CN107777554A - A kind of cantilever crane with underslung trolley and with elevating arc transmission - Google Patents

Abstract

This application discloses a kind of cantilever crane with underslung trolley and with elevating arc transmission, including double girder bridge；End carriage both ends on crane span structure are designed with cart actuating device and horizontal wheel apparatus；Track is provided with below girder on crane span structure；Underslung trolley is connected on track；Underslung trolley is provided with the rotating mechanism with elevating arc transmission；Suspension rod axle lower end and cantilever member in rotating mechanism, upper end connection safety ruler；Two travel switches are connected to above trolley frame；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 stretch out operation outside workshop；Gantry top is provided with some choose and electric frame and leads cable rail；Lead and connect lashed cable on cable rail.

Description

A kind of cantilever crane with underslung trolley and with elevating arc transmission

Technical field

The application is related to crane field, more particularly to a kind of cantilever lifting with underslung trolley and with elevating arc transmission 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 cantilever crane with underslung trolley and with elevating arc transmission, the crane Goods of this workshop across outer next door place can be lifted by crane directly below by cart support rail beam, also can be in cart running track direction This workshop direct lifting cargo in place outdoors, it is not necessary to transported by other transporting equipments, improve efficiency, and can be goods discharge In the place that workshop needs, the crane can use in the workshop of low roofing, and the cantilever beam rotating speed of the crane can be accurate Reach user's request.

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

A kind of cantilever crane with underslung trolley and with elevating arc transmission, including double girder bridge 28；The double girder bridge Including end carriage 1, girder 2；It is characterized in that：The both ends of end carriage 1 are designed with cart actuating device 8 and water with spline tooth wheel Flat wheel apparatus 6；The lower section of girder 2 is provided with track 21；Car bumper 70 is welded at the track both ends, and buffer is connected on the car stop 701；Underslung trolley 3 is connected on two tracks 21；The underslung trolley 3 is provided with the rotating mechanism with elevating arc transmission 4；The lower end of suspension rod axle 42 in the rotating mechanism is connected with cantilever member 5；Suspension rod axle upper end connects safety ruler 583；The peace The the meeting and discussing to touch with travel switch 581 of full chi is connected, and two travel switches are connected to above trolley frame 31；The cantilever Electric block 10 is installed, electric block can move back and forth along cantilever beam on component 5；The cantilever beam is in below the girder Operation outside extended workshop, and can rotate in the horizontal plane；Electric frame 121 is chosen provided with some at the top of the double girder bridge, chooses electric frame Cable rail 124 is led in connection below；It is described to lead connection lashed cable 123 on cable 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；Described suspension rod axle one end is provided with screw thread, and the through hole 422 of diameter is provided through on screw thread；The suspension rod axle is by pushing away Power bearing 45 is connected to inside the bearing block 41, and the suspension rod axle reconnects bearing A44 and bearing B46, the bearing A and axle Hold the both ends that B is connected to above-mentioned bearing block by bolt and fixed cover 43 and blind flange 47 respectively, described suspension rod axle one end from The fixed cover center is stretched, and the other end is stretched from above-mentioned blind flange center；The bearing block 41 passes through above-mentioned blind flange 47 are bolted on trolley frame 31；Described drive device 40 is combined by motor and horizontal speed-reducer, described driving Device is arranged on trolley frame 31；Described drive device output shaft is connected to small elevating arc 402, the small elevating arc and big fan The external toothing of gear 403 connects, and the big elevating arc is connected to one end of above-mentioned suspension rod axle 42.

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 welded by steel plate is formed, the cantilever beam both ends are provided with buffing pad 511.

Wherein, described cantilever member 5 is connected on the suspension rod axle 42 of rotating mechanism by flat key 49 and stop nut 9； Described stop nut and suspension rod axle is connected with bolt 99 again, and the bolt is through the straight of stop nut and suspension rod axle Footpath.

