CN102030088A - Piston type buoyancy adjusting mechanism of underwater lifting platform - Google Patents
Piston type buoyancy adjusting mechanism of underwater lifting platform Download PDFInfo
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- CN102030088A CN102030088A CN2009101745773A CN200910174577A CN102030088A CN 102030088 A CN102030088 A CN 102030088A CN 2009101745773 A CN2009101745773 A CN 2009101745773A CN 200910174577 A CN200910174577 A CN 200910174577A CN 102030088 A CN102030088 A CN 102030088A
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Abstract
The invention relates to a piston type buoyancy adjusting mechanism of an underwater lifting platform. The buoyancy adjusting mechanism comprises thrust springs, pistons, elastic rubber films, connecting parts, cylinders, push rods, screw rods, screw rod driving mechanisms and positioning guide rails, and peripheral equipment comprises an underwater platform and a control system, wherein the buoyancy adjusting mechanism is positioned in the underwater platform, the outer circle of the underwater platform is provided with two symmetrical piston holes which are stepped holes, the hole of each stepped hole communicated with the outer circuit is larger than an inner hole, and elastic rubber films are fixedly connected onto the stepped end surfaces of the stepped holes by the connecting parts; the thrust springs are sheathed on the outer circles of the pistons and are mounted in the inner holes of the piston holes, the two pistons are in contact with each other, and the central axis of the underwater platform is positioned on the contact surface between the pistons; and the screw rod driving mechanisms are positioned below the pistons, the screw rods on the screw rod driving mechanisms are sheathed with the push rods, both sides of each push rod are provided with the positioning guide rails, and the push rods coincide with the central axis of the underwater platform. The piston type buoyancy adjusting mechanism of an underwater lifting platform in the invention is applicable to the marine environmental monitoring field, and has the advantages of high buoyancy adjusting capability and high operational reliability.
Description
Technical field
The present invention relates to a kind of regulating mechanism of buoyancy under water, specially refer to lifting table regulating mechanism of buoyancy under a kind of piston-type underwater, belong to the marine environmental monitoring field.
Background technology
State, inside and outside marine environmental monitoring plateform system in the past, the mode of operation in water generally are that to adopt anchor be mode main platform body are tethered in a certain degree of depth place in the water, and the communication buoy carries on main platform body; At a time discharge the communication buoy according to preset instructions, and floating for a long time at the water surface, constituting a underwater communication chain thus, the underwater environment information with plateform system monitors mails to the external world by this communication link.But this mode of operation has its limitation, and it can only carry out the environmental monitoring of fixed position, and monitoring range is very limited.And; at the long-term floating buoy of the water surface because be subjected to that sea stormy waves, morning and evening tides, sunlight are exposed to the sun for a long time, the influence of the influence of Various Seasonal and day and night temperature variation and factor such as artificial; be easy to be damaged; usually also cooresponding manpower of need and ship are guard or are patrolled, and maintenance cost is considerable.
Patent documentation ZL 200620098049.1 disclosed a kind of oil gas capsule combination type floating moving platform in the recent period, and this invention has overcome the deficiency of above-mentioned existence, had warded off a brand new road in addition for the development of marine environmental monitoring flat-bed thus; Yet, everything can not be perfect, and self equally also exists deficiency this invention, for example: oil gas capsule sectional construction relative complex, defective such as response speed is slow, the slow leakage problem of pipeline inner pressure is difficult to solve fully so far, at these deficiencies, the present invention has been proposed at this point.
Summary of the invention
The present invention seeks to propose lifting table regulating mechanism of buoyancy under a kind of piston-type underwater, can reach regulate that buoyancy capacity is strong, functional reliability is high, speed of response is fast, simple in structure, practical function such as combination is compact, installing/dismounting is easy to operate.
The present invention is achieved in that lifting table regulating mechanism of buoyancy under a kind of piston-type underwater, comprise thrust spring, piston, elasticity glued membrane, attaching parts, cylindrical shell, push rod, screw rod, screw drive mechanism and positioning guide rail, external equipment is underwater platform and control system; Wherein: regulating mechanism of buoyancy is positioned at the inside of underwater platform, have on the cylindrical of underwater platform a pair of more than in twos the symmetry piston hole, piston hole is a stepped hole, the hole that communicates with cylindrical on stepped hole is greater than endoporus, the elasticity glued membrane is fixedly connected on attaching parts on the step end face of stepped hole, guarantees the water tightness of piston hole; Thrust spring is enclosed within respectively that symmetry is installed in the endoporus of piston hole on the cylindrical of two pistons, makes two pistons be in contact condition, and the central axis of underwater platform is on the piston contact surface; Screw drive mechanism is positioned at the piston below, suit push rod on the screw rod in the screw drive mechanism, and positioning guide rail fixedly is equipped with in the push rod both sides, the central axes of push rod and underwater platform.
