CN100561163C - The ocean floating platform simulator of frequency and adjustable angle - Google Patents

The ocean floating platform simulator of frequency and adjustable angle Download PDF

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Publication number
CN100561163C
CN100561163C CNB2007101707607A CN200710170760A CN100561163C CN 100561163 C CN100561163 C CN 100561163C CN B2007101707607 A CNB2007101707607 A CN B2007101707607A CN 200710170760 A CN200710170760 A CN 200710170760A CN 100561163 C CN100561163 C CN 100561163C
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China
Prior art keywords
platform
reducing motor
toggle
frequency
anchor clamps
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Expired - Fee Related
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CNB2007101707607A
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Chinese (zh)
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CN101201291A (en
Inventor
巨永林
顾妍
杨康俊
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Publication of CN100561163C publication Critical patent/CN100561163C/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of frequency, the ocean floating platform simulator of adjustable angle, comprise: platform, the A type supports, anchor clamps-axle composite set, toggle, reducing motor, range controlling mechanism, AC frequency conversion speed regulator, base plate, platform is a quadrilateral, wherein an A type support is respectively established in the centre of two opposite side, anchor clamps-axle composite set connects platform and the A type supports, platform is the wherein middle on one side connecting crank linkage assembly on both sides in addition, toggle is installed on the reducing motor, connect an AC frequency conversion speed regulator before the reducing motor, the A type supports, reducing motor and AC frequency conversion speed regulator all are fixed on the base plate, the range controlling mechanism that welding one cover is made up of two rotatable travel switches on the base plate, the position of range controlling mechanism connects the opposition side of reducing motor at toggle.The present invention drives platform mechanically and swings and replace the pond analogy method, and the pendulum angle of this platform, frequency adjustable, and regulative mode is simple, rapidly.

Description

The ocean floating platform simulator of frequency and adjustable angle
Technical field
The present invention relates to a kind of device of field of ocean engineering, specifically is the ocean floating platform simulator of a kind of frequency and adjustable angle.
Background technology
Ocean platform is the infrastructure of marine resources development, and along with the ocean resources exploration develops to darker marine site, floating ocean platform becomes the new model of marine development of resources.The marine floating type platform adopts the mode of single-point turret mooring to be fixed on the sea bed usually, the difference of it and fixed offshore platform maximum is exactly to be kept in motion always, platform is subjected to the influence of marine environment and presents complexity, multivariant swing, and the characteristics of moving under its duty are the slow-speed of revolution, by a small margin.Therefore, research to floating ocean platform all will be carried out under the prerequisite of platform motion, the experiment of research floating platform at present all is selected in the artificial pond motion state by equipment simulating ocean platforms such as wave making machines, though this method can comparatively approaching simulating actual conditions, but site requirements height, equipment are numerous, and characteristics such as investment height have brought very big obstruction for the floating ocean platform researcher; And it almost is impossible will simulating marine environment fully, marine wind direction, wind speed, wave height, ocean current to or the like complicated factors caused the motion of platform, tank experiments also can only comparatively simply be simulated indivedual several environments conditions.
The ocean platform technical field press for a kind of simply, directly, mode analog platform motion cheaply, adopting the motion of mechanical movement means simulation ocean platform is a good settling mode.The development of plant equipment and control technology makes that also mechanical movement means can the various forms of motion of comparatively convenient effective simulation.Variable-frequency control technique is fast-developing under the promotion of computing machine science and technology and Theory of Automatic Control etc., and the converter technique of AC motor is also day by day ripe.The rotating speed of reducing motor is directly regulated by the panel input of AC frequency conversion speed regulator, and frequency-tuning range is big, and the precision height is simple to operate, the rotating speed (as 1440 rev/mins) of common electric machine can be reduced to very low scope (as ocean platform 0-20 rev/min).
Find through literature search, proposed a kind of " environmental experimental platform for mechanical vibration with three freedom degrees " among the Chinese patent CN1614376A, can realize that Three Degree Of Freedom vibrates arbitrarily prior art.But this patent needs three driven by servomotor, and is applicable to that small-scale test is mainly used in electronic product, element carries out anti-shake intensity and stability test, is unsuitable for simulating this large-scale telecontrol equipment of ocean platform.Find also in the retrieval that Chinese patent CN2518096Y has proposed a kind of " energy-saving vibration platform ", this patent adopts the eccentric wheel elbow-bar mechanism to promote platform, can satisfy the requirement of high load capacity, little amplitude.It promotes toggle link by two cover eccentric wheels and connecting rod and drives platform again, platform supports by the frame of platform size, guiding pin etc. to be formed, the structure that driving and platform support is too complicated, and this patent can be handling low to the platform angle adjusting, can not realize the varied angle vibration rapidly.
Summary of the invention
Purpose of the present invention is exactly at floating ocean platform experimental provision complexity, invests big shortcoming, the ocean floating platform simulator of a kind of frequency and adjustable angle is proposed, make it all environmental factors be simplified the periodic wobble that synthesizes floating platform, driving platform mechanically swings and replaces the pond analogy method, and the pendulum angle of this platform, frequency adjustable, regulative mode is simple, rapid.
The present invention is achieved by the following technical solutions, the present invention includes: platform, the support of A type, anchor clamps-axle composite set, toggle, reducing motor, range controlling mechanism, AC frequency conversion speed regulator and base plate.Platform is a quadrilateral, and wherein the mid point of two opposite side is respectively established an A type and supported anchor clamps-axle composite set connection platform and the support of A type.Platform is centre position, the wherein one side connecting crank linkage assembly on both sides in addition, and toggle is installed in and drives platform on the reducing motor, connects an AC frequency conversion speed regulator before the reducing motor.The support of A type, reducing motor and AC frequency conversion speed regulator all are fixed on the base plate, and base plate is fixed in ground with the footing setscrew, make whole apparatus integration, and topple over when avoiding the platform pendulum angle excessive.The range controlling mechanism that welding one cover is made up of two rotatable travel switches on the base plate, the position of range controlling mechanism connects the opposition side of reducing motor at toggle.
Described anchor clamps-axle composite set is welded by anchor clamps and axle.Anchor clamps one side is the groove of a land thickness, is concave shape and clamps platform, fixes with bolt and platform.Anchor clamps opposite side welding axle, shaft extension is gone into A type support, top.
Described two A types support, and its top is provided with semicircle cutting ferrule, between semicircle cutting ferrule and two A types support rolling bearing are installed.The shaft extension of anchor clamps-axle composite set is gone in the rolling bearing.
Welding one plectrum is used to trigger range controlling mechanism on the described toggle bearing cap.
Described platform, welding two auricles in one end centre position pass a bolt between two auricles, and the connecting rod of toggle is connected on this bolt, the crank of toggle then is installed on the reducing motor, drives platform and rotates around the straight line that two A types support the place.
Be welded with riser on the described base plate, riser is connected two long shaped plates by bolt with packing ring, and two long shaped plates can rotate around bolt, to adjust the position of clashing into plectrum.Two long shaped plates are fixed by boring and riser respectively, and the pilot hole that is bored according to the long shaped plate rotary motion trace is arranged on riser accordingly.
In the described range controlling mechanism, be provided with the rotatable next corresponding different degree in crank angle requirement of travel switch of two roller wheel handle formulas.Two roller wheel handle formula travel switches are installed in respectively on two long shaped plates, clash into the roller of one of them travel switch when plectrum, trigger circuit, the reducing motor counter-rotating makes crank change the direction rotation, move to another travel switch place, trigger roller, reducing motor just changes, and crank changes direction of motion once more.Whole Strok mechanism realizes that crank rotates in certain angle, and can change the angular range that travel switch position change crank rotates.
The principle of work of apparatus of the present invention is: toggle drives platform and does reciprocally swinging, supports as the platform pivot center with both sides A type.On this mechanism basis, connecting AC frequency conversion speed regulator before the reducing motor is reduced in the scope of ocean platform slosh frequency the reducing motor rotating speed, only need to regulate the AC frequency conversion speed regulator output frequency and change the reducing motor rotating speed, crank and connecting rod rotating speed promptly change, thereby regulate platform velocity of rotation, frequency.The pendulum angle of the direct corresponding platform of crank rotational angle stroke, the crank platform pendulum angle maximum that rotates a circle, reduce the crank rotation angle range then the amplitude of fluctuation of platform also reduce, promptly pivot angle reduces.Therefore as long as regulate the crank angle amplitude with regard to the adjustable platform amplitude of oscillation, different angles in the rotating distance of crank are installed the travel switch of lower limit, travel switch is connected in the reducing motor positive and negative rotation circuit, then reducing motor counter-rotating of the upper limit position switch of certain angle in crank rotates its stroke of bump, the crank counter-rotating, clash into the lower position switch of symmetric arrangement again, reducing motor just changes, crank also changes former rotation direction, like this, crank moves all the time between the bound bit switch, thereby as long as adjust the position of bound bit switch, with regard to may command crank rotational angle range, the pendulum angle of platform is just corresponding adjusted.
The present invention gives reducing motor according to the voltage that needs are set AC frequency conversion speed regulator output certain frequency, and reducing motor inside is exported lower rotating speed and given crank after gear reduction, and the toggle slow-speed of revolution drives platform.The crank bump is installed in the bound bit switch of certain angle in its rotational travel, be controlled between the bound bit switch and back and forth rotate, thereby platform is swung in the angle of correspondence.
That the characteristics that the present invention is directed to the big load of ocean floating platform, the slow-speed of revolution, the little amplitude of oscillation design is one simple in structure, equipment is few, be suitable for the ocean platform analogue means of top load.Device only needs a reducing motor to drive, but AC frequency conversion speed regulator, travel switch just assistance platform realize the simulation requirement of rotational frequency, angle, compare the quantity that existing patented technology the present invention has reduced drive link and motor.This device just can reach the different loads requirement by the size that increases crank, connecting rod and web member.The A type that can bear big load supports and the gear train of toggle is simple, efficient is high, and for example the connecting rod of the crank of the reducing motor of a 2kw, 150*30*15,300*30*15 can satisfy the load of 400kg.Biggest advantage of the present invention is that adjusting platform rotational frequency and angle adopt electronic control means to replace mechanical means, AC frequency conversion speed regulator and travel switch be easy to operate, control accurately, regulate accurately, to come adjusting angle, wheel box to regulate the method for rotating speed easier, accurate by regulating driving member length to compare mechanical means.In addition, it is spacing to it that the present invention's design any angle in throw of crank is installed rotatable travel switch, the scale of the required adjusting position of different angles can be in switch over travel, marked, its pendulum angle can be adjusted easy, fast in the ocean platform simulated experiment.
Description of drawings
Fig. 1 is the front view of apparatus of the present invention
Fig. 2 is the right pseudosection of apparatus of the present invention
Fig. 3 is anchor clamps of the present invention-axle composite set synoptic diagram
Fig. 4 is the connection diagram of platform of the present invention and the support of A type
Fig. 5 is a cutting ferrule synoptic diagram of the present invention
Fig. 6 is the travel switch of the present invention front view spacing to crank
Fig. 7 is the travel switch of the present invention side view spacing to crank
Fig. 8 is travel switch control reducing motor positive and negative rotation circuit figure in the patent of the present invention
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Be that present embodiment comprises platform 1, two A types support 2 and 3, anchor clamps-axle composite set 4, toggle 5, reducing motor 6, range controlling mechanism 8, AC frequency conversion speed regulator 9 and base plate 7 as shown in Figure 1 and Figure 2.Platform 1 is a quadrilateral, wherein respectively establishes an A type support 2,3 in the middle of two opposite side, and anchor clamps-axle composite set 4 connects platforms 1 and two A types support 2,3.Platform 1 is the wherein middle on one side connecting crank linkage assembly 5 on both sides in addition, and toggle 5 is installed in and drives platform 1 on the reducing motor 6, connects an AC frequency conversion speed regulator 9 before the reducing motor 6.Two A types support 2 and 3, reducing motor 6 and AC frequency conversion speed regulator 9 all are fixed on the base plate 7, the range controlling mechanism 8 that welding one cover is made up of two rotatable travel switches on the base plate 7, the position of range controlling mechanism 8 connect the opposition side of reducing motor 6 at toggle 5.
As shown in Figure 3, Figure 4, anchor clamps-axle composite set 4 is welded by anchor clamps 12 and axle 13.Anchor clamps 12 1 sides are the groove of a land thickness, are concave shape and clamp platform 1, and are fixing with bolt and platform 1.Anchor clamps 12 opposite sides welding axle 13, axle 13 stretches into two A types and supports 2,3 tops.
Described two A types support 2,3, and its top is provided with semicircle cutting ferrule 15, and semicircle cutting ferrule 15 and two A types support 2,3 rolling bearing 14 is installed.The axle 13 of anchor clamps-axle composite set 4 stretches in the rolling bearing 14.
Described platform 1, one end mid point is installed two auricles 10, and bolt 11 passes 10 of two auricles, and the connecting rod of toggle 5 is connected on the bolt 11, the crank of toggle 5 then is installed on the reducing motor 6, drives platform and rotates around the straight line that two A types support 2,3 places.
Welding plectrum 16 on the bearing cap of described toggle 5, plectrum 16 rotates in the same way and with crank with the crank of toggle 5, and impact stroke switch is realized counter-rotating.
Before described AC frequency conversion speed regulator 9 was installed in reducing motor 6, to regulate reducing motor 6 rotating speed implementation platforms 1 hunting frequency adjustable thereby can change electric power output voltage and frequency arbitrarily.
Described base plate 7 usefulness footing setscrews are fixed in ground, make whole apparatus integration, and topple over when avoiding platform 1 pendulum angle excessive.
Be illustrated in figure 5 as semicircle cutting ferrule synoptic diagram, cutting ferrule 15 bipods are screwed in two A types and support on 2,3.
As Fig. 6, shown in Figure 7, be welded with riser 23 on the described base plate 7, by bolt 24 and packing ring two long shaped plates, 19,20, two long shaped plates 19,20 are installed on the riser 23 and can be rotated, to adjust the position that bump takes place with plectrum 16 around bolt 24.Two long shaped plates 19,20 are fixing by pilot hole 21,22 and riser 23 respectively, and the pilot hole that is bored according to the long shaped plate rotary motion trace is arranged on riser 23 accordingly.
Described two long shaped plates 19,20, the top of the afterbody of one of them long shaped plate 19 and another long shaped plate 20 have one section overlapping, the lap center drilling promptly is used to pass bolt 24, the axis of this bolt 24 should be consistent with reducing motor 6 shaft centre lines.
In the described range controlling mechanism 8, be provided with the rotatable next corresponding different degree in crank angle requirement of travel switch of two roller wheel handle formulas.Two roller wheel handle formula travel switches 17 and 18 are installed in respectively on two long shaped plates 19,20, roller when plectrum 16 one of them travel switch of bump, trigger circuit, reducing motor 6 counter-rotatings make crank change the direction rotation, move to another travel switch place, trigger roller, reducing motor just changes, and crank changes direction of motion once more.Whole Strok mechanism 8 realizes that crank rotates in certain angle, and can change the angular range that travel switch position change crank rotates.
As shown in Figure 8, be travel switch control reducing motor positive and negative rotation circuit figure.ST1, ST2 are two travel switches of range controlling mechanism 8, are connected in reducing motor 6 positive and negative rotation circuits.Press lower stroke switch ST2, the KM1 coil electricity, KM1 main contacts closure, the self-locking of KM1 auxiliary contact, reducing motor 6 is just changeing, and toggle 5 is just changeing, and drives the platform counter-clockwise swing; When plectrum 16 is just going to upper limit travel switch position along with the crank of toggle 5, trigger upper limit travel switch ST1, the KM1 coil losing electricity, by interlocking, electric interlock, the KM2 coil electricity, KM2 main contacts closure, the self-locking of KM2 auxiliary contact, circuit for reversing is connected, reducing motor 6 counter-rotatings, toggle 5 counter-rotatings drive platform 1 and swing clockwise.Toggle 5 is inverted to the position of lower limit travel switch, trigger lower limit travel switch ST2, the KM2 coil losing electricity is by interlocking, electric interlock, the KM1 coil electricity, KM1 main contacts closure, the self-locking of KM1 auxiliary contact, prograde circuit is connected, reducing motor 6 is just changeing, toggle 5 is just changeing, and platform 1 also changes swaying direction accordingly, becomes counter-clockwise swing.So circulation, the crank of toggle 5 back and forth rotates between the upper and lower spacing travel switch of range controlling mechanism 8 all the time, and platform is reciprocally swinging in certain angle.
The present embodiment biggest advantage just is the use of travel switch and AC frequency conversion speed regulator, and easy implementation platform can rotate according to the pivot angle and the speed of any adjusting.About China marine site annual about 6s period of wave, the slosh frequency of corresponding platform is on 10 right sides of turning left, so low rotating speed adopts motor-driven words must cooperate the speed reduction unit of high speed ratio and AC frequency conversion speed regulator to realize, the present invention adopts the reductor of 90: 1 speed ratios to cooperate the frequency converter of 2-200hz can reach the stabilized (steady-state) speed range of adjustment that 1-20 changes.The limit wave height of the common safety work of ocean floating platform is 6m, and platform generally has 300m long, and 50m is wide, according to both direction respectively computing platform be no more than 3 degree at the angle of oscillation of length direction, the angle of oscillation of Width is no more than 15 degree.It is the size that benchmark is determined toggle that apparatus of the present invention are rotated 15 degree with platform, but the throw of crank angle of the different rotational angle correspondences of computing platform after the rotating distance scope of crank is determined, with travel switch be installed in the throw of crank can the implementation platform angle in the adjustable purpose of 0-15 degree.
Second characteristic of present embodiment are to adopt two long shaped plates and riser to cooperate the stroke that forms to open rotary positioning apparatus, have solved crank and have changed the rotational angle problem of dismounting travel switch again.Travel switch is designed to rotary type, and its rotation axis and crank rotation axis conllinear.When requiring to change the platform rotational angle, only need come the rotating distance switch according to the position of corresponding crank extreme angles, reinstall after need not to remove.
The 3rd characteristics of present embodiment are to adopt plectrum to replace the direct impact stroke switch of crank, have solved crank and have been positioned at the problem that the reducing motor side is difficult to trigger travel switch.And, adopt the indirect trigger switch of plectrum to improve the device security, expanded the fitting limit of range controlling mechanism.

Claims (7)

1, the ocean floating platform simulator of a kind of frequency and adjustable angle, comprise: platform, the A type supports, anchor clamps-axle composite set, toggle, reducing motor, it is characterized in that, also comprise range controlling mechanism, AC frequency conversion speed regulator and base plate, platform is a quadrilateral, wherein respectively establish an A type support in the middle of two opposite side, anchor clamps-axle composite set connects platform and the A type supports, platform is the wherein middle on one side connecting crank linkage assembly on both sides in addition, toggle is installed on the reducing motor, connect an AC frequency conversion speed regulator before the reducing motor, the A type supports, reducing motor and AC frequency conversion speed regulator all are fixed on the base plate, the range controlling mechanism that welding one cover is made up of two rotatable travel switches on the base plate, the position of range controlling mechanism connects the opposition side of reducing motor at toggle, described two rotatable travel switches are the roller wheel handle formula, be installed in respectively on two long shaped plates, long shaped plate is installed in one and is welded on the riser of base plate, be welded with a plectrum on the described toggle bearing cap and rotate, be used for impact stroke switch and trigger range controlling mechanism with crank.
2, the ocean floating platform simulator of frequency according to claim 1 and adjustable angle, it is characterized in that, described anchor clamps-axle composite set is welded by anchor clamps and axle, anchor clamps one side is the groove of a land thickness, be concave shape and clamp platform, fix with bolt and platform, anchor clamps opposite side welding axle, shaft extension is gone into A type support, top.
3, the ocean floating platform simulator of frequency according to claim 1 and 2 and adjustable angle, it is characterized in that, described two A types support, its top is provided with semicircle cutting ferrule, between semicircle cutting ferrule and two A types support rolling bearing is installed, the shaft extension of anchor clamps-axle composite set is gone in the rolling bearing.
4, the ocean floating platform simulator of frequency according to claim 1 and adjustable angle, it is characterized in that, described platform, one end mid point is installed two auricles, pass a bolt between two auricles, the connecting rod of toggle is connected on this bolt, and the crank of toggle then is installed on the reducing motor, drives platform and rotates around the straight line that two A types support the place.
5, the ocean floating platform simulator of frequency according to claim 1 and adjustable angle, it is characterized in that, weld riser on the described base plate, by bolt and packing ring two long shaped plates are installed, fixedly mount two rotatable travel switches on two long shaped plates respectively, described two long shaped plates and on travel switch can rotate around bolt, to adjust the position with the plectrum bump, two long shaped plates are fixed by boring and riser respectively The pilot hole that is bored according to the long shaped plate rotary motion trace is arranged on riser accordingly.
6, the ocean floating platform simulator of frequency according to claim 5 and adjustable angle, it is characterized in that, described two long shaped plates, wherein the top of the afterbody of a long shaped plate and another piece long shaped plate have one section overlapping, the lap center drilling promptly is used to pass bolt, and the axis of this bolt is consistent with the reducing motor shaft centre line.
7, the ocean floating platform simulator of frequency and adjustable angle according to claim 1 or 5 is characterized in that described base plate is fixed in ground with the footing setscrew.
CNB2007101707607A 2007-11-22 2007-11-22 The ocean floating platform simulator of frequency and adjustable angle Expired - Fee Related CN100561163C (en)

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CNB2007101707607A CN100561163C (en) 2007-11-22 2007-11-22 The ocean floating platform simulator of frequency and adjustable angle

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Application Number Priority Date Filing Date Title
CNB2007101707607A CN100561163C (en) 2007-11-22 2007-11-22 The ocean floating platform simulator of frequency and adjustable angle

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