CN103318817A - Underwater rolling-over method of reversing chassis - Google Patents
Underwater rolling-over method of reversing chassis Download PDFInfo
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- CN103318817A CN103318817A CN2012105372961A CN201210537296A CN103318817A CN 103318817 A CN103318817 A CN 103318817A CN 2012105372961 A CN2012105372961 A CN 2012105372961A CN 201210537296 A CN201210537296 A CN 201210537296A CN 103318817 A CN103318817 A CN 103318817A
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- reversing chassis
- water inlet
- suspension
- inlet side
- chassis
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Abstract
The invention provides an underwater rolling-over method of a reversing chassis. The reversing chassis comprises an upper bottom surface and a lower bottom surface which are opposite and a water inlet side and a lifting side which are opposite. The method comprises the following steps: a crane hoists hoisting points of the water inlet side and the lifting side to hoist the reversing chassis, wherein the lower bottom surface faces upwards and the upper bottom surface faces downwards at the hoisting initial state; the crane moves the reversing chassis into water horizontally; the hoisting points of the water inlet side are unhooked to enable the water inlet side of the reversing chassis to enter water; the crane pulls the lifting side to enable the reversing chassis to swing and roll over by 180 degrees around the hoisting points of the lifting side, so as to enable the lower bottom surface to face downwards and enable the upper bottom surface to face upwards; the crane hoists the hoisting points of the water inlet side again and moves the reversing chassis to the ground horizontally. The underwater rolling-over method can be used for completing the rolling-over operation of the reversing chassis under the limited equipment condition.
Description
Technical field
The present invention relates to turn-over method in a kind of reversing chassis water.
Background technology
When large-scale floating crane steel structure (for example reversing chassis) is made in construction, existing weight-lifting equipment possibly can't be finished the operation of standing up of oversize, overweight tonnage steel structure, and because the problem of the scantling of structure of member own also can't be utilized many weight-lifting equipments to finish in some practical application and stand up operation.
Summary of the invention
The technical problem to be solved in the present invention provides turn-over method in a kind of reversing chassis water, can finish the operation of standing up of reversing chassis under the equipment confined condition.
For solving the problems of the technologies described above, the invention provides turn-over method in a kind of reversing chassis water, comprising:
Described reversing chassis comprises relative upper bottom surface and bottom surface and relative water inlet side and promotes side, and hoisting crane lifts described water inlet side and promotes the suspension centre of side, described reversing chassis is sling, under the initial condition of slinging described bottom surface up, upper bottom surface down;
Described hoisting crane moves to described reversing chassis in the water;
The suspension centre of described water inlet side is broken off relations, make the water inlet side entry of described reversing chassis;
The described lifting side of described hoisting crane tractive makes described reversing chassis stand up 180 degree around the revolution of the suspension centre of described lifting side, make described bottom surface down, upper bottom surface up;
Described hoisting crane lifts the suspension centre of described water inlet side again, and described reversing chassis is moved on the ground.
According to one embodiment of present invention, the suffered buoyancy sum of the total stressed upper limit of the suspension hook of each hoisting crane that links to each other with the suspension centre of described lifting side and described reversing chassis lower apron when revolution is stood up is more than or equal to the gravity of described reversing chassis.
According to one embodiment of present invention, described method also comprises: the blowing-by casing to described reversing chassis water inlet side seals.
According to one embodiment of present invention, the weight of described reversing chassis is 1700 tons, and described hoisting crane comprises 4 suspension hooks, wherein is limited to 550 tons on each suspension hook stressed.
According to one embodiment of present invention, 2 suspension hooks in described 4 suspension hooks lift 2 suspension centres of described water inlet side, and other 2 suspension hooks lift 2 suspension centres of described lifting side.
Compared with prior art, the present invention has the following advantages:
In the reversing chassis water of the embodiment of the invention in the turn-over method, place water to stand up the part of reversing chassis, in the load upper limit of hoisting crane hour, can finish the operation of standing up of reversing chassis by buoyancy of water.
Description of drawings
Fig. 1 is the schematic flow sheet of turn-over method in the reversing chassis water of the embodiment of the invention;
Fig. 2 is the lateral plan of the reversing chassis of the embodiment of the invention;
Fig. 3 is that Fig. 2 is along the cutaway view of A1-A1 direction;
Fig. 4 to Figure 12 is the reversing chassis structural representation of each step correspondence in the turn-over method in the reversing chassis water of the embodiment of the invention.
The specific embodiment
The invention will be further described below in conjunction with specific embodiments and the drawings, but should not limit protection scope of the present invention with this.
With reference to figure 1, the schematic flow sheet of turn-over method comprises the steps: in the reversing chassis water of present embodiment
Step S11, described reversing chassis comprises relative upper bottom surface and bottom surface and relative water inlet side and lifting side, hoisting crane lifts described water inlet side and promotes the suspension centre of side, described reversing chassis is sling, under the initial condition of slinging described bottom surface up, upper bottom surface down;
Step S12, described hoisting crane moves to described reversing chassis in the water;
Step S13, the suspension centre unhook with described water inlet side makes the water inlet side entry of described reversing chassis;
Step S14, the described lifting side of described hoisting crane tractive makes described reversing chassis stand up 180 degree around the revolution of the suspension centre of described lifting side, make described bottom surface down, upper bottom surface up;
Step S15, described hoisting crane lifts the suspension centre of described water inlet side again, and described reversing chassis is moved on the bottom surface.
Referring to figs. 2 and 3, as a nonrestrictive example, reversing chassis comprises: side girder 1, back end carriage 2, preceding end carriage 3, center crossbeam 4, preceding center stringer 5, rear center's longeron 6, rear roller beam 7, front wheel amount 8, side wheel beam 9, preceding support rail beam 10, consequence beam-and-rail 11, preceding swing type mechanism support 12, back swing type mechanism support 13.
In an instantiation, the whole structure of reversing chassis weighs 1700 tons, and the wide * height of the long * of oad is 43*36*7.84 rice.Due to limited conditions, available maximum weight-lifting equipment is the crane barge of 2200T, 4 suspension hooks (more specifically, being 4 main hooks) before and after it comprises, and single hook maximum weighted is 550T.By each process of the state of standing up and each parameter of weight-lifting equipment are analyzed, determine to lift with 4 groups of steel ropes at 4 suspension centres of reversing chassis design, i.e. 2 suspension centres of each suspension hook lifting.Wherein, 2 suspension centres are distributed in water inlet side, and other 2 suspension centres are distributed in the lifting side.2 suspension centres of 2 suspension hooks lifting water inlet sides wherein, other 2 suspension hooks lifting promotes 2 suspension centres of side.
In the process of standing up, the water inlet side of reversing chassis partly or completely reversing chassis is positioned under water, relies on the lifting pulling force of hoisting crane itself, and utilizes buoyancy of water to realize standing up of reversing chassis.Wherein, according to law of Archimedes, buoyancy F floats=ρ water * V thing * g, and wherein the V thing represents that reversing chassis is positioned at the volume of part under water.
Each body beam height of reversing chassis differs, at first can calculate the volume of each casing, again according to the depth of water situation of standing up the waters, guarantee that the total stressed F of crane hook is in safe stand under load scope, underwater penetration when supposing to stand up different conditions in the reversing chassis constitution water, and guarantee that F+F is floating〉G, wherein G is the deadweight of reversing chassis.As under the underwater penetration of hypothesis, buoyancy does not meet the demands, can consider blowing-by casing in the reversing chassis structure is sealed, thereby increase buoyancy with the volume that strengthens lower apron, the load upper limit that guarantees each suspension hook adds that buoyancy that lower apron is subjected to is more than or equal to the deadweight of reversing chassis.Secondly still do not satisfy under the situation at the increase volume, can change and stand up the waters, to guarantee to have enough degree of depth.
