CN205387435U - Portal crane with buffer - Google Patents

Abstract

The utility model discloses a portal crane with buffer, its technical scheme main points are: including the portal crane main part, the below of portal crane main part is equipped with running gear, be equipped with the buffering subassembly on running gear's the lateral wall, the buffering subassembly includes the bolster, be equipped with the buffering annular on the lateral wall of bolster, controlling along the track when sliding as running gear, the striking takes place with the stand for the bolster, the deformation of circumference direction can directly take place for the bolster lateral wall, under the usual condition, stress concentration is understood in same department to the extrusion force that the lateral wall of bolster received, and can directly form an annular arch in stress concentration department, the bellied stress of this annular can produce the heavy damage by direct lateral wall to the bolster, and the buffering annular can decompose the stress that is in on the lateral wall of bolster, make bearing stress resolve into at least two parts effort, it is more even to make bolster lateral wall atress, effectively overcome the blotter lateral wall owing to acutely deform and the drawback of feather checking.

Description

A kind of straddle truck with buffer unit

Technical field

This utility model relates to tower crane field, particularly to a kind of straddle truck with buffer unit.

Background technology

In metallurgy industry job site, the making of many Simple steel structures or non-standard equipment, in order to reduce by the cost of transportation of factory to job site, lay at the construction field (site) often and make place temporarily, and the portal jib crane making steel construction or non-standard equipment is installed, for preventing because the foeign elements such as typhoon cause straddle truck sliding, derail and serious accident occurs, often walk the direct welding steel of terminal of track or shaped steel as car bumper at straddle truck, but this car bumper is because being rigid shock, impulsive force is big, and have loud noise, it is unfavorable for civilized construction, simultaneously, the service life of straddle truck be there is also and must affect.

For solving the problems referred to above, notification number is the simple and easy car bumper formula buffer of Chinese utility model one straddle truck of CN202936111U, including straddle truck, track for straddle truck sliding, car bumper formula buffer it is provided with in the end of track, this car bumper formula buffer includes being the column that is vertically welded, this column is provided with cushion pad, and the corresponding position being positioned at cushion pad is welded the contact plate of cuboid on the side of the mainframe of straddle truck, slide onto at straddle truck when the end of track along track, contact plate can directly bump against with cushion pad, avoid rigid shock, certainly this cushion pad can be set directly at straddle truck too, the purpose of rigid shock can be solved equally.

Wherein, the material of cushion pad is generally rubber, and cushion pad is once contact with corresponding contact plate, and its lateral wall not contacted with contact plate will deform, and the cushion pad lateral wall after deformation there will be crack, directly affects the service life of cushion pad.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is in that to provide a kind of straddle truck with buffer unit, and it can effectively overcome cushion pad lateral wall to produce the drawback in crack due to drastic mechanical deformation.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of straddle truck with buffer unit, including straddle truck main body, described straddle truck main body be connected with walking mechanism, the lateral wall of described walking mechanism is provided with Buffer Unit, described Buffer Unit includes bolster, and the lateral wall of described bolster is provided with buffering annular groove.

Pass through technique scheme, when walking mechanism is when carrying out left and right sliding along track, bolster and column clash into, can directly there is the deformation of circumferential direction in the lateral wall of bolster, under normal circumstances, the extruding force that the lateral wall of bolster is subject to can concentrate on same place by stress, and can directly form an annular protrusion at stress raiser, the lateral wall of bolster directly can be produced heavy damage by the stress of this annular protrusion, and cushion annular groove and the stress on the lateral wall being in bolster can be decomposed, extrusion stress is made to resolve at least two parts active force, bolster lateral wall is made to be more uniformly stressed, thus effectively overcoming cushion pad lateral wall to produce the drawback in crack due to drastic mechanical deformation.

Preferably, described Buffer Unit also includes connector, and described bolster is plugged on connector.

Pass through technique scheme, when bolster occurs that plastic deformation loses original cushioning effect, owing to bolster adopts the mode of grafting to be connected on connector, maintainer can extract bolster easily from connector, thus new bolster is plugged on connector again, it is convenient for changing.

