CN107352406A - A kind of semi portal crane with running trolley - Google Patents

Abstract

This application discloses a kind of semi portal crane with running trolley, including the semi portal that an end carriage, two girders, a supporting rack form；Include grade beam on supporting rack；It is provided with the outside of one girder and chooses electric frame；Track is provided with above girder, running trolley is connected on track；End carriage connects cart actuating device and passive wheel group and buffer with grade beam；The lateral surface of girder is provided with siding track；The lower section connection safety hook of siding track；Safety hook is connected on the running trolley with rotating mechanism；Suspension rod axle lower end in rotating mechanism is connected with cantilever member, upper end connection safety ruler；Cantilever beam in cantilever member is welded by I-steel or is welded by H profile steel；Cantilever beam is fixedly connected with buffer close to Holder for hanging household utensiles one end, and the other end connects car bumper device and position is adjustable；Motor hoist is connected on cantilever beam and can be moved along outrigger horizontal；Cantilever beam is in below girder and can rotated.

Description

A kind of semi portal crane with running trolley

Technical field

The application is related to crane field, more particularly to a kind of semi portal crane with running trolley.

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 semi portal crane with running trolley, The lifting function lifts by crane goods of this workshop across outer next door place directly below by cart support rail beam, can also be run in cart This workshop of orbital direction direct lifting cargo in place outdoors, it is not necessary to transported by other transporting equipments, improve efficiency, and can handle Goods unloads the place for being placed on workshop needs；The cantilever beam rotary speed of the crane can accurately reach user's request.

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

A kind of semi portal crane with running trolley, including semi portal 28, the semi portal is by 1, two girder of an end carriage 2nd, a supporting rack 100 forms；Include grade beam 101 on the supporting rack；Wherein it is provided with the outside of a girder and chooses electric frame 121； Track 21 is provided with above two girders, running trolley 3 is connected on track；It is characterized in that：Described end carriage 1 and ground The both ends of beam 101 all connect cart actuating device 8 and passive wheel group 18 and buffer 13 respectively；Outside two girders Side all sets siding track 22；The lower section gap connection safety hook 33 of siding track, described safety hook one end is connected to running trolley 3 On；The running trolley is provided with the rotating mechanism 4 with elevating arc transmission；The lower end of suspension rod axle 42 in the rotating mechanism is with hanging Arm member 5 by having stop nut 9 to connect again after key connection；Suspension rod axle upper end connects safety ruler 583；Described cantilever member 5 Including cantilever beam 51, Holder for hanging household utensiles 52；The Holder for hanging household utensiles is provided with connecting hole, and Holder for hanging household utensiles 52 is welded on one end of cantilever beam 51； The cantilever beam is welded by I-steel or is welded by H profile steel；The cantilever beam is fixedly connected close to the one end of Holder for hanging household utensiles 52 Buffer 511, the adjustable car bumper device 70 of other end link position；Motor hoist 10 is connected on the cantilever beam, and can edge Outrigger horizontal motion；The cantilever beam is in operation outside extended workshop below two girders, and can be in the horizontal plane Rotation.

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 cart actuating device 8 includes wheel 81, reducing motor 83, and the wheel is two-wheel edge, described car Wheel one splined sleeve 811 of internal connection, the described both sides of wheel 81 pass through bearing 82 and flange shaft 84, hollow flange respectively Axle 85 is connected, and the ring flange of described flange shaft 84 and hollow flange axle 85 is connected on the two side of end carriage or grade beam； The outer ring of bearing 82 is connected to logical lid 86, and the logical lid is bolted in the wheel face；Above-mentioned hollow flange The ring flange 851 of axle 85 is provided with motor connection screw 852 and motor positioning hole 853；The reducing 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 reducing motor with Motor positioning hole 853 in hollow flange axle, which is inlayed, to be connected and is fastened by screw.

Wherein, described passive wheel group 18 includes wheel 181, flange shaft 182, and described wheel 181 is two-wheel edge；Institute The wheel center hole both sides stated are connected by the inner ring of bearing 183 with above-mentioned flange shaft 182 respectively；It is provided with described flange shaft The shaft shoulder 1821 is used for Limit Bearing, and one end sets ring flange 1822；Lubrication hole 1823 is provided with described flange shaft 182； The outer ring of bearing 183 is fixed on wheel by logical lid 184 and bolt 185, and the logical inside of lid 184 is provided with sealing ring 186； Flange shaft 182 described in two is connected on the two side of end carriage or grade beam by adjust pad 187 and screw 188 respectively；Institute Lubricating cup 189 is connected with the flange shaft 182 stated.

