CN112355596B

CN112355596B - Underwater control module mounting tool

Info

Publication number: CN112355596B
Application number: CN202011173310.5A
Authority: CN
Inventors: 贾鹏; 王向宇; 张锦埭; 王刚; 王立权; 运飞宏; 孙铭权; 王洪海
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-10-26
Anticipated expiration: 2040-10-28
Also published as: CN112355596A

Abstract

The invention provides an underwater control module installation tool which comprises a lifting unit, a locking unit, an upper top plate and a lower cylinder. The SCM installation tool and the locking unit are hoisted through the hoisting unit; the locking of an underwater control module (SCM) installation tool and an underwater control module and the locking of the SCM and the SCMB are realized through a locking unit; soft landing of the SCM is realized through a hydraulic system on the upper top plate; locking of the SCM installation tool and the guide cylinder and observation of SCM lowering installation process by a diver/ROV are achieved through the lower cylinder body. The invention has simple operation and stable and reliable structure.

Description

Underwater control module mounting tool

Technical Field

The invention relates to an underwater control module installation tool, and belongs to the field of marine petroleum engineering.

Background

With the development of underwater oil fields from 1960, the installation number of Christmas trees is rapidly increased, and the development of an underwater production system puts higher requirements on an underwater control module, wherein the control distance reaches 100km, the water depth reaches 3000m, and the pressure is 103 MPa. This is because SCM systems become more complex, data collection is more accurate, response time is faster, and overall performance is improved, leading to increasingly frequent installation of subsea control modules. The ocean engineering equipment is not only the development of novel equipment, but also the improvement and the extension of the existing equipment, which means that the new installation technology capability needs to be matched with the existing equipment to meet the requirements of the existing equipment on the installation technology.

The underwater control module is an execution device of the underwater control system. The device is a set of underwater control equipment which can be independently designed, debugged and installed, serialized and standardized, is used for completing the opening and closing of a valve on an underwater production facility and feeding parameters and seabed information on the underwater production facility back to a ground main control station in real time. The underwater control module comprises a hoisting locking mechanism, an underwater electronic module, a hydraulic system, a pressure compensator, an upper butt joint disc, a lower butt joint disc and the like.

The installation and recovery of the subsea control module is performed along with the daily production of the whole oil field, and the SCM installation and recovery technology is important because the SCM has high failure rate, and the failure rate of the SCM reaches 30.64% of the whole subsea production system in various devices in the subsea production system. It can be seen that the maintenance and replacement of the SCM is particularly important, which is also a major reason for underwater docking of SCMs.

The underwater control module installation tool is a mechanical device for performing SCM (Single chip Microcomputer) lowering and recovering tasks. According to the factors of the installation depth of the underwater production facility, sea conditions and the like, installation and recovery of the underwater control module must be provided with corresponding installation tools, wherein the related key technologies comprise a lowering recovery technology, an underwater buffering technology, a butt joint locking technology and the like.

Disclosure of Invention

The invention mainly aims to provide an emergency recovery tool capable of being used when an underwater control module is in fault or damaged, which realizes the following steps: (1) locking of the SCM installation tool and the SCM; (2) soft-landing and locking with SCM (3) locking of SCM installation tool and guide cylinder.

The purpose of the invention is realized as follows: including hoisting unit, locking unit, go up the head disk, barrel, control module, direction section of thick bamboo part under water, hoisting unit sets up on last head disk, the locking unit is connected with hoisting unit through hoisting unit's locking dish, and lower barrel is connected with last head disk through the piston rod of the hydraulic system on last head disk, and the during operation, control module places in the direction section of thick bamboo part and locks with SCMB under water, and lower barrel internal surface is provided with the key slot complex direction keyway with the control module outside under water key complex, the surface is provided with the keyway complex direction key with direction section of thick bamboo part internal surface.

