CN113062370B - Device and method for detecting positions of bolt and pile leg hole - Google Patents
Device and method for detecting positions of bolt and pile leg hole Download PDFInfo
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- CN113062370B CN113062370B CN202110272720.3A CN202110272720A CN113062370B CN 113062370 B CN113062370 B CN 113062370B CN 202110272720 A CN202110272720 A CN 202110272720A CN 113062370 B CN113062370 B CN 113062370B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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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
- E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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Abstract
A fixed contact mechanism is arranged in a branch cylinder of a packaging cylinder, a movable contact mechanism is in sliding fit with the packaging cylinder, an ejector pin of the movable contact mechanism extends out of the packaging cylinder, an adjusting mechanism is abutted against the movable contact mechanism, a movable contact at the end part of the ejector pin corresponds to the fixed contact, detection holes which correspond to each other are arranged on the upper surface and the lower surface of the end part of a pin of a fixed ring beam and a movable ring beam of a lifting system, and a detection device is arranged in the detection holes and is electrically connected with the lifting system. The invention solves the problems that the original ocean platform lifting system manually observes the pressure of the oil cylinder and switches the displacement judgment working conditions of the oil cylinder, the system cannot work due to easy judgment errors, and the serious accident of the water flooded platform is caused. The device has the characteristics of simple structure, flexible operation, safety and reliability, and can avoid the failure of the lifting system caused by the misjudgment of the contact position of the bolt and the pile leg hole through the signal transfer switching working condition of the upper surface and the lower surface detection devices of the bolt.
Description
Technical Field
The invention belongs to the technical field of ocean platforms, and relates to a device and a method for detecting positions of a bolt and a pile leg hole.
Background
With the continuous development of ocean technology, people can more and more widely exploit and utilize ocean resources. The ocean platform is one of main corollary equipment, and the ocean platform generally is equipped with corresponding operating system, and common ocean platform operating system has friction winch formula, rack and pinion formula and hydraulic pressure bolt formula. The hydraulic bolt lifting system is simple in structure and relatively low in manufacturing cost, so that the bolt type lifting system is widely applied to an ocean platform.
The main operation flow of the ocean platform of the hydraulic bolt lifting system is as follows: the method comprises the steps of supporting navigation to a destination, lowering the pile legs, preloading, lifting the platform, supporting operation, lowering the platform, pulling out the pile legs and lifting the pile legs. The working condition of the pile leg lowering, pre-loading and platform lowering and pile leg pulling is mainly judged by the contact state of the bolt and the pile leg hole. At present, the switching of working conditions is judged mainly through the pressure of an oil cylinder and the displacement of the oil cylinder by manual observation. For example, when the platform is lowered to the working condition of pile leg pulling, when the ocean platform is lowered to the sea level, the lower surface of the working bolt is contacted with the pile leg hole; and continuously lowering the platform, and switching to a pile pulling working condition when the upper surface of the working plug pin is contacted with the pile leg hole. If the contact position of the bolt and the pile leg hole is judged incorrectly, the lifting system cannot work, the platform is on the sea level at the moment, and if the platform is exposed to seawater tide, the platform can be submerged by seawater, so that a major accident is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device and a method for detecting the positions of a bolt and a spud leg hole, wherein the device and the method are simple in structure, a fixed contact mechanism is arranged in a branch cylinder of a packaging cylinder, a movable contact mechanism is in sliding fit with the packaging cylinder, an ejector pin of the movable contact mechanism extends out of the packaging cylinder, an adjusting mechanism is abutted against the movable contact mechanism, a movable contact at the end part of the ejector pin corresponds to the fixed contact, mutually corresponding detection holes are formed in the upper surface and the lower surface of the end part of a fixed ring beam and a movable ring beam of a lifting system, a detection device is arranged in the detection holes and is electrically connected with the lifting system, the working condition is switched by the signal transfer of the detection device on the upper surface and the lower surface of the bolt, the failure of judgment of the contact position of the bolt and the spud leg hole is avoided, and the operation is flexible, safe and reliable.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a detection device for the positions of a bolt and a pile leg hole comprises a packaging cylinder, a fixed contact mechanism, a movable contact mechanism and an adjusting mechanism; the fixed contact mechanism is positioned in a branch cylinder of the packaging cylinder, the movable contact mechanism is in sliding fit with the packaging cylinder, a sealing plate of the adjusting mechanism is matched with the packaging cylinder, and the adjusting screw is abutted against an upper sliding plate of the movable contact mechanism; the movable contact and the fixed contact at the end part of the thimble correspond to each other, and the other end of the thimble extends out of the packaging cylinder.
The packaging cylinder is a hollow cylinder body with a hole at the upper end, and a branch cylinder communicated with the packaging cylinder is arranged at the lower end.
And the inner wall of the branch cylinder is provided with a baffle ring, and the fixed contact mechanism is positioned at the lower part of the baffle ring.
The fixed contact mechanism comprises a plurality of fixed columns connected with the end plate, and buffer springs sleeved on the fixed columns are abutted to the fixed contacts.
The movable contact mechanism comprises an upper sliding plate and a lower sliding plate which are connected with the ejector pin, and a movable contact which is positioned at the end part of the ejector pin and is connected with the end part of the ejector pin, wherein the upper sliding plate and the lower sliding plate are in sliding fit with the packaging barrel.
And a sleeve connected with each other is arranged between the upper sliding plate and the lower sliding plate.
The downside of slide down sets up the guide post, and reset spring cover is located and is contradicted with encapsulation bobbin base portion on the guide post.
And the guide pipe connected with the movable contact penetrates through the baffle ring and the fixed contact to be in sliding fit with the fixed contact.
And the lead connected with the fixed contact and the movable contact is led out of the branch cylinder.
The detection method of the detection device for the positions of the bolt and the pile leg hole comprises the following steps:
s1, mounting, namely mounting the detection devices in detection holes at the end parts of beam pins of the pin lifting system respectively, wherein the extension ends of the ejector pins are positioned outside the detection holes, and the wires of the two detection devices are led out from wire holes in the pins and connected with the pin lifting system; the upper surface and the lower surface of the end part of the bolt of the fixed ring beam and the movable ring beam are provided with detection holes corresponding to each other;
s2, in an initial state, inserting the pile leg into the sea bottom, lifting the platform above the sea level, and inserting the movable ring beam bolt into the pile leg hole;
s3, performing initial action, performing lifting oil cylinder action, and inserting a fixed ring beam bolt into a pile leg hole; a thimble of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the fixed ring beam plug pin is inserted;
s4, the movable ring beam acts, when the bolt lifting system receives a signal that the fixed ring beam bolt is inserted, the movable ring beam bolt is pulled out of the pile leg hole, the lifting oil cylinder extends to the longest, and the movable ring beam bolt is inserted into the pile leg hole again; a thimble of the detection device positioned on the lower side surface of the movable ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the movable ring beam plug pin is inserted; in the process, after the bolt of the movable ring beam is pulled out of the pile leg hole, the movable contact is separated from the fixed contact, and no signal exists;
s5, the fixed ring beam acts, when the bolt lifting system receives a signal that the bolt of the movable ring beam is inserted, the bolt of the fixed ring beam is pulled out of the pile leg hole, the lifting oil cylinder is reset, and the bolt of the fixed ring beam is inserted into the pile leg hole again; a thimble of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the fixed ring beam plug pin is inserted; in the process, after the fixed ring beam plug pin is pulled out of the pile leg hole, the movable contact is separated from the fixed contact, and no signal exists;
s6, descending the platform, and repeating S4-S5 in sequence; in the step, the platform connected with the fixed frame descends synchronously along with the fixed frame, and the fixed ring beam bolt and the movable ring beam bolt are alternately inserted into the pile leg hole to complete load transfer until the platform descends to the sea level;
s7, continuing to descend the platform, and when the buoyancy is larger than the gravity of the platform, enabling an ejector pin of the side detection device on any fixed ring beam or movable ring beam pin to be abutted against a spud leg hole and retract into the packaging cylinder, and enabling the movable contact to be in contact with the fixed contact; at the moment, signals of the detection device on the lower side surface of the plug pin are transferred to the detection device on the upper side surface of the plug pin; the working condition of the platform must be switched to the working condition of the pile leg, the load transfer is carried out on the plug pins, then the pile is pulled out under the working condition of pile pulling, otherwise, the load transfer cannot be carried out on the plug pins, and the lifting system cannot act.
A detection device for the positions of a bolt and a spud leg hole comprises a packaging cylinder, a fixed contact mechanism, a movable contact mechanism and an adjusting mechanism; the fixed contact mechanism is positioned in a branch cylinder of the packaging cylinder, the movable contact mechanism is in sliding fit with the packaging cylinder, a sealing plate of the adjusting mechanism is matched with the packaging cylinder, and the adjusting screw is abutted against an upper sliding plate of the movable contact mechanism; the movable contact and the fixed contact at the end part of the thimble correspond to each other, and the other end of the thimble extends out of the packaging cylinder. Simple structure, through set up fixed contact mechanism in the branch section of thick bamboo of encapsulation section of thick bamboo, movable contact mechanism and encapsulation section of thick bamboo sliding fit, the thimble of movable contact mechanism stretches out outside the encapsulation section of thick bamboo, adjustment mechanism contradicts with movable contact mechanism, the movable contact and the fixed contact of thimble tip correspond to each other, the upper surface and the lower surface that are located lift system fixed ring roof beam and rotating ring roof beam bolt tip all set up the inspection opening of mutual correspondence, detection device is located in the inspection opening and lift system electric connection, shift through the upper surface of bolt and lower surface detection device signal switches the operating mode, avoid bolt and spud leg hole contact position to judge the fault and lead to lift system can not work, flexible operation, safety and reliability.
In a preferred scheme, the packaging barrel is a hollow barrel with an opening at the upper end, and a branch barrel communicated with the packaging barrel is arranged at the lower end of the packaging barrel. The structure is simple, when in use, the fixed contact mechanism is positioned in the branch cylinder, and the movable contact end of the movable contact mechanism is positioned in the branch cylinder and corresponds to the fixed contact of the fixed contact mechanism.
