Movable type engineering machine and support leg device thereof

A construction machinery and mobile technology, applied in cranes, transportation and packaging, vehicle maintenance, etc., can solve problems such as complicated processing technology, limited load capacity of outrigger devices, difficult installation, debugging and maintenance

Inactive Publication Date: 2012-05-23
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the above-mentioned typical outrigger device structure, since the piston rod of each stage of the multi-stage oil cylinder 24 needs to be nested in the piston rod of the previous stage, the matching precision requirements between the mating parts of each stage are relatively high, and the processing technology is comparatively relatively high. Complicated, difficult to install, debug and maintain, and the weight of the outrigger device with this structure is relatively large, which limits the further improvement of the bearing capacity of the outrigger device

Method used

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  • Movable type engineering machine and support leg device thereof
  • Movable type engineering machine and support leg device thereof
  • Movable type engineering machine and support leg device thereof

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Embodiment Construction

[0028] The core of the present invention is to provide a leg device with a relatively simple structure, thereby reducing the complexity of the processing technology, and reducing the difficulty of installation and maintenance of the leg device, thereby reducing maintenance costs. Another core of the present invention is to provide a movable construction machine including the above outrigger device.

[0029] 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 the accompanying drawings and specific embodiments.

[0030] Please refer to figure 2 , figure 2 An exploded view of a specific embodiment of the outrigger device provided by the present invention.

[0031] In a specific embodiment, the outrigger device provided by the present invention is used for movable engineering machinery, and includes a fixed outrigger box 1 installed...

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Abstract

The invention discloses a support leg device used for a movable type engineering machine, comprising a fixed support leg box (1), wherein a first movable support leg (21) arranged on the fixed support leg box (1) is provided with a first gear (31), and the fixed support leg box (1) is provided with a first rack (41) meshed with the first gear (31); the first movable support leg (21) is provided with a second gear (32), and a second movable support leg (22) arranged on the first movable support leg (21) is provided with a second rack (42) meshed with the second gear (32); and the first gear (31) is linked with the second gear (32) under the action of a connecting part, and the first movable support leg (21) and the second movable support leg (22) move towards the same direction. By adopting a rack and pinion pair, the support leg device can be stretched, has simpler structure and simplifies the processing technique. The invention also discloses the movable type engineering machine including the support leg device.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to an outrigger device for a movable engineering machinery. The present invention also relates to a mobile construction machine comprising the above outrigger device. Background technique [0002] With the rapid development of my country's economic construction, all kinds of mobile construction machinery are more and more widely used in various fields of economic construction. [0003] In relatively large mobile construction machinery such as cranes and concrete pump trucks, the outrigger device plays an irreplaceable role as an important part of the equipment. In larger mobile construction machinery, there are generally multiple outrigger devices. The function of these outrigger devices is to provide support for the equipment when the equipment is in operation; specifically, when the equipment is in a non-operating state, it needs to be moved At this time, each outrigger devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60S9/04B66C23/78E04G21/02
Inventor 康卫熊欧沩滨周斌
Owner SANY AUTOMOBILE MFG CO LTD
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