CN214367630U - Top drive reduction gearbox - Google Patents
Top drive reduction gearbox Download PDFInfo
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- CN214367630U CN214367630U CN202023267838.7U CN202023267838U CN214367630U CN 214367630 U CN214367630 U CN 214367630U CN 202023267838 U CN202023267838 U CN 202023267838U CN 214367630 U CN214367630 U CN 214367630U
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Abstract
The utility model relates to a reduction box is driven on top, including the box with set up the case lid on the box, drive unit's input shaft sets up in the box, and the input shaft passes through transmission and is connected with the main shaft in the box, and the main shaft is connected with the drilling rod, and the reduction box is driven on top still includes sealing device, and sealing device includes: the inner sleeve is sleeved on the main shaft and positioned at one end of the main shaft far away from the transmission device, and the inner sleeve is fixedly connected with the box body; the outer oil retaining ring is sleeved on the main shaft and positioned above the inner sleeve; the inner oil retainer ring comprises an inner ferrule and an outer ferrule, the outer ferrule is positioned at one end of the inner ferrule, a stepped accommodating space is formed between the outer ferrule and the inner ferrule, the inner ferrule is arranged on the upper end face of the inner sleeve, and the outer oil retainer ring extends into the stepped accommodating space; the rotating framework oil seal is arranged in the stepped accommodating space and is positioned between the outer oil retaining ring and the inner oil retaining ring. The sealing damage can be reduced, the leakage of lubricating oil of the reduction gearbox is avoided, and the service life of the equipment is prolonged.
Description
Technical Field
The utility model relates to an oil drilling equipment technical field especially relates to a reduction box is driven on top.
Background
The TOP drive is called TOP drive drilling device TDS (TOP DRIVE DRILLING SYSTEM) and is a TOP drive drilling system which is successively developed in the recent 20 years in America, France and Norway, can directly rotate a drill rod from the upper space of a derrick, and feed the drill rod downwards along a special guide rail to complete various drilling operations such as drill rod rotation drilling, drilling fluid circulation, upright post connection, upper shackle and back reaming, the TOP drive drilling device obviously improves the capacity and efficiency of the drilling operation, becomes a standard product in the oil drilling industry, is developed since the beginning of the 20 th century 80 years, has been developed into the most advanced integral TOP drive drilling device IDS (INTEGRATED TOP DRIVE DRILLING SYSTEM), and is one of the outstanding phase results of automatic development and updating of current drilling equipment.
The reduction box constitutional unit is the indispensable important drive disk assembly in the top drive drilling equipment, in the used reduction box structure of device is driven on the top at present, adopt second grade gear drive structure, gear lubrication uses lubricating oil to spray and soak lubrication, the sealed skeleton oil blanket that adopts of lubricating oil of reduction box, relative rotation between skeleton oil blanket and the rotatory epaxial wear-resisting cover of main, produce the friction, form the dynamic seal effect through the skeleton oil blanket, the reduction box of this kind of structural style is sealed, sealed effect mainly depends on skeleton oil blanket sealing washer, under complicated drilling operating mode, if the skeleton oil blanket became invalid, then can directly lead to the seepage of lubricating oil, influence the lubricated effect of the internal gear of reduction box, the life of reduction gear.
Therefore, it is necessary to develop a top drive reduction gearbox, which can reduce the damage of the seal, avoid the leakage of the lubricating oil of the reduction gearbox, and further improve the service life of the equipment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model provides a reduction box is driven on top.
In view of this, the utility model provides a reduction gear box is driven on top, the reduction gear box is driven on top includes the box and sets up in case lid on the box, drive unit's input shaft set up in the box, the input shaft pass through transmission with main shaft in the box is connected, the main shaft is connected with the drilling rod, the reduction gear box is driven on top still includes sealing device, sealing device includes:
the inner sleeve is sleeved on the main shaft and is positioned at one end, far away from the transmission device, of the main shaft;
the outer oil blocking ring is sleeved on the main shaft and is positioned above the inner sleeve;
the inner oil retainer ring comprises an inner ferrule and an outer ferrule, the outer ferrule is positioned at one end of the inner ferrule, a stepped accommodating space is formed between the outer ferrule and the inner ferrule, the inner ferrule is arranged on the upper section surface of the inner sleeve, the inner ferrule is sleeved outside the main shaft, and the outer oil retainer ring extends into the stepped accommodating space;
and the rotating framework oil seal is arranged in the stepped accommodating space and is positioned between the outer oil retainer ring and the outer ring.
