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Arm support device and arm support type engineering machine

A technology of construction machinery and boom, which is applied in the field of construction machinery, can solve the problems of poor flexibility of the boom device, achieve the effect of improving fabric flexibility, increasing stability, avoiding performance matching problems and high cost problems

Active Publication Date: 2012-06-27
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Moreover, the arrangement of the jib device in the prior art is not conducive to setting up a jib with more than six sections, and the flexibility of the jib device is relatively poor

Method used

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  • Arm support device and arm support type engineering machine
  • Arm support device and arm support type engineering machine
  • Arm support device and arm support type engineering machine

Examples

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Embodiment Construction

[0038] The object of the present invention is to provide a boom device, which has a compact structure and high space utilization rate, and provides space for the arrangement of multi-section booms, thereby increasing the total length of the boom device and improving the boom Fabric flexibility. In addition, another object of the present invention is to provide a boom-type construction machine comprising the above-mentioned boom device.

[0039] Without loss of generality, this article takes the application of the boom device on a concrete pump truck as an example to introduce the technical solution of the present invention. Those skilled in the art should understand that the application of the present invention to other boom-type construction machinery is not excluded .

[0040] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with t...

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PUM

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Abstract

The invention provides an arm support device used for an engineering machine. The arm support device comprises multiple segments of arm supports which are sequentially hinged, wherein the bottom end of a first-segment arm support is hinged with a turnplate of the engineering machine at a basic hinge point; when each arm support is in a folded state, the arm support device at least occupies three rows of arrangement spaces, the first-segment arm support is a straight arm support occupying a first row of arrangement space, and the other rows of arrangement spaces of the arm support device are located at two sides of the first segment arm support. The arm support device is compact in structure, sufficiently utilizes the width of a vehicle body, provides spaces for arrangement of the multiple segments of arm supports, and can fold more numbers of arm supports in the identical folding spaces, thus the total length of the arm support device is increased and the material distribution flexibility of the arm support is improved. In addition, the invention also discloses an arm support type engineering machine with the arm support device.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an arm support device. The present invention also relates to a boom-type engineering machine provided with the above-mentioned boom device. Background technique [0002] Concrete pump truck is a typical boom-type construction machinery, which can transport concrete along the pipeline to the required position of the construction project. During the working process, the concrete pump truck needs to transport the concrete to the designated position through the delivery pipe fixed on the boom device, and as the delivery position changes, the boom device needs to drive the delivery pipe to realize unfolding, folding and rotation. The boom device of the concrete pump truck generally includes a multi-section boom, and each section of the boom can be folded. [0003] At present, the folding methods used for the booms of concrete pump trucks mainly include R-type, Z-type a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/04
Inventor 郭承志钟爱娟谭海波
Owner SANY AUTOMOBILE MFG CO LTD
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