CN208718560U - Transmission device is driven on rig top, rig top is driven and rig - Google Patents
Transmission device is driven on rig top, rig top is driven and rig Download PDFInfo
- Publication number
- CN208718560U CN208718560U CN201821304096.0U CN201821304096U CN208718560U CN 208718560 U CN208718560 U CN 208718560U CN 201821304096 U CN201821304096 U CN 201821304096U CN 208718560 U CN208718560 U CN 208718560U
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- main shaft
- shaft
- segment
- axis hole
- cooperation
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 107
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 11
- 239000010687 lubricating oil Substances 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a heavy machinery technical field, concretely relates to transmission is driven on rig top, rig top is driven and rig. The utility model provides a top drive transmission device of a drilling machine, which comprises a driving motor, a transmission shaft and a top drive main shaft, a matching shaft hole is arranged in the transmission shaft, the cross section of the matching shaft hole is in a regular polygon shape, the cross section of the second section is matched with that of the matching shaft hole, the driving motor directly drives the top driving main shaft to rotate through the second section of the top driving main shaft and the matching shaft hole on the transmission shaft, compared with the prior top drive transmission device, the top drive transmission device is not provided with a reduction box and a lubricating device, has simple structure and can save cost, meanwhile, the problem of failure of the gear box caused by failure of the sealing of the gear reduction box, leakage of lubricating oil or poor heat dissipation of the lubricating oil due to worn scrap iron in the working process of the gear box is solved, the transmission stability of the transmission device is better, the service life is longer, the maintenance and maintenance period is long, and the maintenance and maintenance cost can be saved.
Description
Technical field
The utility model relates to heavy duty equipment technical fields, and in particular to a kind of drill top-drive transmission device, drilling machine
Top is driven and drilling machine.
Background technique
Top driving well drilling device is the cutting edge technology equipment of petroleum and geological drilling, it is that one kind can be direct in upper derrick
Drill string revolution is driven, and drives exclusive guideway along the top on derrick and send brill downwards, completes drill string revolution, circulating fluid, order
Root, the equipment for connecing the drillng operations such as thribble, upper button, shackle, reaming.Wherein top drive transmission device mostly uses greatly following form: dynamic
Power owner axis, which slows down to increase to distort by speed-changing gear box, to be output on the main shaft that top is driven, existing top drive transmission device, including
Gear-box and driving motor, driving motor are realized the driving that top is driven by gear-box, are accelerated in gear-box using 2 grades of gears
Mode realizes the transmission that top is driven；But gear-box needs to seal, sealing is vulnerable, causes lubricating oil to be missed, gear-box is caused to lose
It imitates, the iron filings worn in the gear-box course of work easily lead to lubricating oil failure, influence to radiate, cause gearbox failure.
Utility model content
(1) the technical problem to be solved by the utility model is to existing top drive transmission device is deposited using gearbox drive
The problem of gearbox failure causes entire transmission device to fail.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of drill top-drive transmission device, including driving electricity
Main shaft is driven on machine, transmission shaft and top, and the transmission shaft includes sequentially connected first segment, second segment and third section, the first segment
It is cylindric with third section；Cooperation axis hole is equipped in the transmission shaft, the cross sectional shape of the cooperation axis hole is regular polygon,
The cross sectional shape of the second segment is adapted with the cross sectional shape of the cooperation axis hole, and the transmission shaft and the driving motor pass
Dynamic connection；The top is driven main shaft and is inserted into the transmission shaft, and the cooperation shaft hole sleeve in the transmission shaft drives main shaft second segment on top
Outside, it is described top drive main shaft by second segment with it is described cooperate axis hole cooperation connect with the transmission shaft driven.
The utility model has the beneficial effects that drill top-drive transmission device provided by the utility model includes driving motor, passes
Main shaft is driven on moving axis and top, and the transmission shaft includes sequentially connected first segment, second segment and third section, is equipped in the transmission shaft
Cooperating axis hole, the cross sectional shape of the cooperation axis hole is regular polygon, and the transmission shaft and the driving motor are sequentially connected, and
The cross sectional shape of the second segment is adapted with the cross sectional shape of the cooperation axis hole, and the second segment that main shaft is driven on top can be with transmission
Cooperation axis hole in axis is driven cooperation, and driving motor rotation drives transmission shaft to rotate synchronously, cooperation axis hole and top on transmission shaft
The transmission cooperation of main shaft second segment is driven, and then drives top to drive main axis and does not configure deceleration compared with existing top drive transmission device
Case and lubricating arrangement, structure simply can save the cost, while also avoiding because of gear reduction box seal failure, oil leak
Or the iron filings worn in the gear-box course of work cause lubricating oil failure, radiate it is bad and caused by gearbox failure problem,
The transmission stability of transmission device is more preferable, and the service life is longer, and the maintenance period is long, can save maintenance cost, by
It is long in its maintenance period, therefore its service life is also longer, it is not necessary to often maintenance can be improved the work of well drilling top drive
Make efficiency.
