CN105776017A - Undercarriage - Google Patents

Abstract

The invention discloses an undercarriage. The undercarriage comprises a main platform, and further comprises a lower pull rod, a middle pull rod, a pull rod, a pulley, an upper support rod, a lower support rod and a support rod. A first fulcrum is arranged at the left end of the main platform, a second fulcrum is arranged at the right end of the main platform, and a third fulcrum is arranged in the middle of the main platform. The first fulcrum and the lower pull rod are hinged through a pin shaft. An L-shaped connecting structure is arranged at the upper end of the lower pull rod and hinged to the middle pull rod through a pin shaft. The middle pull rod and the pull rod are hinged through a pin shaft. The pull rod, the pulley and the upper support rod are hinged through pin shafts. The second fulcrum and the lower support rod are hinged through a pin shaft. The third fulcrum and the support rod are hinged through a pin shaft. The upper support rod, the lower support rod and the support rod are hinged through a pin shaft. The undercarriage has the beneficial effects that the structure is simple; and all components do not need to be detached when the undercarriage needs to be transported, the requirements of the transportation state can be met by detaching the pin shafts, convenience and rapidness are achieved, practicability is high, and the use demands of people are met to a great extent.

Description

A kind of undercarriage

Technical field

The present invention relates to the undercarriage on a kind of crane facility.

Background technology

Undercarriage on current crane facility need to by, under each component removal, so meeting the requirement of travel position, but the dismounting of existing undercarriage be cumbersome when to transport, and not quick detachable, time-consuming, effort, practicality is not strong, it is impossible to meet the user demand of people.

Summary of the invention

It is an object of the invention to effectively overcome the deficiency of above-mentioned technology, it is provided that a kind of undercarriage, simple in construction, do not need when transporting to dismantle each component, the requirement of travel position can be met by dismantling bearing pin, convenient and swift, practical.

nullThe technical scheme is that and be achieved in that: it includes main platform，It thes improvement is that: also include lower link、Middle pull bar、Pull bar、Pulley、Upper rack posts、Lower fulcrum bar and pole，The two ends, left and right of described main platform are respectively provided with the first fulcrum and the second fulcrum，The middle part of main platform has the 3rd fulcrum，Described 3rd fulcrum to the distance of described first fulcrum less than the 3rd fulcrum distance to described second fulcrum，Hinge is passed through between the first fulcrum and described lower link，Described lower link upper end is provided with L-type attachment structure，Hinge is passed through between described L-type attachment structure and described middle pull bar，Hinge is passed through between described middle pull bar and described pull bar，Described pull bar、Pulley、Hinge is passed through between upper rack posts three，Described second fulcrum and described lower fulcrum bar pass through hinge，Described 3rd fulcrum and described pole pass through hinge，Described upper rack posts、Lower fulcrum bar、Hinge is passed through between pole three，The axis of described upper rack posts and lower fulcrum bar point-blank and the rwo all have angle with main platform，Described lower link、Middle pull bar、Pull bar、Upper rack posts、Lower fulcrum bar constitutes a big right angled triangle with main platform，Described pole、Lower fulcrum bar and main platform constitute a little right angled triangle.

In said structure, described L-type attachment structure has the first identical pin-and-hole of size, the second pin-and-hole and the 3rd pin-and-hole, the line of described first pin-and-hole and the second pin-and-hole is vertical with the axis of described lower link, the line of described second pin-and-hole and the 3rd pin-and-hole and the dead in line of described lower link, first pin-and-hole is positioned at the left side of the second pin-and-hole, and the 3rd pin-and-hole is positioned at the lower section of the second pin-and-hole.

