CN202322165U - Low-speed and large-torque motor-based direct-driven winch control system - Google Patents
Low-speed and large-torque motor-based direct-driven winch control system Download PDFInfo
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- CN202322165U CN202322165U CN2011204043968U CN201120404396U CN202322165U CN 202322165 U CN202322165 U CN 202322165U CN 2011204043968 U CN2011204043968 U CN 2011204043968U CN 201120404396 U CN201120404396 U CN 201120404396U CN 202322165 U CN202322165 U CN 202322165U
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Abstract
The utility model relates to a low-speed and large-torque motor-based direct-driven winch control system. A winch system in a lift system of a petroleum drilling machine at present has the disadvantages that the structure is complicated, the failure rate of a reduction box is relatively higher, and the failure rate of a required hydraulic system and the failure rate of a required pneumatic system are also higher. A direct-driven winch provided by the utility model comprises a low-speed and large-torque motor, a drum, a load and a disk brake, wherein the low-speed and large-torque motor is connected with the drum; the drum is connected with the load through a steel wire rope and a roller; the upper side face of the roller is provided with the disk brake. The control system comprises a coder, a frequency converter and a programmable logic controller (PLC) control console, wherein the coder is connected with the non-driven side of the low-speed and large-torque motor; the frequency converter is respectively connected with the PLC control console, the coder and the low-speed and large-torque motor; and the PLC control console is connected with the disk brake. According to the low-speed and large-torque motor-based direct-driven winch control system, as the motor is the direct-driven drum, a speed changing box or a lubrication pump and the like is not needed for a drilling machine system by applying the control system, the fault points of a drilling machine are further reduced, and thereby, the reliability of the whole system is increased.
Description
Technical field
The utility model relates to a kind of direct-drive winch control system based on the low-speed big motor.
Background technology
Hoister system in the oil-well rig elevator system is made up of through the drop-gear box head roll electrical motor at present; DC motor is controlled by direct current SCR; Alternating-current motor/AC motor is to control by exchanging VFD; Shortcoming is a complex structure, and the drop-gear box fault rate is higher relatively, and required hydraulic efficiency pressure system and pneumatic system failure rate are also higher.
The utility model content
The technical matters that the utility model solved provides under a kind of extremely low frequency also can guarantee good static state and dynamic performance index, satisfies the direct-drive winch control system based on the low-speed big motor that the control of winch requires fully.
For solving above-mentioned technical matters, the technical scheme that the utility model is taked:
A kind of direct-drive winch control system based on the low-speed big motor; Its special character is: comprise direct-drive winch, control system, described direct-drive winch comprises that low-speed big motor, cylinder, load, dish stop, and the low-speed big motor is connected with cylinder; Cylinder is connected with load with roller through steel rope; The roller upper side is provided with dish and stops, and control system comprises coder, frequency converter, PLC control desk, and coder is connected with the non-drive side of low-speed big motor; Frequency converter connects PLC control desk, coder, low-speed big motor respectively, and the PLC control desk is stopped with dish and is connected.
The PLC of above-mentioned PLC control desk 7 adopts Siemens S7-300/400.
Above-mentioned frequency converter adopts Siemens S120 series.
Compared with prior art; The motor of the utility model has high pulling torque, slow-revving characteristics, need not increase drop-gear box at drive end and just can satisfy the winch requirement, because motor is the direct drive cylinder; So the application of this system is for borer system; Reduce change speed gear box and lubricating pump etc., and then the trouble point of having reduced rig, thereby improved the reliability of total system.Characteristic to low speed, high pulling torque motor; Select Siemens SINAMICS S120 Series Frequency Converter to control; This frequency converter has the better controlling performance to control low speed, high pulling torque motor; Under extremely low frequency, also can guarantee good static state and dynamic performance index, satisfy the control requirement of winch fully.
Description of drawings
Fig. 1 is that the direct-drive winch of the utility model connects block diagram;
Fig. 2 is the control system block diagram of the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
Referring to Fig. 1,2; The utility model comprises direct-drive winch, control system, and described direct-drive winch comprises low-speed big motor 1, cylinder 2, load 3, coils and stop 4, and low-speed big motor 1 is connected with cylinder 2; Cylinder 2 is connected with load 3 with roller through steel rope; Roller 2 upper sides are provided with dish and stop 4, and control system comprises coder 5, frequency converter 6, PLC control desk 7, and coder 5 is connected with the non-drive side of low-speed big motor 1; Frequency converter 6 connects PLC control desk 7, coder 5, low-speed big motor 1 respectively, and PLC control desk 7 and dish are stopped and 4 be connected.
Above-mentioned PLC control desk 7 is accepted the status signal of frequency converter, gives frequency converter 6 transmitting control commands, and PLC adopts Siemens S7-300/400.
Above-mentioned frequency converter 6 adopts Siemens S120 series.
Use operating process:
1. connecting motor and cylinder, terminal pad stops and cylinder.
2. installation motor encoder connects the cable of control desk to the cable of frequency converter, frequency converter to coder, the frequency converter cable to motor respectively.
3. whether the check control system wiring is correct, and whether the hydraulic pressure dish pipeline of stopping is correct.
4. system energising trail run, whether the instrument of check control platform and frequency converter, indicator lamp show correct.
5. carry out winch control and coil the control of stopping at operator's station.
6. above-mentionedly can carry out operation after normal.
Claims (3)
1. direct-drive winch control system based on the low-speed big motor; It is characterized in that: comprise direct-drive winch, control system; Described direct-drive winch comprises low-speed big motor (1), cylinder (2), load (3), coils stop (4); Low-speed big motor (1) is connected with cylinder (2), and cylinder (2) is connected with load (3) with roller through steel rope, and roller (2) upper side is provided with and coils stop (4); Control system comprises coder (5), frequency converter (6), PLC control desk (7); Coder (5) is connected with the non-drive side of low-speed big motor (1), and frequency converter (6) connects PLC control desk (7), coder (5), low-speed big motor (1) respectively, PLC control desk (7) stop with dish (4) be connected.
2. a kind of direct-drive winch control system based on the low-speed big motor according to claim 1 is characterized in that: the PLC of described PLC control desk (7) adopts Siemens S7-300/400.
3. a kind of direct-drive winch control system based on the low-speed big motor according to claim 1 and 2 is characterized in that: described frequency converter (6) adopts Siemens S120 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204043968U CN202322165U (en) | 2011-10-21 | 2011-10-21 | Low-speed and large-torque motor-based direct-driven winch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204043968U CN202322165U (en) | 2011-10-21 | 2011-10-21 | Low-speed and large-torque motor-based direct-driven winch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322165U true CN202322165U (en) | 2012-07-11 |
Family
ID=46434155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204043968U Expired - Lifetime CN202322165U (en) | 2011-10-21 | 2011-10-21 | Low-speed and large-torque motor-based direct-driven winch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105129643A (en) * | 2015-06-17 | 2015-12-09 | 中国石油天然气集团公司 | Direct-drive winch system of single alternating-current variable-frequency asynchronous motor of drilling machine |
-
2011
- 2011-10-21 CN CN2011204043968U patent/CN202322165U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105129643A (en) * | 2015-06-17 | 2015-12-09 | 中国石油天然气集团公司 | Direct-drive winch system of single alternating-current variable-frequency asynchronous motor of drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |