CN104370209A - Large-scale portal frame - Google Patents
Large-scale portal frame Download PDFInfo
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- CN104370209A CN104370209A CN201410524221.9A CN201410524221A CN104370209A CN 104370209 A CN104370209 A CN 104370209A CN 201410524221 A CN201410524221 A CN 201410524221A CN 104370209 A CN104370209 A CN 104370209A
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- Prior art keywords
- movable girder
- tie
- guide wheel
- hoist cable
- suspention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
- B66C5/04—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for movements relative to bridge or gantry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a large-scale portal frame. The large-scale portal frame comprises two rails, two trolleys, two stand columns, a movable main beam and a connection beam. Two ends of the movable main beam are respectively erected on the stand columns and are connected to a lifting device. Upper ends of the two stand columns are connected by the connection beam. The large-scale portal frame also comprises at least two counterweight mechanisms, a connection beam adjustment mechanism and two suspention beams for fixing manipulators. The counterweight mechanism comprises a guide wheel group, a suspension cable and a counterweight block. The connection beam adjustment mechanism comprises at least one adjusting nut, at least one adjusting screw and an adjusting seat. The two suspention beams are symmetrically fixed to the movable main beam, one end of each one of the suspention beams is close to the center of the movable main beam and any one of the suspention beams is provided with a horizontal movement mechanism. The manipulators are connected to the suspention beams by the horizontal movement mechanisms. The large-scale portal frame satisfies span and height requirements and is suitable for 3D printing building extruding head arrangement.
Description
Technical field
The present invention relates to a kind of large-sized gantry frame.
Background technology
It is build by 3D printing technique the building of getting up that 3D prints building, be made up of a huge three-dimensional extrusion machinery, extrusion head is extruded as the building materialss such as cement concrete come for house creates basis and wall, directly produce building, and extrusion head must be supported by a portal frame and drive mobile, so that at different positions and the basis and the wall that highly print house.
The span of this portal frame obviously need be greater than by the overall dimensions printing building, at least be greater than 10m, it is high that height need reach at least two three floors, therefore large-sized gantry frame is belonged to, in the process printing building, portal frame needs entirety to move along guide rail, and portal frame needs the movable girder that can be elevated, and girder must provide for the guide rail of printhead along movable girder movement, due to the height of this portal frame and span all huge, the special construction being suitable for large-scale section mobile gantry frame must be adopted, but also do not find that applicable 3D prints the open source information of the large-sized gantry frame of building extrusion head at present.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of large-sized gantry frame, meets the demand of span and height, and is applicable to the setting that 3D prints building extrusion head.
The present invention is achieved in that a kind of large-sized gantry frame, comprises two row rails, two chassis, two columns, a movable girder and a tie-beam; Described two columns are located on a chassis respectively, and described two chassis are erected at respectively on row rail described in and also can move along described row rail; The two ends of described movable girder to be erected at respectively on column described in one and to connect a jacking system, and the upper end of described two columns is connected by described tie-beam; Wherein: also comprise at least two balance weight mechanisms, a tie-beam regulating mechanism and the two suspention beams for solid mechanical hand; Arbitrary described balance weight mechanism comprises guide wheel group, hoist cable and clump weight, and described guide wheel group is fixed on the top of described column, and described hoist cable winding is in guide wheel group and two ends connect clump weight and movable girder respectively; Described tie-beam regulating mechanism comprises at least one top-pushing mechanism, at least one catch gear and an adjustment seat, the top that described adjustment seat is fixed on column described in also and between described tie-beam end forms a gap, described top-pushing mechanism to be located in this gap while adjustable length resist in described tie-beam end and adjustment seat respectively, described adjustment seat lock onto on described tie-beam by described catch gear; Described two suspention beams are fixed on described movable girder symmetrically, and an end is arranged close to the center of described movable girder, and arbitrary described suspention beam is also provided with horizontal mobile mechanism, and described manipulator connects described suspention beam by this horizontal mobile mechanism.
Further, described jacking system comprises the transmission device of a plurality of tooth bar, gear composition, described tooth bar is vertically arranged and is evenly fixed on described two columns, and described a plurality of gear is connected to the both ends of described movable girder, and described gear is driven by motor.Jacking system adopts tooth bar, gear drive, and is evenly fixed on described two columns, makes operating steadily of movable girder.
Further, described jacking system also comprises corresponding a plurality of eccentric guide wheel devices being evenly distributed on described movable girder both ends, arbitrary described eccentric guide wheel device comprises guide rail, guide wheel, eccentric shaft, eccentric axis seat and lock nut, described guide rail is vertically arranged and is fixed on column, described guide wheel is arranged on this eccentric shaft, this eccentric shaft is located on eccentric axis seat, and eccentric axis seat to be fixed on described movable girder and to be locked by lock nut.The setting of eccentric guide wheel device can the smooth running of reinforcement activity girder further, but because movable girder is in the process run up and down, certain amount of deflection can be produced, guide wheel is made to depart from the position of guide rail, therefore eccentric shaft the fitness that can regulate guide wheel and guide rail is set, reduce the impact of amount of deflection, make the operation of movable girder more steady.
