CN107867645A - A kind of cantilever crane of two underslung trolleys of band and balance beam - Google Patents

Abstract

This application discloses a kind of two underslung trolleys of band and the cantilever crane of balance beam, including double girder bridge；Double girder bridge includes end carriage, girder；End carriage is formed by connecting by two balance beams and a middle connecting rod；Balance beam one end connects cart actuating device, and the other end connects passive wheel group；Two of end carriage respectively connects a set of horizontal wheel apparatus；Two underslung trolleys are connected on girder lower track；Underslung trolley is provided with the rotating mechanism with elevating arc transmission；Suspension rod axle lower end in rotating mechanism is connected with cantilever member, upper end connection bus ring；Electric block is installed on cantilever member and can be moved back and forth along cantilever beam；Cantilever beam is in below girder and can random angle rotation；Respectively electric frame is chosen in connection one to two end carriages on double girder bridge, and two are chosen two cable wire rails of connection between electric frame, and moveable lashed cable is both provided with cable wire rail.

Description

A kind of cantilever crane of two underslung trolleys of band and balance beam

Technical field

The application is related to crane field, more particularly to the cantilever lifting of a kind of two underslung trolleys of band and balance beam Machine.

Background technology

Existing bridge crane is applied in Workshop, and many machine tools have been controlled in some workshops and have been processed life Production, product and raw material are required for Real-Time Transport to next door workshop or other departments；The suspension hook of crane on workshop is from dolly Upper hang carries out lifting goods, and dolly can only be run back and forth along crane twin beams, and crane can only be along workshop both sides Run back and forth across the cart track on post, the goods scope that such crane hook can lift is in two, workshop cart track Within the plane that two-end-point is surrounded, when being in the goods of this horizontal edge needs lifting, suspension hook just produces oblique pull, then from this The article (such as workshop outdoors, across outer) of far point cannot lift outside individual plane, can only now turn by other transporting equipments Fortune, generally drives workshop into by automobile and lifting goods is carried out under suspension hook, some cars are opened to come in this workshop and next door workshop Between laterally lay track, allow trolley special to reach suspension hook and get off to join goods, some is in workshop doorway (or workshop passageway) A special cantilever crane is set up, scheduling is transported through to the goods outside workshop, first goods is lifted up into and hung in this workshop crane The place that hook is got at, then again by crane this goods handling to the other stations in workshop, what is used under this operating mode shows There is bridge crane, can not directly join goods with next door workshop, must be brought quite not by other transporting equipment schedule jobs Just, manpower and materials are also produced to waste.

The content of the invention

The application purpose is to provide a kind of two underslung trolleys of band and the cantilever crane of balance beam, the crane Can simultaneously by workshop both sides cart support rail beam, this workshop of unloading, can be in car across the goods in outer next door place directly below Between operation simultaneously outside two end bays, also can be in this workshop in cart running track direction direct unloading goods in place outdoors, especially The elongate article being adapted to inside and outside handling workshop；It need not be transported by other transporting equipments, improve efficiency；The crane can be low The workshop of roofing uses；The cantilever beam rotating speed of the crane can accurately reach user's request, and can random angle in the horizontal plane Degree rotation.

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

The cantilever crane of a kind of two underslung trolleys of band and balance beam, including double girder bridge 28；The double girder bridge Including end carriage 1, girder 2；It is characterized in that：The end carriage 1 is connected by two balance beams 102 and a middle connecting rod 101 Form；The cart actuating device 8 of one end connect band inner flange seat of balance beam 102, the other end connect passive wheel group 18； Two of the end carriage 1 respectively connects a set of horizontal wheel apparatus 6；The lower section of girder 2 is provided with track 21；The track is by I-steel Or H profile steel is formed；Weld car bumper 70 in the track both ends；Two underslung trolleys 3 are connected between two tracks 21；It is described outstanding Hang dolly 3 and be provided with the rotating mechanism 4 with elevating arc transmission；The lower end of suspension rod axle 42 and cantilever member 5 in the rotating mechanism Connection, upper end connection bus ring 9；Electric block 10 is installed, electric block can be along cantilever beam back and forth on the cantilever member 5 Motion；The cantilever beam is in operation outside extended workshop below the girder, and random angle can rotate in the horizontal plane；Twin beams Respectively electric frame 121 is chosen in connection one to two end carriages 1 on crane span structure, and two parallel cable wire rails of connection between electric frame are chosen described in two 124, moveable lashed cable 123 is both provided with the cable wire rail.

