CN106081944B

CN106081944B - A test method for the hoisting weight of a heavy lift vessel

Info

Publication number: CN106081944B
Application number: CN201610295392.8A
Authority: CN
Inventors: 薛建新; 卞广飞
Original assignee: JIANGSU HONGQIANG MARINE HEAVY INDUSTRY Co Ltd
Current assignee: JIANGSU HONGQIANG MARINE HEAVY INDUSTRY CO LTD
Priority date: 2016-05-06
Filing date: 2016-05-06
Publication date: 2019-02-12
Anticipated expiration: 2036-05-06
Also published as: CN106081944A

Abstract

The present invention relates to a kind of abridged edition type hoisting test methods of heavy lift carrier, method includes the following steps: (1) experiment of weighing hoist；(2) overload test；(3) load test；(4) wheels-locked testing；(5) safety feature test；(6) post-test-inspection.The present invention has the advantages that the abridged edition type hoisting test method of heavy lift carrier of the present invention, compared with conventional test methods, it does not need using extraneous weight, directly using hanging on heavy lift carrier/two deck of self-propelled hatchway cover and 1x hanging block, both it reduced costs, it has been greatly reduced labor intensity, and has been made easy to operate.

Description

A kind of abridged edition type hoisting test method of heavy lift carrier

Technical field

The invention belongs to technical field of ships, in particular to the abridged edition type hoisting test method of a kind of heavy lift carrier.

Background technique

With the needs that marine cause develops, operation on the sea is increasingly enlarged, this requires to get over to marine large lifting equipment Come higher.Rising on heavy lift carrier enables the manufacture requirement hung high, and difficulty is big, wherein acting enable the hoisting test hung be mostly important one Ring, the purpose of test are to examine the installation integrity of crane, correctness, functional reliability, and verify whether performance indicator accords with Close design and test program requirement.Therefore rising and enabling the hoisting test hung is a comprehensive complicated engineering.Existing heavy lift carrier Hoisting test method, be usually transported on ship from harbour by huge heavy weight, order then used to hang and match with huge heavy weight Conjunction is tested, but the test method have the defects that it is certain: in the test method, need to by huge heavy transporting heavy things to ship, Hoisting test is carried out again, process is more complicated, meanwhile, extraneous weight need to be used, will increase cost, and transports weight to enhance labor Fatigue resistance.

Therefore, a kind of abridged edition type hoisting test that can reduce cost, labor intensity and easily operated heavy lift carrier is researched and developed Method is necessary.

Summary of the invention

It can reduce cost, labor intensity the technical problem to be solved in the present invention is to provide a kind of and easily operated hang again The abridged edition type hoisting test method of ship.

In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of abridged edition type hoisting test method of heavy lift carrier, Method includes the following steps:

(1) experiment of weighing hoist: weighing examines the test hoist approved by shipowner's ship, hangs/self-propelled hatchway cover P25 hangs/self-propelled hatchway cover P26, and two deck D5, two deck D 12, two deck D 7, two deck D6 and several weight are not One 1x hanging block；

(2) overload test:

A.1# crane main hook load raising test: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled cabin Cover board P26, two deck D 5, two deck D 6 and two deck D 12；To be hung using 1# crane/self-propelled hatchway cover P26 hangs To FR106, that is, hatchcover stop place is moved ,/self-propelled hatchway cover P25 block hoist superposition then will be hung by 1# crane On hatch coaming, and lock, then successively D6, D5 and D12 are added to by wharf crane and hung/self-propelled hatchway cover P25 on, make Loading Center is located at FR106, and 1# crane raising radius is 18m at this time；Suspender is hung, main hook, which slowly rises, rises to 5 meters of height, and by 5 The high position of rice is defined as position A；

B.1# crane main hook load luffing test: after step a, from position, A does luffing movement, reaches luffing movement To maximum functional angle, it is then back to position A；

C.1# crane main hook loads turning test: after step b, first rotating clockwise 360 ° from position A, then again Slowly 360 ° of revolution returns to position A counterclockwise, then slowly falls and removes hoist；

D.1# crane main hook load raising test: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled cabin Cover board P26, the 1x hanging block of two deck D 5 and 13.5t；To be hung using 1# crane/self-propelled hatchway cover P25 is hung to FR106 Place, then successively two deck D6 and 1x hanging blocks are added to by wharf crane hang/self-propelled hatchway cover P25 on, make in prestowage The heart is located at FR106, hang at this time/self-propelled hatchway cover P25 raising radius be 18m；Suspender is hung, main hook is slow after rising to 5 meters Outboard is screwed out to boom and beam upright position, then slow luffing to minimum operating angle, and by the minimum operating angle of main hook The location of degree is defined as position B, then slow 5 meters of slow raising again after 5 meters of weight of decline, and the radius of gyration is 33 at this time Rice；

E.1# crane main hook load luffing test: after step d, from position B slowly do luffing move to touch less than 9 meters of the least radius of loop wheel machine ontology, then luffing returns to initial position B to 33 meters of maximum working radius again；

F.1# crane main hook loads turning test: after step e, first slowly rotating about 70 ° clockwise from position B simultaneously Stop, then counterclockwise slowly 140 ° of stoppings of rotation, then rotate clockwise 70 ° of stoppings, after rotating, boom is slow Luffing slowly returns back to initial position FR106 stopping to 18 meters of the radius of gyration, slowly falls and removes weight；

G.1# crane auxiliary hook raising is tested: by boom rotation direction harbour, with the 1x hanging block of auxiliary hook lifting 50t, auxiliary hook work 36.5 meters of radius, first auxiliary hook is slowly risen and rises to 5 meters of height, then slowly falls and removes hoist；Again with wharf crane by the 1x of 50t Hanging block is hung to 3.5 meters of the position away from FR127 on ship, and 1# crane lifts by crane the 1x hanging block of 50t, auxiliary hook working radius with auxiliary hook 5.1 meters, then auxiliary hook is slowly increased to 5 meters of height, it then slowly falls and removes hoist；

H. it uses 1# crane instead 2# crane, overload test is carried out using 2# crane, the test procedure repeats step (a) ~(g)；

(3) load test:

A.1# crane is once tested: hoist includes hanging/self-propelled hatchway cover P25 and two deck D 5；Utilize 1# grams Order, which is hung, to be hung/and self-propelled hatchway cover P25 is hung at FR106, and then two deck D5 are added to and hang/self-propelled hatchway cover On P25, Loading Center is made to be located at FR106,1# crane raising radius is 18m at this time；

Hoist is hung, after boom rotates outboard to boom and beam upright position, boom position is defined as position C, with normal Speed does three raising, revolution, luffing movement joint operations, and lifting altitude peaks, and angle of revolution is controlled in position C70 °, luffing requires to accomplish 9 meters and 33 meters of maximum working radius of minimum working radius, continues 15 minutes, finally in initial position FR106 removes hoist；

B.1# crane second trial: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled hatchway cover P26, Two deck D 5 and two deck D12；To be hung using 1# crane/self-propelled hatchway cover P26 is hung at FR106, then it will hang From/self-propelled hatchway cover P25, two deck D5 and two deck D12 be added to hang/self-propelled hatchway cover P26 on, make Loading Center Positioned at FR106,1# crane raising radius is 18m at this time；Hoist is hung, raising, revolution, luffing three movements are done with normal speed Joint operation, lifting altitude peak, 360 ° of angle of revolution, and luffing requires to accomplish 9 meters of minimum working radius and maximum work Make 33 meters of radius, continues 15 minutes, finally remove hoist in FR106；

C.1# crane auxiliary hook raising is tested: by boom rotation direction harbour, boom is vertical with captain direction, and by boom position It is defined as position D, hoist is lifted by crane with auxiliary hook, three raising, revolution, luffing movement joint operations is done with normal speed, rise and increase Degree peaks, and D70 ° of position, luffing requires to accomplish 9 meters of minimum working radius and maximum working radius for angle of revolution control 36.5 meters, continue 15 minutes, finally removes hoist in initial position FR106；

D. it uses 1# crane instead 2# crane, load test is carried out using 2# crane, the test procedure repeats step (a) ~(c)；

(4) wheels-locked testing:

A. main hook loads a wheels-locked testing: in a in step (3), respectively maximum working radius, maximum raising and Brake when maximum falling speed, raising does 1 brake, and 3 brakes are done in decline, meanwhile, when maximum rotational speed, maximum luffing into Row stops test；

B. main hook load secondary braking test: in the b in step (3), respectively maximum working radius, maximum raising and It brakes when decrease speed, raising does 1 brake, and 3 brakes are done in decline, meanwhile, when maximum rotational speed, maximum luffing, is stopped Only test；

C. it uses 1# crane instead 2# crane, wheels-locked testing is carried out using 2# crane, the test procedure repeats step (a) ~(b)；

(5) safety feature test:

A. emergency stop test: starting pumping plant, respectively at crane driver's cabin, main junction box, power unit, channel into The cutting test of row emergency button, guarantees pumping plant can be made to stop working immediately in these position emergency switching-ofves；

B. emergency manual operation test: cutting off the power, raising of being decided respectively with manual pump, secondary raising, luffing and rotation；

C. emergency load discharges test: first main hook is tested, starts pumping plant, is stopped after hoist is lifted by crane 0.5 meter, and Button release hoist is discharged by pressing emergency；Auxiliary hook is tested again, starts pumping plant, is stopped after hoist is lifted by crane 0.5 meter, and Button release hoist is discharged by pressing emergency；The hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled hatchcover Plate P26, two deck D5, two deck D6 and two deck D12.

(6) post-test-inspection: check that whether there is or not obvious deformation or damages for crane structure；The crane includes 1# grams of order It hangs and 2# crane.

The present invention has the advantages that the abridged edition type hoisting test method of heavy lift carrier of the present invention, compared with conventional test methods, It does not need using extraneous weight, directly using hanging on heavy lift carrier/two deck of self-propelled hatchway cover and 1x hanging block, both reduced Cost, has been greatly reduced labor intensity, and make easy to operate.

Detailed description of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 to Fig. 8 is the process schematic of the abridged edition type hoisting test method of heavy lift carrier of the present invention.

Specific embodiment

The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this It is bright to be limited among the embodiment described range.

Embodiment

The abridged edition type hoisting test method of the heavy lift carrier of the present embodiment, method includes the following steps:

(1) experiment of weighing hoist: weighing examines the test hoist approved by shipowner's ship, and 90t's hangs/self-propelled hatchcover The hanging of plate P25,90t/self-propelled hatchway cover P26,34t two deck D5, the two deck D 7 of the two deck D 12 of 34t, 30t, The two deck D6 of 30t, the 1x hanging block of 13.5t, the 1x hanging block of 45t and the 1x hanging block of 50t.

(2) overload test:

A.1# crane main hook load raising test: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled cabin Cover board P26, two deck D 5, two deck D 6 and two deck D 12；As shown in Figure 1 ,/self-propelled will be hung using 1# crane Hatchway cover P26 is hung at FR106, that is, moves hatchcover stop place, and P25 block hoist is then superimposed upon hatch by 1# crane It places, and locks, then successively two deck D6, two deck D5 and D12 are added to and hang/self-propelled hatchway cover by wharf crane On P25, Loading Center is made to be located at FR106,1# crane raising radius is 18m at this time；Suspender is hung, main hook, which slowly rises, rises to 5 meters Height, and this 5 meters of high positions are defined as position A；And log is in table 1；

B.1# crane main hook load luffing test: after step a, from position, A does luffing movement, reaches luffing movement To maximum functional angle, it is then back to position A；And log is in table 1；

C.1# crane main hook loads turning test: after step b, first rotating clockwise 360 ° from position A, then again Slowly 360 ° of revolution returns to position A counterclockwise, then slowly falls and removes hoist；And log is in table 1；

D.1# crane main hook load raising test: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled cabin Cover board P26, the 1x hanging block of two deck D 5 and 13.5t；As shown in Fig. 2,/self-propelled hatchway cover will be hung using 1# crane P25 is hung at FR106, and then successively two deck D6 and hanging block are added to by wharf crane and hang/self-propelled hatchway cover P25 On, so that Loading Center is located at FR106, crane raising radius is 18m at this time；Suspender is hung, main hook slowly screws out after rising to 5 meters Outboard is to boom and beam upright position, then slow luffing to minimum operating angle, and by the minimum operating angle institute of main hook The position at place is defined as position B, then slow 5 meters of slow raising again after 5 meters of weight of decline, and the radius of gyration is 33 meters at this time；And Log is in table 1；

E.1# crane main hook load luffing test: after step d, from position B slowly do luffing move to touch less than 9 meters of the least radius of loop wheel machine ontology, then luffing returns to position B to 33 meters of maximum working radius again；And log in Table 1；

F.1# crane main hook loads turning test: after step e, first slowly rotating about 70 ° clockwise from position B simultaneously Stop, then counterclockwise slowly 140 ° of stoppings of rotation, then rotate clockwise 70 ° of stoppings, after rotating, boom is slow Luffing slowly returns back to initial position FR106 stopping to 18 meters of the radius of gyration, slowly falls and removes weight；And record examination Result is tested in table 1；

G.1# crane auxiliary hook raising is tested: by boom rotation direction harbour, with the 1x hanging block of auxiliary hook lifting 50t, auxiliary hook work 36.5 meters of radius, first auxiliary hook is slowly risen and rises to 5 meters of height, then slowly falls and removes hoist；Again with wharf crane by the 1x of 50t Hanging block is hung to 3.5 meters of the position away from FR127 on ship, and 1# crane lifts by crane the 1x hanging block of 50t, auxiliary hook working radius with auxiliary hook 5.1 meters, then auxiliary hook is slowly increased to 5 meters of height, it then slowly falls and removes hoist；And log is in table 1；

H. it uses 1# crane instead 2# crane, overload test is carried out using 2# crane, is as shown in Figure 3 superimposed hoist To such as figure position, the test procedure repeats step (a)~(c), and log is in table 1；Hoist is superimposed as shown in Figure 4 To such as figure position, the test procedure repeats step (d)~(f), and log is in table 1；The examination of 2# crane auxiliary hook raising It tests process and repeats step g.

(3) load test:

A.1# crane is once tested: hoist includes hanging/self-propelled hatchway cover P25 and two deck D 5；Such as Fig. 5 institute Show, will be hung using 1# crane/self-propelled hatchway cover P25 is hung at FR106, then two deck D5 are added to hang/from On line hatchway cover P25, Loading Center is made to be located at FR106, crane raising radius is 18m at this time；Hoist is hung, boom rotates the side of a ship Outside to behind boom and beam upright position, boom position is defined as position C, with normal speed do raising, revolution, luffing three it is dynamic Make joint operation, lifting altitude peaks, and C70 ° of position, luffing requires to accomplish minimum working radius for angle of revolution control 9 meters and 33 meters of maximum working radius, continue 15 minutes, finally remove hoist in initial position FR106, and records raising, returns Turn, derricking speed and hydraulic oil temperature are in table 2；

B.1# crane second trial: hoist includes hanging/self-propelled hatchway cover P25, hangs/self-propelled hatchway cover P26, Two deck D 5 and two deck D12；As shown in fig. 6, will be hung using 1# crane/self-propelled hatchway cover P26 is hung at FR106, Then will hang/self-propelled hatchway cover P25, two deck D5 and two deck D12 be added to hang/self-propelled hatchway cover P26 on, make Loading Center is located at FR106, and crane raising radius is 18m at this time；Hoist is hung, raising, revolution, luffing three are done with normal speed A movement joint operation, lifting altitude peak, 360 ° of angle of revolution, luffing require to accomplish 9 meters of minimum working radius and 33 meters of maximum working radius, continue 15 minutes, finally removes hoist in initial position FR106, and record raising, revolution, change Amplitude velocity degree and hydraulic oil temperature are in table 2；

C.1# crane auxiliary hook raising is tested: by boom rotation direction harbour, boom is vertical with captain direction, and by boom position It is defined as position D, hoist is lifted by crane with auxiliary hook, three raising, revolution, luffing movement joint operations is done with normal speed, rise and increase Degree peaks, and D70 ° of position, luffing requires to accomplish 9 meters of minimum working radius and maximum working radius for angle of revolution control 36.5 meters, continue 15 minutes, finally remove hoist in initial position FR106, and record raising, revolution, derricking speed and Hydraulic oil temperature is in table 2；

D. it uses 1# crane instead 2# crane, load test is carried out using 2# crane, as shown in fig. 7, hoist is folded It is added to such as figure position, the test procedure repeats step (a), and records raising, revolution, derricking speed and hydraulic oil temperature in table 2； As shown in figure 8, being added to hoist such as figure position, the test procedure repeats step (b), and record raising, revolution, derricking speed with And hydraulic oil temperature is in table 2；2# crane auxiliary hook raising the test procedure repeats step (c), and records raising, revolution, luffing speed Degree and hydraulic oil temperature are in table 2.

(4) wheels-locked testing:

C. it uses 1# crane instead 2# crane, wheels-locked testing is carried out using 2# crane, the test procedure repeats step (a) ~(b).

(5) safety feature test:

(6) post-test-inspection: check that whether there is or not obvious deformation or damages for crane structure.The crane includes 1# grams of order It hangs and 2# crane.

1 overload test result of table

2 load test result of table

Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and Its equivalent thereof.

Claims

1. a section type lifting weight test method of a heavy lift vessel, is characterized in that: the method comprises the following steps:

(1) Weighing test hoist: Weigh the test hoist approved by the owner's ship inspection, lift off/self-propelled hatch cover P25, lift off/self-propelled hatch cover P26, second deck D5, second deck D 12 , the second deck D 7, the second deck D6 and several 1x lifting blocks of different weights;

(2) Overload test:

a.1# gram crane main hook load lifting test: lifting weight includes lifting off/self-propelled hatch cover P25, lifting off/self-propelled hatch cover P26, second deck D 5, second deck D 6, and second deck D 12; Use a 1# gram crane to lift the lift off/self-propelled hatch cover P26 to FR106, that is, move the stop position of the hatch, and then lift the lift off/self-propelled hatch cover P25 by a 1# gram crane Superimpose it on the hatch coaming and lock it, and then superimpose D6, D5 and D12 on the lift-off/self-propelled hatch cover P25 in turn by the dock crane, so that the stowage center is located at FR106, at this time, the 1# gram crane The lifting radius is 18m; hang the spreader, the main hook is slowly lifted to 5 meters high, and the position of 5 meters high is defined as position A;

b. 1# gram crane main hook load luffing test: after step a, do the luffing movement from position A to make the luffing movement reach the maximum working angle, and then return to position A;

c. 1# gram crane main hook load rotation test: after step b, rotate 360° clockwise from position A, then slowly rotate 360° counterclockwise to return to position A, then slowly lower and remove the hoisting weight ;

d.1# gram crane main hook load lifting test: lifting weight includes lifting off/self-propelled hatch cover P25, lifting off/self-propelled hatch cover P26, second deck D 5, and 1x lifting block of 13.5t; Use 1# crane to hoist the lift-off/self-propelled hatch cover P25 to FR106, and then superimpose the second deck D6 and 1x lifting blocks on the lift-off/self-propelled hatch cover P25 by the dock crane in turn to make the stowage The center is located at FR106, at this time, the lifting radius of the lift/self-propelled hatch cover P25 is 18m; with the spreader, the main hook is lifted to 5m, and then slowly unscrews outboard to the vertical position of the boom and the ship width, and then slowly changes. Width to the minimum working angle, and the position of the minimum working angle of the main hook is defined as position B, then slowly lower the heavy object 5 meters and then slowly lift 5 meters, at this time, the turning radius is 33 meters;

e. 1# gram crane main hook load luffing test: After step d, slowly do the luffing movement from position B until the minimum radius of the crane body is 9 meters, and then the maximum working radius is 33 meters. return to the initial position B;

f. 1# gram hanger main hook load rotation test: after step e, slowly rotate clockwise about 70° from position B and stop, then slowly rotate counterclockwise 140° to stop, and then rotate clockwise 70° to stop, After the rotation is completed, the boom slowly varies to a turning radius of 18 meters, and slowly turns to the initial position FR106 to stop, slowly lowers and removes the heavy objects;

g.1# gram crane auxiliary hook lifting test: rotate the boom to the wharf, use the auxiliary hook to lift the 50t 1x block, the auxiliary hook working radius is 36.5 meters, first slowly lift the auxiliary hook to 5 meters high, then Slowly lower and remove the hoisting weight; then use the dock crane to lift the 50t 1x block to the position of 3.5 meters from the middle of the FR127 on the ship, and the 1# gram crane lifts the 50t 1x block with the auxiliary hook, and the working radius of the auxiliary hook is 5.1 meters. , and then slowly raise the auxiliary hook to a height of 5 meters, then slowly lower it and remove the hoisting weight;

h. Change the 1# gram crane to 2# gram crane, and use the 2# gram crane to carry out the overload test, and repeat steps (a) to (g) for the test procedure;

(3) Load test:

a. 1# gram crane for one test: the lifting weight includes lifting off/self-propelled hatch cover P25, and the second deck D 5; use 1# gram crane to lift off/self-propelled hatch cover P25 to FR106, Then superimpose the second deck D5 on the lifting/self-propelled hatch cover P25, so that the stowage center is located at FR106, and the lifting radius of 1# gram is 18m;

Hanging the hoist, after the jib rotates outboard to the vertical position between the jib and the ship's width, the position of the jib is defined as position C, and the three movements of lifting, turning and luffing are combined at normal speed, and the lifting height reaches the highest point , the rotation angle is controlled at position C70°, and the luffing requires a minimum working radius of 9 meters and a maximum working radius of 33 meters for 15 minutes. Finally, the lifting weight is removed at the initial position FR106;

b. Second test of 1# gram crane: lifting weight includes lifting off/self-propelled hatch cover P25, lifting off/self-propelled hatch cover P26, second deck D5 and second deck D12; use 1# gram crane to lift Lift off/self-propelled hatch cover P26 to FR106, then superimpose lift off/self-propelled hatch cover P25, second deck D5 and second deck D12 to lift off/self-propelled hatch cover P26 to make the stowage center It is located in FR106, at this time, the lifting radius of 1# gram is 18m; hanging the hoist, the three actions of lifting, turning and luffing are combined at normal speed, the lifting height reaches the highest point, the turning angle is 360°, and the The width is required to achieve a minimum working radius of 9 meters and a maximum working radius of 33 meters for 15 minutes, and finally remove the hoisting weight in FR106;

c.1# gram crane auxiliary hook lifting test: rotate the boom to the wharf, the boom is perpendicular to the length of the ship, and define the position of the boom as position D, use the auxiliary hook to lift the weight, and lift at normal speed The three actions of slewing, slewing and luffing are jointly operated, the lifting height reaches the highest point, the slewing angle is controlled at the position D70°, and the luffing requires a minimum working radius of 9 meters and a maximum working radius of 36.5 meters for 15 minutes. Position FR106 removes the lifting weight;

d. Change the 1# gram crane to 2# gram crane, and use the 2# gram crane to carry out the load test, and repeat steps (a) to (c) in the test procedure;

(4) Brake test:

a. Brake test with main hook load: in step (3), brake at the maximum working radius, maximum lifting and maximum descending speed, brake once for lifting, and brake for 3 times when descending, at the same time, The stop test is carried out at the maximum rotation speed and maximum amplitude;

b. Secondary braking test of main hook load: in step (3), brake at the maximum working radius, maximum lifting and lowering speed, brake once for lifting, and brake for 3 times when descending, at the same time, The stop test is carried out at the maximum rotation speed and maximum amplitude;

c. Change the 1# gram crane to 2# gram crane, and use the 2# gram crane to conduct the brake test, and repeat steps (a) to (b) in the test process;

(5) Safety device test:

a. Emergency stop test: start the pump station, and carry out the emergency button cut-off test at the crane cab, main distribution box, power unit, and passage respectively, to ensure that the emergency cut-off at these positions can make the pump station stop working immediately;

b. Emergency manual operation test: cut off the power supply, use the manual pump to do the main hoisting, auxiliary hoisting, luffing and rotation respectively;

c. Emergency load release test: first test the main hook, start the pump station, lift the hoisting weight for 0.5 meters and then stop, and release the hoisting weight by pressing the emergency release button; then test the auxiliary hook, start the pump station, and hoist the hoist After lifting 0.5 meters, stop, and release the lifting weight by pressing the emergency release button; the lifting weight includes lifting off/self-propelled hatch cover P25, lifting off/self-propelled hatch cover P26, second deck D5, second deck D6 and the second deck D12;

(6) Inspection after the test: Check whether the crane structure is obviously deformed or damaged; the cranes include 1# cranes and 2# cranes.