CN111120582A - Multi-motor-driven parallel shaft gear resultant force reduction gearbox for petroleum drilling - Google Patents
Multi-motor-driven parallel shaft gear resultant force reduction gearbox for petroleum drilling Download PDFInfo
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- CN111120582A CN111120582A CN202010117025.5A CN202010117025A CN111120582A CN 111120582 A CN111120582 A CN 111120582A CN 202010117025 A CN202010117025 A CN 202010117025A CN 111120582 A CN111120582 A CN 111120582A
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- 230000009467 reduction Effects 0.000 title claims abstract description 55
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 239000003208 petroleum Substances 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 208000032369 Primary transmission Diseases 0.000 claims description 13
- 208000032370 Secondary transmission Diseases 0.000 claims description 7
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005255 carburizing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009365 direct transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010006514 bruxism Diseases 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Structure Of Transmissions (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a multi-motor drive parallel shaft gear resultant force reduction box for petroleum drilling, which comprises a reduction box body, at least two stages of transmission mechanisms, a main gear and an output shaft, wherein the at least two stages of transmission mechanisms comprise an input shaft, a first-stage gear, an intermediate shaft and an N-stage gear; the two ends of the input shaft extend out of the reduction gearbox and are connected with the motor, and the primary gear is arranged on the input shaft and is driven by the input shaft; at least one N-stage gear is arranged on an intermediate shaft of the N-stage transmission mechanism and is used for realizing speed reduction transmission between the N-1-stage gear and the N + 1-stage gear or direct transmission between the N-1-stage gear and the main gear; the main gear is arranged on the output shaft, the output shaft extends out of the reduction gearbox to transmit load, the high-power output driven by a plurality of low-power inputs and the multi-gear speed reduction of the high-speed motor are realized through the coupling transmission of the multi-stage transmission mechanism, and the multi-gear speed reduction device has the advantages of large output torque, simple structure, low production and manufacturing cost, safe and reliable work and long service life.
Description
Technical Field
The invention relates to a reduction gearbox, in particular to a multi-motor-driven parallel shaft gear resultant reduction gearbox for oil drilling.
Background
At present, drilling power devices in the domestic petroleum industry are divided into direct diesel engine driving, alternating current variable frequency motor driving, direct current motor driving, grid power motor driving and the like, and the power sources are diesel generator sets, diesel engines or grid power and have defects respectively.
The direct driving speed regulation of the diesel engine is difficult, and the cost performance is low; the direct current motor drive or the alternating current asynchronous motor drive all have SCR or VFD control room, and control is complicated, and the maintenance degree of difficulty is big, and the energy consumption is high, and motor and control are components of a whole that can function independently and arrange, and a whole set of actuating system is expensive, has radiating effect and efficiency poor simultaneously, the quality is heavy, bulky, difficult maintenance scheduling problem to the requirement to weather and environment is also higher.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a multi-motor-driven parallel shaft gear resultant reduction gearbox for petroleum drilling, which realizes high-power and high-torque output, high-rotating-speed and multi-gear speed reduction, has a simple structure, is low in cost and is convenient to control.
A multi-motor drive parallel shaft gear resultant reduction gearbox for oil drilling comprises a reduction gearbox body, at least two stages of transmission mechanisms, a main gear and an output shaft, wherein the at least two stages of transmission mechanisms comprise an input shaft and a first stage gear which are used as a first stage transmission mechanism, and an intermediate shaft and an N stage gear which are used as an N stage transmission mechanism; the two ends of the input shaft extend out of the reduction gearbox and are provided with motor connecting mechanisms for connecting at least 2 motors, the primary gear is arranged on the input shaft and driven by the input shaft, and the power of the 2 motors is combined and then transmitted to the secondary transmission mechanism; at least one N-stage gear is arranged on an intermediate shaft of the N-stage transmission mechanism and is used for realizing transmission between an N-1-stage gear and an N + 1-stage gear or transmission between the N-1-stage gear and a main gear, and the transmission mode is meshing between the gears, mostly under the condition of no gear meshing; the main gear is arranged on the output shaft, and at least one end of the output shaft extends out of the reduction gearbox; n is a natural number greater than 1.
Basically, the two ends of the input shaft, the two ends of the intermediate shaft and the two ends of the output shaft are all arranged on the reduction gearbox through bearings.
Basically, the output shaft is arranged in the middle of the reduction gearbox, and the at least two stages of transmission mechanisms are arranged on two sides of the output shaft in pairs.
Basically, one secondary transmission mechanism can correspond to two or more primary transmission mechanisms, the input shafts of the two or more primary transmission mechanisms are provided with resultant force gears which are meshed with each other, and the input shaft of one primary transmission mechanism is provided with one primary gear for transmitting the secondary gear.
Basically, one secondary transmission mechanism can correspond to two or more primary transmission mechanisms, and the input shafts of the two or more primary transmission mechanisms are provided with primary gears which are meshed with the secondary gears.
On the basis, the N-stage gear and the primary gear, and the N-stage gear and the main gear on the N-stage transmission mechanism are arranged according to the transmission ratio.
Basically, the motor coupling mechanism is a key coupling mechanism or a shaft coupling or an intermediate clutch.
Basically, the output end of the output shaft is provided with an elastic coupling or a connecting flange or a key coupling mechanism or a hollow cardan shaft reverse coupling or a clutch.
Basically, the primary gear, the N-level gear and the main gear are all made of nickel alloy steel through carburizing and quenching treatment, the hardness is HRC60+/-2, and the tooth form is straight teeth, helical teeth or herringbone teeth.
In addition, in the N-stage transmission mechanism, when the number of the N-stage gears is more than 1, the diameter of the N-stage gear engaged with the N-1 stage gear is larger than that of the N-stage gear engaged with the N +1 stage gear or the main gear.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the invention adopts the coupling transmission among the multi-stage transmission mechanisms to reduce the multi-shaft power input resultant force and then output the resultant force by a single shaft, thereby realizing the following innovative functions:
1. the functions of small power input and large power output are realized, a plurality of small power motors can be adopted as a power source, the resultant force output of the small power motors is realized, and the power and the torque are improved;
2. the multi-gear speed reduction function in a high rotating speed mode is realized, when speed reduction is needed, the number of more than two stages of transmission mechanisms is increased, or the number of motors is reduced in a multi-motor multi-shaft input mechanism, so that the multi-gear speed reduction operation function can be realized.
Compared with a motor set controlled in a complex mode, the novel structure greatly reduces production cost and control cost, can be flexibly allocated according to power requirements, for example, one-stage transmission mechanisms are added to improve power, the number of the transmission mechanisms above two stages is increased to realize multi-gear speed regulation, the number of the motors and the number of the transmission mechanisms above two stages are increased to realize high rotating speed and the like, and various products with different functions can be produced on the premise of basic mechanism forming.
Drawings
Fig. 1 is a transmission principle diagram of a multi-motor drive parallel shaft gear resultant reduction gearbox for oil drilling in embodiment 1 of the invention.
Fig. 2 is a transmission principle diagram of the multi-motor driven parallel shaft gear resultant reduction gearbox for oil drilling in embodiment 2 of the invention.
Fig. 3 is a transmission principle diagram of the multi-motor driven parallel shaft gear resultant reduction gearbox for oil drilling in embodiment 3 of the invention.
FIG. 4 is a transmission schematic diagram of another application of the multi-motor driven parallel shaft gear resultant reduction gearbox for oil drilling in embodiment 2 of the present invention.
Fig. 5 is a transmission principle diagram of the multi-motor driven parallel shaft gear resultant reduction gearbox for oil drilling in embodiment 4 of the present invention.
In the figure: 1. a reduction box body; 2. a main gear; 3. an output shaft; 4. an input shaft; 5. a primary gear; 6. an intermediate shaft; 7. a secondary gear; 8. a resultant force gear; 9. a secondary gear; 10. a secondary gear; 11. a motor; 12. a bull gear; 13. a pinion gear.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
As shown in fig. 1, the present embodiment provides a 4-motor and 5-shaft multi-motor driven parallel shaft gear resultant reduction gearbox for oil drilling, which mainly functions to perform resultant output on 4 motors, and to achieve the primary functions of low power input and high power output.
The transmission device comprises a reduction box body 1, two groups of two-stage transmission mechanisms, a main gear 2 and an output shaft 3, wherein the two-stage transmission mechanisms comprise an input shaft 4 and a first-stage gear 5 which are used as first-stage transmission mechanisms, and an intermediate shaft 6 and a second-stage gear 7 which are used as second-stage transmission mechanisms; the two ends of the input shaft 4 extend out of the reduction gearbox 1 and are directly connected with the motor through an involute internal spline or a coupler or an intermediate clutch, the motor can be a permanent magnet motor, an asynchronous motor or a direct current speed regulation motor, the primary gear 5 is installed on the input shaft 4 and driven by the input shaft 4, and the power resultant force of the 2 motors is transmitted downwards through the primary gear 5.
A secondary gear 7 is arranged on an intermediate shaft 6 of the secondary transmission mechanism, and the secondary gear 7 is respectively meshed with the primary gear 5 and the main gear 2 and is used for realizing transmission between the 1-level gear 5 and the main gear 2.
The main gear 2 is arranged on the output shaft 3, at least one end of the output shaft 3 extends out of the reduction gearbox to serve as an output end, and the elastic coupling is arranged.
The two ends of the input shaft 4, the two ends of the intermediate shaft 6 and the two ends of the output shaft 3 are all mounted on the reduction gearbox 1 through rolling bearings, the primary gear 5, the secondary gear 7 and the main gear 2 are all made of nickel alloy steel through carburizing and quenching treatment, the hardness is HRC60+/-2, the tooth form is straight teeth, helical teeth or herringbone teeth, high-precision numerical control forming grinding teeth are adopted in final processing, the precision of the hard tooth face gear reaches 5 levels specified by the GB/T10095 standard, and deformation or fracture under high torque is avoided.
The output shaft 3 is arranged in the middle of the reduction gearbox 1, and the two groups of two-stage transmission mechanisms are arranged on two sides of the output shaft 3 in pairs.
The working principle is as follows: the motors 11 at two ends of the same input shaft rotate synchronously at the same speed, the input shaft 4 drives the primary gear 5 to rotate together, the primary gear 5 drives the secondary gear 7 to rotate through a meshing relation, the secondary gear 7 drives the primary gear 2 to rotate through a meshing relation, the primary gear 2 drives the output shaft 3 to rotate, the elastic coupling on the output shaft 3 is used for external load, power output is realized, two groups of transmission mechanisms at two ends of the output shaft 3 are symmetrically designed, the motor steering is designed according to the number of the gears and the matching relation, the final purpose is to drive the output shaft to be in the same steering, and the specifications of the four motors are preferably in the same order to keep synchronous and same-speed rotation.
In a specific application scenario, the number of the motors is not limited, and can be 2, 3 or 4, and the power can also be allocated according to the needs, so that the flexibility is higher.
Example 2
As shown in fig. 2, the present embodiment provides a multi-motor driven parallel shaft gear resultant reduction box for oil drilling with 8 motors and 7 shafts, wherein the biggest difference is that: one secondary transmission mechanism corresponds to two primary transmission mechanisms, the input shafts 3 of the two primary transmission mechanisms are provided with resultant force gears 8 which are meshed with each other, one primary gear 5 is arranged on the input shaft of one primary transmission mechanism and is used for transmitting two secondary gears 7, the two secondary gears are respectively 9 and 10, the diameter of the secondary gear 9 meshed with the primary gear 5 is larger than that of the secondary gear 10 meshed with the main gear 2, and one gear is arranged, and the other two gears are arranged, so that the control of the transmission ratio is realized.
The motor power output device aims to realize high-power output under the condition that the motor power is low, more primary transmission mechanisms are needed, so that the power of four motors is combined and then transmitted to a secondary gear 7 through a primary gear 5, the power of 4 motors is combined, the output power is improved, two groups of mechanisms are symmetrically arranged, finally, the power of 8 motors is combined, and the output is carried out through an output shaft, so that the output power and the output torque are greatly improved.
In addition, as shown in fig. 4, another usage of the present embodiment is to adopt four high-speed motor inputs, to idle four motor inputs, to set two on one side, and to replace the gears on the idle input shaft with one large gear and one small gear to form a two-stage transmission mechanism, so that in the high-speed mode, a three-gear speed reduction mode of the primary gear 5 and the large gear 12, the small gear 13 and the intermediate gear 9, the secondary gear 10 and the main gear 2 is formed, and multi-gear speed reduction in the high-speed operation mode is realized.
Example 3
As shown in fig. 3, the present embodiment is different from embodiment 2 in that one secondary transmission mechanism can correspond to two or more primary transmission mechanisms, and the input shafts of the two or more primary transmission mechanisms are provided with primary gears and are both meshed with the secondary gears, that is, the secondary gears serve as sun gears and the primary gears serve as planet gears, and the driving of each planet gear drives the rotation of the sun gears to realize the power resultant force of a plurality of motors.
Example 4
As shown in fig. 5, the main difference between this embodiment and embodiment 1 is: the multi-motor-driven parallel shaft gear resultant force reduction box for the petroleum drilling as the simplified version comprises two motors and three shafts, wherein two ends of an input shaft 4 are connected with the two motors, a primary gear 5 is installed on the input shaft 4, a secondary gear 7 is installed on an intermediate shaft 6, and the secondary gear 7 drives a main gear 2, so that the transmission of an output shaft is realized, and the multi-motor-driven parallel shaft gear resultant force reduction box is applied as the simplest version.
In a word, according to the scheme of the application, the matching combination design of any number of motors and any gear speed reduction can be carried out as required, the principle is ingenious, the adaptability is high, the universality is high, the method is extremely applicable to occasions of resultant force output, the production cost is low, and the popularization and the application are easy.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. A multi-motor drive parallel shaft gear resultant force reduction box for oil drilling is characterized in that: the gearbox comprises a reduction box body, at least two stages of transmission mechanisms, a main gear and an output shaft, wherein the at least two stages of transmission mechanisms comprise an input shaft and a first stage gear which are used as first stage transmission mechanisms, and an intermediate shaft and an N stage gear which are used as N stage transmission mechanisms, and the number of the first stage transmission mechanisms is at least one; the two ends of the input shaft extend out of the reduction gearbox and are provided with a motor connecting mechanism, and the primary gear is arranged on the input shaft and is driven by the input shaft; at least one N-stage gear is arranged on an intermediate shaft of the N-stage transmission mechanism and is used for realizing transmission between the N-1-stage gear and the N + 1-stage gear or transmission between the N-1-stage gear and the main gear; the main gear is arranged on the output shaft, and at least one end of the output shaft extends out of the reduction gearbox; n is a natural number greater than 1.
2. The multi-motor drive parallel shaft gear resultant reduction box for oil drilling according to claim 1, characterized in that: the output shaft is arranged in the middle of the reduction gearbox, and the at least two stages of transmission mechanisms are arranged on two sides of the output shaft in pairs.
3. The multi-motor drive parallel shaft gear resultant reduction box for the oil drilling as claimed in claim 1 or 2, wherein: the two-stage transmission mechanism can correspond to two or more first-stage transmission mechanisms, the input shafts of the two or more first-stage transmission mechanisms are provided with resultant force gears which are meshed with each other, and the input shaft of one first-stage transmission mechanism is provided with one first-stage gear for transmitting the two-stage gear.
4. The multi-motor drive parallel shaft gear resultant reduction box for the oil drilling as claimed in claim 1 or 2, wherein: one secondary transmission mechanism can correspond to two or more primary transmission mechanisms, and the input shafts of the two or more primary transmission mechanisms are provided with primary gears which are meshed with the secondary gears.
5. The multi-motor drive parallel shaft gear resultant reduction box for oil drilling according to claim 3, characterized in that: and the two ends of the input shaft, the two ends of the intermediate shaft and the two ends of the output shaft are all arranged on the reduction gearbox through bearings.
6. The multi-motor drive parallel shaft gear resultant reduction box for oil drilling according to claim 4, characterized in that: the N-stage gear and the first-stage gear, and the N-stage gear and the main gear on the N-stage transmission mechanism are arranged according to the transmission ratio.
7. The multi-motor drive parallel shaft gear resultant reduction box for oil drilling according to claim 1, characterized in that: the motor coupling mechanism is a key coupling mechanism or a coupling or an intermediate clutch.
8. The multi-motor drive parallel shaft gear resultant reduction box for oil drilling according to claim 1, characterized in that: and the output end of the output shaft is provided with an elastic coupling or a connecting flange or a key coupling mechanism or a hollow cardan shaft reverse coupling or a clutch.
9. The multi-motor driven parallel shaft gear resultant reduction box for the oil drilling as claimed in claim 1, 2, 5, 6, 7 or 8, wherein: the first-stage gear, the N-stage gear and the main gear are all made of nickel alloy steel through carburizing and quenching treatment, the hardness is HRC60+/-2, and the tooth form is straight tooth, helical tooth or herringbone tooth.
10. The multi-motor driven parallel shaft gear resultant reduction box for the oil drilling as claimed in claim 1, 2, 5, 6, 7 or 8, wherein: in the N-stage transmission mechanism, when the number of the N-stage gears is more than 1, the diameter of the N-stage gear meshed with the N-1 stage gear is larger than that of the N-stage gear meshed with the N +1 stage gear or the main gear.
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CN202010117025.5A CN111120582A (en) | 2020-02-25 | 2020-02-25 | Multi-motor-driven parallel shaft gear resultant force reduction gearbox for petroleum drilling |
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CN202010117025.5A CN111120582A (en) | 2020-02-25 | 2020-02-25 | Multi-motor-driven parallel shaft gear resultant force reduction gearbox for petroleum drilling |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112031739A (en) * | 2020-08-27 | 2020-12-04 | 江苏辰午节能科技股份有限公司 | Dual-motor driving system for petroleum drilling and control method thereof |
CN112343985A (en) * | 2020-09-17 | 2021-02-09 | 南京理工大学 | Distribution drive type linear transmission mechanism |
CN116613929A (en) * | 2023-04-28 | 2023-08-18 | 江苏金丰机电有限公司 | Hub driving motor |
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CN110723671A (en) * | 2019-09-20 | 2020-01-24 | 宝鸡石油机械有限责任公司 | Four-gear transmission case for petroleum drilling winch |
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