In the present embodiment, the whole process of standing up can comprise following state: stand up preceding translation → entry keep flat → change suspension centre promote → promote vertical → tilt to stand up → stand up the ground that puts in place → move to.Be elaborated below with reference to Fig. 4 to Figure 12.
At first with reference to figure 4 and Fig. 5, wherein Fig. 5 is that Fig. 4 is along the lateral plan of D direction.Lifting side and water inlet side at reversing chassis 23 arrange suspension centre respectively, and the suspension hook 21 of hoisting crane lifts each suspension centre via the lifting rigging.Still continue above example, 4 suspension hooks lift the suspension centre that promotes side and water inlet side respectively, reversing chassis 23 is sling from the installation on ground moulding bed 24 that is arranged on the bunding 25, under the initial condition, the bottom surface A of reversing chassis 23 up, upper bottom surface B is down.After reversing chassis 23 sling, can be with its direction translation of 6 to the waters.
Under this state, the strained condition of reversing chassis 23 is as follows: F1+F2+F3+F4=G, and wherein F1, F2, F3 and F4 represent the stressed of 4 suspension hooks respectively, G represents the deadweight of reversing chassis 23.
With reference to figure 6, reversing chassis 23 is being moved in the water afterwards.
With reference to figure 7, with the suspension centre unhook of water inlet side, and at water inlet side installation side drag-line tool 27, reversing chassis 23 at first is the state that level is put into water afterwards.Under this state, F1+F2+F floats=G, and wherein F is floating is the reversing chassis 23 suffered buoyancy of part under water.
With reference to figure 8, the hoisting crane tractive promotes the suspension centre of side afterwards, makes whole reversing chassis 23 tilt.Under this state, F1+F2+F floats=G, and wherein F is floating is the reversing chassis 23 suffered buoyancy of part under water.
With reference to figure 9, hoisting crane continues the suspension centre that tractive promotes side afterwards, and whole reversing chassis 23 returns back to plumbness around the suspension centre that promotes side.Under this state, F1+F2+F floats=G, and wherein F is floating is the reversing chassis 23 suffered buoyancy of part under water.
With reference to Figure 10, hoisting crane continues the suspension centre that tractive promotes side afterwards, and whole reversing chassis 23 tilts to stand up.Under this state, F1+F2+F floats=G, and wherein F is floating is the reversing chassis 23 suffered buoyancy of part under water.Wherein, layback rigging 27 can act on when rollover is changed in plumbness, to solve the resistance of water, wind etc., realizes smoothly standing up.
With reference to Figure 11, after standing up, hoisting crane lifts the suspension centre of water inlet side again afterwards, and upper bottom surface B makes progress after keeping standing up, and bottom surface A is downward.Stand up put in place after, F1+F2+F3+F4+F is floating=G.
With reference to Figure 12, hoisting crane moves to reversing chassis 23 on the ground afterwards.Under this state, F1+F2+F3+F4=G.Afterwards, reversing chassis 23 can be reapposed on the installation on ground moulding bed 24.
Though the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (5)
1. turn-over method in the reversing chassis water is characterized in that, comprising:
Described reversing chassis comprises relative upper bottom surface and bottom surface and relative water inlet side and promotes side, and hoisting crane lifts described water inlet side and promotes the suspension centre of side, described reversing chassis is sling, under the initial condition of slinging described bottom surface up, upper bottom surface down;
Described hoisting crane moves to described reversing chassis in the water;
The suspension centre of described water inlet side is broken off relations, make the water inlet side entry of described reversing chassis;
The described lifting side of described hoisting crane tractive makes described reversing chassis stand up 180 degree around the revolution of the suspension centre of described lifting side, make described bottom surface down, upper bottom surface up;
Described hoisting crane lifts the suspension centre of described water inlet side again, and described reversing chassis is moved on the ground.
2. turn-over method in the reversing chassis water according to claim 1, it is characterized in that the suffered buoyancy sum of the total stressed upper limit of the suspension hook of each hoisting crane that links to each other with the suspension centre of described lifting side and described reversing chassis lower apron when revolution is stood up is more than or equal to the gravity of described reversing chassis.
3. turn-over method in the reversing chassis water according to claim 1 is characterized in that, also comprises: the blowing-by casing to described reversing chassis water inlet side seals.
4. turn-over method in the reversing chassis water according to claim 1 is characterized in that, the weight of described reversing chassis is 1700 tons, and described hoisting crane comprises 4 suspension hooks, wherein is limited to 550 tons on each suspension hook stressed.
5. turn-over method in the reversing chassis water according to claim 4 is characterized in that, 2 suspension hooks in described 4 suspension hooks lift 2 suspension centres of described water inlet side, and other 2 suspension hooks lift 2 suspension centres of described lifting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537296.1A CN103318817B (en) | 2012-12-13 | 2012-12-13 | Turn-over method in reversing chassis water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537296.1A CN103318817B (en) | 2012-12-13 | 2012-12-13 | Turn-over method in reversing chassis water |
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| Publication Number | Publication Date |
|---|---|
| CN103318817A true CN103318817A (en) | 2013-09-25 |
| CN103318817B CN103318817B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210537296.1A Active CN103318817B (en) | 2012-12-13 | 2012-12-13 | Turn-over method in reversing chassis water |
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| CN (1) | CN103318817B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946474A (en) * | 2018-06-14 | 2018-12-07 | 沪东中华造船(集团)有限公司 | A kind of turn-over method of two phase stainless steel p-type block |
| CN110692566A (en) * | 2019-10-25 | 2020-01-17 | 上海振华重工(集团)股份有限公司 | Swivel control device of offshore culture platform and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1150211A (en) * | 1965-04-27 | 1969-04-30 | Aktienbolaget Bofors | Device for Lifting and Turning Objects such as Casting Moulds. |
| JPS5373796A (en) * | 1976-12-08 | 1978-06-30 | Hitachi Zosen Corp | Method of loading large structure |
| CN101445206A (en) * | 2008-12-30 | 2009-06-03 | 中铁大桥局集团第四工程有限公司 | Above-water large-scale reinforcement cage hoisting and overturning device |
| CN101870435A (en) * | 2010-05-31 | 2010-10-27 | 南通中远船务工程有限公司 | Overturned hoisting method for helicopter platform |
| CN201713227U (en) * | 2010-04-22 | 2011-01-19 | 华泰(南通)船务有限公司 | Gantry crane for turning of steel structures |
-
2012
- 2012-12-13 CN CN201210537296.1A patent/CN103318817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1150211A (en) * | 1965-04-27 | 1969-04-30 | Aktienbolaget Bofors | Device for Lifting and Turning Objects such as Casting Moulds. |
| JPS5373796A (en) * | 1976-12-08 | 1978-06-30 | Hitachi Zosen Corp | Method of loading large structure |
| CN101445206A (en) * | 2008-12-30 | 2009-06-03 | 中铁大桥局集团第四工程有限公司 | Above-water large-scale reinforcement cage hoisting and overturning device |
| CN201713227U (en) * | 2010-04-22 | 2011-01-19 | 华泰(南通)船务有限公司 | Gantry crane for turning of steel structures |
| CN101870435A (en) * | 2010-05-31 | 2010-10-27 | 南通中远船务工程有限公司 | Overturned hoisting method for helicopter platform |
Non-Patent Citations (1)
| Title |
|---|
| 吕嘉宾: "《起重工技能》", 31 January 2008, article "起重索具", pages: 7 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946474A (en) * | 2018-06-14 | 2018-12-07 | 沪东中华造船(集团)有限公司 | A kind of turn-over method of two phase stainless steel p-type block |
| CN110692566A (en) * | 2019-10-25 | 2020-01-17 | 上海振华重工(集团)股份有限公司 | Swivel control device of offshore culture platform and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103318817B (en) | 2016-06-29 |
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