Further, the outer diameter of the inner sleeve is in interference fit with the box body.
Further, the transmission device includes:
a primary pinion gear disposed on the input shaft;
the gear shaft is arranged in the box body, the primary large gear is arranged at the upper part of the gear shaft, and the primary large gear is meshed with the primary small gear;
the secondary pinion is arranged on the gear shaft and positioned below the primary bull gear;
and the secondary bull gear is sleeved on the main shaft and meshed with the secondary pinion.
Further, the primary pinion, the primary gearwheel, the secondary pinion and the secondary gearwheel are all helical gears.
Furthermore, a third bearing is sleeved outside the lower part of the gear shaft, and the third bearing is a self-aligning roller bearing.
Further, the top drive reduction gearbox further comprises:
the bearing base plate is fixedly connected with the box body, the bearing base plate is sleeved on the main shaft, and the bearing base plate is positioned below the secondary bull gear;
the first bearing is arranged between the bearing backing plate and the main shaft.
Further, the first bearing is a tapered roller thrust bearing.
Further, the main shaft is connected with the box cover through a second bearing.
Further, the driving unit is an alternating current variable frequency motor.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the sealing performance of the top drive reduction gearbox can be improved through the arrangement of the sealing device, the leakage of lubricating oil is avoided, the use of sealing rubber parts in the box body is reduced, the reliability of the box body is improved, the size of the top drive reduction gearbox can be more compact through the arrangement of the transmission device, the lubricating performance is improved, the use amount of lubricating oil is reduced, the transmission torque of the top drive reduction gearbox is increased through the arrangement of the secondary gear reduction, and the noise pollution is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic view of a top drive reduction gearbox according to an embodiment of the present invention;
fig. 2 shows a schematic view of a sealing device according to an embodiment of the invention;
fig. 3 shows a schematic view of a transmission according to an embodiment of the invention;
fig. 4 shows a schematic diagram of a lubrication fluid circulation path according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the oil seal structure comprises a box body 1, a first-level pinion gear 2, a first-level bull gear 3, a gear shaft 4, a box cover 5, a second-level bull gear 6, a first bearing 7, a main shaft 8, an outer oil retainer 9, an inner oil retainer 10, an inner sleeve 11, a bearing backing plate 12, a rotating framework oil seal 13, a driving unit 14, a second bearing 15, a third bearing 16, a second-level pinion gear 17, a heat dissipation oil pool 18 and a storage oil pool 19.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
Fig. 1 shows a schematic view of a top drive reduction gearbox according to an embodiment of the present invention; fig. 2 shows a schematic view of a sealing device according to an embodiment of the invention.
As shown in fig. 1 and fig. 2, this embodiment provides a top drive reduction gearbox, and the top drive reduction gearbox includes box 1 and the case lid 5 that sets up on box 1, and the input shaft of drive unit 14 sets up in box 1, and the input shaft passes through box 1 internal gear and is connected with the main shaft 8 in the box 1, and main shaft 8 is connected with the drilling rod, and the top drive reduction gearbox still includes sealing device, and sealing device includes:
the inner sleeve 11 is sleeved on the main shaft 8, and the inner sleeve 11 is positioned at one end, far away from the transmission device, of the main shaft 8;
the outer oil deflector ring 9 is sleeved on the main shaft 8, and the outer oil deflector ring 9 is positioned above the inner sleeve 11;
the inner oil retainer ring 10 comprises an inner ferrule and an outer ferrule, the outer ferrule is positioned at one end of the inner ferrule, a stepped accommodating space is formed between the outer ferrule and the inner ferrule, the inner ferrule is arranged on the upper end face of the inner sleeve 11, the inner ferrule is sleeved on the spindle 8, and the outer oil retainer ring 9 extends into the stepped accommodating space;
and the rotating framework oil seal 13 is arranged in the stepped accommodating space, and the rotating framework oil seal 13 is positioned between the outer oil retainer ring 9 and the outer ring.
The labyrinth seal is suitable for a high-rotation-speed working environment, belongs to non-contact seal, does not need lubrication, is suitable for high-temperature and high-pressure occasions, allows thermal expansion, has low power consumption, does not need lubrication of lubricating oil, reduces the using amount of the lubricating oil, does not need an additional cooling device, lightens the quality of a top drive reduction gearbox, is simple to maintain, and has long service life if the manufacturing, assembling and running modes are reasonable, and further prolongs the service life of equipment.
