CN107915151A - A kind of crane with lifting truck and underslung trolley and balance beam - Google Patents

Abstract

This application discloses a kind of crane with lifting truck and underslung trolley and 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；Track is equipped with below girder；Lifting truck and underslung trolley are connected with track；Underslung trolley is equipped with rotating mechanism；It is connected in rotating mechanism with cantilever member；Cantilever member is equipped with rotary limit device；Electric block is installed on cantilever member can simultaneously move along outrigger horizontal；Cantilever beam is in below girder and can rotate；Two are set on double girder bridge and chooses electric frame, two cable wire rails of connection between electric frame is chosen, lashed cable is connected with the cable wire rail.

Description

A kind of crane with lifting truck and underslung trolley and balance beam

Technical field

This application involves crane field, more particularly to a kind of with lifting truck and underslung trolley and balance beam Heavy-duty 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 trolley Upper hang carries out lifting cargo, and trolley 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 column, the cargo 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 cargo 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 a plane, can only turn at this time by other transporting equipments Fortune, usually drives workshop into by automobile and lifting cargo is carried out under suspension hook, some cars are opened to come in this workshop and next door workshop Between be laterally laid with track, allow trolley special to reach suspension hook and get off to join cargo, some is in workshop doorway (or workshop passageway) A special cantilever crane is set up, scheduling is transported through to the cargo outside workshop, first cargo is lifted up into and is hung in this workshop crane The place that hook is got at, then again by crane this cargo handling to the other stations in workshop, what is used under this operating mode shows There is bridge crane, cannot directly join cargo 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 crane with lifting truck and underslung trolley and balance beam, the lifting Machine is not only able in this workshop handling object up and down, additionally it is possible to lifts by crane this workshop directly below across outer by cart support rail beam The cargo in next door place, also can be in this workshop in cart running track direction direct lifting cargo in place outdoors, it is not necessary to by it Its transporting equipment is transported, and improves efficiency, and cargo can be unloaded the place for being placed on workshop needs, and the crane can be in low roofing Workshop uses；The crane does not tumble, runs and do not block, and large and small car operation is smooth, securely and reliably；The crane can also Enough facilitate handling elongate article.

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

A kind of crane with lifting truck and underslung trolley and balance beam, including double girder bridge 28；The twin beams bridge Frame includes 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 Connect and form；The cart actuating device 8 of 102 one end connect band splined sleeve of balance beam, 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 equipped with track 21, and the track is by work Word steel or H profile steel are formed；Lifting truck 01 and underslung trolley 3 are connected with two tracks 21；The lifting truck is equipped with Hook type lifting device；The underslung trolley 3 is equipped with rotating mechanism 4；Sunpender axis 42 and cantilever structure in the rotating mechanism Part 5 connects；Rotary limit device 58 is equipped between the cantilever member and underslung trolley 3；Installed on the cantilever member 5 electronic Cucurbit 10, electric block can be moved back and forth along outrigger horizontal；The cantilever beam is in extended workshop below the girder Outer operation, and can rotate in the horizontal plane；Respectively electric frame 121 is chosen in connection one to two end carriages 1 on double girder bridge, is chosen described in two Two cable wire rails 124 are connected between electric frame, lashed cable 123 is all connected with two cable wire rails.

Wherein, the rotating mechanism 4 includes driving device 40, bearing block 41, sunpender axis 42, the outside of bearing block 41 It is fixedly connected on underslung trolley 3；The lower end branch sleeve 43 of the inner hole of bearing seat；The middle part of sunpender axis 42 is equipped with the shaft shoulder 425；The sunpender axis is connected through 41 center of bearing block with thrust bearing 45, and the lower floor of the thrust bearing is connected to bearing block Top, its upper strata is connected with stop nut A44, the stop nut A bands dust cover 441, stop nut A and sunpender axle thread Connection, and connected by the diameter of bolt 46 through stop nut A and sunpender axis；The driving device 40 by motor with Vertical type speed reducer (change gear) is composed, and the driving device is connected on gear reducer bearing 401, and the gear reducer bearing is fixed on outstanding Hang on trolley 3；The driving device output shaft connects one end of above-mentioned sunpender axis by shaft coupling 48.

Wherein, the 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, the connecting hole is interior to be equipped with keyway 522；The Holder for hanging household utensiles other end is equipped 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 of I-steel, Or be made of H profile steel, the cantilever beam both ends are equipped with buffing pad 511.

