CN112228564A - Wet-type drilling rotation mechanism - Google Patents
Wet-type drilling rotation mechanism Download PDFInfo
- Publication number
- CN112228564A CN112228564A CN202011228763.3A CN202011228763A CN112228564A CN 112228564 A CN112228564 A CN 112228564A CN 202011228763 A CN202011228763 A CN 202011228763A CN 112228564 A CN112228564 A CN 112228564A
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- Prior art keywords
- sealing
- shell
- ring
- hole
- wet
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 8
- 229920001973 fluoroelastomer Polymers 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
Abstract
The invention discloses a wet drilling and rotating mechanism which comprises a shell and a rotating shaft penetrating through a central through hole of the shell, wherein the shell adopts a step-shaped cylindrical structure of the inner wall with the inner diameters of two ends larger than the inner diameter of the middle part, a radial water inlet hole is formed in the inner diameter of the middle part of the shell, a radial water through hole is formed in the rotating shaft, and a mechanical sealing mechanism for communicating the radial water inlet hole and the radial water through hole is arranged between the rotating shaft and the shell; the mechanical sealing mechanism comprises a sealing movable ring and two sealing static rings which respectively form end face sealing with two end faces of the sealing movable ring, a communicating hole is formed in the sealing movable ring, the two sealing static rings are respectively fixed on the inner wall of the large inner diameter of the shell, deep groove ball bearings are respectively arranged on the outer sides of the two sealing static rings, a thrust bearing is arranged on the outer side of the deep groove ball bearing on one side, and an end cover is arranged on the outer side of the deep groove ball bearing on the other side. The inner wall of the shell is improved, so that the installation of a mechanical sealing mechanism is met, the wear-resisting and leakage-resisting effects are good, the assembly and disassembly of accessories are convenient, the maintenance is convenient, and the mechanical efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of drilling machines, in particular to a wet-type drilling and slewing mechanism.
Background
At present, the conventional imported driving and anchoring machine MB670 and most anchor rod drilling machines in China basically adopt a wet dust removal mode for a slewing mechanism, the internal structure is that sealing grooves are processed on two sides of a water tank on the inner wall of a shell of the slewing mechanism, a Glay ring seal is arranged in the grooves, a slewing shaft is arranged in the shell of the slewing mechanism, shafts on the outer sides of the two sealing grooves are matched, and the structure has higher requirements on the type selection of a sealing ring, the surface precision of an output shaft and the wear resistance. In addition, the structure easily causes abrasion to both the sealing ring and the rotating shaft, the rotating mechanism leaks water after the abrasion, the sealing groove is easily corroded and cannot be cleaned after the water leakage, the sealing effect after the maintenance is still not good, and the service life is greatly shortened. And because the sealing ring is embedded in the inner groove of the contact surface of the rotating shaft and the shell of the slewing mechanism, the sealing ring is inconvenient to replace and difficult to overhaul.
The problems cause that the existing slewing mechanism of the driving and anchoring machine can not be used after water leakage after being used for about 6 months generally, needs to be repaired or replaced, and has short service life after repair, so that the water leakage problem of the slewing mechanism belongs to the key problem which needs to be solved urgently in the field.
The application is an improvement scheme that provides to above-mentioned problem, creates a new wet-type drilling rotation mechanism, makes it reduce the sealing washer to the wearing and tearing of revolving axle itself, guarantees sealed effect, increase of service life, and the maintenance is simple and convenient.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a wet drilling slewing mechanism, which reduces the abrasion of a sealing ring on a slewing shaft, ensures the sealing effect, prolongs the service life, is simple and convenient to maintain and overcomes the defects of the existing wet drilling slewing mechanism.
