CN218183136U - Bearing lubrication system for top drive spindle - Google Patents
Bearing lubrication system for top drive spindle Download PDFInfo
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- CN218183136U CN218183136U CN202221736166.6U CN202221736166U CN218183136U CN 218183136 U CN218183136 U CN 218183136U CN 202221736166 U CN202221736166 U CN 202221736166U CN 218183136 U CN218183136 U CN 218183136U
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- box body
- top drive
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- 238000005461 lubrication Methods 0.000 title claims abstract description 28
- 239000000725 suspension Substances 0.000 claims description 22
- 239000003921 oil Substances 0.000 description 48
- 230000001050 lubricating effect Effects 0.000 description 37
- 239000004519 grease Substances 0.000 description 30
- 238000003860 storage Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 7
- 239000012208 gear oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a bearing lubrication system for main shaft is driven on top, include: the box body is lifted, a first bearing chamber is arranged below the lifting box body, a bearing is arranged in the first bearing chamber, a box body cover is arranged on the lifting box body, a second bearing chamber is arranged at the center of the box body cover, an anti-bouncing bearing is arranged in the second bearing chamber, and an upper transparent cover is arranged on the box body cover; the top drive main shaft penetrates through the lifting box body; the permanent magnet motor is sleeved on the top drive main shaft, is positioned below the lifting box body and is fixedly connected with the top drive main shaft through an inner taper sleeve; the motor lower end cover is positioned on one side of the permanent magnet motor, which is far away from the lifting box body, and is provided with a third bearing chamber, and an upper centering bearing is arranged in the third bearing chamber; the observation windows are circumferentially arranged on the side wall of the first bearing chamber; and the oil filling cups are circumferentially arranged on the side wall of the first bearing chamber and are arranged at intervals with the observation window. The operation is simple and convenient, the cost is reduced, and the economical efficiency is improved.
Description
Technical Field
The utility model relates to a bearing lubrication technical field especially relates to a bearing lubrication system for top drives main shaft.
Background
The top driving drilling device of the permanent magnet synchronous motor is a drilling device which directly drives a drilling tool to perform rotary drilling from the top of a derrick by power and completes various drilling operations such as circulating drilling fluid, connecting an upright post, screwing in and screwing out, and the like.
Existing lubrication systems are generally divided into two categories: one is oil lubrication and the other is grease lubrication. In the traditional lubricating mode of the former top drive, gear oil is adopted for lubrication, a hydraulic source (a lubricating oil pump) is needed for conveying the gear oil to a bearing through a hydraulic pipeline, the lubricating oil pump provides power to enable the gear oil to circularly flow in the top drive, the condition that the temperature of the gear oil is too high when the gear oil is in a static state for a long time is prevented, impurities are easily stored at the bottom of the gear oil, the lubricating and protecting effects of the bearing cannot be well achieved, the cost is too high, and meanwhile leakage is easily caused by long-time use of the hydraulic pipeline, and the environment is polluted; and the traditional lubricating system has a complex process, a plurality of gear oil passages need to be drilled in the reduction box body, and when the top drive is maintained, a large amount of manpower, time efficiency and economic cost can be consumed for cleaning the oil passages.
Therefore, a bearing lubricating system for the top drive spindle needs to be developed, the operation is simple and convenient, time and labor are saved, a large number of oil ducts are not required to be processed in a bearing cavity, the process is simple, the bearing can be lubricated by grease lubrication, the cost is reduced, and the economy is improved.
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.
In view of this, the utility model provides a bearing lubrication system for top drive main shaft, bearing lubrication system includes:
the lifting box body is provided with a first bearing chamber below, a bearing is arranged in the first bearing chamber, a box body cover is arranged on the lifting box body, a second bearing chamber is arranged at the center of the box body cover, an anti-bouncing bearing is arranged in the second bearing chamber, and an upper transparent cover is arranged on the box body cover;
the top drive main shaft penetrates through the lifting box body;
the permanent magnet motor is sleeved on the top drive spindle and located below the lifting box body, and the permanent magnet motor is fixedly connected with the top drive spindle through an inner taper sleeve;
the motor lower end cover is positioned on one side of the permanent magnet motor, which is far away from the lifting box body, and is provided with a third bearing chamber, and an upper centering bearing is arranged in the third bearing chamber;
the observation windows are circumferentially arranged on the side wall of the first bearing chamber;
and the oil filling cups are circumferentially arranged on the side wall of the first bearing chamber, and are arranged at intervals with the observation window.
