CN109024526A - The lifting speed and position detecting device and its application method of jack-up unit spud leg - Google Patents
The lifting speed and position detecting device and its application method of jack-up unit spud leg Download PDFInfo
- Publication number
- CN109024526A CN109024526A CN201810764752.3A CN201810764752A CN109024526A CN 109024526 A CN109024526 A CN 109024526A CN 201810764752 A CN201810764752 A CN 201810764752A CN 109024526 A CN109024526 A CN 109024526A
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- rack
- spud leg
- friction pulley
- fixed
- friction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the lifting speed of jack-up unit spud leg and position detecting device and its application method, including test section and rack, the test section is installed on one end of the rack；The test section includes friction pulley, friction wheel shaft, bearing, friction pulley mounting base and rotation sensor, when detection the friction pulley wheel face and spud leg contact, the friction pulley go up and down and rotate with spud leg；Rotation sensor detects angular speed and angular displacement when the friction wheel shaft rotates.For during lifting self-elevating platform, detect the real-time speed and real time position of spud leg lifting, it is supported to provide data for the lifting speed that lift control system adjusts spud leg, so as to keep level or platform inclination angle in safe range during lifting self-elevating platform.
Description
Technical field
The present invention relates to ocean platform field more particularly to the lifting speeds and position detecting device of jack-up unit spud leg
And its application method.
Background technique
Jack-up unit requires the spud leg for using elevating mechanism with moving platform and moves up and down to realize the lifting of platform.When
When jack-up unit reaches job position, spud leg is fallen, and jack-up unit is promoted to the specified altitude assignment on sea；Work as completion
When operation is homeward, jack-up unit is fallen to sea level.There are the lifting speed of multiple spud legs differences in platform lifting process
The problem of step causes jack-up unit to tilt, causes spud leg to block or be bent, or even cause spud leg mechanical failure, is especially meeting
To the case where the sea bed out-of-flatness of drilling platforms lower part, drilling platforms is easily caused to topple.
Therefore, in platform lifting process, it is often necessary to which staff detects lifting speed and the position of spud leg.Existing behaviour
In work, staff determines spud leg position by the scale on naked-eye observation spud leg, but due to distance and angular relationship, detection
Resultant error, as a result can only be only for reference in the range of ± 3m, without practical significance；And the lifting speed of spud leg then needs to rise
Drop system is calculated indirectly, because considering that power loss, the velocity amplitude obtained indirectly and values for actual speed have certain difference.
Since prohibited data detection is true, frequent occurrence platform inclination angle be more than safe range the case where, then need to manually adjust at this time
Each spud leg height is further continued for hoistable platform after making plateau levels, and time-consuming for lifting, and manual intervention is more, and elevating safety is poor.
Summary of the invention
It is an object of the invention to propose the lifting speed of jack-up unit spud leg and position detecting device and its user
Method, detection data is true and reliable, and manual intervention is few, significantly shortens lifting total time, improves platform elevating safety and work
Make efficiency.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of lifting speed and position detecting device of jack-up unit spud leg, including test section and rack, the detection
Portion is installed on one end of the rack；
The test section includes friction pulley, rub wheel shaft, bearing, friction pulley mounting base and rotation sensor, described
Friction pulley mounting base is installed on one end of the rack, and the friction pulley is fixed to be placed on friction pulley rotation axis, the friction rotation
Moving axis is installed on one end of the separate rack of friction pulley mounting base by bearing；
The friction pulley and the friction wheel shaft synchronize be freely rotated, and the wheel face of while detecting friction pulley and
Spud leg contact, the friction pulley go up and down with spud leg and are rotated；
The rotation sensor is installed on the side of the friction pulley mounting base, and the output shaft of the rotation sensor
It is connected with the friction wheel shaft, the rotation sensor detects angular speed and angle position when the friction wheel shaft rotates
It moves.
It preferably, further include limit spring, the close rack of friction pulley mounting base is fixed in one end of the limit spring
The other end, the other end of the limit spring is fixed on rack, and the limit spring and friction wheel shaft mutually hang down
Directly.
It preferably, further include power spring, the power spring is set to the inside of the rack, and the power bullet
One end of the close test section of the rack is fixed in one end of spring, and the other end of the power spring is fixed on the rack
The other end far from test section；The power spring is in compressive state.
