CN217051270U - A lifting device that is used for marine platform major axis fire pump's transmission shaft - Google Patents
A lifting device that is used for marine platform major axis fire pump's transmission shaft Download PDFInfo
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- CN217051270U CN217051270U CN202220242098.1U CN202220242098U CN217051270U CN 217051270 U CN217051270 U CN 217051270U CN 202220242098 U CN202220242098 U CN 202220242098U CN 217051270 U CN217051270 U CN 217051270U
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- transmission shaft
- fire pump
- semicircular member
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Abstract
The utility model discloses a lifting device for transmission shaft of offshore platform major axis fire pump, lifting device includes: the annular clamp is sleeved outside the transmission shaft and clamps the transmission shaft; a plurality of hanging plates extending from the outer peripheral surface of the annular clasping card and spaced from each other in the circumferential direction of the annular clasping card; and the number of the ring chains is the same as that of the hanging plates, the first end of each ring chain is connected to the corresponding hanging plate, and the second end, opposite to the first end, of each ring chain is connected to the end flange of the lifting pipe of the offshore platform long-shaft fire pump, so that the transmission shaft can be hoisted together with the lifting pipe while the lifting pipe is lifted. Utilize the utility model discloses lifting device can make fire pump dimension guarantor constructor more convenient, more high-efficient, safer carry out fire pump at offshore platform and carry the pump inspection to the high-efficient maintenance of fire pump has been guaranteed, makes the fire pump better serve platform production.
Description
Technical Field
The utility model relates to an offshore platform major axis fire pump technique, in particular to marine platform major axis fire pump transmission shaft's dismantlement and specialized tool of hoist and mount.
Background
The offshore platform fire pump is mainly key equipment for fire protection of the offshore platform under the condition of fire or explosion, and is divided into a diesel fire pump and an electric fire pump. The offshore platform uses an electric fire pump under the condition of no power loss, and transmits power to a submersible pump below the sea level through a plurality of shafts and a vertical motor on a deck under the condition of no power loss of the platform, and seawater is conveyed to a fire fighting pipe network to extinguish fire at different positions so as to achieve the purpose of fire fighting; under the condition that the platform is in power loss, the offshore platform uses a diesel fire pump and provides a power source for the fire pump by means of a diesel engine.
As a special industry, the marine oil exploitation has strict requirements on the prevention, control and treatment of fire hazards, and the integrity and reliability of fire-fighting facilities are very important. In order to ensure that the fire pump is in a good operation state, the offshore platform performs a functional test on the fire pump every month to verify whether the fire pump meets the fire-fighting requirement of the offshore platform. If the fire pump can not satisfy the fire control demand, need organize manpower, material resources to carry the pump inspection to the fire pump. 2-4 long-shaft fire pumps are arranged on each offshore platform, the number of transmission shafts of each long-shaft fire pump is 10, the weight of each transmission shaft is about 100 kilograms, and the most labor-consuming and dangerous fire pump transmission shafts are disassembled and hoisted particularly in the process of lifting the long-shaft fire pumps.
The traditional dismounting method of the long-shaft fire pump transmission shaft comprises the following steps: after dismantling the lifting pipe connecting bolt, lifting the lifting pipe by 0.5 m upwards, dismantling a transmission shaft connecting shaft sleeve, binding the upward pull shaft of the transmission shaft by two persons by using a rope, simultaneously carrying out oblique pull on the lifting pipe by the other person, and drawing the transmission shaft out along the lifting pipe by the two persons. Constructors tie up the transmission shaft with the rope and lift the in-process, there is the risk of slippage or falling in the constructor who is located the well head position, and the transmission shaft that is binded simultaneously has the risk of falling into the sea. In view of safety of personnel and equipment, the disassembly and the hoisting of the transmission shaft are key points, difficulties and key points in the process of lifting the fire pump, so that a special disassembling and hoisting tool is urgently needed to be added to the long-shaft fire pump of the offshore platform.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a lifting device for marine platform major axis fire pump's transmission shaft, utilize this lifting device to make fire pump dimension protect constructor more convenient, more high-efficient, safer carry out the fire pump at marine platform and carry the pump inspection to the high-efficient maintenance of fire pump has been guaranteed, makes the better platform production of being served of fire pump.
The utility model adopts the technical proposal that: a lifting tool for a drive shaft of an offshore platform long shaft fire pump, the lifting tool comprising:
the annular clamp is sleeved outside the transmission shaft and clamps the transmission shaft;
a plurality of hanging plates extending from an outer circumferential surface of the annular clasping card and spaced from each other in a circumferential direction of the annular clasping card; and
the number of the ring chains is the same as that of the hanging plates, the first end of each ring chain is connected to the corresponding hanging plate, and the second end, opposite to the first end, of each ring chain is connected to an end flange of a lifting pipe of the offshore platform long-shaft fire pump, so that the transmission shaft can be hoisted together with the lifting pipe while the lifting pipe is lifted.
Furthermore, the number of the hanging plates is two, and the extending directions of the two hanging plates are on the same straight line.
Further, the annular clamp comprises a first semicircular member and a second semicircular member which are oppositely arranged, one end of the first semicircular member and one end of the second semicircular member are connected with each other through a pivot so that the first semicircular member and the second semicircular member can rotate relatively, and the other end of the first semicircular member and the other end of the second semicircular member can be connected together through a locking device so that the annular clamp is locked on the transmission shaft.
Further, a portion of the plurality of peg boards are disposed on the first semicircular member and the remaining portion of the plurality of peg boards are disposed on the second semicircular member.
Further, the locking means comprises a first and a second ear plate extending parallel to each other at the other end of the first and the second semicircular member, respectively, wherein through holes aligned with each other are provided in the first and the second ear plate;
the locking device further comprises a first swing bolt and a locking nut, wherein, in the locked state of the annular clip, the first swing bolt passes through the through hole and the locking nut is screwed onto the first swing bolt, and the tightness of the annular clip can be adjusted by adjusting the first swing bolt.
Further, a plurality of connecting holes are formed in the hanging plate, and the ring chain is configured to be selectively connected to the hanging plate through different connecting holes so as to adjust the hoisting angle between the ring chain and the hanging plate.
Further, the connecting holes in the hanging plates are arranged to be centrosymmetric relative to the central axis of the annular clamp.
Further, the hoisting tool further comprises a plurality of second swing bolts, the number of the second swing bolts is the same as that of the ring chain, each second swing bolt is connected to the end flange of the lift pipe, and the ring chain is connected to the corresponding second swing bolt through a shackle.
Furthermore, the loop chain is formed by buckling and connecting a plurality of closed loops, and the shackle is connected with different closed loops to adjust the length of the loop chain.
Furthermore, the inner side of the annular clamp is provided with a bushing, and the bushings with different sizes are replaced according to different outer diameters of the transmission shaft so as to meet the requirements of hoisting the transmission shafts with different outer diameters.
The beneficial effects of the utility model are that: the hoisting tool adopts a combined design, and each part can be correspondingly adjusted according to different transmission shaft sizes so as to meet the hoisting use of the transmission shafts with different sizes, and the adaptability is strong; use this utility model device hoist and mount fire pump transmission shaft is effectual to have saved manpower and time, has also solved the hidden danger that transmission shaft hoist and mount in-process transmission shaft dropped in the sea and the potential safety hazard that constructor slippage or fall simultaneously.
Drawings
FIG. 1: the utility model relates to a hoisting tool main view of a transmission shaft of a long shaft fire pump of an offshore platform;
FIG. 2 is a schematic diagram: the utility model relates to a top view of a clamp and a hanging plate of a hoisting tool for a transmission shaft of a long-shaft fire pump of an offshore platform;
FIG. 3: section a-a in fig. 1;
the attached drawings are marked as follows:
1-annular clamp; 2-hanging the plate;
3-a cyclic chain; 4-a first semi-circular member;
5-a second semi-circular member; 6-a pivoting member;
7-locking device; 8-first ear plate;
9-a second ear plate; 10-first swing bolt;
11-lock nut; 12-connecting hole;
13-second swing bolt; 14-shackle;
15-a bushing; 16-pin seat;
17-bolt;
p is the end flange of the water raising pipe.
Detailed Description
For further understanding of the contents, features and functions of the present invention, the following embodiments will be illustrated in detail with reference to the accompanying drawings:
as shown in fig. 1 to 3, a lifting tool for a drive shaft of a long shaft fire pump of an offshore platform comprises: the hoop clasping device comprises an annular clasping clamp 1, a plurality of hanging plates 2, a plurality of loop chains 3, a plurality of second swing bolts 13, a bushing 15 and the like.
The annular clamp 1 is sleeved outside the transmission shaft and clamps the transmission shaft. Specifically, the annular clamp 1 comprises a first semicircular member 4 and a second semicircular member 5 which are oppositely arranged, one end of the first semicircular member 4 and one end of the second semicircular member 5 are connected with each other through a pivot 6 so that the first semicircular member 4 and the second semicircular member 5 can rotate relatively, and the other end of the first semicircular member 4 and the other end of the second semicircular member 5 can be connected together through a locking device 7 so that the annular clamp 1 is locked on the transmission shaft. Wherein the locking means 7 comprises a first 8 and a second 9 ear plate extending parallel to each other at the other end of the first 4 and the other end of the second 5 semicircular member, respectively, through holes being provided in the first 8 and second 9 ear plates in alignment with each other; the locking device 7 further comprises a first swing bolt 10 and a locking nut 11, wherein, in the locked state of the annular clip 1, the first swing bolt 10 passes through the through hole and the locking nut 11 is screwed on the first swing bolt 10, and the tightness of the annular clip 1 can be adjusted by adjusting the first swing bolt 10; in addition, in order to facilitate the opening and closing of the annular clamp 1, a pin seat 16 is arranged on the side, away from the second ear plate 9, of the first ear plate 8, an annular bolt head of the first swing bolt 10 is connected in the pin seat 16 through a bolt 17 and a nut, and the first swing bolt 10 is fixed while the first swing bolt 10 can rotate; meanwhile, the through holes provided in the first lug plate 8 and the second lug plate 9 are configured as through holes that penetrate the outer end surface of the first lug plate 8 (or the outer end surface of the second lug plate 9). In this embodiment, the pivot member 6 is a hinge.
The bushing 15 is arranged on the inner side of the annular clamp 1. The material of bush 15 is PTFE, has good wearability and higher intensity, can guarantee that bush 15 uses and does not damage many times, according to the not unidimensional bush 15 can be changed to the difference of transmission shaft external diameter for satisfy the hoist and mount of different external diameter size's fire pump transmission shaft.
A plurality of the hanging plates 2 protrude from an outer circumferential surface of the annular clip 1 and are spaced apart from each other in a circumferential direction of the annular clip 1, a part of the plurality of the hanging plates 2 is provided on the first semicircular member 4, and the remaining part of the plurality of the hanging plates 2 is provided on the second semicircular member 5. In this embodiment, the hanging plate 2 is two in number, and the extending directions of the hanging plate 2 are on the same straight line. A plurality of connecting holes 12 are formed in the hanging plate 2, and the connecting holes 12 in the hanging plate 2 are arranged to be in central symmetry relative to the central axis of the annular clamp 1.
The number of the second swing bolts 13 is the same as that of the ring chains 3, each second swing bolt 13 is connected to an end flange P of the pumping pipe, and when the pumping pipe is hoisted by using a chain block, the second swing bolt is connected and fastened with the end flange P of the pumping pipe, so that the pumping pipe is hoisted and the transmission shaft can be hoisted together with the pumping pipe.
The number of the ring chains 3 is the same as that of the hanging plates 2, the first end of each ring chain 3 is connected to the corresponding hanging plate 2 through a shackle 14, and the second end of each ring chain 3, which is opposite to the first end, is connected to the corresponding second swing bolt 13 fixed on the end flange P of the lift pipe through the shackle 14, so that the transmission shaft can be hoisted together with the lift pipe while the lift pipe is lifted. The loop chain 3 can carry out the regulation of length according to the difference of the tip flange P size of lifting pipe, specifically is: the ring chain 3 is formed by buckling and connecting a plurality of closed rings, the using length of the ring chain 3 can be adjusted by connecting the shackles 14 with different closed rings, and the length of the ring chain 3 which is most suitable for hoisting a transmission shaft is selected according to the size of the end flange P of the lifting pipe. In addition, the link chain 3 is configured to be selectively connected to the link plate 2 through different connection holes 12, so as to adjust a hoisting angle of the link chain 3 and the link plate 2, thereby selecting an appropriate hoisting angle according to an actual working condition.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the protection scope of the present invention.
Claims (10)
1. A lifting device for a transmission shaft of a long-shaft fire pump of an offshore platform, characterized in that the lifting device comprises:
the annular clamp (1) is sleeved outside the transmission shaft and clamps the transmission shaft;
a plurality of hanging plates (2) which protrude from the outer peripheral surface of the annular clamp (1) and are spaced from each other in the circumferential direction of the annular clamp (1); and
the number of the ring chains (3) is the same as that of the hanging plates (2), the first end of each ring chain (3) is connected to the corresponding hanging plate (2), and the second end, opposite to the first end, of each ring chain (3) is connected to an end flange (P) of a water raising pipe of the offshore platform long shaft fire pump, so that the transmission shaft can be hoisted along with the water raising pipe when the water raising pipe is lifted.
2. Hoisting tool according to claim 1, characterized in that the number of said hanging plates (2) is two, the extension directions of two said hanging plates (2) being on the same straight line.
3. Hoisting tool according to claim 1 or 2, characterized in that the annular bail (1) comprises a first semicircular member (4) and a second semicircular member (5) arranged opposite each other, that one end of the first semicircular member (4) and one end of the second semicircular member (5) are connected to each other by means of a pivot (6) such that a relative rotation between the first semicircular member (4) and the second semicircular member (5) can take place, and that the other end of the first semicircular member (4) and the other end of the second semicircular member (5) can be connected together by means of a locking device (7) such that the annular bail (1) is locked on the drive shaft.
4. Hoisting tool according to claim 3, characterized in that a part of the plurality of said cladding panels (2) is provided on said first semicircular member (4) and the remaining part of the plurality of said cladding panels (2) is provided on said second semicircular member (5).
5. A lifting tool according to claim 3, characterized in that the locking device (7) comprises a first ear plate (8) and a second ear plate (9) extending parallel to each other at the other end of the first semicircular member (4) and the other end of the second semicircular member (5), respectively, wherein through holes aligned with each other are provided in the first ear plate (8) and the second ear plate (9);
the locking device (7) further comprises a first swing bolt (10) and a locking nut (11), wherein, in the locked state of the annular clip (1), the first swing bolt (10) passes through the through hole and the locking nut (11) is screwed onto the first swing bolt (10), and the tightness of the annular clip (1) can be adjusted by adjusting the first swing bolt (10).
6. Hoisting tool according to claim 1, characterized in that several connection holes (12) are opened on the link plate (2), and the link chain (3) is configured to be selectively connectable to the link plate (2) through different connection holes (12) to adjust the hoisting angle of the link chain (3) and the link plate (2).
7. Hoisting tool according to claim 6, characterized in that the attachment holes (12) in the plurality of cladding panels (2) are arranged in a central symmetry with respect to the centre axis of the annular clip (1).
8. Hoisting tool according to claim 1, characterized in that the hoisting tool further comprises a number of second swing bolts (13), the number of second swing bolts (13) being the same as the number of the link chains (3), each second swing bolt (13) being connected to an end flange (P) of the riser pipe, the link chains (3) being connected to the respective second swing bolt (13) by means of shackles (14).
9. Hoisting tool according to claim 8, characterized in that the endless chain (3) is formed by a number of closed loops being connected by shackles (14) to different closed loops for adjusting the length of the endless chain (3).
10. Hoisting tool according to claim 1, characterized in that the inside of the annular clamp (1) is provided with a bush (15), and the bushes (15) of different sizes are replaced according to the different outer diameters of the transmission shafts, so as to meet the requirements of hoisting transmission shafts of different outer diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220242098.1U CN217051270U (en) | 2022-01-28 | 2022-01-28 | A lifting device that is used for marine platform major axis fire pump's transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220242098.1U CN217051270U (en) | 2022-01-28 | 2022-01-28 | A lifting device that is used for marine platform major axis fire pump's transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217051270U true CN217051270U (en) | 2022-07-26 |
Family
ID=82484994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220242098.1U Active CN217051270U (en) | 2022-01-28 | 2022-01-28 | A lifting device that is used for marine platform major axis fire pump's transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217051270U (en) |
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2022
- 2022-01-28 CN CN202220242098.1U patent/CN217051270U/en active Active
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