Further, the outer diameter of the inner sleeve 11 is in interference fit with the case 1.
Still set up the sealing washer between endotheca 11 and box 1, play the effect of dual fail-safe, can further avoid the seepage of lubricated fluid, improve the operational reliability of top drive reducing gear box.
Fig. 3 shows a schematic view of a transmission according to an embodiment of the invention.
As shown in fig. 3, the transmission device includes:
a primary pinion 2 provided on the input shaft;
the gear shaft 4 is arranged in the box body 1, the primary gearwheel 3 is arranged on the upper part of the gear shaft 4, and the primary gearwheel 3 is meshed with the primary pinion 2;
the secondary pinion 17 is arranged on the gear shaft 4, and the secondary pinion 17 is positioned below the primary gearwheel 3;
and the secondary bull gear 6 is sleeved on the main shaft 8, and the secondary bull gear 6 is meshed with the secondary pinion 17.
Through the twice gear transmission of the first-level pinion 2, the first-level gearwheel 3, the second-level gear shaft 4 and the second-level gearwheel 6, on one hand, the rotating speed of an output shaft transmitted to the main shaft 8 can be reduced, output power capable of meeting drilling requirements is provided, on the other hand, the torque of the output shaft on the main shaft 8 can be increased, and noise pollution is reduced.
The two-stage reduction gears are used as a transmission device, so that the size of the top drive reduction box is more compact, the lubricating performance is improved, and the filling amount of lubricating oil can be reduced.
Further, the primary pinion 2, the primary bull gear 3, the secondary pinion 17, and the secondary bull gear 6 are all bevel gears.
The helical gear is suitable for the high-speed heavily loaded operational environment, has better bearing capacity, improves the job stabilization nature of top drive reducing gear box, can increase of service life, and the structure of helical gear is compacter, and then makes the structure of top drive reducing gear box compacter, and lubricating property increases, can reduce the filling volume of lubricated fluid, and in addition, helical gear transmission is steady, and impact, vibration and noise are less.
Further, a third bearing 16 is sleeved on the lower portion of the gear shaft 4, and the third bearing 16 is a self-aligning roller bearing.
The third bearing 16 can ensure that the gear shaft 4 rotates stably, and the stability and reliability of the top drive reduction gearbox are improved, wherein the self-aligning roller bearing can bear radial load and also can bear bidirectional bearing directional load, has larger radial bearing capacity and also has the function of aligning, and can ensure that the gear shaft 4 rotates stably.
The top drive reducing gear box still includes:
the bearing backing plate 12 is fixedly connected with the box body 1, the bearing backing plate 12 is sleeved on the main shaft 8, and the bearing backing plate 12 is positioned below the secondary gearwheel 6;
the first bearing 7 is arranged between the bearing backing plate 12 and the main shaft 8.
Further, the first bearing 7 is a tapered roller thrust bearing.
The tapered roller thrust bearing can bear heavy axial load, is insensitive to impact load, has good rigidity and can prolong the service life of the top drive reduction gearbox.
Further, the main shaft 8 is connected with the box cover 5 through a second bearing 15.
Through the setting of second bearing 15, can make main shaft 8 internal rotation in box 1, and do not take place the friction with case lid 5, can improve the job stabilization nature and the life of top drive reducing gear box.
Further, the driving unit 14 is an ac inverter motor.
The alternating-current variable-frequency motor has the advantages of small radial size, high power output precision, good controllability, high power factor and large maximum output torque, and further the service life of the top drive reduction gearbox is prolonged.
Example 2
Fig. 4 shows a schematic diagram of a lubrication fluid circulation path according to an embodiment of the present invention.
As shown in fig. 4, the box body 1 and the box cover 5 are filled with lubricating oil, and a circulating oil path is used, when the lubricating oil circulates, the lubricating oil is pumped out from a storage oil pool by a lubricating oil pump, the first-level pinion 2, the first-level gearwheel 3, the gear shaft 4, the second-level pinion 17, the second-level gearwheel 6 and the bearing are lubricated through the lubricating oil path and then fall back to a heat dissipation oil pool 18, the lubricating oil in the upper heat dissipation oil pool 18 in the box body 1 circularly flows into the storage oil pool 19 at the lower part of the box body 1 through a thrust tapered roller bearing the load of the main shaft 8 and a bearing base plate 12, the temperature rise of the lubricating oil in the gear box can be effectively reduced, the quality of the lubricating oil is improved, and the lubricating requirement of a top drive reduction box is met.