Further, the bearing lubrication system further comprises:
the suspension body is arranged below the motor lower end cover, one end of the suspension body, which deviates from the motor lower end cover, is provided with a fourth bearing chamber, a lower righting bearing is arranged in the fourth bearing chamber, and the top drive main shaft penetrates through the suspension body.
Furthermore, one end of the suspension body, which is close to the lower end cover of the motor, is provided with a first oil duct, one end of the first oil duct is communicated with the third bearing chamber, and the other end of the first oil duct is provided with an oil filling cup.
Furthermore, a second oil duct is arranged at one end of the suspension body, which is far away from the lower end cover of the motor, one end of the second oil duct is communicated with the fourth bearing chamber, and an oil filling cup is arranged at the other end of the second oil duct.
Further, an air storage chamber is arranged above the fourth bearing chamber, the air storage chamber is annular, a channel is arranged on the suspension body, the air storage chamber is communicated with the outside through the channel, and an air discharge mechanism is arranged in the channel.
Furthermore, a third oil duct penetrates through the upper transparent cover and the box body cover, one end of the third oil duct is communicated with the second bearing chamber, and an oil filling cup is arranged at the other end of the third oil duct.
The utility model provides a technical scheme can include following beneficial effect:
the bearing lubricating system does not need an additional power unit (pump) and an additional debugging of workers, directly installs the bearing, and arranges lubricating grease in the bearing chamber, so that the bearing lubricating system is simple and convenient to operate, time-saving and labor-saving, a large number of oil ducts do not need to be processed in the bearing cavity, the process is simple, and the processing cost is reduced; the lubricating oil is not needed, the bearing can be lubricated by adopting the lubricating grease, the cost of a bearing lubricating system can be saved, the economy is improved, and the natural environment can be protected.
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.
Figure 1 shows a schematic view of a bearing lubrication system for a top drive spindle according to the present invention;
FIG. 2 shows an enlarged view at A of FIG. 1;
FIG. 3 shows an enlarged view at B of FIG. 1;
FIG. 4 shows an enlarged view at C of FIG. 1;
FIG. 5 shows an enlarged view at D of FIG. 1;
FIG. 6 shows an enlarged view at E of FIG. 1;
FIG. 7 shows an enlarged view at F of FIG. 1;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:
the device comprises a top drive main shaft 1, a lifting box body 2, a bearing 3, a permanent magnet motor 4, a motor lower end cover 5, a centering bearing on a motor 6, a suspension body 7, a centering bearing under a motor 8, an oil filling cup 9, a second oil duct 10, a first oil duct 11, a third oil duct 12, a first bearing chamber 13, a jump-proof bearing 14, a box body cover 15, a transparent cover on a box body 16, a gas storage chamber 17, a channel 18, an air discharge mechanism 19 and an observation window 20.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations 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
Figure 1 shows a schematic view of a bearing lubrication system for a top drive spindle according to the present invention; FIG. 2 shows an enlarged view at A of FIG. 1; fig. 3 shows an enlarged view at B of fig. 1.