Wherein, the cantilever member 5 is connected on the sunpender axis 42 of rotating mechanism by flat key 49 and stop nut B9； The stop nut B and sunpender axis is connected with bolt 99 again, and the bolt 99 is through stop nut B and sunpender axis Diameter.

Wherein, the underslung trolley 3 includes trolley frame 31, driving mechanism 34, roller devices 35；The trolley frame is by steel Plate is welded or is welded by steel plate and shaped steel combination；The trolley frame both sides connect the driving mechanism described in two sets respectively 34；The driving mechanism is connected on trolley frame by balance plate 32 and axis pin 33；On the side of every set driving mechanism on trolley frame Side reconnects a roller devices 35；The roller devices are in immediately below track 21；The driving 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 in 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 gear reducer, motor output shaft band gear；It is described Motor 341 is connected in left hanging plate, and motor output shaft is connected with above-mentioned two driving wheel external toothing at the same time.

Wherein, the cart actuating device 8 includes wheel 81, decelerating motor 83, and the wheel is two-wheel edge, described Inside wheel connects a splined sleeve 811, and 81 both sides of wheel pass through bearing 82 and flange shaft 84, hollow flange respectively Axis 85 connects, and the ring flange of the flange shaft 84 and hollow flange axis 85 is connected to the both sides of balance beam 102；It is described 82 outer ring of bearing is connected to logical lid 86, and the logical lid is bolted in the wheel face；Above-mentioned hollow flange axis 85 Ring flange 851 be equipped with motor connecting screw hole 852 and motor location hole 853；The decelerating motor 83 is with splined output shaft 831 It is connected with above-mentioned inside wheel splined sleeve 811；Positioning flange collar 832 and hollow flange in flange seat on the decelerating motor Motor location hole 853 in axis, which is inlayed, to be connected and is fastened by screw.

Wherein, the 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 downward；Two horizontal wheels are separately positioned on the both sides of 601 tread of track, clearance fit；The level Wheel is connected by bearing 64, shaft retaining ring 65, hole baffle ring 66 with the wheel shaft 62；Two wheel shafts pass through 67 He of locking plate respectively It is bolted on above-mentioned bearing 63；Connection buffer 68 among the bearing；The bearing is equipped with end carriage connecting hole 69.

The beneficial effect of the application is as described below：

The suspension hook on lifting truck (01) in the application can be usually used in this either inside cargo hoisting, because lifting cargo Center of gravity do not produce tilting moment in the underface of crane, crane and trolley, work can be improved using the operating mode of high speed Make efficiency, and available for lifting large-tonnage object；Lifting truck is acted on available for main lifting.

The cantilever beam of underslung trolley (3) can be stretched out between crane locomotive to outdoors or to next door workshop in the application crane Directly lift cargo；The next door workshop cargo of cart traffic direction endpoint can be not only lifted by crane, and cart operation can be lifted by crane The cargo in railway line side workshop；Since the cantilever beam of the application is arranged at below trolley and girder, cantilever beam can pass through support rail The direct lifting cargo in next door workshop is stretched into below beam, or can directly stretch out the workshop operation outdoors of cart traffic direction, because logical The door top in normal workshop can reach height where the support rail beam in this workshop substantially, therefore present techniques feature can realize the application Purpose；After lifting cargo, by movement of the electric block along cantilever beam, or the rotation by cantilever member, or pass through suspension The movement of trolley, or the movement by crane travelling mechanism, or by foregoing four integrated motion, can be lifting Cargo hangs onto the place of this workshop needs；Can not when carrying out cargo handing-over outdoors with the next door workshop of workshop surrounding or workshop The transhipment of other transporting equipments must be borrowed, improves efficiency.

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

The suspension hook on lifting truck (01) in the application crane and electric block (10) suspension hook on underslung trolley (3) With the use of handling elongate article can be facilitated.

Electric frame (121) of choosing on the application loading bridge is equipped with two groups of moveable lashed cables (123), one group of connection lifting Trolley (01) is powered, another group of connection underslung trolley (3) power supply.

