CN213954347U - Wet-type drilling rotation mechanism - Google Patents
Wet-type drilling rotation mechanism Download PDFInfo
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- CN213954347U CN213954347U CN202022543049.5U CN202022543049U CN213954347U CN 213954347 U CN213954347 U CN 213954347U CN 202022543049 U CN202022543049 U CN 202022543049U CN 213954347 U CN213954347 U CN 213954347U
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Abstract
The utility model discloses a wet drilling slewing mechanism, which comprises a shell and a revolving shaft penetrating through a central through hole of the shell, wherein the shell adopts an inner wall step-shaped cylindrical structure with inner diameters of two ends larger than the middle inner diameter, a radial water inlet hole is arranged at the middle inner diameter of the shell, a radial water through hole is arranged on the revolving shaft, and a mechanical sealing mechanism communicating the radial water inlet hole and the radial water through hole is arranged between the revolving 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 utility model discloses a to the casing inner wall improvement, make its installation that satisfies mechanical seal mechanism, wear-resisting, hinder hourglass effectual to make things convenient for the dismouting of accessory, it is convenient to overhaul, and mechanical efficiency improves greatly.
Description
Technical Field
The utility model relates to a rig field especially relates to a wet-type drilling rotation 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.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a 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 maintains simply, conveniently to overcome current wet-type drilling rotation mechanism's not enough.
In order to solve the technical problem, the utility model provides a wet drilling rotation mechanism, including casing and the revolving axle that runs through casing central through hole, revolving axle one end is used for being connected with power motor, and its other end is connected with spindle nose nut, the casing adopts the inner wall step form drum structure that the both ends internal diameter is greater than middle internal diameter, the middle internal diameter department of casing is equipped with radial inlet hole, with the radial inlet hole corresponding be equipped with radial limbers on the revolving axle, radial limbers with the centre bore of revolving axle communicates, be equipped with the mechanical seal mechanism who communicates radial inlet hole and radial limbers between revolving axle and the casing;
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 utility model discloses following advantage has at least:
the utility model discloses an improve current rotation mechanism's shells inner wall, make it satisfy and set up mechanical seal mechanism between casing and revolving axle, two terminal surfaces that utilize mechanical seal mechanism's perpendicular to axle to be relative slip keep the laminating and be equipped with supplementary sealed under elasticity or magnetic force compensation effect, reach the bearing seal structure that hinders leaking, realize the zero wearing and tearing of revolving axle and sealed rotating ring, it is sealed effectual, the slip terminal surface is stand wear and tear, make rotation mechanism life increase substantially. 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 means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic sectional view of a wet drilling and turning mechanism according to the present invention.
Fig. 2 is an overall plan view of the wet drilling slewing mechanism of the present invention.
Fig. 3 is a schematic end view of the wet drill slewing 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 utility model discloses the slot structure has been saved inside rotation mechanism's casing, adopts the step form drum structure that the both ends internal diameter is slightly big, has both reduced the processing degree of difficulty and the machining precision of revolving axle, and convenient dismantlement and accessory are changed again. 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 of description and simplification of description, but do not indicate or imply that the device or element referred to 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning 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 preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the 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 |
|---|---|---|---|
| CN202022543049.5U CN213954347U (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022543049.5U CN213954347U (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
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| CN213954347U true CN213954347U (en) | 2021-08-13 |
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| CN202022543049.5U Active CN213954347U (en) | 2020-11-06 | 2020-11-06 | Wet-type drilling rotation mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228564A (en) * | 2020-11-06 | 2021-01-15 | 神木市金承机械科技有限公司 | Wet-type drilling rotation mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228564A (en) * | 2020-11-06 | 2021-01-15 | 神木市金承机械科技有限公司 | Wet-type drilling rotation mechanism |
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Effective date of registration: 20220817 Address after: Room 1216, Unit 1, 14th Floor, Building 1, No. 3, Rongjing East Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 100000 Patentee after: Beijing Shaker Technology Co., Ltd. Address before: 719300 houliuta village, Daliuta Town, Shenmu City, Yulin City, Shaanxi Province Patentee before: Shenmu Jincheng Machinery Technology Co.,Ltd. |