The invention also includes such structural features:

1. the lifting unit comprises a lifting shell, a hoisting disc arranged at the upper end of the lifting shell and two locking discs symmetrically arranged on the end face of the lifting shell.

2. The locking unit comprises a lifting mandrel arranged between two locking discs, a lifting mandrel mounting disc arranged at the lower end of the lifting mandrel, a switch cylinder connected with the lifting mandrel mounting disc, a tool and underwater control module locking mechanism, an underwater control module and a SCMB locking mechanism, wherein the tool and underwater control module locking mechanism comprises two cam sleeves arranged on the switch cylinder, an interlocking cam and a locking cam which are respectively arranged in the two cam sleeves, a locking switch connected with the locking cam, an interlocking switch connected with the interlocking cam, a steel ball sleeve arranged at the lower end of the switch cylinder, a locking core arranged in the steel ball sleeve, a long stud arranged at the upper end of the locking core, a moving disc arranged at the end of the long stud, a spring arranged between the moving disc and the inner top of the switch cylinder, the moving disc is contacted with the locking cam under the action of the spring, and the steel ball is arranged on the steel ball sleeve, a groove matched with the steel ball is arranged on the locking core; the underwater control module and SCMB locking mechanism comprises a shaft sleeve arranged on a switch cylinder, a driving shaft arranged in the shaft sleeve, a rotary switch connected with one end of the driving shaft, a bevel gear I arranged on the other end of the driving shaft, a driven shaft arranged on a flange plate at the lower end of the switch cylinder through a bearing, a bevel gear II arranged at the upper end of the driven shaft, a locking core penetrating through the lower end of the driven shaft and a self-adaptive sleeve connected with the end part of the driven shaft, a steel rod and a steel rod spring arranged on the inner surface of the self-adaptive sleeve, wherein the steel rod and the steel rod spring are arranged in a hexagon shape; the steel ball is matched with a groove in the hoisting port of the underwater control module to realize locking and unlocking between the tool and the underwater control module, and the self-adaptive sleeve drives the SCM lead screw to rotate to realize locking between the underwater control module and the SCMB.

3. The upper top plate comprises an upper top plate connected with the lower end of the lifting shell and a hydraulic system arranged at the upper end of the upper top plate, the hydraulic system is provided with three hydraulic cylinders and corresponding operation panels, and piston rods of the three hydraulic cylinders are connected with the upper end of the lower barrel.

4. The guide cylinder part comprises a guide cylinder support, a guide cylinder arranged on the guide cylinder support, a tool arranged at the upper end of the guide cylinder and a guide cylinder locking mechanism, the SCMB is arranged in the guide cylinder, and the tool and the guide cylinder locking mechanism realize the connection of the guide cylinder and the lower cylinder body.

5. The locking unit also comprises an indicating mechanism, the indicating mechanism comprises an indicating disc, an indicating screw, a threaded guide rod and an indicating cushion block, and the threaded guide rod is arranged on the driving shaft and moves in a horizontal groove on the shaft sleeve; the indicating dial is installed on the shaft sleeve through indicating screw and indicating cushion block, and the rotation of drive indicating dial through the motion of screw thread guide arm realizes the instruction function.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention ensures that the locking unit can generate slight horizontal movement or inclination in the lifting unit by adopting the groove structure on the locking disc to be connected with the lifting spindle of the locking unit, thereby ensuring the accurate and safe installation of the SCM in the SCM installation and recovery process.

2. The locking and unlocking of the tool and the SCM are realized through the cam, the cam is eccentrically locked through the combination of the spring and a limiting mode (a screw or a boss) on the cam sleeve, the position of the cam in the unlocking state is guaranteed, and the locking mechanism is simple in structure and reliable in function.

3. According to the invention, the connecting position of the tool and the guide cylinder and the butt joint completion position of the SCM and the SCMB are indicated by adopting the indicating lines, and the positive direction of the tool landing and the accuracy of SCM installation are ensured by the guide key in the lower cylinder body.

4. The lifting synchronization rate of three hydraulic cylinders uniformly distributed in the SCM soft landing process is ensured by using the adjustable one-way throttle valve with pressure compensation.

Drawings

FIG. 1 is a general block diagram of an SCM installation tool of the present invention;

FIG. 2 is a schematic diagram of a Subsea Control Module (SCM) of the present invention;

FIG. 3 is a schematic view of a guide cylinder assembly according to the present invention;

FIG. 4 is a structural view of a lifting unit of the present invention;

FIG. 5 is a view showing the construction of a locking unit of the present invention;

FIG. 6 is a right side cross-sectional view of the locking unit of the present invention;

FIG. 7 is a block diagram of an indicating mechanism of the present invention;

FIG. 8 is a top land structure diagram of the present invention;

FIG. 9 is a hydraulic schematic of the present invention;

fig. 10 is a view showing the structure of the lower cylinder of the present invention.

FIG. 11 is a schematic view of the locking structure of the tool and the guide cylinder of the present invention

The main reference numbers in the figures illustrate:

1. a lifting unit, 101, a hoisting disc, 102, a lifting shell, 103, a

locking disc

2, 104, a locking disc 1; 2. the locking mechanism comprises a locking unit, 201, a lifting mandrel, 202, a lifting mandrel mounting plate, 203, a cam sleeve, 204, an interlocking switch, 205, an interlocking cam, 206, a steel ball sleeve, 207, a steel ball, 208, a locking core, 209, a switch barrel, 210, a long stud, 211, a locking cam, 212, a locking switch, 213, a movable plate, 214, a spring, 215, a shaft sleeve, 216, a driving shaft, 217, a bevel gear, 218, a driven shaft, 219, an adaptive sleeve, 220, a steel rod, 221, a steel rod spring, 222, a bearing, 223, a bearing cover, 224, an indicating plate, 225, an indicating screw, 226, a threaded guide rod, 227, an indicating cushion block, 228, a jackscrew and 229, and a rotary switch; 3. an upper top plate, 301, a hydraulic system, 303, an operation panel, 302, an upper top plate; 4. a lower cylinder body; 5. an underwater control module (SCM); 6. the guide cylinder component 601, the tool and guide cylinder locking structure 601-1, the pin 601-2, the locking rod 601-3, the gasket 601-4, the locking nut 602, the guide cylinder 603, the SCMB 604 and the guide cylinder support.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the present invention includes a lifting unit 1, a locking unit 2, an upper top plate 3, a lower cylinder 4, and a guide cylinder member 6. The locking unit 2 is connected with the lifting unit 1 through

locking discs

103 and 104; the lifting unit is fixed with the upper top plate 302 through bolts; the lower cylinder body 4 is connected with the upper top plate through a piston rod of a hydraulic cylinder in the hydraulic system of the upper top plate 3.

With reference to fig. 4, the lifting unit 1 comprises: hoisting plate 101, lifting shell 102, locking plate 2103, locking plate 1104. The locking disk 1104 is connected with the locking disk 2103 through a screw, and then the locking disk is fixed with the lifting shell 102 through the screw, so that the locking disk and the lifting shell are ensured not to move relatively during working; the hoisting disc 101 is connected with the hoisting shell through bolts.

With reference to fig. 5-7, the locking unit 2 includes a lifting spindle 201, a switch cylinder 209, a tool and SCM locking mechanism, a SCM and scmb locking mechanism, and an indicating mechanism. The lifting mandrel is connected with the switch cylinder through a bolt; the tool and the SCM locking mechanism are connected with the switch cylinder through a locking cam sleeve, and the steel ball sleeve is connected with the switch cylinder through a bolt; the SCM and SCMB locking mechanism is connected with the switch cylinder through a cam sleeve. The upper top plate comprises an upper top plate, an operation panel and a hydraulic system. A flange and a valve block of a hydraulic cylinder body in the hydraulic system are arranged on an upper top plate; the Hotstab interface in the hydraulic system is arranged on an operation panel; the operation panel is arranged on the upper top plate.

The guide cylinder component comprises a guide cylinder, a base, a tool and a guide cylinder locking mechanism. The guide cylinder is connected with the base through a bolt; the tool and guide cylinder locking mechanism are connected with the guide cylinder through a pin.

The tool and SCM locking mechanism includes: the lifting spindle comprises a lifting spindle mounting plate 202, an interlocking switch 204, an interlocking cam 205, a spring 214, a moving plate 213, a locking switch 212, a locking cam 211, a long stud 210, a switch cylinder 209, a locking core 208, a steel ball 207 and a steel ball sleeve 206. The interlocking cam 205 and the locking cam 211 are connected with the cam sleeve 203 through a jackscrew 228; the interlock switch 204 and the lock switch 212 are connected to the cam by screws; the cam sleeve 203 is mounted on the switch cylinder 209; the moving plate 213 is contacted with the locking cam 211 under the action of a spring and is connected with the long stud 210; the long stud is arranged on the top of the locking core 208; the steel ball 207 is arranged inside the steel ball sleeve 206; the steel ball sleeve 206 is connected with the switch cylinder 209 through bolts. Namely, the interlocking switch is connected with the interlocking cam through a screw; the locking switch is connected with the locking cam through a screw; the interlocking cam and the locking cam are connected with the switch barrel through the cam sleeve; the moving disc is contacted with the locking cam through a spring and is connected with the locking core through three uniformly distributed long studs; the steel ball is placed in a steel ball groove of the steel ball sleeve; the steel ball sleeve is connected with the switch cylinder through a bolt.

The SCM and scmb locking mechanism includes: the device comprises a shaft sleeve 215, a driving shaft 216, a bevel gear 217, a driven shaft 218, a self-adaptive sleeve 219, a steel rod 220, a steel rod spring 221, a bearing 222 and a bearing cover 223. The shaft sleeve 215 is arranged on the switch cylinder 209; one end of the driving shaft is connected with a bevel gear and is fixed by a spline nut and a fastening washer, and the other end of the driving shaft is connected with a rotary switch 229 and is connected with the shaft sleeve 215 by a jackscrew 228; the driven shaft 218 is matched with a bearing 222, the upper end of the driven shaft is connected with a bevel gear 217, and the lower end of the driven shaft is connected with a self-adaptive sleeve 219; the bearing is arranged on the steel ball sleeve 206 and limited by the bearing cover 223; the steel rod 220 is connected with a steel rod spring 221 and is arranged inside the adaptive sleeve. Namely, the rotary switch is connected with the driving shaft through a screw; the shaft sleeve is fixed on the switch cylinder; the pair of bevel gears is connected with the driving shaft and the driven shaft; the driven shaft is connected with the self-adaptive sleeve screw; the steel rod and the spring are arranged in the self-adaptive sleeve.

The indicating mechanism includes: indicator disk 224, indicator screw 225, threaded guide 226, indicator pad 227. A threaded guide 226 is mounted on the drive shaft and moves in a horizontal slot in the bushing 215; the indicating plate 224 is mounted on the shaft sleeve 215 through an indicating screw 225 and an indicating cushion block 227, and the indicating plate 224 is driven to rotate through the movement of a threaded guide rod 226, so that the indicating function is realized. Namely the threaded guide rod is in threaded connection with the driving shaft, and the guide rod part is positioned in the grooves of the shaft sleeve and the indicating disc; the indicating dial is installed on the shaft sleeve through the indicating bolt, the indicating gasket and the indicating cushion block.

Referring to fig. 8 and 9, the upper top plate includes: hydraulic system 301, operation panel 303, upper plate 302. The hydraulic system comprises a Hotstab interface, a hydraulic cartridge valve, a valve block, a hydraulic cylinder and a hydraulic pipeline. The Hotstab interface is connected with an operation panel through screws; the hydraulic cartridge valve is arranged on the valve block and comprises a three-position four-way reversing valve, a pressure reducing valve and a one-way throttle valve with adjustable pressure compensation, wherein the three-position four-way reversing valve is connected with a standard interface on the operation panel through a coupler so as to be convenient for a diver or an ROV to operate; both the valve block and the hydraulic cylinder are bolted to the upper top plate 302. Namely, the Hotstab interface is arranged on the operation panel; the pressure reducing valve, the reversing valve and the flow control valve are arranged on the valve block; the hydraulic cylinder body is arranged on the upper top plate, and the piston rod is in threaded connection with the lower cylinder body.

Referring to fig. 10, the lower cylinder 4 mainly includes: guide way, guide key, pilot line and observation hole. The guide groove is arranged in the lower cylinder body 4 and plays a guiding role when the SCM is recovered; the guide key is arranged outside the lower cylinder body 4 and used for guiding in the guide cylinder part when the SCM installation tool is lowered; the indicator line is used for indicating whether the SCM installation tool is landed in place; the observation hole is used for observing the SCM and SCMM docking processes; in addition, three grooves are formed in the upper surface of the lower barrel 4 and used for placing the gaskets 601-3 and placing the SCM installing tool to rotate circumferentially.

Referring to fig. 3 and 11, the guide cylinder member 6 includes: the tool and guide cylinder locking structure 601, the pin 601-1, the locking rod 601-2, the gasket 601-3, the locking nut 601-4, the guide cylinder 602, the SCMB 603 and the guide cylinder bracket 604. The lock rod 601-2 is arranged on lifting lugs uniformly distributed on the guide cylinder 602 through pins 601-1; the gasket 601-3 and the locking nut 601-4 are arranged on the locking rod 601-2; a guide groove is formed in the guide cylinder and matched with a guide key of the lower cylinder body 4, an indication line indicates whether the tool is in place or not and whether the SCM is completely butted or not, and an observation hole is used for observing the SCM butting process; the guide cylinder 602 and scmb 603 are mounted on a guide cylinder holder 604.

The locking discs 1 and 2 are provided with parallel notches to ensure the positive direction of the connected locking units; the upper surface is recessed to allow slight translation or tilting of the locking unit. The cam shaft and the driving shaft are provided with grooves which are matched with a lead screw on the cam sleeve or the shaft sleeve to limit the axial movement of the cam mechanism and the driving shaft. The contact surface of the cam sleeve and the interlocking switch or the locking switch limits the interlocking switch and the locking switch through screws or processing bosses. The barrel is inside to have SCM direction keyway down, and there is SCM mounting tool guide key outside, and has observation hole and pilot line, is used for observing that SCM transfers butt joint and SCM mounting tool and whether lands completely. The tool and guide cylinder locking mechanism comprises a locking rod, a gasket and a locking nut. The lock rod is connected with the guide cylinder through a pin; the locking nut is in threaded connection with the locking rod.

The invention adopts the following installation steps:

the first step is as follows: the locking unit 2 is installed. A steel rod 220 and a steel rod spring 221 are arranged in a self-adaptive sleeve 219 and are connected with a driven shaft 218, and a bevel gear 217 is arranged; connecting a spring 214 and a moving plate 213 with the locking core 208 through the long stud 210, and placing the steel ball 207 in the steel ball sleeve 206; installing the interlocking cam 205, the cam sleeve 203, the locking cam 211 and the cam sleeve 203, and limiting the position of the movable disc 213; the driving shaft 216 and the shaft sleeve 215 are installed, and a threaded guide rod 226, an indicating plate 224, an indicating screw 225 and the like are installed on the driving shaft 216 and the shaft sleeve 215; the driven shaft 218 is connected with the steel ball sleeve 206 through a bearing 222, a bearing cover 223 and the like; bolting the lifting spindle 201 to the lifting spindle mounting plate 202; the lifting spindle mounting plate 202 and the switch cylinder 209 are connected through bolts; the switch cylinder 209 is connected with the steel ball sleeve 206 through bolts; the installation of the locking unit 2 is completed.

The second step is that: the lifting unit 1 and the locking unit 2 are installed. Mounting the locking unit 2 into the lifting housing 102; mounting the locking plate 1104 and the locking plate 2103 into the lifting housing 102 and connecting by screws; the lifting plate 101 is bolted to the lifting housing 102.

The third step: the lock switch 212, the interlock switch 204, and the rotary switch 229 are mounted to the camshaft and the drive shaft 216 by screws.

The fourth step: the lifting unit 1 is bolted to the upper top plate 302.

The fifth step: a hydraulic system 301 is installed. Mounting the valve block to the upper top plate 302; an operation panel 303 is mounted on the upper top plate 302; mounting the hydraulic cylinder to the upper top plate 302; mounting the hydraulic cartridge valve on the valve block; the hotspot connector is mounted on the operation panel 303; and a hydraulic pipeline connecting the Hotstab, the hydraulic valve block and the hydraulic cylinder.

And a sixth step: the piston rod of the hydraulic cylinder is connected with the lower cylinder body 4.

The seventh step: the guide cylinder member 6 is mounted. Connecting the lock rod 601-2 with the guide cylinder pin 601-1; mounting the washer 601-3 and the lock nut 601-4 to the lock bar 601-2; the guide cylinder 602 and scmb 603 are mounted to the guide cylinder holder 604.

The working principle of the invention is as follows:

the underwater control module mounting tool realizes the connection and floating functions of the locking unit and the lifting unit through the locking disc; the cam mechanism drives the steel balls to be locked to realize connection with the SCM; locking of the SCM and the SCMM is realized through the self-adaptive sleeve; the soft landing of the SCM and the butt joint of SCM electric and liquid joints are realized through a hydraulic system; the locking of the tool and the guide cylinder is realized through the locking structure of the tool and the guide cylinder.

The working principle of each component is as follows:

the lifting unit 1: the hoisting of the SCM installation tool is accomplished by the hoisting plate 101, by the locking plate being connected to the locking unit 2 and by the opened recess achieving a horizontal movement and a slight inclination of the locking unit 2, the lifting housing 102 is opened with openings for the installation of the interlock switch 204, the locking switch 212 and the rotary switch 229.

The locking unit 2:

(1) the tool is locked with the SCM.

A diver or an ROV controls the position lifting and the position state maintaining of the movable disc 213 by operating the interlocking switch 204 and the locking switch 212, the movement of the movable disc 213 is transmitted to the locking core 208 through the long stud 210, the lifting of the locking core 208 has the function of driving the steel ball 207 in the steel ball sleeve 206 to rise and leave a retraction space, so that the steel ball 207 is matched with a groove in the SCM hanging opening, and the locking and the unlocking between the tool and the SCM are realized.

(2) SCM and SCMM locking

The diver or the ROV operates the rotary switch 229 and changes the motion transmission direction through the bevel gear 217, so that the SCM lead screw is driven to rotate through the adaptive sleeve 219, and the SCM and SCMM locking is realized. The adaptive sleeve 219 is comprised of a series of steel rods 220 and rod springs 221, and is characterized by a high torque transfer capability and adaptability to various sizes and positions of the associated interfaces.

(3) Indication of

Because the diver or ROV drives the driving shaft to rotate for more than 1 circle, the indicating structure is designed, the threaded guide rod 226 is connected with the driving shaft 216 through threads and moves in a horizontal groove on the shaft sleeve 215, so that the threaded guide rod 226 moves axially and horizontally, and meanwhile, the threaded guide rod 226 is matched with a chute on the indicating disc 224, so that the indicating disc 224 is driven to rotate around the indicating screw 225, and the indicating function is realized. I.e. the combination of the nut-screw principle and the slider-crank principle.

The upper top plate 3: the soft landing of the SCM and the butt joint of the electric joint and the liquid joint are realized through a hydraulic system 301; among this hydraulic system, hydraulic pressure source on water transmits for SCM mounting tool's hydraulic system through the hotspot interface, reduces the oil pressure to required pressure through the relief pressure valve, and the lift of pneumatic cylinder is then realized through changing hydraulic pressure direction of transfer to the manual switching-over valve, and pressure compensation's adjustable one-way throttle valve is used for controlling the lifting speed of pneumatic cylinder and the synchronism that the three pneumatic cylinder of assurance equipartition goes up and down.

A lower cylinder 4: a guide key slot matched with the SCM guide key is formed in the lower cylinder body, so that the SCM is ensured to be in the positive direction when being recovered, and the guide function is realized; a guide key is arranged outside and is used for matching with a guide groove of the guide cylinder 602; meanwhile, an indicating line is coated on the outer part of the guide cylinder and used for indicating the landing positions of the tool and the guide cylinder; an observation hole is opened down for observing the installation process of the SCM.

Guide cylindrical member 6: after the SCM installation tool is completely landed in the guide cylinder, a diver pulls up the lock rod 601-2 and rotates the lock nut 601-4 to lock the tool and the guide cylinder; the guide groove is formed in the guide cylinder 602, so that the SCM installation tool has a guide function when landing, and the tool can accurately land in the guide cylinder, so that the SCM installation and recovery process can be smoothly completed.

In summary, the invention discloses an underwater control module installation tool, which comprises a lifting unit, a locking unit, an upper top plate and a lower cylinder. The SCM installation tool and the locking unit are hoisted through the hoisting unit; the locking of an underwater control module (SCM) installation tool and an underwater control module and the locking of the SCM and the SCMB are realized through a locking unit; soft landing of the SCM is realized through a hydraulic system on the upper top plate; locking of the SCM installation tool and the guide cylinder and observation of SCM lowering installation process by a diver/ROV are achieved through the lower cylinder body. The invention has simple operation and stable and reliable structure.

Claims

1. An underwater control module installation tool, characterized in that: the underwater control device comprises a lifting unit, a locking unit, an upper top plate, a lower cylinder, an underwater control module and a guide cylinder component, wherein the lifting unit is arranged on the upper top plate, the locking unit is connected with the lifting unit through the locking plate of the lifting unit, the lower cylinder is connected with the upper top plate through a piston rod of a hydraulic system on the upper top plate, the underwater control module is placed in the guide cylinder component and locked with SCMB (Single chip MultiMedia multimedia broadcasting) during working, a guide key groove matched with a key outside the underwater control module is arranged on the inner surface of the lower cylinder, and a guide key matched with a key groove on the inner surface of the guide cylinder component is arranged on the outer surface of the lower cylinder; the lifting unit comprises a lifting shell, a hoisting disc arranged at the upper end of the lifting shell and two locking discs symmetrically arranged on the end face of the lifting shell; the locking unit comprises a lifting mandrel arranged between two locking discs, a lifting mandrel mounting disc arranged at the lower end of the lifting mandrel, a switch cylinder connected with the lifting mandrel mounting disc, a tool and underwater control module locking mechanism, an underwater control module and a SCMB locking mechanism, wherein the tool and underwater control module locking mechanism comprises two cam sleeves arranged on the switch cylinder, an interlocking cam and a locking cam which are respectively arranged in the two cam sleeves, a locking switch connected with the locking cam, an interlocking switch connected with the interlocking cam, a steel ball sleeve arranged at the lower end of the switch cylinder, a locking core arranged in the steel ball sleeve, a long stud arranged at the upper end of the locking core, a moving disc arranged at the end of the long stud, a spring arranged between the moving disc and the inner top of the switch cylinder, the moving disc is contacted with the locking cam under the action of the spring, and the steel ball is arranged on the steel ball sleeve, a groove matched with the steel ball is arranged on the locking core; the underwater control module and SCMB locking mechanism comprises a shaft sleeve arranged on a switch cylinder, a driving shaft arranged in the shaft sleeve, a rotary switch connected with one end of the driving shaft, a bevel gear I arranged on the other end of the driving shaft, a driven shaft arranged on a flange plate at the lower end of the switch cylinder through a bearing, a bevel gear II arranged at the upper end of the driven shaft, a locking core penetrating through the lower end of the driven shaft and a self-adaptive sleeve connected with the end part of the driven shaft, a steel rod and a steel rod spring arranged on the inner surface of the self-adaptive sleeve, wherein the steel rod and the steel rod spring are arranged in a hexagon shape; the steel ball is matched with a groove in the hoisting port of the underwater control module to realize locking and unlocking between the tool and the underwater control module, and the self-adaptive sleeve drives the SCM lead screw to rotate to realize locking between the underwater control module and the SCMB.

2. A subsea control module installation tool as claimed in claim 1, wherein: the upper top plate comprises an upper top plate connected with the lower end of the lifting shell and a hydraulic system arranged at the upper end of the upper top plate, the hydraulic system is provided with three hydraulic cylinders and corresponding operation panels, and piston rods of the three hydraulic cylinders are connected with the upper end of the lower barrel.

3. A subsea control module installation tool as claimed in claim 1 or 2, wherein: the guide cylinder part comprises a guide cylinder support, a guide cylinder arranged on the guide cylinder support, a tool arranged at the upper end of the guide cylinder and a guide cylinder locking mechanism, the SCMB is arranged in the guide cylinder, and the tool and the guide cylinder locking mechanism realize the connection of the guide cylinder and the lower cylinder body.

4. A subsea control module installation tool as claimed in claim 3, wherein: the guide cylinder part comprises a guide cylinder support, a guide cylinder arranged on the guide cylinder support, a tool arranged at the upper end of the guide cylinder and a guide cylinder locking mechanism, the SCMB is arranged in the guide cylinder, and the tool and the guide cylinder locking mechanism realize the connection of the guide cylinder and the lower cylinder body.

5. A subsea control module installation tool as claimed in claim 1 or 2, wherein: the locking unit also comprises an indicating mechanism, the indicating mechanism comprises an indicating disc, an indicating screw, a threaded guide rod and an indicating cushion block, and the threaded guide rod is arranged on the driving shaft and moves in a horizontal groove on the shaft sleeve; the indicating dial is installed on the shaft sleeve through indicating screw and indicating cushion block, and the rotation of drive indicating dial through the motion of screw thread guide arm realizes the instruction function.

6. A subsea control module installation tool as claimed in claim 3, wherein: the locking unit also comprises an indicating mechanism, the indicating mechanism comprises an indicating disc, an indicating screw, a threaded guide rod and an indicating cushion block, and the threaded guide rod is arranged on the driving shaft and moves in a horizontal groove on the shaft sleeve; the indicating dial is installed on the shaft sleeve through indicating screw and indicating cushion block, and the rotation of drive indicating dial through the motion of screw thread guide arm realizes the instruction function.

7. A subsea control module installation tool as claimed in claim 4, in which: the locking unit also comprises an indicating mechanism, the indicating mechanism comprises an indicating disc, an indicating screw, a threaded guide rod and an indicating cushion block, and the threaded guide rod is arranged on the driving shaft and moves in a horizontal groove on the shaft sleeve; the indicating dial is installed on the shaft sleeve through indicating screw and indicating cushion block, and the rotation of drive indicating dial through the motion of screw thread guide arm realizes the instruction function.