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retractable chassis

A telescopic and chassis technology, which is applied in motor vehicles, tracked vehicles, transportation and packaging, etc., can solve problems affecting the performance of construction machinery, achieve low production costs, ensure stability and reliability, and facilitate installation and maintenance.

Active Publication Date: 2018-10-23
QINGDAO LOVOL EXCAVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different postures, there are often different requirements for the width of the chassis (that is, the gauge), and the two postures must be changed frequently. The back-set chassis structure cannot meet this frequent change, which greatly affects the performance of construction machinery.

Method used

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

[0045] Such as figure 1 As shown, the retractable chassis includes a middle chassis 1, and the left and right sides of the middle chassis 1 are respectively provided with a left crawler beam 2 and a right crawler beam 3 with the same structure and mutual symmetry, and a Telescopic oil cylinder 4, telescopic oil cylinder 4 is a double-rod oil cylinder, and two telescopic rods of telescopic oil cylinder 4 link to each other with left and right crawler beams respectively.

[0046] Such as Figure 8 to Figure 12 As shown, the rear portions of the left and right crawler beams are respectively provided with travel motor mounts 5, and each travel motor mount 5 includes a motor mount plate 51, a ring plate 52 surrounding the motor mount plate 51, and a ring The front plate 54 fi...

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PUM

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Abstract

The invention discloses a telescopic chassis and belongs to the field of crawler type engineering machinery. The telescopic chassis comprises a middle underframe; a left crawler beam and a right crawler beam which are of the same structure and symmetric are arranged on the left side and the right side of the middle underframe correspondingly. A telescopic oil cylinder is arranged between the left crawler beam and the right crawler beam. The two ends of the telescopic oil cylinder are connected with the left crawler beam and the right crawler beam correspondingly. The left crawler beam and the right crawler beam can be driven by the telescopic oil cylinder to reciprocate so that different track gauges of the chassis can be changed according to needs, and the usability of crawler engineering machinery is improved.

Description

technical field [0001] The invention belongs to the field of crawler engineering machinery, in particular to a retractable chassis for an excavator. Background technique [0002] Crawler construction machinery generally works in two postures, one is short-distance walking of the whole machine, and the other is that the body of the whole machine (mainly walking parts and platform parts) is fixed, while the upper working device part is working . Due to the different postures, there are often different requirements for the width of the chassis (ie gauge), and the two postures must be changed frequently. The back-set chassis structure cannot meet this frequent change, which greatly affects the performance of construction machinery. This shows that the prior art needs to be further improved and improved. Contents of the invention [0003] In order to avoid the disadvantages of the above-mentioned prior art, the present invention provides a retractable chassis, which can chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D55/10
CPCB62D55/10
Inventor 齐友民王桂民王宾陈维雄张军荣夏金玲
Owner QINGDAO LOVOL EXCAVATOR
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