Wherein, described rotating mechanism 4 include drive device 40, small elevating arc 402, big elevating arc 403, bearing block 41, Suspension rod axle 42；The outside of bearing block 41 is fixedly connected on trolley frame 31；The suspension rod axle 42 is hollow shaft, and its lower end is provided with Screw thread, threaded end open up locking breach 421；The middle part of suspension rod axle 42 is provided with the shaft shoulder 425；The lower end of the inner hole of bearing seat Branch sleeve 43；The suspension rod axle is connected through the center of bearing block 41 with thrust bearing 45, lower floor's connection of the thrust bearing On the top of bearing block, its upper strata is connected with stop nut A44, and the stop nut A bands dust cover 441, stop nut A is with hanging Bar axle thread connects, then is connected by the diameter of bolt 46 through stop nut A and suspension rod axle；Described drive device 40 Combined by motor and horizontal speed-reducer, described drive device is fixed on trolley frame 31 by reductor bearing 401；Institute The drive device output shaft stated is connected to small elevating arc 402, and the small elevating arc is connected with the big external toothing of elevating arc 403, described Big elevating arc is connected on above-mentioned suspension rod axle 42.

Wherein, described bus ring 9 can purchase electromechanical accessory, and it includes interior insulation circle, outer insulator, interior insulation circle with It can be rotated between outer insulator and can be mutually conductive；Interior insulation circle is connected on suspension rod axle 42, the electricity of conducting ring on interior insulation circle Cable is connected to electric block by hollow inside suspension rod axle 42；Outer insulator is fixed on trolley frame by support, external insulation Cable on body is connected with external power cord.

Wherein, described cantilever member 5 includes cantilever beam 51, Holder for hanging household utensiles 52；Described one setting connecting hole of Holder for hanging household utensiles 521, described connecting hole is interior to be provided with keyway 522；The Holder for hanging household utensiles other end is provided with operation window 523 and is used to operate connection anti-loose spiral shell It is female；The operation window of the Holder for hanging household utensiles 52 this be welded on one end of the cantilever beam 51；The cantilever beam is made up of I-steel, Or be made up of H profile steel, or the box girder structure welded by steel plate, the cantilever beam both ends are provided with buffing pad 511.

Wherein, described cantilever member 5 is connected to the suspension rod axle 42 of rotating mechanism by flat key 49 and stop nut 100 On；Described stop nut and suspension rod shaft end head is connected by bolt and locking plate 110 again.

Wherein, described underslung trolley 3 includes trolley frame 31, drive mechanism 34, roller devices 35；The trolley frame is by steel Plate weld is formed or is welded by steel plate and shaped steel combination；The trolley frame both sides connect the drive mechanism described in two sets respectively 34；The drive mechanism is connected on trolley frame by balance plate 32 and bearing pin 33；On the side of every set drive mechanism on trolley frame Side reconnects a roller devices 35；The roller devices are in immediately below track 21；The drive mechanism 34 includes motor 341st, two driving wheels, 342, two followers 343, band gear on driving wheel single-wheel edge and wheel rim, follower band single-wheel edge；Institute State two driving wheels to be connected on left hanging plate 344, described two followers are connected on right hanging plate 345；The left hanging plate and the right side Hanging plate is connected by two studs and nut 346；Above-mentioned motor 341 carries reductor, motor output shaft band gear；It is described Motor 341 is connected on left hanging plate, and motor output shaft is connected with above-mentioned two driving wheel external toothing simultaneously.

Wherein, described cart actuating device 8 includes wheel 81, axletree 82, inner flange seat 83, three-in-one reductor 84, the tread of the wheel 81 is two-wheel edge, and the wheel is connected by flat key 85 with the axletree 82；The axletree leads to Two bearings 86 are crossed to be connected with two inner flange seats 83 respectively；The ring flange 831 of two inner flange seats 83 connects respectively It is connected on the inwall of 102 two sides of balance beam；The shaft extension 821 of described one end of axletree 82 is connected with three-in-one reductor 84； Fixing hole on the three-in-one reductor is connected by bolt 87 with fixed seat 88；The fixed seat is connected to balance beam On 102.

Wherein, described passive wheel group 18 includes wheel 181, axletree 182, inner flange seat 183, the wheel 181 It is connected on the axletree 182；The axletree both ends are designed with the shaft shoulder 1821；The both ends of the axletree 182 respectively connect One bearing 184；Bearing cap 185 is connected between the bearing and the above-mentioned shaft shoulder 1821；The bearing cap 185 and wheel 181 Between be connected to axle sleeve 186；The outer ring of two bearings 184 is connected on two inner flange seats 183；Two institutes The ring flange 1831 for stating inner flange seat is connected to the inner side of 102 two sides of balance beam by screw 187.

Wherein, described horizontal wheel apparatus 6 includes horizontal wheels 61, wheel shaft 62, bearing 63, described horizontal wheels one side belt wheel Edge, and wheel rim is installed down；Two horizontal wheels are separately positioned on the both sides of the tread of track 601, and gap coordinates；The level Wheel is connected by bearing 64, shaft retaining ring 65, hole back-up ring 66 with the wheel shaft 62；Two wheel shafts pass through the He of locking plate 67 respectively It is bolted on above-mentioned bearing 63；Connection buffer 68 among the bearing；The bearing is provided with end carriage connecting hole 69.

The beneficial effect of the application is as described below：

In the application crane configure two underslung trolleys (3), it is necessary to when underslung trolley can reach workshop two respectively Side operation simultaneously, improves efficiency；Cantilever beam in underslung trolley can be stretched out between crane locomotive to outdoors or straight to next door workshop Connect lifting goods；Two running trolleys are not only able to be in crane both ends unloading cart running track line side workshop respectively Goods, parted hair operation；And it is capable of the next door workshop goods of unloading cart traffic direction end points；Two cantilever beam can stretch out simultaneously Operation outside workshop, especially facilitate cooperation to hang elongated, the soft object of lift, rotated by two the different of cantilever beam, object handling To suitable position；Because cantilever beam is arranged at the lower section of underslung trolley and girder, cantilever beam can by be stretched into below support rail beam every The direct lifting cargo in wall workshop, or can directly stretch out the workshop operation outdoors of cart traffic direction；After lifting goods, by electronic Motion of the cucurbit along cantilever beam, or the rotation by cantilever member, or the movement by underslung trolley, or it is big by crane The motion of car, or by foregoing four integrated motion, the goods of lifting can be hung onto the place that this workshop needs；With every Wall workshop or workshop can need not borrow the transhipment of other transporting equipments when carrying out goods handing-over outdoors, improve efficiency.

Track (21) is set below the girder in the application crane, underslung trolley is suspended on the track below girder, Its installing space position is reduced, is particularly suitable for roofing with crane apart from small workshop, that is, is adapted to low roofing workshop to use.

Cantilever beam, electric block (10) suspension hook therein are equipped with two underslung trolleys (3) in the application crane With the use of that can facilitate handling elongate article, two cantilever beam common operationals are especially suitable for the elongate article inside and outside handling workshop.

Electric frame (121) of choosing on the application loading bridge is provided with two groups of moveable lashed cables (123), outstanding to two respectively Hang dolly (3) power supply.

Horizontal wheel apparatus in the application crane is arranged on two of end carriage, it is ensured that and rail is not gnawed in crane operation, It is especially suitable for large span crane；Horizontal wheels in horizontal wheel apparatus carry wheel rim, can serve " safety hook ", may be because outstanding Arm load beam is overweight, and for crane end carriage while upwarping, now the wheel rim of horizontal wheels catches on running track, avoids crane from tumbling, Ensure safety；Can be rotated in the same old way while horizontal wheels catch on track, crane can run advance in the same old way, this technology use than The safety hook of steel plate type is advanced, and stuck phenomenon does not occur for cart operation.

End carriage in the application crane connected using two balance beams (102) and a middle connecting rod (101) and Into, it is such to combine the supporting multigroup wheel of end carriage, the wheel group of small-wheel-diameter can be used, makes the sectional dimension of end carriage small, is configured to This is low, and can solve the problems, such as the small wheel load of crane large-tonnage.

End carriage both ends in the application crane all set cart actuating device, ensure that cart operation is smooth, avoid unilateral Because end carriage may upwarp during driving, driving wheel not rail produce idle running phenomenon；Cart actuating device (8) structure letter of the application List, assembly and disassembly are convenient, and car wheel structure is simply easy to process；Independent wheel axis connection, it can be set to different length and different size Shaft extension, easily can be connected with outside various forms of actuating units；The shaft extension insertion hollow type three of the application axletree closes One reductor is attached thereto, whole drive mechanism small in volume；The ring flange of inner flange seat is connected to end carriage side inner walls Benefit be that can stand very big axial float inner flange seat all without departing from position, it is not necessary to connecting bolt bears big axle It is good to pulling force, wheel alignment；The output shaft of the three-in-one reductor of hollow type can be that parallel or horizontal direction is vertical with motor shaft Or vertical direction is vertical, according to space situation, different installation forms is selected, to be adapted to normal safe operation；The application Drive device, it is widely used, it is simple in construction without shaft coupling, from heavy and light, be convenient to mount and dismount, good concentricity, noise is small, operation Steadily.

Passive wheel group on the application end carriage is compact-sized, assembly and disassembly are easy；Car wheel structure is simply easy to process, by independence The positioning of bearing cap and axle sleeve to wheel, it is low to process these accessory costs；Car can be adjusted by adjusting the different-thickness of axle sleeve Rail problem is gnawed in the center of wheel, adjustment；The ring flange of inner flange seat be connected to benefit on the inside of end carriage can stand it is very big Axial float inner flange seat is all without departing from position, it is not necessary to which attachment screw bears big axial tension.

Underslung trolley (3) in the application can move back and forth along girder both ends, be suitable for big width workshop and use；Suspension Drive mechanism (34) on dolly can be in whole set procurement standarized component on the market, supporting facility；Driving wheel, quilt in drive mechanism Driving wheel is connected on the edge of track (21) both sides Ji, ensures that underslung trolley does not drop, so as to ensure that crane is safe to use；It is outstanding Hang dolly side two sets of drive mechanisms of installation to be connected on same track, and roller devices are installed beside every set drive mechanism (35), its be advantageous in that can avoid single driving be possible to because dolly somewhat upwarp on one side adhesion wheel not rail and caused by run not Dynamic phenomenon, dual drive ensure that trolley travelling is smooth；Roller devices can limit underslung trolley while the degree upwarped, ensures that suspension is small Car is stable, and operation is smooth；Power supply needed for underslung trolley and electric block and rotating mechanism is by lashed cable (123) along choosing electric frame Upper cable wire rail (124) can run power supply back and forth with underslung trolley；Cable wire rail both ends are connected to two and choose electric frame (121), The appropriate height of electric frame is chosen by adjustment, lashed cable can be solved and most preferably hang position；Cable wire rail is to make track, cost using steel wire rope It is low.

Car bumper (70) on the application middle girder track, the operation stroke of underslung trolley can be limited, ensure safety.

The electric block cable (200) of the application crane is from the suspension rod axis center in rotating mechanism by being connected to collection Electric slip ring (9), cable (200), which will not be wound, not to be torn, is not required to set rotary limit device, ensures that cantilever beam can be in level Arbitrary Rotation on face；There is the gear auxiliary driving of a pair of elevating arc transmissions in rotating mechanism, pass through big elevating arc, small elevating arc The different numbers of teeth setting, precise requirements of the user to the cantilever beam rotary speed of crane can be met, avoid direct selection standard Reductor it is general speed than and caused cantilever beam rotating speed and the larger error of actual demand；It is driven using elevating arc, rotation can be made Drive device in rotation mechanism uses horizontal speed-reducer, reduces setting height(from bottom).

Bearing block and suspension rod axis connection in the application rotating mechanism bear gravity by thrust bearing, and thrust bearing is arranged on Bearing block top, it is easy to dismount；The inner hole structure of bearing block is simply easy to process；Sleeve (43) is that high-abrasive material makees sliding bearing Use, reduce the fit clearance of suspension rod axle, increase rotational stabilization, increase the axiality of drive mechanism, cantilever member, which rotates, to be saved Power；Stop nut A band dust covers (441) give bearing proofing dust and protecting, while can seal the butter in bearing；Stop nut A is with hanging After bar axis connection, then the connection by bolt (46), anti-loose effect is played, ensures rotating mechanism safety.

Cantilever beam in the application, which is provided at both ends with buffing pad, can avoid electric block from moving back and forth impact along cantilever beam Or overtravel；After stop nut in cantilever member connection connects with suspension rod axle thread, then to have locking plate (110) to be connected to locking Nut is with suspension rod axle spindle-end looseness-proof breach, avoiding stop nut from unclamping, securely and reliably；Blind hole on stop nut can facilitate thick stick Bar inserts, and it is light to pull nut, easy disassembly and maintenance.

Brief description of the drawings

Fig. 1 is the application structural front view；

Fig. 2 is Fig. 1 side view；

Fig. 3 is Fig. 1 top view；

Fig. 4 is F partial enlarged drawings (rotating mechanism) in Fig. 1；

Fig. 5 is the E direction views in Fig. 4；

Fig. 6 is cantilever member schematic diagram in the application；

Fig. 7 is underslung trolley structural front view in the application；

Fig. 8 is Fig. 7 side view；

Fig. 9 is the G direction views (trolley driving mechanism) in Fig. 7；

Figure 10 is cart actuating device schematic diagram in the application；

Figure 11 is passive wheel group schematic diagram in the application；

Figure 12 is horizontal wheel apparatus structural front view in the application；

Figure 13 is Figure 12 side view.

Embodiment

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

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of two underslung trolleys of band and the cantilever crane of balance beam, including twin beams bridge Frame 28；The double girder bridge includes end carriage 1, girder 2；The end carriage 1 is by two balance beams 102 and a middle connecting rod 101 are formed by connecting；The cart actuating device 8 of one end connect band inner flange seat of balance beam 102, the other end are connected by motor-car Wheel group 18；Two of the end carriage 1 respectively connects a set of horizontal wheel apparatus 6；The lower section of girder 2 is provided with track 21；The track It is made up of I-steel or H profile steel；Weld car bumper 70 in the track both ends；Two underslung trolleys are connected between two tracks 21 3；The underslung trolley 3 is provided with the rotating mechanism 4 with elevating arc transmission；The lower end of suspension rod axle 42 in the rotating mechanism is with hanging Arm member 5 connects, upper end connection bus ring 9；Electric block 10 is installed, electric block can be along outstanding on the cantilever member 5 Arm beam moves back and forth；The cantilever beam is in operation outside extended workshop below the girder, and can random angle in the horizontal plane Rotation；Respectively electric frame 121 is chosen in connection one to two end carriages 1 on double girder bridge, and connection two is parallel between electric frame is chosen described in two Cable wire rail 124, be both provided with moveable lashed cable 123 on the cable wire rail.

As shown in Figure 4, Figure 5, described rotating mechanism 4 include drive device 40, small elevating arc 402, big elevating arc 403, Bearing block 41, suspension rod axle 42；The outside of bearing block 41 is fixedly connected on trolley frame 31；The suspension rod axle 42 is hollow shaft, Its lower end is provided with screw thread, and threaded end opens up locking breach 421；The middle part of suspension rod axle 42 is provided with the shaft shoulder 425；The bearing block The lower end branch sleeve 43 of endoporus；The suspension rod axle is connected through the center of bearing block 41 with thrust bearing 45, the thrust bearing Lower floor be connected to the top of bearing block, its upper strata is connected with stop nut A44, the stop nut A bands dust cover 441, is prevented Loose nut A is connected with suspension rod axle thread, then is connected by the diameter of bolt 46 through stop nut A and suspension rod axle；It is described Drive device 40 combined by motor and horizontal speed-reducer, described drive device is fixed on by reductor bearing 401 On trolley frame 31；Described drive device output shaft is connected to small elevating arc 402, the small elevating arc with outside big elevating arc 403 Engagement connection, the big elevating arc are connected on above-mentioned suspension rod axle 42.

Described cantilever member 5 is connected on the suspension rod axle 42 of rotating mechanism by flat key 49 and stop nut 100；It is described Stop nut and suspension rod shaft end head connected again by bolt and locking plate 110.

Described bus ring 9 can purchase electromechanical accessory, and it includes interior insulation circle, outer insulator, interior insulation circle with it is outer absolutely It can be rotated between edge body and can be mutually conductive；Interior insulation circle is connected on suspension rod axle 42, and the cable of conducting ring leads on interior insulation circle That crosses inside suspension rod axle 42 hollow is connected to electric block；Outer insulator is fixed on trolley frame by support, on outer insulator Cable be connected with external power cord.

As shown in fig. 6, described cantilever member 5 includes cantilever beam 51, Holder for hanging household utensiles 52；The Holder for hanging household utensiles one sets connection Hole 521, described connecting hole is interior to be provided with keyway 522；The Holder for hanging household utensiles other end is provided with operation window 523 and is used to operate connection anti-loose Nut；The operation window of the Holder for hanging household utensiles 52 this be welded on one end of the cantilever beam 51；The cantilever beam is by I-steel structure Into, or be made up of H profile steel, or the box girder structure welded by steel plate, the cantilever beam both ends are provided with buffing pad 511.

As shown in Fig. 7, Fig. 8, Fig. 9, described underslung trolley 3 includes trolley frame 31, drive mechanism 34, roller devices 35； The trolley frame is welded by steel plate or is welded by steel plate and shaped steel combination；The trolley frame both sides connect two sets respectively Described drive mechanism 34；The drive mechanism is connected on trolley frame by balance plate 32 and bearing pin 33；Every on trolley frame The side for covering drive mechanism reconnects a roller devices 35；The roller devices are in immediately below track 21；The driving machine Structure 34 includes 341, two, the motor follower 343 of driving wheel 342, two, band gear, follower on driving wheel single-wheel edge and wheel rim Band single-wheel edge；Described two driving wheels are connected on left hanging plate 344, and described two followers are connected on right hanging plate 345；It is described Left hanging plate is connected with right hanging plate by two studs and nut 346；Above-mentioned motor 341 carries reductor, motor output shaft Band gear；The motor 341 is connected on left hanging plate, and motor output shaft is connected with above-mentioned two driving wheel external toothing simultaneously.

As shown in Figure 10, described cart actuating device 8 includes wheel 81, axletree 82, inner flange seat 83, three-in-one subtracted Fast machine 84, the tread of the wheel 81 is two-wheel edge, and the wheel is connected by flat key 85 with the axletree 82；The wheel Axle is connected with two inner flange seats 83 respectively by two bearings 86；The ring flange 831 of two inner flange seats 83 divides The inwall of 1 two sides of end carriage is not connected to；The shaft extension 821 of described one end of axletree 82 is connected with three-in-one reductor 84；Institute The fixing hole stated on three-in-one reductor is connected by bolt 87 with fixed seat 88；The fixed seat is connected in balance beam.

As shown in figure 11, described passive wheel group 18 includes wheel 181, axletree 182, inner flange seat 183, the car Wheel 181 is connected on the axletree 182；The axletree both ends are designed with the shaft shoulder 1821；The both ends of the axletree 182 are each Connect a bearing 184；Bearing cap 185 is connected between the bearing and the above-mentioned shaft shoulder 1821；The bearing cap 185 and wheel Axle sleeve 186 is connected between 181；The outer ring of two bearings 184 is connected on two inner flange seats 183；Two The ring flange 1831 of the individual inner flange seat is connected to the inner side of two sides of balance beam by screw 187.

As shown in Figure 12 and Figure 13, described horizontal wheel apparatus 6 includes horizontal wheels 61, wheel shaft 62, bearing 63, the level Wheel is on one side with wheel rim, and wheel rim is installed down；Two horizontal wheels are separately positioned on the both sides of the tread of track 601, and gap is matched somebody with somebody Close；The horizontal wheels are connected by bearing 64, shaft retaining ring 65, hole back-up ring 66 with the wheel shaft 62；Two wheel shafts lead to respectively Cross locking plate 67 and be bolted on above-mentioned bearing 63；Connection buffer 68 among the bearing；The bearing is provided with end Beam connecting hole 69.

Claims (8)

1. the cantilever crane of a kind of two underslung trolleys of band and balance beam, including double girder bridge (28)；The double girder bridge Including end carriage (1), girder (2)；It is characterized in that：The end carriage (1) is by two balance beams (102) and a middle connecting rod (101) it is formed by connecting；The cart actuating device (8) of described balance beam (102) one end connect band inner flange seat, other end connection Passive wheel group (18)；Two of the end carriage (1) respectively connects a set of horizontal wheel apparatus (6)；Rail is provided with below the girder (2) Road (21)；The track is made up of I-steel or H profile steel；The track both ends welding car bumper (70)；Two tracks (21) Between connect two underslung trolleys (3)；The underslung trolley (3) is provided with the rotating mechanism (4) with elevating arc transmission；The rotation Suspension rod axle (42) lower end in rotation mechanism is connected with cantilever member (5), upper end connection bus ring (9)；The cantilever member (5) Upper installation electric block (10), electric block can move back and forth along cantilever beam；The cantilever beam is in can under the girder Operation outside workshop is stretched out, and random angle can be rotated in the horizontal plane；Respectively electricity is chosen in connection one to two end carriages (1) on double girder bridge Frame (121), two parallel cable wire rails (124) of connection between electric frame are chosen described in two, are both provided with the cable wire rail removable Dynamic lashed cable (123).

2. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described rotating mechanism (4) includes drive device (40), small elevating arc (402), big elevating arc (403), bearing block (41), suspension rod Axle (42)；The bearing block (41) is fixedly connected on trolley frame (31)；The suspension rod axle (42) is hollow shaft, and its one end is provided with Screw thread, threaded end open up locking breach (421)；The shaft shoulder (425) is provided with the middle part of the suspension rod axle (42)；The inner hole of bearing seat Lower end branch sleeve (43)；The suspension rod axle is connected through bearing block (41) center with thrust bearing (45), the thrust axis The lower floor held is connected to the top of bearing block, and its upper strata is connected with stop nut A (44), the stop nut A bands dust cover (441), stop nut A is connected with suspension rod axle thread, then is connected by bolt (46) through stop nut A with the diameter of suspension rod axle Get up；Described drive device (40) is combined by motor and horizontal speed-reducer, and described drive device passes through reductor branch Seat (401) is fixed on trolley frame (31)；Described drive device output shaft is connected to small elevating arc (402), the small fan tooth Wheel is connected with big elevating arc (403) external toothing, and the big elevating arc is connected on above-mentioned suspension rod axle (42).

3. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described cantilever member (5) includes cantilever beam (51), Holder for hanging household utensiles (52)；The Holder for hanging household utensiles one sets connecting hole (521), described Connecting hole in be provided with keyway (522)；The Holder for hanging household utensiles other end is provided with operation window (523)；The operation of the Holder for hanging household utensiles (52) This head of window is welded on one end of the cantilever beam (51)；The cantilever beam is made up of I-steel, or is made up of H profile steel, described Cantilever beam both ends are provided with buffing pad (511).

4. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described cantilever member (5) is connected on the suspension rod axle (42) of rotating mechanism by flat key (49) and stop nut (100)；It is described Stop nut and suspension rod shaft end head connected again by bolt and locking plate (110).

5. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described underslung trolley (3) includes trolley frame (31), drive mechanism (34), roller devices (35)；The trolley frame is welded by steel plate Connect and form or be welded by steel plate and shaped steel combination；The trolley frame both sides connect the drive mechanism described in two sets respectively (34)；The drive mechanism is connected on trolley frame by balance plate (32) and bearing pin (33)；In every set driving machine on trolley frame The side of structure reconnects a roller devices (35)；The roller devices are in immediately below track (21)；The drive mechanism (34) motor (341), two driving wheels (342), two followers (343) are included, band gear on driving wheel single-wheel edge and wheel rim, Follower band single-wheel edge；Described two driving wheels are connected on left hanging plate (344), and described two followers are connected to right hanging plate (345) on；The left hanging plate is connected with right hanging plate by two studs and nut (346)；Above-mentioned motor (341), which carries, to be subtracted Fast machine, motor output shaft band gear；The motor (341) is connected on left hanging plate, motor output shaft simultaneously with above-mentioned two master Driving wheel external toothing connects.

6. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described cart actuating device (8) includes wheel (81), axletree (82), inner flange seat (83), three-in-one reductor (84), institute The tread for stating wheel (81) is two-wheel edge, and the wheel is connected by flat key (85) with the axletree (82)；The axletree It is connected respectively with two inner flange seats (83) by two bearings (86)；The ring flange of two inner flange seats (83) (831) it is connected to the inwall of (102) two sides of balance beam；The shaft extension (821) and three of described axletree (82) one end Unify reductor (84) connection；Fixing hole on the three-in-one reductor is connected by bolt (87) with fixed seat (88)；Institute Fixed seat (88) is stated to be connected in balance beam (102).

7. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described passive wheel group (18) includes wheel (181), axletree (182), inner flange seat (183), wheel (181) connection On the axletree (182)；The axletree both ends are designed with the shaft shoulder (1821)；The both ends of the axletree (182) respectively connect Connect a bearing (184)；Bearing cap (185) is connected between the bearing and the above-mentioned shaft shoulder (1821)；The bearing cap (185) Axle sleeve (186) is connected between wheel (181)；The outer ring of two bearings (184) is connected to two interior methods On blue seat (183)；The ring flange (1831) of two inner flange seats is connected to balance beam by screw (187) The inner side of (102) two sides.

8. the cantilever crane of two underslung trolleys of a kind of band according to claim 1 and balance beam, it is characterised in that： Described horizontal wheel apparatus (6) include horizontal wheels (61), wheel shaft (62), bearing (63), the horizontal wheels on one side band wheel rim, and wheel Edge is installed down；Two horizontal wheels are separately positioned on the both sides of track (601) tread, and gap coordinates；The horizontal wheels are led to Bearing (64), shaft retaining ring (65), hole back-up ring (66) is crossed to be connected with the wheel shaft (62)；Two wheel shafts pass through locking plate respectively (67) and it is bolted on above-mentioned bearing (63)；Connection buffer (68) among the bearing；The bearing is provided with end carriage Connecting hole (69).