CN103061319A - Directly-connected simultaneous system of ship lifts and method for judging stability - Google Patents
Directly-connected simultaneous system of ship lifts and method for judging stability Download PDFInfo
- Publication number
- CN103061319A CN103061319A CN2013100106622A CN201310010662A CN103061319A CN 103061319 A CN103061319 A CN 103061319A CN 2013100106622 A CN2013100106622 A CN 2013100106622A CN 201310010662 A CN201310010662 A CN 201310010662A CN 103061319 A CN103061319 A CN 103061319A
- Authority
- CN
- China
- Prior art keywords
- ship
- reception chamber
- synchro system
- compartment
- railway carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a directly-connected simultaneous system of ship lifts and a method for judging stability. The directly-connected simultaneous system of the ship lifts comprises a plurality of winding drums, a synchronizing shaft and a reversing device. The winding drums are connected by virtue of the synchronizing shaft; the synchronizing shaft is connected with the winding drums by virtue of a non-transmission-clearance coupler; the winding drums form two parallel drum sets after being connected by the synchronizing shaft; and two parallel winding drum sets are connected by the reversing device to form a closed transmission system. The stability is judged according to the following stability judging formula: delta is the initial tilt value of a ship reception chamber; q is the specific value of the previous tilt and the next tilt; and S is the tilt value when the ship reception chamber is converged and stable under the condition that the initial tilt of the ship reception chamber is delta. The S is calculated and is compared with the tilt value of the ship reception chamber to judge whether the simultaneous system rigidity meets requirements or not. According to the directly-connected simultaneous system of the ship lifts, the synchronizing shaft is directly connected with the winding drums by virtue of the coupler to form a closed transmission system, and thus the transmission clearance can be eliminated and the synchronization to the ship reception chamber is direct and reliable. The directly-connected simultaneous system of the ship lifts is characterized by novel structure, simple structure and reliable use.
Description
Technical field
The present invention relates to water conservancy, power industry ship lift technical field, specifically a kind of direct-connected ship lift synchro system stability judging method.
Background technology
Because ship booster supporting compartment is that a strip carries water receptacle, the operating mode that ship reception chamber tilts will inevitably appear in the ship elevator process, and because the flow behavior of water, after occurring tilting, ship reception chamber can produce positive feedback effect, be that ship reception chamber tilts to cause water body load skewness, the inhomogeneous ship reception chamber that further causes again of water body load to tilt, so form a vicious circle that is unfavorable for ship elevator.
Synchro system is the key technology that guarantees the ship booster supporting compartment even running, and will bring into play the function of synchro system, realizes it to the stabilization of ship reception chamber operation, and the synchro system designing technique is very crucial.
At present, general ship lift synchro system is all passed through multiple-speed gearbox, connect the synchro system speed end and form an enclosed Synchronizable drive systems, because the effect of gearbox, such synchro system can't be accomplished the directly steadily effect to ship reception chamber all the time, can only indirectly realize synchronously by complicated electric-control system preset, simultaneously because the discreteness in gearbox gear gap, cause existing and regulate the dead band, the function of synchro system is affected.
Summary of the invention
The present invention is directed to the problem that the speed end synchro system exists, provide a kind of ship reception chamber that makes stable, and novel direct-connected ship lift synchro system and the stability judging method thereof of reliable operation.
The present invention in line with simple in structure, the reliable principle of practical function, has researched and proposed direct-connected ship lift synchro system by labor, research to all types of ship elevator operating modes.
Direct-connected ship lift synchro system of the present invention is made of a plurality of reels, synchronizing shaft, reversing arrangement, connect by synchronizing shaft between reel, synchronizing shaft is again by being connected with reel without the drive gap shaft coupling, reel forms two parallel reel groups after being connected by synchronizing shaft, is connected to form enclosed transmission system by reversing arrangement between two parallel reel groups.
Enclosed transmission system is rectangle or H shape.
The rigidity of synchro system is directly connected to the inclination that can synchro system effectively resist ship reception chamber, and synchro system rigidity is less than normal will to be lost synchro system ship reception chamber is forced stably effect, and the present invention is according to the topple relation of rigidity of synchro system rigidity and ship reception chamber:
Method one: the judgement of stability formula of synchro system:
Be under the effect of the ship reception chamber both ends horizontal discrepancy in elevation " Δ " (see figure 3) in the ship reception chamber initial tilt, the ship lift synchro system will be subject to certain moment of torsion, synchro system torsional deflection can occur under the effect of moment of torsion, cause ship booster supporting compartment " Δ to occur further tilting
1' ", " Δ can further appear in circulation thus
2', Δ
3' ... ", because the stiffness of synchro system has following Geometric Sequence relation, that is:
Δ
1'=q·Δ
Δ
2'=q·Δ
1'
Wherein q tilted and the ratio that again tilts last time, to the ship reception chamber tilting value, had by the Geometric Sequence summation:
S is in the situation that the ship reception chamber initial tilt is " Δ ", ship reception chamber convergence, the tilting value when stablizing;
When q＜1, the inclination of ship reception chamber can restrain, stable, and synchro system is effective to the inclination of opposing ship reception chamber;
As q〉1 the time, the inclination of ship reception chamber can not restrain, stable, synchro system is invalid to the inclination of opposing ship reception chamber.
When q＜1, above formula can further be reduced to:
Calculate S, S and acceptable ship railway carriage or compartment tilting value can be compared, whether meet the demands to judge synchro system rigidity.
Method two:
After ship booster supporting compartment ship railway carriage or compartment tilts, can produce the overturning moment relevant with ship railway carriage or compartment tilting value at ship reception chamber, can produce the overturning or slip resistance analysis moment relevant with ship railway carriage or compartment tilting value in synchro system, can be expressed as respectively:
1) M
I=k
IIn a formula,
M
IAfter the inclination of ship railway carriage or compartment, to the overturning moment of center, ship railway carriage or compartment generation
k
IBe the constant that is determined by the ship end structure
A is the metric of expression ship railway carriage or compartment inclined degree
2) M
II=k
IIIn a formula,
M
IIFor after the ship railway carriage or compartment tilts, the overturning or slip resistance analysis moment that produces in synchro system
k
IIBe the constant that is determined by synchronous system architecture
A is the metric of expression ship railway carriage or compartment inclined degree
After setting up above functional relation, respectively result of calculation is brought into coordinate system shown in Figure 5, M
I, M
IISlope be respectively k
I, k
II, slope also can represent respectively to topple rigidity and overturning or slip resistance analysis rigidity, relatively M
I, M
IISlope k
I, k
IISize, have:
Work as k
IIK
IThe time, then ship reception chamber can keep stable under the effect of synchro system;
Work as k
II＜k
IThe time, then ship reception chamber can not keep stable under the effect of synchro system.
Can carry out quantitative analysis to synchronous rigidity value by above synchro system rigidity judgment formula and synchro system rigidity value curve.
Direct-connected synchro system of the present invention adopts synchronizing shaft and reel by the mode that shaft coupling directly links to each other, and forms enclosed transmission system, can eliminate drive gap, makes its synchronous effect to ship reception chamber direct, reliably.Have novel, simple in structure, the service-strong characteristics of structure.Direct-connected ship lift synchro system of the present invention not only can be used for Waterpower type ship elevator, also can be used for other type ship lift.
Description of drawings
Fig. 1 is direct-connected ship lift synchro system rectangular configuration schematic diagram of the present invention.
Fig. 2 is direct-connected ship lift synchro system of the present invention " H " shape structural representation.
Fig. 3 concerns schematic diagram between drive gap and ship reception chamber tilt.
Fig. 4 is the schematic diagram that reaches control ship reception chamber level by relative motion between the control reel.
Fig. 5 is the sketch that concerns of synchro system rigidity and ship railway carriage or compartment inclined rigidity and ship railway carriage or compartment gradient.
Among the figure, 1-reel, 2-synchronizing shaft, 3-shaft coupling, the 4-reversing arrangement, 5-ship reception chamber, relative transmission maximal clearance between the a-reel, α-ship reception chamber angle of slope, M-synchro system rigidity and ship railway carriage or compartment inclined rigidity, curve I-ship railway carriage or compartment overturning moment, curve II-synchro system overturning or slip resistance analysis moment.
The specific embodiment
Embodiment 1:
Direct-connected ship lift synchro system of the present invention is made of a plurality of reels 1, synchronizing shaft 2, reversing arrangement 4, connect by synchronizing shaft 2 between reel, synchronizing shaft 2 is again by being connected with reel 1 without drive gap shaft coupling 3, reel forms two parallel reel groups after being connected by synchronizing shaft, between two parallel reel groups, be connected to form enclosed transmission system by reversing arrangement, be one of embodiment of the direct-connected ship lift synchro system of the present invention as shown in Figure 1, be the transmission system of rectangular closed formula.Reversing arrangement is bevel gear structure reversing arrangement (prior art).
Embodiment 2:
Be illustrated in figure 2 as the enclosed transmission system of H shape, identical with embodiment 1 with basic comprising.
In the design of ship lift synchro system, it is enough large that the integral rigidity that synchronous shaft system forms is wanted, the rigidity of toppling that the synchro system integral rigidity produces after must tilting greater than ship reception chamber, and its rigidity value is judged by following.
Method one:
Carry out judgement of stability according to following judgement of stability formula:
Δ is ship reception chamber initial tilt value (being the ship reception chamber both ends horizontal discrepancy in elevation), under the effect of Δ, the ship lift synchro system will be subject to certain moment of torsion, and synchro system torsional deflection can occur under the effect of moment of torsion, cause ship booster supporting compartment " Δ to occur further tilting
1', Δ
2', Δ
3' ... ", q tilted and the ratio that again tilts last time, and S is in the situation that the ship reception chamber initial tilt is " Δ ", ship reception chamber convergence, the tilting value when stablizing;
When q＜1, the inclination of ship reception chamber can restrain, stable, and synchro system is effective to the inclination of opposing ship reception chamber;
As q〉1 the time, the inclination of ship reception chamber can not restrain, stable, synchro system is invalid to the inclination of opposing ship reception chamber.
Calculate S, S and acceptable ship railway carriage or compartment tilting value can be compared, whether meet the demands to judge synchro system rigidity.
Method two:
After ship booster supporting compartment ship railway carriage or compartment tilts, can produce the overturning moment relevant with ship railway carriage or compartment tilting value at ship reception chamber, can produce the overturning or slip resistance analysis moment relevant with ship railway carriage or compartment tilting value in synchro system, be respectively:
1) M
I=k
IIn a formula, M
IAfter the inclination of ship railway carriage or compartment, to the overturning moment that center, ship railway carriage or compartment produces, k
IBe the constant that is determined by the ship end structure, a is the metric of expression ship railway carriage or compartment inclined degree;
2) M
II=k
IIIn a formula, M
IIAfter the inclination of ship railway carriage or compartment, at the overturning or slip resistance analysis moment that synchro system produces, k
IIBe the constant that is determined by synchronous system architecture, a is the metric of expression ship railway carriage or compartment inclined degree;
Respectively result of calculation is brought into coordinate system shown in Figure 5, relatively M
I, M
IISlope k
I, k
IISize, have:
Work as k
IIK
IThe time, then ship reception chamber can keep stable under the effect of synchro system;
Work as k
II＜k
IThe time, then ship reception chamber can not keep stable under the effect of synchro system.
Claims (4)
1. direct-connected ship lift synchro system, it is characterized in that direct-connected ship lift synchro system is made of a plurality of reels, synchronizing shaft, reversing arrangement, connect by synchronizing shaft between reel, synchronizing shaft is again by being connected with reel without the drive gap shaft coupling, reel forms two parallel reel groups after being connected by synchronizing shaft, is connected to form enclosed transmission system by reversing arrangement between two parallel reel groups.
2. direct-connected ship lift synchro system according to claim 1 is characterized in that enclosed transmission system is rectangle or H shape.
3. the stability judging method of direct-connected ship lift synchro system claimed in claim 1 is characterized in that carrying out judgement of stability according to following judgement of stability formula:
Δ is ship reception chamber initial tilt value (being the ship reception chamber both ends horizontal discrepancy in elevation), under the effect of Δ, the ship lift synchro system will be subject to certain moment of torsion, and synchro system torsional deflection can occur under the effect of moment of torsion, cause ship booster supporting compartment " Δ to occur further tilting
1', Δ
2', Δ
3' ... ", q tilted and the ratio that again tilts last time, and S is in the situation that the ship reception chamber initial tilt is " Δ ", ship reception chamber convergence, the tilting value when stablizing;
When q＜1, the inclination of ship reception chamber can restrain, stable, and synchro system is effective to the inclination of opposing ship reception chamber;
As q〉1 the time, the inclination of ship reception chamber can not restrain, stable, synchro system is invalid to the inclination of opposing ship reception chamber;
Calculate S, S and ship railway carriage or compartment tilting value are compared, whether meet the demands to judge synchro system rigidity.
4. the stability judging method of direct-connected ship lift synchro system claimed in claim 1, after it is characterized in that ship booster supporting compartment ship railway carriage or compartment tilts, produce the overturning moment relevant with ship railway carriage or compartment tilting value at ship reception chamber, in synchro system, produce the overturning or slip resistance analysis moment relevant with ship railway carriage or compartment tilting value, be respectively:
1) M
I=k
IIn a formula, M
IAfter the inclination of ship railway carriage or compartment, to the overturning moment that center, ship railway carriage or compartment produces, k
IBe the constant that is determined by the ship end structure, a is the metric of expression ship railway carriage or compartment inclined degree;
2) M
II=k
IIIn a formula, M
IIAfter the inclination of ship railway carriage or compartment, at the overturning or slip resistance analysis moment that synchro system produces, k
IIBe the constant that is determined by synchronous system architecture, a is the metric of expression ship railway carriage or compartment inclined degree;
Bring result of calculation into coordinate system respectively, relatively M
I, M
IISlope k
I, k
IISize:
Work as k
IIK
IThe time, then ship reception chamber can keep stable under the effect of synchro system;
Work as k
II＜k
IThe time, then ship reception chamber can not keep stable under the effect of synchro system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010662.2A CN103061319B (en) | 2013-01-12 | 2013-01-12 | A kind of direct-connected ship lift synchro system and stability judging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010662.2A CN103061319B (en) | 2013-01-12 | 2013-01-12 | A kind of direct-connected ship lift synchro system and stability judging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061319A true CN103061319A (en) | 2013-04-24 |
| CN103061319B CN103061319B (en) | 2015-07-29 |
Family
ID=48104185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010662.2A Active CN103061319B (en) | 2013-01-12 | 2013-01-12 | A kind of direct-connected ship lift synchro system and stability judging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103061319B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276712A (en) * | 2013-05-17 | 2013-09-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for preventing longitudinal ship mooring rope from fracturing when dock gate of ship lift opens |
| CN105354361A (en) * | 2015-10-01 | 2016-02-24 | 中国水利水电科学研究院 | Anti-overturning determination method for hydraulic ship lift |
| CN106441071A (en) * | 2016-10-09 | 2017-02-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Measurement method for clearances of synchronizing shafts of ship elevator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007000241A1 (en) * | 2007-04-25 | 2007-09-20 | Ed. Züblin Ag | Improved safety system for pillar-type threaded elements of vertical ship hoist of steel reinforced concrete has stacked threaded jaw elements connected by clamp elements under tension to be secure against compression and traction forces |
| CN202131594U (en) * | 2011-06-24 | 2012-02-01 | 中国水电顾问集团昆明勘测设计研究院 | Synchronous shaft system of hydraulic ship lifter |
| CN202466553U (en) * | 2012-02-14 | 2012-10-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Full-level balanced vertical ship elevator suitable for ship reception chamber to go in and go out of water |
| CN203049561U (en) * | 2013-01-12 | 2013-07-10 | 中国水电顾问集团昆明勘测设计研究院 | Direct-connection type ship elevator synchronous system |
-
2013
- 2013-01-12 CN CN201310010662.2A patent/CN103061319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007000241A1 (en) * | 2007-04-25 | 2007-09-20 | Ed. Züblin Ag | Improved safety system for pillar-type threaded elements of vertical ship hoist of steel reinforced concrete has stacked threaded jaw elements connected by clamp elements under tension to be secure against compression and traction forces |
| CN202131594U (en) * | 2011-06-24 | 2012-02-01 | 中国水电顾问集团昆明勘测设计研究院 | Synchronous shaft system of hydraulic ship lifter |
| CN202466553U (en) * | 2012-02-14 | 2012-10-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Full-level balanced vertical ship elevator suitable for ship reception chamber to go in and go out of water |
| CN203049561U (en) * | 2013-01-12 | 2013-07-10 | 中国水电顾问集团昆明勘测设计研究院 | Direct-connection type ship elevator synchronous system |
Non-Patent Citations (1)
| Title |
|---|
| 陈锦珍等: "垂直全平衡升船机承船厢的稳定性分析", 《水利水运科学研究》, no. 4, 31 December 1996 (1996-12-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276712A (en) * | 2013-05-17 | 2013-09-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for preventing longitudinal ship mooring rope from fracturing when dock gate of ship lift opens |
| CN105354361A (en) * | 2015-10-01 | 2016-02-24 | 中国水利水电科学研究院 | Anti-overturning determination method for hydraulic ship lift |
| CN106441071A (en) * | 2016-10-09 | 2017-02-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Measurement method for clearances of synchronizing shafts of ship elevator |
| CN106441071B (en) * | 2016-10-09 | 2018-11-09 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of ship lift synchronizing shaft gap measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103061319B (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103061319A (en) | Directly-connected simultaneous system of ship lifts and method for judging stability | |
| CN202767495U (en) | Counterweight rear support | |
| CN107060819B (en) | A kind of tunnel oil cylinder implementation formula inverted arch trestle and its application method | |
| CN201857227U (en) | Tower crane | |
| CN203998646U (en) | Walking tower crane traveling gear | |
| CN102828610B (en) | Rear counterweight support saddle | |
| CN205085979U (en) | Elevating gear of multiple -step type robot | |
| CN203049561U (en) | Direct-connection type ship elevator synchronous system | |
| CN206735304U (en) | A kind of vertical duction device for being used to transmit emulsion bag | |
| CN207434519U (en) | A kind of reduced titanium iron powder vibration screening oscillating bar conveyer | |
| CN209974097U (en) | Four-rope winding lifting appliance upper frame suitable for main lifting mechanism of field bridge equipment | |
| AU2013305476A1 (en) | Wave making apparatus with translating wake generating body | |
| CN204368955U (en) | A kind of convertible concrete conveyance stack pallet | |
| CN105354361A (en) | Anti-overturning determination method for hydraulic ship lift | |
| CN203359795U (en) | High-stability suspension device | |
| CN209585298U (en) | A kind of large-span prestressed beam-string structure drag-line support welding sphere joints | |
| CN202577708U (en) | Cable dome | |
| CN207606839U (en) | A kind of slide block type multistage coupling parallel institution | |
| CN201647872U (en) | Hoisting mechanism of single hoisting point foundry crane | |
| CN104986238A (en) | Paddy field walk device | |
| CN204871271U (en) | Paddy field running gear | |
| CN201785163U (en) | Lifting conveying device | |
| CN203667552U (en) | Novel frictional roller bed system | |
| CN102780179A (en) | General suspension hook for 66-220kv compound lead | |
| CN204821782U (en) | Paddy field running gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 650000 Kunming East Road, Yunnan, No. 115 Applicant after: China Kunming survey and design research institute company limited of electricity Jian group Address before: 650000 Kunming East Road, Yunnan, No. 115 Applicant before: Hydrochina Kunming Engineering Corp. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: KUNMING HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF CHINA HYDROPOWER CONSULTING GROUP TO: CHINESE ELECTRIC POWER CONSTRUCTION GROUP KUNMING DESIGN + RESEARCH INSTITUTE CO., LTD. |
|
| GR01 | Patent grant |