CN107352421A

CN107352421A - A kind of semi portal bridge-type cantilever crane with running trolley and balance beam

Info

Publication number: CN107352421A
Application number: CN201610300189.5A
Authority: CN
Inventors: 卢统华
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-09
Filing date: 2016-05-09
Publication date: 2017-11-17

Abstract

This application discloses a kind of semi portal bridge-type cantilever crane with running trolley and balance beam, including an end carriage, two girders, a supporting rack, and it forms semi portal；Include sill on the supporting rack；Wherein it is provided with the outside of a girder and chooses electric frame, is chosen electric frame and be provided with lashed cable；Track is provided with above two girders, running trolley is connected on track；End carriage is formed by connecting by two balance beams and a middle connecting rod；Sill is formed by connecting by two balance grade beams and a middle tie-beam by connecting shaft；Cart actuating device and passive wheel group are connected on balance beam and balance grade beam；Girder lateral surface sets siding track；The lower section gap connection safety hook of siding track, safety hook one end is connected on running trolley；Running trolley is provided with rotating mechanism；Suspension rod axle lower end is connected with cantilever member, upper end connection safety ruler；Electric block is installed on cantilever member and can be moved back and forth along outrigger horizontal；Cantilever beam is placed in below girder and can rotated.

Description

A kind of semi portal bridge-type cantilever crane with running trolley and balance beam

Technical field

The application is related to crane field, more particularly to a kind of semi portal bridge-type cantilever lifting with running trolley 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 production, production Product and raw material are required for Real-Time Transport to next door workshop or other departments；Under the suspension hook of crane on workshop is hung from dolly To carry out lifting goods, dolly can only be run back and forth along crane twin beams, and crane can only be along big on the end bay post of workshop two Track road is run back and forth, and the goods scope that such crane hook can lift is surrounded in the two-end-point of the two cart tracks in workshop Plane within, when being in the goods of this horizontal edge needs lifting, suspension hook just produces oblique pull, then remote from outside this plane The article (such as workshop outdoors, across outer) of point cannot lift, and can only now be transported by other transporting equipments, generally by vapour Car drives workshop into and carries out lifting goods under suspension hook, and some cars open to come in the horizontal laid rail between this workshop and next door workshop Road, allow trolley special to reach suspension hook and get off to join goods, some is special outstanding in workshop doorway (or workshop passageway) erection one Arm is hung, and scheduling is transported through to the goods outside workshop, first goods is lifted up into the place that this workshop crane suspension hook is got at, Then again by crane this goods handling to the other stations in workshop, the existing bridge crane that is used under this operating mode, with every Wall workshop can not directly join goods, must be by other transporting equipment schedule jobs, and it is quite inconvenient to bring, and also produces manpower and materials Waste.

The content of the invention

The application aims to overcome that in place of above-mentioned the deficiencies in the prior art and provides a kind of half with running trolley and balance beam Bridge type cantilever crane, the lifting function lift by crane goods of this workshop across outer next door place directly below by cart support rail beam Thing, also can be in this workshop in cart running track direction direct lifting cargo in place outdoors, it is not necessary to transported by other transporting equipments, Efficiency is improved, and goods can be unloaded the place for being placed on workshop needs；The cantilever beam rotary speed of the crane can accurately reach use Family demand.

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

A kind of semi portal bridge-type cantilever crane with running trolley and balance beam, including 1, two girder 2, one of an end carriage Individual supporting rack 100, it forms semi portal 28；Include sill 300 on the supporting rack；Wherein it is provided with and chooses on the outside of a girder Electric frame 121, choose electric frame and be provided with mobile lashed cable 123；Track 21 is provided with above two girders, is connected on track Running trolley 3；It is characterized in that：The end carriage 1 is formed by connecting by two balance beams 102 and a middle connecting rod 101； The sill 300 is formed by connecting by two balance grade beams 302 and a middle tie-beam 301 by connecting shaft 303；It is described The cart actuating device 8 of balance beam 102 and the balance one end connect band connecting shaft wheel of grade beam 302, other end connect band connecting shaft car The passive wheel group 18 of wheel；The lateral surface of two girders all sets siding track 22；The lower section gap connection safety hook of siding track 33, described safety hook one end is connected on running trolley 3；The running trolley is driven using ZSC types reductor；The operation Dolly is provided with the rotating mechanism 4 with elevating arc transmission；The lower end of suspension rod axle 42 in the rotating mechanism is connected with cantilever member 5, Upper end connects safety ruler 583；Electric block 10 is installed, electric block can be along the cantilever on cantilever member on the cantilever member Beam horizontal traversal；The cantilever beam is in operation outside extended workshop below two girders, and can revolve in the horizontal plane Turn.

Wherein, described running trolley 3 includes 31, two sets of drive cars 32 of trolley frame；The trolley frame 31 is by steel plate Plate structure is welded into shaped steel combination；The trolley frame center is provided with assembling window 311 and is used to install rotating mechanism, trolley frame two Side transverse side is both provided with connecting seat 312, and connecting seat is provided with flange hole 3121, and trolley frame both sides longitudinal side is provided with buffering Device 313；Foregoing two sets of drive cars 32 are connected to the both ends of trolley frame；Drive car 32 includes ZSC types Reductor 321, adhesion wheel group 322, motor 323；Described ZSC types reductor 321 is fixed on trolley frame 31；ZSC The both sides output shaft of type reductor is connected by shaft coupling 326 with adhesion wheel group 322 respectively, and two adhesion wheel groups connect It is connected on below trolley frame；The input shaft of the ZSC types reductor is connected with the motor 323, on the rear output shaft of the motor It is connected with braked wheel 324, connecting brake 325 on the braked wheel.

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 bearing block 41 is fixedly connected on running trolley 3；The lower end branch sleeve 43 of the inner hole of bearing seat； The middle part of suspension rod axle 42 is provided with the shaft shoulder 425；The suspension rod axle is connected through the center of bearing block 41 with thrust bearing 45；It is described The lower floor of thrust bearing is connected to the top of bearing block, and its upper strata is connected with stop nut A44；The stop nut A is with dust-proof Cover 441, stop nut A is connected with suspension rod axle thread, and 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 bearing 401 are fixed on running trolley 3；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 is connected, and the big elevating arc is connected on 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 521 of Holder for hanging household utensiles, Keyway 522 is provided with described connecting hole；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 made up of I-steel, or It is 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 on the suspension rod axle 42 of rotating mechanism by flat key 49 and stop nut 9；Institute The stop nut and suspension rod axle stated are connected with bolt 99 again, and the bolt passes through the diameter of stop nut and suspension rod axle.

Wherein, described cart actuating device 8 includes connecting shaft wheel 81, inner flange seat 82, reducing motor 83, described company Axle wheel 81 is double wheel rims, and connecting shaft wheel center is provided with axis hole 811, and the shaft extension 812 of the connecting shaft wheel both sides connects respectively Then the inner ring of bearing 84；The outer ring of the bearing is connected on inner flange seat 82；Ring flange on two inner flange seats It is connected to the inwall of the both sides of balance beam 102；The described output shaft 831 of reducing motor 83 is parallel with motor shaft, output shaft It is connected in the axis hole 811 of above-mentioned connecting shaft wheel, the fixing hole on the reducing motor top by bolt and cushion pad 85 and is fixed Seat 86 connects；The fixed seat 86 is welded in balance beam or the side wall for balancing grade beam.

Wherein, described passive wheel group 18 includes connecting shaft wheel 181, inner flange seat 182, and described connecting shaft wheel 181 is Double wheel rims, the shaft extension 1811 of the connecting shaft wheel both sides respectively connected the inner ring of bearing 183；The outer ring of the bearing connects It is connected on the inner chamber of inner flange seat 182；Ring flange on two inner flange seats is connected to balance beam or balance grade beam Side wall on.