Preferably, the wheel face of the friction pulley is uniformly distributed multiple gear teeth, between being equipped between the gear teeth described in each adjacent two
Gap；The shape of the gear teeth is prismatoid or icicle body.
Preferably, the friction pulley mounting base includes c-type frame, the closed end of the c-type frame close to one end of the rack,
Two closed sides of the c-type frame are respectively provided with bearing installation through-hole, and two bearing installation through-holes are oppositely arranged, the axis
It holds and is installed on the bearing installation through-hole, the friction wheel shaft is installed on the inside of c-type frame by bearing, and described rubs
Wiping wheel shaft is parallel with the closed end of c-type frame, and the friction pulley is protruded outward from the open end of c-type frame；
It further include rotary mounting seat, the rotary mounting seat is fixed on the outside of the closed side of the c-type frame, and institute
The periphery that rotary mounting seat is set to bearing installation through-hole is stated, the encoder that turns is fixed on the rotary mounting seat, and institute
The output shaft for stating rotation sensor is connected with the friction wheel shaft.
Preferably, the friction pulley mounting base further includes rack connection sheet, the first limit hook and mounting pin, the rack
Connection sheet is installed on the outside of the closed end of the c-type frame, and the rack connection sheet passes through one end of mounting pin and rack
Connection；
The outside of the closed end of c-type frame is equipped with the first limit hook, and the C is fixed in one end of the limit spring
First limit hook of type frame.
Preferably, the rack includes upper rack posts, support rod, connecting rod, test section mounting rod and pedestal, the pedestal
Both ends are erect respectively is provided with two support rods, and the upper end of two adjacent support rods is connected by connecting rod, opposite
The upper end of two support rods is connected by upper rack posts, and one end of two upper rack posts is connected by test section mounting rod, described
Rack connection sheet is connected by mounting pin with test section mounting rod, and the rack connection sheet is perpendicular to test section mounting rod；
The close end of one end of the upper rack posts is equipped with the second limit hook, and the other end of the limit spring is fixed on the
Two limit hooks.
Preferably, the rack further includes stretching hook and stretching mounting base, and the power spring is obliquely installed in opposite
Two support rods between, and support rod close to test section is fixed on by stretching hook in one end of the power spring
On, the other end of the power spring is fixed on the support rod far from test section by stretching mounting base；
The stretching mounting base includes stretching connecting plate, stretch connecting screw and stretching fixed plate, the stretching connecting plate
It is installed on the support rod of the separate test section, the stretching fixed plate is connected by stretching connecting screw and stretching connecting plate
Connect, and the stretching connecting plate and stretch fixed plate and be parallel to each other, by stretching connecting screw adjust the stretchings connecting plate with
The distance of fixed plate is stretched, the other end of the power spring is fixed on stretching fixed plate.
Preferably, the rack further includes fixed cross beam, deep floor and the first fixed plate, two adjacent support rods
Lower end is connected by fixed cross beam, and the support rod is run through at the both ends of fixed cross beam, and the both ends of the fixed cross beam pass through
First fixed plate is connected with pedestal, and the deep floor is arranged in the intersection of the fixed cross beam and support rod.
Preferably, special according to the application method of the lifting speed of the jack-up unit spud leg and position detecting device
Sign is, comprising the following steps:
Firstly, be bonded the wheel face of friction pulley and spud leg during jack-up unit uphill process or decline, it is described to rub
It wipes wheel to rotate with support leg movement, rub wheel shaft and friction pulley synchronous rotation at this time, the rotation sensor detection friction
Angular speed and angular displacement when wheel shaft rotates；
Then, the angular speed and angular displacement that lift control system acquisition rotation sensor detects, it is public according to conversion
Formula calculates lifting speed and the position of spud leg, the conversion formula are as follows:
V=ω R, s=vt
Wherein, v is the linear velocity of friction pulley, the i.e. lifting speed of spud leg, and ω is the angular speed of friction pulley, and R is friction pulley
Radius, s be friction pulley arc length, i.e., the displacement of spud leg, t are run duration.
