CN2637697Y - Petroleum drilling machine rotary table driving device - Google Patents
Petroleum drilling machine rotary table driving device Download PDFInfo
- Publication number
- CN2637697Y CN2637697Y CN 03276034 CN03276034U CN2637697Y CN 2637697 Y CN2637697 Y CN 2637697Y CN 03276034 CN03276034 CN 03276034 CN 03276034 U CN03276034 U CN 03276034U CN 2637697 Y CN2637697 Y CN 2637697Y
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- CN
- China
- Prior art keywords
- rotating disk
- motor
- drive
- frequency
- electric network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a drive device for the rotating disk of an oil well rig and is composed of a diesel generating set, an electric network and a rotating disk. The diesel generating set is connected with a first electric network, which is connected with a rectifying and inverting cabinet; the rectifying and inverting cabinet is connected with a second electric network; the other end of the second electric network is connected with an AC frequency conversion motor, which is connected with the rotating disk. The utility model rectifies the alternating current generated by the generator into direct current, which is then converted to frequency-adjustable alternating current to drive the AC frequency control motor to provide mechanical energy to drive the rotating disk. The utility model is characterized in that a total numerically-controlled AC frequency-conversion device is used as the power device to drive the rotating disk; as the motor adopted is a frequency conversion AC asynchronous motor, the flame resistance and reliability of which is better than that of a DC motor; also the motor needs less repair and has long service life, high power factor, small harmonic current and wide speed range.
Description
Technical field the utility model belongs to a kind of oil-well drilling equipment, particularly a kind of oil-well rig turntable drive unit.
Background technology is present, and the power drive of oil-well rig turntable can be divided into Mechanical Driven, dc powered two big classes.Mechanical Driven is by the power taking of boring winch speed end, through two bevel gear boxes up and down, climb the platform universal drive shaft power is input to the catworks speed-changing chain case that is installed on the rig floor, and after universal drive shaft drives the rotating disk rotation; Dc powered is to drive the rotating disk rotation by dc motor through chain reduction box and universal drive shaft.Mechanical Driven rotating-table apparatus complex structure, actuated element is many, efficient is low, the requirement that the rotating disk speed adjustable range is narrow, operation is inconvenient, can not satisfy drillng operation well.Dc powered has the software feature of stepless speed regulation, and is easy and simple to handle.But dc powered also has its intrinsic shortcoming, this as, explosion-proof performance is poor, maintenance load is big, power factor is low during low-speed running, harmonic current is big etc.
The summary of the invention the purpose of this utility model provides a kind of simple in structure, and explosion-proof performance is good, and maintenance capacity is few, the power factor height, and harmonic current is little, the oil-well rig turntable drive unit that slewing range is wide.
For achieving the above object, solution of the present utility model is: a kind of oil-well rig turntable drive unit, form by diesel generating set, electrical network, rotating disk, described diesel generating set is connected with power first electrical network, described first electrical network is connected with the commutation inversion cabinet, described commutation inversion cabinet also is connected with second electrical network, and the other end of described second electrical network is connected with alternating-current variable frequency motor, and described alternating-current variable frequency motor is connected with rotating disk.
The alternating current that the utility model utilizes generator to send becomes direct current through over commutation, through inverter the alternating current that direct current becomes frequency adjustable is driven the ac variable frequency speed regulation motor again, is converted into mechanical energy and drives disk operation.Its special character is the power set that adopt digital control AC frequency control apparatus to drive as rotating disk, because what adopt is the frequency-changing AC asynchronous machine, its explosion-proof performance and reliability all are better than dc motor, maintenance capacity is few, long service life, the power factor height, harmonic current is little, slewing range is wide, is a kind of desirable rotating disk Power Drive Unit.Because rotating disk drive device has utilized present state-of-the-art alternating frequency conversion technique, makes rotating disk obtain best speed governing service behaviour, rotary speed is stepless adjustable, and permanent moment of torsion output is high, permanent power input range is wide and level and smooth.Rotary speed is minimum to zero rev/min, reach as high as 300 rev/mins, the digital speed governing of driller personnel, control and monitor fast slow running arbitrarily, react fast, easy to operate, satisfy the requirement of the complicated drilling technology in various down-holes, improve ability and the flexibility of handling down-hole accident, improved reliability, safety, the economy of oil-well rig.
Description of drawings Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment as shown in Figure 1, a kind of oil-well rig turntable drive unit described in the utility model, its described diesel generating set 1 is connected with power first electrical network 2, the alternating current that described diesel generating set 1 sends by the input of first electrical network 2 and first electrical network 2 in the commutation inversion cabinet 3 that is connected, become direct current through over commutation, direct current is become the alternating current of frequency adjustable through inverter, the alternating current of this frequency adjustable, be input in the alternating-current variable frequency motor 5 that is connected with the other end of described second electrical network 4 by second electrical network 4 that is connected with described commutation inversion cabinet 3 again, drive described alternating-current variable frequency motor 5, described alternating-current variable frequency motor 5 is converted into mechanical energy with electric energy and drives rotating disk 6 work that are connected with alternating-current variable frequency motor 5.
Claims (1)
1. oil-well rig turntable drive unit, form by diesel generating set, electrical network, rotating disk, it is characterized in that: described diesel generating set (1) is connected with power first electrical network (2), described first electrical network (2) is connected with commutation inversion cabinet (3), described commutation inversion cabinet (3) also is connected with second electrical network (4), the other end of described second electrical network (4) is connected with alternating-current variable frequency motor (5), and described alternating-current variable frequency motor (5) is connected with rotating disk (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03276034 CN2637697Y (en) | 2003-07-09 | 2003-07-09 | Petroleum drilling machine rotary table driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03276034 CN2637697Y (en) | 2003-07-09 | 2003-07-09 | Petroleum drilling machine rotary table driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637697Y true CN2637697Y (en) | 2004-09-01 |
Family
ID=34302257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03276034 Expired - Lifetime CN2637697Y (en) | 2003-07-09 | 2003-07-09 | Petroleum drilling machine rotary table driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637697Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554779A (en) * | 2021-02-22 | 2021-03-26 | 中铁长安重工有限公司 | Rock soil layer drilling exploration equipment for engineering construction |
-
2003
- 2003-07-09 CN CN 03276034 patent/CN2637697Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554779A (en) * | 2021-02-22 | 2021-03-26 | 中铁长安重工有限公司 | Rock soil layer drilling exploration equipment for engineering construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130709 Granted publication date: 20040901 |