In a preferred scheme, a baffle ring is arranged on the inner wall of the branch cylinder, and the fixed contact mechanism is positioned at the lower part of the baffle ring. The structure is simple, and the baffle ring positioned in the branch cylinder is used for limiting the position of the fixed contact when the contact is used.
In a preferred scheme, the fixed contact mechanism comprises a plurality of fixed columns connected with the end plate, and a buffer spring sleeved on the fixed columns is abutted against the fixed contacts. Simple structure, during the installation, end plate and branch section of thick bamboo end connection, buffer spring's both ends are contradicted with fixed contact and end plate respectively, play the cushioning effect when fixed contact receives the impact.
In a preferred scheme, the movable contact mechanism comprises an upper sliding plate and a lower sliding plate which are connected with the ejector pins, and a movable contact which is connected with the end parts of the ejector pins, wherein the upper sliding plate and the lower sliding plate are in sliding fit with the packaging barrel. The structure is simple, and when the thimble structure is used, the upper sliding plate and the lower sliding plate connected with the thimble slide along the inner wall of the packaging barrel, so that the movable contact at the end part of the thimble is far away from the fixed contact or is in contact with the fixed contact.
In a preferred embodiment, an interconnecting sleeve is provided between the upper and lower slide plates. Simple structure, during the use, the sleeve pipe that is located to be connected between top slide and the lower slide improves the structural strength of thimble, and top slide and lower slide and encapsulation section of thick bamboo inner wall sliding stability are good.
In the preferred scheme, the downside of gliding plate sets up the guide post, and reset spring cover is located and is contradicted with encapsulation bobbin base portion on the guide post. Simple structure, during the use, when the thimble contradicts with spud leg hole inner wall, the movable contact and the fixed contact of drive thimble other end, after the thimble deviates from the spud leg hole, reset spring extends the drive lower plate and slides thimble upward movement, makes movable contact and fixed contact break away from the contact.
In a preferred scheme, the guide pipe connected with the movable contact penetrates through the baffle ring and the fixed contact to be in sliding fit with the baffle ring and the fixed contact. The structure is simple, when the thimble packaging structure is used, the guide pipe and the movable contact are connected and penetrate through the baffle ring to be in sliding fit with the fixed contact, and meanwhile, the fixed contact and the movable contact are limited to rotate in the radial direction, so that the thimble can stably slide along the axial direction of the packaging barrel.
In a preferred scheme, the lead connected with the fixed contact and the movable contact is led out of the branch cylinder. The structure is simple, and when the lifting device is used, the wires connected with the fixed contact and the movable contact are respectively and electrically connected with the control unit of the lifting system.
In a preferred embodiment, the method for detecting the position of the bolt and the leg hole comprises the following steps:
s1, mounting, namely mounting the detection devices in detection holes at the end parts of beam pins of the pin lifting system respectively, wherein the extension ends of the ejector pins are positioned outside the detection holes, and the wires of the two detection devices are led out from wire holes in the pins and connected with the pin lifting system; the upper surface and the lower surface of the end part of the bolt of the fixed ring beam and the movable ring beam are provided with detection holes corresponding to each other;
s2, in an initial state, inserting the pile leg into the sea bottom, lifting the platform above the sea level, and inserting the movable ring beam bolt into the pile leg hole;
s3, performing initial action, performing lifting oil cylinder action, and inserting a fixed ring beam bolt into a pile leg hole; a thimble of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the fixed ring beam plug pin is inserted;
s4, the movable ring beam acts, when the bolt lifting system receives a signal that the fixed ring beam bolt is inserted, the movable ring beam bolt is pulled out of the pile leg hole, the lifting oil cylinder extends to the longest, and the movable ring beam bolt is inserted into the pile leg hole again; a thimble of the detection device positioned on the lower side surface of the movable ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the movable ring beam plug pin is inserted; in the process, after the bolt of the movable ring beam is pulled out of the pile leg hole, the movable contact is separated from the fixed contact, and no signal exists;
s5, the fixed ring beam acts, when the bolt lifting system receives a signal that the bolt of the movable ring beam is inserted, the bolt of the fixed ring beam is pulled out of the pile leg hole, the lifting oil cylinder is reset, and the bolt of the fixed ring beam is inserted into the pile leg hole again; a thimble of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted against the pile leg hole and retracts into the packaging cylinder, and the movable contact is contacted with the fixed contact to conduct a signal that the fixed ring beam plug pin is inserted; in the process, after the fixed ring beam plug pin is pulled out of the pile leg hole, the movable contact is separated from the fixed contact, and no signal exists;
s6, descending the platform, and repeating S4-S5 in sequence; in the step, the platform connected with the fixed frame descends synchronously along with the fixed frame, and the fixed ring beam bolt and the movable ring beam bolt are alternately inserted into the pile leg hole to complete load transfer until the platform descends to the sea level;
s7, continuing to descend the platform, and when the buoyancy is larger than the gravity of the platform, enabling an ejector pin of the side detection device on any fixed ring beam or movable ring beam pin to be abutted against a spud leg hole and retract into the packaging cylinder, and enabling the movable contact to be in contact with the fixed contact; at the moment, signals of the detection device on the lower side surface of the plug pin are transferred to the detection device on the upper side surface of the plug pin; the working condition of the platform must be switched to the working condition of the pile leg, the load transfer is carried out on the plug pins, then the pile is pulled out under the working condition of pile pulling, otherwise, the load transfer cannot be carried out on the plug pins, and the lifting system cannot act. The method is simple and convenient to operate, and effectively prevents the pile clamping leg hole, the pile supporting leg hole and the protection pile leg hole from being mistakenly operated during the lifting action, and increases misoperation alarm.
