Telescopic component and support for engineering machinery and concrete pump vehicle with the support

A technology for construction machinery and components, applied in vehicle maintenance, lifting vehicle accessories, transportation and packaging, etc., can solve the problems of complex structure of multi-stage telescopic oil cylinder, difficult layout of oil cylinder pipeline, troublesome processing and layout, etc. Layout, saving labor and production costs, and controlling the effect of simple and convenient

Inactive Publication Date: 2010-05-19
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defects in the prior art are: the structure of the multi-stage telescopic oil cylinder is complicated, the processing is difficult, the cost is high, and the layout of the oil delivery pipe of the oil cylinder is also relatively difficult. If a wire rope rope-retracting mechanism is used to drive it, it is necessary to drill holes in multiple places inside the legs for wiring. , complex structure, troublesome processing and layout

Method used

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  • Telescopic component and support for engineering machinery and concrete pump vehicle with the support
  • Telescopic component and support for engineering machinery and concrete pump vehicle with the support
  • Telescopic component and support for engineering machinery and concrete pump vehicle with the support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: as figure 2 , Image 6 and Figure 7 As shown, a telescopic support leg for engineering machinery of the present invention includes a telescopic sleeve assembly 1, one end of which is provided with a vertically telescopic supporting foot assembly 2, and the other end is connected to the chassis 24 of the construction machinery. The casing assembly 1 is equipped with a screw mechanism 3 that can drive the casing assembly 1 to expand and contract and a stop device 4 that limits the expansion and contraction of the casing assembly 1. The screw mechanism 3 includes a prime mover 31 with an external thread The circular shaft 32 and the hollow cylinder 33 with internal threads, the output shaft of the prime mover 31 is connected to the end of the circular shaft 32, the base 311 of the prime mover 31 is fixed in the bushing assembly 1 away from the supporting foot assembly 2 One end and the other end of the sleeve assembly 1 are fixedly connected to the hollow...

Embodiment 2

[0050] Embodiment 2: as image 3 , Figure 4 , Image 6 and Figure 7 As shown, a telescopic support leg for engineering machinery of the present invention includes a telescopic sleeve assembly 1, one end of which is provided with a vertically telescopic supporting foot assembly 2, and the other end is connected to the chassis 24 of the construction machinery. The casing assembly 1 is equipped with a screw mechanism 3 that can drive the casing assembly 1 to expand and contract and a stop device 4 that limits the expansion and contraction of the casing assembly 1. The screw mechanism 3 includes a prime mover 31 with an external thread The circular shaft 32 and the hollow cylinder 33 with internal threads, the output shaft of the prime mover 31 is connected to the end of the circular shaft 32, the base 311 of the prime mover 31 is fixed in the bushing assembly 1 near the end of the supporting foot assembly 2 , the other end of the casing assembly 1 is fixedly connected to the...

Embodiment 3

[0052] Embodiment 3: A telescopic outrigger for engineering machinery according to the present invention has basically the same structure as that of Embodiment 2, except that the installation position of the prime mover 31 is different. like Figure 5 As shown, the output shaft of the prime mover 31 is connected to the end of the hollow cylinder 33, the base 311 of the prime mover 31 is fixed on the end of the sleeve assembly 1 away from the supporting foot assembly 2, and the other end of the sleeve assembly 1 is connected to the circular shaft 32 fixed connection.

[0053] The concrete pump truck of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] like Image 6 , Figure 7 As shown, a concrete pump truck of the present invention includes a chassis 24 and a pumping mechanism 26 installed on the chassis 24, a boom system 21 and a supporting mechanism 22, and the supporting mechan...

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PUM

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Abstract

An extension component for the engineering plant, an extension landing leg formed by the component and a concrete-pump car are provided. The extension component includes a telescopic bushing component on which a helix mechanism and an arresting device are arranged. The helix mechanism contains a prime mover, a circular shaft and a hollow barrel. The circular shaft is connected with the hollow barrel via a thread or a middle hollow shaft group is arranged between the circular shaft and the hollow barrel, the middle hollow shaft group comprising a middle hollow shaft which has an internal thread and an outside thread. The both sides of the middle hollow shaft group are connected respectively with the circular shaft and the hollow barrel via the thread and the prime mover is connected withthe end of the circular shaft or the hollow barrel, the prime mover fixed on one end of the bushing component and the other end of the bushing component fixed and connected with the end of no prime mover in the helix mechanism. The extension part of the extension landing leg comprises the extension component and one end of the extension landing leg is provided with a supporting component while theother end is connected with a bracket on an underpan of the engineering plant. A supporting part of the concrete-pump car is provided with the extension landing leg. The invention has the advantagesof simple structure, convenient manufacture and low cost.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a telescopic assembly driven by a screw mechanism for construction machinery, a telescopic support leg formed by the assembly and a concrete pump truck with the telescopic support leg. Background technique [0002] Many construction machinery need to use supporting devices to realize the support during operation, the purpose of which is to avoid overturning caused by excessive operating load. Most of the existing support devices are legs that are deployed sideways and sideways, and each leg has two states of being folded and unfolded. When the construction machine needs to move, the outriggers are retracted for easy movement, and the outriggers in this state are called in the stowed position. When the mobile construction machine is in the construction state, the outriggers are deployed for support, and the outriggers in this state are called in the supporting position. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60S9/06
Inventor 徐鑫戴文正
Owner SANY AUTOMOBILE MFG CO LTD
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