In order to solve the technical problems, the invention provides a wet drilling and rotating mechanism which comprises a shell and a rotating shaft penetrating through a central through hole of the shell, wherein one end of the rotating shaft is used for being connected with a power motor, the other end of the rotating shaft is connected with a shaft head nut, the shell adopts a step-shaped cylindrical structure of the inner wall with the inner diameters of two ends larger than the inner diameter of the middle part, a radial water inlet hole is arranged at the inner diameter of the middle part of the shell, a radial water through hole is arranged on the rotating shaft corresponding to the radial water inlet hole, the radial water through hole is communicated with the central hole of the rotating shaft, and a mechanical sealing mechanism for communicating the radial water inlet hole and the;
mechanical seal mechanism includes sealed rotating ring and forms two sealed quiet rings of end face seal respectively rather than both ends face, sealed rotating ring with revolving axle fixed connection, just the intercommunicating pore has been seted up on the sealed rotating ring, two sealed quiet ring is fixed respectively on the inner wall of casing main inside warp, two the outside of sealed quiet ring is equipped with deep groove ball bearing respectively, is close to the power motor side the deep groove ball bearing outside is equipped with thrust bearing, keeps away from the power motor side the deep groove ball bearing outside is equipped with the end cover, the end cover with casing terminal surface fixed connection.
In a further improvement, a boss is arranged on the outer side of the rotating shaft close to the power motor, and the thrust bearing and the deep groove ball bearing are respectively arranged on two sides of the boss.
In a further improvement, the sealing movable ring adopts a sealing movable ring with an elastic force or magnetic force compensation function.
The sealing device is further improved, and the joint end faces of the sealing static ring and the sealing moving ring are made of high-hardness alloy materials.
The improved structure is characterized in that a fluororubber sealing ring is arranged on a fixed connecting surface of the movable sealing ring and the rotating shaft, a fluororubber sealing ring is arranged on a fixed connecting surface of the static sealing ring and the shell, and a dustproof sealing ring is arranged between the end cover and the rotating shaft.
In a further improvement, a liquid preparation block is further arranged on the outer side of the shell, a water through hole is formed in the liquid preparation block, and the water through hole is in butt joint with a radial water through hole in the shell.
In a further improvement, the outer side of the shell is of a square structure, the two opposite sides of the square structure are provided with the radial water through holes, and the radial water through holes arranged on the two opposite sides are symmetrically arranged.
Further improvement, the spindle nose nut is connected with drill rods of different specifications.
After adopting such design, the invention has at least the following advantages:
the invention improves the inner wall of the shell of the existing swing mechanism, so that the requirement of arranging a mechanical sealing mechanism between the shell and the rotating shaft is met, two end faces of the mechanical sealing mechanism which are vertical to the shaft and slide relatively are kept attached under the compensation action of elasticity or magnetic force and are matched with auxiliary sealing, a leakage-resistant shaft seal structure is achieved, zero abrasion of the rotating shaft and a seal movable ring is realized, the sealing effect is good, the sliding end faces are abrasion-resistant, and the service life of the swing mechanism is greatly prolonged. And through the improvement of the inner wall of the shell, the inner diameters of the two sides of the shell are larger than the inner diameter of the middle part of the shell, and the arrangement of the end cover and the bulge is combined, so that the installation and the disassembly of the sealing static ring, the deep groove ball bearing and the thrust bearing are convenient, and the maintenance of the slewing mechanism is simple and rapid.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic cross-sectional view of a wet type hole drilling and turning mechanism according to the present invention.
Fig. 2 is an overall plan view of the wet drill rig slewing mechanism of the present invention.
Figure 3 is an end-side schematic view of the wet drill rig rotary mechanism of the present invention.
Detailed Description
In order to solve the problems that accessories are not easy to replace during maintenance, the requirement on the surface precision of a rotating shaft is high during processing, a shell is corroded after water leakage to cause scrapping or the service life of maintenance is short and the like of the conventional slewing mechanism of an excavating anchor machine and a wet dust removal anchor rod and anchor cable drilling machine, the JCJM-ZZZX type wet drilling slewing mechanism is provided. Specific examples thereof are as follows.
Referring to fig. 1 to 3, the wet type boring and slewing mechanism of the present embodiment includes a housing 1 and a slewing shaft 3 passing through a central through hole of the housing 1, wherein one end of the slewing shaft 3 is connected to a power motor 8 through a spline, and the other end thereof is connected to a spindle nut 2. Therefore, the power motor 8 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the shaft head nut 2 to rotate, and finally the drill rod is driven to rotate, so that the purpose of drilling is achieved.
