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A pin assembly and construction machinery

A technology of pin shafts and components, applied to cranes, bolts, etc., which can solve problems such as large installation space and impact on the operation of construction machinery

Active Publication Date: 2020-11-24
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pin assembly and construction machinery to solve the technical problem in the prior art that the installation space of the pin assembly using hydraulic power is large, which will affect the operation of construction machinery

Method used

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  • A pin assembly and construction machinery
  • A pin assembly and construction machinery
  • A pin assembly and construction machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to figure 1 , figure 1 The three-dimensional structure of the pin shaft assembly which will be described in detail below is shown. From figure 1 It can be seen from the figure that the pin shaft assembly includes the pin shaft body 1, the oil cylinder 2, the slider 3, the guide rail 4 and the mounting seat 5, and the slider 3, the guide rail 4 and the mounting seat 5 together constitute a supporting component.

[0032] Please refer to figure 2 , figure 2 for figure 1 The shown pin assembly is a sectional view taken along the axis of the pin body. From figure 2 It can be seen from the figure that the pin shaft body 1 has a hollow inside, the cylinder barrel 202 of the oil cylinder 2 is placed in the hollow portion, the cylinder rod 201 of the oil cylinder 2 protrudes from the pin shaft body 1, and the axis of the pin shaft body 1 and the oil cylinder 2 axes are collinear.

[0033] Please refer again figure 1 , the cylinder barrel (not shown) of t...

Embodiment 2

[0047] The structure of the pin shaft body and the oil cylinder of the pin shaft assembly in this embodiment is the same as that of Embodiment 1, the difference is that the form of the support component in this embodiment is different from that of Embodiment 1, and it can be regarded as the support component in Embodiment 1 along the Cut the symmetrical planes of the two sub-rails and take one of them. In this embodiment, the number of guide rails is one, and the guiding effect on the slider can also be realized through one guide rail, and the guide rail can be rotated 90 degrees when folding.

[0048] In addition, in addition to the same first pin hole, second pin hole and third pin hole as in embodiment 1, this embodiment also includes a fourth pin hole. There is a certain interval between the fourth pin hole and the third pin hole. When the cylinder rod is elongated, the third pin hole or the fourth pin hole can be selected to be fixed according to the length of the pin sh...

Embodiment 3

[0050] This embodiment provides a construction machine, including the pin shaft assembly in Embodiment 1. The pin shaft assembly is fixedly connected with the construction machine through the mounting hole on the mounting base, and the pin shaft assembly is folded left and right.

[0051] Specifically, the construction machine is a crane.

[0052] Because the construction machine includes the pin shaft assembly in Embodiment 1, it can also solve the targeted technical problem.

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Abstract

The invention relates to the field of engineering machinery, in particular to a pin shaft assembly and engineering machinery. The pin shaft assembly comprises a pin shaft body, an oil cylinder and a supporting part; a cylinder barrel of the oil cylinder is fixedly connected to the pin shaft body; the supporting part comprises mounting bases, sliding blocks and guide rails; the sliding blocks are hinged to cylinder rods of the oil cylinder, and the sliding blocks are in sliding fit with the guide rails; and the guide rails and the cylinder rods of the oil cylinder are arranged at intervals in aparallel mode, the guide rails are rotationally connected to the mounting bases, the guide rails can rotate around rotating shafts and can be fixed at set positions in which the guide rails are rotated, and the rotating shafts are perpendicular to a plane formed by the guide rails and the cylinder rods of the oil cylinder. The engineering machinery comprises the pin shaft assembly. According to the pin shaft assembly and the engineering machinery, the rotating shafts of the mounting bases rotated by the guide rails are perpendicular to the plane formed by the guide rails and the cylinder rodsof the oil cylinder, so that the size of the folded pin shaft assembly in the up-down direction is reduced to the thickness of the guide rails, and the influence on the use of engineering machinery is reduced.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a pin assembly and construction machinery. Background technique [0002] At present, large-tonnage and super-large-tonnage cranes are bulky, and the crane needs to be disassembled into several large parts and transported to the work site before being reassembled. The parts need to be connected by pins. The pin shaft bears a large force and has a large structural size. For example, the length of a pin shaft reaches 0.5 meters, and it is very difficult to insert and pull out by manpower. By equipping the pin shaft with a special oil cylinder plugging device, the hydraulic power can be used to realize the plugging action of the pin shaft, thereby replacing manpower. Due to the large size and structure of the pin shaft, the force and stroke required for plugging and unplugging the pin shaft are large, and the installation space of the plug-in device is relatively large, so the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B19/02B66C23/62
CPCB66C23/62F16B19/02
Inventor 姜冠营胡江林张响
Owner SANY AUTOMOBILE HOISTING MACHINERY