Wherein, described car bumper device 70 includes fixed seat 701, buffer 702, and the fixed seat welds squarely by steel plate Shape is made by rectangular steel tube；The fixed seat side opens up clip slot 7011；Welding steel 7012 above the clip slot, steel Screwed hole 7013 is opened up on plate；Connecting bolt and stop nut 703 on screwed hole；Side opens up connecting hole below the clip slot 7014；The fixed seat opens up buffer mounting hole 7015 on the side beside clip slot；Two buffers 702 connect respectively It is connected in two fixed seats 701；Two fixed seats are connected to cantilever beam orbit by screw rod 704 and nut On two sides Ji 211.

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 cable on running trolley in the application can be connected with the lashed cable (123) chosen on electric frame (121) beside girder, be hung Coaster can be connected on cable to 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 running gear is run on column track on end carriage in crane semi portal, the cart fortune on grade beam Luggage is put to be run in the track of workshop；Cantilever beam can reach next door workshop among supporting rack and be lifted or unloaded goods.

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 motor hoist to be wrapped in cantilever member Holder for hanging household utensiles (52) on and be torn because the cable (6) of motor hoist be draw from the junction box on trolley frame it is ensuing.

Cantilever beam (51) in the application cantilever member is fixedly connected with buffer (511) at that end of Holder for hanging household utensiles, rise buffering and it is spacing Motor hoist acts on；An adjustable car bumper device in position (70) is connected in the cantilever end of cantilever beam, its effect is on car stop Buffer can avoid motor hoist from moving back and forth impact or overtravel operation along cantilever beam, and the position of this car bumper device flexibly may be used Adjust, its benefit be according to the goods size cases lifted, can flexible modulation car bumper device fixed position, its essence is regulation is outstanding The effective breadth of arm beam, small tonnage amplitude can be big, and large-tonnage is with by a small margin；Crane effectively is utilized, while ensures safety.

Have two fixed seats (701) left and right can be general in car bumper device in the application, fixed seat be welded by steel plate or by Rectangular steel tube is made, and selection is simple, easy to make, and effect is good.

Cart actuating device (8) structure of the application is novel, compact, assembly and disassembly are convenient；The splined sleeve (811) of inside wheel Individually load inside wheel after processing, can dismantle；The small good processing of splined sleeve size, can make, the life-span of special high-abrasive material Long replacement cost is low；The bearing of wheel is connected more firm by logical lid；Hollow flange axle is hollow, and drive shaft is therefrom Pass through；Ring flange (851) on hollow flange axle had both been used to connect end carriage or grade beam, was used to connect reducing motor again, positioning subtracts Speed motor；The output shaft of reducing motor directly drives car through the connection of the splined sleeve of hollow flange shaft hollow hole and inside wheel Wheel；Positioning flange collar on reducing motor, which is inlayed, to be connected in the motor positioning hole (853) of hollow flange axle, on reducing motor flange seat Connecting hole be tightly coupled with the motor connection screw on hollow flange axle by bolt together with；The reducing motor of this structure is special Planetary reduction gear is adapted to, structure is small, and noise is small；So connect not only simple but also firmly between reducing motor and wheel, axiality is good, Take up space small, ensure that wheel steadily operates, operating is with small vibration, noise is small.

The passive wheel group (18) of the application is compact-sized, assembly and disassembly are convenient, and the outer ring of the bearing on wheel is while by the wheel shaft shoulder Spacing another side is spacing by logical lid, ensures that bearing is fixed on wheel not axial motion, more firm by logical lid fixing bearing, through Big axial force is played, is suitably adapted for high level operating mode；Pass through the difference of adjust pad between regulating flange axle and end carriage or grade beam Thickness, it becomes possible to the left and right offset distance of wheel center line is adjusted, can solve the problems, such as that wheel bias in end carriage causes to gnaw rail, Can solve the shaft shoulder and wheel both sides bearing inner race installation clearance issues in flange shaft, resolve wheel axial motion phenomenon；This Shen Passive wheel group please, it is compact-sized, from heavy and light, parts are few, be convenient to mount and dismount, space occupy-place is small, safe and reliable.