The beneficial effects of the present invention is: a kind of undercarriage provided by the invention, by hinge between each component of this undercarriage, do not need to dismantle each component when transport, the requirement of travel position can be met by dismantling bearing pin, convenient and swift, time saving and energy saving, practical, present configuration is simple simultaneously, overall stability is strong, applied widely, adapts to the stability after whole crane lengthens, add the lifting capacity of crane, meet the user demand of people greatly.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of undercarriage of the present invention

Fig. 2 is the structural representation of a kind of undercarriage travel position of the present invention

In figure: 1, main platform；2, lower link；3, middle pull bar；4, pull bar；5, pulley；6, upper rack posts；7, lower fulcrum bar；8, pole；9, the first fulcrum；10, the second fulcrum；11, the 3rd fulcrum；12, L-type attachment structure；13, the first pin-and-hole；14, the second pin-and-hole；15, the 3rd pin-and-hole.

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described.

nullWith reference to shown in Fig. 1，A kind of undercarriage that the present invention discloses，It includes main platform 1、Lower link 2、Middle pull bar 3、Pull bar 4、Pulley 5、Upper rack posts 6、Lower fulcrum bar 7 and pole 8，The two ends, left and right of main platform 1 are respectively provided with the first fulcrum 9 and the second fulcrum 10，The middle part of main platform 1 has the 3rd fulcrum 11，The distance of the 3rd fulcrum the 11 to the first fulcrum 9 is less than the distance of the 3rd fulcrum the 11 to the second fulcrum 10，Concrete，In the present embodiment，The distance of the 3rd fulcrum the 11 to the first fulcrum 9 is 2200mm，The distance of the 3rd fulcrum the 11 to the second fulcrum 10 is 2650mm，Relative to prior art，Three fulcrums adapt to and keep whole crane to lengthen after stability，Can so that the weight of whole crane be increased to 35 tons by original 15 tons，Expand use scope，Certainly，The distance of the 3rd fulcrum the 11 to the first fulcrum 9 and the second fulcrum 10 can also set according to actual needs，To adapt to the crane of Different Weight.Hinge is passed through between the first fulcrum 9 and lower link 2, lower link 2 upper end is provided with L-type attachment structure 12, hinge is passed through between L-type attachment structure 12 and middle pull bar 3, by hinge between middle pull bar 3 and pull bar 4, lower link 2, L-type attachment structure 12, middle pull bar 3 and pull bar 4 are each perpendicular to main platform 1.Pull bar 4, pulley 5, hinge is passed through between upper rack posts 6 three, hinge is passed through between the second fulcrum 10 and lower fulcrum bar 7, 3rd fulcrum 11 passes through hinge with pole 8, upper rack posts 6, lower fulcrum bar 7, hinge is passed through between pole 8 three, the axis of upper rack posts 6 and lower fulcrum bar 7 point-blank and the rwo all have angle with main platform 1, concrete, in the present embodiment, upper rack posts 6 is all 32 degree with the angle of main platform with lower fulcrum bar 7, this angle is corresponding with the distance of the 3rd fulcrum the 11 to the first fulcrum 9 and the second fulcrum 10, can adjust according to actual needs.Lower link 2, middle pull bar 3, pull bar 4, upper rack posts 6, lower fulcrum bar 7 constitute a big right angled triangle with main platform 1, pole 8, lower fulcrum bar 7 constitute a little right angled triangle with main platform 1, big right angled triangle and little right angled triangle can be greatly enhanced the stability of undercarriage, by hinge between each component of whole undercarriage, not needing to dismantle each component when transport, only need to dismantle bearing pin can meet the requirement of travel position, convenient and swift, and bearing pin is quick detachable, time saving and energy saving, it is simple to safeguard.