As shown in fig. 1 to 3, the present embodiment provides a bearing lubrication system for a top drive spindle, the bearing lubrication system including:
the lifting box body 2 is lifted, a first bearing chamber 13 is arranged below the lifting box body 2, a bearing 3 is arranged in the first bearing chamber 13, a box body cover 15 is arranged on the lifting box body 2, a second bearing chamber is arranged at the center of the box body cover 15, an anti-bouncing bearing 14 is arranged in the second bearing chamber, and an upper transparent cover 16 is arranged on the box body cover 15;
the top drive main shaft 1 penetrates through the lifting box body 2;
the permanent magnet motor 4 is sleeved on the top drive spindle 1, the permanent magnet motor 4 is positioned below the lifting box body 2, and the permanent magnet motor 4 is fixedly connected with the top drive spindle 1 through an inner taper sleeve;
the motor lower end cover 5 is positioned on one side, away from the lifting box body 2, of the permanent magnet motor 4, the motor lower end cover 5 is provided with a third bearing chamber, and an upper righting bearing 6 is arranged in the third bearing chamber;
a plurality of observation windows 20 circumferentially provided on a side wall of the first bearing chamber 13;
and the oil filling cups 9 are circumferentially arranged on the side wall of the first bearing chamber 13, and the oil filling cups 9 are arranged at intervals with the observation window 20.
Specifically, the taper sleeve in the permanent magnet motor 4 and the stepped top drive spindle 1 are in interference fit through hot fitting, and then the taper sleeve is driven by a rotor in the permanent magnet motor 4 to drive the top drive spindle 1 to rotate, so that rotary drilling is realized.
The bearing lubricating system does not need an additional power unit (pump) and an additional debugging of workers, directly installs the bearing, and arranges lubricating grease in the bearing chamber, so that the bearing lubricating system is simple and convenient to operate, time-saving and labor-saving, a large number of oil ducts do not need to be processed in the bearing cavity, the process is simple, and the processing cost is reduced; the lubricating oil is not needed, the lubricating of the bearing can be realized by adopting the lubricating grease, the self cost of a bearing lubricating system can be saved, the economy is improved, and the natural environment can be protected.
It should be noted that, through the arrangement of the bearing chamber, a lubricating space can be provided for the bearing 3, the anti-jump bearing 14 and the upper centering bearing 6, so that the lubricating grease can fully cover each bearing, and the bearings are fully lubricated.
Wherein, promote 2 tops of box and drive to be connected with the top, be equipped with the endoscope in observation window 20, this endoscope is (CEM) BS-150 endoscope that the prosperous and prosperous technologies industry ltd produced, can observe the in service behavior of bearing 3 lubricating grease through the endoscope, if bearing 3 is in long-time operation, the volume of lubricating grease can reduce, can look over the condition of lubricating grease liquid level through the camera lens of endoscope, if lubricating grease reduces, can inject lubricating grease into first bearing room 13 through oiling cup 9, guarantee that lubricating grease can fully cover bearing 3 constantly.
Further, the bearing lubrication system further comprises:
the suspension body 7 is arranged below the motor lower end cover 5, one end, deviating from the motor lower end cover 5, of the suspension body 7 is provided with a fourth bearing chamber, a lower righting bearing 8 is arranged in the fourth bearing chamber, and the top drive main shaft 1 penetrates through the suspension body 7.
The lower part of the suspension body 7 is connected to a drill.
Fig. 4 shows an enlarged view at C of fig. 1.
As shown in fig. 4, one end of the suspension body 7 close to the lower end cover 5 of the motor is provided with a first oil passage 11, one end of the first oil passage 11 is communicated with the third bearing chamber, and the other end of the first oil passage 11 is provided with an oil cup 9.
Fig. 5 shows an enlarged view at D of fig. 1.
As shown in fig. 5, one end of the suspension body 7 away from the lower end cover 5 of the motor is provided with a second oil passage 10, one end of the second oil passage 10 is communicated with the fourth bearing chamber, and the other end of the second oil passage 10 is provided with an oil filling cup 9.
It should be noted that the upper centering bearing 6 and the lower centering bearing 8 need to be maintained once every 3 months, that is, about 50ml of grease is injected into the oil cup 9 at one end of the first oil passage 11 and the oil cup 9 at one end of the second oil passage 10 for lubrication every three months, which belongs to regular maintenance, so that the observation window 20 does not need to be arranged, which is related to the installation requirement of the bearings.
Fig. 6 shows an enlarged view at E of fig. 1.
