CN110171781B - High-maintainability light alternating-current variable-frequency winch and control method thereof - Google Patents
High-maintainability light alternating-current variable-frequency winch and control method thereof Download PDFInfo
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- CN110171781B CN110171781B CN201910457397.XA CN201910457397A CN110171781B CN 110171781 B CN110171781 B CN 110171781B CN 201910457397 A CN201910457397 A CN 201910457397A CN 110171781 B CN110171781 B CN 110171781B
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- winch
- roller
- shaft
- main motor
- reduction gearbox
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a high-maintainability light alternating-current variable-frequency winch, which comprises a main motor and a reduction gearbox of alternating-current variable frequency, wherein the main motor is in transmission connection with an input shaft of the reduction gearbox through a coupler; the outside cover of cylinder axle assembly is equipped with the cylinder guard shield, and cylinder guard shield top is provided with the backing plate, and the backing plate is connected with the rope roller through adjusting bolt. The invention also discloses a control method of the light alternating current variable frequency winch. The winch can be arranged with a double-motor driving winch according to different working conditions, the layout mode of automatic bit feeding of the main motor is adopted, the bit feeding of the main motor is realized, the layout mode of single motor and automatic bit feeding can be adopted, the two modes are flexibly selected, and the applicability of the winch is effectively improved.
Description
Technical Field
The invention belongs to the technical field of petroleum drilling and production equipment, and particularly relates to a high-maintainability light alternating-current variable-frequency winch and a method, and a control method of the light alternating-current variable-frequency winch.
Background
Along with the requirements of the industrial technology and the petroleum equipment for updating and development, the drilling winch develops towards the direction of diversification of forms, large power and more advanced and reasonable performance. The winch serving as a core component of the oil drilling rig puts higher requirements on reliability, weight, external dimension and the like, and particularly has strict requirements on volume and weight in places with strict requirements on weight and volume such as an ocean platform.
The petroleum drilling winch is classified according to the driving form, and mainly comprises the following types: the alternating-current variable-frequency winch has the advantages of being small in size and light in weight, and has become the mainstream configuration of the petroleum drilling winch.
However, on the site of an oil field, most of domestic conventional alternating-current variable-frequency winches have the defects of overlarge size, overlarge weight and poor maintainability, and although the working requirements on the site of the oil field can be met, the installation and transportation of the winches are difficult, the winches occupy large space of a drilling platform surface, and the reasonable arrangement of the drilling platform surface is influenced.
Disclosure of Invention
The invention aims to provide a high-maintainability light alternating-current variable-frequency winch, which reduces the length and the size of the winch and the weight of the winch.
Another object of the present invention is to provide a method for controlling the above-mentioned light ac inverter winch with high maintainability.
The invention adopts the technical scheme that the light alternating-current variable-frequency winch with high maintainability comprises a main motor and a reduction gearbox of alternating-current variable frequency, wherein the reduction gearbox is provided with four shafts comprising an automatic bit feeding shaft, an output shaft, an intermediate shaft and an input shaft, the main motor is in transmission connection with the input shaft of the reduction gearbox through a coupling, the automatic bit feeding shaft of the reduction gearbox is in transmission connection with an automatic bit feeding device through a clutch, the output shaft of the reduction gearbox is in transmission connection with a roller shaft assembly through a universal shaft, the roller shaft assembly is connected with a hydraulic disc brake device through a connecting disc, and an encoder is installed at the shaft end of the roller shaft assembly; the outside of the roller shaft assembly is sleeved with a roller shield.
The present invention is also characterized in that,
the automatic drill feeding shaft, the output shaft and the middle shaft are collinear.
The top of the roller shield is provided with a backing plate, a long hole is processed on the backing plate, and the backing plate is connected with a rope blocking roller through an adjusting bolt.
The rope blocking rollers are arranged in two numbers, the two rope blocking rollers are symmetrically arranged about the central line of the roller, and the positions of the two rope blocking rollers can be adjusted through adjusting bolts.