A device and a method for detecting the positions of a bolt and a spud leg hole comprise a packaging barrel, a fixed contact mechanism, a movable contact mechanism and an adjusting mechanism, wherein the fixed contact mechanism is arranged in a branch barrel of the packaging barrel, the movable contact mechanism is in sliding fit with the packaging barrel, an ejector pin of the movable contact mechanism extends out of the packaging barrel, the adjusting mechanism is abutted against the movable contact mechanism, a movable contact at the end part of the ejector pin corresponds to the fixed contact, corresponding detecting holes are formed in the upper surface and the lower surface of the end part of the bolt of a fixed ring beam and a movable ring beam of a lifting system, and a detecting device is positioned in the detecting holes and is electrically connected with the lifting system. The invention solves the problems that the original ocean platform lifting system manually observes the pressure of the oil cylinder and switches the displacement judgment working conditions of the oil cylinder, the system cannot work due to easy judgment errors, and the serious accident of the water flooded platform is caused. The device has the characteristics of simple structure, flexible operation, safety and reliability, and can avoid the failure of the lifting system caused by the misjudgment of the contact position of the bolt and the pile leg hole through the signal transfer switching working condition of the upper surface and the lower surface detection devices of the bolt.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the lifting device of the present invention.
Fig. 3 is a schematic top view of fig. 2.
FIG. 4 is a schematic view of the latch assembly of the present invention.
Fig. 5 is a schematic view of fig. 4 taken along direction a.
Fig. 6 is an enlarged schematic view of B of fig. 4.
FIG. 7 is a schematic view of the structure of the wire hole and the detecting hole inside the plug pin of the present invention.
Fig. 8 is a schematic top view of fig. 1.
In the figure: the device comprises a packaging barrel 1, a branch barrel 11, a baffle ring 12, a fixed contact mechanism 2, an end plate 21, a fixed column 22, a buffer spring 23, a fixed contact 24, a movable contact mechanism 3, an ejector pin 31, an upper sliding plate 32, a lower sliding plate 33, a movable contact 34, a sleeve 35, a guide column 36, a return spring 37, a guide pipe 38, an adjusting mechanism 4, a sealing plate 41 and an adjusting screw 42.
Detailed Description
As shown in fig. 1 to 8, a device for detecting the position of a plug pin and a spud leg hole comprises a packaging cylinder 1, a fixed contact mechanism 2, a movable contact mechanism 3 and an adjusting mechanism 4; the fixed contact mechanism 2 is positioned in the branch cylinder 11 of the packaging cylinder 1, the movable contact mechanism 3 is in sliding fit with the packaging cylinder 1, the sealing plate 41 of the adjusting mechanism 4 is matched with the packaging cylinder 1, and the adjusting screw 42 is abutted to the upper sliding plate 32 of the movable contact mechanism 3; the movable contact 34 at the end of the thimble 31 corresponds to the fixed contact 24, and the other end of the thimble 31 extends out of the package tube 1. Simple structure, through set up fixed contact mechanism 2 in the branch section of thick bamboo 11 at packaging barrel 1, movable contact mechanism 3 and packaging barrel 1 sliding fit, thimble 31 of movable contact mechanism 3 stretches out outside packaging barrel 1, adjustment mechanism 4 is contradicted with movable contact mechanism 3, movable contact 34 and the fixed contact 24 of thimble 31 tip correspond each other, the upper surface and the lower surface that are located lift system fixed ring roof beam and rotating ring roof beam bolt tip all set up the inspection hole that corresponds each other, detection device is located in the inspection hole and lift system electric connection, through the shift switching operating mode of bolt upper surface and lower surface detection device signal, avoid bolt and spud leg hole contact position to judge the mistake and lead to the operating system can not work, the flexible operation, safety and reliability.
Preferably, through the adjustment of the adjusting screw, on one hand, the downward moving distance of the ejector pin is determined, and on the other hand, the ejector pin can be restored to the initial position when the bolt is not in contact with the pile leg hole, so that the detection device can accurately send out signals.
In a preferred scheme, the packaging cylinder 1 is a hollow cylinder body with an opening at the upper end, and a branch cylinder 11 communicated with the packaging cylinder is arranged at the lower end. The structure is simple, when in use, the fixed contact mechanism 2 is positioned in the branch cylinder 11, and the movable contact 34 end of the movable contact mechanism 3 is positioned in the branch cylinder 11 and corresponds to the fixed contact 24 of the fixed contact mechanism 2.