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；Not only The next door workshop goods of cart traffic direction end points can be lifted by crane, and the goods in cart running track line side workshop can be lifted by crane； Because the cantilever beam of the application is arranged at below dolly and girder, cantilever beam can directly be risen by stretching into next door workshop below support rail beam Hoisting thing, or the workshop operation outdoors of cart traffic direction can be directly stretched out, therefore present techniques feature can realize the application Purpose；After lifting goods, by motion of the electric block along cantilever beam, or the rotation by cantilever member, or pass through operation The movement of dolly, or the motion by crane, or by foregoing four integrated motion, the goods of lifting can be hung The place needed to this workshop；It need not can be borrowed when carrying out goods handing-over outdoors with the next door workshop of workshop surrounding or workshop other The transhipment of transporting equipment, improve efficiency.

Running trolley (3) in the application can move back and forth in the top of girder along girder both ends, be suitable for large span car Between use；Running trolley both sides set safety hook (33) that cantilever beam can be avoided to overload and produce running trolley and upwarp, and ensure operation Dolly catches on girder siding track and not dropped, so as to ensure that crane is safe to use；Running trolley sets two sets of drive cars (32), can avoid single driving be possible to because dolly somewhat upwarp adhesion wheel not rail and caused by can't run phenomenon, ensure dolly Run smooth；ZSC type reductors are used in the application drive car, the series reduction is versatile, stable performance, Cheap buying is very convenient.

The lashed cable (123) chosen on electric frame (121) connection beside the cable and girder on running trolley in the application, lashed cable Upper connection coaster can move back and forth lashed cable or so, and such electric power can run power supply back and forth by lashed cable with running trolley.

The cantilever crane of the application be suitable for workshop only have set up on the metope column of one side bracket laying track, another side uses car Between track environment；Cart actuating device is run on column track on end carriage in crane semi portal, the cart on sill Drive device is run in the track of workshop；Cantilever beam can reach next door workshop among supporting rack and be lifted or unloaded goods.

End carriage in the application crane is formed by connecting using two balance beams (102) and a middle connecting rod (101)；Under Crossbeam is formed by connecting by two balance grade beams (302) and a middle tie-beam (301)；Such supporting multigroup car of combination beam Wheel, the wheel group of small-wheel-diameter can be used, makes that the sectional dimension of combination beam is small, and constructions cost is low, and can solve crane large-tonnage Small wheel load problem.

End carriage both ends in the application crane all set cart actuating device, ensure that cart operation is smooth, when avoiding unilateral driving Because end carriage may upwarp, driving wheel not rail produce idle running phenomenon；Cart actuating device (8) structure of the application is novel, practical Property is strong；The wheel body of connecting shaft wheel is once swaged into wheel shaft, simple in construction, is especially suitable for path wheel, the ring flange of inner flange seat It is that can stand very big axial float inner flange seat all without departing from position, the connection of inner flange seat to be connected to benefit on the inside of end carriage Bolt need not bear big axial tension, and wheel alignment is good；The output shaft of reducing motor can be flat key axle or splined shaft or double Key axle, according to torque different situations, rationally coordinate with wheel axis hole；Reducing motor is connected on end carriage by cushion pad, Due to the cushioning effect of cushion pad, alleviate reducing motor and start, brake generation impact shock, protect drive device.

Passive wheel group on the application end carriage uses connecting shaft wheel, and wheel body is once swaged into wheel shaft, simple in construction, is especially suitable for Path wheel.