Further, L-type attachment structure 12 has the first pin-and-hole the 13, second pin-and-hole 14 and the 3rd pin-and-hole 15 that size is identical, first pin-and-hole 13 is vertical with the axis of lower link 2 with the line of the second pin-and-hole 14, the line of the second pin-and-hole 14 and the 3rd pin-and-hole 15 and the dead in line of lower link 2, first pin-and-hole 13 is positioned at the left side of the second pin-and-hole 14, and the 3rd pin-and-hole 15 is positioned at the lower section of the second pin-and-hole 14.Undercarriage is operationally, bearing pin is installed in the second pin-and-hole 14 and the 3rd pin-and-hole 15 fixed by middle pull bar 3, can ensure that middle pull bar 3 is perpendicular to main platform 1 and the intensity being connected with L-type attachment structure 12, it is easy to the work of undercarriage, middle pull bar 3, when transport, is connected by undercarriage as in figure 2 it is shown, install bearing pin in the first pin-and-hole 13 and the second pin-and-hole 14, can ensure that middle pull bar 3 is in level and the intensity being connected with L-type attachment structure 12, it is simple to the transport of undercarriage.

Pass through said structure, the present invention is when to transport, as shown in Figure 2, by the bearing pin between L-type attachment structure 12 and middle pull bar 3, the bearing pin between middle pull bar 3 and pull bar 4, pull bar 4, pulley 5 and the triangular bearing pin of upper rack posts 6, and upper rack posts 6, lower fulcrum bar 7 and the triangular dismounting hinge pin of pole 8 get off, by middle pull bar 3, pull bar 4, pulley 5, upper rack posts 6 let-down, when middle pull bar 3 and upper rack posts 6 are horizontal, bearing pin correspondence disassembled is respectively mounted up again.The present invention is when to work, as shown in Figure 1, by the bearing pin between L-type attachment structure 12 and middle pull bar 3, bearing pin between middle pull bar 3 and pull bar 4, pull bar 4, pulley 5 and the triangular bearing pin of upper rack posts 6, and upper rack posts 6, lower fulcrum bar 7 and the triangular dismounting hinge pin of pole 8 get off, when middle pull bar 3, pull bar 4, pulley 5, upper rack posts 6 are raised to operating position, bearing pin correspondence disassembled is respectively mounted up again.Present configuration is simple, need not dismantle each component when transport, and only need to dismantle bearing pin can meet the requirement of travel position, convenient and swift, meets the user demand of people greatly.

Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.In the technological thought category of the present invention, it is possible to various deformation and amendment occur, retouching, amendment or the equivalent replacement that all those of ordinary skill in the art make as described above, belong to the scope that the present invention protects.

Claims (2)

1. null1. a undercarriage，It includes main platform，It is characterized in that: also include lower link、Middle pull bar、Pull bar、Pulley、Upper rack posts、Lower fulcrum bar and pole，The two ends, left and right of described main platform are respectively provided with the first fulcrum and the second fulcrum，The middle part of main platform has the 3rd fulcrum，Described 3rd fulcrum to the distance of described first fulcrum less than the 3rd fulcrum distance to described second fulcrum，Hinge is passed through between the first fulcrum and described lower link，Described lower link upper end is provided with L-type attachment structure，Hinge is passed through between described L-type attachment structure and described middle pull bar，Hinge is passed through between described middle pull bar and described pull bar，Described pull bar、Pulley、Hinge is passed through between upper rack posts three，Described second fulcrum and described lower fulcrum bar pass through hinge，Described 3rd fulcrum and described pole pass through hinge，Described upper rack posts、Lower fulcrum bar、Hinge is passed through between pole three，The axis of described upper rack posts and lower fulcrum bar point-blank and the rwo all have angle with main platform，Described lower link、Middle pull bar、Pull bar、Upper rack posts、Lower fulcrum bar constitutes a big right angled triangle with main platform，Described pole、Lower fulcrum bar and main platform constitute a little right angled triangle.
2. 2. a kind of undercarriage according to claim 1, it is characterized in that: described L-type attachment structure has the first identical pin-and-hole of size, the second pin-and-hole and the 3rd pin-and-hole, the line of described first pin-and-hole and the second pin-and-hole is vertical with the axis of described lower link, the line of described second pin-and-hole and the 3rd pin-and-hole and the dead in line of described lower link, first pin-and-hole is positioned at the left side of the second pin-and-hole, and the 3rd pin-and-hole is positioned at the lower section of the second pin-and-hole.