CN210763895U - Front end box installation hoisting tool of marine diesel engine - Google Patents
Front end box installation hoisting tool of marine diesel engine Download PDFInfo
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- CN210763895U CN210763895U CN201921624123.7U CN201921624123U CN210763895U CN 210763895 U CN210763895 U CN 210763895U CN 201921624123 U CN201921624123 U CN 201921624123U CN 210763895 U CN210763895 U CN 210763895U
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Abstract
The utility model discloses a hoisting tool for installing a front end box of a marine diesel engine, which comprises a first hoisting tool and a second hoisting tool which are all in right-angle shapes, wherein the first hoisting tool and the second hoisting tool respectively comprise an L-shaped plate, a hoisting plate and 2 positioning rods which are fixedly connected into a whole, the lower end of the hoisting plate is vertically fixed on the middle part of the long edge of the L-shaped plate, the 2 positioning rods are arranged in parallel, and one end of each positioning rod is respectively fixed on one end of the long edge of the L-shaped plate; one end of a first lifting appliance and one end of a second lifting appliance are respectively fixed on two sides of the upper portion of the front end box, and the other ends of the positioning rods on two sides of the other ends of the first lifting appliance and the second lifting appliance are respectively inserted into connecting holes in corresponding positions of the bottom mounting edge of the front end box. The lifting appliance is fixed firmly, the safety and the reliability of lifting and mounting the front end box of the diesel engine on an assembly site are improved, the mounting holes on the mounting edge of the front end box can be conveniently and quickly aligned to the mounting screw holes on one side of the upper part of the rack, the mounting efficiency of the front end box is improved, and the labor intensity of mounting the front end box is reduced.
Description
Technical Field
The utility model relates to an installation of box spare lifts by crane the frock, especially relates to a lift by crane frock for installing diesel engine front end housing, belongs to jack-up technical field.
Background
When the front end box of the marine diesel engine is installed, the front end box needs to be vertically lifted by a crane and then transported to the outside of one side of a frame at the free end of the marine diesel engine. The front end box 10 is an irregular heptagon box with an open bottom as shown in fig. 1, and 5 mounting platforms 11 with through holes are arranged at the centers of the top of the box and protrude outwards for mounting a fresh water pump and other components. The front end box is generally hoisted by adopting a hoisting cable such as a steel cable and a bandage to penetrate through a through hole of the front end box, because the front end box is not a homogeneous rotary body, the gravity center of the front end box is close to one side of the top surface of the front end box, in order to vertically hoist the front end box 10, a hand-operated hoist crane is hung on a driving auxiliary lifting hook besides the main hoisting cable hung on a driving main lifting hook penetrates through a central through hole 101 of the front end box, then the auxiliary hoisting cable penetrates through a left through hole 102 or a right through hole 103 of the front end box, the length of the hand-operated hoist is adjusted to enable the auxiliary hoisting cable to pull the front end box 10, and the auxiliary hoisting cable is adjusted to be in a vertical state to a bottom mounting edge 112 on the left side of the front end box 10 shown in fig. 2, so that the front end box 10 is fixed on. This type of mounting is cumbersome, the front end box 10 and mounting surface are difficult to align and the efficiency is low, and the finished hole is easily damaged. In addition, when the bottom mounting edge 112 of the front end box 10 is close to the mounting surface on the upper side of the rack, it is difficult to remove the main suspension cable and the sub suspension cable, and there is a safety risk.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a marine diesel engine's front end case installation lifts by crane frock improves the installation effectiveness of front end case, alleviates the intensity of labour of installation front end case.
The utility model discloses a following technical scheme realizes:
a hoisting tool for mounting a front end box of a marine diesel engine comprises a first hoisting tool and a second hoisting tool which are respectively fixed on two sides of the upper part of the front end box, wherein the first hoisting tool and the second hoisting tool are in right-angle shapes and respectively comprise an L-shaped plate, a hoisting plate and 2 positioning rods which are fixedly connected into a whole, the lower end of the hoisting plate is vertically fixed on the middle part of the long edge of the L-shaped plate, and the short edge of the L-shaped plate is provided with a unthreaded hole matched with the position of a threaded hole of a mounting platform fixed on the end surface of the front end box; 2 positioning rods are arranged in parallel, and one end of each positioning rod is fixed on one end of the long edge of the L-shaped plate; the first lifting appliance and the second lifting appliance are fixed to two sides of the upper portion of the front end box through fastening screws, and the positioning rods on two sides of the other end of the first lifting appliance and two sides of the other end of the second lifting appliance are respectively inserted into the connecting holes corresponding to the mounting edge at the bottom of the front end box.
The purpose of the utility model is further realized through the following technical scheme:
furthermore, the end of the short side of the L-shaped plate of the first lifting appliance is provided with a transverse plate perpendicular to the short side of the L-shaped plate, and two ends of the transverse plate are respectively provided with a first unthreaded hole matched with the positions of two adjacent threaded holes on the first mounting platform on one side of the upper part of the end face of the front end box.
Furthermore, a second unthreaded hole matched with the threaded hole of the second mounting platform on the other side of the upper part of the end face of the front end box is formed in the end head of the short side of the L-shaped plate of the second lifting appliance.
Further, the ratio of the distance B1 from the longitudinal center section A-A of the lifting plate to the end face of the front end box to the thickness B of the front end box is as follows: B1/B = 0.36-0.38.
Further, the ratio of the length L of the positioning rod to the bottom mounting edge thickness L1 of the front end box is: L/L1=1.25 ~ 1.29.
The utility model discloses simple structure, convenient and fast is dismantled in the installation, only needs to fix first hoist and second hoist respectively in front end case upper portion both sides, then will hang the jack-up shackle that cable both ends hung the circle and adorn respectively on the hanger plate, just can pass through the cable sling with the driving hook and hoist the front end case, and the cable sling central plane passes front end case focus through the hanger plate, therefore the front end case can keep handling under the vertical state. The utility model discloses need not use hand block to hang, just can the front end case of the irregular heptagon box of vertical handling, the hoist is fixed firm, has improved security and reliability at assembly site handling and installation diesel engine front end case, and can make things convenient for, fast with the installation screw that the mounting hole on the installation limit of front end case aligns frame upper portion one side, has improved the installation effectiveness of front end case, alleviates the intensity of labour of front end case installation.
The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of the lifting front-end box of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a perspective view of a first spreader;
fig. 4 is a perspective view of a second spreader.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiment of the lifting L23/30H type marine diesel engine front end box of the invention.
As shown in fig. 1 to 4, the present embodiment includes a first lifting device 1 fixed on the left side of the upper portion of the front end box 10 and a second lifting device 2 fixed on the right side of the upper portion of the front end box 10, the first lifting device 1 and the second lifting device 2 are both right-angled, and each lifting device includes an L-shaped plate 11, a lifting plate 12 and 2 positioning rods 13, which are fixedly welded together, the lower end of the lifting plate 12 is vertically welded and fixed on the middle of the long side 111 of the L-shaped plate, and the short side 112 of the L-shaped plate is provided with an optical hole matched with the position of a threaded hole fixed on the end face mounting. 2 locating levers 13 are arranged in parallel, and one end of each locating lever 13 is welded and fixed on one end of the long edge 111 of the L-shaped plate.
As shown in fig. 3, a transverse plate 113 perpendicular to the L-shaped short side 112 is disposed at the end of the short side of the L-shaped plate of the first spreader 1, and first unthreaded holes 114 matched with two adjacent threaded holes on the first mounting platform 104 on the left side of the upper portion of the end surface of the front end box 10 are respectively disposed at two ends of the transverse plate 113.
As shown in fig. 4, the short side end of the L-shaped plate of the second hanger 2 is provided with a second unthreaded hole 115 matched with the threaded hole of the second mounting platform 105 on the right side of the upper part of the end surface of the front end box 10.
As shown in fig. 1 and 3, the installation of the present invention is performed by screwing the fastening screws 3 into two adjacent screw holes on the left side of the first mounting platform 104 through the first light holes 114 on the two ends of the transverse plate 113 of the first lifting tool 1, and simultaneously inserting the 2 positioning rods 13 on the other end of the first lifting tool 1 into the mounting holes on the left side of the bottom mounting edge 106 of the front end box 10, so that the first lifting tool 1 is stably and reliably fixed on the first mounting platform 104 of the front end box 10.
In addition, the fastening screw 3 passes through the second unthreaded hole 115 of the short-side end of the L-shaped plate of the second hanger 2 and is screwed into the corresponding threaded hole of the second mounting platform 105, and simultaneously, the 2 positioning rods 13 at the other end of the second hanger 2 are inserted into the mounting holes at the corresponding positions on the right side of the bottom mounting edge 106 of the front end box 10, so that the second hanger 2 is stably and reliably fixed on the second mounting platform 105 of the front end box 10. In this way, the first spreader 1 and the second spreader 2 are conveniently and quickly fixed to both sides of the upper portion of the front end box 10.
As shown in fig. 2, the ratio of the distance B1 from the longitudinal center section a-a of the lifting plate 12 to the end face of the front end box 10 to the thickness B of the front end box is: B1/B = 0.37. The position of the lifting plate 12 biased to the front side of the front end box 10 enables the bottom mounting edge 106 of the front end box 10 to be maintained at a vertical position after lifting, and other tools are not required to adjust the deflection angle of the front end box 10, thereby shortening the mounting time and improving the mounting efficiency of the front end box 10.
The ratio of the length L of the positioning rod 13 to the thickness L1 of the bottom attachment edge 106 of the front end case 10 in the present embodiment: L/L1= 1.27. Such structure enables the both ends of first hoist 1 and the 2 ends homoenergetic of second hoist to fix a position completely and fix in the upper portion both sides of front end case 10, the butt joint location of the bottom installation limit 106 of front end case 10 and frame upper portion one side installation face of still being convenient for, when 2 locating levers 13 ends of front end case 10 upper portion both sides stretched into the corresponding screw of frame upper portion one side installation face respectively, just made front end case 10 fix a position on frame upper portion one side fast high-efficiently, greatly reduced the location installation degree of difficulty of front end case 10 on frame upper portion one side.
The process of lifting and installing the front end box 10 on one side of the upper part of the frame of the L23/30H type diesel engine is as follows:
1. firstly, a first hanger 1 and a second hanger 2 are respectively fixed on two sides of the upper part of a front end box 10, then lifting rings 201 at two ends of a lifting cable 20 are respectively sleeved in lifting shackles 30, then the lifting shackles 30 are respectively arranged on lifting plates 12 corresponding to the first hanger 1 and the second hanger 2, then a crane lifting hook slowly rises, the lifting cable 20 is stressed to open and lift the front end box 10, and at the moment, the center plane of the lifting cable 20 passing through the lifting plates 12 passes through the gravity center of the front end box 10, so that the front end box 10 can be lifted in a vertical state.
2. The crane hook is continuously lifted to lift the front end box 10 off the ground or the placed packing box by less than 0.5 m and hold the front end box 10. And controlling the traveling vehicle to move towards the marine diesel engine to gradually approach the free end of the marine diesel engine according to the placement condition of the marine diesel engine on site.
3. According to the height of the installation position of the front end box 10, the lifting height and the advancing direction of the crane hook are adjusted, so that the front end box 10 is close to the installation position, and the front end box 10 is prevented from colliding with other parts on the marine diesel engine. It is observed that the ends of 2 positioning rods 13 at both sides of the upper part of the front end box 10 respectively extend into corresponding screw holes of the mounting surface at one side of the upper part of the rack, so that the front end box 10 is quickly and efficiently positioned at one side of the upper part of the rack.
4. Mounting screws are screwed into corresponding screw holes in the upper side of the rack through respective mounting holes of the bottom mounting edge 106 of the front end case 10, so that the front end case 10 is preliminarily fixed to the upper side of the rack. The lifting shackle 30 can be removed and the travelling crane can be driven off the marine diesel engine after the suspension loops 201 at both ends of the suspension cable 20 are disengaged from the first and second spreaders 1, 2. And then the first lifting appliance 1 and the second lifting appliance 2 are dismantled, and after the fastening screws 3 are unscrewed, the first lifting appliance 1 and the second lifting appliance 2 can be respectively pulled out towards the top surface of the front end box 10. The utility model discloses a demolish very conveniently and have the safety guarantee, improved the installation effectiveness of front end case 10 greatly.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (5)
1. The hoisting tool for mounting the front end box of the marine diesel engine is characterized by comprising a first hoisting tool and a second hoisting tool which are respectively fixed on two sides of the upper part of the front end box, wherein the first hoisting tool and the second hoisting tool are in right-angle shapes and comprise an L-shaped plate, a hoisting plate and 2 positioning rods which are fixedly connected into a whole, the lower end of the hoisting plate is vertically fixed on the middle part of the long edge of the L-shaped plate, and the short edge of the L-shaped plate is provided with a unthreaded hole matched with the position of a threaded hole of a mounting platform fixed on the end surface of the front end box; 2 positioning rods are arranged in parallel, and one end of each positioning rod is fixed on one end of the long edge of the L-shaped plate; the first lifting appliance and the second lifting appliance are fixed to two sides of the upper portion of the front end box through fastening screws, and the positioning rods on two sides of the other end of the first lifting appliance and two sides of the other end of the second lifting appliance are respectively inserted into the connecting holes corresponding to the mounting edge at the bottom of the front end box.
2. The marine diesel engine front end box mounting and hoisting tool as claimed in claim 1, wherein a transverse plate perpendicular to the short edge is arranged at the end of the short edge of the L-shaped plate of the first hanger, and first unthreaded holes matched with two adjacent threaded holes in the first mounting platform on one side of the upper portion of the end surface of the front end box are respectively arranged at two ends of the transverse plate.
3. The marine diesel engine front end box mounting and hoisting tool as claimed in claim 1, wherein a second unthreaded hole matched with the threaded hole of the second mounting platform on the other side of the upper portion of the end face of the front end box is formed in the end of the short side of the L-shaped plate of the second hanger.
4. The marine diesel engine front end box installation hoisting tool of claim 1, characterized in that the ratio of the distance B1 from the longitudinal center section a-a of the hoisting plate to the front end box end face to the front end box thickness B: B1/B = 0.36-0.38.
5. The marine diesel engine front end box mounting and hoisting tool set forth in claim 1, wherein the ratio of the length L of the positioning rod to the bottom mounting edge thickness L1 of the front end box is: L/L1=1.25 ~ 1.29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624123.7U CN210763895U (en) | 2019-09-27 | 2019-09-27 | Front end box installation hoisting tool of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624123.7U CN210763895U (en) | 2019-09-27 | 2019-09-27 | Front end box installation hoisting tool of marine diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN210763895U true CN210763895U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921624123.7U Active CN210763895U (en) | 2019-09-27 | 2019-09-27 | Front end box installation hoisting tool of marine diesel engine |
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| CN (1) | CN210763895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526099A (en) * | 2019-09-27 | 2019-12-03 | 中船动力有限公司 | The head end box of marine diesel installs hoisting tool |
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2019
- 2019-09-27 CN CN201921624123.7U patent/CN210763895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526099A (en) * | 2019-09-27 | 2019-12-03 | 中船动力有限公司 | The head end box of marine diesel installs hoisting tool |
| CN110526099B (en) * | 2019-09-27 | 2024-04-05 | 中船动力有限公司 | Front end box installation lifting tool of marine diesel engine |
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Address after: No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province, 212002 Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |