CN104316336A - Lifting device type testing method and realization system thereof - Google Patents
Lifting device type testing method and realization system thereof Download PDFInfo
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- CN104316336A CN104316336A CN201410428278.9A CN201410428278A CN104316336A CN 104316336 A CN104316336 A CN 104316336A CN 201410428278 A CN201410428278 A CN 201410428278A CN 104316336 A CN104316336 A CN 104316336A
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- lift cylinder
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- oil
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- hydraulic power
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Abstract
The invention, which belongs to the field of the marine technology, discloses a lifting device type testing method and a realization system thereof. The method comprises: an upper latch and a lower latch are inserted into latch holes of a pile leg; hydraulic oil is provided for a lifting cylinder, and the lifting cylinder is controlled to make extension motion until the oil pressure of the hydraulic oil reaches a maximum load value of the lifting cylinder; hydraulic oil is provided for the lifting cylinder, and the lifting cylinder is controlled to make contraction motion until the oil pressure of the hydraulic oil reaches the maximum load value of the lifting cylinder; and whether the upper latch, the lower latch, an upper ring beam, and a lower ring beam are damaged is checked. According to the invention, the upper latch and the lower latch are limited by the latch holes, so that the lifting cylinder can reach a set pressure. Therefore, simulation of the extra large load on the actual work condition can be realized, thereby completing the type testing of the lifting device.
Description
Technical field
The present invention relates to extra large work technical field, particularly a kind of jacking gear type approval test method and realize system.
Background technology
Self-elevating ocean platform mainly comprises spud leg, jacking gear and main platform body.Jacking gear is the key core equipment of self-elevating ocean platform, and the security of jacking gear determines the security of self-elevating ocean platform entirety.The margin of safety occurred in history repeatedly because of jacking gear is inadequate, causes self-elevating ocean platform to cave in, causes the event of major accident.
In order to ensure that the security of jacking gear meets design requirement, be necessary in the manufacture process of jacking gear, carry out type approval test (in order to verify the test that whole requirements that can product meet technical manual are carried out).Type approval test needs the load working condition under the work of simulation jacking system, but the jacking capacity of jacking gear mostly is hundreds of ton, even reaches a few kiloton, and load large is like this difficult to simulation, thus cannot carry out type approval test to jacking gear.
Summary of the invention
The problem of type approval test cannot be carried out to solve prior art to jacking gear, embodiments providing a kind of jacking gear type approval test method and realizing system.Described technical scheme is as follows:
On the one hand, embodiments provide a kind of jacking gear type approval test method, be applicable to the hydraulic bolt formula jacking gear of ocean platform, described jacking gear comprises ring beam, the upper latch be arranged on described upper ring beam, lower ring, be arranged on the lift cylinder that lower latch on described lower ring and upper and lower end connect described upper ring beam and described lower ring respectively, and described method comprises:
Described upper latch and described lower latch are all inserted in the pin hole on spud leg;
For described lift cylinder provides hydraulic oil, and control described lift cylinder and do elongation action until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder;
For described lift cylinder provides hydraulic oil, and control described lift cylinder and do under reach until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder;
Check and whether described upper latch, described lower latch, described upper ring beam and described lower ring damage.
In a kind of possible implementation of the present invention, describedly provide hydraulic oil for described lift cylinder, and control described lift cylinder and do elongation action until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder, comprising:
With hydraulic power unit for described lift cylinder provides hydraulic oil, the maximum output oil pressure of described hydraulic power unit is set as the maximum load value of described lift cylinder simultaneously;
Control described lift cylinder and do elongation action until the output oil pressure of described hydraulic power unit reaches described maximum output oil pressure.
In the another kind of possible implementation of the present invention, describedly provide hydraulic oil for described lift cylinder, and control described lift cylinder and do under reach until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder, comprising:
With hydraulic power unit for described lift cylinder provides hydraulic oil, the maximum output oil pressure of described hydraulic power unit is set as the maximum load value of described lift cylinder simultaneously;
Controlling described lift cylinder does under reach until the output oil pressure of described hydraulic power unit reaches described maximum output oil pressure.
Alternatively, the described maximum output oil pressure by hydraulic power unit is set as the maximum load value of described lift cylinder, comprises;
It is the maximum load value of described lift cylinder by the design of pressure of the surplus valve of described hydraulic power unit.
In another possible implementation of the present invention, described described upper latch and described lower latch all to be inserted in the pin hole on spud leg, comprising:
Plugging pin oil cylinder is adopted described upper latch and described lower latch all to be inserted in the pin hole on spud leg.
In another possible implementation of the present invention, described method also comprises:
When described upper latch, described lower latch, described upper ring beam or described lower ring existing the visible crack of human eye, judge that described jacking gear does not meet the requirement of technical manual;
When described upper latch, described lower latch, described upper ring beam and described lower ring not existing the visible crack of human eye, judge that described jacking gear meets the requirement of technical manual.
In another possible implementation of the present invention, described method also comprises:
UT (Ultrasonic Testing) detection is carried out to the commissure of described upper ring beam and described lower ring and stressed place;
When UT (Ultrasonic Testing) testing result reaches one-level or secondary, judge that described jacking gear meets the requirement of technical manual.
On the other hand, embodiments provide a kind of system realizing above-mentioned jacking gear type approval test method, described system comprises jacking gear, spud leg, hydraulic power unit and electrical control cabinet;
Described jacking gear comprises ring beam, the upper latch be arranged on described upper ring beam, lower ring, be arranged on the lift cylinder that lower latch on described lower ring and upper and lower end connect described upper ring beam and described lower ring respectively, described upper latch and described lower latch insert in the pin hole of described spud leg respectively
Described hydraulic power unit is communicated with described lift cylinder, and described electrical control cabinet is electrically connected with described hydraulic power unit.
In a kind of possible implementation of the present invention, the pitch of the pin hole of described spud leg is greater than the bee-line that can reach between described upper latch and described lower latch, and the pitch of the pin hole of described spud leg is less than the longest distance that can reach between described upper latch and described lower latch.
In the another kind of possible implementation of the present invention, described hydraulic power unit comprises reversal valve, surplus valve, fuel tank, variable output pump and provides the motor of power for described variable output pump; The oil-in of described variable output pump is communicated with the oil-in of described fuel tank with described reversal valve with oil-out is corresponding respectively, first actuator port of described reversal valve is communicated with described lift cylinder respectively with the second actuator port, the oil return opening of described reversal valve is communicated with described fuel tank, the control part of described reversal valve is electrically connected with described electrical control cabinet, the oil-in of described surplus valve is connected on the fluid pressure line between described reversal valve and described variable output pump, and the oil-out of described surplus valve is communicated with described fuel tank.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
After inserting the pin hole of spud leg by upper latch and lower latch, control lift cylinder to carry out elongating or shortening action, pin hole is utilized to carry out spacing to upper latch and lower latch and make lift cylinder reach set pressure, achieve the simulation to the super large load under actual condition, and then complete the type approval test to jacking gear.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of a kind of jacking gear type approval test method that the embodiment of the present invention one provides;
Fig. 2 is a kind of structural representation realizing the system of jacking gear type approval test method that the embodiment of the present invention two provides;
Fig. 3 is the structural representation of the hydraulic power unit that the embodiment of the present invention two provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Embodiments provide a kind of jacking gear type approval test method, be applicable to the hydraulic bolt formula jacking gear of ocean platform, jacking gear comprises ring beam, the upper latch be arranged on ring beam, lower ring, be arranged on the lift cylinder that lower latch on lower ring and upper and lower end connect ring beam and lower ring respectively.See Fig. 1, the method comprises:
Step 101: upper latch and lower latch are all inserted in the pin hole on spud leg.
In a kind of implementation of the present embodiment, this step 101 can comprise:
Plugging pin oil cylinder is adopted upper latch and lower latch all to be inserted in the pin hole on spud leg.
In the another kind of implementation of the present embodiment, this step 101 can comprise:
Artificially upper latch and lower latch are all inserted in the pin hole on spud leg.
Step 102: for lift cylinder provides hydraulic oil, and control lift cylinder and do elongation action until the oil pressure of hydraulic oil reaches the maximum load value of lift cylinder.
In a kind of implementation of the present embodiment, this step 102 can comprise:
With hydraulic power unit for lift cylinder provides hydraulic oil, the maximum output oil pressure of hydraulic power unit is set as the maximum load value of lift cylinder simultaneously;
Control lift cylinder and do elongation action until the output oil pressure of hydraulic power unit reaches maximum output oil pressure.
Alternatively, the maximum output oil pressure of hydraulic power unit is set as the maximum load value of lift cylinder, comprises;
It is the maximum load value of lift cylinder by the design of pressure of the surplus valve of hydraulic power unit.
Particularly, the maximum load of lift cylinder can be determined by concrete lift cylinder, and as 3000t, 6000t, 8000t etc., the present invention is not restricted this.
Step 103: for lift cylinder provides hydraulic oil, and control lift cylinder and do under reach until the oil pressure of hydraulic oil reaches the maximum load value of lift cylinder.
In the another kind of implementation of the present embodiment, this step 103 can comprise:
With hydraulic power unit for lift cylinder provides hydraulic oil, the maximum output oil pressure of hydraulic power unit is set as the maximum load value of lift cylinder simultaneously;
Controlling lift cylinder does under reach until the output oil pressure of hydraulic power unit reaches maximum output oil pressure.
Alternatively, the maximum output oil pressure of hydraulic power unit is set as the maximum load value of lift cylinder, comprises;
It is the maximum load value of lift cylinder by the design of pressure of the surplus valve of hydraulic power unit.
Particularly, the maximum load of lift cylinder can be determined by concrete lift cylinder, and as 3000t, 6000t, 8000t etc., the present invention is not restricted this.
Step 104: whether latch, lower latch, upper ring beam and lower ring damage in inspection.
It should be noted that, step 102 and step 103 do not have sequencing, first can perform step 102, then perform step 103, first can perform step 103 yet, then perform step 102.
In another implementation of the present embodiment, the method can also comprise:
When upper latch, lower latch, upper ring beam or lower ring existing the visible crack of human eye, judge that jacking gear does not meet the requirement of technical manual;
When upper latch, lower latch, upper ring beam and lower ring not existing the visible crack of human eye, judge that jacking gear meets the requirement of technical manual.
In another implementation of the present embodiment, the method can also comprise:
UT (Ultrasonic Testing) detection is carried out to the commissure of upper ring beam and lower ring and stressed place;
When UT (Ultrasonic Testing) testing result reaches one-level or secondary, judge that jacking gear meets the requirement of technical manual.
After the embodiment of the present invention inserts the pin hole of spud leg by upper latch and lower latch, control lift cylinder to carry out elongating or shortening action, pin hole is utilized to carry out spacing to upper latch and lower latch and make lift cylinder reach set pressure, achieve the simulation to the super large load under actual condition, and then complete the type approval test to jacking gear.
Embodiment two
Embodiments provide a kind of system realizing the jacking gear type approval test method provided as embodiment one, see Fig. 2, this system comprises jacking gear 1, spud leg 2, hydraulic power unit 3 and electrical control cabinet 4.
In the present embodiment, jacking gear 1 comprises ring beam 11, the upper latch 12 be arranged on ring beam 11, lower ring 13, is arranged on the lift cylinder 15 that lower latch 14 on lower ring 13 and upper and lower end connect ring beam 11 and lower ring 13 respectively.Upper latch 12 and lower latch 14 insert in the pin hole of spud leg 2 respectively.
Hydraulic power unit 3 is communicated with lift cylinder 15, and electrical control cabinet 4 is electrically connected with hydraulic power unit 3.
Alternatively, the pitch of the pin hole of spud leg 2 is greater than the bee-line that can reach between latch 12 and lower latch 14, and the pitch of the pin hole of spud leg 2 is less than the longest distance that can reach between latch 12 and lower latch 14.
Alternatively, hydraulic power unit 3 can be communicated with lift cylinder 15 by fluid pressure line.
Alternatively, electrical control cabinet 4 can be electrically connected with hydraulic power unit 3 by cable.
Alternatively, see Fig. 3, hydraulic power unit 3 comprises reversal valve 31, surplus valve 32, fuel tank 33, variable output pump 34 and provides the motor 35 of power for variable output pump 34.The oil-in of variable output pump 34 is communicated with the oil inlet P of fuel tank 33 with reversal valve 31 with oil-out is corresponding respectively.First actuator port C of reversal valve 33 is communicated with lift cylinder 15 respectively with the second actuator port D, and the oil return inlet T of reversal valve 33 is communicated with fuel tank 33, and the control part of reversal valve 33 is electrically connected with electrical control cabinet 4.The oil-in of surplus valve 32 is connected on the fluid pressure line between reversal valve 31 and variable output pump 34, and the oil-out of surplus valve 32 is communicated with fuel tank 33.
Particularly, reversal valve 31 can be three-position four-way valve, and the spool of reversal valve 31 can be positioned at three positions.When the spool of reversal valve 31 is positioned at a position, lift cylinder 15 does elongation action; When the spool of reversal valve 31 is positioned at another position, lift cylinder 15 does under reach; When the spool of reversal valve 31 is positioned at another position, lift cylinder 15 stops action, does not namely do action, thus realizes elongation and the shortening of lift cylinder 15.
After the embodiment of the present invention inserts the pin hole of spud leg by upper latch and lower latch, control lift cylinder to carry out elongating or shortening action, pin hole is utilized to carry out spacing to upper latch and lower latch and make lift cylinder reach set pressure, achieve the simulation to the super large load under actual condition, and then complete the type approval test to jacking gear.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a jacking gear type approval test method, it is characterized in that, be applicable to the hydraulic bolt formula jacking gear of ocean platform, described jacking gear comprises ring beam, the upper latch be arranged on described upper ring beam, lower ring, be arranged on the lift cylinder that lower latch on described lower ring and upper and lower end connect described upper ring beam and described lower ring respectively, and described method comprises:
Described upper latch and described lower latch are all inserted in the pin hole on spud leg;
For described lift cylinder provides hydraulic oil, and control described lift cylinder and do elongation action until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder;
For described lift cylinder provides hydraulic oil, and control described lift cylinder and do under reach until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder;
Check and whether described upper latch, described lower latch, described upper ring beam and described lower ring damage.
2. method according to claim 1, is characterized in that, describedly provides hydraulic oil for described lift cylinder, and controls described lift cylinder and do elongation action until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder, comprising:
With hydraulic power unit for described lift cylinder provides hydraulic oil, the maximum output oil pressure of described hydraulic power unit is set as the maximum load value of described lift cylinder simultaneously;
Control described lift cylinder and do elongation action until the output oil pressure of described hydraulic power unit reaches described maximum output oil pressure.
3. method according to claim 1, is characterized in that, describedly provides hydraulic oil for described lift cylinder, and controls described lift cylinder and do under reach until the oil pressure of described hydraulic oil reaches the maximum load value of described lift cylinder, comprising:
With hydraulic power unit for described lift cylinder provides hydraulic oil, the maximum output oil pressure of described hydraulic power unit is set as the maximum load value of described lift cylinder simultaneously;
Controlling described lift cylinder does under reach until the output oil pressure of described hydraulic power unit reaches described maximum output oil pressure.
4. according to the method in claim 2 or 3, it is characterized in that, the described maximum output oil pressure by hydraulic power unit is set as the maximum load value of described lift cylinder, comprises;
It is the maximum load value of described lift cylinder by the design of pressure of the surplus valve of described hydraulic power unit.
5. method according to claim 1, is characterized in that, describedly described upper latch and described lower latch is all inserted in the pin hole on spud leg, comprising:
Plugging pin oil cylinder is adopted described upper latch and described lower latch all to be inserted in the pin hole on spud leg.
6. method according to claim 1, is characterized in that, described method also comprises:
When described upper latch, described lower latch, described upper ring beam or described lower ring existing the visible crack of human eye, judge that described jacking gear does not meet the requirement of technical manual;
When described upper latch, described lower latch, described upper ring beam and described lower ring not existing the visible crack of human eye, judge that described jacking gear meets the requirement of technical manual.
7. method according to claim 1, is characterized in that, described method also comprises:
UT (Ultrasonic Testing) detection is carried out to the commissure of described upper ring beam and described lower ring and stressed place;
When UT (Ultrasonic Testing) testing result reaches one-level or secondary, judge that described jacking gear meets the requirement of technical manual.
8. one kind realizes the system of the jacking gear type approval test method as described in any one of claim 1-3, it is characterized in that, described system comprises jacking gear (1), spud leg (2), hydraulic power unit (3) and electrical control cabinet (4);
Described jacking gear (1) comprises ring beam (11), the upper latch (12) be arranged on described upper ring beam (11), lower ring (13), be arranged on the lift cylinder (15) that lower latch (14) on described lower ring (13) and upper and lower end connect described upper ring beam (11) and described lower ring (13) respectively, described upper latch (12) and described lower latch (14) insert in the pin hole of described spud leg (2) respectively
Described hydraulic power unit (3) is communicated with described lift cylinder (15), and described electrical control cabinet (4) is electrically connected with described hydraulic power unit (3).
9. system according to claim 8, it is characterized in that, the pitch of the pin hole of described spud leg (2) is greater than the bee-line that can reach between described upper latch (12) and described lower latch (14), and the pitch of the pin hole of described spud leg (2) is less than the longest distance that can reach between described upper latch (12) and described lower latch (14).
10. system according to claim 8, it is characterized in that, described hydraulic power unit (3) comprises reversal valve (31), surplus valve (32), fuel tank (33), variable output pump (34) and is the motor (35) that described variable output pump (34) provides power, the oil-in of described variable output pump (34) is communicated with the oil-in (P) of described reversal valve (31) with described fuel tank (33) with oil-out is corresponding respectively, first actuator port (C) of described reversal valve (33) is communicated with described lift cylinder (15) respectively with the second actuator port (D), the oil return opening (T) of described reversal valve is communicated with described fuel tank (33), the control part of described reversal valve (33) is electrically connected with described electrical control cabinet (4), the oil-in of described surplus valve (32) is connected on the fluid pressure line between described reversal valve (31) and described variable output pump (34), the oil-out of described surplus valve (32) is communicated with described fuel tank (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410428278.9A CN104316336B (en) | 2014-08-28 | 2014-08-28 | A kind of lowering or hoisting gear type approval test method and its realize system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410428278.9A CN104316336B (en) | 2014-08-28 | 2014-08-28 | A kind of lowering or hoisting gear type approval test method and its realize system |
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| CN104316336A true CN104316336A (en) | 2015-01-28 |
| CN104316336B CN104316336B (en) | 2017-09-01 |
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| CN105628422A (en) * | 2015-12-26 | 2016-06-01 | 武汉船用机械有限责任公司 | Experiment system suitable for pin elevating mechanism |
| CN105716859A (en) * | 2016-03-28 | 2016-06-29 | 武汉船用机械有限责任公司 | Drive assembly detection device used for gear and rack lifting mechanism |
| CN106644543A (en) * | 2016-12-21 | 2017-05-10 | 广东精铟海洋工程股份有限公司 | Static load simulation detection method for offshore platform hydraulic lifting mechanisms |
| CN106680004A (en) * | 2016-12-21 | 2017-05-17 | 广东精铟海洋工程股份有限公司 | Detection device of offshore platform hydraulic type elevating mechanism |
| CN106769012A (en) * | 2016-12-21 | 2017-05-31 | 广东精铟海洋工程股份有限公司 | A kind of dynamic load analog detecting method of offshore platform hydraulic formula elevating mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105628422A (en) * | 2015-12-26 | 2016-06-01 | 武汉船用机械有限责任公司 | Experiment system suitable for pin elevating mechanism |
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| CN106769012A (en) * | 2016-12-21 | 2017-05-31 | 广东精铟海洋工程股份有限公司 | A kind of dynamic load analog detecting method of offshore platform hydraulic formula elevating mechanism |
| CN106769012B (en) * | 2016-12-21 | 2019-02-22 | 广东精铟海洋工程股份有限公司 | A kind of dynamic load analog detecting method of offshore platform hydraulic formula elevating mechanism |
| CN106644543B (en) * | 2016-12-21 | 2019-06-04 | 广东精铟海洋工程股份有限公司 | A kind of static load analog detecting method of offshore platform hydraulic formula elevating mechanism |
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| CN104316336B (en) | 2017-09-01 |
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