Further, the transmission shaft be the driving motor electric machine main shaft, cooperation is equipped in the electric machine main shaft
Axis hole, the cooperation axis hole are set in the outside that main shaft second segment is driven on the top, and the top drives main shaft and passes through second segment and described
The cooperation and the electric machine main shaft for cooperating axis hole are sequentially connected.
Further, the transmission shaft include first rotating shaft and driving motor electric machine main shaft, the first rotating shaft and
The electric machine main shaft is sequentially connected and rotates synchronously, and the cooperation axis hole, the cooperation shaft hole sleeve are equipped in the first rotating shaft
Be located at it is described top drive main shaft second segment outside, it is described top drive main shaft by second segment and it is described cooperate axis hole cooperation with it is described
First rotating shaft transmission connection.
Further, institute's first rotating shaft is sequentially connected by shaft coupling and the electric machine main shaft.
Further, it is described cooperation axis hole cross sectional shape be regular hexagon.
Further, the cross sectional shape of the cooperation axis hole is regular pentagon.
The utility model additionally provides a kind of drill top-drive, including drill top-drive transmission device described in any of the above embodiments.
Further, the drilling machine top includes tap and protection connector, and the first segment and tap transmission connect
It connects, the third section and the protection connector are sequentially connected.
The utility model additionally provides a kind of drilling machine, including drill top-drive described above.
Detailed description of the invention
The advantages of the utility model is above-mentioned and/or additional aspect will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram that main shaft is driven on top described in the utility model；
Fig. 2 is the structural schematic diagram that main shaft and electric machine main shaft cooperation are driven in top in the utility model；
Fig. 3 is the cross-sectional view of drill top-drive described in the utility model；
Fig. 4 is the portion the A enlarged drawing of Fig. 3.
The corresponding relationship of appended drawing reference and component names in Fig. 1 to Fig. 4 are as follows:
1, top drive main shaft, 11, first segment, 12, second segment, 13, third section, 2, driving motor, 21, electric machine main shaft, 211,
Cooperate axis hole, 3, tap, 4, link hanger, 5, locknut, 6, protection connector.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
As depicted in figs. 1 and 2, the utility model provides a kind of drill top-drive transmission device, including driving motor 2, biography
Main shaft 1 is driven on moving axis and top, and the transmission shaft includes sequentially connected first segment 11, second segment 12 and third section 13, and described first
Section 11 and third section 13 are cylindric；Cooperation axis hole 211, the section shape of the cooperation axis hole 211 are equipped in the transmission shaft
Shape is regular polygon, and the cross sectional shape of the second segment 12 is adapted with the cross sectional shape of the cooperation axis hole 211, the transmission
Axis and the driving motor 2 are sequentially connected；The top is driven main shaft 1 and is inserted into the transmission shaft, the fitted shaft in the transmission shaft
The outside for driving 1 second segment 12 of main shaft is being pushed up in 211 sets of hole, and the top drives main shaft 1 and passes through second segment 12 and the cooperation axis hole 211
Cooperation is connect with the transmission shaft driven.
Drill top-drive transmission device provided by the utility model includes that main shaft 1 is driven on driving motor 2, transmission shaft and top, described
Transmission shaft includes sequentially connected first segment 11, second segment 12 and third section 13, and cooperation axis hole 211 is equipped in the transmission shaft,
The cross sectional shape of the cooperation axis hole 211 is regular polygon, and the transmission shaft and the driving motor 2 are sequentially connected, and described
The cross sectional shape of second segment 12 is adapted with the cross sectional shape of the cooperation axis hole 211, and the second segment 12 that main shaft 1 is driven on top can be with
Cooperation axis hole 211 in transmission shaft is driven cooperation, and the rotation of driving motor 2 drives transmission shaft to rotate synchronously, the cooperation on transmission shaft
Axis hole 211 and top are driven the transmission of 1 second segment 12 of main shaft and are cooperated, and then drive top to drive main shaft 1 and rotate, with existing top drive transmission device
Compare, do not configure reduction gearbox and lubricating arrangement, structure simply can save the cost, while also avoiding sealing because of gear reduction box
The iron filings worn in failure, oil leak or the gear-box course of work cause lubricating oil failure, radiate it is bad and caused by
The transmission stability of gearbox failure problem, transmission device is more preferable, and the service life is longer, and the maintenance period is long, can save
Maintenance cost, since its maintenance period is long, service life is also longer, it is not necessary to often maintenance, it can
Improve the working efficiency of well drilling top drive.
One embodiment according to the present utility model, as shown in Figure 3 and Figure 4, the transmission shaft are the driving motor 2
Electric machine main shaft 21, the electric machine main shaft 21 is interior to be equipped with the cooperation axis hole 211 that cross sectional shape is regular polygon, the cooperation axis hole
211 are set in the outside that 1 second segment 12 of main shaft is driven on the top, and the top is driven main shaft 1 and passed through in second segment 12 and electric machine main shaft 21
The transmission cooperation of axis hole 211 is cooperated to be sequentially connected with the electric machine main shaft 21, such driving motor 2 drives electric machine main shaft 21 to return
Turn, electric machine main shaft 21 drives top to drive the rotation of main shaft 1 by the cooperation for driving 1 second segment 12 of main shaft and cooperation axis hole 211 with top, realizes
Drive transmission in top；Compared with existing top drive transmission device, reduction gearbox and lubricating arrangement are not configured, structure can simply be saved into
This, while also avoiding the iron filings because wearing in gear reduction box seal failure, oil leak or the gear-box course of work
Cause lubricating oil failure, radiate it is bad and caused by gearbox failure problem, the transmission stability of transmission device is more preferable, uses the longevity
Order longer, the maintenance period is long, can save maintenance cost, since its maintenance period is long, uses week
Phase is also longer, it is not necessary to which often maintenance can be improved the working efficiency of well drilling top drive.
Another embodiment according to the present utility model, the transmission shaft include the motor of first rotating shaft and driving motor 2
Main shaft 21, the first rotating shaft and the electric machine main shaft 21 are sequentially connected and simultaneously rotate synchronously, the cooperation axis hole 211 be arranged
In the first rotating shaft, the cross sectional shape that the cross sectional shape and the cooperation axis hole 211 of 1 second segment 12 of main shaft are driven in the top is mutually fitted
Match, the cooperation axis hole 211 is set in the outside on top drive 1 second segment 12 of main shaft, and the top drives main shaft 1 and passes through second segment
12 cooperations with cooperation axis hole 211 and the first rotating shaft are sequentially connected.Driving motor 2 drives electric machine main shaft 21 to turn round, motor
Main shaft 21 drives first rotating shaft rotation by the transmission connection with first rotating shaft, and the cooperation axis hole 211 and top in first rotating shaft drive
The transmission connection of 1 second segment 12 of main shaft drives top to drive main shaft 1 and rotates, and then realizes that transmission is driven on top.Preferably, the electric machine main shaft 21
Be sequentially connected by shaft coupling and the first rotating shaft, for the torque of electric machine main shaft 21 transmit a first rotating shaft.
As depicted in figs. 1 and 2, it is regular hexagon that main shaft 1 and the cross sectional shape of the cooperation axis hole 211 are driven in the top,
Wherein the cross sectional shape in the fitted shaft hole 211 is interior regular hexagon, and it is outer that the cross sectional shape of 1 second segment 12 of main shaft is driven on the top
Regular hexagon realizes in transmission shaft that main shaft 1 the is driven on cooperation axis hole 211 and top by the cooperation of interior regular hexagon and outer regular hexagon
Two section 12 of transmission cooperation, wherein it is clearance fit, such energy that 1 second segment 12 of main shaft is driven with the cooperation axis hole 211 in the top
It is enough to be driven in the insertion cooperation axis hole 211 of main shaft 1 convenient for that push up, while the size of the cooperation axis hole 211 is tightly slightly larger than the top
The size for driving 1 second segment 12 of main shaft can prevent second segment 12 from occurring loosening and causing to be driven in cooperation axis hole 211 in this way
The problem of effect difference；Certain cooperation axis hole 211 described herein and top drive 1 second segment 12 of main shaft are also possible to interference and match
It closes, then top is driven in 1 second segment 12 of main shaft insertion cooperation axis hole 211 by modes such as hammer pressures, equally can be realized this reality
With novel design philosophy, the protection scope of the utility model should belong to.
It should be noted that the cross sectional shape of cooperation axis hole 211 described herein is also possible to other regular polygons, such as
Equilateral triangle, square, regular pentagon etc., as long as can be realized the cross sectional shape and top drive main shaft 1 the of cooperation axis hole 211
Two section 12 of shape is adapted, and top is driven main shaft 1 and connected by the transmission cooperation of cooperation axis hole 211 and second segment 12 and transmission shaft driven
The purpose connect just also can be realized the design philosophy of the utility model, should belong to the protection scope of the utility model.
Wherein as shown in Figure 1, the first segment 11 and the outer diameter of the third section 13 are less than the size of the second segment 12,
The external diameter of a circle of the specific second segment 12 is less than the outer diameter of the first segment 11 and third section 13, and this makes it possible to realities
Main shaft 1 now is driven on top to be inserted into the cooperation axis hole 211.The wherein outer diameter of first segment 11 described herein and third section 13
Outer diameter can be equal, is also possible to unequal, equally can be realized in the application second segment 12 and cooperation axis hole 211
With the purpose of transmission cooperation, objective should belong to the protection scope of the utility model without departing from the design philosophy of the utility model.
The utility model additionally provides a kind of drill top-drive, is driven and fills including drill top-drive described in any of the above-described embodiment
It sets, wherein the drilling machine top includes tap 3 and protection connector 6, the first segment 11 is sequentially connected with the tap 3, institute
It states third section 13 and the protection connector 6 is sequentially connected, wherein the third end that main shaft 1 is driven on the top passes through link hanger 4, use
5 locking of locknut, and connect with protection connector 6.
Well drilling top drive is the prior art, and wherein top-drive drilling has following main component and attachment to constitute: 1, water
Faucet-drill motor assembly (one of critical component)；2, motor bracket/fairlead assembly (one of critical component)；3, drilling rod
Upper shackle device assembly (one of critical component, it is the equipment for embodying top-drive drilling great advantage)；4, balance system
System；5, cooling system；6, top-drive drilling control system；7, available auxiliary device.
Wherein tap-drill motor assembly includes following main components: drill motor and brake (pneumatic brake) are whole
Tap；Balance.
Above-mentioned drill top-drive structure is the prior art, referring to Baidupedia, therefore its specific structure and connection relationship and sheet
The utility model point of application is unrelated, then repeats no more in this application.
Drill top-drive provided by the present application using drill top-drive transmission device described in above-described embodiment, therefore does not configure
Reduction gearbox and lubricating arrangement, structure simply can save the cost, while also avoiding because of gear reduction box seal failure, lubricating oil
In leakage or the gear-box course of work iron filings that wear cause lubricating oil failure, radiate it is bad and caused by gearbox failure ask
Topic, the transmission stability of transmission device is more preferable, and the service life is longer, and the maintenance period is long, can save maintenance cost,
Since its maintenance period is long, service life is also longer, it is not necessary to which often maintenance can be improved well drilling top drive
Working efficiency.
The utility model additionally provides a kind of drilling machine, including drill top-drive described in above-described embodiment.The utility model mentions
For the drilling machine of confession due to using the drill top-drive in above-described embodiment, stream time is longer, excessively left high-efficient, together
Shi Weixiu and maintenance period are long, being capable of surplus maintenance cost.
In conclusion drill top-drive transmission device provided by the utility model includes that master is driven on driving motor, transmission shaft and top
Axis, the transmission shaft include sequentially connected first segment, second segment and third section, and cooperation axis hole, institute are equipped in the transmission shaft
The cross sectional shape for stating cooperation axis hole is regular polygon, and the transmission shaft and the driving motor are sequentially connected, and the second segment
Cross sectional shape with it is described cooperation axis hole cross sectional shape be adapted, top drive main shaft second segment can be with the cooperation in transmission shaft
Axis hole transmission cooperation, driving motor rotation drive transmission shaft to rotate synchronously, and the cooperation axis hole and top on transmission shaft drive main shaft second
Duan Chuandong cooperation, and then top is driven to drive main axis, compared with existing top drive transmission device, reduction gearbox is not configured and lubrication fills
Set, structure simply can save the cost, while also avoiding because of gear reduction box seal failure, oil leak or gear-box
The iron filings worn in the course of work cause lubricating oil failure, radiate it is bad and caused by gearbox failure problem, transmission device
Transmission stability is more preferable, and the service life is longer, and the maintenance period is long, can save maintenance cost, due to its maintenance dimension
It is long to repair the period, therefore its service life is also longer, it is not necessary to which often maintenance can be improved the working efficiency of well drilling top drive.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be direct connection, can also by intermediary indirect communication,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of drill top-drive transmission device, it is characterised in that: drive main shaft, the transmission including driving motor, transmission shaft and top
Axis includes sequentially connected first segment, second segment and third section, and the first segment and third section are cylindric；
Cooperation axis hole is equipped in the transmission shaft, the cross sectional shape of the cooperation axis hole is regular polygon, and the second segment is cut
Face shape is adapted with the cross sectional shape of the cooperation axis hole, and the transmission shaft and the driving motor are sequentially connected；
The top is driven main shaft and is inserted into the transmission shaft, and the cooperation shaft hole sleeve in the transmission shaft drives the outer of main shaft second segment on top
Side, the top are driven main shaft and are connect with the cooperation of the cooperation axis hole with the transmission shaft driven by second segment.
2. drill top-drive transmission device according to claim 1, it is characterised in that: the transmission shaft is the driving motor
Electric machine main shaft, cooperation axis hole is equipped in the electric machine main shaft, the cooperation axis hole is set in the top and drives main shaft second segment
Outside, the top drive main shaft and are sequentially connected by the cooperation and the electric machine main shaft of second segment and the cooperation axis hole.
3. drill top-drive transmission device according to claim 1, it is characterised in that: the transmission shaft include first rotating shaft and
The electric machine main shaft of driving motor, the first rotating shaft and the electric machine main shaft are sequentially connected and rotate synchronously, the first rotating shaft
Interior to be equipped with the cooperation axis hole, the cooperation axis hole is set in the outside that main shaft second segment is driven on the top, and it is logical that main shaft is driven on the top
The cooperation and the first rotating shaft for crossing second segment and the cooperation axis hole are sequentially connected.
4. drill top-drive transmission device according to claim 3, it is characterised in that: the first rotating shaft by shaft coupling with
The electric machine main shaft transmission connection.
5. drill top-drive transmission device according to any one of claims 1 to 4, it is characterised in that: the cooperation axis hole
Cross sectional shape is regular hexagon.
6. drill top-drive transmission device according to any one of claims 1 to 4, it is characterised in that: the cooperation axis hole
Cross sectional shape is regular pentagon.
7. a kind of drill top-drive, it is characterised in that: including drill top-drive transmission device such as claimed in any one of claims 1 to 6.
8. drill top-drive according to claim 7, it is characterised in that: the drill top-drive includes that tap and protection connect
Head, the first segment and the tap are sequentially connected, and the third section and the protection connector are sequentially connected.
9. a kind of drilling machine, it is characterised in that: including drill top-drive as claimed in claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304096.0U CN208718560U (en) | 2018-08-14 | 2018-08-14 | Transmission device is driven on rig top, rig top is driven and rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304096.0U CN208718560U (en) | 2018-08-14 | 2018-08-14 | Transmission device is driven on rig top, rig top is driven and rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208718560U true CN208718560U (en) | 2019-04-09 |
Family
ID=65977492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821304096.0U Withdrawn - After Issue CN208718560U (en) | 2018-08-14 | 2018-08-14 | Transmission device is driven on rig top, rig top is driven and rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208718560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025797A (en) * | 2018-08-14 | 2018-12-18 | 北京探矿工程研究所 | Transmission device is driven on rig top, rig top is driven and rig |
-
2018
- 2018-08-14 CN CN201821304096.0U patent/CN208718560U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025797A (en) * | 2018-08-14 | 2018-12-18 | 北京探矿工程研究所 | Transmission device is driven on rig top, rig top is driven and rig |
| CN109025797B (en) * | 2018-08-14 | 2024-06-14 | 北京探矿工程研究所 | Drilling machine top drive transmission device, drilling machine top drive and drilling machine |
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Granted publication date: 20190409 Effective date of abandoning: 20240614 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190409 Effective date of abandoning: 20240614 |
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| AV01 | Patent right actively abandoned |