The spindle nose nut 2 can be connected with drill rods with different specifications, so that the slewing mechanism can adapt to the drill rods with different specifications, and the application range is expanded.
In this embodiment, the casing 1 is a stepped cylindrical structure with inner walls having inner diameters larger than the middle inner diameter at two ends, a radial water inlet hole 11 is formed at the middle inner diameter of the casing 1, a radial water through hole 31 is formed on the rotary shaft 3 corresponding to the radial water inlet hole 11, the radial water through hole 31 is communicated with a central hole 32 of the rotary shaft 3, and a mechanical sealing mechanism 7 for communicating the radial water inlet hole 11 and the radial water through hole 31 is arranged between the rotary shaft 3 and the casing 1.
The mechanical sealing mechanism 7 comprises a sealing movable ring 71 and two sealing static rings 72 which respectively form end face sealing with two end faces of the sealing movable ring 71, the sealing movable ring 71 is fixedly connected with the rotating shaft 3, a communication hole 711 is formed in the sealing movable ring 71, the communication hole 711 is used for communicating the radial water inlet hole 11 and the radial water through hole 31, and external water enters the communication hole 711, the radial water through hole 31 and the central hole 32 of the rotating shaft 3 from the radial water inlet hole 11 in sequence and is finally discharged from the front end of a drill rod. The two static sealing rings 72 are respectively fixed on the inner wall of the large inner diameter of the shell 1, and the outer sides of the two static sealing rings 72 are respectively provided with a deep groove ball bearing 5 to improve the stability and limit function of the rotating shaft 3. And a thrust bearing 6 is arranged on the outer side of the deep groove ball bearing 5 close to the power motor side, so that the power output of the rotating shaft 3 is ensured. An end cover 4 is arranged on the outer side of the deep groove ball bearing 5 far away from the power motor, and the end cover 4 is fixedly connected with the end face of the shell 1.
The rotary shaft 3 is provided with a boss 33 on the outer side near the power motor, and the thrust bearing 6 and the deep groove ball bearing 5 are respectively arranged on both sides of the boss 33.
In this embodiment, the seal moving ring 71 is a seal moving ring having an elastic or magnetic compensation function. The joint end faces of the static sealing ring 72 and the movable sealing ring 71 are made of high-hardness wear-resistant alloy materials, the flatness of a friction face can reach 0.1 micrometer, the surface roughness is 0.002 micrometer, the friction coefficient is low, the wear-resistant strength is high, lubrication is not needed, even if slight abrasion exists, a compensation function is realized between friction pairs, the friction face can be always kept jointed, and therefore the service life of the drilling machine is greatly prolonged. And the fixed connection surface of the movable sealing ring 71 and the rotating shaft 3 is provided with an F26 fluorine rubber sealing ring, the fixed connection surface of the static sealing ring 72 and the shell 1 is provided with an F26 fluorine rubber sealing ring, and a dustproof sealing ring 41 is arranged between the end cover 4 and the rotating shaft 3. The mechanical sealing mechanism is suitable for rotating speed less than 3000r/min, and completely meets the requirement of drilling operation of 500-.
A liquid distribution block 10 is further provided outside the casing 1, a water passage hole 101 is provided in the liquid distribution block 10, and the water passage hole 101 is butted against a radial water passage hole 11 in the casing 1 to supply water to the turning mechanism.
In this embodiment, the outer side of the casing 1 adopts a trapezoid or square structure, two opposite sides of the trapezoid or square structure are provided with the radial water through holes 71, and the radial water through holes 71 arranged on the two opposite sides are symmetrically arranged. Thus, the liquid distribution blocks 10 can be symmetrically arranged on two sides of the shell 1, and can be exchanged left and right, so that the use universality is improved.
In addition, the power motor in this embodiment is a hydraulic motor, and the housing 1 is further provided with an oil through hole 13 for implementing hydraulic power transmission to the hydraulic motor.
The groove structure is omitted in the shell of the slewing mechanism, and the step-shaped cylindrical structure with slightly larger inner diameters at two ends is adopted, so that the machining difficulty and machining precision of the slewing shaft are reduced, and the disassembly and the replacement of accessories are facilitated. And compared with a transmission sealing ring structure, the mechanical sealing mechanism has the advantages of small friction coefficient, prolonged service life of the drill box and effectively improved mechanical efficiency.
And the vibration resistance of the drilling box is good, the vibration and deflection of the rotating shaft and the deflection of the shaft to the sealing cavity can both ensure the tight fit of the sealing surface under the elastic compensation effect, and the leakage-resisting effect is good.
The rotary mechanism also adopts the matching use of the deep groove ball bearing and the thrust bearing, so that the rotary shaft can realize better power transmission. And the symmetrical design of the oil through hole, the water through hole and the liquid distribution block of the swing mechanism enables the swing mechanism to be installed in a left-right interchangeable mode, and the application range is wide.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (8)
1. A wet drilling and rotating mechanism comprises a shell and a rotating shaft penetrating through a central through hole of the shell, wherein one end of the rotating shaft is used for being connected with a power motor, and the other end of the rotating shaft is connected with a shaft head nut;
mechanical seal mechanism includes sealed rotating ring and forms two sealed quiet rings of end face seal respectively rather than both ends face, sealed rotating ring with revolving axle fixed connection, just the intercommunicating pore has been seted up on the sealed rotating ring, two sealed quiet ring is fixed respectively on the inner wall of casing main inside warp, two the outside of sealed quiet ring is equipped with deep groove ball bearing respectively, is close to the power motor side the deep groove ball bearing outside is equipped with thrust bearing, keeps away from the power motor side the deep groove ball bearing outside is equipped with the end cover, the end cover with casing terminal surface fixed connection.
2. The wet drilling and slewing mechanism as claimed in claim 1, wherein a boss is provided on an outer side of the slewing shaft adjacent to the power motor, and the thrust bearing and the deep groove ball bearing are provided on both sides of the boss.
3. The wet type hole drilling and slewing mechanism according to claim 1, wherein the sealing movable ring is a sealing movable ring having an elastic force or magnetic force compensation function.
4. The wet type hole drilling and slewing mechanism as claimed in claim 1, wherein the joint end faces of the static sealing ring and the dynamic sealing ring are made of high hardness alloy material.
5. The wet type drilling and slewing mechanism according to claim 1, wherein a fluororubber sealing ring is disposed on a fixed connection surface of the dynamic sealing ring and the slewing shaft, a fluororubber sealing ring is disposed on a fixed connection surface of the static sealing ring and the housing, and a dust sealing ring is disposed between the end cover and the slewing shaft.
6. The wet drilling and slewing mechanism according to any one of claims 1 to 5, wherein a liquid distribution block is further provided outside the housing, and a water passage hole is provided on the liquid distribution block and is butted with a radial water passage hole on the housing.
7. The wet boring rotary mechanism of claim 6, wherein the housing is formed in a square shape on an outer side thereof, and the radial water passage holes are formed on two opposite sides of the square shape and are symmetrically formed.