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, reducing motor 83, and the wheel is two-wheel edge, described Inside wheel is provided with spline tooth 811, and the described both sides of wheel 81 are connected by bearing 82 and flange shaft 84, hollow flange axle 85 respectively Connect, the ring flange of described flange shaft 84 and hollow flange axle 85 is connected to the both sides of end carriage 1；The outer ring of bearing 82 leads to Back-up ring 86 is crossed to be fixed on the wheel；The ring flange 851 of above-mentioned hollow flange axle 85 is provided with motor connection screw 852；Institute Reducing motor 83 is stated to be connected with above-mentioned wheel inner spline gear 811 with splined output shaft 831；In flange seat on the reducing motor Positioning concave ring 832 inlayed with the external diameter of ring flange 851 in hollow flange axle and be connected and fastened by screw.

Wherein, described horizontal wheel apparatus 6 includes horizontal wheels 61, wheel shaft 62, bearing 63, and an axle is set inside the horizontal wheels Shoulder 611, horizontal wheels are while band wheel rim, and wheel rim is installed down；Two horizontal wheels are arranged in the two of the tread of track 601 Side, and gap coordinates；The horizontal wheels are connected by two bearings 64 with the wheel shaft 62；It is another greatly that the wheel shaft is arranged to one end One end is small, and small one end sets jagged 621 to be used to install locking plate；The small end branch sleeve 65 of the wheel shaft, the set The external diameter of cylinder and the big end of above-mentioned wheel shaft are connected on the through hole 632 of above-mentioned bearing 63；Two wheel shafts pass through respectively Locking plate 67 and it is bolted on bearing；The bearing bottom sets two engineer rooms 631, and through hole 632 is opened up in the engineer room； The bearing is provided with end carriage connecting hole 69；Connection buffer 68 among the bearing.

Wherein, described safety ruler 583 includes swing rod 5832 and meets and discusses 5831, described 5831 setting cambers of meeting and discussing Shape, the described both ends met and discussed are set as symmetric bending shape；Described one end of swing rod 5832 is provided with connecting hole 5833, is set in connecting hole There is keyway 5834.

The beneficial effect of the application is as described below：

Cantilever beam in the application crane can be stretched out between crane locomotive to directly lifting goods outdoors or to next door workshop Thing；The next door workshop goods of cart traffic direction end points can be not only lifted by crane, and cart running track line side can be lifted by crane The goods in workshop；Because the cantilever beam of the application is arranged at below dolly and girder, cantilever beam can be by stretching into below support rail beam The direct lifting cargo in next door workshop, or the workshop operation outdoors of cart traffic direction can be directly stretched out, because the generally door in workshop Top can reach height where the support rail beam in this workshop substantially, therefore present techniques feature can realize the application purpose；Lifting After goods, pass through motion of the electric block along cantilever beam, or the rotation by cantilever member, or the shifting for passing through underslung trolley It is dynamic, or the motion by crane travelling mechanism, or by foregoing four integrated motion, the goods of lifting can be hung The place needed to this workshop；It can need not be borrowed when carrying out goods handing-over outdoors with the next door workshop of workshop surrounding or workshop The transhipment of its transporting equipment, improve efficiency.

Trolley track (21) is set below the girder in the application crane, and underslung trolley is suspended on girder track, made Its installing space position reduces, and is particularly suitable for roofing with crane apart from small workshop.

Horizontal wheel apparatus in the application crane is arranged on the both ends of every end carriage, and wheel on end carriage is limited by horizontal wheels System is run in orbit centre, it is ensured that rail is not gnawed in crane operation, is especially suitable for large span crane；This horizontal wheel apparatus One of advantage horizontal wheels are arranged in engineer room (631), and wheel shaft (62) both ends are all fixed in the through hole (632) of engineer room, such water Cantilever, wheel shaft can not bear big lateral impact forces not flexural deformation to flat wheel；Horizontal wheels in horizontal wheel apparatus carry wheel rim, can , may be because of cantilever beam load exceedance to play " safety hook ", crane end carriage is while upwarp, and now the wheel rim of horizontal wheels is caught on Running track, avoid crane from tumbling, ensure safety；It can be rotated in the same old way while horizontal wheels catch on track, crane is in the same old way Advance can be run, using more advanced than the safety hook of steel plate type, stuck phenomenon does not occur this technology for cart operation.

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 of the application is new It is clever, compact, assembly and disassembly it is convenient；Hollow flange axle is hollow, and drive shaft passes therethrough；Ring flange (851) on hollow flange axle Both it had been used to connect end carriage, and had been used to connect reducing motor again, positions reducing motor；The output shaft of reducing motor passes through hollow flange axle Hollow hole is connected with wheel spline pair and directly drives wheel；Positioning concave ring on reducing motor is snugly connected to hollow In the flange external diameter of flange shaft, the connecting hole on reducing motor flange seat passes through with the motor connection screw on hollow flange axle Bolt is tightly coupled together；The reducing motor of this structure is especially adapted to planetary reduction gear, and structure is small, and noise is small；So slow down electricity Connect not only simple but also firmly between machine and wheel, axiality is good, takes up space small, ensures that wheel steadily operates, operate it is with small vibration, Noise is small.

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 can be with underslung trolley by lashed cable Operation power supply back and forth；Gantry top has a plurality of electric frame (121) of choosing to lead the connection of cable rail, keeps leading the rigidity of cable rail, it is ensured that lashed cable Coaster slides smooth in cable rail is led.

The application middle girder track termination car bumper and buffer can limit the stroke and operational shock of underslung trolley, increase peace Entirely.

Rotary limit device is provided between cantilever member and underslung trolley in the application, by safety ruler (583) and two Travel switch (581) forms, and safety ruler is arranged on suspension rod axle upper end, and travel switch is arranged on trolley frame upper surface, is more convenient peace Adjustment section；Have rotary limit device, cantilever beam can be avoided excessively to rotate, prevent electric block cable (100) be wrapped in it is outstanding It is torn on Holder for hanging household utensiles (52) in arm member, because the cable (100) of electric block is drawn from the junction box on trolley frame It is ensuing.

Bearing block and suspension rod axis connection in the application rotating mechanism bear lifting power by thrust bearing, and suspension rod axle is by bearing The spacing firmly radial positions of A and above and below bearing B, ensure that suspension rod axle can bear very big axial force and not offset radially, so as to ensure Drive device axiality is good, and hinged cantilever component is laborsaving；There is the elevating arc pair of a pair of exposed drives in the rotating mechanism of the application Transmission, set by the different numbers of teeth of big elevating arc, small elevating arc, user can be met to the cantilever beam rotary speed of crane Precise requirements, avoid 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, the drive device in rotating mechanism can be made to use horizontal speed-reducer, it is easy for installation, it can be directly installed on On trolley frame；After stop nut in cantilever member connection connects with suspension rod axle thread, then there is bolt (99) to pass through stop nut Connected with the diameter of suspension rod axle, avoid stop nut from unclamping, securely and reliably.

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 cantilever member schematic diagram in the application；

Fig. 6 is underslung trolley structural front view in the application；

Fig. 7 is Fig. 6 side view；

Fig. 8 is the G direction views (trolley driving mechanism) in Fig. 6；

Fig. 9 is cart actuating device schematic diagram in the application；

Figure 10 is horizontal wheel apparatus structural front view in the application；

Figure 11 is Figure 10 side view；

Figure 12 is safety ruler structural representation in the application.

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 cantilever crane with underslung trolley and with elevating arc transmission, including twin beams bridge Frame 28；The double girder bridge includes end carriage 1, girder 2；The both ends of end carriage 1 are designed with the cart driving dress with spline tooth wheel Put 8 and horizontal wheel apparatus 6；The lower section of girder 2 is provided with track 21；Car bumper 70 is welded at the track both ends, connects on the car stop Connect buffer 701；Underslung trolley 3 is connected on two tracks 21；The underslung trolley 3 is provided with elevating arc transmission Rotating mechanism 4；The lower end of suspension rod axle 42 in the rotating mechanism is connected with cantilever member 5；Suspension rod axle upper end connects safety ruler 583；The the meeting and discussing to touch with travel switch 581 of the safety ruler is connected, and two travel switches are connected on trolley frame 31 Face；Electric block 10 is installed, electric block can move back and forth along cantilever beam on the cantilever member 5；The cantilever beam is in Operation outside extended workshop below the girder, and can rotate in the horizontal plane；At the top of the double girder bridge electricity is chosen provided with some Frame 121, choose connection below electric frame and lead cable rail 124；It is described to lead connection lashed cable 123 on cable rail.

As shown in figure 4, described rotating mechanism 4 includes drive device 40, small elevating arc 402, big elevating arc 403, bearing Seat 41, suspension rod axle 42；Described suspension rod axle one end is provided with screw thread, and the through hole 422 of diameter is provided through on screw thread；The suspension rod axle leads to Cross thrust bearing 45 to be connected to inside the bearing block 41, the suspension rod axle reconnects bearing A44 and bearing B46, the bearing A It is connected to the both ends of above-mentioned bearing block, described suspension rod axle one by bolt and fixed cover 43 and blind flange 47 respectively with bearing B End is stretched from the fixed cover center, and the other end is stretched from above-mentioned blind flange center；The bearing block 41 passes through above-mentioned method Blue lid 47 is bolted on trolley frame 31；Described drive device 40 is combined by motor and horizontal speed-reducer, described Drive device is arranged on trolley frame 31；Described drive device output shaft is connected to small elevating arc 402, the small elevating arc with The big external toothing of elevating arc 403 connection, the big elevating arc are connected to one end of 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 9；Described Stop nut and suspension rod axle are connected with bolt 99 again, and the bolt passes through the diameter of stop nut and suspension rod axle.

As shown in figure 5, 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 welded by steel plate is formed, the cantilever beam both ends are provided with buffing pad 511.

As shown in Fig. 6, Fig. 7, Fig. 8, 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 9, described cart actuating device 8 includes wheel 81, reducing motor 83, the wheel is two-wheel edge, Described inside wheel is provided with spline tooth 811, and the described both sides of wheel 81 pass through bearing 82 and flange shaft 84, hollow flange respectively Axle 85 connects, and the ring flange of described flange shaft 84 and hollow flange axle 85 is connected to the both sides of end carriage 1；The bearing 82 Outer ring is fixed on the wheel by back-up ring 86；The ring flange 851 of above-mentioned hollow flange axle 85 is provided with motor connection screw 852；The reducing motor 83 is connected with splined output shaft 831 with above-mentioned wheel inner spline gear 811；Method on the reducing motor Positioning concave ring 832 in blue seat is inlayed with the external diameter of ring flange 851 in hollow flange axle to be connected and is fastened by screw.

As shown in Figure 10, Figure 11, described horizontal wheel apparatus 6 includes horizontal wheels 61, wheel shaft 62, bearing 63, the level Wheel is internal to set a shaft shoulder 611, and horizontal wheels are on one side with wheel rim, and wheel rim is installed down；Two horizontal wheels are respectively arranged in-orbit The both sides of the tread of road 601, and gap coordinates；The horizontal wheels are connected by two bearings 64 with the wheel shaft 62；The wheel shaft Being arranged to the small and small one end of the big other end in one end sets jagged 621 to be used to install locking plate；The small end connection of the wheel shaft The big end of sleeve 65, the external diameter of the sleeve and above-mentioned wheel shaft is connected on the through hole 632 of above-mentioned bearing 63；Described in two Wheel shaft by locking plate 67 and is bolted on bearing respectively；The bearing bottom sets two engineer rooms 631, in the engineer room Open up through hole 632；The bearing is provided with end carriage connecting hole 69；Connection buffer 68 among the bearing.

As shown in figure 12, described safety ruler 583 includes swing rod 5832 and meets and discusses 5831, and described meet and discuss 5831 is arranged to Arc shape, the described both ends met and discussed are set as symmetric bending shape；Described one end of swing rod 5832 is provided with connecting hole 5833, connecting hole It is interior to be provided with keyway 5834.

Claims (8)

1. a kind of cantilever crane with underslung trolley and with elevating arc transmission, including double girder bridge (28)；The double girder bridge Including end carriage (1), girder (2)；It is characterized in that：End carriage (1) both ends are designed with the cart driving dress with spline tooth wheel Put (8) and horizontal wheel apparatus (6)；Track (21) is provided with below the girder (2)；The track both ends welding car bumper (70), institute State and buffer (701) is connected on car stop；Underslung trolley (3) is connected on two tracks (21)；On the underslung trolley (3) Provided with the rotating mechanism (4) being driven with elevating arc；Suspension rod axle (42) lower end in the rotating mechanism connects with cantilever member (5) Connect；Suspension rod axle upper end connection safety ruler (583)；The the meeting and discussing to touch with travel switch (581) of the safety ruler is connected, two institutes State travel switch and be connected to trolley frame (31) above；Electric block (10), electric block energy edge are installed on the cantilever member (5) Cantilever beam to move back and forth；The cantilever beam is in operation outside extended workshop below the girder, and can revolve in the horizontal plane Turn；Electric frame (121) is chosen provided with some at the top of the double girder bridge, connection below electric frame is chosen and leads cable rail (124)；It is described to lead on cable rail Connect lashed cable (123).

A kind of 2. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, 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)；Described suspension rod axle one end is provided with screw thread, and the through hole (422) of diameter is provided through on screw thread；The suspension rod axle is by pushing away Power bearing (45) is connected to the bearing block (41) inside, and the suspension rod axle reconnects bearing A (44) and bearing B (46), described Bearing A and bearing B is connected to the both ends of above-mentioned bearing block by bolt and fixed cover (43) and blind flange (47) respectively, described Suspension rod axle one end is stretched from the fixed cover center, and the other end is stretched from above-mentioned blind flange center；The bearing block (41) It is bolted to by above-mentioned blind flange (47) on trolley frame (31)；Described drive device (40) is by motor and horizontal speed-reducer Combine, described drive device is arranged on trolley frame (31)；Described drive device output shaft is connected to small elevating arc (402), the small elevating arc is connected with big elevating arc (403) external toothing, and the big elevating arc is connected to above-mentioned suspension rod axle (42) One end.

A kind of 3. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, 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, or by The box-girder of steel plate welding is formed, and the cantilever beam both ends are provided with buffing pad (511).

A kind of 4. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, 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 (9)；Described Stop nut and suspension rod axle are connected with bolt (99) again, and the bolt (99) is through the straight of stop nut and suspension rod axle Footpath.

A kind of 5. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, 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.

A kind of 6. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, it is characterised in that： Described cart actuating device (8) includes wheel (81), reducing motor (83), and the wheel is two-wheel edge, in described wheel Portion is provided with spline tooth (811), and described wheel (81) both sides pass through bearing (82) and flange shaft (84), hollow flange axle respectively (85) connect, the ring flange of described flange shaft (84) and hollow flange axle (85) is connected to the both sides of end carriage (1)；It is described Bearing (82) outer ring is fixed on the wheel by back-up ring (86)；Set on the ring flange (851) of above-mentioned hollow flange axle (85) There is motor connection screw (852)；Reducing motor (83) the band splined output shaft (831) and above-mentioned wheel inner spline gear (811) Connection；Positioning concave ring (832) in flange seat on the reducing motor is inlayed with ring flange (851) external diameter in hollow flange axle It is embedding to connect and fastened by screw.

A kind of 7. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, it is characterised in that： Described horizontal wheel apparatus (6) includes horizontal wheels (61), wheel shaft (62), bearing (63), and a shaft shoulder is set inside the horizontal wheels (611), horizontal wheels are while band wheel rim, and wheel rim is installed down；Two horizontal wheels are arranged in track (601) tread Both sides, and gap coordinates；The horizontal wheels are connected by two bearings (64) with the wheel shaft (62)；The wheel shaft is arranged to one Hold the small and small one end of the big other end that jagged (621) are set；The small end branch sleeve (65) of the wheel shaft, the sleeve The big end of external diameter and above-mentioned wheel shaft is connected on the through hole (632) of above-mentioned bearing (63)；Two wheel shafts pass through respectively Locking plate (67) and it is bolted on bearing；The bearing bottom sets two engineer rooms (631), and through hole is opened up in the engineer room (632)；The bearing is provided with end carriage connecting hole (69)；Connection buffer (68) among the bearing.

A kind of 8. cantilever crane with underslung trolley and with elevating arc transmission according to claim 1, it is characterised in that： Described safety ruler (583) includes swing rod (5832) and met and discussed (5831), and described meet and discuss (5831) are arranged to arc shape, described The both ends met and discussed be set as symmetric bending shape；Described swing rod (5832) one end is provided with connecting hole (5833), is provided with connecting hole Keyway (5834).