CN104370209B - A kind of large-sized gantry frame - Google Patents
A kind of large-sized gantry frame Download PDFInfo
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- CN104370209B CN104370209B CN201410524221.9A CN201410524221A CN104370209B CN 104370209 B CN104370209 B CN 104370209B CN 201410524221 A CN201410524221 A CN 201410524221A CN 104370209 B CN104370209 B CN 104370209B
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- tie
- movable girder
- hoist cable
- gantry frame
- seat
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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
Abstract
The present invention provides a kind of large-sized gantry frame, including two row rails, two chassis, two columns, movable girder and a tie-beam；The two ends of described movable girder are respectively erected on column described in one and connect a lowering or hoisting gear, and the upper end of described two columns is connected by described tie-beam；Also include at least two balance weight mechanisms, a tie-beam governor motion and the two suspention beams for solid mechanical hands；Arbitrary described balance weight mechanism includes guide wheel group, hoist cable and balancing weight, described tie-beam governor motion includes at least one adjusting nut, at least one adjusting screw rod and an adjustment seat, described two suspention beams are fixed on described movable girder symmetrically, and one end is arranged close to the center of described movable girder, being additionally provided with horizontal mobile mechanism on arbitrary described suspention beam, described mechanical hand connects described suspention beam by this horizontal mobile mechanism.The large-sized gantry frame of the present invention, meets span and the demand of height, and applicable 3D prints the setting of building extrusion head.
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, it is made up of a huge three-dimensional extrusion machinery, extrusion head extrusion to create basis and wall for house such as construction materials such as concrete, directly produce building, and extrusion head must flow through a portal frame and supports and drive movement, in order at different positions and the basis and the wall that highly print house.
The span of this portal frame obviously need to more than being printed the overall dimensions of building, at least above 10m, it is high that height need to reach at least two three floors, it is consequently belonging to large-sized gantry frame, in the process printing building, portal frame needs entirety to move along guide rail, and portal frame needs the movable girder that can lift, and girder must provide for the guide rail moved for printhead along movable girder, owing to height and the span of this portal frame are all huge, necessarily adopt the special construction being suitable to large-scale section mobile gantry frame, but there is presently no the open source information being found suitable for the large-sized gantry frame that 3D prints building extrusion head.
Summary of the invention
The technical problem to be solved in the present invention, is in that to provide a kind of large-sized gantry frame, meets span and the demand of height, and applicable 3D prints the setting of building extrusion head.
The present invention is achieved in that a kind of large-sized gantry frame, including two row rails, two chassis, two columns, movable girder and a tie-beam；Described two columns are respectively provided on a chassis, and described two chassis are respectively erected on row rail described in one and can move along described row rail；The two ends of described movable girder are respectively erected on column described in one and connect a lowering or hoisting gear, and the upper end of described two columns is connected by described tie-beam；Wherein: also include at least two balance weight mechanisms, a tie-beam governor motion and the two suspention beams for solid mechanical hands；Arbitrary described balance weight mechanism includes guide wheel group, hoist cable and balancing weight, and described guide wheel group is fixed on the top of described column, and described hoist cable is around being located in guide wheel group and two ends connect balancing weight and movable girder respectively；Described tie-beam governor motion includes at least one top-pushing mechanism, at least one retaining mechanism and an adjustment seat, described adjustment seat be fixed on column described in top and and described tie-beam end between form a gap, described top-pushing mechanism be located in this gap and adjustable length resist respectively in described tie-beam end and adjustment seat, described adjustment seat is lock onto on described tie-beam by described retaining mechanism；Described two suspention beams are fixed on described movable girder symmetrically, and one end is close to the center setting of described movable girder, and arbitrary described suspention beam is additionally provided with horizontal mobile mechanism, and described mechanical hand connects described suspention beam by this horizontal mobile mechanism.
Further, described lowering or hoisting gear includes the drive mechanism of a plurality of tooth bar, gear composition, described tooth bar is vertically arranged and is uniformly fixed on described two columns, and described a plurality of gears are connected to the both ends of described movable girder, and described gear is driven by motor.Lowering or hoisting gear adopts tooth bar, gear drive, and is uniformly fixed on described two columns, makes operating steadily of movable girder.