8. The wet boring rotary mechanism of claim 1, wherein the stub nut is coupled to drill rods of different specifications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228763.3A CN112228564A (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228763.3A CN112228564A (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN112228564A true CN112228564A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011228763.3A Pending CN112228564A (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
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| CN (1) | CN112228564A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400123A (en) * | 1973-02-07 | 1975-07-16 | Atlantic Richfield Co | Bearing assembly |
| CN103470527A (en) * | 2013-08-23 | 2013-12-25 | 芜湖市中天密封件有限公司 | Auto-boost mechanical seal for slurry pumps |
| CN103527076A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Top-driving-power faucet |
| CN203926782U (en) * | 2014-07-08 | 2014-11-05 | 黑龙江技师学院 | A kind of for the output shaft sealing device on rig swivel gear |
| CN203925352U (en) * | 2014-07-02 | 2014-11-05 | 西安斯克达机械制造有限公司 | Sluicing top, bent road anchor bores rotation water supply installation |
| CN204252854U (en) * | 2014-11-24 | 2015-04-08 | 神华集团乌达五虎山矿业有限责任公司 | Water filling drill rod connector |
| CN204827228U (en) * | 2015-06-08 | 2015-12-02 | 江苏德航工程机械装备有限公司 | Mud seals rotary mechanism |
| CN205036832U (en) * | 2015-10-12 | 2016-02-17 | 太原市卓力克科技有限公司 | Case is bored to XSZX -A wet -type |
| CN206158564U (en) * | 2016-09-19 | 2017-05-10 | 田胜利 | Hydraulic roofbolter abrasion drill case |
| CN107120269A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of double end-face mechanical sealing device with annular channel |
| CN206554787U (en) * | 2017-01-11 | 2017-10-13 | 河南铁福来装备制造股份有限公司 | One kind ventilation boring slewing equipment of water flowing moulded coal ore deposit |
| CN109340489A (en) * | 2018-12-13 | 2019-02-15 | 恒天九五重工有限公司 | A kind of wired and radio universal type rotary sealing appts |
| CN110273843A (en) * | 2019-08-06 | 2019-09-24 | 亚太泵阀有限公司 | A kind of submersible pump independence oil pocket sealing structure |
| CN111350825A (en) * | 2020-04-14 | 2020-06-30 | 廊坊景隆重工机械有限公司 | Mechanical seal formula drill box |
| CN213954347U (en) * | 2020-11-06 | 2021-08-13 | 神木市金承机械科技有限公司 | Wet-type drilling rotation mechanism |
-
2020
- 2020-11-06 CN CN202011228763.3A patent/CN112228564A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400123A (en) * | 1973-02-07 | 1975-07-16 | Atlantic Richfield Co | Bearing assembly |
| CN103470527A (en) * | 2013-08-23 | 2013-12-25 | 芜湖市中天密封件有限公司 | Auto-boost mechanical seal for slurry pumps |
| CN103527076A (en) * | 2013-11-04 | 2014-01-22 | 恒天九五重工有限公司 | Top-driving-power faucet |
| CN203925352U (en) * | 2014-07-02 | 2014-11-05 | 西安斯克达机械制造有限公司 | Sluicing top, bent road anchor bores rotation water supply installation |
| CN203926782U (en) * | 2014-07-08 | 2014-11-05 | 黑龙江技师学院 | A kind of for the output shaft sealing device on rig swivel gear |
| CN204252854U (en) * | 2014-11-24 | 2015-04-08 | 神华集团乌达五虎山矿业有限责任公司 | Water filling drill rod connector |
| CN204827228U (en) * | 2015-06-08 | 2015-12-02 | 江苏德航工程机械装备有限公司 | Mud seals rotary mechanism |
| CN205036832U (en) * | 2015-10-12 | 2016-02-17 | 太原市卓力克科技有限公司 | Case is bored to XSZX -A wet -type |
| CN206158564U (en) * | 2016-09-19 | 2017-05-10 | 田胜利 | Hydraulic roofbolter abrasion drill case |
| CN206554787U (en) * | 2017-01-11 | 2017-10-13 | 河南铁福来装备制造股份有限公司 | One kind ventilation boring slewing equipment of water flowing moulded coal ore deposit |
| CN107120269A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of double end-face mechanical sealing device with annular channel |
| CN109340489A (en) * | 2018-12-13 | 2019-02-15 | 恒天九五重工有限公司 | A kind of wired and radio universal type rotary sealing appts |
| CN110273843A (en) * | 2019-08-06 | 2019-09-24 | 亚太泵阀有限公司 | A kind of submersible pump independence oil pocket sealing structure |
| CN111350825A (en) * | 2020-04-14 | 2020-06-30 | 廊坊景隆重工机械有限公司 | Mechanical seal formula drill box |
| CN213954347U (en) * | 2020-11-06 | 2021-08-13 | 神木市金承机械科技有限公司 | Wet-type drilling rotation mechanism |
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