CN104802116A - Self-elevating platform motor torque pre-loading device and loading and detecting method - Google Patents
Self-elevating platform motor torque pre-loading device and loading and detecting method Download PDFInfo
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- CN104802116A CN104802116A CN201410811390.0A CN201410811390A CN104802116A CN 104802116 A CN104802116 A CN 104802116A CN 201410811390 A CN201410811390 A CN 201410811390A CN 104802116 A CN104802116 A CN 104802116A
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- China
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- motor
- torque
- moment
- prestrain
- torque spanner
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a self-elevating platform motor torque pre-loading device and a method for pre-loading torque and detecting pre-loaded torque by the motor torque pre-loading device. The motor torque pre-loading device comprises a torque wrench, an operation handle and a motor connector, the torque wrench is provided with a torque loading end, a torque output end and a display unit for displaying a torque value, the operation handle is connected with the torque loading end of the torque wrench, one end of the motor connector is adaptively connected with the torque output end of the torque wrench and can be driven to rotate by the torque wrench, and the other end of the motor connector is provided with a connecting portion for connecting a motor output shaft. The motor torque pre-loading device overcomes the defects of a traditional pile leg lifting control system in terms of torque loading and detecting, and the risk of damaging a lifting device by instantaneous impact is reduced, so that lifting operation is safer and rapider. Besides, the device is simple to manufacture, convenient to operate and high in practicability.
Description
Technical field
The present invention relates to marine engineering equipment construction applications, particularly a kind of motor torque pre-load means of jack-up unit, and adopt this motor torque pre-load means to carry out the method for moment prestrain and prestrain moment inspecting respectively.
Background technology
For the lifting of traditional pile legs of self-elevating drilling platform and fastening system, the moment of torsion pre-loaded function of lift motor is lacked in control system, in spud leg lifting process, moment transfers to jacking system from fastening system, instantaneous impulsive force will be produced to lift motor, be easy to cause the badly damaged of lift motor and related accessories, and then affect the debugging progress of drilling platforms, the entirety even affecting platform time serious is paid, and causes huge property loss to shipyard.
For the spud leg lift control system after part upgrading, although add pre-loaded function, in order to ensure the security of descending operation, also need to detect loaded moment, to verify the accuracy of prestrain, avoid causing the badly damaged of lift motor and related accessories.
Summary of the invention
The object of the present invention is to provide a kind of motor torque pre-load means of jack-up unit, and the method utilizing this motor torque pre-load means to carry out prestrain and prestrain moment inspecting is provided respectively, overcoming traditional spud leg lift control system and load the defect with context of detection at torsion, avoiding the phenomenon that lowering or hoisting gear damages because suffering instantaneous impact.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
According to an aspect of the present invention, the invention provides a kind of motor torque pre-load means of jack-up unit, comprise torque spanner, operating grip and motor connector; Torque spanner has moment loading end and moment output, and is provided with the display unit showing moment values; Operating grip connects the moment loading end of described torque spanner; Motor connector one end connects the moment output of described torque spanner adaptedly and can drive rotation by torque spanner, and the motor connector other end is provided with the connecting portion in order to connecting motor output shaft.
Preferably, described operating grip, be detachable connection between described motor connector and described torque spanner.
Preferably, described operating grip is connected with described torque spanner is detachable by a pepe bridge; Described pepe bridge comprises two holders, and two holders are removably connected and fixed by securing member; The moment loading end of described torque spanner is located between two holders, and described operating grip is fixedly connected with a wherein holder.
Preferably, described two holders are symmetrical structure, holder profile rectangular-blocklike, and its side is provided with opening; The opening of two holders is relative, thus clamps the moment loading end of described torque spanner.
Preferably, described operating grip is vertical with described torque spanner.
Preferably, described connecting portion comprises an axle sleeve, and axle sleeve is provided with keyway, to be fixedly connected with described motor output shaft.
According to another aspect of the present invention, the invention provides a kind of motor torque prestrain method of jack-up unit, described jack-up unit comprises with the spud leg of tooth bar, the gear that is meshed with described tooth bar, and the motor in order to drive described pinion rotation to be elevated to drive described spud leg; This motor torque prestrain method adopts motor torque pre-load means as above to carry out the prestrain of motor torque; Described motor torque prestrain method comprises: before carrying out spud leg lifting, by operating grip, the moment of torque spanner is loaded on setting value, motor connector is fixedly connected with the output shaft of motor, thus this moment of torque spanner is loaded on the output shaft of described motor by motor connector; When described setting value is not less than spud leg lifting, pinion feedback is to the torque value of motor output shaft.
Preferably, passing through described motor connector before described motor loading moment, also comprising and motor is tested, and discharging the step of motor pressure.
According to a further aspect of the invention, the invention provides a kind of motor preload force moment detection method of jack-up unit, described jack-up unit comprises with the spud leg of tooth bar, the gear that is meshed with described tooth bar, and the motor in order to drive described pinion rotation to be elevated to drive described spud leg; Before carrying out spud leg lifting, described motor has carried out moment prestrain by carrying pre-loaded function; This motor preload force moment detection method adopts motor torque pre-load means as above to carry out; Described method comprises: be fixedly connected with the output shaft of described motor by described motor connector, is shown the size of the described motor moment of prestrain, and judge whether prestrain moment meets the requirements thus by display unit.
Preferably, described method also comprises: when detecting that the prestrain moment of described motor is undesirable, by operating grip, the moment of torque spanner is loaded on satisfactory value, this moment of torque spanner is loaded on the output shaft of described motor by motor connector.
As shown from the above technical solution, advantage of the present invention and good effect are: motor torque pre-load means provided by the present invention, prestrain can be carried out to the lift motor of jack-up unit, greatly reducing the risk that lowering or hoisting gear damages because suffering instantaneous impact, making the lift work of jack-up unit spud leg safer, rapid.Meanwhile, the making of this device is simple, easy to operate, practicality is high, significant to the debugging of jack-up unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of motor torque pre-load means preferred embodiment of the present invention.
Fig. 2 is the structure sectional view of motor torque pre-load means preferred embodiment of the present invention.
Fig. 3 is the using state schematic diagram of motor torque pre-load means preferred embodiment of the present invention.
Description of reference numerals is as follows: 1, motor torque pre-load means; 11, torque spanner; 111, moment loading end; 112, moment output; 113, display unit; 12, operating grip; 13, motor connector; 131, connecting rod; 132, connecting portion; 14, pepe bridge; 141, holder; 142, holder; 143, securing member; 2, motor; 21, output shaft; 3, transmission mechanism; 4, gear.
Detailed description of the invention
The exemplary embodiment embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes on different embodiments, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.
Jack-up unit comprises main hull and relative to the spud leg of main hull lifting, main hull can be equipped with and coordinate to realize the lowering or hoisting gear be elevated with spud leg.Wherein, in more common jack-up unit, spud leg adopts truss structure, which is provided with tooth bar.Lowering or hoisting gear is correspondingly provided with can meshed gears adaptive with the tooth bar of spud leg, and gear is driven by lift motor and rotates, thus drives gear rack elevating.
The present invention aims to provide a kind of motor torque pre-load means being applied to this jack-up unit, it implements principle: in spud leg lifting process, before locking device unclamps, by this motor torque pre-load means, motor is carried out to the preload operation of moment of torsion (moment), make the weight transmitting of main platform body in rack-and-pinion, like this after unclamping locking device, lifter wheel tooth bar and motor can be effectively avoided to be destroyed because being subject to the impact of transient force.After prestrain completes, then carry out normal spud leg descending operation.
Fig. 1 and Fig. 2 illustrates the structure of motor torque pre-load means one preferred embodiment of the present invention.This motor torque pre-load means 1 mainly comprises torque spanner 11, operating grip 12, motor connector 13 and pepe bridge 14.
Torque spanner 11 has moment loading end 111 and moment output 112, and is provided with the display unit 113 showing moment values.The display unit 113 illustrated in the present embodiment is hand of dial formula, in other embodiments, also can be digital.The theory and structure of torque spanner 11 can refer to existing torque spanner, is not specifically introduced herein.
Operating grip 12 removably connects the moment loading end 111 of torque spanner 11 by pepe bridge 14, applies torsion for user to torque spanner 11.Operating grip 12 is perpendicular with torque spanner 11, can be more laborsaving.
Motor connector 13 comprises connecting rod 131, and connecting rod 131 one end is connected with moment output 112 adaptation of torque spanner 11 and can drives rotation by torque spanner 11, and connecting rod 131 other end is provided with connecting portion 132 to be used for connecting motor output shaft.
As shown in Figure 2, the structure of one end that connecting rod 131 is connected with torque spanner 11 is determined according to the structure of the moment output 112 of torque spanner 11, such as, can be spline structure.Connecting rod 131 is connected for detachable with torque spanner 11, is convenient to dismounting.
The concrete structure of connecting portion 132 can be determined according to the structure of motor, and in the present embodiment, connecting portion 132 comprises an axle sleeve, can be sheathed on motor output shaft, and axle sleeve is provided with keyway, is fixedly connected with motor output shaft by driving key.
Pepe bridge 14 is a Tc type pepe bridge, and it comprises two holder 141,142, two holders 141,142 is symmetrical structure, profile rectangular-blocklike, and side is provided with opening, makes holder 141,142 form similar U-shaped structure.The opening of two holders 141,142 is relative, thus the moment loading end 111 of clamping torque spanner 11.Two holders 141,142 are respectively equipped with adaptive installing hole in opening both sides, are more removably connected by the securing member 143 be made up of with adaptive nut bolt.
Operating grip 12 and holder 142 are fixedly connected with by the mode such as welding, bonding, thus form detachable connection with torque spanner 11.
The version of pepe bridge 14 is not limited to the structure shown in figure, only needs it to form detachable connection with torque spanner 11.And operating grip 12 is also not limited to only adopt pepe bridge 14 to connect with the connection of torque spanner 11.
This motor torque pre-load means 1 applies moment of torsion by operating grip 12 to torque spanner 11, the moment of torsion of torque spanner 11 is passed on motor by motor connector 13 again, thus moment prestrain can be carried out to the motor of jack-up unit, greatly reduce the risk that lowering or hoisting gear damages because suffering instantaneous impact.
Further, in the present embodiment, Each part part adopts detachable connection, when not using, and disassembled rear placement, saving takes up room, convenient collection; And operating grip 12 and motor connector 13 can mate the torque spanner 11 of different size, meet the different needs, use more flexible.
According to above-mentioned motor torque pre-load means 1, the present invention also provides a kind of motor torque prestrain method and motor preload force moment detection method of jack-up unit respectively.Wherein, motor torque prestrain method is applicable to the jack-up unit of spud leg electric control system for lifting without pre-loaded function, in order to carry out prestrain to motor; Motor preload force moment detection method is then applicable to the jack-up unit of spud leg electric control system for lifting band pre-loaded function, in order to carry out the detection of moment to the motor after prestrain moment.
In these two kinds of methods, motor torque pre-load means 1 is identical with the connected mode of motor 2.As shown in Figure 3, motor 2 connects gear 4 by transmission mechanism 3 and rotates with driven wheel 4.Namely the motor connector 13 of motor torque pre-load means 1 is fixedly connected with the output shaft 21 of motor 2.
Motor torque prestrain method is specially: before carrying out spud leg lifting, by operating grip 12, the moment of torque spanner 11 is loaded on setting value, motor connector 13 is fixedly connected with the output shaft 21 of motor 2, thus this moment of torque spanner 11 is loaded on the output shaft 21 of motor 2 by motor connector 13; Described setting value is not less than gear 4 when spud leg is elevated and feeds back to the torque value of motor 2 output shaft 21.
The step of practical operation is roughly as follows:
One, the calculating of lift motor moment of torsion W;
1, gear compound graduation circular diameter D is calculated:
Its computing formula is:
Wherein: M is module, P is tooth pitch, and Z is the number of teeth.
2, calculating the moment of torsion W (i.e. torque spanner need load torque setting value) that lowering or hoisting gear output feeds back to motor-end after transmission mechanism is:
Wherein: T is lowering or hoisting gear output lifting weight; I is gear ratio; η is motor service efficiency, can inquire about from supplier's Technical specification; G is acceleration of gravity constant.
Two, before rising stake, according to the requirement in equipment operating handbook, lift motor is tested, and use spud leg electric control system for lifting to discharge the pressure of lift motor.
Three, after confirming that the lowering or hoisting gear of whole ship is no problem, the cover plate of lift motor afterbody of dismantling, is connected on the power transmission shaft of formal scheme by motor torque pre-load means, then releasing of brake, carries out prestrain to this lift motor by the original moment of torsion calculated.Each lift motor for jack-up unit according to said method carries out calculated torque and carries out prestrain one by one.
Four, after prestrain, unclamp fastening system, carry out follow-up spud leg descending operation.
For a certain jack-up unit spud leg electric control system for lifting without the preload operation under pre-loaded function:
First, from supplier's Technical specification, inquire about following parameter: tooth pitch P=9.894in, tooth number Z=7, lowering or hoisting gear output lifting weight T=454000kg, lifting unit gear ratio i=6679, motor service efficiency η=0.9.Acceleration of gravity constant g is taken as: g=9.8m/s
2.
Gear compound graduation circular diameter
motor needs the moment of torsion of prestrain
When utilizing motor torque pre-load means 1 of the present invention to carry out moment prestrain, namely applied the moment of 206.36Nm to torque spanner 11 by operating grip 12, moment values itself controls by torque spanner 11.Then, by motor connector 13, the moment of motor 2 is preloaded into 206.36Nm.
For the jack-up unit of spud leg electric control system for lifting band pre-loaded function, when motor 2 is by after carrying pre-loaded function and having carried out moment prestrain, in order to confirm that the moment of each motor 2 meets the demands, detect by motor torque pre-load means of the present invention 1 pair of motor 2 prestrain moment.
This detection method is: be fixedly connected with the output shaft 21 of motor 2 by the motor connector 13 of motor torque pre-load means 1, shown the size of motor 2 moment of prestrain by the display unit 113 of torque spanner 11, and judge whether prestrain moment meets the requirements thus.
More preferably, when detecting that the prestrain moment of motor 2 is undesirable, by operating grip 12, the moment of torque spanner 11 is loaded on satisfactory value, this moment of torque spanner 11 is loaded on the output shaft 21 of motor 2 by motor connector 13.
The step of practical operation is roughly as follows:
One, the calculating of lift motor moment of torsion W; Computational process can with reference to the method for above-mentioned moment prestrain.
Two, before rising stake, according to the requirement in equipment operating handbook, lift motor is tested, and discharge the pressure of lift motor.
Three, after confirming that the lowering or hoisting gear of whole ship is no problem, according to the moment of torsion previously calculated, the pre-loaded function using spud leg to carry carries out automatic prestrain to the lift motor of each spud leg, locking braking afterwards respectively.
Four, to dismantle the cover plate of lift motor afterbody, detect lift motor afterbody prestrain moment of torsion one by one by this motor torque pre-load means and whether meet the requirements.If met, carry out next step operation, if do not met, check whether corresponding electric-control system has problems, until queueing problem, the moment of torsion of each motor prestrain is met the requirements.Should be noted the handling safety of personnel in this process, this device should be avoided to reverse operator is damaged.
Five, after prestrain completes, unclamp fastening system, carry out follow-up descending operation.
Although describe the present invention with reference to several exemplary embodiment, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit or the essence of invention is not departed from because the present invention can specifically implement in a variety of forms, so be to be understood that, above-mentioned embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claim of enclosing and contained.
Claims (10)
1. a motor torque pre-load means for jack-up unit, is characterized in that, comprising:
Torque spanner, it has moment loading end and moment output, and is provided with the display unit showing moment values;
Operating grip, connects the moment loading end of described torque spanner;
Motor connector, its one end connects the moment output of described torque spanner adaptedly and can drive rotation by torque spanner, and the motor connector other end is provided with the connecting portion in order to connecting motor output shaft.
2. motor torque pre-load means according to claim 1, is characterized in that, described operating grip, is detachable connection between described motor connector and described torque spanner.
3. motor torque pre-load means according to claim 2, is characterized in that, described operating grip is connected with described torque spanner is detachable by a pepe bridge; Described pepe bridge comprises two holders, and two holders are removably connected and fixed by securing member; The moment loading end of described torque spanner is located between two holders, and described operating grip is fixedly connected with a wherein holder.
4. motor torque pre-load means according to claim 3, is characterized in that, described two holders are symmetrical structure, holder profile rectangular-blocklike, and its side is provided with opening; The opening of two holders is relative, thus clamps the moment loading end of described torque spanner.
5. the motor torque pre-load means according to any one of claim 1-4, is characterized in that, described operating grip is vertical with described torque spanner.
6. the motor torque pre-load means according to any one of claim 1-4, is characterized in that, described connecting portion comprises an axle sleeve, and axle sleeve is provided with keyway, to be fixedly connected with described motor output shaft.
7. a motor torque prestrain method for jack-up unit, described jack-up unit comprises with the spud leg of tooth bar, the gear that is meshed with described tooth bar, and the motor in order to drive described pinion rotation to be elevated to drive described spud leg; It is characterized in that, this motor torque prestrain method adopts the motor torque pre-load means as described in any one of claim 1-6 to carry out the prestrain of motor torque;
Described motor torque prestrain method comprises:
Before carrying out spud leg lifting, by operating grip, the moment of torque spanner is loaded on setting value, motor connector is fixedly connected with the output shaft of motor, thus this moment of torque spanner is loaded on the output shaft of described motor by motor connector; When described setting value is not less than spud leg lifting, pinion feedback is to the torque value of motor output shaft.
8. motor torque prestrain method according to claim 7, is characterized in that, passing through described motor connector before described motor loading moment, also comprising and testing to motor, and discharging the step of motor pressure.
9. a motor preload force moment detection method for jack-up unit, described jack-up unit comprises with the spud leg of tooth bar, the gear that is meshed with described tooth bar, and the motor in order to drive described pinion rotation to be elevated to drive described spud leg; Before carrying out spud leg lifting, described motor has carried out moment prestrain by carrying pre-loaded function; It is characterized in that, this motor preload force moment detection method adopts the motor torque pre-load means as described in any one of claim 1-6 to carry out;
Described method comprises:
Described motor connector is fixedly connected with the output shaft of described motor, is shown the size of the described motor moment of prestrain by display unit, and judge whether prestrain moment meets the requirements thus.
10. motor preload force moment detection method according to claim 9, it is characterized in that, described method also comprises:
When detecting that the prestrain moment of described motor is undesirable, by operating grip, the moment of torque spanner is loaded on satisfactory value, this moment of torque spanner is loaded on the output shaft of described motor by motor connector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811390.0A CN104802116B (en) | 2014-12-22 | 2014-12-22 | Self-elevating platform motor torque pre-loading device and loading and detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811390.0A CN104802116B (en) | 2014-12-22 | 2014-12-22 | Self-elevating platform motor torque pre-loading device and loading and detecting method |
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| CN104802116A true CN104802116A (en) | 2015-07-29 |
| CN104802116B CN104802116B (en) | 2017-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113423891A (en) * | 2018-09-25 | 2021-09-21 | 卡斯淘Msc有限公司 | Method for stabilizing jack-up platform unit |
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| CN202438953U (en) * | 2012-03-12 | 2012-09-19 | 东北石油大学 | Turning gear for oil pumping unit motor |
| US20140207391A1 (en) * | 2013-01-21 | 2014-07-24 | Wei-Ning Hsieh | Torque socket structure |
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
| CN204321955U (en) * | 2014-12-22 | 2015-05-13 | 烟台中集来福士海洋工程有限公司 | The motor torque pre-load means of jack-up unit |
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2014
- 2014-12-22 CN CN201410811390.0A patent/CN104802116B/en active Active
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| JPS629242A (en) * | 1985-07-08 | 1987-01-17 | Mitsubishi Heavy Ind Ltd | Load torque detector |
| CN1843705A (en) * | 2005-04-07 | 2006-10-11 | 京都机械工具株式会社 | Torque wrench |
| CN201249418Y (en) * | 2008-06-11 | 2009-06-03 | 王言忠 | Constant torque boosting wrench for railway sleeper nuts |
| CN202438953U (en) * | 2012-03-12 | 2012-09-19 | 东北石油大学 | Turning gear for oil pumping unit motor |
| US20140207391A1 (en) * | 2013-01-21 | 2014-07-24 | Wei-Ning Hsieh | Torque socket structure |
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113423891A (en) * | 2018-09-25 | 2021-09-21 | 卡斯淘Msc有限公司 | Method for stabilizing jack-up platform unit |
| CN113423891B (en) * | 2018-09-25 | 2023-07-18 | 卡斯淘Msc有限公司 | Method for stabilizing a jack-up platform unit |
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| CN104802116B (en) | 2017-02-22 |
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