A kind of composite lifting stage
Technical field
The present invention relates to a kind of elevator stage, especially a kind of hydraulically powered large span composite lifting stage.
Background technology
Stage elevating platform is a kind of mechanical device common in arenas, is arranged in stage region, realizes vertical displacement movement, participates in performance, realizes special performing effect, also can transport performer and setting stage property.In theater, common Stage elevating platform is generally strip both at home and abroad, and the width of length and theatrical stage entablature is suitable, and in 16m~18m left and right, width is between 3m~4m.The elevating movement of elevating stage, realizes by type of drive such as wire rope, chain, rack-and-pinion, guilde screws for both sides in stage body structure, and concrete type of drive depends on speed, stroke and civil engineering condition etc.The mesa structure of elevating stage is individual layer or double-deck form, whole elevating stage one lifting when lifting.
For some special arenas, require the length of elevating stage longer, and on elevating stage, also arrange simultaneously some checkerboard formulas can lifting sub-platform, to meet more complicated performance requirement.For these elevating stages, span is excessive, and elevating stage is subject to the effect of stage body dead load and plus load to produce larger distortion, affects the use of elevating stage, and therefore traditional drive path and type of drive just can not meet instructions for use.
Summary of the invention
The present invention, in order to address the above problem, proposes a kind of large span steady type, and is provided with the composite lifting stage of the sub-platform can be movable relatively.
Technical scheme of the present invention is: a kind of composite lifting stage, comprise main, sub-platform and master control system, main comprises foundation structure, main fixed guide and main drive unit, foundation structure is steel work, main fixed guide is positioned at the two ends of foundation structure, main drive unit is hydraulic cylinder and the fluid pressure drive device being arranged symmetrically with, hydraulic cylinder top is fixed on the main couple of foundation structure below, adopt hydraulic lifting support and drive foundation structure to move both vertically, on main table top, be fixed with liftable sub-platform, when main entirety moves both vertically, sub-platform does relatively and moves both vertically, or sub-platform independently moving, all sub-platforms can be synchronized with the movement, also can singlely move, or marshalling motion.
Preferably, described main fixed guide comprises fixed support and guide rail disposed thereon, and foundation structure two ends are designed with leads boots and coordinate with guide rail.
Preferably, described sub-platform comprises sub-platform braced structures, sub-table frame structure and sub-platform drive unit, sub-platform braced structures is fixed on foundation structure table top, sub-table frame structure is sheathed on sub-platform braced structures outside, sub-table frame structure is cuboid, on the frame at inner four angles, be fixed with guide roller, outside four angles of sub-platform braced structures and guide roller are equipped with guide rail, sub-platform drive unit is arranged on foundation structure table top, the inside of every height platform lifting structure, drive and adopt steel wire rope winch, four frames of wire rope connexon table frame structure.
Preferably, two medial surfaces at the each angle of described sub-table frame structure are equipped with guide roller, and two lateral surfaces at each angle of sub-platform braced structures are equipped with guide rail.
Preferably, the motor arrangement of described steel wire rope winch, in centre position, is divided into two parts by sub-power gear-box and power transmission shaft power, then by secondary speed reduction box power distribution on end cable drum.
Preferably, described main lifting drive adopts 8 hydraulic cylinders, coordinate the balance of hydraulic cylinder by position coder and load transducer, set diverse location stop in elevator stage operational limit position and travel range by travel switch is installed, safe edge checkout gear is installed in foundation structure side below.
Preferably, the length of described main is 18m-33m, and width is 3m-6m, and the lifting travel of main is 15.5m.
Preferably, described sub-platform divides two rows, 11 of every row amounts, and sectional dimension is 3m × 3m, the lifting travel with respect to main is 4m.
Preferably, described sub-platform adopts checkerboard type to be fixed on main table top.
Preferably, four side structures of described sub-table frame structure have the degree of depth of 150mm, in these four sides, LED screen are installed.
The invention has the beneficial effects as follows: main foundation structure adopts hydraulic cylinder to carry out jacking, makes elevating stage under the prerequisite of large span, can not produce large distortion; Adopt the form of composite lifting platform, can also can move by independently moving simultaneously, can independently moving between sub-platform lifting structure, be synchronized with the movement or organize into groups operation, can form so abundanter movement effects, meet better the needs of performance, and the operation stroke of whole elevator stage also increases.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is main fixed guide of the present invention and foundation structure connection diagram;
Fig. 3 is that main structure of the present invention and sub-platform lifting structure all rise to extreme higher position schematic diagram;
Fig. 4 is that the present invention rises main structure and rises to extreme higher position schematic diagram.
Fig. 5 is that main structure of the present invention and sub-platform lifting structure all rise to extreme lower position schematic diagram;
Fig. 6 is the sub-platform braced structures of the present invention schematic diagram;
Fig. 7 is the sub-table frame structural representation of the present invention;
Fig. 8 is the sub-table frame structure of the present invention and sub-platform braced structures connection diagram;
Fig. 9 is the sub-platform drive unit of the present invention schematic diagram.
The specific embodiment
Further illustrate as follows below in conjunction with accompanying drawing:
A kind of composite lifting stage, as Fig. 1, comprises main, sub-platform and master control system, and main comprises foundation structure 1, main fixed guide 2 and main drive unit 3.Foundation structure 1 is cuboid steel work, meets support and the fixing requirement of antithetical phrase platform lifting structure when structure design under rated load, and the deflection deformation of structure is no more than 1/750 of main span, and levelness and repetitive positioning accuracy are ± 2mm.Main fixed guide 2 is positioned at the two ends of foundation structure 1, comprises fixed support 21 and guide rail 22 disposed thereon, and foundation structure 1 two ends are designed with leads boots 11 and coordinate with guide rail 22, as Fig. 2, and the stationarity while guaranteeing main operation; Main drive unit 3 is hydraulic cylinder and the fluid pressure drive device being arranged symmetrically with, hydraulic cylinder top is fixed on the main couple of foundation structure below, hydraulic cylinder base is stored in the foundation ditch of ground, fluid pressure drive device is positioned at machine room, in the present embodiment, adopt 8 hydraulic cylinders to carry out jacking support and drive foundation structure 1 to move both vertically, the layout of hydraulic cylinder meets stressed uniform state, by adopting position coder and load transducer to coordinate the balance of hydraulic cylinder, thereby guarantee levelness and the positioning precision of elevating stage; Set diverse location stop in elevator stage operational limit position and travel range by travel switch is installed, guarantee elevator stage security of operation; Below foundation structure 1 side shirt rim, safe edge checkout gear is installed; once touch below shirt rim in lifting process after object, sensor is passed to master control system by signal at once, and master control system is cut off the electricity supply at once; elevator stage is out of service immediately, protection personal security and device security.
Sub-platform adopts checkerboard type to be fixed on main table top, and when main entirety moves both vertically, sub-platform lifting structure does relatively and moves both vertically, or sub-platform independently moving.As Fig. 6-Fig. 8, sub-platform comprises sub-platform braced structures 4, sub-table frame structure 5, and sub-platform drive unit 6, sub-platform braced structures 4 is fixed on foundation structure 1 table top, sub-table frame structure 5 is sheathed on sub-platform braced structures 4 outsides, sub-table frame structure 5 is cuboid, on the frame at inner four angles, be fixed with adjustable guide roller 51, outside four angles of sub-platform braced structures 4 and guide roller 51 are equipped with guide rail 41, siding stopping platform is can be because of performer in the time that lifting moves unmovable and bear partial load etc. and cause and rock, guarantee sub-table frame structure 5 traveling comforts, guide roller 51 can move both vertically on the guide rail of sub-platform braced structures 4 41, two medial surfaces at described sub-table frame structure 5 each angles are equipped with guide roller 51, two lateral surfaces at each angle of sub-platform braced structures 4 are equipped with guide rail 41.
Sub-platform drive unit 6 is arranged on foundation structure 1 table top, the inside of every height platform lifting structure, drive the steel wire rope winch mode that adopts, motor 61 is arranged in centre position, by sub-power gear-box and power transmission shaft, power is divided into two parts, again by secondary speed reduction box 62 power distribution on end cable drum 63, four frames of wire rope connexon table frame structure 5, this arrangement can make four some synchronous workings that promote, as Fig. 9.Drive every height platform monomer to move both vertically by steel wire rope winch and guide roller, in mass motion, sub-platform also can do relative motion.
Four side structures of sub-table frame structure 5 have the degree of depth of 150mm, then in these four sides, LED screen is installed, can in performance process, play according to the story of a play or opera video frequency program that some set off performance by contrast, increase performing effect, by controlling the sub-platform combination of sub-platform lifting and diverse location, form different variation effects, give full play to director's imagination and expressive force.
The length of main can be at 18m-33m, and width can be at 3m-6m, and main is 15.5m.In the present embodiment, the length of main is 33m, and width is 6m.Sub-platform divides two rows, 11 of every row amounts, when performance for the various performances that form main stage highly and appearance effect.Every sectional dimension of sub-platform is 3m × 3m, and the lifting travel with respect to main is 4m, and in the time that itself and main are used in conjunction with, it is effectively performed stage and can regulate and change at the height of the above 4m in main stage surface and following 15.5m.When it is during in extreme lower position, the setting of the setting Storage in the platform storehouse of stage below can be moved on composite lifting platform.
By the motion of main of master control system control and sub-platform, can also can move by independently moving simultaneously, can independently moving between sub-platform, be synchronized with the movement or organize into groups operation, can form so abundanter movement effects, meet better the needs of performance, and the operation stroke of whole elevator stage also increases.
The foregoing is only preferably embodiment of the present invention, be not used for limiting practical range of the present invention, the equivalence of in every case doing in protection scope of the present invention changes and modifies, and all should think and fall in protection scope of the present invention.