Further, described lowering or hoisting gear also includes a plurality of eccentric guide wheel devices being evenly distributed on described movable girder both ends of correspondence, arbitrary described eccentric guide wheel device includes 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 is fixed on described movable girder and is locked by lock nut.The setting of eccentric guide wheel device can the even running of reinforcement activity girder further, but owing to movable girder is in the process run up and down, certain amount of deflection can be produced, make the position of guide wheel deviation guide rail, therefore eccentric shaft the fitness that can regulate guide wheel and guide rail is set, reducing the impact of amount of deflection, the operation making movable girder is more steady.
Further, arbitrary described column is made up of two discrete supporting legs, and described tooth bar, guide rail are located in the one side that two supporting legs are relative, makes the two ends of described movable girder be in the space between two supporting legs.The setting of supporting leg makes the two ends of movable girder be in the space between two supporting legs, and overall structure is more stable, it is easier to meet 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 guide wheel group of arbitrary described balance weight mechanism is all correspondingly arranged at the top of supporting leg described in, and described balancing weight is all correspondingly arranged at the inner space place of supporting leg described in.The setting of hollow leg, it is possible to make balance weight mechanism run in the space closed, safer.
Further, the guide wheel group of arbitrary described balance weight mechanism includes two leading wheels and an auxiliary guide wheel group, described hoist cable includes two main hoist cables and an insurance hoist cable, two leading wheels are correspondingly arranged at the both sides of auxiliary guide wheel group, each balancing weight hangs each through described two main hoist cables and is located on two leading wheels, and hung by described insurance hoist cable and to be located in auxiliary guide wheel group, the other end of described main hoist cable and insurance hoist cable is also connected with described movable girder, and the length of described insurance hoist cable is slightly larger than the length of two main hoist cables, make to bear pulling force less than two main hoist cables suffered by normal operating conditions insurance hoist cable.Auxiliary guide wheel group and insurance hoist cable realize the safety 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 the effect of supporting, balancing weight will not weightlessness drop, it is ensured that safety work, and owing to safety jaw length is more than main hoist cable, when one of one of two leading wheels or main hoist cable go wrong, balancing weight there will be the situation of inclination, is therefore easy to job site and finds that main hoist cable goes wrong in time, and changes in time.
Further, the length difference of described insurance hoist cable and main hoist cable naturalness, the combination being in main hoist cable and insurance hoist cable loads the 80%-95% of the counterweight produced elastic elongation amount of main hoist cable later.
The length difference of most preferred described insurance hoist cable and main hoist cable naturalness, is the 90% of main hoist cable and the produced elastic elongation amount combining loading counterweight main hoist cable later insuring hoist cable.
Further, arbitrary described balancing weight includes a main balancing weight and a plurality of secondary balancing weight, the described secondary dismountable mode of balancing weight is connected on main balancing weight, the weight summation of all main balancing weights equals to or slightly less than the weight of movable girder, the weight being significantly less weight than a main balancing weight of secondary balancing weight described in one.
Further, described two suspention beams are to be fixed on described movable girder by suspension apparatus, described suspension apparatus farther includes a fixing seat, a length adjustment bar, a swinging axle and a hangoff receptacle, described fixing seat is fixedly connected on described movable girder, and it is provided with vertical hanging hole, described length adjustment bar is from top to bottom through being articulated in described swinging axle after this vertical hanging hole, and described hangoff receptacle is also articulated in described swinging axle the described suspention beam of fixing connection.Described length adjustment bar includes a screw rod and two nuts, and wherein screw rod is arranged in the vertical hanging hole of described fixing seat, and described two nuts revolve respectively and are located on described screw rod, and lays respectively at outside the two ends up and down of vertical hanging hole.So, can pass through to rotate the effective length of wherein a nut and adjustable length adjustment bar, make suspension apparatus be in suitable height to compensate owing to movable main beam deformation is on two impacts suspending beam levelness in midair, reduce the amount of deflection requirement to movable girder.