Horizontal wheel apparatus in the application crane is installed 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, the wheel rim of horizontal wheels catches on running track at this time, 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 such combination supporting multigroup wheel of end carriage, can use the wheel group of small-wheel-diameter, make the sectional dimension of end carriage small, be 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 of the application is new It is clever, compact, assembly and disassembly it is convenient；The splined sleeve (811) of inside wheel loads inside wheel after individually processing, and can dismantle；Spline housing The small good processing of cylinder size, can make, long lifespan replacement cost is low of special wear-resistant material；The bearing of wheel is solid by logical lid connection It is fixed more firm；Hollow flange axis is hollow, and drive shaft passes therethrough；Ring flange (851) on hollow flange axis had both been used for End carriage is connected, and for connecting decelerating motor, positions decelerating motor；The output shaft of decelerating motor passes through hollow flange shaft hollow hole It is connected with the splined sleeve of inside wheel and directly drives wheel；Positioning flange collar on decelerating motor, which is inlayed, is connected to hollow flange In the motor location hole (853) of axis, the connecting hole on decelerating motor flange seat leads to the motor connecting screw hole on hollow flange axis Bolt is crossed to be tightly coupled together；The decelerating motor of this structure is especially adapted to planetary reduction gear, and structure is small, and noise is small；So slow down Connect not only simple but also firmly between motor and wheel, concentricity is good, takes up space small, ensures that wheel steadily operates, operating is vibrated It is small, noise is small.

Underslung trolley (3) in the application can be moved back and forth along girder both ends, be suitable for big width workshop and used；Suspension Driving mechanism (34) on trolley can be in whole set procurement standarized component on the market, supporting facility；Driving wheel, quilt in driving 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 trolley side two sets of driving mechanisms of installation to be connected on same track, and roller devices are installed beside every set driving mechanism (35), its be advantageous in that can avoid single driving be possible to because trolley somewhat upwarp on one side adhesion wheel not the race that produces rail not Dynamic phenomenon, double drive ensure that trolley travelling is smooth；Roller devices can limit underslung trolley while the degree upwarped, ensures that suspension is small Car is stablized, 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), By adjusting the appropriate height for choosing electric frame, lashed cable can be solved and most preferably hang height and position；Cable wire rail is to make track using steel wire rope, Cost is low；Girder track termination car bumper can limit the stroke of underslung trolley, increase safety.

Bearing block and sunpender axis connection in the application rotating mechanism bear gravity by thrust bearing, and thrust bearing is installed on Bearing block top, it is easy to disassemble；The inner hole structure of bearing block is simply easy to process；Sleeve (43) makees sliding bearing for wear-resistant material Use, reduce the fit clearance of sunpender axis, increase rotational stabilization, increase the concentricity of driving 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；Drive in rotating mechanism Dynamic device output shaft is increased degree of flexibility, is improved between driving device and sunpender axis by shaft coupling (48) and sunpender axis connection Malalignment regulating power.

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；Rotary limit device (58) is equipped between cantilever member and underslung trolley, cantilever beam can be avoided excessively to rotate, i.e., not The rotation of more than 360 degree angles, prevents from being pulled on Holder for hanging household utensiles (52) that the cable (100) of electric block is wrapped in cantilever member It is disconnected because the cable (100) of electric block be draw from the junction box on underslung trolley it is ensuing；Cantilever member connects with sunpender axis After connecing, after positioning is connected with sunpender axle thread by stop nut B, then with bolt (99) through stop nut B and sunpender axis Diameter connects, and avoids stop nut B from loosening, securely and reliably.

Brief description of the drawings

Fig. 1 is the application structural front view；

Fig. 2 is the side view (not representing horizontal wheel apparatus) of Fig. 1；

Fig. 3 is the top view of Fig. 1；

Fig. 4 is F partial enlarged views (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 the side view of Fig. 6；

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 wheels apparatus structure front view in the application；

Figure 11 is the side view of Figure 10.

Embodiment

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

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of crane with lifting truck and underslung trolley and balance beam, including twin beams Crane span structure 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 102 one end connect band splined sleeve of balance beam, 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 equipped with track 21, the track It is made of I-steel or H profile steel；Lifting truck 01 and underslung trolley 3 are connected with two tracks 21；The lifting truck Equipped with hook type lifting device；The underslung trolley 3 is equipped with rotating mechanism 4；Sunpender axis 42 in the rotating mechanism is with hanging Arm member 5 connects；Rotary limit device 58 is equipped between the cantilever member and underslung trolley 3；Installed on the cantilever member 5 Electric block 10, electric block can be moved back and forth along outrigger horizontal；The cantilever beam is in extended below the girder Operation outside workshop, and can rotate in the horizontal plane；Respectively electric frame 121, two institutes are chosen in connection one to two end carriages 1 on double girder bridge State to choose and two cable wire rails 124 are connected between electric frame, lashed cable 123 is all connected with two cable wire rails.

As shown in figure 4, the rotating mechanism 4 includes driving device 40, bearing block 41, sunpender axis 42, the bearing block 41 outsides are fixedly connected on underslung trolley 3；The lower end branch sleeve 43 of the inner hole of bearing seat；The middle part of sunpender axis 42 is set There is the shaft shoulder 425；The sunpender axis is connected through 41 center of bearing block with thrust bearing 45, and the lower floor of the thrust bearing is connected to The top of bearing block, its upper strata are connected with stop nut A44, the stop nut A bands dust cover 441, stop nut A and sunpender Axle thread connects, and is connected by the diameter of bolt 46 through stop nut A and sunpender axis；The driving device 40 by Motor is composed with vertical type speed reducer (change gear), and the driving device is connected on gear reducer bearing 401, and the gear reducer bearing is consolidated It is scheduled on underslung trolley 3；The driving device output shaft connects one end of above-mentioned sunpender axis by shaft coupling 48.

The cantilever member 5 is connected on the sunpender axis 42 in rotating mechanism by flat key 49 and stop nut B9；Institute The stop nut B and sunpender axis stated is connected with bolt 99 again, and the bolt is through the straight of stop nut B and sunpender axis Footpath.

As shown in figure 5, the cantilever member 5 includes cantilever beam 51, Holder for hanging household utensiles 52；The Holder for hanging household utensiles one sets connection Hole 521, the connecting hole is interior to be equipped with keyway 522；The Holder for hanging household utensiles other end is equipped 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 of H profile steel, the cantilever beam both ends are equipped with buffing pad 511.

As shown in Fig. 6, Fig. 7, Fig. 8, the underslung trolley 3 includes trolley frame 31, driving 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 The driving mechanism 34；The driving mechanism is connected on trolley frame by balance plate 32 and axis pin 33；Every on trolley frame The side for covering driving 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 in 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 gear reducer, motor output shaft Band gear；The motor 341 is connected in left hanging plate, and motor output shaft is connected with above-mentioned two driving wheel external toothing at the same time.

As shown in figure 9, the cart actuating device 8 includes wheel 81, decelerating motor 83, the wheel is two-wheel edge, The inside wheel connects a splined sleeve 811, and 81 both sides of wheel pass through bearing 82 and flange shaft 84, sky respectively Heart flange shaft 85 connects, and the ring flange of the flange shaft 84 and hollow flange axis 85 is connected to the two of balance beam 102 Side；82 outer ring of bearing is connected to logical lid 86, and the logical lid is bolted in the wheel face；Above-mentioned hollow method The ring flange 851 of blue axis 85 is equipped with motor connecting screw hole 852 and motor location hole 853；The decelerating motor 83 is defeated with spline Shaft 831 is connected with above-mentioned inside wheel splined sleeve 811；Positioning flange collar 832 in flange seat on the decelerating motor with Motor location hole 853 in hollow flange axis, which is inlayed, to be connected and is fastened by screw.

As shown in Figure 10, Figure 11, the 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 downward；Two horizontal wheels are separately positioned on the both sides of 601 tread of track, and gap is matched somebody with somebody Close；The horizontal wheels are connected by bearing 64, shaft retaining ring 65, hole baffle 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 equipped with end Beam connecting hole 69.

Claims (7)

1. a kind of crane with lifting truck and underslung trolley and balance beam, including double girder bridge (28)；The twin beams bridge Frame includes end carriage (1), girder (2)；It is characterized in that：The end carriage (1) is by two balance beams (102) and a middle connection Bar (101) is formed by connecting；The cart actuating device (8) of described balance beam (102) one end connect band splined sleeve, the other end connect Connect passive wheel group (18)；Two of the end carriage (1) respectively connects a set of horizontal wheel apparatus (6)；It is equipped with below the girder (2) Track (21), the track are made of I-steel or H profile steel；Lifting truck (01) is connected with two tracks (21) and is hanged Hang trolley (3)；The lifting truck is equipped with hook type lifting device；The underslung trolley (3) is equipped with rotating mechanism (4)；Institute The sunpender axis (42) stated in rotating mechanism is connected with cantilever member (5)；Rotation is equipped between the cantilever member and underslung trolley (3) Turn limiting device (58)；Electric block (10) is installed, electric block can be along outrigger horizontal back and forth on the cantilever member (5) Movement；The cantilever beam is in operation outside extended workshop below the girder, and can rotate in the horizontal plane；On double girder bridge Two end carriages (1) respectively electric frame (121) is chosen in connection one, chosen described in two and two cable wire rails (124) connected between electric frame, it is described Lashed cable (123) is all connected with two cable wire rails.

2. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The rotating mechanism (4) includes driving device (40), bearing block (41), sunpender axis (42), bearing block (41) outside It is fixedly connected on underslung trolley (3)；The lower end branch sleeve (43) of the inner hole of bearing seat；Set in the middle part of the sunpender axis (42) There is the shaft shoulder (425)；The sunpender axis is connected through bearing block (41) center with thrust bearing (45), the lower floor of the thrust bearing The top of bearing block is connected to, its upper strata is connected with stop nut A (44), the stop nut A band dust covers (441), locking Nut A is connected with sunpender axle thread, and is connected by the diameter of bolt (46) through stop nut A and sunpender axis；It is described Driving device (40) be composed of motor and vertical type speed reducer (change gear), the driving device is connected to gear reducer bearing (401) On, the gear reducer bearing is fixed on underslung trolley (3)；The driving device output shaft passes through in shaft coupling (48) connection State one end of sunpender axis.

3. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The cantilever member (5) includes cantilever beam (51), Holder for hanging household utensiles (52)；The Holder for hanging household utensiles one sets connecting hole (521), Keyway (522) is equipped with the connecting hole；The Holder for hanging household utensiles other end is equipped with operation window (523)；The Holder for hanging household utensiles (52) This head of operation window is welded on one end of the cantilever beam (51)；The cantilever beam is made of I-steel, or is made of H profile steel, The cantilever beam both ends are equipped with buffing pad (511).

4. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The cantilever member (5) is connected on the sunpender axis (42) of rotating mechanism by flat key (49) and stop nut B (9)；Institute The stop nut B and sunpender axis stated is connected with bolt (99) again, and the bolt (99) passes through stop nut B and sunpender axis Diameter.

5. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The underslung trolley (3) includes trolley frame (31), driving mechanism (34), roller devices (35)；The trolley frame is by steel plate It is welded or is welded by steel plate and shaped steel combination；The trolley frame both sides connect the driving mechanism described in two sets respectively (34)；The driving mechanism is connected on trolley frame by balance plate (32) and axis 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 driving 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 in 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 in left hanging plate, motor output shaft at the same time with above-mentioned two master Driving wheel external toothing connects.

6. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The cart actuating device (8) includes wheel (81), decelerating motor (83), and the wheel is two-wheel edge, the wheel One splined sleeve (811) of inside connection, the wheel (81) both sides are respectively by bearing (82) and flange shaft (84), hollow Flange shaft (85) connects, and the ring flange of the flange shaft (84) and hollow flange axis (85) is connected to balance beam (102) both sides；Bearing (82) outer ring is connected to logical lid (86), and the logical lid is bolted on the wheel face On；The ring flange (851) of above-mentioned hollow flange axis (85) is equipped with motor connecting screw hole (852) and motor location hole (853)；Institute Decelerating motor (83) band splined output shaft (831) is stated to be connected with above-mentioned inside wheel splined sleeve (811)；On the decelerating motor Flange seat in positioning flange collar (832) inlay and be connected and tight by screw with the motor location hole (853) in hollow flange axis Gu.

7. a kind of crane with lifting truck and underslung trolley and balance beam according to claim 1, its feature exist In：The horizontal wheel apparatus (6) includes horizontal wheels (61), wheel shaft (62), bearing (63), the horizontal wheels on one side with wheel rim, And wheel rim is installed downward；Two horizontal wheels are separately positioned on the both sides of track (601) tread, clearance fit；The level Wheel is connected by bearing (64), shaft retaining ring (65), hole baffle ring (66) with the wheel shaft (62)；Two wheel shafts are respectively by only Movable plate (67) and it is bolted on above-mentioned bearing (63)；Connection buffer (68) among the bearing；The bearing is equipped with End carriage connecting hole (69).