阅读说明：本技术 海底设备拆装用自动脱销机构 (Automatic pin releasing mechanism for dismounting and mounting subsea equipment ) 是由 宿发强 赫亚峰 杜闯 王明 朱岭 陈一尤 郑秀磊 于 2020-07-28 设计创作，主要内容包括：本发明涉及海底设备拆装用自动脱销机构,包括壳体、转动限位臂、锁紧销轴、转动销轴、限位销轴,转动限位臂通过转动销轴连接在壳体的顶部,壳体上水平设有限位筒,所述的锁紧销轴设置在壳体的限位筒内,所述的转动限位臂上插入壳体内部的一端设置有拨叉,锁紧销轴上设置有凹槽,在凹槽的中间设有定位轴,转动限位臂拨叉的中间开口处插接在凹槽内的定位轴上,所述的壳体上设有限制转动限位臂转动角度的限位销轴,有益效果,可以自动完成拔销,有效减少潜水员的水下作业工作量,可以轻松完成插销工作,确保安全可靠,设备结构简单,稳定性高。(The invention relates to an automatic pin releasing mechanism for disassembling and assembling subsea equipment, which comprises a shell, a rotating limit arm, a locking pin shaft, a rotating pin shaft and a limit pin shaft, wherein the rotating limit arm is connected to the top of the shell through the rotating pin shaft, the shell is horizontally provided with a limit cylinder, the locking pin shaft is arranged in the limit cylinder of the shell, one end of the rotating limit arm, which is inserted into the shell, is provided with a shifting fork, the locking pin shaft is provided with a groove, the middle of the groove is provided with a positioning shaft, the middle opening of the shifting fork of the rotating limit arm is inserted into the positioning shaft in the groove, and the shell is provided with the limit pin shaft for limiting the rotating angle of the rotating limit arm.)

1. Automatic pin releasing mechanism for dismounting subsea equipment is characterized in that: including casing (101) and rotation spacing arm (102) of connection on casing (101), the level is provided with spacing section of thick bamboo (1011) in casing (101), spacing section of thick bamboo (1011) section of thick bamboo interpolation has locking pin axle (103), is provided with recess (108) on locking pin axle (103), and the one end that rotates spacing arm (102) and insert the casing inside is equipped with the shift fork that can insert recess (108), and recess (108) middle part radially is equipped with location axle (10) that crosses the middle opening part of shift fork, the top of spacing section of thick bamboo (1011) is equipped with and is used for carrying out spacing round pin axle (105) to rotating spacing arm (102), and the middle part of rotating spacing arm (102) is equipped with the locating hole, rotates spacing arm (102) and inserts the locating hole through rotating round pin axle (104) from the casing outside and rotates to drive locking pin axle (103) stretch out/retract.

2. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: the limiting cylinder (1011) extends outwards from the inside of the shell (101) to the outside of the shell (101), and the locking pin shaft (103) is inserted into the limiting cylinder (1011) of the shell (101) and moves along the limiting cylinder (1011).

3. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: the limiting pin shaft (105) is positioned on one side of the opening of the limiting cylinder (1011).

4. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: the rotation limiting arm (102) rotates upwards around the rotation pin shaft (104), a shifting fork on the rotation limiting arm (102) drives the locking pin shaft (103) to move towards the inner side of the shell, and the locking pin shaft (103) retracts into the shell (101).

5. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: the rotation limiting arm (102) rotates downwards around the rotation pin shaft (104), a shifting fork on the rotation limiting arm (102) drives the locking pin shaft (103) to move towards the outer side of the shell, and the locking pin shaft (103) extends out of the shell (101).

6. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: and a limiting clamping groove (1010) matched with the limiting pin shaft (105) is arranged on the shifting fork of the rotary limiting arm (102).

7. The automatic pin-releasing mechanism for the dismounting and mounting of subsea equipment according to claim 1, wherein: the minimum rotation angle of the rotation limiting arm (102) is 50 degrees.

8. The automatic release mechanism for dismounting and mounting subsea equipment according to any one of claims 1-7, wherein: the outer parts of the rotating pin shaft (104) and the limiting pin shaft (105) are fixed through an assembling plate (106) and a screw (107).

Technical Field

The invention belongs to a device for centering and positioning a sand box and a sand mold in a casting production line, and particularly relates to an automatic pin releasing mechanism for disassembling and assembling subsea equipment.

Background

At present, in the domestic immersed tube construction of the large-scale submarine tunnel, immersed tube installation is carried out by adopting pulling-closing equipment, and in the working process, in order to avoid the pulling-closing equipment during pulling-closing operation, an anti-bounce pin shaft is installed. When the operation is finished and the equipment needs to be dismantled, the traditional mode is that a diver needs to go deep underwater and the pin shaft is rotated out through the screw thread a little bit. The operation difficulty is high, and when the phenomenon such as dead lock appears in the joining screw thread, then the work of dismantling has not been accomplished to the simple manpower of relying on.

Disclosure of Invention

Aiming at the technical problems, the invention solves the problem of automatic dismantling of the pin shaft of the underwater equipment, effectively reduces underwater operation of divers and improves the stability and efficiency of work.

In order to achieve the purpose, the invention adopts the technical scheme that:

automatic pin releasing mechanism for dismounting subsea equipment comprises a shell and a rotary limiting arm connected to the shell, wherein a limiting barrel is horizontally arranged in the shell, a locking pin shaft is inserted in the limiting barrel, a groove is formed in the locking pin shaft, a shifting fork capable of being inserted into the groove is arranged at one end of the rotary limiting arm inserted into the shell, a positioning shaft transversely penetrating through the middle opening of the shifting fork is radially arranged in the middle of the groove, a limiting pin shaft used for limiting the rotary limiting arm is arranged above the limiting barrel, a positioning hole is formed in the middle of the rotary limiting arm, and the rotary limiting arm is inserted into the positioning hole to rotate through the rotary pin shaft inserted from the outer side of the shell so as to drive the locking pin shaft to extend out or retract.

Preferably, the limiting cylinder extends outwards from the inner part of the shell to the outer part of the shell, and the locking pin shaft is inserted into the limiting cylinder of the shell and moves along the limiting cylinder.

Preferably, the limiting pin shaft is positioned on one side of the opening of the limiting cylinder.

Preferably, the rotation limiting arm rotates upwards around the rotation pin shaft, the shifting fork on the rotation limiting arm drives the locking pin shaft to move towards the inner side of the shell, and the locking pin shaft retracts into the shell.

Preferably, the rotation limiting arm rotates downwards around the rotation pin shaft, the shifting fork on the rotation limiting arm drives the locking pin shaft to move towards the outer side of the shell, and the locking pin shaft extends out of the shell.

Preferably, a limiting clamping groove matched with the limiting pin shaft is formed in the shifting fork of the rotating limiting arm.

Preferably, the minimum rotation angle of the rotation limiting arm is 50 degrees.

Preferably, the outer parts of the rotating pin shaft and the limiting pin shaft are fixed through an assembling plate and a screw.

Compared with the prior art, the invention has the advantages and positive effects that:

the invention provides an automatic pin releasing mechanism for dismounting subsea equipment, wherein after the subsea equipment is operated, when the subsea equipment needs to be dismounted, a hoisting hole is formed in a rotating limiting arm, when the automatic pin releasing mechanism is hoisted, the torque generated by the gravity of the automatic pin releasing mechanism on the rotating limiting arm is far greater than the torque generated by the retraction friction force of a locking pin shaft, a lifting appliance can firstly rotate the rotating limiting arm upwards, the rotation of the rotating limiting arm can drive the locking pin shaft to automatically retract into a shell through a shifting fork below the rotating limiting arm, and the separation of a column reverse hook plate is completed and tied, so that the automatic pin releasing process is completed, and the underwater operation workload of a diver is effectively reduced;

the limiting cylinder extends outwards from the inside of the shell to the outside of the shell, the locking pin shaft is inserted into the limiting cylinder on the shell, and the locking pin shaft moves along the limiting cylinder, so that the extending length of the locking pin shaft is effectively limited, the pin can be taken off and installed, the bolt can be easily operated, and safety and reliability are ensured;

the rotation limiting arm rotates upwards around the rotation pin shaft, the shifting fork on the rotation limiting arm drives the locking pin shaft to move towards the inner side of the shell, the locking pin shaft retracts into the shell, the shifting fork on the rotation limiting arm can ensure that the rotation limiting arm and the locking pin shaft are tightly connected, and therefore linkage of the rotation limiting arm and the locking pin shaft is achieved, the equipment is simple in structure and high in stability.

Drawings

FIG. 1 is a front view of an automatic release mechanism for assembling and disassembling subsea equipment according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of an automatic release mechanism for assembling and disassembling subsea equipment according to a preferred embodiment of the present invention;

FIG. 3 is an exploded view of the automatic pin-disengaging mechanism for disassembling and assembling the subsea equipment in accordance with the preferred embodiment of the present invention;

FIG. 4 is a view illustrating the installation of the automatic release mechanism for the assembly and disassembly of the subsea equipment in accordance with a preferred embodiment of the present invention;

FIG. 5 is a schematic view of the locking pin shaft of the automatic release mechanism for assembling and disassembling the subsea equipment according to a preferred embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating the locking pin of the automatic release mechanism for assembling and disassembling the subsea equipment according to a preferred embodiment of the present invention;

in the above figures: the automatic pin removing mechanism 10, the shell 101, the rotating limiting arm 102, the locking pin 103, the rotating pin 104, the limiting pin 105, the assembly plate 106, the screw 107, the groove 108, the positioning shaft 109, the limiting clamping groove 1010, the limiting cylinder 1011 and the limiting cylinder 20 are used for tying columns.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-6, the automatic pin releasing mechanism for dismounting and mounting subsea equipment comprises a housing 101 and a rotary limiting arm 102 connected to the housing, wherein a limiting cylinder 1011 is horizontally arranged in the housing 101, a locking pin 103 is inserted into the limiting cylinder 1011, a groove 108 is arranged on the locking pin 103, a fork capable of being inserted into the groove 108 is arranged at one end of the rotary limiting arm 102 inserted into the housing, a positioning shaft 10 crossing a middle opening of the fork is radially arranged in the middle of the groove 108, a limiting pin 105 for limiting the rotary limiting arm 102 is arranged above the limiting cylinder 1011, a positioning hole is arranged in the middle of the rotary limiting arm 102, and the rotary limiting arm 102 is inserted into the positioning hole through a rotary pin 104 inserted from the outside of the housing to rotate so as to drive the locking pin 103 to extend out or retract; the shell is formed by welding Q345 plates, is welded to the submarine equipment after being formed, and is formed into an integral piece with the submarine equipment, so that the shell has the characteristic of high strength. The integral structural member is subjected to paint spraying treatment after hot galvanizing, the corrosion resistance of the integral structural member during use on the seabed is guaranteed, after the operation of seabed equipment is finished, when the seabed equipment needs to be dismantled, hoisting holes are formed in the rotating limiting arm 102, when the automatic release mechanism 10 is hoisted, the torque generated by the gravity of the automatic release mechanism on the rotating limiting arm 102 is far greater than the torque generated by the retraction friction force of the locking pin shaft 103, the rotating limiting arm 102 can be rotated upwards by a lifting tool, the rotating limiting arm 102 can drive the locking pin shaft 103 to automatically retract into the shell 101 through a shifting fork below the rotating limiting arm 102, the separation of the reverse hook plate of the column 20 is completed and tied, and therefore the automatic release process is completed.

The arrangement of the limiting cylinder 1011 is that the inside of the shell 101 extends to the outside of the shell 101, the locking pin shaft 103 is inserted into the limiting cylinder 1011 on the shell 101, the locking pin shaft 103 moves along the limiting cylinder 1011, the extending length of the locking pin shaft 103 is effectively limited, and pin removal and installation can be realized.

Through set up spacing round pin axle 105 in the top of spacing section of thick bamboo 1011, spacing round pin axle 105 is located opening one side of spacing section of thick bamboo 1011, and effective restriction rotates spacing arm 102 turned angle, can realize out of stock and installation, is equipped with the spacing draw-in groove 1010 who mutually supports with spacing round pin axle 105 on the shift fork that rotates spacing arm 102, and spacing draw-in groove 1010 can ensure the stability of spacing round pin axle 105 activity.

The rotation limiting arm 102 rotates upwards around the rotation pin 104, the shifting fork on the rotation limiting arm 102 drives the locking pin 103 to move towards the inner side of the shell, and the locking pin 103 retracts into the shell 101; the rotation limiting arm 102 rotates downwards around the rotation pin 104, the shifting fork on the rotation limiting arm 102 drives the locking pin 103 to move towards the outer side of the shell, the locking pin 103 extends out of the shell 101, and the rotation limiting arm 102 and the locking pin 103 can be tightly connected through the shifting fork on the rotation limiting arm 102, so that linkage of the rotation limiting arm 102 and the locking pin 103 is realized.

The rotation angle of the rotation limiting arm 102 is within a certain range, the minimum rotation angle is 50 degrees, the adjustment angle of the rotation limiting arm is improved, and the stability of automatic pin removal is enhanced.

In addition, the rotating pin 104 and the limiting pin 105 can be fixed outside the rotating pin 104 and the limiting pin 105 through the assembling plate 106 and the screw 107, so that the rotating pin 104 and the limiting pin 105 can be reinforced and fixed, and the rotating pin 104 and the limiting pin 105 can be prevented from slipping.

The working principle is as follows:

rotate spacing arm 102 and link together through rotating round pin axle 103 and casing 101, rotate the shift fork of spacing arm 102 below and lock the epaxial location axle 10 of round pin and link together, lock round pin axle 103 places downthehole on the casing, can be along downthehole motion, when rotating spacing arm 102 and upwards rotating, rotate the shift fork of spacing arm 102 below and can drive the motion of lock round pin axle 103, lock round pin axle 103 can retract to the casing in, accomplish this moment and take off the round pin. When the rotation limiting arm 102 moves downwards, the shifting fork below the rotation limiting arm 102 drives the locking pin shaft 103 to move towards the other direction, the locking pin shaft 103 extends out to the lower part of the reverse hook plate of the tying column 20, and the rotation limiting arm 102 cannot rotate after rotating downwards to the limiting pin shaft 105, so that the extending distance of the locking pin shaft 103 can only reach a certain distance.

The working process is that before the automatic pin releasing mechanism 10 is launched into water, the locking pin shaft 103 is manually extended to the maximum, at the moment, the locking pin shaft 103 is positioned below the reverse hook plate of the tying column 20, the strength of the locking pin shaft 103 is far greater than the impact force of equipment during bouncing, and the safety protection effect is achieved; after the operation of the submarine equipment is finished and the submarine equipment needs to be dismantled, the rotating limiting arm 102 is provided with a hoisting hole, when the automatic pin removing mechanism 10 is hoisted, the torque generated by the gravity of the automatic pin removing mechanism on the rotating limiting arm 102 is far greater than the torque generated by the retraction friction force of the locking pin shaft 103, the hoisting tool can firstly rotate the rotating limiting arm 102 upwards, the rotating limiting arm 102 can drive the locking pin shaft 103 to automatically retract into the shell 101 through a shifting fork below the rotating limiting arm 102, the separation of the reverse hook plate of the tying column 20 is completed, and therefore the automatic pin removing process is completed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.