Mode of operation: control system control screw drive motion of mechanism, under the constraint of positioning guide rail, make screw rod and push rod form relative motion, realization rotatablely moves and straight-line conversion, the displacement that push rod produces, through contacting of push rod and piston, piston moves to piston hole platform outer rim along cylindrical shell, because elasticity glued membrane and piston closed contact, in the process that piston moves, also promote moving of elasticity glued membrane, formed the fully enclosed projection thus, make system bulk increase extraly, improved system's displacement, system is in propradation; When screw drive mechanism reverse drive, make screw rod and push rod relative motion produce rightabout displacement, the displacement of push rod at this moment, vacateed the space for the indentation of piston, and under the synergy of thrust spring and deep-water pressure, make piston get back to reference position, this moment, the volume of additive incrementation disappeared, and system's displacement is got back to starting point, and system is in the decline state; By the utilization of combination repeatedly of aforementioned activities and the control of time of run, the floating elevating function of the system that realized.
(1) utilization principle
This device utilization principle is " a worm drive principle ", is by screwing transmitting movement and power between screw rod 7 and the push rod 6, and the motion that directly rotation motion is in line, and therefrom obtains bigger thrust with less torque.In the adjustability that realizes mutual alignment between part under the effect of this thrust.
For native system, in advance quality in the water of this system is configured as little quality system.Reason is to adopt this configuration, helps control, only needs to use a spot of energy, just can realize the control to working state of system at an easy rate.Based on this configuration, under the situation that mass of system remains unchanged, carry out orderly fore and aft motion along cylindrical shell 5 to the platform outer rim by each piston 2 in the piston type floating control apparatus, cause the change of a certain position of platform volume, thereby cause that system's buoyancy changes, with the on purpose lifting and floating in water of this implementation platform.
System has possessed above-mentioned functions, pass through organic cooperation of control system again, just can finish the task of various ways, for example: a certain moment is imported program control instruction (when emerging to plateform system control center, also can receive via satellite), the System Control Center parameter that can record according to depth transducer and environment induction device then, handle through internal processes, to submerged depth, length of the halt under water, come-up opportunity, water surface length of the halt, and data transmission or the like working link is controlled the intelligent control of the overall process of autonomous lifting of implementation platform and depthkeeping float.
(2) additional measure analysis
Because the realization of the lifting of system, working process such as floating is the requirement by control command, finishes by the orderly variation of additional volume.So determine suitable additional volume value, help the quantitative control and the arrangement of rational structure layout of system.But additional each size of volume is organic related with scantling of structure on every side again, exists mutual restriction.In order to satisfy the requirement that tradition lays instrument, generally speaking, the flat-bed maximum outside diameter is defined, has illustrated that the length of piston can not be oversize.And diameter of piston can be selected in certain scope, but this scope can be very not big yet.This just means that only being difficult to realization by single-piston, floating-caliper brake utilizes additional volume to carry out buoyancy adjustment, so must adopt the mode of many pistons, can realize the buoyancy of system is controlled.
By the graphical simulation analysis of computing machine, clearly reflect the distribution relation of many pistons, and the related proportionate relationship of critical size.For this programme, four piston distributed architectures are infeasible on same circumference, the version that can only adopt two-piston to be symmetrically distributed.And it is 1/2 that piston extension elongation and rod diameter proper ratio are closed, and diameter of piston and underwater platform diameter of the housing proper ratio relation are approximately 1/4.According to using needs, adopt the crossing stack structure distribution, buoyancy can correspondingly increase.
(3) underwater platform lifting flotation process
State prepared the lifting table regulating mechanism of buoyancy is installed in the complete system of lifting table under water of formation in the underwater platform under the piston-type underwater in working order, by laying in the entry of instrument cloth, this platform leans on the continuous sinking of self little negative lift until setting the depth of water, the darkest 400m of the caning be controlled in depth of water (mainly is subject to casing rigidity, itself does not have problems control system), utilize the piston type floating control system to make the platform automatic compensation, and swim in the water to neutral buoyancy.
Beneficial effect: this device is installed in and constitutes the complete system of lifting table under water in the underwater platform; This system is little negative lift configuration, only needs to increase the floating function of lifting that a little additional volume can be realized system; System Control Center is equipped with in inside, and the upper end is provided with connecting interface, can external various dissimilar transmit receive units; Realized underwater platform autonomous lifting in water, voluntarily depthkeeping floating, carry functions such as dissimilar marine environmental monitoring equipment, satellite communication equipment.
Description of drawings
Fig. 1 is a lifting table regulating mechanism of buoyancy scheme drawing under the piston-type underwater;
Fig. 2 is a lifting table regulating mechanism of buoyancy internal piston spatial destribution scheme drawing under the piston-type underwater;
1-thrust spring, 2-piston, 3-elasticity glued membrane, 4-attaching parts, 5-cylindrical shell, 6-push rod, 7-screw rod, 8-screw drive mechanism, 9-underwater platform, 10-positioning guide rail.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Lifting table regulating mechanism of buoyancy under the piston-type underwater comprises thrust spring 1, piston 2, elasticity glued membrane 3, attaching parts 4, cylindrical shell 5, push rod 6, screw rod 7, screw drive mechanism 8 and positioning guide rail 10, and external equipment is underwater platform 9 and control system; Regulating mechanism of buoyancy is positioned at the inside of underwater platform 9, have the piston hole of two pairs of symmetries on the cylindrical of underwater platform 9, piston hole is a stepped hole, and the hole that communicates with cylindrical on stepped hole is greater than endoporus, and elasticity glued membrane 3 is fixedly connected on the step end face of stepped hole by attaching parts 4; Thrust spring 1 is enclosed within respectively on the cylindrical of two pistons 2, and symmetrical being installed in the endoporus of piston hole, and two pistons 2 are in contact condition, and the central axis of underwater platform 9 is on the contact surface of two pistons 2; Screw drive mechanism 8 is positioned at piston 2 belows and links to each other with control system, suit push rod 7 on the screw rod in the screw drive mechanism 8, and positioning guide rail 10 fixedly is equipped with in push rod 7 both sides, the central axes of push rod 7 and underwater platform 9.
When control system provided the come-up instruction by the setting control program, screw drive mechanism 8 started, and under the constraint of positioning guide rail 10, screw rod 7 will rotatablely move and become the straight-line motion of push rod 6.Push rod 6 has obtained enough big thrust in the movement conversion process, and thrust has been passed to each piston 2 respectively, makes piston 2 produce displacement, promotes elasticity glued membrane 3 simultaneously and extends to the platform outer rim.Because this result increases the platform local volume, has produced additional volume, has caused the increase of system's buoyancy.Along with the continuous increase of additional volume, when system's buoyancy during greater than the configuration quality in the system water, platform begins come-up, and until the water surface.After arriving the water surface, by the control command requirement, on the one hand, transmit receive unit transmits information to the external world via satellite, can receive extraneous control command simultaneously.
When this device receives the sinking instruction that control system sends, 8 counter-rotatings of screw drive mechanism, push rod 6 breaks away from piston gradually, and the speed of disengaging and the number that breaks away from piston are by the speed decision of control screw drive mechanism 8.When push rod 6 broke away from piston, piston 2 was pushed into the initial position with it along cylindrical shell 5 gradually under the synergy of thrust spring 1 and hydraulic pressure.This result reduces the additional volume of system gradually, and system's buoyancy also decreases.When system's buoyancy during less than the configuration quality in the system water, underwater platform 9 begins to descend, until the depth of water of command request; and in this degree of depth section by this device with system's automatic compensation to neutral buoyancy; screw drive mechanism 8 shuts down, and locking additional volume at this moment makes system swim in this degree of depth.By the monitoring equipment that carries marine environment information and all types of target information are monitored, handle memory device by system data again and the information that monitors is handled and compressed deposit, carry out the sufficient information transmission for the arrival of next lifting cycle of operations and prepare.If during this period, experience accident, can float immediately, and the relevant information that in the very first time, incident is taken place, with pin mode via satellite transmit receive unit pass to command centre rapidly, for the upper strata provides decision-making foundation.
Claims (3)
1. lifting table regulating mechanism of buoyancy under the piston-type underwater, comprise thrust spring (1), piston (2), elasticity glued membrane (3), attaching parts (4), cylindrical shell (5), push rod (6), screw rod (7), screw drive mechanism (8) and positioning guide rail (10), external equipment is underwater platform (9) and control system; It is characterized in that: regulating mechanism of buoyancy is positioned at the inside of underwater platform (9), have on the cylindrical of underwater platform (9) a pair of more than in twos the symmetry piston hole, piston hole is a stepped hole, the hole that communicates with cylindrical on stepped hole is greater than endoporus, and elasticity glued membrane (3) is fixedly connected on the step end face of stepped hole by attaching parts (4); Thrust spring (1) is enclosed within respectively on the cylindrical of two pistons (2), and symmetrical being installed in the endoporus of piston hole, and two pistons (2) are in contact condition, and the central axis of underwater platform (9) is on the contact surface of two pistons (2); Screw drive mechanism (8) is positioned at piston (2) below and links to each other with control system, suit push rod (7) on the screw rod in the screw drive mechanism (8), positioning guide rail (10) fixedly is equipped with in push rod (7) both sides, the central axes of push rod (7) and underwater platform (9).
2. lifting table regulating mechanism of buoyancy under the piston-type underwater as claimed in claim 1 is characterized in that: when piston (2) is two when above, piston (2) is and intersects the rhythmo structure longitudinal axis and distribute.
3. lifting table regulating mechanism of buoyancy under the piston-type underwater as claimed in claim 1 is characterized in that: piston (2) extension elongation and push rod (7) diameter proportionate relationship are 1/2, and it is 1/4 that piston (2) diameter and underwater platform (9) diameter proportion close.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101745773A CN102030088A (en) | 2009-09-30 | 2009-09-30 | Piston type buoyancy adjusting mechanism of underwater lifting platform |
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| CN2009101745773A CN102030088A (en) | 2009-09-30 | 2009-09-30 | Piston type buoyancy adjusting mechanism of underwater lifting platform |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295064A (en) * | 2011-06-10 | 2011-12-28 | 中海油田服务股份有限公司 | Unlocking-type ballast device for autonomous underwater vehicle |
| CN102975832A (en) * | 2012-12-03 | 2013-03-20 | 中国船舶重工集团公司第七一○研究所 | Self-adjustable variable buoyancy underwater platform |
| CN103448893A (en) * | 2013-09-04 | 2013-12-18 | 中国船舶重工集团公司第七一〇研究所 | Self-regulating and course-changing underwater vertical section measuring platform in set sea area |
| CN103496439A (en) * | 2013-09-26 | 2014-01-08 | 中国船舶重工集团公司第七一〇研究所 | Underwater spring buffering and recovery platform |
| CN104443320A (en) * | 2014-09-28 | 2015-03-25 | 中国船舶重工集团公司第七一〇研究所 | Underwater spring piston type buoyancy compensating device |
| CN109703721A (en) * | 2019-01-03 | 2019-05-03 | 杭州电子科技大学 | A kind of underwater elevating water environmental detection set |
| CN110316343A (en) * | 2019-07-19 | 2019-10-11 | 中国地质科学院 | A kind of buoyancy regulating device |
| CN113525641A (en) * | 2021-07-15 | 2021-10-22 | 哈尔滨工程大学 | Emergency suspension device for seabed sonar robot |
| CN114234933A (en) * | 2021-12-13 | 2022-03-25 | 中国科学院海洋研究所 | Marine element fixed-point vertical profile monitoring device and method based on small ship |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295064A (en) * | 2011-06-10 | 2011-12-28 | 中海油田服务股份有限公司 | Unlocking-type ballast device for autonomous underwater vehicle |
| CN102975832A (en) * | 2012-12-03 | 2013-03-20 | 中国船舶重工集团公司第七一○研究所 | Self-adjustable variable buoyancy underwater platform |
| CN102975832B (en) * | 2012-12-03 | 2015-03-18 | 中国船舶重工集团公司第七一○研究所 | Self-adjustable variable buoyancy underwater platform |
| CN103448893A (en) * | 2013-09-04 | 2013-12-18 | 中国船舶重工集团公司第七一〇研究所 | Self-regulating and course-changing underwater vertical section measuring platform in set sea area |
| CN103448893B (en) * | 2013-09-04 | 2016-01-20 | 中国船舶重工集团公司第七一〇研究所 | In setting marine site, self-regulation becomes the underwater vertical profile survey platform in course |
| CN103496439B (en) * | 2013-09-26 | 2015-11-25 | 中国船舶重工集团公司第七一〇研究所 | One under water spring buffer reclaims platform |
| CN103496439A (en) * | 2013-09-26 | 2014-01-08 | 中国船舶重工集团公司第七一〇研究所 | Underwater spring buffering and recovery platform |
| CN104443320A (en) * | 2014-09-28 | 2015-03-25 | 中国船舶重工集团公司第七一〇研究所 | Underwater spring piston type buoyancy compensating device |
| CN109703721A (en) * | 2019-01-03 | 2019-05-03 | 杭州电子科技大学 | A kind of underwater elevating water environmental detection set |
| CN110316343A (en) * | 2019-07-19 | 2019-10-11 | 中国地质科学院 | A kind of buoyancy regulating device |
| CN110316343B (en) * | 2019-07-19 | 2024-04-30 | 中国地质科学院 | Buoyancy adjusting device |
| CN113525641A (en) * | 2021-07-15 | 2021-10-22 | 哈尔滨工程大学 | Emergency suspension device for seabed sonar robot |
| CN113525641B (en) * | 2021-07-15 | 2022-03-08 | 哈尔滨工程大学 | Emergency suspension device for seabed sonar robot |
| CN114234933A (en) * | 2021-12-13 | 2022-03-25 | 中国科学院海洋研究所 | Marine element fixed-point vertical profile monitoring device and method based on small ship |
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Application publication date: 20110427 |