Preferably, the packaging cylinder 1 is arranged in detection holes at the ends of the pins of the fixed ring beam and the movable ring beam of the lifting system.
In a preferred scheme, a retaining ring 12 is arranged on the inner wall of the branch cylinder 11, and the fixed contact mechanism 2 is positioned at the lower part of the retaining ring 12. The structure is simple, and the baffle ring 12 positioned in the branch cylinder 11 is used for limiting the position of the fixed contact 24 when in use.
In a preferred embodiment, the fixed contact mechanism 2 includes a plurality of fixed posts 22 connected to the end plate 21, and a buffer spring 23 sleeved on the fixed posts 22 abuts against the fixed contact 24. The structure is simple, during installation, the end plate 21 is connected with the end of the branch cylinder 11, and two ends of the buffer spring 23 are respectively abutted against the fixed contact 24 and the end plate 21, so that the buffer effect is achieved when the fixed contact 24 is impacted.
Preferably, the end plate 21 and the branch cylinder 11 are in threaded fit, and the rotating end plate 21 drives the buffer spring 23 to compress, so as to adjust the tension of the buffer spring 23.
Preferably, an insulating plate is disposed on one side of the fixed contact 24, and both sides of the insulating plate respectively abut against the baffle ring 12 and the buffer spring 23 on the inner wall of the branch cylinder 11.
In a preferred embodiment, the movable contact mechanism 3 includes an upper slide plate 32 and a lower slide plate 33 connected to the thimble 31, and a movable contact 34 connected to an end of the thimble 31, where the upper slide plate 32 and the lower slide plate 33 are slidably engaged with the package 1. The structure is simple, when in use, the upper slide plate 32 and the lower slide plate 33 connected with the thimble 31 slide along the inner wall of the packaging barrel 1, so that the movable contact 34 at the end part of the thimble 31 is far away from the fixed contact 24 or is contacted with the fixed contact 24.
Preferably, the end of the thimble 31 extending out of the packaging cylinder 1 is of a spherical structure, and in the process of inserting the end part of the lifting system pin into the leg hole, the spherical part of the end of the thimble 31 is in sliding contact with the inner wall of the leg hole, so that the resistance is small, the sliding is smooth, and the clamping stagnation is avoided.
Preferably, an insulating plate is disposed on one side of the movable contact 34, and the insulating plate is fixedly connected to an end of the thimble 31.
In a preferred embodiment, a sleeve 35 is provided between the upper slide plate 32 and the lower slide plate 33 to connect them to each other. The structure is simple, during use, the sleeve 35 connected between the upper sliding plate 32 and the lower sliding plate 33 improves the structural strength of the thimble 31, and the sliding stability of the upper sliding plate 32, the lower sliding plate 33 and the inner wall of the packaging barrel 1 is good.
In a preferred scheme, a guide post 36 is arranged on the lower side surface of the lower sliding plate 33, and a return spring 37 is sleeved on the guide post 36 and is abutted against the bottom of the packaging barrel 1. The structure is simple, when the thimble 31 is abutted against the inner wall of the leg hole, the movable contact 34 at the other end of the thimble 31 is driven to contact with the fixed contact 24, and after the thimble 31 is separated from the leg hole, the return spring 37 extends to drive the lower sliding plate 33 to drive the thimble 31 to move upwards, so that the movable contact 34 is separated from the fixed contact 24.
In a preferred embodiment, the guide tube 38 connected to the movable contact 34 passes through the retainer ring 12 and the fixed contact 24 to be slidably fitted thereto. The structure is simple, when in use, the guide tube 38 is connected with the movable contact 34, penetrates through the baffle ring 12 and the fixed contact 24 to be matched in a sliding mode, and simultaneously, the fixed contact 24 and the movable contact 34 are limited to rotate in the radial direction, so that the ejector pin 31 can stably slide along the axial direction of the packaging barrel 1.
In a preferred scheme, the wires connected with the fixed contact 24 and the movable contact 34 are led out of the branch cylinder 11. The structure is simple, and when the lifting device is used, the wires connected with the fixed contact 24 and the movable contact 34 are respectively electrically connected with the control unit of the lifting system.
Preferably, the wires connected with the fixed contacts 24 are led out of the branch cylinder 11 from the end plate 21, and the wires connected with the movable contacts 34 are led out of the branch cylinder 11 from the end plate 21 through the guide tube 38.
Preferably, the lifting device of the hydraulic bolt lifting system mainly comprises pile legs, a pile fixing frame, a balance assembly, a fixed ring beam, a lifting oil cylinder assembly, a movable ring beam, a bolt assembly, a bolt detection assembly and other connecting fasteners. The bolt assembly mainly comprises a support, a bolt oil cylinder, a connecting plate, a bolt, a screw plug and other connecting fasteners.
Preferably, the pile fixing frame is fixedly welded with the main deck surface of the ocean platform, the fixed ring beam is fixedly connected with the pile fixing frame through a balance assembly, the movable ring beam is hinged with the fixed ring beam through a lifting oil cylinder assembly, four groups of bolt assemblies are arranged on the periphery of the fixed ring beam, four groups of bolt assemblies are arranged on the periphery of the corresponding movable ring beam, and the support is fixedly connected with the ring beam through fastening screws; one end of the bolt oil cylinder is connected with the bracket through a pin shaft, and the other end of the bolt oil cylinder is connected with the bolt through a connecting plate; the bolt is matched with the pile leg hole to complete the platform action.
Preferably, the upper surface and the lower surface of the end part of the bolt are provided with detection holes corresponding to each other, the detection device is positioned in the detection holes, when the detection device of the upper surface of the bolt is contacted with the upper edge of the spud leg hole, the thimble moves downwards, the movable contact 34 is contacted with the fixed contact 24, and the signal of the detection device of the upper surface of the bolt is conducted; similarly, when the detection device on the lower surface of the bolt is contacted with the lower edge of the pile leg hole, the thimble moves upwards, the movable contact 34 is contacted with the fixed contact 24, the signal of the detection device on the lower surface of the bolt is switched on, and the position state of the bolt and the pile leg hole is judged effectively and timely.
Preferably, when the head of the bolt is contacted with the leg hole, the thimble moves downwards to move to L, the distance between the movable contact 34 and the fixed contact 24 is S, and the distance is 0mm to L-S to 1mm, so that the bolt can accurately send out a signal when being contacted.
Preferably, a wire hole communicated with the detection hole is formed in the bolt, and the other end of the wire hole is positioned at the tail end of the bolt; the lead is led out from the wire hole and is connected with a control unit of the lifting system.
Preferably, the plug screw is installed in the axial through hole in the head of the bolt, so that in the plugging and unplugging process of the bolt, sundries are prevented from entering the through hole of the bolt, and a cable of the detection device is protected.
Preferably, when the platform floats on the sea surface and the buoyancy is equal to the gravity of the platform, the distance from the upper side surface of the plug pin to the inner wall of the pile hole is equal to the distance from the lower side surface of the plug pin to the inner wall of the pile hole. In this state, neither the movable contact 34 nor the fixed contact 24 is in contact with the inner wall of the stake hole, and no signal is generated.
Preferably, when the platform floats on the sea surface, the distance from the upper side surface of the plug to the inner wall of the pile hole is larger than the distance from the lower side surface of the plug to the inner wall of the pile hole. In this state, the movable contact 34 of the latch underside detection means comes into contact with the fixed contact 24, and the latch underside detection means generates a signal.
Preferably, when the platform floats on the sea surface and the buoyancy is larger than the gravity of the platform, the distance from the upper side surface of the plug pin to the inner wall of the pile hole is smaller than the distance from the lower side surface of the plug pin to the inner wall of the pile hole. In this state, the movable contact 34 of the side detection means on the plug comes into contact with the fixed contact 24, and the side detection means on the plug generates a signal.
In a preferred embodiment, the method for detecting the position of the bolt and the leg hole includes the following steps:
s1, mounting, namely mounting the detection devices in detection holes at the end parts of beam pins of the pin lifting system respectively, wherein the extension ends of the ejector pins 31 are positioned outside the detection holes, and lead wires of the two detection devices are led out from wire holes in the pins and connected with the pin lifting system; the upper surface and the lower surface of the end part of the bolt of the fixed ring beam and the movable ring beam are provided with detection holes corresponding to each other;
s2, in an initial state, inserting the pile leg into the sea bottom, lifting the platform above the sea level, and inserting the movable ring beam bolt into the pile leg hole;
s3, performing initial action, performing lifting oil cylinder action, and inserting a fixed ring beam bolt into a pile leg hole; a thimble 31 of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted with the spud leg hole and retracts into the packaging cylinder 1, and the movable contact 34 is contacted with the fixed contact 24 to conduct a signal that the fixed ring beam plug pin is inserted;
s4, the movable ring beam acts, when the bolt lifting system receives a signal that the fixed ring beam bolt is inserted, the movable ring beam bolt is pulled out of the pile leg hole, the lifting oil cylinder extends to the longest, and the movable ring beam bolt is inserted into the pile leg hole again; a thimble 31 of the detection device positioned on the lower side surface of the bolt of the movable ring beam is abutted with the spud leg hole and retracts into the packaging cylinder 1, and the movable contact 34 is contacted with the fixed contact 24 to conduct a signal that the bolt of the movable ring beam is inserted; in the process, after the bolt of the movable ring beam is pulled out of the pile leg hole, the movable contact 34 is separated from the fixed contact 24, and no signal exists;
s5, the fixed ring beam acts, when the bolt lifting system receives a signal that the bolt of the movable ring beam is inserted, the bolt of the fixed ring beam is pulled out of the pile leg hole, the lifting oil cylinder is reset, and the bolt of the fixed ring beam is inserted into the pile leg hole again; a thimble 31 of the detection device positioned on the lower side surface of the fixed ring beam plug pin is abutted with the spud leg hole and retracts into the packaging cylinder 1, and the movable contact 34 is contacted with the fixed contact 24 to conduct a signal that the fixed ring beam plug pin is inserted; in the process, after the fixed ring beam plug pin is pulled out of the pile leg hole, the movable contact 34 is separated from the fixed contact 24, and no signal exists;
s6, descending the platform, and repeating S4-S5 in sequence; in the step, the platform connected with the fixed frame descends synchronously along with the fixed frame, and the fixed ring beam bolt and the movable ring beam bolt are alternately inserted into the pile leg hole to complete load transfer until the platform descends to the sea level;
s7, continuing to descend the platform, and when the buoyancy is larger than the gravity of the platform, the thimble 31 of the side detection device on the thimble of any fixed ring beam or movable ring beam is propped against the spud leg hole and retracts into the packaging cylinder 1, and the movable contact 34 is contacted with the fixed contact 24; at the moment, signals of the detection device on the lower side surface of the plug pin are transferred to the detection device on the upper side surface of the plug pin; the working condition of the platform must be switched to the working condition of the pile leg, the load transfer is carried out on the plug pins, then the pile is pulled out under the working condition of pile pulling, otherwise, the load transfer cannot be carried out on the plug pins, and the lifting system cannot act. The method is simple and convenient to operate, and effectively prevents the pile clamping leg hole, the pile supporting leg hole and the protection pile leg hole from being mistakenly operated during the lifting action, and increases misoperation alarm.