Further, described suspention beam farther includes one by the end to end rectangular frame in long limit and 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, it is correspondingly arranged at 4 corners of rectangular frame respectively, and two suspension apparatus being in rectangular frame short side direction end connect formation one suspension by a bracing frame, described suspension also includes two suspension ring and two and connects seat, described two suspension ring are located at the top of bracing frame, described two connect the bottom that seat is located at the both ends of bracing frame, described suspension apparatus connects described movable girder by this connection seat.Suspention beam is the frame structure of rectangle hollow pipe, weight can be alleviated under the premise that intensity is enough, effectively to alleviate the pressure to movable girder, but the wider width because of frame structure, the increasing number of required suspension apparatus, two suspension apparatus being in rectangular frame short side direction end are connected formation one suspension by a bracing frame, forms entirety, be more beneficial for the balance and stability of frame structure.
Further, described horizontal mobile mechanism farther includes gear, horizontal rack, equipment mounting seat, horizontal guide rail and gliding mass, described gear is located in equipment mounting seat and is driven by a motor, described horizontal rack is located on described suspention beam and engages with gear, described horizontal guide rail is located on described suspention beam, and described gliding mass is located in described equipment mounting seat and can slide along described horizontal guide rail.Horizontal mobile mechanism is made up of the engagement of rack and pinion, add horizontal guide rail and gliding mass coordinate to increase impetus, the operation making mechanical hand is more steady, reliably.Described horizontal rack is located at described long limit and minor face surrounds an inner space place and connects described long limit, and described horizontal guide rail has two, is respectively provided at the bottom on a long limit of rectangular frame.Described horizontal mobile mechanism also includes a dust cover, described dust cover is the retractable dust cover of two-part, these two sections are connected between equipment mounting seat and the end of horizontal guide rail, and are coated with described horizontal guide rail and gliding mass, to prevent described horizontal guide rail and gliding mass from getting dirty and affecting and slide.
Further, described horizontal mobile mechanism also includes a plurality of buffer, is respectively arranged on described suspention beam two ends the stroke boundary corresponding to described equipment mounting seat.When described equipment mounting seat is run to stroke boundary can collision bumper, make jerk not impaired obtaining a cushion effect.
Further, the length of the length of the described suspention beam movable girder less than 1/2, but the length of the movable girder more than 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 mechanical hand.
Further, described top-pushing mechanism includes a pushing tow screw rod and a pushing tow female thread, and described pushing tow female thread is located in adjustment seat, and one end of described pushing tow screw rod is resisted in described tie-beam, and other end rotation is located in this pushing tow female thread；Described retaining mechanism includes a clamping screw or screw rod and a locking nut, one end of described clamping screw or screw rod is fixing to be connected on described tie-beam, the other end is locked by described locking nut after wearing described adjustment seat, makes pushing tow screw rod, tie-beam, adjustment seat form pretension relation.
Further, one end of described pushing tow screw rod is also fixing connects a cylinder push block, and the outside dimension of this cylinder push block is more 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 end plate, described adjustment seat is L-type, reinforcement triangular plate including a riser, transverse sheet and a plurality of rectangular three shapes, described riser stands in the end of described tie-beam and arranges parallel with described end plate, and transverse sheet is fixing connects described column, and two right-angle sides of described a plurality of reinforcement triangular plates connect described riser and transverse sheet, described top-pushing mechanism and described retaining mechanism are multiple, and are arranged in by matrix structure on described end plate and riser.
Present invention have the advantage that the large-sized gantry frame of the present invention, meet span and the demand of height, movable girder can be made to run laborsaving by two balance weight mechanisms, steadily, the structure that can be regulated two columns and tie-beam composition by tie-beam governor motion is more stable, suspend beam in midair by two and can strengthen the bending resistance degree of movable girder, keep the straight of horizontal mobile mechanism, be beneficial to the smooth and easy movement of mechanical hand.
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, and what wherein show activity girder is in high-order and two location status of low level.
Fig. 1 a is the magnifying state schematic diagram of lowering or hoisting gear 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 governor motion of large-sized gantry frame of the present invention.
Fig. 4 a is the plan structure schematic diagram of the tie-beam governor motion of large-sized gantry frame of the present invention.
Fig. 4 b is the theory structure schematic diagram of the tie-beam governor motion 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 the main TV structure schematic diagram of half section of the left side of activity girder of the present invention and 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 in the present invention suspention beam 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, the large-sized gantry frame 100 of the present invention, including the movable girder 3 of two row rail 11, two chassis 12, two columns 2, one and a tie-beam 4；Described two columns 2 are respectively provided on a chassis 12, and described two chassis 12 are respectively erected on row rail 11 described in one and can move along described row rail 11；The two ends of described movable girder 3 are respectively erected on column 2 described in one and connect a lowering or hoisting gear 5, and the upper end of described two columns 2 is connected by described tie-beam 4；Wherein: also include at least two balance weight mechanism 6, tie-beam governor motions 7 and the two suspention beams 8 for solid mechanical hands 200；
Main as shown in Fig. 5 and Fig. 5 a, arbitrary described balance weight mechanism 6 includes guide wheel group 61, hoist cable 62 and balancing weight 63, described guide wheel group 61 is fixed on the top of described column 2, and described hoist cable 62 is around being located in guide wheel group 61 and two ends connect balancing weight 63 and movable girder 4 respectively；The weight of all of balancing weight 63 needs about close with the weight of activity girder 4 and two suspention beams 8 of solid mechanical hands 200, so that the similar weight that hoist cable 62 two ends are subject to, the upper length being beneficial to movable girder 4 at the uniform velocity safe rises or decline；
Main as shown in Fig. 4 to Fig. 4 b, described tie-beam governor motion 7 includes at least one top-pushing mechanism 71, at least one retaining mechanism 72 and an adjustment seat 73, described adjustment seat 73 be fixed on column 2 described in top and and described tie-beam 4 end between form a gap 74, described top-pushing mechanism 71 be located in this gap 74 and adjustable length resist respectively in described tie-beam 4 end and adjustment seat 73, described adjustment seat 73 is lock onto on described tie-beam 4 by described retaining mechanism 72.
In preferred embodiment, described top-pushing mechanism 71 includes pushing tow screw rod 711 and a pushing tow female thread 712, described pushing tow female 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 other end rotation is located in this pushing tow female thread 712；Described retaining mechanism 72 includes a clamping screw or screw rod 721 and a locking nut 722, one end of described clamping screw or screw rod 721 is fixing to be connected on described tie-beam 4, the other end is locked by described locking nut 722 after wearing described adjustment seat 73, makes 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 fixing connects a cylinder push block 713, and the outside dimension of this cylinder push block 713 is more 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 end plate 41, described adjustment seat 73 is L-type, reinforcement triangular plate 733 including 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 parallel with described end plate 41, transverse sheet 732 is fixing connects described column 2, two right-angle sides of described a plurality of reinforcement triangular plate 733 connect described riser 731 and transverse sheet 732, described top-pushing mechanism 71 and described retaining mechanism 72 are multiple, and are arranged in by matrix structure on described end plate 41 and riser 731.
The operation principle of described tie-beam governor motion 7 is: screw in the degree of depth of pushing tow female thread 712 by adjusting pushing tow screw rod 711 when locking nut 722 is not locked, to adapt to the distance between two columns 2, afterwards by screwing locking nut 722, connect on described tie-beam 4 owing to one end of clamping screw or screw rod 712 is fixing, the other end is locked by described locking nut 722 after wearing described adjustment seat 73, thus forming stable stress balance with top-pushing mechanism 71.
Mainly as depicted in figs. 1 and 2, described lowering or hoisting gear 5 includes the drive mechanism of a plurality of tooth bar 51, gear 52 composition, described tooth bar 51 is vertically arranged and is uniformly 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.Lowering or hoisting gear 5 adopts the drive mechanism that tooth bar 51, gear 52 form, and is uniformly fixed on described two columns 2, can make operating steadily of movable girder 3.
Described lowering or hoisting gear 5 also includes a plurality of eccentric guide wheel devices 53 being evenly distributed on described movable girder 3 both ends of correspondence, arbitrary described eccentric guide wheel device 53 includes 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 is fixed on described movable girder 3 and is locked by lock nut 535.The setting of eccentric guide wheel device 53 can the even running of reinforcement activity girder 3 further, but owing to 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 deviate the position of guide rail 531, therefore eccentric shaft 533 the fitness that can regulate guide wheel 532 and guide rail 531 is set, reducing the impact of amount of deflection, the operation making movable girder 3 is more steady.