Further, arbitrary described column is made up of two discrete supporting legs, and described tooth bar, guide rail are located in the relative one side of two supporting legs, and the two ends of described movable girder are in the space between two supporting legs.In the space that the setting of supporting leg makes the two ends of movable girder be between two supporting legs, integral structure is more stable, more easily meets the large span of large-sized gantry frame and the requirement of height.
Further, described supporting leg is hollow leg, and the quantity of described balance weight mechanism is 4, and a corresponding supporting leg is arranged respectively, the equal correspondence of guide wheel group of arbitrary described balance weight mechanism is located at the top of supporting leg described in, and the equal correspondence of described clump weight is located at the inner space place of supporting leg described in.The setting of hollow leg, can make balance weight mechanism run in the space closed, safer.
Further, the guide wheel group of arbitrary described balance weight mechanism comprises two leading wheels and an auxiliary guide wheel group, described hoist cable comprises two main hoist cables and an insurance hoist cable, two leading wheels correspondences are located at the both sides of auxiliary guide wheel group, each clump weight is all hung by described two main hoist cables and is located on two leading wheels, and hung by described insurance hoist cable and be located in auxiliary guide wheel group, described main hoist cable is also connected described movable girder with the other end of insurance hoist cable, and the length of described insurance hoist cable is slightly larger than the length of two main hoist cables, make to bear pulling force suffered by normal working insurance hoist cable and be less than two main hoist cables.Auxiliary guide wheel group and insurance hoist cable realize the safety device of balance weight mechanism, when one of one of two leading wheels or main hoist cable go wrong, auxiliary guide wheel group and insurance hoist cable still play supporting, clump weight can not weightlessness drop, and ensure that safe operation, and is greater than main hoist cable due to safety jaw length, when one of one of two leading wheels or main hoist cable go wrong, clump weight there will be the situation of inclination, and therefore the main hoist cable of the on-the-spot Timeliness coverage of constructability goes wrong, and changes in time.
Further, the length difference of described Safety sling rope and main hoist cable state of nature, the combination being in main hoist cable and Safety sling rope loads the 80%-95% of the elastic elongation amount produced of the later main hoist cable of counterweight.
The length difference of most preferred described Safety sling rope and main hoist cable state of nature is 90% of the elastic elongation amount produced of main hoist cable after the combination loading counterweight of main hoist cable and Safety sling rope.
Further, arbitrary described clump weight comprises a main clump weight and a plurality of secondary clump weight, described secondary clump weight detouchable mode is connected on main clump weight, the weight summation of all main clump weights is equal to or slightly less than the weight of movable girder, and the weight of secondary clump weight described in is much smaller than the weight of a main clump weight.
Further, described two suspention beams are fixed on described movable girder by suspension apparatus, described suspension apparatus comprises a permanent seat, a length adjustment bar, an oscillating axle and a hangoff receptacle further, described permanent seat is fixedly connected on described movable girder, and be provided with vertical hanging hole, described length adjustment bar from top to bottom through being articulated in described oscillating axle after this vertical hanging hole, and described hangoff receptacle is also articulated in described oscillating axle and is fixedly connected with described suspention beam.Described length adjustment bar comprises a screw rod and two nuts, and wherein screw rod is arranged in the vertical hanging hole of described permanent seat, and described two nuts revolve respectively and are located on described screw rod, and outside the two ends up and down laying respectively at vertical hanging hole.Like this, by rotating the effective length of wherein a nut and adjustable length adjustment bar, making suspension apparatus be in suitable height to compensate because movable main beam deformation is on the impact of two suspention beam levelnesss, reducing the amount of deflection requirement to movable girder.
Further, described suspention beam comprises one further by long limit and the end to end rectangular frame of minor face, and described long limit and minor face are hollow rectangular tube, described long limit and minor face surround an inner space in order to arrange described horizontal mobile mechanism, the quantity of described suspension apparatus is 4, corresponding 4 bights being located at rectangular frame respectively, and two suspension apparatus being in rectangular frame short side direction end are connected to form a suspension by a bracing frame, described suspension also comprises two suspension ring and two Connection Blocks, described two suspension ring are located at the top of bracing frame, described two Connection Blocks are located at the bottom at the both ends of bracing frame, described suspension apparatus connects described movable girder by this Connection Block.Suspention beam is the framed structure of rectangle hollow pipe, can expendable weight under the prerequisite that intensity is enough, effectively to alleviate the pressure to movable girder, but because of the wider width of framed structure, the increasing number of required suspension apparatus, two suspension apparatus being in rectangular frame short side direction end are connected to form a suspension by a bracing frame, are formed overall, be more conducive to the balance and stability of framed structure.
Further, described horizontal mobile mechanism comprises gear, horizontal rack, equipment mount pad, horizontal guide rail and gliding mass further, described gear to be located on equipment mount pad and to be driven by a motor, described suspention beam horizontal rack to be located on described suspention beam and and gears meshing, described horizontal guide rail is located on described suspention beam, and described gliding mass is located on described equipment mount pad and also can slides along described horizontal guide rail.Horizontal mobile mechanism is made up of the engagement of rack and pinion, and that adds horizontal guide rail and gliding mass coordinates to increase acting point, makes the operation of manipulator more steady, reliably.Described horizontal rack is located at described long limit and surrounds an inner space place with minor face and be connected described long limit, and described horizontal guide rail has two, is located at the bottom on a long limit of rectangular frame respectively.Described horizontal mobile mechanism also comprises a dust boot, described dust boot is the retractable dust boot of two sectional type, these two sections are connected between equipment mount pad and the end of horizontal guide rail, and coated described horizontal guide rail and gliding mass, affect to prevent described horizontal guide rail and gliding mass from getting dirty and slide.
Further, described horizontal mobile mechanism also comprises a plurality of energy disperser, is located at the stroke boundary that described suspention beam two ends also correspond to described equipment mount pad respectively.Can collision bumper when described equipment mount pad moves to stroke boundary, with obtain a cushion effect make anxious stop not impaired.
Further, the length of described suspention beam is less than the length of the movable girder of 1/2, but is greater than the length of the movable girder of 1/4.The suspention beam of this length can play good stiffening effect, makes horizontal mobile mechanism keep straight, is beneficial to the smooth and easy movement of manipulator.
Further, described top-pushing mechanism comprises a pushing tow screw rod and a pushing tow negative thread, and described pushing tow negative thread is located in adjustment seat, and one end of described pushing tow screw rod is resisted in described tie-beam, and the other end revolves and is located in this pushing tow negative thread; Described catch gear comprises a lock bolt or screw rod and a jam nut, one end of described lock bolt or screw rod is fixedly connected with on described tie-beam, locked by described jam nut after the other end wears described adjustment seat, make pushing tow screw rod, tie-beam, adjustment seat form pretension relation.
Further, one end of described pushing tow screw rod is also fixedly connected with a cylinder push block, and the outside dimension of this cylinder push block is greater than the outside dimension of pushing tow screw rod, and resists in described tie-beam.
Further, the end of described tie-beam is provided with an end plate, described adjustment seat is L-type, comprise the reinforcement triangular plate of a riser, transverse sheet and a plurality of rectangular three shapes, described riser stands in the end of described tie-beam and arranges with described end plate is parallel, and transverse sheet is fixedly connected with described column, and two square edges of described a plurality of reinforcement triangular plate connect described riser and transverse sheet, described top-pushing mechanism and described catch gear are multiple, and are arranged on described end plate and riser by matrix structure.
Tool of the present invention has the following advantages: large-sized gantry frame of the present invention, meet the demand of span and height, movable girder can be made to run by two balance weight mechanisms laborsaving, steadily, the structure of two columns and tie-beam composition can be regulated more stable by tie-beam regulating mechanism, the bending resistance degree of movable girder can be strengthened by two suspention beams, keep the straight of horizontal mobile mechanism, be beneficial to the smooth and easy movement of manipulator.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of large-sized gantry frame of the present invention, wherein show events girder be in high-order and low level two location statuss.
Fig. 1 a is the magnifying state schematic diagram of jacking system part in Fig. 1.
Fig. 2 is the perspective view of large-sized gantry frame of the present invention.
Fig. 3 is the structural representation of the eccentric guide wheel device of large-sized gantry frame of the present invention.
Fig. 4 is the main TV structure schematic diagram of the tie-beam regulating mechanism of large-sized gantry frame of the present invention.
Fig. 4 a is the plan structure schematic diagram of the tie-beam regulating mechanism of large-sized gantry frame of the present invention.
Fig. 4 b is the theory structure schematic diagram of the tie-beam regulating mechanism of large-sized gantry frame of the present invention.
Fig. 5 is the theory structure schematic diagram of the balance weight mechanism of large-sized gantry frame of the present invention.
Fig. 5 a is the plan structure schematic diagram at the column top of large-sized gantry frame of the present invention.
Fig. 6 is half section, a left side for activity girder of the present invention and the main TV structure schematic diagram of a suspention beam.
Fig. 7 is the main TV structure schematic diagram of the suspention beam in the present invention.
Fig. 8 is the plan structure schematic diagram of the suspention beam in the present invention.
Fig. 9 be suspention beam in the present invention look up structural representation.
Figure 10 is the side-looking structural representation of the suspention beam in the present invention.
Figure 11 is the main TV structure schematic diagram of the suspension in the present invention.
Figure 12 is the plan structure schematic diagram of the suspension in the present invention.
Figure 13 is the side-looking structural representation of the suspension in the present invention.
Detailed description of the invention
As shown in figure 1 to figure 13, large-sized gantry frame 100 of the present invention, comprises two row rail 11, two chassis 12, two column 2, movable girder 3 and tie-beams 4; Described two columns 2 are located on a chassis 12 respectively, and described two chassis 12 are erected at respectively on row rail 11 described in and also can move along described row rail 11; The two ends of described movable girder 3 to be erected at respectively on column 2 described in one and to connect a jacking system 5, and the upper end of described two columns 2 is connected by described tie-beam 4; Wherein: also comprise at least two balance weight mechanism 6, tie-beam regulating mechanisms 7 and the two suspention beams 8 for solid mechanical hand 200;
Main as shown in Fig. 5 and Fig. 5 a, arbitrary described balance weight mechanism 6 comprises guide wheel group 61, hoist cable 62 and clump weight 63, described guide wheel group 61 is fixed on the top of described column 2, and the winding of described hoist cable 62 is in guide wheel group 61 and two ends connect clump weight 63 and movable girder 4 respectively; The weight of all clump weights 63 needs the weight of approximately suspend beam 8 with two of movable girder 4 and solid mechanical hand 200 close, thus the similar weight that hoist cable 62 two ends are subject to, and is beneficial at the uniform velocity safe upper long of movable girder 4 and rises or decline;
Main as shown in Fig. 4 to Fig. 4 b, described tie-beam regulating mechanism 7 comprises at least one top-pushing mechanism 71, at least one catch gear 72 and an adjustment seat 73, the top that described adjustment seat 73 is fixed on column 2 described in also and between described tie-beam 4 end forms a gap 74, described top-pushing mechanism 71 to be located in this gap 74 while adjustable length resist in described tie-beam 4 end and adjustment seat 73 respectively, described adjustment seat 73 lock onto on described tie-beam 4 by described catch gear 72.
In preferred embodiment, described top-pushing mechanism 71 comprises pushing tow screw rod 711 and a pushing tow negative thread 712, described pushing tow negative thread 712 is located in adjustment seat 73, and one end of described pushing tow screw rod 711 is resisted in described tie-beam 4, and the other end revolves and is located in this pushing tow negative thread 712; Described catch gear 72 comprises a lock bolt or screw rod 721 and a jam nut 722, one end of described lock bolt or screw rod 721 is fixedly connected with on described tie-beam 4, locked by described jam nut 722 after the other end wears described adjustment seat 73, make pushing tow screw rod 711, tie-beam 4, adjustment seat 73 form pretension relation.One end of described pushing tow screw rod 711 is also fixedly connected with a cylinder push block 713, and the outside dimension of this cylinder push block 713 is greater than the outside dimension of pushing tow screw rod 711, and resists in described tie-beam 4.The end of described tie-beam 4 is provided with an end plate 41, described adjustment seat 73 is L-type, comprise the reinforcement triangular plate 733 of a riser 731, transverse sheet 732 and a plurality of rectangular three shapes, described riser 731 stands in the end of described tie-beam 4 and arranges with described end plate 41 is parallel, transverse sheet 732 is fixedly connected with described column 2, two square edges of described a plurality of reinforcement triangular plate 733 connect described riser 731 and transverse sheet 732, described top-pushing mechanism 71 and described catch gear 72 are multiple, and are arranged on described end plate 41 and riser 731 by matrix structure.
The principle of work of described tie-beam regulating mechanism 7 is: the degree of depth being screwed in pushing tow negative thread 712 under the state that jam nut 722 is not locked by adjustment pushing tow screw rod 711, to adapt to the distance between two columns 2, afterwards by screwing jam nut 722, because one end of lock bolt or screw rod 712 is fixedly connected with on described tie-beam 4, be locked by described jam nut 722 after the other end wears described adjustment seat 73, thus form stable stress balance with top-pushing mechanism 71.
Mainly as depicted in figs. 1 and 2, the transmission device that described jacking system 5 comprises a plurality of tooth bar 51, gear 52 forms, described tooth bar 51 is vertically arranged and is evenly fixed on described two columns 2, described a plurality of gear 52 is connected to the both ends of described movable girder 3, and described gear 52 is driven by motor.The transmission device that jacking system 5 adopts tooth bar 51, gear 52 to form, and be evenly fixed on described two columns 2, operating steadily of movable girder 3 can be made.
Described jacking system 5 also comprises corresponding a plurality of eccentric guide wheel devices 53 being evenly distributed on described movable girder 3 both ends, arbitrary described eccentric guide wheel device 53 comprises guide rail 531, guide wheel 532, eccentric shaft 533, eccentric axis seat 534 and lock nut 535, described guide rail 531 is vertically arranged and is fixed on column 2, described guide wheel 532 is arranged on this eccentric shaft 533, this eccentric shaft 533 is located on eccentric axis seat 534, and eccentric axis seat 534 to be fixed on described movable girder 3 and to be locked by lock nut 535.The setting of eccentric guide wheel device 53 can the smooth running of reinforcement activity girder 3 further, but because movable girder 3 is in the process run up and down, column 2 can produce certain amount of deflection, guide wheel 532 is made to depart from the position of guide rail 531, therefore eccentric shaft 533 the fitness that can regulate guide wheel 532 and guide rail 531 is set, reduce the impact of amount of deflection, make the operation of movable girder 3 more steady.
Compared with in the embodiment in happy festival time, arbitrary described column 2 is made up of two discrete supporting legs 22, and the tooth bar 51 in described jacking system 5, guide rail 531 are located in the relative one side of two supporting legs 22, in the space that the two ends of described movable girder 3 are between two supporting legs 22.In the space that the setting of supporting leg 22 makes the two ends of movable girder 3 be between two supporting legs 22, integral structure is more stable, more easily meets the large span of large-sized gantry frame and the requirement of height.
Described supporting leg 22 is hollow leg, the quantity of described balance weight mechanism 6 is 4, a corresponding supporting leg 22 is arranged respectively, and the equal correspondence of guide wheel group 61 of arbitrary described balance weight mechanism 6 is located at the top of supporting leg 22 described in, and described clump weight 6 all correspondence is located at the inner space place of supporting leg 22 described in.The setting of hollow leg, can make balance weight mechanism 6 run in the space closed, safer.
Main as shown in Fig. 5 to Fig. 5 a, the guide wheel group 61 of arbitrary described balance weight mechanism comprises two leading wheels 611 and auxiliary guide wheel group 612, described hoist cable 62 comprises two main hoist cable 621 and insurance hoist cables 622, two leading wheels 611 correspondences are located at the both sides of auxiliary guide wheel group 612, the clump weight 63 of balance weight mechanism described in each is all hung by hoist cable 621 main described in two and is located on two leading wheels 611, and hung by described insurance hoist cable 622 and be located in auxiliary guide wheel group 612, and described two main hoist cables 621 are also connected described movable girder 3 with the other end of insurance hoist cable 622.This auxiliary guide wheel group 612 and insurance hoist cable 622 realize the safety device of balance weight mechanism 6, when one of one of two leading wheels 611 or two main hoist cables 621 go wrong, auxiliary guide wheel group 612 and insurance hoist cable 622 still play supporting, and clump weight 63 can not weightlessness drop, and ensure that safe operation.And be greater than main hoist cable due to safety jaw length, when one of one of two leading wheels or main hoist cable go wrong, clump weight there will be the situation of inclination, and therefore the main hoist cable of the on-the-spot Timeliness coverage of constructability goes wrong, and changes in time.
The length difference of described Safety sling rope 622 and main hoist cable 621 state of nature, the combination being in main hoist cable 621 and Safety sling rope 622 loads the 80%-95% of the elastic elongation amount produced of the later main hoist cable 621 of counterweight, and wherein most preferably point value is 90%.
This meets Hook's law namely in elastic limit because main hoist cable 621 and Safety sling rope 622 are in elastic deformation, and the deformation quantity of object is directly proportional with causing the external force of deformation.Safety sling rope 622 length is greater than main hoist cable 621 length, the deflection loading the Safety sling rope 622 when counterweight produces is less than the deflection of main hoist cable 621, therefore the stress suffered by Safety sling rope 622 can be made in normal operation to be less than main hoist cable 621, simultaneously Safety sling rope 622 should be in tensioning state and avoids getting loose, to prepare at any time to bear larger pulling force when main hoist cable 621 meets accident.Our experiments show that, the combination being preferably in main hoist cable 621 and Safety sling rope 622 loads the 80%-95% of the elastic elongation amount produced of the later main hoist cable 621 of counterweight, and the best is 90%.
Wherein, in order to be fitted on suitable weight, arbitrary described clump weight 63 can comprise a main clump weight and a plurality of secondary clump weight, described secondary clump weight detouchable mode is connected on main clump weight, the weight summation of all main clump weights is equal to or slightly less than the weight of movable girder 3, and the weight of secondary clump weight described in is much smaller than the weight of a main clump weight.Like this, secondary clump weight can play a fine setting.
Main as shown in Fig. 6 to Figure 13, described two suspention beams 8 are fixed on described movable girder 3 symmetrically, and an end is arranged close to the center of described movable girder 3, arbitrary described suspention beam 8 is also provided with horizontal mobile mechanism 82, and described manipulator 200 connects described suspention beam 8 by this horizontal mobile mechanism 82.
Compared with in the embodiment in happy festival time, described two suspention beams 8 are fixed on described movable girder 3 by suspension apparatus 91, described suspension apparatus 91 comprises permanent seat 911, length adjustment bar 912, oscillating axle 913 and a hangoff receptacle 914 further, described permanent seat 911 is fixedly connected on described movable girder 3, and be provided with vertical hanging hole 9112, described length adjustment bar 912 from top to bottom through being articulated in described oscillating axle 913 after this vertical hanging hole 9112, and described hangoff receptacle 914 is also articulated in described oscillating axle 913 and is fixedly connected with described suspention beam 8.Described length adjustment bar 912 comprises screw rod 9121 and two nuts 9122, wherein screw rod 9121 is arranged in the vertical hanging hole 9112 of described permanent seat 911, described two nuts 9122 revolve respectively and are located on described screw rod 9121, and outside the two ends up and down laying respectively at vertical hanging hole 9112.Like this, by rotating a wherein nut 9122 i.e. effective length of adjustable length adjustment bar 912, make suspension apparatus 91 be in suitable height to compensate because movable girder 3 is out of shape the impact of suspending beam 8 levelnesss on two in midair, reduce the amount of deflection requirement to movable girder 3; Installation relation simultaneously by adopting the mounting means of hangoff receptacle-oscillating axle to define hinged suspension, eliminates because movable girder 3 distortion makes permanent seat 911 attachment face and the not parallel and stress that produces of hangoff receptacle 914 attachment face.
Described suspention beam 8 comprises one further by long limit 801 and the end to end rectangular frame of minor face 802, and described long limit 801 and minor face 802 are hollow rectangular tube, described long limit 801 and minor face 802 surround an inner space 803 in order to arrange described horizontal mobile mechanism 82, the quantity of described suspension apparatus 91 is 4, corresponding 4 bights being located at rectangular frame respectively, and two suspension apparatus 91 being in rectangular frame short side direction end are connected to form a suspension 9 by a bracing frame 92, described suspension 9 also comprises two suspension ring 93 and two Connection Blocks 94, described two suspension ring 93 are located at the top of bracing frame 92, described two Connection Blocks 94 are located at the bottom at the both ends of bracing frame 92, described suspension apparatus 91 connects described movable girder by this Connection Block 94.Suspention beam 8 is the framed structure of rectangle hollow pipe, can expendable weight under the prerequisite that intensity is enough, effectively to alleviate the pressure to movable girder 3, but because of the wider width of framed structure, the increasing number of required suspension apparatus 91, two suspension apparatus 91 being in rectangular frame short side direction end are connected to form a suspension 9 by a bracing frame 92, are formed overall, be more conducive to the balance and stability of framed structure.
Described horizontal mobile mechanism 82 comprises gear 821, horizontal rack 822, equipment mount pad 823, horizontal guide rail 824 and gliding mass 825 further, described gear 821 to be located on equipment mount pad 823 and to be driven by a motor 828, namely equipment such as manipulator 200 grade be arranged on equipment mount pad 823, described suspention beam horizontal rack 822 to be located on described suspention beam 82 and to engage with gear 821, described horizontal guide rail 824 is located on described suspention beam 82, and described gliding mass 825 is located on described equipment mount pad 823 and also can slides along described horizontal guide rail 824.Horizontal mobile mechanism 82 is made up of the engagement of rack and pinion, and that adds horizontal guide rail and gliding mass coordinates to increase acting point, makes the operation of manipulator 200 more steady, reliably.Described horizontal rack 822 is located at described long limit 801 and surrounds inner space 803 place with minor face 802 and be connected described long limit 801, and described horizontal guide rail 824 has two, is located at the bottom on a long limit 801 of rectangular frame respectively.Described horizontal mobile mechanism 82 also comprises a dust boot 826, described dust boot 826 is the retractable dust boot of two sectional type, these two sections are connected between the end of equipment mount pad 823 and horizontal guide rail 824, and coated described horizontal guide rail 824 and gliding mass 825, affect to prevent described horizontal guide rail 824 and gliding mass 825 from getting dirty and slide.
Described horizontal mobile mechanism 82 also comprises a plurality of energy disperser 827, is located at the stroke boundary that described suspention beam 82 two ends also correspond to described equipment mount pad 823 respectively.Can collision bumper 827 when described equipment mount pad 823 moves to stroke boundary, with obtain a cushion effect make anxious stop not impaired.
Mainly as shown in Figure 6, the length of described suspention beam 8 is less than the length of the movable girder 3 of 1/2, but is greater than the length of the movable girder 3 of 1/4.The suspention beam 8 of this length can play good stiffening effect, makes horizontal mobile mechanism 82 keep straight, is beneficial to the smooth and easy movement of manipulator 200.
In sum, large-sized gantry frame of the present invention, meet the demand of span and height, movable girder can be made to run by two balance weight mechanisms laborsaving, steadily, the structure of two columns and tie-beam composition can be regulated more stable by tie-beam regulating mechanism, the bending resistance degree of movable girder can be strengthened by two suspention beams, keep the straight of horizontal mobile mechanism, be beneficial to the smooth and easy movement of manipulator.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (16)
1. a large-sized gantry frame, comprises two row rails, two chassis, two columns, a movable girder and a tie-beam; Described two columns are located on a chassis respectively, and described two chassis are erected at respectively on row rail described in and also can move along described row rail; The two ends of described movable girder to be erected at respectively on column described in one and to connect a jacking system, and the upper end of described two columns is connected by described tie-beam; It is characterized in that: also comprise at least two balance weight mechanisms, a tie-beam regulating mechanism and the two suspention beams for solid mechanical hand;
Arbitrary described balance weight mechanism comprises guide wheel group, hoist cable and clump weight, and described guide wheel group is fixed on the top of described column, and described hoist cable winding is in guide wheel group and two ends connect clump weight and movable girder respectively;
Described tie-beam regulating mechanism comprises at least one top-pushing mechanism, at least one catch gear and an adjustment seat, the top that described adjustment seat is fixed on column described in also and between described tie-beam end forms a gap, described top-pushing mechanism to be located in this gap while adjustable length resist in described tie-beam end and adjustment seat respectively, described adjustment seat lock onto on described tie-beam by described catch gear;
Described two suspention beams are fixed on described movable girder symmetrically, and an end is arranged close to the center of described movable girder, and arbitrary described suspention beam is also provided with horizontal mobile mechanism, and described manipulator connects described suspention beam by this horizontal mobile mechanism.
2. large-sized gantry frame according to claim 1, it is characterized in that: described jacking system comprises the transmission device of a plurality of tooth bar, gear composition, described tooth bar is vertically arranged and is evenly fixed on described two columns, described a plurality of gear is connected to the both ends of described movable girder, and described gear is driven by motor.
3. large-sized gantry frame according to claim 2, it is characterized in that: described jacking system also comprises corresponding a plurality of eccentric guide wheel devices being evenly distributed on described movable girder both ends, arbitrary described eccentric guide wheel device comprises guide rail, guide wheel, eccentric shaft, eccentric axis seat and lock nut, described guide rail is vertically arranged and is fixed on column, described guide wheel is arranged on this eccentric shaft, this eccentric shaft is located on eccentric axis seat, and eccentric axis seat to be fixed on described movable girder and to be locked by lock nut.
4. large-sized gantry frame according to claim 3, it is characterized in that: arbitrary described column is made up of the supporting leg of two discrete hollows, described tooth bar, guide rail are located in the relative one side of two supporting legs, make the two ends of described movable girder be in the space between two supporting legs; The quantity of described balance weight mechanism is 4, and a corresponding supporting leg is arranged respectively, and the equal correspondence of guide wheel group of arbitrary described balance weight mechanism is located at the top of supporting leg described in, and the equal correspondence of described clump weight is located at the inner space place of supporting leg described in.
5. large-sized gantry frame according to claim 4, it is characterized in that: the guide wheel group of arbitrary described balance weight mechanism comprises two leading wheels and an auxiliary guide wheel group, described hoist cable comprises two main hoist cables and an insurance hoist cable, two leading wheels correspondences are located at the both sides of auxiliary guide wheel group, each clump weight is all hung by described two main hoist cables and is located on two leading wheels, and hung by described insurance hoist cable and be located in auxiliary guide wheel group, described main hoist cable is also connected described movable girder with the other end of insurance hoist cable, and the length of described insurance hoist cable is slightly larger than the length of two main hoist cables, make to bear pulling force suffered by normal working insurance hoist cable and be less than two main hoist cables.
6. large-sized gantry frame according to claim 5, is characterized in that: the length difference of described Safety sling rope and main hoist cable state of nature, and the combination being in main hoist cable and Safety sling rope loads the 80%-95% of the elastic elongation amount produced of the later main hoist cable of counterweight.
7. large-sized gantry frame according to claim 1, it is characterized in that: arbitrary described clump weight comprises a main clump weight and a plurality of secondary clump weight, described secondary clump weight detouchable mode is connected on main clump weight, the weight summation of all main clump weights is equal to or slightly less than the weight of movable girder, and the weight of secondary clump weight described in is much smaller than the weight of a main clump weight.
8. large-sized gantry frame according to claim 1, it is characterized in that: described two suspention beams are fixed on described movable girder by suspension apparatus, described suspension apparatus comprises a permanent seat, a length adjustment bar, an oscillating axle and a hangoff receptacle further, described permanent seat is fixedly connected on described movable girder, and be provided with vertical hanging hole, described length adjustment bar from top to bottom through being articulated in described oscillating axle after this vertical hanging hole, and described hangoff receptacle is also articulated in described oscillating axle and is fixedly connected with described suspention beam.
9. large-sized gantry frame according to claim 8, it is characterized in that: described length adjustment bar comprises a screw rod and two nuts, wherein screw rod is arranged in the vertical hanging hole of described permanent seat, and described two nuts revolve respectively and are located on described screw rod, and outside the two ends up and down laying respectively at vertical hanging hole.
10. large-sized gantry frame according to claim 9, is characterized in that: the length of described suspention beam is less than the length of the movable girder of 1/2, but is greater than the length of the movable girder of 1/4, described suspention beam comprises one further by long limit and the end to end rectangular frame of minor face, and described long limit and minor face are hollow rectangular tube, described long limit and minor face surround an inner space in order to arrange described horizontal mobile mechanism, the quantity of described suspension apparatus is 4, corresponding 4 bights being located at rectangular frame respectively, and two suspension apparatus being in rectangular frame short side direction end are connected to form a suspension by a bracing frame, described suspension also comprises two suspension ring and two Connection Blocks, described two suspension ring are located at the top of bracing frame, described two Connection Blocks are located at the bottom at the both ends of bracing frame, described suspension apparatus connects described movable girder by this Connection Block.
11. large-sized gantry framves as described in claim 1 or 10, it is characterized in that: described horizontal mobile mechanism comprises gear, horizontal rack, equipment mount pad, horizontal guide rail and gliding mass further, described gear to be located on equipment mount pad and to be driven by a motor, described suspention beam horizontal rack to be located on described suspention beam and and gears meshing, described horizontal guide rail is located on described suspention beam, and described gliding mass is located on described equipment mount pad and also can slides along described horizontal guide rail.
12. large-sized gantry framves as claimed in claim 11, is characterized in that: described horizontal rack is located at described long limit and surrounds an inner space place with minor face and be connected described long limit, and described horizontal guide rail has two, is located at the bottom on a long limit of rectangular frame respectively.
13. large-sized gantry framves as claimed in claim 11, it is characterized in that: described horizontal mobile mechanism also comprises a dust boot, described dust boot is the retractable dust boot of two sectional type, and these two sections are connected between equipment mount pad and the end of horizontal guide rail, and coated described horizontal guide rail and gliding mass; Described horizontal mobile mechanism also comprises a plurality of energy disperser, is located at the stroke boundary that described suspention beam two ends also correspond to described equipment mount pad respectively.
14. large-sized gantry framves as claimed in claim 1, it is characterized in that: described top-pushing mechanism comprises a pushing tow screw rod and a pushing tow negative thread, described pushing tow negative thread is located in adjustment seat, and one end of described pushing tow screw rod is resisted in described tie-beam, and the other end revolves and is located in this pushing tow negative thread; Described catch gear comprises a lock bolt or screw rod and a jam nut, one end of described lock bolt or screw rod is fixedly connected with on described tie-beam, locked by described jam nut after the other end wears described adjustment seat, make pushing tow screw rod, tie-beam, adjustment seat form pretension relation.
15. large-sized gantry framves as claimed in claim 14, is characterized in that: one end of described pushing tow screw rod is also fixedly connected with a cylinder push block, and the outside dimension of this cylinder push block is greater than the outside dimension of pushing tow screw rod, and resists in described tie-beam.
16. large-sized gantry framves as described in claims 14 or 15, it is characterized in that: the end of described tie-beam is provided with an end plate, described adjustment seat is L-type, comprise the reinforcement triangular plate of a riser, transverse sheet and a plurality of rectangular three shapes, described riser stands in the end of described tie-beam and arranges with described end plate is parallel, transverse sheet is fixedly connected with described column, two square edges of described a plurality of reinforcement triangular plate connect described riser and transverse sheet, described top-pushing mechanism and described catch gear are multiple, and are arranged on described end plate and riser by matrix structure.
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| CN201410524221.9A CN104370209B (en) | 2014-09-30 | 2014-09-30 | A kind of large-sized gantry frame |
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| CN201410524221.9A CN104370209B (en) | 2014-09-30 | 2014-09-30 | A kind of large-sized gantry frame |
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| CN104370209A true CN104370209A (en) | 2015-02-25 |
| CN104370209B CN104370209B (en) | 2016-07-06 |
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| CN110733940A (en) * | 2019-10-29 | 2020-01-31 | 湖北海洋工程装备研究院有限公司 | underwater robot winding and unwinding devices |
| CN112520569A (en) * | 2020-10-30 | 2021-03-19 | 贺州市新伟业粉体有限公司 | Calcium carbonate powder loading device |
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