As shown in fig. 6, an air storage chamber 17 is arranged above the fourth bearing chamber, the air storage chamber 17 is annular, a channel 18 is arranged on the suspension body 7, the channel 18 communicates the air storage chamber 17 with the outside, and an air discharge mechanism 19 is arranged in the channel 18.
It should be noted that, due to the installation requirement, the lower centering bearing 8 in the fourth bearing chamber is installed more tightly, the lower centering bearing 8 generates heat during the rotation process, then the lubricating grease is melted to generate gas (and part of the gas brought by the lubricating grease), and the gas stays in the fourth bearing chamber to cause expansion and push the seal open, so that the lubricating grease leaks and the normal use of the bearing lubrication system is affected, therefore, the gas storage chamber 17 and the channel 18 are required to be arranged, so that the gas in the fourth bearing chamber is conveniently discharged, and the normal operation of the lower centering bearing 8 is ensured, wherein the principle of the air discharge mechanism 19 is similar to that of a one-way valve, and only the gas can be discharged outwards, and the outside air cannot enter the fourth bearing chamber.
It should be further noted that the gas in the third bearing chamber can be transmitted into the box of the permanent magnet motor 4 to realize gas discharge; the second bearing chamber and the first bearing chamber 13 are both provided with exhaust passages, because the first bearing chamber 13 and the second bearing chamber control the generation of gas through the oil filling amount, namely, a small amount of lubricating grease needs to be added gradually to meet the lubricating requirement, and because the added lubricating grease is less, the generated gas can be reduced, the first bearing chamber 13 and the second bearing chamber cannot be influenced, and therefore, the exhaust passages are not additionally added.
Fig. 7 shows an enlarged view at F of fig. 1.
As shown in fig. 7, the third oil passage 12 is provided through the upper transparent cover 16 and the case cover 15, one end of the third oil passage 12 communicates with the second bearing chamber, and the other end of the third oil passage 12 is provided with the oil cup 9.
Wherein, the third oil passage 12 is used for lubricating the anti-jump bearing 14, so as to ensure the lubricating effect of each bearing.
It should be noted that in this embodiment, only the outer wall of the first bearing chamber 13 of the load bearing 3 is provided with four oil cups 9 and oil filling passages, the remaining second bearing chamber of the anti-jump bearing 14, the third bearing chamber of the upper righting bearing 6 and the fourth bearing chamber of the lower righting bearing 8 are both provided with two oil cups 9 and oil filling passages, because the load bearing 3 is the most important bearing which plays a bearing role, when the top drive works on site, the four oil cups 9 and the observation window 20 are more convenient for the worker to maintain the load bearing 3, that is, can be maintained at any position, and the rest of the bearings are bearings which are maintained regularly, and it is only necessary to provide two oil cups 9.
Example 2
This example specifically illustrates the installation steps of a bearing lubrication system for a top drive spindle:
firstly, lubricating grease is coated on the anti-jump bearing 14, the bearing 3, the upper righting bearing 6 and the lower righting bearing 8, the bearing 3 is firstly installed in the first bearing chamber 13 through the upper opening of the lifting box body 2, then the box body cover 15 is installed, then the anti-jump bearing 14 is installed in the second bearing chamber in the box body cover 15, the transparent cover 16 is fixedly installed, it needs to be described that the lubricating grease is coated in the first bearing chamber 13 and the second bearing chamber, the lubricating grease can be gradually reduced along with the rotation of the bearing, a certain amount of lubricating grease is reserved in the bearing chamber, and the lubricating effect of the bearing is improved and the frequency of injecting the lubricating grease is reduced.
Then the top drive main shaft 1 is penetrated into the upper lifting box body 2, grease is injected into the first bearing chamber 13 and the second bearing chamber, the grease covers 2/3 of the bearing rolling body, the liquid level condition of the grease in the first bearing chamber 13 can be observed through the observation window 20 and an endoscope in the observation window after the operation, and the grease can be injected through the grease injection cup 9 after the liquid level of the grease is reduced.
After the permanent magnet motor 4 is matched and connected with the lifting box body 2 and the top drive main shaft 1, the box body of the permanent magnet motor 4 is sealed through the motor lower end cover 5, and meanwhile, a righting bearing 6 is installed in the third bearing chamber.
And the lower centering bearing 8 is installed in a fourth bearing chamber of the suspension body 7, and then the suspension body 7 with the lower centering bearing 8 is connected with the lower end cover 5 of the motor in a matching way.
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 will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings 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 (6)
1. A bearing lubrication system for a top drive spindle, the bearing lubrication system comprising:
the lifting box body is provided with a first bearing chamber below, a bearing is arranged in the first bearing chamber, a box body cover is arranged on the lifting box body, a second bearing chamber is arranged at the center of the box body cover, an anti-bouncing bearing is arranged in the second bearing chamber, and an upper transparent cover is arranged on the box body cover;
the top drive main shaft penetrates through the lifting box body;
the permanent magnet motor is sleeved on the top drive spindle and located below the lifting box body, and the permanent magnet motor is fixedly connected with the top drive spindle through an inner taper sleeve;
the motor lower end cover is positioned on one side, away from the lifting box body, of the permanent magnet motor, and is provided with a third bearing chamber, and an upper righting bearing is arranged in the third bearing chamber;
the observation windows are circumferentially arranged on the side wall of the first bearing chamber;
and the oil filling cups are circumferentially arranged on the side wall of the first bearing chamber, and are arranged at intervals with the observation window.
2. The bearing lubrication system for a top drive spindle of claim 1 further comprising:
the suspension body is arranged below the motor lower end cover, one end of the suspension body, which deviates from the motor lower end cover, is provided with a fourth bearing chamber, a lower righting bearing is arranged in the fourth bearing chamber, and the top drive main shaft penetrates through the suspension body.
3. The bearing lubrication system for the top drive spindle according to claim 2, wherein a first oil passage is provided on one end of the suspension body close to the motor lower end cover, one end of the first oil passage is communicated with the third bearing chamber, and an oil cup is provided on the other end of the first oil passage.
4. The bearing lubrication system for a top drive spindle according to claim 2, wherein a second oil passage is provided on an end of the suspension body facing away from the lower end cover of the motor, one end of the second oil passage communicates with the fourth bearing chamber, and an oil cup is provided on the other end of the second oil passage.
5. The bearing lubrication system for a top drive spindle according to claim 4, wherein an air reservoir is provided above the fourth bearing chamber, the air reservoir is annular, a passage is provided in the suspension body, the passage communicates the air reservoir with the outside, and an air discharge mechanism is provided in the passage.
6. The bearing lubrication system for the top drive main shaft according to any one of claims 1 to 5, wherein a third oil passage is provided through the upper transparent cover and the box cover, one end of the third oil passage is communicated with the second bearing chamber, and the other end of the third oil passage is provided with an oil cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221736166.6U CN218183136U (en) | 2022-07-05 | 2022-07-05 | Bearing lubrication system for top drive spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221736166.6U CN218183136U (en) | 2022-07-05 | 2022-07-05 | Bearing lubrication system for top drive spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218183136U true CN218183136U (en) | 2022-12-30 |
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ID=84612086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221736166.6U Active CN218183136U (en) | 2022-07-05 | 2022-07-05 | Bearing lubrication system for top drive spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218183136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595560A (en) * | 2024-01-19 | 2024-02-23 | 河北亿泰克轴承有限公司 | Bearing assembly and motor |
-
2022
- 2022-07-05 CN CN202221736166.6U patent/CN218183136U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595560A (en) * | 2024-01-19 | 2024-02-23 | 河北亿泰克轴承有限公司 | Bearing assembly and motor |
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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: Bearing lubrication system for top drive spindle Effective date of registration: 20230605 Granted publication date: 20221230 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 | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20221230 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023210000131 |
|
| 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: Bearing lubrication system for top drive spindle Granted publication date: 20221230 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2024210000059 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |