CN206172832U - Dolly chain drive's semi portal hoist - Google Patents

Abstract

The application discloses dolly chain drive's semi portal hoist, including the semi portal, the semi portal comprises an end beam, two girders, a supporting leg rack, be equipped with hand power cart running device on the semi portal, article two, the girder top all is equipped with down " U " shape track, article two, connect an operation dolly between the track, the operation dolly is equipped with chain drive device, operation dolly central authorities are equipped with rotary mechanism, jib axle among the rotary mechanism can rotate, and its lower extreme is connected with cantilever member, the last hand power sports car of connecting of cantilever member, be equipped with the drive chain chain and sprocket on the hand power sports car, the hand power sports car can be along the track back and forth movement on the cantilever beam, hang hand power chain hoist under the hand power sports car, the cantilever beam is in article two, the girder below can rotate, the cantilever beam can stretch out operation outside the workshop.

Description

A kind of dolly chain-drive semi portal crane

Technical field

The application is related to crane field, more particularly to a kind of dolly chain-drive semi portal crane.

Background technology

Existing bridge crane is applied in Workshop, and the product and raw material in workshop are required for Real-Time Transport to next door Workshop or other departments；The suspension hook of the crane on workshop is hung from dolly carries out lifting goods, and dolly can only be along Crane twin beams runs back and forth, and crane can only back and forth run along the cart track on the end bay post of workshop two, such crane The goods scope that suspension hook can be lifted is in this plane within the plane that the two-end-point of the two cart tracks in workshop is surrounded When the goods at edge needs lifting, suspension hook just produces oblique pull, then outside this plane far point article (as workshop outdoors, across Cannot lift outward), now generally workshop can only be driven into by automobile and hung under suspension hook by other transporting equipment transhipments Loading thing, some cars are opened to come in and track are just laterally laid between this workshop and next door workshop, allow trolley special to reach and hang Hook gets off and joins goods, and what is had sets up a special cantilever crane in workshop doorway (or workshop passageway), to the goods outside workshop Scheduling is transported through, first goods is lifted up into where this workshop crane suspension hook gets at, then again by crane this Goods handling can not directly join to other stations of workshop, the existing bridge crane used under this operating mode with next door workshop Goods, must bring quite inconvenience by other transporting equipment schedule jobs, also produce manpower and materials and waste；Some grains having Crane used by warehouse and industrial explosion-proof workshop article hoisting requires electrically there is explosion prevention function, needs fire-proof motor, explosion-proof Electric block cost is very high, and particularly tonnage is little, using the not high place of working level, using anti-explosion electric lifting speculative investment Greatly, maintenance cost is high；Workshop also does not provide electric power, and by fork truck or manpower Articles transfer is carried out, and labour intensity is excessive.

The content of the invention

The application purpose is to provide a kind of dolly chain-drive semi portal crane, and the crane can not have Under electric power environmental using or mustn't use under the explosion-proof environment using electrical equipment；The crane not only can be made in this workshop Industry, moreover it is possible to which directly below this workshop of unloading, across the goods in outer next door place, also can run rail in cart by cart support rail beam This workshop in road direction direct unloading goods in place outdoors, it is not necessary to by other transporting equipments transhipments, improve efficiency.

To reach above-mentioned purpose, the application is realized using following technology：

A kind of dolly chain-drive semi portal crane, including semi portal 28, the semi portal is by an end carriage 1, two 2, supporting rack 100 of bar girder is constituted, the connection end carriage 1 of two girders one, other end connection leg frame 100；It is described Include grade beam 101 on supporting rack；It is characterized in that：Described semi portal 28 is provided with and pulls cart running gear 8；Two masters The top of beam 2 is designed with inverted " u "-shaped track 21, and track opening towards girder inner side；Connect a fortune between two tracks 21 Row dolly 3；Wheel 31 on the running trolley is bushing to be run on the track；The running trolley is provided with chain drive dress Put 7；The running trolley central authorities are provided with rotating mechanism 4；Suspension rod axle 42 in the rotating mechanism is rotatable, its lower end and cantilever Component 5 connects；It is connected to pull sport car 6 on the cantilever member；The sport car that pulls is provided with drive chain 61 and sprocket wheel；Institute State and pull sport car and can move back and forth along the track on cantilever beam 51；It is described pull under sport car hang pull ring-chain hoist 200；Institute Cantilever beam is stated in two girders lower section and can be rotated；The cantilever beam can stretch out operation outside workshop.

Wherein, described chain drive 7 include two roller chains, 71, two sprocket wheel A72, two sprocket wheel B73, two 74, chain pulley 75 of strainer；The end A 711 of the roller chain 71 is fixed on the side of running trolley 3, the rolling Subchain is wrapped over after above-mentioned sprocket wheel A72 and winds sprocket wheel B73 again, and it is little that the another side termination B712 of the roller chain 71 is fixed on operation The opposite side of car 3；The roller chain has bracket 76, and the bracket is fixed on the inner side of girder 2；Above-mentioned sprocket wheel A72 is connected to On strainer 74；Two studs 741 and bearing 742 are provided with the strainer, the bearing is fixed on end carriage 1； Above-mentioned two sprocket wheel B73 is connected on power transmission shaft 77；The power transmission shaft is fixed on girder by bearing block；The power transmission shaft Gear wheel 78 is also connected with, the gear wheel is connected with the engagement of little gear 79；The little gear is by connecting shaft and above-mentioned chain Pulley 75 connects；Connect the pitch chain 710 of a closed at both ends on the chain pulley.

Wherein, the described cart running gear 8 that pulls includes driving wheel A80, driving wheel B82, follower 81, bangle wheel 83rd, endless chain 84, two followers 81 are separately mounted to one end of end carriage 1 and grade beam 101；Described driving wheel A80 peaces It is mounted in the other end of the grade beam；Described driving wheel B82 is arranged on the other end of the end carriage；The side of the driving wheel B Wheel rim is provided with gear；The driving wheel B is connected with the external toothing of gear shaft 85；The gear shaft is by power transmission shaft A86 and bangle Take turns 83 one side to couple together；The bangle wheel is connected on bracing frame 87 by bearing block, and support frame as described above is fixed on the side of girder 2 On face；The another side of the bangle wheel 83 connects minor sprocket 89 by power transmission shaft B88；The minor sprocket by roller chain 810 with Big sprocket wheel 811 connects；The big sprocket wheel is connected on the wheel shaft of above-mentioned driving wheel A80；Above-mentioned bangle wheel 83 connects one two The endless chain 84 that end seal is closed.

Wherein, described cantilever member 5 is connected on the suspension rod axle 42 of rotating mechanism by flat key 49 and stop nut 9； The lower end of suspension rod axle 42 is provided through the through hole 422 of diameter；Described stop nut and suspension rod axle is connected again with bolt 99 Come, and the bolt 99 is through stop nut and the diameter of suspension rod axle.

Wherein, described stop nut 9 is cylindric, and its center is provided with screw thread 91, and described stop nut external diameter is opened up One through hole 92, also opens up multiple blind holes 93 for inserting lever and conveniently pulls nut on described stop nut external diameter.

The beneficial effect of the application is：

The crane of the application can mustn't be used under without electric power environmental or under the explosion-proof environment using electrical equipment, It is novel reliable；Because the cantilever beam of the application is arranged at girder lower section, and running trolley can back and forth run above girder, So, the crane of the application not only can with the next door workshop goods of unloading cart traffic direction end points, and can unloading it is big The goods in car running track line side workshop；The lifting or decentralization goods for pulling ring-chain hoist (200) is relied on and pulls chain (201) Pulling function operated；By pulling the drive chain (61) pulled on sport car (6), the sprocket wheel pulled on sport car is drive And vehicle wheel rotation, pull sport car and move back and forth along cantilever beam orbit so as to drive；The drive chain in sport car is pulled by oblique pull In bar (61) or oblique pull hand draw ring chain block pull chain (201) can make cantilever beam rotate and can random angle rotation；Pass through The chain (84) that pulling is pulled in cart running gear can drive whole crane to run back and forth along train track；Can pass through upper The integrated motion stated, such as cart run, and cantilever beam is rotated, and pull sport car motion, ring-chain hoist hook lifting, running trolley fortune It is dynamic, just can object by pull driving from outdoors or the handling of next door workshop to workshop domestic demand will place, with workshop surrounding Next door workshop or workshop carry out that the transhipment of other transporting equipments can be borrowed when goods joins outdoors, and convenient working, reduction sets Standby investment is cost-effective.

The crane of the application be suitable for workshop only have on the metope column of one side set up bracket lay track, another side uses The environment of workshop track；Wheel runs on column track on end carriage in crane semi portal, and the wheel on grade beam is in workshop Run in track.

The application pulls the speed of driving wheel B and gear shaft (85) on end carriage in cart running gear (8) and compares and master on grade beam The big sprocket wheel (811) of driving wheel A connections is more identical than being designed to the speed of minor sprocket (89), is so manually pulling endless chain (84) When, so that it may bangle wheel (83) rotation is drive, so as to drive driving wheel A, the operation of driving wheel B synchronous same-speeds；If unnecessary Staff, it is also possible to which boosting supporting rack operation, reduces the pulling force for pulling endless chain, and crane operation is convenient.

The cantilever beam of the application crane also can reach next door workshop unloading goods from the middle of supporting rack (100).

Under artificial pulling chain (710) effect, running trolley can run running trolley along girder two ends in the application, Suitable large span workshop operation；Chain drive, stable non-slip efficiency high.

The chain drive (7) of trolley travelling arranges two sets of roller chains in the application, it is also possible to use a set of roller chain Bar but not as two sets it is stable；Strainer (74) in chain drive is provided with two studs (741) and bearing screw thread connects Connect, two stud positions are stablized, and sprocket wheel does not overturn；The elastic of chain can be adjusted by the nut in regulation stud；Under chain Bracket be avoided that chain is seriously sagging；A pair large and small gear drives are set in chain drive, decelerating effect is played, can be subtracted Light pulling force, is especially suitable for the big running trolley of tonnage.

Track above the application middle girder adopts inverted " u "-shaped track, and the wheel of running trolley is bushing to be run in orbit, This spline structure can effectively play anti-roll-over action to running trolley.

After the application cantilever member is connected with suspension rod axle, then connected by stop nut and suspension rod axle thread, and have bolt (99) diameter through stop nut and suspension rod axle is coupled together, it is to avoid stop nut loosens, safe and reliable, on stop nut Blind hole can facilitate lever to insert, and pull nut easily, easy disassembly and maintenance.

Description of the drawings

Fig. 1 is the application structural front view；

Fig. 2 is the side view of Fig. 1；

Fig. 3 is the top view of Fig. 1；

Fig. 4 is F partial enlarged drawings in Fig. 1；

Fig. 5 is stop nut structural representation in the application.

Specific embodiment

In conjunction with accompanying drawing in detail, the application specific embodiment is described in detail：

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of dolly chain-drive semi portal crane, including semi portal 28, described half Door frame is made up of a supporting rack 100 of girder 2, of end carriage 1, two, two girders, one connection end carriage 1, other end Connection leg frame 100；Include grade beam 101 on the supporting rack；It is characterized in that：Described semi portal 28 is provided with and pulls cart fortune Luggage puts 8；The top of two girders 2 is designed with inverted " u "-shaped track 21, and track opening towards girder inner side；Two rails Connect a running trolley 3 between road 21；Wheel 31 on the running trolley is bushing to be run on the track；The operation Dolly is provided with chain drive 7；The running trolley central authorities are provided with rotating mechanism 4；Suspension rod axle 42 in the rotating mechanism Rotatable, its lower end is connected with cantilever member 5；It is connected to pull sport car 6 on the cantilever member；The sport car that pulls is provided with Drive chain 61 and sprocket wheel；The sport car that pulls can be moved back and forth along the track on cantilever beam 51；Described pulling hang under sport car Extension pulls ring-chain hoist 200；The cantilever beam is in two girders lower section and can rotate；The cantilever beam can stretch out workshop Outer operation.

Described chain drive 7 includes two roller chains, 71, two sprocket wheel A72, two sprocket wheel B73, two tensionings 74, chain pulley 75 of mechanism；The end A 711 of the roller chain 71 is fixed on the side of running trolley 3, the roller chain It is wrapped over after above-mentioned sprocket wheel A72 and winds sprocket wheel B73 again, the another side termination B712 of the roller chain 71 is fixed on running trolley 3 Opposite side；The roller chain has bracket 76, and the bracket is fixed on the inner side of girder 2；Above-mentioned sprocket wheel A72 is connected to tensioning In mechanism 74；Two studs 741 and bearing 742 are provided with the strainer, the bearing is fixed on end carriage 1；It is above-mentioned Two sprocket wheel B73 are connected on power transmission shaft 77；The power transmission shaft is fixed on girder by bearing block；The power transmission shaft also connects Gear wheel 78 is connect, the gear wheel is connected with the engagement of little gear 79；The little gear is by connecting shaft and above-mentioned chain pulley 75 connections；Connect the pitch chain 710 of a closed at both ends on the chain pulley.

Described pulls cart running gear 8 including driving wheel A80, driving wheel B82, follower 81, bangle wheel 83, annular Chain 84, two followers 81 are separately mounted to one end of end carriage 1 and grade beam 101；Described driving wheel A80 is arranged on described The other end of grade beam；Described driving wheel B82 is arranged on the other end of the end carriage；Set in one side flange of the driving wheel B There is gear；The driving wheel B is connected with the external toothing of gear shaft 85；The gear shaft is by power transmission shaft A86 and the one side of bangle wheel 83 Couple together；The bangle wheel is connected on bracing frame 87 by bearing block, and support frame as described above is fixed on the side of girder 2；Institute The another side for stating bangle wheel 83 connects minor sprocket 89 by power transmission shaft B88；The minor sprocket is by roller chain 810 and big sprocket wheel 811 connections；The big sprocket wheel is connected on the wheel shaft of above-mentioned driving wheel A80；Above-mentioned bangle wheel 83 connects a closed at both ends Endless chain 84.

As shown in figure 4, described cantilever member 5 is connected to the suspension rod axle of rotating mechanism by flat key 49 and stop nut 9 On 42；The lower end of suspension rod axle 42 is provided through the through hole 422 of diameter；Described stop nut and suspension rod axle is connected again with bolt 99 Pick up and, and the bolt 99 is through stop nut and the diameter of suspension rod axle.

As shown in figure 5, described stop nut 9 is cylindric, its center is provided with screw thread 91, described stop nut external diameter A through hole 92 is opened up, multiple blind holes 93 is also opened up on described stop nut external diameter for inserting lever and is conveniently pulled nut.

Claims (5)

1. a kind of dolly chain-drive semi portal crane, including semi portal (28), the semi portal by an end carriage (1), Two girders (2), supporting rack (100) compositions, two girders, one connection end carriage (1), other end connection leg frame (100)；Include grade beam (101) on the supporting rack；It is characterized in that：Described semi portal (28) is provided with and pulls cart operation dress Put (8)；Two girders (2) top is designed with inverted " u "-shaped track (21), and track opening towards girder inner side；Described in two Connect a running trolley (3) between track (21)；Wheel (31) on the running trolley is bushing to be run on the track； The running trolley is provided with chain drive (7)；The running trolley central authorities are provided with rotating mechanism (4)；The rotating mechanism In suspension rod axle (42) it is rotatable, its lower end is connected with cantilever member (5)；It is connected to pull sport car (6) on the cantilever member； The sport car that pulls is provided with drive chain (61) and sprocket wheel；The sport car that pulls can be along the track on cantilever beam (51) back and forth Motion；It is described pull under sport car hang pull ring-chain hoist (200)；The cantilever beam is in two girders lower section and can revolve Turn；The cantilever beam can stretch out operation outside workshop.

2. a kind of dolly chain-drive semi portal crane according to claim 1, it is characterised in that：Described chain Driving means (7) including two roller chains (71), two sprocket wheel A (72), two sprocket wheel B (73), two strainers (74), one Individual chain pulley (75)；The end A (711) of the roller chain (71) is fixed on the side of running trolley (3), and the roller chain is twined Bypass and wind sprocket wheel B (73) after above-mentioned sprocket wheel A (72) again, another side termination B (712) of the roller chain (71) is fixed on operation The opposite side of dolly (3)；The roller chain has bracket (76), and the bracket is fixed on girder (2) inner side；Above-mentioned sprocket wheel A (72) it is connected on strainer (74)；It is provided with two studs (741) and bearing (742) on the strainer, described Seat is fixed on end carriage (1)；Above-mentioned two sprocket wheel B (73) is all connected on power transmission shaft (77)；The power transmission shaft passes through bearing block It is fixed on girder；The power transmission shaft is also connected with gear wheel (78), and the gear wheel is connected with little gear (79) engagement；It is described little Gear is connected by connecting shaft with above-mentioned chain pulley (75)；Connect the pitch chain of a closed at both ends on the chain pulley (710)。

3. a kind of dolly chain-drive semi portal crane according to claim 1, it is characterised in that：Described pulls Cart running gear (8) includes driving wheel A (80), driving wheel B (82), follower (81), bangle wheel (83), endless chain (84), Two followers (81) are separately mounted to one end of end carriage (1) and grade beam (101)；Described driving wheel A (80) is arranged on The other end of the grade beam；The other ends of the described driving wheel B (82) installed in the end carriage；One side wheel of the driving wheel B Edge is provided with gear；The driving wheel B is connected with gear shaft (85) external toothing；The gear shaft is by power transmission shaft A (86) and hand Sprocket wheel (83) is while couple together；The bangle wheel is connected on bracing frame (87) by bearing block, and support frame as described above is fixed on On girder (2) side；The another side of the bangle wheel (83) connects minor sprocket (89) by power transmission shaft B (88)；The minor sprocket It is connected with big sprocket wheel (811) by roller chain (810)；The big sprocket wheel is connected on the wheel shaft of above-mentioned driving wheel A (80)；It is above-mentioned Bangle wheel (83) connect a closed at both ends endless chain (84).

4. a kind of dolly chain-drive semi portal crane according to claim 1, it is characterised in that：Described cantilever Component (5) is connected on the suspension rod axle (42) of rotating mechanism by flat key (49) and stop nut (9)；Under the suspension rod axle (42) End is provided through the through hole (422) of diameter；Described stop nut and suspension rod axle is coupled together again with bolt (99), and the spiral shell Bolt (99) is through stop nut and the diameter of suspension rod axle.

5. a kind of dolly chain-drive semi portal crane according to claim 4, it is characterised in that：Described is locking Nut (9) is cylindric, and its center is provided with screw thread (91), and described stop nut external diameter opens up a through hole (92), described Multiple blind holes (93) are also opened up on stop nut external diameter.