When the device and the method for detecting the positions of the pins and the pile leg holes are installed and used, the fixed contact mechanism 2 is arranged in the branch cylinder 11 of the packaging cylinder 1, the movable contact mechanism 3 is in sliding fit with the packaging cylinder 1, the ejector pins 31 of the movable contact mechanism 3 extend out of the packaging cylinder 1, the adjusting mechanism 4 is abutted against the movable contact mechanism 3, the movable contacts 34 at the end parts of the ejector pins 31 correspond to the fixed contacts 24, the upper surfaces and the lower surfaces of the pin end parts of the fixed ring beam and the movable ring beam of the lifting system are provided with the corresponding detection holes, the detection devices are arranged in the detection holes and are electrically connected with the lifting system, and the working condition is switched through the transfer of the detection device signals on the upper surfaces and the lower surfaces of the pins, so that the lifting system cannot work due to the misjudgment of the contact positions of the pins and the pile leg holes is avoided, and the device and the method are flexible to operate, safe and reliable.
When in use, the fixed contact mechanism 2 is positioned in the branch cylinder 11, and the movable contact 34 end of the movable contact mechanism 3 is positioned in the branch cylinder 11 and corresponds to the fixed contact 24 of the fixed contact mechanism 2.
In use, the retainer ring 12 located within the branch cylinder 11 serves to define the position of the fixed contact 24.
When the device is installed, the end plate 21 is connected with the end of the branch cylinder 11, and two ends of the buffer spring 23 are respectively abutted against the fixed contact 24 and the end plate 21, so that the buffer effect is achieved when the fixed contact 24 is impacted.
In use, the upper slide plate 32 and the lower slide plate 33 connected with the thimble 31 slide along the inner wall of the packaging barrel 1, so that the movable contact 34 at the end of the thimble 31 is far away from the fixed contact 24 or is in contact with the fixed contact 24.
When the thimble structure is used, the sleeve 35 connected between the upper slide plate 32 and the lower slide plate 33 improves the structural strength of the thimble 31, and the upper slide plate 32 and the lower slide plate 33 have good sliding stability with the inner wall of the package barrel 1.
When the thimble 31 is abutted against the inner wall of the leg hole, the movable contact 34 at the other end of the thimble 31 is driven to contact with the fixed contact 24, and after the thimble 31 is separated from the leg hole, the return spring 37 extends to drive the lower sliding plate 33 to drive the thimble 31 to move upwards, so that the movable contact 34 is separated from the fixed contact 24.
When in use, the guide tube 38 is connected with the movable contact 34, penetrates through the retaining ring 12 and the fixed contact 24 to be in sliding fit, and simultaneously limits the radial rotation of the fixed contact 24 and the movable contact 34, so that the thimble 31 stably slides along the axial direction of the packaging barrel 1.
In use, the wires connecting the fixed contact 24 and the movable contact 34 are electrically connected to the control unit of the elevator system, respectively.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (9)
1. The utility model provides a bolt and spud leg hole position detection device which characterized by: the device comprises a packaging cylinder (1), a fixed contact mechanism (2), a movable contact mechanism (3) and an adjusting mechanism (4); the fixed contact mechanism (2) is positioned in a branch cylinder (11) of the packaging cylinder (1), the movable contact mechanism (3) is in sliding fit with the packaging cylinder (1), a sealing plate (41) of the adjusting mechanism (4) is matched with the packaging cylinder (1), and an adjusting screw (42) is abutted against an upper sliding plate (32) of the movable contact mechanism (3); a movable contact (34) at the end part of the thimble (31) corresponds to the fixed contact (24), and the other end of the thimble (31) extends out of the packaging cylinder (1);
the detection method comprises the following steps:
s1, mounting, namely mounting the detection devices in detection holes at the end parts of beam pins of the pin lifting system respectively, wherein the extension ends of the ejector pins (31) are positioned outside the detection holes, and leads of the two detection devices are led out from wire holes in the pins and are connected with the pin lifting system; the upper surface and the lower surface of the end part of the bolt of the fixed ring beam and the movable ring beam are provided with detection holes corresponding to each other;
s2, in an initial state, inserting the pile leg into the sea bottom, lifting the platform above the sea level, and inserting the movable ring beam bolt into the pile leg hole;
s3, performing initial action, performing lifting oil cylinder action, and inserting a fixed ring beam bolt into a pile leg hole; a thimble (31) of the detection device positioned on the lower side surface of the fixed ring beam bolt is abutted against the pile leg hole and retracts into the packaging cylinder (1), and a movable contact (34) is contacted with a fixed contact (24) to conduct a signal that the fixed ring beam bolt is inserted;
s4, the moving ring beam acts, when the bolt lifting system receives a signal that the fixed ring beam bolt is inserted, the moving ring beam bolt is pulled out of the pile leg hole, the lifting oil cylinder extends to the longest, and the moving ring beam bolt is inserted into the pile leg hole; a thimble (31) of the detection device positioned on the lower side surface of the bolt of the movable ring beam is abutted against the pile leg hole and is retracted into the packaging cylinder (1), and a movable contact (34) is contacted with a fixed contact (24) to conduct a signal that the bolt of the movable ring beam is inserted; in the process, after the bolt of the movable ring beam is pulled out of the pile leg hole, the movable contact (34) is separated from the fixed contact (24) and no signal is generated;
s5, the fixed ring beam acts, when the bolt lifting system receives a signal that the bolt of the movable ring beam is inserted, the bolt of the fixed ring beam is pulled out of the pile leg hole, the lifting oil cylinder is reset, and the bolt of the fixed ring beam is inserted into the pile leg hole again; a thimble (31) of the detection device positioned on the lower side surface of the fixed ring beam bolt is abutted against the pile leg hole and retracts into the packaging cylinder (1), and a movable contact (34) is contacted with a fixed contact (24) to conduct a signal that the fixed ring beam bolt is inserted; in the process, after the fixed ring beam plug pin is pulled out of the pile leg hole, the movable contact (34) is separated from the fixed contact (24) and no signal is generated;
s6, descending the platform, and repeating S4-S5 in sequence; in the step, the platform connected with the fixed frame descends synchronously along with the fixed frame, and the fixed ring beam bolt and the movable ring beam bolt are alternately inserted into the pile leg hole to complete load transfer until the platform descends to the sea level;
s7, the platform is continuously lowered, when the buoyancy is larger than the gravity of the platform, the thimble (31) of the side detection device on any fixed ring beam or moving ring beam thimble is pressed against the spud leg hole and retracts into the packaging cylinder (1), and the movable contact (34) is contacted with the fixed contact (24); at the moment, signals of the detection device on the lower side surface of the plug pin are transferred to the detection device on the upper side surface of the plug pin; the working condition of the platform must be switched to the working condition of the pile leg, the load transfer is carried out on the plug pins, then the pile is pulled out under the working condition of pile pulling, otherwise, the load transfer cannot be carried out on the plug pins, and the lifting system cannot act.
2. The latch and leg hole position detection device of claim 1, further comprising: the packaging cylinder (1) is a hollow cylinder body with a hole at the upper end, and a branch cylinder (11) communicated with the packaging cylinder is arranged at the lower end.
3. The pin and leg hole position detection device of claim 1, wherein: a baffle ring (12) is arranged on the inner wall of the branch cylinder (11), and the fixed contact mechanism (2) is positioned on the lower portion of the baffle ring (12).
4. The latch and leg hole position detection device of claim 1, further comprising: the fixed contact mechanism (2) comprises a plurality of fixed columns (22) connected with the end plate (21), and a buffer spring (23) sleeved on each fixed column (22) is abutted against the fixed contact (24).
5. The latch and leg hole position detection device of claim 1, further comprising: the movable contact mechanism (3) comprises an upper sliding plate (32) and a lower sliding plate (33) which are connected with the ejector pin (31), and a movable contact (34) which is positioned at the end part of the ejector pin (31) and is connected with the end part of the ejector pin (31), wherein the upper sliding plate (32) and the lower sliding plate (33) are in sliding fit with the packaging barrel (1).
6. The latch and leg hole position detection device of claim 5, wherein: an interconnecting sleeve (35) is arranged between the upper sliding plate (32) and the lower sliding plate (33).
7. The pin and leg hole position detection device of claim 5, wherein: the downside of slide down (33) sets up guide post (36), and reset spring (37) cover is located and is contradicted with packaging section of thick bamboo (1) bottom on guide post (36).
8. The latch and leg hole position detection device of claim 5, wherein: the guide tube (38) connected with the movable contact (34) penetrates through the baffle ring (12) and the fixed contact (24) to be in sliding fit with the baffle ring.
9. The pin and leg hole position detection device of claim 1, wherein: and the lead connected with the fixed contact (24) and the movable contact (34) is led out of the branch cylinder (11).
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| CN202110272720.3A CN113062370B (en) | 2021-03-12 | 2021-03-12 | Device and method for detecting positions of bolt and pile leg hole |
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