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- After loose nut A and suspension rod axis connection, 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 (rotating mechanism) in Fig. 1；

Fig. 7 is cart actuating device schematic diagram in the application；

Fig. 8 is passive wheel group schematic diagram in the application；

Fig. 9 is car stop schematic device 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 crane with running trolley, including semi portal 28, described half Frame is made up of a supporting rack 100 of girder 2, one of end carriage 1, two；Include grade beam 101 on the supporting rack；Wherein one It is provided with the outside of girder and chooses electric frame 121；Track 21 is provided with above two girders, running trolley 3 is connected on track；It is described End carriage 1 and the both ends of grade beam 101 all connect cart actuating device 8 and passive wheel group 18 and buffer 13 respectively；It is described The lateral surface of two girders all sets siding track 22；The lower section gap connection safety hook 33 of siding track, safety hook one end connection On running trolley 3；The running trolley is provided with the rotating mechanism 4 with elevating arc transmission；Suspension rod in the rotating mechanism The lower end of axle 42 is with cantilever member 5 by having stop nut 9 to be connected again after key connection；Suspension rod axle upper end connects safety ruler 583；Institute The cantilever member 5 stated includes cantilever beam 51, Holder for hanging household utensiles 52；The Holder for hanging household utensiles is provided with connecting hole, and Holder for hanging household utensiles 52 is welded on outstanding One end of arm beam 51；The cantilever beam is welded by I-steel or is welded by H profile steel；The cantilever beam is close to Holder for hanging household utensiles 52 one end are fixedly connected with buffer 511, the adjustable car bumper device 70 of other end link position；Electronic carry is connected on the cantilever beam Machine 10 is risen, and can be moved along outrigger horizontal；The cantilever beam is in operation outside extended workshop below two girders, And it can rotate in the 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.

As shown in fig. 7, described cart actuating device 8 includes wheel 81, reducing motor 83, the wheel is two-wheel edge, institute The inside wheel stated connects a splined sleeve 811, and the described both sides of wheel 81 pass through bearing 82 and flange shaft 84, sky respectively Heart flange shaft 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 or grade beam On wall；The outer ring of bearing 82 is connected to logical lid 86, and the logical lid is bolted in the wheel face；Above-mentioned sky The ring flange 851 of heart flange shaft 85 is provided with motor connection screw 852 and motor positioning hole 853；The band of reducing motor 83 Splined output shaft 831 is connected with above-mentioned inside wheel splined sleeve 811；Positioning flange collar in flange seat on the reducing motor 832 inlay with the motor positioning hole 853 in hollow flange axle and are connected and are fastened by screw.

As shown in figure 8, described passive wheel group 18 includes wheel 181, flange shaft 182, described wheel 181 is two-wheel Edge；Described wheel center hole both sides are connected by the inner ring of bearing 183 with above-mentioned flange shaft 182 respectively；In described flange shaft It is provided with the shaft shoulder 1821 and is used for Limit Bearing, one end sets ring flange 1822；Lubrication hole is provided with described flange shaft 182 1823；The outer ring of bearing 183 is fixed on wheel by logical lid 184 and bolt 185, and the logical inside of lid 184 is provided with sealing Circle 186；Flange shaft 182 described in two is connected to the both sides of end carriage or grade beam by adjust pad 187 and screw 188 respectively On wall；Lubricating cup 189 is connected with described flange shaft 182.

As shown in figure 9, described car bumper device 70 includes fixed seat 701, buffer 702, the fixed seat is welded by steel plate Squarely shape is made by rectangular steel tube；The fixed seat side opens up clip slot 7011；Welding steel above the clip slot 7012, screwed hole 7013 is opened up on steel plate；Connecting bolt and stop nut 703 on screwed hole；Side opens up below the clip slot Connecting hole 7014；The fixed seat opens up buffer mounting hole 7015 on the side beside clip slot；Two buffers 702 It is connected in two fixed seats 701；Two fixed seats are connected to cantilever beam by screw rod 704 and nut On two sides Ji 211 of track.

Claims (6)

1. a kind of semi portal crane with running trolley, including semi portal (28), the semi portal by an end carriage (1), Two girders (2), supporting rack (100) composition；Include grade beam (101) on the supporting rack；Wherein on the outside of a girder Provided with choosing electric frame (121)；Track (21) is provided with above two girders, running trolley (3) is connected on track；Its feature It is：Described end carriage (1) and grade beam (101) both ends all connect cart actuating device (8) and passive wheel group (18) respectively And buffer (13)；The lateral surface of two girders all sets siding track (22)；The lower section gap connection safety of siding track Hook (33), described safety hook one end is connected on running trolley (3)；The running trolley is provided with the rotation with elevating arc transmission Rotation mechanism (4)；Suspension rod axle (42) lower end in the rotating mechanism is with cantilever member (5) by there is locking spiral shell after key connection again Female (9) connection；Suspension rod axle upper end connection safety ruler (583)；Described cantilever member (5) includes cantilever beam (51), hanging Seat (52)；The Holder for hanging household utensiles is provided with connecting hole, and Holder for hanging household utensiles (52) is welded on one end of cantilever beam (51)；The cantilever beam It is welded by I-steel or is welded by H profile steel；The cantilever beam is fixedly connected with buffer close to Holder for hanging household utensiles (52) one end (511), the adjustable car bumper device of other end link position (70)；Motor hoist (10), and energy are connected on the cantilever beam Moved along outrigger horizontal；The cantilever beam is in operation outside extended workshop below two girders, and can be in horizontal plane Upper rotation.

