CN212292588U

CN212292588U - Foldable introduction mechanism

Info

Publication number: CN212292588U
Application number: CN202022086328.3U
Authority: CN
Inventors: 米成宏; 衣磊; 刘尊正; 乔磊; 王成运; 宋少强
Original assignee: Xuzhou Construction Machinery Group Co Ltd XCMG
Current assignee: Guangdong Xugong Construction Machinery Engineering Machinery Co Ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-01-05
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a collapsible introduction mechanism, including introduction roof beam I, introduction roof beam II, supporting component, introduction roof beam I fixes in the below of special festival, and its one end is articulated with introduction roof beam II's one end, and supporting component is used for introduction roof beam II to keep flat with the support after folding. The supporting component comprises a pull rod I and a pull rod II, one end of the pull rod I is fixed on the upper portion of the special section, and the other end of the pull rod I is hinged to the introduction beam II and used for supporting the introduction beam II when the introduction beam II is horizontally placed. One end of the pull rod II is fixed on the upper part of the special section, and the other end of the pull rod II is hinged with the introduction beam II and used for supporting the introduction beam II during folding. The structure can enlarge the stroke of the lifting hook on the crane boom and increase the maximum lifting weight.

Description

Foldable introduction mechanism

Technical Field

The utility model relates to a tower crane technical field, concretely relates to collapsible introduction mechanism.

Background

The introduction mechanism of the tower crane is an important structure in the self-jacking installation process of the tower crane, the standard knot is required to be introduced into the climbing frame by the introduction mechanism when the tower crane is installed, and the introduced standard knot and the standard knot below adopt a pin shaft installation mode, so that the purpose of lifting the height of the tower crane and accelerating the installation process is achieved. Among the prior art, through the introduction mechanism who adopts, because of its introduction roof beam formula as an organic whole, lead to the minimum working amplitude of lifting hook on the jib loading boom to be restricted, the biggest lifting capacity reduces, and the required space of actual installation is big simultaneously, and is unstable, need remove great range in the installation space and just can install, wastes time and energy, and has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible introduction mechanism to solve the lifting hook removal space that occupies that exists among the prior art and install inconvenient problem.

In order to achieve the above object, the utility model discloses a collapsible introduction mechanism, including introduction roof beam I, introduction roof beam II, supporting component, introduction roof beam I fixes in the below of special festival, its one end with introduction roof beam II's one end is articulated, and supporting component is used for introduction roof beam II keeps flat with folding back support.

Furthermore, the supporting component comprises a pull rod I, one end of the pull rod I is fixed to the upper portion of the special section, and the other end of the pull rod I is hinged to the introduction beam II and used for supporting the introduction beam II when the introduction beam II is horizontally placed.

Furthermore, the support assembly further comprises a pull rod II, one end of the pull rod II is fixed to the upper portion of the special section, and the other end of the pull rod II is hinged to the introduction beam II and used for supporting the introduction beam II during folding.

Furthermore, the introduction beam I and the introduction beam II are connected through a pin shaft.

Further, the introduction beam I is connected with the lower part of the special joint through a pin shaft.

The utility model has the advantages that: the introduction beam is foldable, so that more walking distances are provided for the lifting hooks on the crane boom, and the weight of a lifted object can be further improved; secondly, when the lead-in beam II is folded, the support frame of the whole crane can be more stable; and thirdly, the introduction beam I is connected with the special section through the pin shaft, so that the introduction beam I is more convenient to disassemble and is also convenient to transport.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the introduction mechanism when retracted;

in the figure, 1-introducing beams I, 2-introducing beams II, 3-pull rods I, 4-pull rods II, 5-special sections.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a foldable lead-in mechanism comprises a lead-in beam I1, a lead-in beam II2 and a support assembly, wherein the lead-in beam I1 is fixed below a special section 5, one end of the lead-in beam I1 is hinged with one end of the lead-in beam II2, and the support assembly is used for supporting the lead-in beam II2 after being flatly placed and folded. The introduction beams I1 and II2 are H-shaped steel and mainly play the role of a slideway, and the sides of the two introduction beams are hung with introduction trolleys which are used for conveying standard joints to be installed to a space below the special joint 5. The special section 5 is a transition section of a standard section and a rotary support, is a hollow frame supporting structure, is a hollow cuboid, and is provided with two cross beams below the cuboid, an introduction beam I1 is arranged below the middle position of the cross beams and is vertical to the two cross beams and is connected with the cross beams through a pin shaft, so that the stroke of the introduction trolley can be extended into the special section, and then the standard section to be installed in the hoisting process can also enter the climbing frame, wherein the pin shaft is connected, and the convenience is brought to disassembly and installation.

The supporting assembly comprises a pull rod I3, one end of the pull rod I3 is fixed in the middle of a cross beam at the upper part of the special joint 5, and the other end of the pull rod I3 is hinged with the introduction beam II2 and is used for supporting the introduction beam II2 when the introduction beam II2 is horizontally placed. The introduction beam I1 and the introduction beam II2 are connected through a pin shaft, so that the folding and the disassembly and the installation are convenient. As shown in fig. 2, the support assembly further includes a pull rod II4, one end of which is fixed on the upper part of the special joint 5, and the other end of which is hinged with the introduction beam II2 for supporting the introduction beam II2 when it is folded.

The two introduction beams are arranged in a foldable mode, and the length of the introduction beam II2 is about three meters generally, so that the stroke of a lifting hook on a lifting arm in the direction leading to a standard section is increased, the capacity of the lifting hook for lifting heavy objects is enhanced, and the function of well expanding energy is played in the actual lifting operation. In addition, the lead-in beam is generally heavy, the lead-in beam II2 is completed, and after the lead-in beam II2 is folded, the stability of the crane can be enhanced.

The length of the pull rod I3 is different from that of the pull rod II4, when the lead-in mechanism works, the pull rod I3 is used, and after the lead-in mechanism works, the lead-in beam is folded and is changed into the pull rod II 4.

Of course, the supporting component can also adopt the mode of a steel wire rope and a movable pulley, and can also play a role of supporting by adopting a pull rod.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.

Claims

1. A foldable introduction mechanism, characterized in that: including introduction roof beam I (1), introduction roof beam II (2), supporting component, the below at special festival (5) is fixed in introduction roof beam I (1), its one end with the one end of introduction roof beam II (2) is articulated, and supporting component is used for the support after introduction roof beam II (2) is kept flat and is folded.

2. A foldable introduction mechanism according to claim 1, characterised in that: the supporting component comprises a pull rod I (3), one end of the pull rod I (3) is fixed to the upper portion of the special section (5), and the other end of the pull rod I (3) is hinged to the introduction beam II (2) and used for supporting the introduction beam II (2) when the introduction beam II (2) is horizontally placed.

3. A foldable introduction mechanism according to claim 2, characterised in that: the support assembly further comprises a pull rod II (4), one end of the pull rod II is fixed to the upper portion of the special section (5), and the other end of the pull rod II is hinged to the introduction beam II (2) and used for supporting the introduction beam II (2) during folding.

4. A foldable introduction mechanism according to claim 1, characterised in that: the introduction beam I (1) is connected with the introduction beam II (2) through a pin shaft.

5. A foldable introduction mechanism according to claim 2, characterised in that: the lower parts of the introduction beam I (1) and the special section (5) are connected through a pin shaft.