherein the body is sleeved on the inner side of the outer shell, and a third sealing ring is fixedly arranged on the inner side of the outer shell corresponding to the position between the outer shell and the body; the lower part inboard of body is equipped with first ring platform, and the middle part inboard that corresponds the body of first ring platform top position is equipped with interior annular groove, and the inboard fixed mounting of first ring platform has one-way sealing washer.
The following are further optimization or/and improvement of the technical scheme of the utility model:
The inner side of the upper part of the body corresponding to the upper position of the inner ring groove can be provided with a second ring platform, and the inner side of the second ring platform is fixedly provided with a lining.
At least one communicating groove which is communicated up and down can be distributed on the inner side of the second annular platform along the circumference.
At least one communicating groove is uniformly distributed on the inner side of the second annular platform and can correspond to the outer side of the position of the bushing.
The inner side of the outer shell can be provided with a ring groove, and the third sealing ring is fixedly arranged inside the ring groove.
The outer side corresponding to the position of the second ring platform can be provided with a threaded hole for communicating the body and an external tool.
The utility model has the advantages of reasonable and compact structure, through the stress that sets up inner ring groove release instrument and undertake to increase the bearing capacity of part, communicate between inner ring groove and the body outside through the intercommunication groove, make lubricating oil through one-way sealing washer downflow update, lubricate and cool off the sealing washer, prevent that the sealing washer from becoming invalid, increase instrument life.
Drawings
Fig. 1 is a schematic front view of a half-sectional structure of a preferred embodiment of the present invention.
The codes in the figures are respectively: 1 is one-way sealing washer, 2 is interior annular groove, 3 is the third sealing washer, 4 is the bush, 5 is the screw hole, 6 is the intercommunication groove, 7 is the shell body, 8 is the body, 9 is first ring platform, 10 is the second ring platform.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.
The invention will be further described with reference to the following examples and drawings:
As shown in fig. 1, the lower floating seal device comprises a body 8 and an outer shell 7, wherein the body 8 is sleeved on the inner side of the outer shell 7, and a third seal ring 3 is fixedly arranged on the inner side of the outer shell 7 corresponding to the position between the outer shell 7 and the body 8; the lower part inboard of body 8 is equipped with first ring platform 9, and the middle part inboard that corresponds the body 8 of first ring platform 9 top position is equipped with interior annular groove 2, and the inboard fixed mounting of first ring platform 9 has one-way sealing washer 1. In the using process, a core shaft is arranged in the body 8, a lubricating oil ring cavity is formed between the core shaft corresponding to the upper position of the body 8 and the outer shell 7, a drilling fluid ring cavity is formed between the core shaft corresponding to the lower position of the body 8 and the outer shell 7, the lubricating oil in the lubricating oil ring cavity can flow downwards from the one-way sealing ring 1 and enter the drilling fluid ring cavity by arranging the one-way sealing ring 1, and the drilling fluid in the drilling fluid ring cavity cannot flow upwards into the lubricating oil ring cavity by the one-way sealing ring 1, so that the lubricating oil can flow and be renewed, and the pressure in the lubricating oil ring cavity is prevented from being overlarge; the inner ring groove 2 is used for releasing stress borne by the mandrel, and bearing capacity between the mandrel and the body 8 is increased.
The lower floating sealing device can be further optimized or/and improved according to actual needs:
As shown in fig. 1, a second annular table 10 is provided on the inner side of the upper portion of the main body 8 at a position above the inner annular groove 2, and the bush 4 is fixedly mounted on the inner side of the second annular table 10. In the use process, through setting up like this, make the junction between dabber and the body 8 use bush 4 to support, bush 4 has wear-resisting effect to prevent that the dabber from rotating at a high speed in the inside of body 8 and damaging body 8.
As shown in fig. 1, at least one communicating groove 6 is distributed along the circumference inside the second annular table 10. Make lubricating oil enter into the inside of interior ring channel 2 through communicating groove 6 through setting up communicating groove 6, then ooze through one-way sealing washer 1, make the interior lubricating oil of interior ring channel 2 can flow the renewal, play lubricated and refrigerated effect to the sealing washer, avoid the sealing washer because high frequency friction leads to the ageing sealed inefficacy of material.
As shown in the attached figure 1, at least one communicating groove 6 is uniformly distributed on the inner side of the second annular table 10 corresponding to the outer side of the position of the bushing 4. In the use process, the communicating groove 6 is arranged, so that the lubricating oil flows through the communicating groove 6, and the flowing renewal of the lubricating oil is facilitated.
As shown in fig. 1, a ring groove is formed in the inner side of the outer casing 7, and the third sealing ring 3 is fixedly installed in the ring groove. In the use process, the third sealing ring 3 is convenient to be installed inside the annular groove through the arrangement, and the third sealing ring 3 is fixed.
As shown in fig. 1, a screw hole 5 for communication between the body 8 and an external tool is provided at an outer side corresponding to a position of the second land 10. In use, the body 8 and an external tool can be connected together through the threaded hole 5 conveniently through the arrangement.