The main motor and the automatic drill feeding device are symmetrically arranged in the middle of the winch, namely, are positioned between the reduction gearbox and the roller shaft assembly and are positioned on the inner side of the reduction gearbox.
The invention adopts another technical scheme that the control method of the high-maintenance light alternating current variable frequency winch is implemented according to the following steps:
1) and (3) switching the working modes: when a double-motor driving and main motor automatic bit feeding mode needs to be entered, the correct connection of double main motors of the winch needs to be confirmed, and the electric control system needs to be switched to a double main motor control mode, wherein in the mode, one main motor fails, the winch hydraulic disc brake device brakes, and the electric control system gives an alarm when the failure occurs; when a single-motor driving and independent automatic drill feeding device mode needs to be entered, the correct connection of a winch main motor and the automatic drill feeding device is confirmed, and an electric control system needs to be switched to a corresponding control mode;
2) adjusting the position of the rope blocking roller: the position of the rope stopping roller is adjusted by adjusting the relative position of the bolt in the long hole of the base plate; when the winch steel wire rope rubs against the front of the roller shield, the rope blocking roller is backward, and the adjusting bolt needs to be adjusted to move the rope blocking roller forward; when the winch steel wire rope rubs the rear side of the roller shield, the position of the rope blocking roller is forward, and the adjusting bolt needs to be adjusted to move the rope blocking roller backwards; and repeating the steps until the positions of the two rope stopping rollers are correct.
The invention has the beneficial effects that:
1) the design is light. The winch adopts a brand new layout scheme that the motor is arranged between the reduction gearbox and the roller shaft assembly and is arranged in the middle of the winch, so that the winch is convenient to install and transport;
2) two modes, flexible selection. The structure of the reduction gearbox is optimally designed, so that the winch can be arranged with a double-motor driving winch according to different working conditions, a layout mode of automatic bit feeding of the main motor is adopted, bit feeding of the main motor is given play, the layout mode of single motor and automatic bit feeding can be adopted, two modes are flexibly selected, and the applicability of the winch is effectively improved;
3) high maintainability. In the conventional winch, the reduction gearbox is usually arranged in the middle of the winch, namely, the reduction gearbox is arranged between the motor and the roller shaft assembly, so that the daily overhaul and maintenance of the reduction gearbox with large maintenance amount are often influenced, and the safe operation of the winch is not facilitated. According to the winch, the reduction gearbox is arranged at the end of the winch, so that the maintenance space of the reduction gearbox is increased, and the maintainability of the reduction gearbox is improved.
Drawings
FIG. 1 is a block diagram of a high-maintenance, lightweight AC variable frequency winch of the present invention;
FIG. 2 is a schematic diagram (I) of a light AC frequency conversion winch with high maintainability;
FIG. 3 is a front view of a high maintenance, lightweight AC variable frequency winch of the present invention;
FIG. 4 is a perspective view of the reduction gearbox in a high maintenance, lightweight AC variable frequency drawworks;
FIG. 5 is a schematic diagram of a light AC frequency conversion winch with high maintainability according to the present invention;
FIG. 6 is an enlarged view of a portion of the high maintenance, lightweight AC variable frequency drawworks of the present invention.
In the figure, 1, a reduction gearbox, 2, a coupler, 3, a main motor, 4, a universal shaft, 5, a hydraulic disc brake device, 6, a clutch, 7, an automatic drill feeding device, 8, a roller shaft assembly, 9, an encoder, 10, a base, 11, a connecting disc, 12, an automatic drill feeding shaft, 13, an output shaft, 14, an intermediate shaft, 15, an input shaft, 16, a roller shield, 17, a rope blocking roller, 18, an adjusting bolt and 19 a backing plate are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, 2 and 3, the light alternating-current variable-frequency winch with high maintainability comprises a main motor 3 and a reduction gearbox 1, wherein the main motor 3 is in transmission connection with an input shaft 15 of the reduction gearbox 1 through a coupler 2, an automatic drill feeding shaft 12 of the reduction gearbox 1 is in transmission connection with an automatic drill feeding device 7 through a clutch 6, an output shaft 13 of the reduction gearbox 1 is in transmission connection with a roller shaft assembly 8 through a universal shaft 4, the roller shaft assembly 8 is connected with a hydraulic disc brake device 5 through a connecting disc 11, the hydraulic disc brake devices 5 are symmetrically arranged, and an encoder 9 is installed at the shaft end of the roller shaft assembly 8; all the parts are fixed on a base 10, and two main motors 3 are arranged and are connected with a reduction gearbox 1;
as shown in fig. 5 and 6, a drum shield 16 is sleeved outside the drum shaft assembly 8, a backing plate 19 is arranged at the top of the drum shield 16, the backing plate 19 is connected with rope blocking rollers 17 through adjusting bolts 18, the two rope blocking rollers 17 are symmetrically arranged about the center line of the drum, long holes are processed on the backing plate 19, the positions of the two rope blocking rollers 17 can be adjusted through adjustment of the adjusting bolts 18, and the service life of the rope blocking rollers 17 is prolonged;
referring to fig. 4, the reduction gearbox 1 is provided with four input and output shafts, including an automatic bit feeding shaft 12, an output shaft 13, an intermediate shaft 14 and an input shaft 15, wherein the automatic bit feeding shaft 12 is connected with an automatic bit feeding device 7 through a clutch 6, the output shaft 13 is connected with a roller shaft assembly 8 through a universal shaft 4, and the input shaft 15 is connected with a main motor 3 through a coupling 2; wherein, the automatic drilling shaft 12, the output shaft 13 and the intermediate shaft 14 are collinear; the position of the axis of the input shaft 15 of the reduction gearbox is lower, and the arrangement reduces the center distance between the input shaft 15 and the output shaft 13, so that the main motor is closer to the center of the winch, and the width of the winch is reduced;
the intermediate shaft 14 is a transmission shaft, and a shifting fork mechanism of a winch gear shifting device is arranged on the shaft.
The hydraulic disc brake device 5 is arranged outside the roller body assembly 8 through the connecting disc 11, so that the size of the connecting disc 11 is reduced without being influenced by the diameter of the roller body, and the purpose of reducing the width of the winch is achieved;
the reduction gearbox 1 is a two-gear reduction gearbox or a one-gear reduction gearbox;
referring to fig. 2 and 3, a main motor 3 with alternating-current frequency conversion and an automatic bit feeding device 7 are symmetrically arranged in the middle of the winch, namely between a reduction gearbox 1 and a roller shaft assembly 8, and are positioned on the inner side of the reduction gearbox 1; the space of the connection of the main motor 3 and the reduction gearbox 1 and the connection of the reduction gearbox 1 and the roller shaft assembly 8 is efficiently utilized, and the length size of the winch is effectively reduced; in addition, the main motor 3 with a larger size, the automatic drill feeding device 7 with a smaller size and the special structural design of the reduction gearbox 1 (see figure 4) are correspondingly arranged on two sides, so that the width of the winch is reduced, and the overall weight and the volume of the winch are effectively reduced.
The winch of the invention is provided with two working modes:
(1) double motor drive + main motor automatic bit feed mode. The winch is provided with the double motors, when the power requirement of the winch is large, the double motors can work simultaneously, and the winch is suitable for heavy load lifting or lowering working conditions; when the power requirement of the winch is low, a single motor can be started to work, and at the moment, two motors can be used for backup and one is used for standby, so that the safety of the winch is improved. And the automatic bit feeding of the main motor also has the characteristic of high lowering speed.
(2) Single motor drive + independent automatic bit feeder mode. When the winch is provided with the single motor and the independent automatic bit feeding device, the single motor is started under normal working conditions to meet daily lifting and lowering of the winch, the configured independent bit feeding device can meet high-requirement accurate control of oil field site on automatic bit feeding precision, and drilling working conditions that oil field stratum conditions are harsh and the bit feeding speed is slow are effectively met.