Rotary limit device is provided between suspension rod axle and trolley frame in the application, by safety ruler (583) and two travel switches (581) form, safety ruler is arranged on suspension rod axle upper end, and travel switch is arranged on trolley frame upper surface, is more convenient installation and adjustment； There is rotary limit device, cantilever beam can be avoided excessively to rotate, prevent the cable (6) of electric block to be wrapped in cantilever member Be torn on Holder for hanging household utensiles (52) because the cable (6) of electric block be draw from the junction box on trolley frame it is ensuing.

There is the gear auxiliary driving of a pair of elevating arc transmissions in rotating mechanism in the application crane, pass through big elevating arc, small fan tooth The different numbers of teeth setting of wheel, can meet precise requirements of the user to the cantilever beam rotary speed of crane, 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 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, The fit clearance of suspension rod axle is reduced, increases rotational stabilization, increases the axiality of drive mechanism, cantilever member rotates laborsaving；It is anti- Loose nut A band dust covers (441) give bearing proofing dust and protecting, while can seal the butter in bearing；Stop nut A connects with suspension rod axle After connecing, then the connection by bolt (46), anti-loose effect is played, ensures rotating mechanism safety.

Cantilever member in the application is with after suspension rod axis connection, after connecting positioning with suspension rod axle thread by stop nut, then using spiral shell The diameter of bolt (99) through stop nut and suspension rod axle connects, and avoids stop nut from loosening, 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 running trolley front view in the application；

Fig. 5 is Fig. 4 top view；

Fig. 6 is F partial enlarged drawings in Fig. 1；

Fig. 7 is cantilever member schematic diagram in the application；

Fig. 8 is cart actuating device schematic diagram in the application；

Fig. 9 is passive wheel group schematic diagram 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 semi portal bridge-type cantilever crane with running trolley and balance beam, including one The supporting rack 100 of girder 2, one of bar end carriage 1, two, it forms semi portal 28；Include sill 300 on the supporting rack； Wherein it is provided with the outside of a girder and chooses electric frame 121, is chosen electric frame and be provided with mobile lashed cable 123；It is provided with above two girders Track 21, running trolley 3 is connected on track；The end carriage 1 is by two balance beams 102 and a middle connecting rod 101 It is formed by connecting；The sill 300 is connected by two balance grade beams 302 and a middle tie-beam 301 by connecting shaft 303 Form；The cart actuating device 8 of the balance beam 102 and the balance one end connect band connecting shaft wheel of grade beam 302, the other end connect The passive wheel group 18 of tape splicing connecting shaft wheel；The lateral surface of two girders all sets siding track 22；The lower section gap of siding track Safety hook 33 is connected, described safety hook one end is connected on running trolley 3；The running trolley is driven using ZSC types reductor； The running trolley is provided with the rotating mechanism 4 with elevating arc transmission；The lower end of suspension rod axle 42 and cantilever structure in the rotating mechanism Part 5 connects, upper end connection safety ruler 583；Electric block 10 is installed, electric block can be along cantilever structure on the cantilever member Outrigger horizontal on part moves back and forth；The cantilever beam is in operation outside extended workshop below two girders, and can be Rotated on horizontal plane.

As shown in Figure 4, Figure 5, described running trolley 3 includes 31, two sets of drive cars 32 of trolley frame；The dolly Frame 31 is welded into plate structure by steel plate and shaped steel combination；The trolley frame center is provided with assembling window 311 and is used to install rotating mechanism, Trolley frame both sides transverse side is both provided with connecting seat 312, and connecting seat is provided with flange hole 3121, trolley frame both sides longitudinal side Provided with buffer 313；Foregoing two sets of drive cars 32 are connected to the both ends of trolley frame；Drive car 32 wraps Include ZSC types reductor 321, adhesion wheel group 322, motor 323；Described ZSC types reductor 321 is fixed on trolley frame 31 On；The both sides output shaft of ZSC type reductors is connected by shaft coupling 326 with adhesion wheel group 322 respectively, two actives Wheel group is connected to below trolley frame；The input shaft of the ZSC types reductor is connected with the motor 323, after the motor It is connected with braked wheel 324 on output shaft, connecting brake 325 on the braked wheel.

As shown in fig. 6, described rotating mechanism 4 includes drive device 40, small elevating arc 402, big elevating arc 403, bearing Seat 41, suspension rod axle 42；The bearing block 41 is fixedly connected on running trolley 3；The lower end adapter sleeve of the inner hole of bearing seat Cylinder 43；The middle part of suspension rod axle 42 is provided with the shaft shoulder 425；The suspension rod axle is connected through the center of bearing block 41 with thrust bearing 45； The lower floor of the thrust bearing is connected to the top of bearing block, and its upper strata is connected with stop nut A44；The stop nut A bands Dust cover 441, stop nut A are connected with suspension rod axle thread, and the diameter of stop nut A and suspension rod axle is passed through by bolt 46 Connect；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 running trolley 3；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 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 9；Described is anti- Loose nut and suspension rod axle is connected with bolt 99 again, and the bolt passes through the diameter of stop nut and suspension rod axle.

As shown in fig. 7, 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.

As shown in figure 8, described cart actuating device 8 includes connecting shaft wheel 81, inner flange seat 82, reducing motor 83, institute The connecting shaft wheel 81 stated is double wheel rims, and connecting shaft wheel center is provided with axis hole 811, the shaft extension 812 of the connecting shaft wheel both sides It respectively connected the inner ring of bearing 84；The outer ring of the bearing is connected on inner flange seat 82；On two inner flange seats Ring flange is connected to the inwall of the both sides of balance beam 102；The described output shaft 831 of reducing motor 83 is parallel with motor shaft, Output shaft is connected in the axis hole 811 of above-mentioned connecting shaft wheel, and the fixing hole on the reducing motor top passes through bolt and cushion pad 85 It is connected with fixed seat 86；The fixed seat 86 is welded in balance beam or the side wall for balancing grade beam.

As shown in figure 9, described passive wheel group 18 includes connecting shaft wheel 181, inner flange seat 182, described connecting shaft wheel 181 be double wheel rims, and the shaft extension 1811 of the connecting shaft wheel both sides respectively connected the inner ring of bearing 183；The bearing Outer ring is connected on the inner chamber of inner flange seat 182；Ring flange on two inner flange seats is connected to balance beam or flat Weigh in the side wall of grade beam.

Claims

1. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam, including an end carriage (1), two girders (2) a, supporting rack (100), it forms semi portal (28)；Include sill (300) on the supporting rack；Wherein one It is provided with the outside of girder and chooses electric frame (121), is chosen electric frame and be provided with mobile lashed cable (123)；Rail is provided with above two girders Road (21), running trolley (3) is connected on track；It is characterized in that：The end carriage (1) is by two balance beams (102) It is formed by connecting with a middle connecting rod (101)；The sill (300) is by two balance grade beams (302) and centre one Tie-beam (301) is formed by connecting by connecting shaft (303)；The balance beam (102) and balance grade beam (302) one end The cart actuating device (8) of connect band connecting shaft wheel, the passive wheel group (18) of other end connect band connecting shaft wheel；Described two The lateral surface of girder all sets siding track (22)；The lower section gap connection safety hook (33) of siding track, described safety hook one end connect It is connected on running trolley (3)；The running trolley is driven using ZSC types reductor；The running trolley is provided with band elevating arc The rotating mechanism (4) of transmission；Suspension rod axle (42) lower end in the rotating mechanism is connected with cantilever member (5), upper end connection Safety ruler (583)；Electric block (10) is installed, electric block can be along the cantilever beam water on cantilever member on the cantilever member It is flat to move back and forth；The cantilever beam is in operation outside extended workshop below two girders, and can rotate in the horizontal plane.

2. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1, its feature It is：Described running trolley (3) includes trolley frame (31), two sets of drive cars (32)；The trolley frame (31) Plate structure is welded into by steel plate and shaped steel combination；The trolley frame center is provided with assembling window (311), trolley frame both sides cross side Face is both provided with connecting seat (312), and connecting seat is provided with flange hole (3121), and trolley frame both sides longitudinal side is provided with buffer (313)；Foregoing two sets of drive cars (32) are connected to the both ends of trolley frame；Drive car (32) includes ZSC types reductor (321), adhesion wheel group (322), motor (323)；Described ZSC types reductor (321) is fixed on On trolley frame (31)；The both sides output shaft of ZSC type reductors passes through shaft coupling (326) and adhesion wheel group (322) respectively Connection, two adhesion wheel groups are connected to below trolley frame；The input shaft of the ZSC types reductor and the motor (323) Connection, is connected with braked wheel (324) on the rear output shaft of the motor, connecting brake (325) on the braked wheel.

3. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1, its feature It is：Described rotating mechanism (4) includes drive device (40), small elevating arc (402), big elevating arc (403), bearing Seat (41), suspension rod axle (42)；The bearing block (41) is fixedly connected on running trolley (3)；The inner hole of bearing seat Lower end branch sleeve (43)；The shaft shoulder (425) is provided with the middle part of the suspension rod axle (42)；The suspension rod axle passes through bearing block (41) Center is connected with thrust bearing (45)；The lower floor of the thrust bearing is connected to the top of bearing block, its upper strata and stop nut A (44) connections；The stop nut A band dust covers (441), stop nut A is connected with suspension rod axle thread, and passes through bolt (46) Diameter through stop nut A and suspension rod axle connects；Described drive device (40) is combined by motor with horizontal speed-reducer Form, described drive device is fixed on running trolley (3) by reductor bearing (401)；Described drive device is defeated Shaft is connected to small elevating arc (402), and the small elevating arc is connected with big elevating arc (403) external toothing, and the big elevating arc connects It is connected on above-mentioned suspension rod axle (42).

4. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1, its feature It is：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), Keyway (522) is provided with described connecting hole；The Holder for hanging household utensiles other end is provided with operation window (523)；The Holder for hanging household utensiles (52) Operation window this head be welded on one end of the cantilever beam (51)；The cantilever beam is made up of I-steel, or by H profile steel structure Into, or the box girder structure welded by steel plate, the cantilever beam both ends are provided with buffing pad (511).

5. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1,4, its It is characterised by：Described cantilever member (5) is connected on suspension rod axle (42) 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) passes through stop nut and suspension rod The diameter of axle.

6. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1, its feature It is：Described cart actuating device (8) includes connecting shaft wheel (81), inner flange seat (82), reducing motor (83), institute The connecting shaft wheel (81) stated is double wheel rims, and connecting shaft wheel center is provided with axis hole (811), the axle of the connecting shaft wheel both sides Stretch the inner ring that (812) respectively connected bearing (84)；The outer ring of the bearing is connected on inner flange seat (82)；Two institutes State the inwall that the ring flange on inner flange seat is connected to balance beam (102) both sides；Described reducing motor (83) output Axle (831) is parallel with motor shaft, and output shaft is connected in the axis hole (811) of above-mentioned connecting shaft wheel, the reducing motor top Fixing hole be connected by bolt and cushion pad (85) with fixed seat (86)；The fixed seat (86) is welded on balance beam Or in the side wall of balance grade beam.

7. a kind of semi portal bridge-type cantilever crane with running trolley and balance beam according to claim 1, its feature It is：Described passive wheel group (18) includes connecting shaft wheel (181), inner flange seat (182), described connecting shaft wheel (181) For double wheel rims, the shaft extension (1811) of the connecting shaft wheel both sides respectively connected the inner ring of bearing (183)；The bearing Outer ring be connected on the inner chamber of inner flange seat (182)；Ring flange on two inner flange seats is connected to balance beam Or in the side wall of balance grade beam.