Specifically, lubricating oil is pumped out from a storage oil pool 19 of the box body 1 by a lubricating oil pump and enters a circulating oil path of the box body 1 and a box cover 5, oil outlets of the lubricating oil are arranged at a first-level pinion 2, a first-level gearwheel 3, a gear shaft 4, a second-level pinion 17, a second-level gearwheel 6 and a bearing of the circulating oil path, spraying lubrication can be performed, the lubricating oil flowing out in a spraying mode falls back to an upper radiating oil pool 18 in the box body 1, the lubricating oil in the radiating oil pool 18 circularly flows into the storage oil pool 19 at the lower part of the box body 1 through a tapered roller thrust bearing a main shaft 8 and a bearing base plate 12, and reciprocating circulation is performed through the lubricating oil pump.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (9)
1. The utility model provides a reduction box is driven on top, the reduction box is driven on top includes the box and sets up in case lid on the box, drive unit's input shaft set up in the box, the input shaft pass through transmission with main shaft in the box is connected, the main shaft is connected with the drilling rod, its characterized in that, the reduction box is driven on top still includes sealing device, sealing device includes:
the inner sleeve is sleeved on the main shaft and positioned at one end of the main shaft far away from the transmission device, and the inner sleeve is fixedly connected with the box body;
the outer oil blocking ring is sleeved on the main shaft and is positioned above the inner sleeve;
the inner oil retainer ring comprises an inner ferrule and an outer ferrule, the outer ferrule is positioned at one end of the inner ferrule, a stepped accommodating space is formed between the outer ferrule and the inner ferrule, the inner ferrule is arranged on the upper end face of the inner sleeve, the inner ferrule is sleeved on the spindle, and the outer oil retainer ring extends into the stepped accommodating space;
and the rotating framework oil seal is arranged in the stepped accommodating space and is positioned between the outer oil retainer ring and the outer ring.
2. The top drive reduction gearbox according to claim 1, wherein the outer diameter of the inner sleeve is in interference fit with the box body.
3. The top drive reduction gearbox of claim 1, wherein the transmission comprises:
a primary pinion gear disposed on the input shaft;
the gear shaft is arranged in the box body, the primary large gear is arranged at the upper part of the gear shaft, and the primary large gear is meshed with the primary small gear;
the secondary pinion is arranged on the gear shaft and positioned below the primary bull gear;
and the secondary bull gear is sleeved on the main shaft and meshed with the secondary pinion.
4. The top drive reduction gearbox of claim 3, wherein the primary pinion gear, the primary bull gear, the secondary pinion gear and the secondary bull gear are all helical gears.
5. The top drive reduction gearbox according to claim 3, wherein a third bearing is sleeved on the lower portion of the gear shaft, and the third bearing is a self-aligning roller bearing.
6. The top drive reduction gearbox of claim 3, further comprising:
the bearing base plate is fixedly connected with the box body, the bearing base plate is sleeved on the main shaft, and the bearing base plate is positioned below the secondary bull gear;
the first bearing is arranged between the bearing backing plate and the main shaft.
7. The top drive reduction gearbox of claim 6, wherein the first bearing is a tapered roller thrust bearing.
8. The top drive reduction gearbox according to any one of claims 1 to 7, wherein the main shaft is connected with the box cover through a second bearing.
9. A top drive reduction gearbox according to any one of claims 1 to 7, wherein the drive unit is an AC variable frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267838.7U CN214367630U (en) | 2020-12-30 | 2020-12-30 | Top drive reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267838.7U CN214367630U (en) | 2020-12-30 | 2020-12-30 | Top drive reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367630U true CN214367630U (en) | 2021-10-08 |
Family
ID=77949797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023267838.7U Active CN214367630U (en) | 2020-12-30 | 2020-12-30 | Top drive reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367630U (en) |
-
2020
- 2020-12-30 CN CN202023267838.7U patent/CN214367630U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Top drive reducer Effective date of registration: 20220516 Granted publication date: 20211008 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2022210000043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230601 Granted publication date: 20211008 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2022210000043 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Top drive gearbox Effective date of registration: 20230605 Granted publication date: 20211008 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023210000131 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |