CN208939720U - A kind of direct-drive type top-drive motor - Google Patents
A kind of direct-drive type top-drive motor Download PDFInfo
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- CN208939720U CN208939720U CN201821617002.5U CN201821617002U CN208939720U CN 208939720 U CN208939720 U CN 208939720U CN 201821617002 U CN201821617002 U CN 201821617002U CN 208939720 U CN208939720 U CN 208939720U
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Abstract
The utility model discloses a kind of direct-drive type top-drive motors, including base, main shaft, the lower cover that base lower end is arranged in and the promotion cabinet that base upper end is arranged in, it is provided with stator in base, is provided with rotor in stator, the main shaft is arranged in rotor, and is connect with rotor；The both ends of main shaft, which are each passed through, promotes cabinet and lower cover, the lower end of main shaft is connect by bearing A with lower cover, bearing B and bearing C are disposed in lift tank body from top to bottom, and main shaft is connect with bearing B and bearing C respectively, the utility model compared with the electronic top of common high speed AC frequency conversion is driven, have that drilling well performance is good, starting is steady, eliminates gearbox, overload capacity is strong, while having simplified structure, high reliability.
Description
Technical field
The utility model relates to oil exploration equipment technical field more particularly to a kind of direct-drive type top-drive motors.
Background technique
In petroleum industry field, common electric top, which is driven, has many using gear reduction system, sealing and lubrication etc.
Problem is driven as recent domestic enterprise constantly develops novel top, just there is that one is in order to reduce tooth in these equipments
The top-drive drilling of roller box, referred to as straight top of driving are driven, and drilling equipment directly drives top and drives, and is directly driven using single motor.
The reliability that its execute-in-place is driven on existing common top is low, complete machine structure is not compact, bulk is big, and there are reduction gearbox drivers
Structure, fault point is more, high failure rate, reliability are low.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of direct-drive type top-drive motors.
Specifically, a kind of direct-drive type top-drive motor, including base, main shaft, the lower cover that base lower end is arranged in and setting
Promotion cabinet in base upper end is provided with stator and rotor in base, and the main shaft is arranged in rotor, and solid with rotor
Fixed connection；The both ends of main shaft, which are each passed through, promotes cabinet and lower cover, and the lower part of main shaft is connect by bearing A with lower cover, is mentioned
It rises in cabinet and is disposed with bearing B and bearing C from top to bottom, and main shaft is connect with bearing B and bearing C respectively.
The rotor is connected with rotor field spider, and central tube is provided on main shaft, and rotor field spider passes through expansion set and central tube
Connection.
The bearing A is tapered roller bearing, and axis B is cylinder roller bearing, and bearing C is tapered roller thrust bearing.
The rotor and stator upper end is respectively arranged with rotor pressing ring and stator pressing ring.
Stator punching, the stator pressing ring of the stator are provided with axial ventilation hole and Radial ventilation duct.
Rotor punching, the rotor pressing ring of the rotor are respectively provided with axial ventilation hole and Radial ventilation duct.
Blower is provided on the base.
The lower cover is provided with air inlet.
The rotor end ring of the rotor uses arc-like sheet, the completely circular structure being combined into.
The utility model has the beneficial effects that: the utility model does not need the fortune that mechanical deceleration device realizes 0-220rpm
Row revolving speed, and compared with the electronic top of common high speed AC frequency conversion is driven, direct driving motor driving top is driven has that drilling well performance is good, starting
Steadily, gearbox is eliminated, the unique advantages such as overload capacity is strong, while having that simplified structure, index be advanced, adaptable, warp
The good, high reliablity of Ji property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
1- blower, 2- bearing B, 3- main shaft, 4- rotor pressing ring, 5- stator pressing ring, 6- base, 7- rotor field spider, 8- in figure
Central tube, 9- conducting bar, 10- rotor end ring, 11- stator coil, 12- lower cover, 13- bearing A, 14- expansion set screw, 15- expansion set,
16- rotor core, 17- stator, 18- rotor, 19- terminal box, 20- promote cabinet, 21- bearing C.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
The volume of motor and effective material utilization amount are directly proportional with torque, so driving ontology using motor body and top
Weight is reduced by the design concept of Space integration, structure fusion, function fusion to reduce volume.For this low speed high torque
The characteristics of direct driving motor, proposes design requirement more to motor body structure.It is mainly reflected in the following:
(1) body construction Combined design is driven on motor and top
As shown in Figure 1, a kind of direct-drive type top-drive motor, including base 6, is arranged in the lower cover 12 of 6 lower end of base and sets
Set the promotion cabinet 20 in 6 upper end of base.The sky in whole circumference direction around top drive main shaft can symmetrically be utilized using straight drive
Between；Then the upper end cover that promotion cabinet and motor are driven in top is unified into Integration Design；The shaft of motor is coaxial with top drive main shaft, on
Terminate washing pipe assembly, lower termination drill string；Shelves followed by are opened greatly using derrick, sufficiently carry out spatial integration utilization, such motor
Unit Weight can make bigger torque, improve the torque density of motor.Additionally, due to using its volume weight of direct driving motor
Measure more much larger than traditional motor, so the allowance of mechanical strength is very big, thermal capacity is also very big, and the overload capacity of motor is just very
By force.Over torque needed for generating the button that jumps just is not required to increase manufacturing cost.Also, blower 1 is provided on base 6, set there are two.
(2) bearing assembling structure of top-drive motor is directly driven
As shown in Figure 1, the motor further includes main shaft 3, it is provided with stator 17 in base 6, is provided with rotor 18 in stator 17,
Rotor 18 and 17 upper end of stator are respectively arranged with rotor pressing ring 4 and stator pressing ring 5.The main shaft 3 is arranged in rotor 18, and
It is connect with rotor 18；The both ends of main shaft 3, which are each passed through, promotes cabinet 20 and lower cover 12, the lower part of main shaft 3 by bearing A13 with
Lower cover 12 connects, and is promoted in cabinet 20 and is disposed with bearing B2 and bearing C21 from top to bottom, and main shaft 3 respectively with bearing
B2 is connected with bearing C21.The bearing A13 is anti-jump bearing, specifically, bearing A13 is tapered roller bearing；Bearing B2 is
The alignment bearing driven is pushed up, specifically, bearing B2 is cylinder roller bearing；Bearing C21 is thrust bearing, transmits drill string weight, tool
Body, bearing C21 is tapered roller thrust bearing.
(3) the bulging joining sleeve coupling structure of motor rotor rack and shaft
As shown in Figure 1, the rotor 18 is connected with rotor field spider 7, central tube 8, rotor field spider 7 are provided on main shaft 3
It is connect by expansion set 15 with central tube 8.Expansion set 15 uses external mounting structure, and inner sleeve, housing are in the expansion set screw being axially arranged
Under the action of 14 pretightning forces, the normal pressure that Cone fit face generates makes rotor center pipe shrink compression main shaft, and relies on static friction
Power transmits torque.
(4) rotor is using a kind of end ring structure for reducing asynchronous motor cage rotor temperature rise
The research of rotor radiator structure, since motor speed reduces, the heat-sinking capability decline of rotor, it is necessary to innovative design mouse
Basket structure.Mouse cage temperature is reduced, mouse cage intensity is improved.Rotor with new structure end ring uses arc-like sheet layered structure, is handed over using tooth socket
The arc-like sheet of mistake distribution, the completely circular structure being combined into amount to 4 layers, i.e., accumulate by four arc plates and be combined into a full circle.Increase
Mouse cage heat dissipation area, effectively reduces rotor temperature rise.
Main parts size structure:
1) stator
Stator winding is molding double-layer lap winding.Molding stator coil 11 imbeds in stator slot.In order to obtain enough
Mechanical strength, good electric property and excellent thermal stability, stator winding end binds with tied rope, motor overall vacuum
Pressure immersion varnish VPI, the class of insulation of entire motor are H grades.After motor dipping lacquer, three-phase windings lead to terminal box 18 with copper bar,
Terminal box 18 is fixed on base 6.
1.1 stator cores, base
Stator core 17 is folded by the full circle piece of the high-quality cold-rolled silicon iron punching of 0.5mmDW470-50 (W18).Stator
Punching and stator pressing ring 5 are provided with axial ventilation hole and Radial ventilation duct.Hot jacket is in base 6 after rear of core is tensed with 16 pull rods
It is interior.Base 6 is welded-steel plate construction.
1.2 armature coil
Each coil 11 is formed by the F46 film wire coiling that 5 circle specifications are 2-2.15 × 9.5, straight line portion imines
Film half repeatedly wraps, and end imines film and mica paper tape half repeatedly wrap, and outsourcing insulation is using the flat packet of alkali-free glass silk ribbon.
2 lower covers
Lower cover 12 is cast steel ZG230-450, and end cap offers ventilation hole, and cooling air enters motor from end cap air inlet hole
Inside is finally excluded via 1 air outlet of blower by rotor ventilating air passage.
3 rotors
Rotor arranges conducting bar 9 using fine copper ladder, and four layers of copper sheet weld end ring 10, effectively expand the radiating surface of entire mouse cage
Product.Mouse cage temperature can be reduced, its intensity is improved, prolongs its service life.
3.1 rotor core
Rotor core 16 is overrided to form by 0.5mmDW470-50 (W18) high-quality cold-reduced silicon sheet, and 16 back of rotor core is used
Hot jacket is on rotor field spider 7 after 8 pull rods tense.In order to improve the heat dissipation of rotor, axial direction is provided in rotor pressing ring 4 and punching
Ventilation hole and Radial ventilation duct substantially increase rotor heat-sinking capability.
3.2 rotor cage windings
Rotor cage winding uses trapezoidal Cu-alloy conducting bar 9, after 9 insertion groove of rotor bar, by conducting bar tensioner and be fixed on
In slot.Rotor bar 9 and 4 layer rotor end ring 10 is firm with TIG weld, forms cage rotor.
Motor is cooling using forced ventilation, and two blowers 1 are vertical to be installed on 6 surface of base, brings out wind in stator on line
Hole site.Cooling air by lower cover 12 air inlet hole enter, by 17 back of stator, air gap, rotor Radial ventilation duct and
Axial ventilation hole flows into motor upper end, is flowed out by 1 air outlet of blower.Shell protection the grade IP44, type of cooling IC06 of motor.
The main shaft 3 of motor is coaxial with top drive main shaft 3, and upper end bearing C21 transmits drill string weight mounted in being promoted in cabinet 20,
Motor lower cover 12 is equipped with the common supporting motor rotor 18 of bearing A13, and rotor 18 is fixedly connected simultaneously by expansion set 15 and main shaft 3
Torque is transmitted, driving drilling rod is directly crept into.The motor is for the phase asynchronous squirrel-cage motor of direct-drive type frequency control.Using bavin
The power supply of the power supply units such as oily generating set, supplies the electricity through the adjustable three-phase alternating current of current transformer commutation inversion output voltage frequency
Machine uses, this directly drives top-drive motor and directly drives main shaft drilling, and motor is moved up and down with tourist bus during operation.The master of motor
Axis 3 is coaxial with top drive main shaft, and upper termination washing pipe assembly, lower termination drill string eliminates reduction gearbox, using without mechanical gear machine
Structure.
Claims (9)
1. a kind of direct-drive type top-drive motor, which is characterized in that including base (6), main shaft (3), be arranged under base (6) lower end
In the promotion cabinet (20) of base (6) upper end, base (6) is interior to be provided with stator (17) and rotor (18) for end cap (12) and setting；
The both ends of main shaft (3), which are each passed through, promotes cabinet (20) and lower cover (12), and the lower part of main shaft (3) passes through bearing A(13) under
End cap (12) connection, is promoted in cabinet (20) and is disposed with bearing B(2 from top to bottom) and bearing C(21), and main shaft (3) point
It is not connect with bearing B(2) and bearing C(21).
2. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that the rotor (18), which is connected with, to be turned
Submounts (7) are provided with central tube (8) on main shaft (3), and rotor field spider (7) is connect by expansion set (15) with central tube (8).
3. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that the bearing A(13) it is circular cone
Roller bearing, bearing B(2) be cylinder roller bearing, bearing C(21) it is tapered roller thrust bearing.
4. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that the rotor (18) and stator
(17) upper end is respectively arranged with rotor pressing ring (4) and stator pressing ring (5).
5. a kind of direct-drive type top-drive motor according to claim 4, which is characterized in that the stator of the stator (17) rushes
Piece, stator pressing ring (5) are provided with axial ventilation hole and Radial ventilation duct.
6. a kind of direct-drive type top-drive motor according to claim 4, which is characterized in that the rotor of the rotor (18) rushes
Piece, rotor pressing ring (4) are respectively provided with axial ventilation hole and Radial ventilation duct.
7. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that be provided on the base (6)
Blower (1).
8. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that the lower cover (12) is provided with
Air inlet.
9. a kind of direct-drive type top-drive motor according to claim 1, which is characterized in that the rotor end ring of the rotor (18)
(10) arc-like sheet, the completely circular structure being combined into are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821617002.5U CN208939720U (en) | 2018-09-30 | 2018-09-30 | A kind of direct-drive type top-drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821617002.5U CN208939720U (en) | 2018-09-30 | 2018-09-30 | A kind of direct-drive type top-drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208939720U true CN208939720U (en) | 2019-06-04 |
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ID=66723434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821617002.5U Active CN208939720U (en) | 2018-09-30 | 2018-09-30 | A kind of direct-drive type top-drive motor |
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| Country | Link |
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| CN (1) | CN208939720U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242240A (en) * | 2019-06-27 | 2019-09-17 | 四川宏华石油设备有限公司 | A kind of washing pipe device |
| CN111691817A (en) * | 2020-07-29 | 2020-09-22 | 东营市汉德自动化集成有限公司 | Direct-drive type electric top drive for well drilling |
-
2018
- 2018-09-30 CN CN201821617002.5U patent/CN208939720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242240A (en) * | 2019-06-27 | 2019-09-17 | 四川宏华石油设备有限公司 | A kind of washing pipe device |
| CN111691817A (en) * | 2020-07-29 | 2020-09-22 | 东营市汉德自动化集成有限公司 | Direct-drive type electric top drive for well drilling |
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