According to different environment working conditions of the oil field site, the working mode of the winch can be flexibly selected, so that different requirements and flexible selection of the oil field site are realized.
The invention discloses a control method of a high-maintainability light alternating-current variable-frequency winch, which is implemented according to the following steps:
1) and switching the working modes. The winch of the invention is provided with two working modes: the double-motor-driven automatic bit feeding device has the advantages that the double-motor-driven automatic bit feeding device has a double-motor-driven automatic bit feeding mode and a single-motor-driven automatic bit feeding device has an independent automatic bit feeding mode, the double-motor-driven automatic bit feeding device and the single-motor-driven automatic bit feeding device are suitable for different working conditions and need to be selectively switched, meanwhile, corresponding selection configuration needs to be conducted on hardware and software control, and the electric control system needs to be provided with. When a double-motor driving and main motor automatic bit feeding mode needs to be entered, the correct connection of double main motors 3 of the winch needs to be confirmed, and the electric control system needs to be switched to a double main motor control mode, wherein in the mode, one main motor 3 breaks down, the winch hydraulic disc brake device 5 brakes, and the electric control system gives an alarm when the fault occurs; when the mode of single motor driving and independent automatic drill feeding device 7 needs to be entered, the connection of the single motor of the winch, the automatic drill feeding device 7, the clutch 6 and the like needs to be confirmed to be correct, and the electric control system needs to be switched to a corresponding control mode, in the mode, when a single main motor 3 fails, the automatic drill feeding device 7 fails, the clutch 6 fails and the like, the brake 5 of the hydraulic disc brake device of the winch and the fault alarm of the electric control system can be caused.
2) And adjusting the position of the rope blocking roller. The winch of the invention is provided with two rope stopping rollers 17 which are symmetrically arranged about the central line of the roller on the top of the roller shield 16. When a single winch leaves a factory, the positions of the two rope blocking rollers 17 are not subjected to a rope winding test of a winch steel wire rope, so that the positions of the rope blocking rollers 17 are possibly deviated, the steel wire rope cannot be effectively blocked, and the winch shield is further rubbed, and in such a case, the position of the rope blocking rollers 17 needs to be adjusted through the relative position of the adjusting bolts 18 in the long holes of the backing plate 19. When the winch steel wire rope rubs against the front of the roller shield 16, the rope blocking roller 17 is positioned backwards, and the adjusting bolt 18 needs to be adjusted to move the rope blocking roller 17 forwards; when the winch cable rubs behind the drum shield 16, the rope stopping roller 17 is positioned forward, and the adjusting bolt 18 needs to be adjusted to move the rope stopping roller 17 backward. The above steps are repeated until the two rope blocking rollers 17 are correctly positioned, and the steel wire rope can be prevented from rubbing the shield.
Claims (1)
1. A control method of a high-maintenance light alternating-current variable-frequency winch is realized by adopting the high-maintenance light alternating-current variable-frequency winch, and the specific structure is as follows: the automatic drilling machine comprises a main motor (3) and a reduction gearbox (1) which are subjected to alternating-current frequency conversion, wherein the reduction gearbox (1) is provided with four shafts comprising an automatic drilling feeding shaft (12), an output shaft (13), an intermediate shaft (14) and an input shaft (15), the main motor (3) is in transmission connection with the input shaft (15) of the reduction gearbox (1) through a coupling (2), the automatic drilling feeding shaft (12) of the reduction gearbox (1) is in transmission connection with an automatic drilling feeding device (7) through a clutch (6), the output shaft (13) of the reduction gearbox (1) is in transmission connection with a roller shaft assembly (8) through a universal shaft (4), the roller shaft assembly (8) is connected with a hydraulic disc brake device (5) through a connecting disc (11), and an encoder (9) is installed at the shaft end of the roller shaft assembly (8); a roller shield (16) is sleeved outside the roller shaft assembly (8); the automatic drill feeding shaft (12), the output shaft (13) and the intermediate shaft (14) are collinear in three axes; a backing plate (19) is arranged at the top of the roller shield (16), a long hole is processed on the backing plate (19), and the backing plate (19) is connected with a rope blocking roller (17) through an adjusting bolt (18); the two rope blocking rollers (17) are symmetrically arranged around the center line of the roller, and the positions of the two rope blocking rollers (17) can be adjusted through adjusting bolts (18); the main motor (3) and the automatic drill feeding device (7) are symmetrically arranged in the middle of the winch, namely between the reduction gearbox (1) and the roller shaft assembly (8), and are both positioned on the inner side of the reduction gearbox (1); the method is characterized by comprising the following steps:
1) and (3) switching the working modes: when a double-motor driving and main motor automatic bit feeding mode needs to be entered, the correct connection of the double main motors (3) of the winch needs to be confirmed, and the electric control system needs to be switched to the double main motor control mode, wherein in the mode, one main motor (3) breaks down, the winch hydraulic disc brake device (5) brakes, and the electric control system gives an alarm when the fault occurs; when a single-motor driving and independent automatic drill feeding device (7) mode needs to be entered, the main motor (3), the automatic drill feeding device (7) and the clutch (6) of the winch are confirmed to be correctly connected, and the electric control system needs to be switched to a corresponding control mode, under the mode, when a single main motor (3), the automatic drill feeding device (7) and the clutch (6) break, the hydraulic disc brake device of the winch is braked (5), and the electric control system gives an alarm when the fault occurs;
2) rope blocking roller (17) position adjustment: the position of the rope blocking roller (17) is adjusted by adjusting the relative position of the bolt (18) in the long hole of the backing plate (19); when the winch steel wire rope rubs the front of the roller shield (16), the rope blocking roller (17) is backward, and the adjusting bolt (18) needs to be adjusted to move the rope blocking roller (17) forwards; when the winch steel wire rope rubs the rear part of the roller shield (16), the rope blocking roller (17) is positioned forward, and the adjusting bolt (18) needs to be adjusted to move the rope blocking roller (17) backwards; the steps are repeated until the positions of the two rope blocking rollers (17) are correct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457397.XA CN110171781B (en) | 2019-05-29 | 2019-05-29 | High-maintainability light alternating-current variable-frequency winch and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457397.XA CN110171781B (en) | 2019-05-29 | 2019-05-29 | High-maintainability light alternating-current variable-frequency winch and control method thereof |
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| Publication Number | Publication Date |
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| CN110171781A CN110171781A (en) | 2019-08-27 |
| CN110171781B true CN110171781B (en) | 2020-09-22 |
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| CN201910457397.XA Active CN110171781B (en) | 2019-05-29 | 2019-05-29 | High-maintainability light alternating-current variable-frequency winch and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110482424B (en) * | 2019-09-12 | 2024-03-15 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Marine total control hydrologic three-winch linkage control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202208616U (en) * | 2011-08-03 | 2012-05-02 | 兰州兰石国民油井石油工程有限公司 | Single gear transmission drilling machine winch |
| CN202322154U (en) * | 2011-10-21 | 2012-07-11 | 中联重科股份有限公司 | Rope skipping preventing hoisting device |
| CN103058086A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Oil well repairing machine electricity-driven winch assembly |
| CN204675715U (en) * | 2015-04-28 | 2015-09-30 | 河南省鑫源起重机有限公司 | A kind of full Terrain Cranes surpasses lift winch rope arranging automatically control setup |
| CN108639985B (en) * | 2018-04-09 | 2020-03-27 | 宝鸡石油机械有限责任公司 | Efficient composite brake mode alternating-current variable-frequency winch and lowering control method thereof |
| CN108622814B (en) * | 2018-05-15 | 2019-08-20 | 宝鸡石油机械有限责任公司 | The integrated hoister system of the major-minor brake of one kind and its control method |
| CN208684282U (en) * | 2018-08-24 | 2019-04-02 | 徐州建机工程机械有限公司 | A kind of hoist rope rope guide structure |
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Effective date of registration: 20200930 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
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