In the embodiment in relatively happy festival time, arbitrary described column 2 is made up of two discrete supporting legs 22, and the tooth bar 51 in described lowering or hoisting gear 5, guide rail 531 are located in the one side that two supporting legs 22 are relative, makes the two ends of described movable girder 3 be in the space between two supporting legs 22.The setting of supporting leg 22 makes the two ends of movable girder 3 be in the space between two supporting legs 22, and overall structure is more stable, it is easier to meet 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 guide wheel group 61 of arbitrary described balance weight mechanism 6 is all correspondingly arranged at the top of supporting leg 22 described in, and described balancing weight 6 is all correspondingly arranged at the inner space place of supporting leg 22 described in.The setting of hollow leg, it is possible to 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 includes two leading wheels 611 and auxiliary guide wheel group 612, described hoist cable 62 includes two main hoist cable 621 and insurance hoist cables 622, two leading wheels 611 are correspondingly arranged at the both sides of auxiliary guide wheel group 612, the balancing weight 63 of each described balance weight mechanism hangs each through hoist cable 621 main described in two and is located on two leading wheels 611, and hung by described insurance hoist cable 622 and to be located in auxiliary guide wheel group 612, and the other end of described two main hoist cables 621 and insurance hoist cable 622 is also connected with described movable girder 3.This auxiliary guide wheel group 612 and insurance hoist cable 622 realize the safety 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 the effect of supporting, and balancing weight 63 will not weightlessness drop, it is ensured that safety work.And owing to safety jaw length is more than main hoist cable, when one of one of two leading wheels or main hoist cable go wrong, balancing weight there will be the situation of inclination, is therefore easy to job site and finds that main hoist cable goes wrong in time, and changes in time.
The length difference of described insurance hoist cable 622 and main hoist cable 621 naturalness, the combination being in main hoist cable 621 and insurance hoist cable 622 loads the 80%-95% of the counterweight produced elastic elongation amount of main hoist cable 621 later, and wherein most preferably point value is 90%.
This is that the deformation quantity of object is directly proportional with the external force causing deformation owing to main hoist cable 621 and insurance hoist cable 622 are in elastic deformation and meet Hooke's law namely in elastic limit.Insurance hoist cable 622 length is more than main hoist cable 621 length, load the deflection deflection less than main hoist cable 621 insuring hoist cable 622 when counterweight produces, therefore the stress suffered by insurance hoist cable 622 can be made in normal operation less than main hoist cable 621, insurance hoist cable 622 should be at tensioning state and avoids getting loose simultaneously, to be ready to, at main hoist cable 621, bigger pulling force occurs to bear in unexpected situation.Our experiments show that, it is preferred that the combination being in main hoist cable 621 and insurance hoist cable 622 loads the 80%-95% of the counterweight produced elastic elongation amount of main hoist cable 621 later, and the best is 90%.
Wherein, in order to be fitted on suitable weight, arbitrary described balancing weight 63 can include a main balancing weight and a plurality of secondary balancing weight, the described secondary dismountable mode of balancing weight is connected on main balancing weight, the weight summation of all main balancing weights equals to or slightly less than the weight of movable girder 3, the weight being significantly less weight than a main balancing weight of secondary balancing weight described in one.So, secondary balancing weight can play the effect of 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 one end is arranged close to the center of described movable girder 3, being additionally provided with horizontal mobile mechanism 82 on arbitrary described suspention beam 8, described mechanical hand 200 connects described suspention beam 8 by this horizontal mobile mechanism 82.
In the embodiment in relatively happy festival time, described two suspention beams 8 are to be fixed on described movable girder 3 by suspension apparatus 91, described suspension apparatus 91 farther includes fixing seat 911, length adjustment bar 912, swinging axle 913 and a hangoff receptacle 914, described fixing seat 911 is fixedly connected on described movable girder 3, and it is provided with vertical hanging hole 9112, described length adjustment bar 912 is from top to bottom through being articulated in described swinging axle 913 after this vertical hanging hole 9112, and described hangoff receptacle 914 is also articulated in described swinging axle 913 the described suspention beam 8 of fixing connection.Described length adjustment bar 912 includes screw rod 9121 and two nuts 9122, wherein screw rod 9121 is arranged in the vertical hanging hole 9112 of described fixing seat 911, described two nuts 9122 revolve respectively and are located on described screw rod 9121, and lay respectively at outside the two ends up and down of vertical hanging hole 9112.So, can pass through to rotate a wherein nut 9122 i.e. effective length of adjustable length adjustment bar 912, make suspension apparatus 91 be in suitable height to compensate owing to movable girder 3 deforms two impacts suspending beam 8 levelness in midair, reduce the amount of deflection requirement to movable girder 3；Simultaneously by adopting the mounting means of hangoff receptacle-swinging axle to define the installation relation of hinged suspension, eliminate the stress produced owing to movable girder 3 deformation makes fixing seat 911 installed surface not parallel with hangoff receptacle 914 installed surface.
Described suspention beam 8 farther includes one by the end to end rectangular frame in long limit 801 and 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, it is correspondingly arranged at 4 corners of rectangular frame respectively, and two suspension apparatus 91 being in rectangular frame short side direction end connect formation one suspension 9 by a bracing frame 92, described suspension 9 also includes two suspension ring 93 and two and connects seat 94, described two suspension ring 93 are located at the top of bracing frame 92, described two connect the bottom that seat 94 is located at the both ends of bracing frame 92, described suspension apparatus 91 connects described movable girder by this connection seat 94.Suspention beam 8 is the frame structure of rectangle hollow pipe, weight can be alleviated under the premise that intensity is enough, effectively to alleviate the pressure to movable girder 3, but the wider width because of frame structure, the increasing number of required suspension apparatus 91, two suspension apparatus 91 being in rectangular frame short side direction end are connected formation one suspension 9 by a bracing frame 92, forms entirety, be more beneficial for the balance and stability of frame structure.
Described horizontal mobile mechanism 82 farther includes gear 821, horizontal rack 822, equipment mounting seat 823, horizontal guide rail 824 and gliding mass 825, described gear 821 is located in equipment mounting seat 823 and is driven by a motor 828, namely mechanical hand 200 equipment such as grade be arranged in equipment mounting seat 823, described horizontal rack 822 is located on described suspention beam 82 and engages with gear 821, described horizontal guide rail 824 is located on described suspention beam 82, and described gliding mass 825 is located in described equipment mounting seat 823 and can slide along described horizontal guide rail 824.Horizontal mobile mechanism 82 is made up of the engagement of rack and pinion, add horizontal guide rail and gliding mass coordinate to increase impetus, the operation making mechanical hand 200 is more steady, reliably.Described horizontal rack 822 is located at described long limit 801 and minor face 802 surrounds inner space 803 place and connects described long limit 801, and described horizontal guide rail 824 has two, is respectively provided at the bottom on a long limit 801 of rectangular frame.Described horizontal mobile mechanism 82 also includes a dust cover 826, described dust cover 826 is the retractable dust cover of two-part, these two sections are connected between the end of equipment mounting seat 823 and horizontal guide rail 824, and it is coated with described horizontal guide rail 824 and gliding mass 825, to prevent described horizontal guide rail 824 and gliding mass 825 from getting dirty and affecting and slide.
Described horizontal mobile mechanism 82 also includes a plurality of buffer 827, is respectively arranged on described suspention beam 82 two ends the stroke boundary corresponding to described equipment mounting seat 823.When described equipment mounting seat 823 is run to stroke boundary can collision bumper 827, make jerk not impaired obtaining a cushion effect.
Mainly as shown in Figure 6, the length of the length of the described suspention beam 8 movable girder 3 less than 1/2, but the length of the movable girder 3 more than 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 mechanical hand 200.
In sum, the large-sized gantry frame of the present invention, meet span and the demand of height, movable girder can be made to run laborsaving by two balance weight mechanisms, steadily, the structure that can be regulated two columns and tie-beam composition by tie-beam governor motion is more stable, suspends beam in midair by two and can strengthen the bending resistance degree of movable girder, keep the straight of horizontal mobile mechanism, be beneficial to the smooth and easy movement of mechanical hand.
Although the foregoing describing the specific embodiment of the present invention; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to the scope of the present invention; those of ordinary skill in the art, in the equivalent modification made according to the spirit of the present invention and change, should be encompassed in the scope of the claimed protection of the present invention.
Claims (16)
1. a large-sized gantry frame, including two row rails, two chassis, two columns, movable girder and a tie-beam；Described two columns are respectively provided on a chassis, and described two chassis are respectively erected on row rail described in one and can move along described row rail；The two ends of described movable girder are respectively erected on column described in one and connect a lowering or hoisting gear, and the upper end of described two columns is connected by described tie-beam；It is characterized in that: also include at least two balance weight mechanisms, a tie-beam governor motion and the two suspention beams for solid mechanical hands；
Arbitrary described balance weight mechanism includes guide wheel group, hoist cable and balancing weight, and described guide wheel group is fixed on the top of described column, and described hoist cable is around being located in guide wheel group and two ends connect balancing weight and movable girder respectively；
Described tie-beam governor motion includes at least one top-pushing mechanism, at least one retaining mechanism and an adjustment seat, described adjustment seat be fixed on column described in top and and described tie-beam end between form a gap, described top-pushing mechanism be located in this gap and adjustable length resist respectively in described tie-beam end and adjustment seat, described adjustment seat is lock onto on described tie-beam by described retaining mechanism；
Described two suspention beams are fixed on described movable girder symmetrically, and one end is close to the center setting of described movable girder, and arbitrary described suspention beam is additionally provided with horizontal mobile mechanism, and described mechanical hand connects described suspention beam by this horizontal mobile mechanism.
2. large-sized gantry frame according to claim 1, it is characterized in that: described lowering or hoisting gear includes the drive mechanism of a plurality of tooth bar, gear composition, described tooth bar is vertically arranged and is uniformly 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 lowering or hoisting gear also includes a plurality of eccentric guide wheel devices being evenly distributed on described movable girder both ends of correspondence, arbitrary described eccentric guide wheel device includes 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 is fixed on described movable girder and is 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 one side that two supporting legs are relative, 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 guide wheel group of arbitrary described balance weight mechanism is all correspondingly arranged at the top of supporting leg described in, and described balancing weight is all correspondingly arranged 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 includes two leading wheels and an auxiliary guide wheel group, described hoist cable includes two main hoist cables and an insurance hoist cable, two leading wheels are correspondingly arranged at the both sides of auxiliary guide wheel group, each balancing weight hangs each through described two main hoist cables and is located on two leading wheels, and hung by described insurance hoist cable and to be located in auxiliary guide wheel group, the other end of described main hoist cable and insurance hoist cable is also connected with described movable girder, and the length of described insurance hoist cable is slightly larger than the length of two main hoist cables, make to bear pulling force less than two main hoist cables suffered by normal operating conditions insurance hoist cable.
6. large-sized gantry frame according to claim 5, it is characterised in that: the length difference of described insurance hoist cable and main hoist cable naturalness, the combination being in main hoist cable and insurance hoist cable loads the 80%-95% of the counterweight produced elastic elongation amount of main hoist cable later.
7. large-sized gantry frame according to claim 1, it is characterized in that: arbitrary described balancing weight includes a main balancing weight and a plurality of secondary balancing weight, the described secondary dismountable mode of balancing weight is connected on main balancing weight, the weight summation of all main balancing weights equals to or slightly less than the weight of movable girder, the weight being significantly less weight than a main balancing weight of secondary balancing weight described in one.
8. large-sized gantry frame according to claim 1, it is characterized in that: described two suspention beams are to be fixed on described movable girder by suspension apparatus, described suspension apparatus farther includes a fixing seat, a length adjustment bar, a swinging axle and a hangoff receptacle, described fixing seat is fixedly connected on described movable girder, and it is provided with vertical hanging hole, described length adjustment bar is from top to bottom through being articulated in described swinging axle after this vertical hanging hole, and described hangoff receptacle is also articulated in described swinging axle the described suspention beam of fixing connection.
9. large-sized gantry frame according to claim 8, it is characterized in that: described length adjustment bar includes a screw rod and two nuts, wherein screw rod is arranged in the vertical hanging hole of described fixing seat, and described two nuts revolve respectively and are located on described screw rod, and lays respectively at outside the two ends up and down of vertical hanging hole.
10. large-sized gantry frame according to claim 9, it is characterised in that: the length of the length of the described suspention beam movable girder less than 1/2, but the length of the movable girder more than 1/4；Described suspention beam farther includes one by the end to end rectangular frame in long limit and 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, it is correspondingly arranged at 4 corners of rectangular frame respectively, and two suspension apparatus being in rectangular frame short side direction end connect formation one suspension by a bracing frame, described suspension also includes two suspension ring and two and connects seat, described two suspension ring are located at the top of bracing frame, described two connect the bottom that seat is located at the both ends of bracing frame, described suspension apparatus connects described movable girder by this connection seat.
11. large-sized gantry frame as claimed in claim 10, it is characterized in that: described horizontal mobile mechanism farther includes gear, horizontal rack, equipment mounting seat, horizontal guide rail and gliding mass, described gear is located in equipment mounting seat and is driven by a motor, described horizontal rack is located on described suspention beam and engages with gear, described horizontal guide rail is located on described suspention beam, and described gliding mass is located in described equipment mounting seat and can slide along described horizontal guide rail.
12. large-sized gantry frame as claimed in claim 11, it is characterised in that: described horizontal rack is located at described long limit and minor face surrounds an inner space place and connects described long limit, and described horizontal guide rail has two, is respectively provided at the bottom on two long limits of rectangular frame.
13. large-sized gantry frame as claimed in claim 11, it is characterized in that: described horizontal mobile mechanism also includes a dust cover, described dust cover is the retractable dust cover of two-part, and these two sections are connected between equipment mounting seat and the end of horizontal guide rail, and are coated with described horizontal guide rail and gliding mass；Described horizontal mobile mechanism also includes a plurality of buffer, is respectively arranged on described suspention beam two ends the stroke boundary corresponding to described equipment mounting seat.
14. large-sized gantry frame as claimed in claim 1, it is characterized in that: described top-pushing mechanism includes a pushing tow screw rod and a pushing tow female thread, described pushing tow female thread is located in adjustment seat, and one end of described pushing tow screw rod is resisted in described tie-beam, and other end rotation is located in this pushing tow female thread；Described retaining mechanism includes a clamping screw or screw rod and a locking nut, one end of described clamping screw or screw rod is fixing to be connected on described tie-beam, the other end is locked by described locking nut after wearing described adjustment seat, makes pushing tow screw rod, tie-beam, adjustment seat form pretension relation.
15. large-sized gantry frame as claimed in claim 14, it is characterised in that: one end of described pushing tow screw rod is also fixing connects a cylinder push block, and the outside dimension of this cylinder push block is more than the outside dimension of pushing tow screw rod, and resists in described tie-beam.
16. the large-sized gantry frame as described in claims 14 or 15, it is characterized in that: the end of described tie-beam is provided with end plate, described adjustment seat is L-type, reinforcement triangular plate including a riser, transverse sheet and a plurality of rectangular three shapes, described riser stands in the end of described tie-beam and arranges parallel with described end plate, transverse sheet is fixing connects described column, two right-angle sides of described a plurality of reinforcement triangular plate connect described riser and transverse sheet, described top-pushing mechanism and described retaining mechanism are multiple, and are arranged in by matrix structure on described end plate and riser.
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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 CN104370209A (en) | 2015-02-25 |
| CN104370209B true CN104370209B (en) | 2016-07-06 |
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| CN105239780B (en) * | 2015-11-05 | 2017-06-16 | 辽宁格林普建筑打印科技有限公司 | Architectural engineering wall 3D printer system |
| CN107640577A (en) * | 2016-01-18 | 2018-01-30 | 蔡留凤 | A kind of shaped steel clamps handling device and its method of work automatically |
| CN107553687B (en) * | 2017-09-11 | 2019-07-02 | 李尚明 | The house 3D printer |
| CN109573852B (en) * | 2018-12-29 | 2020-06-09 | 三一海洋重工有限公司 | Crane with rigid guide lifting function |
| 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 |
| CN112520569B (en) * | 2020-10-30 | 2022-05-27 | 贺州市新伟业粉体有限公司 | Calcium carbonate powder loading device |
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