Preferably, described connector is provided with spliced eye, and the end of described bolster is provided with for the T-shaped round platform with spliced eye grafting.

By technique scheme, in order to enable the connective stability between Promoting Layered Buffer part and connector, the T-shaped round platform of bolster end can be directly embedded in spliced eye, it is achieved both stable grafting.

Preferably, described Buffer Unit also includes the support member of L-shaped, and the end of described support member is welded in the lateral wall of walking mechanism, conflicts in plane between described support member and connector, the opening of described support member is arranged outwardly, is connected by fastening bolt between described connector and support member.

Pass through technique scheme, after whole buffer unit installation, conflict in plane between support member and connector, bolster is squeezed after power effect, the extruding force of bolster can either directly through conduction between support member and connector, and plane between the two is conflicted, can not only effectively reduce the extruding force size in unit are between the two, and vibrations between the two can be reduced；And the opening of support member is arranged outwardly, it is connected by fastening bolt between fitting with support member, no matter is that fastening bolt is installed or in unloading process, maintainer can directly use peripheral hardware instrument, it is directly protruding in the opening of support member, it is achieved the purpose of convenient dismounting.

Preferably, the quantity of described support member is two, is set in distance and there is buffer gap between the two between two support members, and described bolster is positioned at buffer gap relative to the orthographic projection of connector.

Pass through technique scheme, bolster is squeezed the masterpiece used time, its extruding can be directly conducted on connector, and the position that connector is easiest to deform upon is positioned at the junction of connector and bolster, now bolster is positioned at buffer gap relative to the orthographic projection of connector, so that buffer gap gives connector sufficient deformation space, reduce and make impact force be directly conducted to walking mechanism because bolster is impacted.

Preferably, described bolster is provided with some projections away from the end of walking mechanism.

Pass through technique scheme, protruding meeting directly be clashed into track end, and bolster self quality is softer, if clashing in a flash, this impact force is not along the axial direction of bolster, whole bolster can produce certain laterally offset, and projection then can be effectively increased bolster away from frictional force when clashing between walking mechanism end and track end, reduces the generation of above-mentioned situation；It addition, when rough situation occurs in track end, projection can be directly embedded into the recess of track end, increase the contact area between bolster and track end, reduce the conflict power in both unit ares.

Preferably, the lateral wall of described projection is sphere.

By technique scheme, the projection that sphere is arranged, when protruding and rough track end contacts, track end can be embedded into more swimmingly；It addition, projection is spherically arranged, when bolster is subject to clashing into, protruding is shaped as sphere, and the stress that convex outer surface can be greatly reduced is concentrated, and reduces the protruding probability that breaks.

Preferably, the groove width of described buffering annular groove is gradually reduced along the radial direction ecto-entad of bolster.

Pass through technique scheme, when bolster is subject to axial direction shock, bolster internal modification is more obvious further away from the center of bolster, and it is corresponding, the groove width of buffering annular groove is gradually reduced along the radial direction of bolster, namely the groove width away from the buffering annular groove at bolster center is more big, can give more many cushion spaces, Promoting Layered Buffer effect.

Accompanying drawing explanation

Fig. 1 is the mounting structure schematic diagram of embodiment；

Fig. 2 is the A portion enlarged drawing of Fig. 1；

Fig. 3 is the part sectioned view of Buffer Unit in embodiment；

Fig. 4 is the side-looking structural representation of Buffer Unit in embodiment.

Accompanying drawing labelling: 1, straddle truck main body；2, walking mechanism；3, Buffer Unit；31, bolster；32, connector；33, support member；5, buffering annular groove；6, spliced eye；7, T-shaped round platform；8, fastening bolt；9, buffer gap；10, protruding；11, track.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Shown in Figure 1, a kind of straddle truck with buffer unit, including straddle truck main body 1, straddle truck main body 1 be connected with walking mechanism 2, in actual use, walking mechanism 2 can directly cooperate with track 11, and whole straddle truck realizes left and right sliding motion along track 11, the lateral wall of walking mechanism 2 is provided with Buffer Unit 3, and Buffer Unit 3 is positioned on the lateral wall vertical with track 11 length direction of walking mechanism 2.

Shown in Fig. 1, Fig. 2 and Fig. 3, this Buffer Unit 3 includes the support member 33 of L-shaped, connector 32, bolster 31, the end of L-shaped support member 33 is welded on the lateral wall of walking mechanism 2, and the support member 33 of L-shaped is provided with two, it is set in distance between two support members 33 and there is buffer gap 9 between the two, being shaped as L-shaped due to support member 33, will necessarily there is the opening part of L-shaped, the opening of this support member 33 is arranged outwardly, and two support members 33 are arranged in mirror image each other.

Shown in Figure 3, support member 33 is provided with connector 32 away from the side of walking mechanism 2, and this connector 32 is connected by fastening bolt 8 for tabular and between connector 32 with support member 33, conflicts for plane between connector 32 and support member 33.

Shown in Fig. 2, Fig. 3 and Fig. 4, connector 32 is provided with spliced eye 6, and this spliced eye 6 is positioned on buffer gap 9, bolster 31 cylindrically shaped, and the flat end of bolster 31 is provided with T-shaped round platform 7, the inserting function that T-shaped round platform 7 can be directly embedded between spliced eye 6 to realize between bolster 31 and connector 32, and when both needs separate, owing to the quality of bolster 31 itself is softer, only needing to extract toward the axial direction of bolster 31 with strength, T-shaped round platform 7 can realize separating with spliced eye 6.

Shown in Fig. 3 and Fig. 4, the material of bolster 31 can be selected for rubber, and the excircle sidewall of bolster 31 is provided with some buffering annular grooves 5, and cushion the groove width of annular groove 5 to be gradually reduced along the radial direction ecto-entad of bolster 31, it addition, buffering annular groove 5 is isosceles trapezoid along the cross section of the axial direction of bolster 31.

Shown in Figure 2, bolster 31 is provided with some protruding 10 away from the end face of walking mechanism 2, and the lateral wall of protruding 10 is sphere.

The above is only exemplary embodiment of the present utility model, and not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.

Claims (8)

1. the straddle truck with buffer unit, including straddle truck main body (1), described straddle truck main body (1) be connected with walking mechanism (2), the lateral wall of described walking mechanism (2) is provided with Buffer Unit (3), it is characterized in that: described Buffer Unit (3) includes bolster (31), the lateral wall of described bolster (31) is provided with buffering annular groove (5).

2. a kind of straddle truck with buffer unit according to claim 1, is characterized in that: described Buffer Unit (3) also includes connector (32), and described bolster (31) is plugged on connector (32).

3. a kind of straddle truck with buffer unit according to claim 2, it is characterized in that: described connector (32) is provided with spliced eye (6), the end of described bolster (31) is provided with for the T-shaped round platform (7) with spliced eye (6) grafting.

4. a kind of straddle truck with buffer unit according to claim 2, it is characterized in that: described Buffer Unit (3) also includes the support member (33) of L-shaped, the end of described support member (33) is welded in the lateral wall of walking mechanism (2), conflict in plane between described support member (33) and connector (32), the opening of described support member (33) is arranged outwardly, is connected by fastening bolt (8) between described connector (32) with support member (33).

5. a kind of straddle truck with buffer unit according to claim 4, it is characterized in that: the quantity of described support member (33) is two, being set in distance between two support members (33) and there is buffer gap (9) between the two, described bolster (31) is positioned at buffer gap (9) relative to the orthographic projection of connector (32).

6. a kind of straddle truck with buffer unit according to any one in claim 1-5, is characterized in that: described bolster (31) is provided with some projections (10) away from the end of walking mechanism (2).

7. a kind of straddle truck with buffer unit according to claim 6, is characterized in that: the lateral wall of described projection (10) is sphere.

8. a kind of straddle truck with buffer unit according to claim 1, is characterized in that: the groove width of described buffering annular groove (5) is gradually reduced along the radial direction ecto-entad of bolster (31).