A kind of 2. semi portal crane with running trolley according to claim 1, it is characterised in that：Described operation is small Car (3) includes trolley frame (31), two sets of drive cars (32)；The trolley frame (31) is welded by steel plate and shaped steel combination It is connected into plate structure；The trolley frame center is provided with assembling window (311), and trolley frame both sides transverse side is both provided with connecting seat (312), connecting seat is provided with flange hole (3121), and trolley frame both sides longitudinal side is provided with buffer (313)；It is foregoing two sets small Car drive device (32) is connected to the both ends of trolley frame；Drive car (32) include 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, two active cars 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.

A kind of 3. semi portal crane with running trolley according to claim 1, it is characterised in that：Described whirler Structure (4) includes drive device (40), small elevating arc (402), big elevating arc (403), bearing block (41), suspension rod axle (42)； The bearing block (41) is fixedly connected on running trolley (3)；The lower end branch sleeve (43) of the inner hole of bearing seat；Institute State and be provided with the shaft shoulder (425) in the middle part of suspension rod axle (42)；The suspension rod axle passes through bearing block (41) center and thrust bearing (45) Connection；The lower floor of the thrust bearing is connected to the top of bearing block, and its upper strata is connected with stop nut A (44)；It is described locking Nut A band dust covers (441), stop nut A is connected with suspension rod axle thread, and passes through stop nut A by bolt (46) Connected with the diameter of suspension rod axle；Described drive device (40) is combined by motor and horizontal speed-reducer, described drive Dynamic device is fixed on running trolley (3) by reductor bearing (401)；Described drive device output shaft is connected to small fan Gear (402), the small elevating arc are connected with big elevating arc (403) external toothing, and the big elevating arc is connected to above-mentioned suspension rod axle (42) on.

A kind of 4. semi portal crane with running trolley according to claim 1, it is characterised in that：Described cart drives Dynamic device (8) includes wheel (81), reducing motor (83), and the wheel is two-wheel edge, and described inside wheel connects one Splined sleeve (811), described wheel (81) both sides pass through bearing (82) and flange shaft (84), hollow flange axle (85) respectively The ring flange of connection, described flange shaft (84) and hollow flange axle (85) is connected on the two side of end carriage or grade beam； Bearing (82) outer ring is connected to logical lid (86), and the logical lid is bolted in the wheel face；It is above-mentioned hollow The ring flange (851) of flange shaft (85) is provided with motor connection screw (852) and motor positioning hole (853)；The deceleration Motor (83) band splined output shaft (831) is connected with above-mentioned inside wheel splined sleeve (811)；On the reducing motor Positioning flange collar (832) in flange seat is inlayed with the motor positioning hole (853) in hollow flange axle to be connected and is fastened by screw.

A kind of 5. semi portal crane with running trolley according to claim 1, it is characterised in that：It is described by motor-car Wheel group (18) includes wheel (181), flange shaft (182), and described wheel (181) is two-wheel edge；Described wheel center Hole both sides are connected by bearing (183) inner ring with above-mentioned flange shaft (182) respectively；The shaft shoulder (1821) is provided with described flange shaft, One end sets ring flange (1822)；Lubrication hole (1823) is provided with described flange shaft (182)；The bearing (183) Outer ring is fixed on wheel by logical lid (184) and bolt (185), and sealing ring (186) is provided with inside the logical lid (184)； Flange shaft (182) described in two is connected to the both sides of end carriage or grade beam by adjust pad (187) and screw (188) respectively On wall；Lubricating cup (189) is connected with described flange shaft (182).

A kind of 6. semi portal crane with running trolley according to claim 1, it is characterised in that：Described car bumper dress Putting (70) includes fixed seat (701), buffer (702), and the fixed seat is welded into square shape or by rectangular steel tube by steel plate It is made；The fixed seat side opens up clip slot (7011)；Welding steel (7012) above the clip slot, open up on steel plate Screwed hole (7013)；Connecting bolt and stop nut (703) on screwed hole；Side opens up connecting hole (7014) below the clip slot； The fixed seat opens up buffer mounting hole (7015) on the side beside clip slot；Two buffers (702) connect respectively It is connected on two fixed seats (701)；Two fixed seats are connected to cantilever beam by screw rod (704) and nut On two sides Ji (211) of track.