The utility model discloses best embodiment's use:
In use, by installing the mandrel inside the body 8, forming a lubricating oil ring cavity between the mandrel corresponding to the position above the body 8 and the outer shell 7, forming a drilling fluid ring cavity between the mandrel corresponding to the position below the body 8 and the outer shell 7, when the pressure in the drilling fluid ring cavity and the pressure in the lubricating oil ring cavity are unequal, the body 8 will move up and down because the body 8 has no limitation, when the pressure value in the drilling fluid ring cavity is large, the body 8 moves up, when the pressure in the lubricating oil ring cavity is large, the body 8 moves down to balance the pressure between the drilling fluid ring cavity and the lubricating oil ring cavity, preventing the generation of pressure hold-up, the body 8 is sealed with the outer shell 7 by the third sealing ring 3, the body 8 is sealed with the mandrel by the one-way sealing ring 1, so that the lubricating oil on the upper part of the body 8 flows into the lower part through the communicating groove 6 and the one-, and the drilling fluid of 8 lower parts of body can not flow into upper portion because the sealed effect of one-way sealing washer 1 and third sealing washer 3 to make lubricating oil can flow the renewal, lubricating oil plays lubricated effect to the sealing washer simultaneously, prevents that the ageing sealed inefficacy of sealing washer material.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (9)
1. A lower floating sealing device is characterized by comprising a body and an outer shell, wherein the body is sleeved on the inner side of the outer shell, and a third sealing ring is fixedly arranged on the inner side of the outer shell corresponding to the position between the outer shell and the body; the lower part inboard of body is equipped with first ring platform, and the middle part inboard that corresponds the body of first ring platform top position is equipped with interior annular groove, and the inboard fixed mounting of first ring platform has one-way sealing washer.
2. The lower floating seal assembly of claim 1, wherein a second annular platform is provided on the inner side of the upper portion of the body corresponding to the position above the inner annular groove, and a bushing is fixedly mounted on the inner side of the second annular platform.
3. The lower floating seal device of claim 2, wherein at least one communicating groove is distributed along the circumference inside the second annular platform and penetrates up and down.
4. A lower floating seal according to claim 2 or 3, characterised in that at least one communicating groove is evenly distributed on the inner side of the second annular platform corresponding to the outer side of the position of the bush.
5. A lower floating seal according to claim 1, 2 or 3 wherein the inner side of the outer casing is provided with a ring groove, and the third seal ring is fixedly mounted inside the ring groove.
6. The lower floating seal assembly of claim 4, wherein the inner side of the outer casing is formed with a ring groove, and the third seal ring is fixedly installed inside the ring groove.
7. A lower floating seal according to claim 1 or 2 or 3 or 6 characterised in that the outer side corresponding to the position of the second land is provided with a threaded bore for communication between the body and an external tool.
8. The lower floating seal of claim 4, wherein the outer side corresponding to the location of the second land is provided with a threaded hole for communication between the body and an external tool.
9. The lower floating seal of claim 5, wherein the outer side corresponding to the location of the second land is provided with a threaded hole for communication between the body and an external tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124095.9U CN211059352U (en) | 2019-12-02 | 2019-12-02 | Lower floating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124095.9U CN211059352U (en) | 2019-12-02 | 2019-12-02 | Lower floating sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211059352U true CN211059352U (en) | 2020-07-21 |
Family
ID=71586047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922124095.9U Active CN211059352U (en) | 2019-12-02 | 2019-12-02 | Lower floating sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211059352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538928A (en) * | 2022-10-20 | 2022-12-30 | 宜宾学院 | Torsion impactor of torque balance drilling tool |
-
2019
- 2019-12-02 CN CN201922124095.9U patent/CN211059352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538928A (en) * | 2022-10-20 | 2022-12-30 | 宜宾学院 | Torsion impactor of torque balance drilling tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009243911B2 (en) | Drilling apparatus | |
| CN211059352U (en) | Lower floating sealing device | |
| CN201354615Y (en) | Gas underbalance well drilling rotary blowout preventer | |
| CN109555472B (en) | Rotary impact device | |
| CN102979463B (en) | A kind of damping device for cutting drill unit head | |
| CN201053297Y (en) | Non-rotating drag reduction low-torsion drill rod protector | |
| CN205859103U (en) | The hydraulic prop chassis rock drill hermetically sealed assembly pulley of haulage cable single cavity | |
| CN104278948A (en) | Transmission shaft assembly of positive displacement motor drill | |
| CN104975806A (en) | Efficient and durable PDM drill | |
| CN203383727U (en) | Screw drill tool with long service life and high performance | |
| CN2906030Y (en) | Mechanical sealing device for small-sized roller bit which is no more than 6'' | |
| CN218152352U (en) | Sealing structure for electric hammer | |
| CN211059355U (en) | Upper floating sealing device | |
| CN107246238B (en) | Integrated impact downhole power drilling tool | |
| CN111485819A (en) | Vibration impact drilling speed-increasing tool | |
| CN202273623U (en) | Large-diameter long semi-closed pipe drill withdrawing core drilling tool for deep hole complex stratum | |
| CN204380755U (en) | A kind of cone crusher | |
| CN111021947B (en) | Rotary impact tool | |
| CN209603873U (en) | Axial vibration tool | |
| CN107620591B (en) | Using method of mechanical device for drilling engineering | |
| CN207521755U (en) | A kind of valve drilling equipment of stable connection | |
| CN202913975U (en) | Damping device for cutting drilling machine power head | |
| CN202431504U (en) | Floating sealing device for vertical pump | |
| CN212123151U (en) | Positioning and mounting structure for drill bushing on electric hammer | |
| CN218934467U (en) | Drilling box for anchor bolt support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |