CN101487755B - Test system and method for drill platform mass centre - Google Patents

Abstract

The invention discloses a gravity center testing system for a drilling platform and a testing method thereof. The testing system comprises a power supply source, a plurality of parallel and autonomous working hydraulic drive mechanisms for synchronously jacking and lowering a drilling platform to be tested in parallel, a plurality of pressure sensors for respectively detecting bearing pressures of a plurality of hydraulic drive mechanisms in real time, displacement sensors for respectively detecting jacking displacement or lowering displacement of a plurality of hydraulic drive mechanisms in real time, and a control system for analyzing to obtain barycentric coordinates of the drilling platform. Signals detected by the pressure sensors and the displacement sensors are sent to the control system via an A/D conversion circuit, and the control system controls dynamic mechanisms of a plurality of hydraulic drive mechanisms. The testing method comprises steps of preparing, zero setting, synchronously jacking and weighing, as well as synchronously lowering and testing the gravity center. The gravity center testing system has reasonable structure and simple testing method, is convenient to be realized with high test precision, and can effectively solve the problems in drilling platform gravity center testing.

Description

Drill platform mass centre test macro and method of testing thereof

Technical field

The present invention relates to the earth gravity field studying technological domain, especially relate to a kind of drill platform mass centre test macro and method of testing thereof.

Background technology

In field of ocean engineering, the center of gravity measurement of drilling platform is a common construction problem, and when carrying out operation especially aboard ship, the center of gravity that accurately finds drilling platform is concerning this project construction key of success problem place.Not occurring a kind of simple and effective drilling platform test macro and method of testing thereof at present yet, all is the center of gravity of seeking drilling platform by manually going for usually mostly.But; drill platform mass centre is not only time-consuming, the effort operational degree is low but manually look for, and precision is very poor, and the center of gravity and the actual center gravity that occur finding out through regular meeting differ bigger situation; bring very big inconvenience finally for follow-up construction, even be absorbed in the predicament that is difficult to normal construction.

Summary of the invention

Technical matters to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of drill platform mass centre test macro and method of testing thereof are provided, its barycenter Test System is rational in infrastructure, method of testing simple, it is convenient to realize and measuring accuracy is high, can effectively solve the center of gravity test problem of drilling platform.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of drill platform mass centre test macro, it is characterized in that: comprise power supply, tested drilling platform is carried out a plurality of hydraulic drive mechanisms that walk abreast and work alone of synchronous parallel jacking and decline, a plurality of pressure transducers that pressure that a plurality of hydraulic drive mechanism bears is detected in real time respectively, the displacement transducer that the lifting or the decline displacement of described a plurality of hydraulic drive mechanisms detected in real time respectively, and handle the control system that draws tested drill platform mass centre coordinate according to the detection data corresponding analysis of pressure transducer and displacement transducer; Described pressure transducer and displacement transducer institute detection signal are sent to control system behind the A/D change-over circuit; Described control system is controlled the actuating unit of described a plurality of hydraulic drive mechanisms.

Described hydraulic pressure hydraulic drive mechanism is the hydraulic servo lifting jack.

Described hydraulic drive mechanism is made up of a plurality of hydraulic servo lifting jack that walk abreast and work alone, and forms the shared oil sources of a plurality of hydraulic servo lifting jack of described hydraulic drive mechanism.

Described control system is the PLC Programmable Logic Controller.

The charge oil pressure of described oil sources is provided by the radial pump that is installed on the oil feed line, and described radial pump is driven by threephase asynchronous; Described threephase asynchronous is controlled by control system, and threephase asynchronous and variable-frequence governor join;

Be equipped with one between the in-line of described a plurality of hydraulic servo lifting jack and the return line and be used to change the solenoid directional control valve that fluid flows to, and an equalizing valve all is installed between the in-line of described hydraulic servo lifting jack and the return line;

Described displacement transducer is the grating chi that is installed on the described hydraulic servo lifting jack; The sensor of pressure transducer for the oil liquid pressure in the described hydraulic servo lifting jack oil feed line is detected in real time.

The quantity of described hydraulic drive mechanism is 4, and described hydraulic drive mechanism is parallel by 2 and hydraulic servo lifting jack that work alone is formed.

Also comprise the tensimeter that the charge oil pressure of described oil sources is indicated.

A kind of method of testing of drill platform mass centre test macro may further comprise the steps:

Step 1, preparation: corresponding respectively the moving of described a plurality of hydraulic drive mechanisms put to corresponding jacking position, the promptly heavily loaded below of tested drilling platform; Simultaneously on surface level, set up two-dimentional rectangular coordinate system, measure the two dimensional surface coordinate (X of described a plurality of hydraulic drive mechanisms respectively _i, Y _i), and measurement result is delivered to control system, wherein i=1,2,3...n, n is the quantity of described a plurality of hydraulic drive mechanisms;

Step 2, zero setting:

At first, be that described a plurality of hydraulic drive mechanism is all set a zero setting tonnage T by control system ₀, the zero setting tonnage T of each hydraulic drive mechanism wherein ₀Need bear the 10%-30% of heavily loaded weight for this hydraulic drive mechanism;

Control described a plurality of hydraulic drive mechanism by control system again and carry out jacking respectively, the pressure that is born separately until described a plurality of hydraulic drive mechanisms all reaches the zero setting tonnage T that correspondence sets ₀, this moment, described a plurality of hydraulic drive mechanisms top all contacted with described tested drilling platform bottom; In the jacking process, pressure transducer feeds back to control system with its detection signal in real time, and control system is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to pressure transducer institute detection signal;

Step 3, synchronous parallel jacking and weigh:

At first, set a jacking displacement L by control system ₀Control described a plurality of hydraulic drive mechanism by control system again and synchronously parallel jacking is carried out in described heavy duty, reach the jacking displacement L that sets until the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms ₀In the synchronous parallel jacking process, described displacement transducer feeds back to control system with its detection signal in real time, and control system is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to described displacement transducer institute detection signal;

When the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms reaches the jacking displacement L that sets ₀The time, control system is controlled described a plurality of hydraulic drive mechanism and is stopped jacking automatically and weigh, and promptly writes down the force value T that pressure transducer detected that is installed on described a plurality of hydraulic drive mechanism by control system this moment _i

Step 4, the check weighing heart:

By control system according to formula: $\left\{\begin{array}{c}X=\frac{\mathrm{\Σ}(X_i\×T_i)}{\mathrm{\Σ}{T}_i}\\ Y=\frac{\mathrm{\Σ}(Y_i\×T_i)}{\mathrm{\Σ}{T}_i}\end{array}\right.,$ Calculate described tested drilling platform promptly the two dimensional surface coordinate of heavy duty (X, Y).

During foundation described in step 1 two dimension rectangular coordinate system, be true origin with any point on the plane, place, described heavy duty bottom.

The present invention compared with prior art has the following advantages, 1, rational in infrastructure, the method for testing of this barycenter Test System is simple, realize convenient and measuring accuracy high.2, realize intelligent fully, human factor is seldom: in whole center of gravity test process, combine by control system and hydraulic drive mechanism and to weigh and calculate center of gravity, be to be different from the key of manually looking for drill platform mass centre, thereby the present invention has the advantage that not disturbed by extraneous factor such as artificial, carry out work according to the instruction of computing machine fully, in addition, having a plurality of hydraulic drive mechanisms, to carry out jacking and rising and decline rate synchronously adjustable, tested drill platform mass centre account form is advantage flexibly, finally make drill platform mass centre test result calculations precision height, processing speed is fast, is an advanced person's of the present drilling platform check weighing heart innovation and creation.In sum, barycenter Test System of the present invention is rational in infrastructure, method of testing simple, it is convenient to realize and measuring accuracy is high, can effectively solve the center of gravity test problem of drilling platform.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Description of drawings

Fig. 1 is the circuit theory diagrams of the used drill platform mass centre test macro of the present invention.

Fig. 2 is the structural representation of the used hydraulic drive mechanism of the present invention.

Description of reference numerals:

The 1-pressure transducer; 2-grating chi; The 3-control system;

The 4-A/D change-over circuit; 5-1-hydraulic drive mechanism one; 5-11-hydraulic servo lifting jack one;

The very heavy 5-2-hydraulic drive mechanism two of 5-12-hydraulic servo; 5-3-hydraulic drive mechanism three;

Top two;

5-4-hydraulic drive mechanism 6-radial pump; The 7-solenoid directional control valve;

Four;

The 8-tensimeter; The 9-threephase asynchronous; The 10-equalizing valve;

The 11-safety valve; The 12-variable-frequence governor; The 13-operator's console;

The 14-stabilized voltage supply.

Embodiment

As shown in Figure 1, the displacement transducer that the used drilling platform test macro of the present invention comprises power supply, tested drilling platform is carried out a plurality of parallel and hydraulic drive mechanism that works alone of synchronous parallel jacking and decline, a plurality of pressure transducers 1 that respectively pressure that a plurality of hydraulic drive mechanism bears detected in real time, respectively the lifting or the decline displacement of described a plurality of hydraulic drive mechanisms detected in real time, and the control system 3 that draws tested drill platform mass centre coordinate according to the detection data corresponding analysis processing of pressure transducer 1 and displacement transducer.Described pressure transducer 1 and displacement transducer institute detection signal are sent to control system 3 behind A/D change-over circuit 4.The actuating unit of 3 pairs of described a plurality of hydraulic drive mechanisms of described control system is controlled.Described control system 3 is the PLC Programmable Logic Controller, and described power supply is a stabilized voltage supply 14.

In addition, described hydraulic drive mechanism is the hydraulic servo lifting jack; And described hydraulic drive mechanism is made up of a plurality of hydraulic servo lifting jack that walk abreast and work alone, and forms the shared oil sources of a plurality of hydraulic servo lifting jack of described hydraulic drive mechanism.The charge oil pressure of described oil sources is provided by the radial pump 6 that is installed on the oil feed line, and described radial pump 6 is driven by threephase asynchronous 9; Described threephase asynchronous 9 is controlled by control system 3, and threephase asynchronous 9 joins with variable-frequence governor 12.Be equipped with one between the in-line of described a plurality of hydraulic servo lifting jack and the return line and be used to change the solenoid directional control valve 7 that fluid flows to, and an equalizing valve 10 all is installed between the in-line of described hydraulic servo lifting jack and the return line.Described displacement transducer is the grating chi 2 that is installed on the described hydraulic servo lifting jack; The sensor of pressure transducer 1 for the oil liquid pressure in the described hydraulic servo lifting jack oil feed line is detected in real time.

In the present embodiment, the quantity of described hydraulic drive mechanism is 4, and described hydraulic drive mechanism is parallel by 2 and hydraulic servo lifting jack that work alone is formed.That is to say, in the present embodiment, adopt 4 parallel and work alone hydraulic drive mechanisms altogether, specifically is hydraulic drive mechanism one 5-1, hydraulic drive mechanism 5-2, hydraulic drive mechanism three 5-3 and hydraulic drive mechanism four 5-4; And each hydraulic drive mechanism is parallel by two and hydraulic servo lifting jack that work alone is formed, and forms the shared oil sources of two hydraulic servo lifting jack of a hydraulic drive mechanism.To sum up, in the present embodiment, amount to and adopt 4 hydraulic drive mechanisms, promptly 8 hydraulic servo lifting jack carry out the center of gravity test.

Be that example describes with hydraulic drive mechanism one 5-1 only, the assembly of hydraulic drive mechanism 5-2, hydraulic drive mechanism three 5-3 and hydraulic drive mechanism four 5-4 and the annexation of each assembly are all identical with hydraulic drive mechanism one 5-1 with principle of work herein.As shown in Figure 2, described hydraulic drive mechanism one 5-1 is made up of hydraulic servo lifting jack one 5-11 and two hydraulic servo lifting jack of hydraulic servo lifting jack two 5-12, and the shared same oil sources of above-mentioned two hydraulic servo lifting jack.The charge oil pressure of described oil sources is provided by the radial pump 6 that is installed on the oil feed line, described radial pump 6 is driven by threephase asynchronous 9, and threephase asynchronous 9 is controlled by control system 3, and threephase asynchronous 9 joins with variable-frequence governor 12.Be equipped with one between the in-line of described hydraulic servo lifting jack one 5-11 and hydraulic servo lifting jack two 5-12 and the return line and be used to change the solenoid directional control valve 7 that the two fluid flows to, change the fluid flow direction in the hydraulic servo lifting jack by solenoid directional control valve 7, realize the jacking and the decline process of hydraulic servo lifting jack.And between the in-line of described hydraulic servo lifting jack one 5-11 and hydraulic servo lifting jack two 5-12 and the return line equalizing valve 10 is installed all.In addition, between the in-line and return line of described two hydraulic servo lifting jack, and on the oil feed line of each hydraulic servo lifting jack (in-line or return line) safety valve 11 is installed all; Also comprise the tensimeter 8 that the charge oil pressure of described oil sources is indicated simultaneously.In the present embodiment, for hydraulic drive mechanism one 5-1, grating chi 2 quantity that the jacking and the decline displacement of described hydraulic servo lifting jack detected in real time are 2, and the quantity of the pressure transducer 1 that described hydraulic servo pressure that lifting jack bears is detected in real time is 2.

The method of testing of drill platform mass centre test macro of the present invention may further comprise the steps:

Step 1, preparation: corresponding respectively the moving of described a plurality of hydraulic drive mechanisms put to corresponding jacking position, the promptly heavily loaded below of tested drilling platform; Simultaneously on surface level, set up two-dimentional rectangular coordinate system, measure the two dimensional surface coordinate (X of described a plurality of hydraulic drive mechanisms respectively _i, Y _i), and measurement result is delivered to control system 3, wherein i=1,2,3...n, n is the quantity of described a plurality of hydraulic drive mechanisms.In addition, when setting up two-dimentional rectangular coordinate system, can be that any point on the plane, place, described heavy duty bottom is a true origin with tested drilling platform.

In the present embodiment, 8 used hydraulic servo lifting jack are grouped into 4 hydraulic drive mechanisms, corresponding respectively moving put to corresponding jacking position, the promptly heavily loaded below of tested drilling platform, and described tested drilling platform correspondence is provided with the mounting hole that 8 feed flows are pressed servo lifting jack jacking.Generally speaking, 8 hydraulic servo lifting jack correspondences of 4 hydraulic drive mechanisms are placed on 8 angles of described tested drilling platform, when on surface level, setting up two-dimentional rectangular coordinate system, measure the two dimensional surface coordinate (X of 8 hydraulic servo lifting jack forming described 4 hydraulic drive mechanisms respectively _{I '}, Y _{I '}), and measurement result is delivered to control system 3, wherein i '=1,2,3...8.

By that analogy, the situation of forming by a plurality of hydraulic servo lifting jack for described hydraulic drive mechanism, after setting up two-dimentional rectangular coordinate system on the surface level, all should measure the two dimensional surface coordinate (X of the servo lifting jack of all hydraulic of forming described a plurality of hydraulic drive mechanisms respectively _{I '}, Y _{I '}), and measurement result is delivered to control system 3, this moment i '=1,2,3...n ' wherein, n ' is the quantity of the servo lifting jack of described all hydraulic.

Step 2, zero setting:

At first, all set a zero setting tonnage T by control system 3 for described a plurality of hydraulic drive mechanisms ₀, wherein the zero setting tonnage of each hydraulic drive mechanism need be born the 10%-30% of heavily loaded weight for this hydraulic drive mechanism; Carry out jacking respectively by the described a plurality of hydraulic drive mechanisms of control system 3 controls again, the pressure that is born separately until described a plurality of hydraulic drive mechanisms all reaches the zero setting tonnage that correspondence sets, and this moment, described a plurality of hydraulic drive mechanisms top all contacted with described tested drilling platform bottom; In the jacking process, pressure transducer 1 feeds back to control system 3 with its detection signal in real time, and control system 3 is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to 1 detection signal of pressure transducer.Set zero tonnage T ₀The time, specifically the operator's console 13 by control system 3 is provided with.

In the present embodiment,, be that 4 hydraulic drive mechanisms are that 8 hydraulic servo lifting jack are set a zero setting tonnage T respectively by control system 3 according to concrete actual needs and after the corresponding calculating of weighing ₀Afterwards, pass through control threephase asynchronous 9 by control system 3, the cylinder body of 8 hydraulic servo lifting jack of corresponding control carries out jacking respectively, the pressure that is born separately until 8 hydraulic servo lifting jack all reaches the zero setting tonnage that correspondence sets, this moment, 8 hydraulic servo lifting jack tops all contacted with described tested drilling platform bottom, promptly were light contact condition between the two.In the jacking process, pressure transducer 1 feeds back to control system 3 with its detection signal in real time, control system 3 is controlled the threephase asynchronous 9 of 4 hydraulic drive mechanisms according to 1 detection signal of pressure transducer, when 8 hydraulic servo weight that lifting jack bears reach zero tonnage T ₀The time, then control system 3 makes 8 hydraulic servo lifting jack stop jacking automatically by control threephase asynchronous 9.

Step 3, synchronous parallel jacking and weigh:

At first, set a jacking displacement L by control system 3 ₀Synchronously parallel jacking is carried out in described heavy duty by the described a plurality of hydraulic drive mechanisms of control system 3 control again, reached the jacking displacement L that sets until the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms ₀In the synchronous parallel jacking process, described displacement transducer feeds back to control system 3 with its detection signal in real time, and control system 3 is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to 1 detection signal of pressure transducer.Jacking displacement L ₀The time, specifically the operator's console 13 by control system 3 is provided with.

When the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms reaches the jacking displacement L that sets ₀The time, the described a plurality of hydraulic drive mechanisms of control system 3 controls stop jacking automatically weighs, i.e. the force value T that is detected by the pressure transducer of being installed on the described a plurality of hydraulic drive mechanisms of control system 3 records 1 this moment _i

In the present embodiment, be that 4 hydraulic drive mechanisms are that 8 hydraulic servo lifting jack are set a jacking displacement L by control system 3 ₀Again by control system 3 by control threephase asynchronous 9, corresponding 8 hydraulic servo lifting jack carry out parallel jacking to described heavy duty synchronously, reach the jacking displacement L that sets until the synchronization of jacking up displacement of 8 hydraulic servo lifting jack ₀In the synchronous parallel jacking process, grating chi 2 feeds back to control system 3 with its detection signal in real time, and control system 3 is controlled the threephase asynchronous 9 of 4 hydraulic drive mechanisms according to 2 detection signals of grating chi.When the synchronization of jacking up displacement of 8 hydraulic servo lifting jack reaches the jacking displacement L that sets ₀The time, control system 3 is by the threephase asynchronous 9 of 4 hydraulic drive mechanisms of control, make 4 hydraulic drive mechanisms promptly 8 hydraulic servo lifting jack stop jacking automatically and weigh, promptly write down the force value T that pressure transducer 1 that 8 hydraulic servo lifting jack are installed is detected respectively by control system 3 this moment _{I '}, wherein i '=1,2,3...8.

By that analogy, for the situation that described hydraulic drive mechanism is made up of a plurality of hydraulic servo lifting jack, the force value T that should be the servo lifting jack of all hydraulic of forming a plurality of hydraulic drive mechanisms that this moment, control system 3 was write down _{I '}, this moment wherein i '=1,2,3...n ', n ' is the quantity of the servo lifting jack of described all hydraulic.

Step 4, the check weighing heart:

By control system 3 according to formula: $\left\{\begin{array}{c}X=\frac{\mathrm{\Σ}(X_i\×T_i)}{\mathrm{\Σ}{T}_i}\\ Y=\frac{\mathrm{\Σ}(Y_i\×T_i)}{\mathrm{\Σ}{T}_i}\end{array}\right.,$ Calculate described tested drilling platform promptly the two dimensional surface coordinate of heavy duty (X, Y).After testing, 8 hydraulic servo lifting jack can be descended synchronously, until tested drilling platform is returned to original position.

In the present embodiment, by control system 3 according to formula: $\left\{\begin{array}{c}X=\frac{\mathrm{\Σ}(X_{i^{,}}\×T_{i^{,}})}{\mathrm{\Σ}{T}_{i^{,}}}\\ Y=\frac{\mathrm{\Σ}(Y_{i^{,}}\×T_{i^{,}})}{\mathrm{\Σ}{T}_{i^{,}}}\end{array}\right.,$ Calculate described tested drilling platform promptly the two dimensional surface coordinate of heavy duty (X, Y).

By that analogy, for the situation that described hydraulic drive mechanism is made up of a plurality of hydraulic servo lifting jack, i ' in the above-mentioned formula=1,2,3...n ', n ' are the quantity of the servo lifting jack of described all hydraulic.

In the concrete application of the present invention one actual oceanographic engineering, by the metrology and measurement center test authentication of northwest country, test data such as table 1:

Table 1

Jacking displacement (m)	Jacking 10mm	Jacking 20mm	Jacking 30mm	Jacking 40mm	Jacking 50mm
						Tested drill platform mass centre horizontal ordinate x (m)	1.02	1.01	1.01	1.02	1.01
The total coordinate y of tested drill platform mass centre (m)	0.78	0.78	0.78	0.78	0.78
						Tested drilling platform general assembly (TW) (ton)	22.43	22.56	22.47	22.39	22.55

Above-mentioned data declaration, after using the present invention to test the barycentric coordinates of tested drilling platform, loading can not change the barycentric coordinates that tested out, and has verified that further the present invention is in the accuracy of measuring center of gravity.

The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.

Claims (9)

1. drill platform mass centre test macro, it is characterized in that: comprise power supply, tested drilling platform is carried out a plurality of hydraulic drive mechanisms that walk abreast and work alone of synchronous parallel jacking and decline, a plurality of pressure transducers (1) that pressure that a plurality of hydraulic drive mechanism bears is detected in real time respectively, the displacement transducer that the lifting or the decline displacement of described a plurality of hydraulic drive mechanisms detected in real time respectively, and handle the control system (3) that draws tested drill platform mass centre coordinate according to the detection data corresponding analysis of pressure transducer (1) and displacement transducer; Described pressure transducer (1) and displacement transducer institute detection signal are sent to control system (3) behind A/D change-over circuit (4); Described control system (3) is controlled the actuating unit of described a plurality of hydraulic drive mechanisms.

2. according to the described drill platform mass centre test macro of claim 1, it is characterized in that: described hydraulic drive mechanism is the hydraulic servo lifting jack.

3. according to claim 1 or 2 described drill platform mass centre test macros, it is characterized in that: described hydraulic drive mechanism is made up of a plurality of hydraulic servo lifting jack that walk abreast and work alone, and forms the shared oil sources of a plurality of hydraulic servo lifting jack of described hydraulic drive mechanism.

4. according to claim 1 or 2 described drill platform mass centre test macros, it is characterized in that: described control system (3) is the PLC Programmable Logic Controller.

5. according to the described drill platform mass centre test macro of claim 3, it is characterized in that: the charge oil pressure of described oil sources is provided by the radial pump (6) that is installed on the oil feed line, and described radial pump (6) is driven by threephase asynchronous (9); Described threephase asynchronous (9) is controlled by control system (3), and threephase asynchronous (9) joins with variable-frequence governor (12);

Be equipped with one between the in-line of described a plurality of hydraulic servo lifting jack and the return line and be used to change the solenoid directional control valve (7) that fluid flows to, and an equalizing valve (10) all is installed between the in-line of described hydraulic servo lifting jack and the return line;

Described displacement transducer is the grating chi (2) that is installed on the described hydraulic servo lifting jack; The sensor of pressure transducer (1) for the oil liquid pressure in the described hydraulic servo lifting jack oil feed line is detected in real time.

6. according to the described drill platform mass centre test macro of claim 5, it is characterized in that: the quantity of described hydraulic drive mechanism is 4, and described hydraulic drive mechanism is parallel by 2 and hydraulic servo lifting jack that work alone is formed.

7. according to the described drill platform mass centre test macro of claim 5, it is characterized in that: also comprise the tensimeter (8) that the charge oil pressure of described oil sources is indicated.

8. according to the method for testing of the described drill platform mass centre test macro of claim 1, it is characterized in that this method may further comprise the steps:

Step 1, preparation: corresponding respectively the moving of described a plurality of hydraulic drive mechanisms put to corresponding jacking position, tested drilling platform below; Simultaneously on surface level, set up two-dimentional rectangular coordinate system, measure the two dimensional surface coordinate (X of described a plurality of hydraulic drive mechanisms respectively _i, Y _i), and measurement result is delivered to control system (3), wherein i=1,2,3...n, n is the quantity of described a plurality of hydraulic drive mechanisms;

Step 2, zero setting:

At first, all set a zero setting tonnage T by control system (3) for described a plurality of hydraulic drive mechanisms ₀, the zero setting tonnage T of each hydraulic drive mechanism wherein ₀Need bear the 10%-30% of heavily loaded weight for this hydraulic drive mechanism;

Carry out jacking respectively by the described a plurality of hydraulic drive mechanisms of control system (3) control again, the pressure that is born separately until described a plurality of hydraulic drive mechanisms all reaches the zero setting tonnage T that correspondence sets ₀, this moment, described a plurality of hydraulic drive mechanisms top all contacted with described tested drilling platform bottom; In the jacking process, pressure transducer (1) feeds back to its detection signal control system (3) in real time, and control system (3) is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to pressure transducer (1) institute detection signal;

Step 3, synchronous parallel jacking and weigh:

At first, set a jacking displacement L by control system (3) ₀Synchronously parallel jacking is carried out in described heavy duty by the described a plurality of hydraulic drive mechanisms of control system (3) control again, reached the jacking displacement L that sets until the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms ₀In the synchronous parallel jacking process, described displacement transducer feeds back to its detection signal control system (3) in real time, and control system (3) is controlled the actuating unit of described a plurality of hydraulic drive mechanisms according to described displacement transducer institute detection signal;

When the synchronization of jacking up displacement of described a plurality of hydraulic drive mechanisms reaches the jacking displacement L that sets ₀The time, the described a plurality of hydraulic drive mechanisms of control system (3) control stop jacking automatically weighs, i.e. the force value T that is detected by the pressure transducer of being installed on the described a plurality of hydraulic drive mechanisms of control system (3) record (1) this moment _i

Step 4, the check weighing heart:

By control system (3) according to formula:

Calculate described tested drilling platform promptly the two dimensional surface coordinate of heavy duty (X, Y).

9. according to the method for testing of the described drill platform mass centre test macro of claim 8, it is characterized in that: during foundation described in step 1 two dimension rectangular coordinate system, be true origin with any point on the plane, place, described tested drilling platform bottom.

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