The lifting speed and position detecting device of the jack-up unit spud leg, in lifting self-elevating platform process
In, the real-time speed and real time position of detection spud leg lifting, to be provided for the lifting speed that lift control system adjusts spud leg
Data are supported, so as to keep level or platform inclination angle in safe range during lifting self-elevating platform；Realize stake
The full-automation of the lifting speed and position detection of leg, and lifting speed can directly detected with position, and detection data is true
It is real reliable, avoid manually measuring bring error and lift control system calculate indirectly in because of power loss bring error, greatly
The earth reduces the manual intervention during lifting self-elevating platform, greatly shortens lifting total time, improves platform lifting peace
Full property and working efficiency.
Detailed description of the invention
The present invention will be further described for attached drawing, but the content in attached drawing does not constitute any limitation of the invention.
Fig. 1 is the detection device schematic perspective view of the one of embodiment of the present invention；
Fig. 2 is the detection device overlooking structure diagram of the one of embodiment of the present invention；
Fig. 3 is the detection device plan structure enlarged drawing of the one of embodiment of the present invention；
Fig. 4 is the structure of friction wheel figure of the one of embodiment of the present invention；
Fig. 5 is the test section Structure explosion diagram of the one of embodiment of the present invention；
Fig. 6 is the detection device side structure schematic view of the one of embodiment of the present invention.
Wherein: rack 1；Friction pulley 2；Rub wheel shaft 3；Bearing 4；Friction pulley mounting base 5；Rotation sensor 6；Spud leg
91；Output shaft 61；Limit spring 7；Power spring 8；The gear teeth 21；C-type frame 51；The closed end 511 of c-type frame 51；Closed side
512；Bearing installation through-hole 513；Rack connection sheet 52；First limit hook 53；Mounting pin 54；Upper rack posts 11；Support rod 12；Even
Extension bar 13；Test section mounting rod 14；Pedestal 15；Second limit hook 16；Stretch mounting base 17；Stretch connecting plate 171；The company of stretching
Connect screw 172；Stretch fixed plate 173；Fixed cross beam 18；Deep floor 19；First fixed plate 10；Stretch hook 161；Rotation peace
Fill seat 62.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The lifting speed and position detecting device of the jack-up unit spud leg of the present embodiment, as shown in Figure 1, including test section
With rack 1, the test section is installed on one end of the rack 1；
As shown in Figure 1 to Figure 3, the test section includes friction pulley 2, friction wheel shaft 3, bearing 4, friction pulley mounting base
5 and rotation sensor 6, the friction pulley mounting base 5 is installed on one end of the rack 1, and the fixation of friction pulley 2 is placed on friction
Wheel shaft 3, the friction wheel shaft 3 are installed on one end of the separate rack 1 of friction pulley mounting base 5 by bearing 4；
The friction pulley 2 and the friction wheel shaft 3 synchronize be freely rotated, and the wheel of while detecting friction pulley 2
Face and spud leg 91 contact, and the friction pulley 2 goes up and down with spud leg 91 and rotated；
The rotation sensor 6 is installed on the side of the friction pulley mounting base 5, and the rotation sensor 6 is defeated
Shaft 61 and the friction wheel shaft 3 connection, the rotation sensor 6 detect the angle when friction wheel shaft 3 rotates
Speed and angular displacement.
The lifting speed and position detecting device of the jack-up unit spud leg, in lifting self-elevating platform process
In, the real-time speed and real time position that detection spud leg 91 is gone up and down, to adjust the lifting speed of spud leg 91 for lift control system
It provides data to support, so as to keep level or platform inclination angle in safe range during lifting self-elevating platform.Its work
Make principle are as follows: when spud leg 91 rises, the wheel face of friction pulley 2 and spud leg 91 are bonded, thus by transmission effect, 91 band of spud leg
Dynamic friction wheel 2 rotates, and friction pulley rotation axis 3 is placed on since friction pulley 2 is fixed, friction wheel shaft 3 can be with friction pulley 2 one
With rotation；The output shaft 61 of rotation sensor 6 and the friction wheel shaft 3 connection, thus rotation sensor 6 detect it is described
Angular speed and angular displacement when the wheel shaft 3 that rubs rotates, rotation sensor 6 are turned angular speed and angular displacement by photoelectric conversion
Corresponding electric pulse is changed into, and by electric pulse with digital output to lift control system, to calculate the real-time of spud leg 91
Speed and real time position.Testing principle when spud leg 91 declines known to similarly.
The lifting speed and position detecting device of the jack-up unit spud leg realize lifting speed and the position of spud leg
The full-automation of detection, and lifting speed can directly detected with position, and detection data is true and reliable, avoids manually measuring
Bring error and lift control system calculate indirectly in because of power loss bring error, greatly reduce jack-up unit
Manual intervention in lifting process significantly shortens lifting total time, improves platform elevating safety and working efficiency.
Preferably, as shown in Figure 1, further including limit spring 7, friction pulley installation is fixed in one end of the limit spring 7
The other end of close the rack 1 of seat 5, the other end of the limit spring 7 are fixed on rack 1, and the limit spring 7 with rub
Wheel shaft 3 is wiped to be mutually perpendicular to.During lifting self-elevating platform, if there are the inclined feelings of jack-up unit relative level
The case where condition, limit spring 7 can be tilted according to jack-up unit, generates tensile deformation or compressive deformation, so that it is guaranteed that friction pulley 2
It can be bonded with spud leg 91, guarantee the real-time speed that also reliably can accurately detect spud leg 91 in the inclined situation of jack-up unit
With real time position.
Preferably, as shown in Figure 1, further including power spring 8, the power spring 8 is set to the inside of the rack 1,
And one end of the close test section of the rack 1 is fixed in one end of the power spring 8, the power spring 8 it is another
The other end of the separate test section of the rack 1 is fixed at end；The power spring 8 is in compressive state.The power spring 8
The both ends of rack 1 are connected, the force direction of the power spring 8 in compressive state is from inside to outside, so that power spring 8 mentions
Friction pulley 2 and spud leg 91 is set to be bonded for power.
Preferably, it as shown in figure 4, the wheel face of the friction pulley 2 is uniformly distributed multiple gear teeth 21, is taken turns described in each adjacent two
Gap is equipped between tooth 21；The shape of the gear teeth 21 is prismatoid or icicle body.It is same with the rotation of spud leg 91 to enhance friction pulley 2
Step property, avoids friction pulley 2 that stuck or rotational hysteresis occurs, improves the reliability of detection data.
Preferably, as shown in figure 5, the friction pulley mounting base 5 includes c-type frame 51, the closed end 511 of the c-type frame 51
Close to one end of the rack 1, two closed sides 512 of the c-type frame 51 are respectively provided with bearing installation through-hole 513, two institutes
It states bearing installation through-hole 513 to be oppositely arranged, the bearing 4 is installed on the bearing installation through-hole 513, the friction wheel shaft
3 are installed on the inside of c-type frame 51 by bearing 4, and the friction wheel shaft 3 is parallel with the closed end 511 of c-type frame 51,
The friction pulley 2 is protruded outward from the open end of c-type frame 51；
It further include rotary mounting seat 62, the rotary mounting seat 62 is fixed on the outer of the closed side 512 of the c-type frame 51
Side, and the rotary mounting seat 62 is set to the periphery of bearing installation through-hole 513, and the encoder 6 that turns is fixed on the rotation
Turn mounting base 62, and the output shaft 61 of the rotation sensor 6 and the friction wheel shaft 3 connection.
The friction wheel shaft 3 is installed on the open end edge of c-type frame 51, friction pulley 2 from the open end of c-type frame 51 to
Outer protrusion to not only guarantee that friction pulley 2 was bonded with spud leg 91, but also avoids friction pulley 2 from contacting with other objects, avoids to friction
The rotation of wheel 2 generates resistance.And c-type frame 51 is prominent from one end of rack 1, avoids its in addition to friction pulley 2 of detection device
He contacts in place with spud leg 91, and detection device is avoided to generate resistance to the movement of spud leg 91.The friction wheel shaft 3 passes through axis
4 insides for being installed on c-type frame 51 are held, reduce the frictional force generated when friction wheel shaft 3 rotates, it is ensured that friction wheel shaft
3 rotation data really reflects the movement of spud leg 91.
Preferably, as shown in figure 5, the friction pulley mounting base 5 further includes 53 and of the limit hook of rack connection sheet 52, first
Mounting pin 54, the rack connection sheet 52 is installed on the outside of the closed end 511 of the c-type frame 51, and the rack connects
Piece 52 is connected by mounting pin 54 with one end of rack 1；The outside of the closed end 511 of c-type frame 51 is equipped with first limit and hangs
The first limit hook 53 of the c-type frame 51 is fixed in hook 53, one end of the limit spring 7.
C-type frame 51 is not to be connected with rack 1, but removable installation, so as to according to the size of spud leg 91 and
Structure is different, replaces the test section with different size friction pulleys 2, and when test section is impaired detachably come out be replaced and
Maintenance.Limit spring 7 connects the upper rack posts 11 of c-type frame 51 and rack 1, assists supporting role of the mounting pin 54 to c-type frame 51, and
Tensile deformation or compressive deformation are generated in the inclined situation of jack-up unit, so that it is guaranteed that friction pulley 2 can be bonded with spud leg 91.
Preferably, as shown in Figure 1, the rack 1 includes upper rack posts 11, support rod 12, connecting rod 13, test section mounting rod
14 and pedestal 15, the both ends of the pedestal 15 erect two support rods 12 for being provided with two support rods 12, and adjacent respectively
Upper end connected by connecting rod 13, the upper end of two opposite support rods 12 is connected by upper rack posts 11, two upper branch
One end of bar 11 is connected by test section mounting rod 14, and the rack connection sheet 52 passes through mounting pin 54 and test section mounting rod 14
Connection, the rack connection sheet 52 is perpendicular to test section mounting rod 14；As shown in figure 3, the proximal end of one end of the upper rack posts 11
Portion is equipped with the second limit hook 16, and the other end of the limit spring 7 is fixed on the second limit hook 16.
Preferably, as shown in Figure 1, the rack 1 further includes stretching hook 161 and stretching mounting base 17, the power bullet
Spring 8 is obliquely installed between two opposite support rods 12, and one end of the power spring 8 is solid by stretching hook 161
Due on the support rod 12 of test section, the other end of the power spring 8 is fixed on by stretching mounting base 17 far from inspection
On the support rod 12 in survey portion；
As shown in fig. 6, the stretching mounting base 17 includes stretching connecting plate 171, stretching connecting screw 172 and stretch and fix
Plate 173, the stretching connecting plate 171 are installed on the support rod 12 of the separate test section, and the stretching fixed plate 173 passes through
Stretching connecting screw 172 and stretching connecting plate 171 connect, and the stretching connecting plate 171 and stretching fixed plate 173 are mutually put down
Row adjusts the stretching connecting plate 171 by stretching connecting screw 172 and stretches the distance of fixed plate 173, the power spring 8
The other end be fixed on stretch fixed plate 173.Power spring 8 in compressive state generates the support rod 12 for being located at its both ends
Pressure enables friction pulley 2 and spud leg 91 to be bonded so that power spring 8 provides power.And it is adjusted by stretching connecting screw 172
The distance between stretch connecting plate 171 and stretch fixed plate 173, to adjust the compression degree of power spring 8, to adjust power
Size, to adapt to the spud leg 91 of different tonnages, it is ensured that friction pulley 2 can be bonded with spud leg 91.
Preferably, as shown in Figure 1, the rack 1 further includes fixed cross beam 18, deep floor 19 and the first fixed plate 10,
The lower end of two adjacent support rods 12 is connected by fixed cross beam 18, and the support rod is run through at the both ends of fixed cross beam 18
12, the both ends of the fixed cross beam 18 are connected by the first fixed plate 10 and pedestal 15, the fixed cross beam 18 and support rod 12
Intersection the deep floor 19 is set.The rack 1 improves structural strength by fixed cross beam 18 and deep floor 19, is
Support rod 12 provides support, effectively disperses the pressure that spud leg 91 generates rack 1 when jack-up unit tilts.
Preferably, the application method of the lifting speed of the jack-up unit spud leg and position detecting device, including it is following
Step:
Firstly, the wheel face of friction pulley 2 and spud leg 91 are bonded, institute during jack-up unit uphill process or decline
It states friction pulley 2 to move and rotate with spud leg 91, rub wheel shaft 3 and the synchronous rotation of friction pulley 2 at this time, the inspection of rotation sensor 6
Survey the angular speed when friction wheel shaft 3 rotates and angular displacement；
Then, the angular speed and angular displacement that lift control system acquisition rotation sensor 6 detects, it is public according to conversion
Formula calculates lifting speed and the position of spud leg, the conversion formula are as follows:
V=ω R, s=vt
Wherein, the linear velocity of v --- friction pulley 2, the i.e. lifting speed of spud leg 91；
The angular speed of ω --- friction pulley 2；
The radius of R --- friction pulley 2；
The arc length of s --- friction pulley 2, the i.e. displacement of spud leg 91；T --- run duration.
The lifting speed of the jack-up unit spud leg and the application method of position detecting device, in jack-up unit
In lifting process, the real-time speed and real time position that detection spud leg 91 is gone up and down, to adjust spud leg 91 for lift control system
Lifting speed provides data and supports, so as to keep level or platform inclination angle in safe range during lifting self-elevating platform
It is interior；The full-automation of the lifting speed and position detection of spud leg is realized, and lifting speed can directly detected with position,
Detection data is true and reliable, avoid manually measuring bring error and lift control system calculate indirectly in because power loss is brought
Error, greatly reduce the manual intervention during lifting self-elevating platform, significantly shorten lifting total time, improve
Platform elevating safety and working efficiency.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of lifting speed and position detecting device of jack-up unit spud leg, including test section and rack, the test section
It is installed on one end of the rack, it is characterised in that:
The test section includes friction pulley, friction wheel shaft, bearing, friction pulley mounting base and rotation sensor, the friction
Wheel mounting base is installed on one end of the rack, and the friction pulley fixation is placed on friction pulley rotation axis, the friction wheel shaft
One end of the separate rack of friction pulley mounting base is installed on by bearing；
The friction pulley and the friction wheel shaft synchronize be freely rotated, and the wheel face and spud leg of while detecting friction pulley
Contact, the friction pulley go up and down with spud leg and are rotated；
The rotation sensor is installed on the side of the friction pulley mounting base, and the output shaft of the rotation sensor and institute
Friction wheel shaft connection is stated, the rotation sensor detects angular speed and angular displacement when the friction wheel shaft rotates.
2. the lifting speed and position detecting device of jack-up unit spud leg according to claim 1, it is characterised in that: also
Including limit spring, the other end of the close rack of friction pulley mounting base, the limit are fixed in one end of the limit spring
The other end of spring is fixed on rack, and the limit spring and friction wheel shaft are mutually perpendicular to.
3. the lifting speed and position detecting device of jack-up unit spud leg according to claim 3, it is characterised in that: also
Including power spring, the power spring is set to the inside of the rack, and institute is fixed in one end of the power spring
One end of the close test section of rack is stated, the other end of the power spring is fixed on the another of the separate test section of the rack
End；The power spring is in compressive state.
4. the lifting speed and position detecting device of jack-up unit spud leg according to claim 1, it is characterised in that: institute
The wheel face for stating friction pulley is uniformly distributed multiple gear teeth, is equipped with gap between the gear teeth described in each adjacent two；The shape of the gear teeth
For prismatoid or icicle body.
5. the lifting speed and position detecting device of jack-up unit spud leg according to claim 3, it is characterised in that: institute
Stating friction pulley mounting base includes c-type frame, and the closed end of the c-type frame is close to one end of the rack, two envelopes of the c-type frame
It closes side and is respectively provided with bearing installation through-hole, two bearing installation through-holes are oppositely arranged, and the bearing is installed on the bearing
Installation through-hole, the friction wheel shaft are installed on the inside of c-type frame, and the friction wheel shaft and c-type by bearing
The closed end of frame is parallel, and the friction pulley is protruded outward from the open end of c-type frame；
It further include rotary mounting seat, the rotary mounting seat is fixed on the outside of the closed side of the c-type frame, and the rotation
Turn the periphery that mounting base is set to bearing installation through-hole, the encoder that turns is fixed on the rotary mounting seat, and the rotation
The output shaft for turning sensor is connected with the friction wheel shaft.
6. the lifting speed and position detecting device of jack-up unit spud leg according to claim 5, it is characterised in that: institute
Stating friction pulley mounting base further includes that rack connection sheet, the first limit hook and mounting pin, the rack connection sheet are installed on the C
The outside of the closed end of type frame, and the rack connection sheet is connected by mounting pin with one end of rack；
The outside of the closed end of c-type frame is equipped with the first limit hook, and the c-type frame is fixed in one end of the limit spring
First limit hook.
7. the lifting speed and position detecting device of jack-up unit spud leg according to claim 6, it is characterised in that: institute
Stating rack includes upper rack posts, support rod, connecting rod, test section mounting rod and pedestal, and setting is erect at the both ends of the pedestal respectively
There are two support rods, and the upper end of two adjacent support rods is connected by connecting rod, the upper end of two opposite support rods
It is connected by upper rack posts, one end of two upper rack posts is connected by test section mounting rod, and the rack connection sheet passes through peace
Dress pin is connected with test section mounting rod, and the rack connection sheet is perpendicular to test section mounting rod；
The close end of one end of the upper rack posts is equipped with the second limit hook, and the other end of the limit spring is fixed on the second limit
Position hook.
8. the lifting speed and position detecting device of jack-up unit spud leg according to claim 7, it is characterised in that: institute
Stating rack further includes stretching hook and stretching mounting base, and the power spring is obliquely installed between two opposite support rods,
And one end of the power spring is fixed on the support rod close to test section by stretching hook, the power spring it is another
One end is fixed on the support rod far from test section by stretching mounting base；
The stretching mounting base includes stretching connecting plate, stretch connecting screw and stretching fixed plate, the stretching connecting plate installation
In on the support rod of the separate test section, the stretching fixed plate is connected by stretching connecting screw with connecting plate is stretched, and
And the stretching connecting plate and stretching fixed plate are parallel to each other, and are adjusted the stretching connecting plate by stretching connecting screw and are stretched solid
The distance of fixed board, the other end of the power spring are fixed on stretching fixed plate.
9. the lifting speed and position detecting device of jack-up unit spud leg according to claim 7, it is characterised in that: institute
Stating rack further includes fixed cross beam, deep floor and the first fixed plate, and the lower end of two adjacent support rods passes through fixed cross beam
Connection, and the support rod is run through at the both ends of fixed cross beam, and the both ends of the fixed cross beam pass through the first fixed plate and pedestal
The deep floor is arranged in the intersection of connection, the fixed cross beam and support rod.
10. the lifting speed of jack-up unit spud leg according to claim 1 and the application method of position detecting device,
It is characterized in that, comprising the following steps:
Firstly, the wheel face of friction pulley and spud leg are bonded, the friction pulley during jack-up unit uphill process or decline
It is rotated with support leg movement, rub wheel shaft and friction pulley synchronous rotation at this time, and rotation sensor detects the friction rotation
Angular speed and angular displacement when moving axis rotates；
Then, the angular speed and angular displacement that lift control system acquisition rotation sensor detects, according to conversion formula meter
Calculate lifting speed and the position of spud leg, the conversion formula are as follows:
V=ω R, s=vt
Wherein, v is the linear velocity of friction pulley, the i.e. lifting speed of spud leg, and ω is the angular speed of friction pulley, and R is the half of friction pulley
Diameter, s are the arc length of friction pulley, i.e., the displacement of spud leg, t are run duration.
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| CN111663511A (en) * | 2020-04-28 | 2020-09-15 | 武汉船用机械有限责任公司 | Pile leg stroke measuring device |
| CN113062369A (en) * | 2021-03-12 | 2021-07-02 | 中国长江三峡集团有限公司 | Device and method suitable for detecting position of pile shoe of cylindrical pile leg lifting system |
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| CN109024526B (en) | 2021-03-02 |
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Denomination of invention: Lifting speed and position detection device of pile leg of self-elevating platform and using method thereof Effective date of registration: 20220825 Granted publication date: 20210302 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: KEEN OFFSHORE ENGINEERING Co.,Ltd.|GUANGDONG KEEN OFFSHORE ENGINEERING INNOVATION RESEARCH Co.,Ltd. Registration number: Y2022980013563 |
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Inventor after: Ma Zhenjun Inventor after: Zhang Jingbo Inventor after: Zhang Shuaijun Inventor after: Lu Jun Inventor after: Deng Dakui Inventor after: Li Guangyuan Inventor after: Wu Pingping Inventor after: Xu Tianyin Inventor after: Wu Borong Inventor before: Ma Zhenjun Inventor before: Zhang Jingbo Inventor before: Zhang Shuaijun Inventor before: Lu Jun Inventor before: Deng Daji Inventor before: Li Guangyuan Inventor before: Wu Pingping Inventor before: Xu Tianyin Inventor before: Wu Borong |