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

A technology of engineering machinery and components, which is 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 arrangement of oil cylinder oil pipeline, troublesome processing and arrangement, etc., and achieves easy processing and Layout, save manpower and production costs, control the effect of simple and convenient

Inactive Publication Date: 2008-02-13
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 shown in Figure 2, a telescopic outrigger 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 One end is connected with the bracket on the chassis 24 of the construction machinery. The sleeve assembly 1 is equipped with a screw mechanism 3 that can drive the sleeve assembly 1 to expand and contract and a stop device 4 that limits the expansion and contraction of the sleeve assembly 1. The screw mechanism 3 includes the original A motor 31, a circular shaft 32 with external threads and a hollow cylinder 33 with internal threads, the output shaft of the prime mover 31 is connected to the end of the circular shaft 32, and the base 311 of the prime mover 31 is fixed in the casing assembly 1 One end away from the supporting foot assembly 2 , the other end of the bushing assembly 1 is fixedly connected to the hollow cylind...

Embodiment 2

[0050] Embodiment 2: As shown in Figure 3 and Figure 4, a telescopic outrigger for construction machinery according to the present invention includes a telescopic sleeve assembly 1, and one end of the sleeve assembly 1 is provided with a vertically telescopic supporting foot assembly 2. The other end is connected to the bracket on the chassis 24 of the construction machinery. The sleeve assembly 1 is equipped with a screw mechanism 3 that can drive the sleeve assembly 1 to expand and contract and a stop device 4 that limits the expansion and contraction of the sleeve assembly 1. The screw mechanism 3 includes a prime mover 31, a circular shaft 32 with external threads and a hollow cylinder 33 with internal threads, the output shaft of the prime mover 31 is connected to the end of the circular shaft 32, and the base 311 of the prime mover 31 is fixed on the sleeve One end of the assembly 1 is close to the supporting foot assembly 2 , and the other end of the sleeve assembly 1 is...

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. As shown in Figure 5, 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 bushing assembly 1 away from the support foot assembly 2, and the other end of the bushing assembly 1 It is fixedly connected with the round shaft 32.

[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] As shown in Fig. 6 and Fig. 7, a concrete pump truck of the present invention includes a chassis 24, a pumping mechanism 26 installed on the chassis 24, a boom system 21 and a supporting mechanism 22, and the supporting mechanism 22 includes four o...

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Abstract

A telescopic component used for construction machinery, a telescopic support leg and a concrete pump truck composed of the component. The telescopic assembly includes a telescopic sleeve assembly, and the sleeve assembly is equipped with a screw mechanism and a stop device. The screw mechanism includes a prime mover, a circular shaft and a hollow cylinder, and the circular shaft and the hollow cylinder are threaded, or between the circular shaft and the hollow cylinder Set the middle hollow shaft group, the middle hollow shaft group is composed of the middle hollow shaft with internal and external threads, the two ends of the middle hollow shaft group are respectively screwed with the round shaft and the hollow tube, the prime mover is connected with the end of the round shaft or the hollow tube connection, the prime mover is fixed at one end of the sleeve assembly, and the other end of the sleeve assembly is fixedly connected with the end of the screw mechanism where the prime mover is not installed. The telescopic part of the telescopic outrigger is composed of the telescopic assembly, and one end of the telescopic outrigger is provided with a supporting foot assembly, and the other end is connected with the bracket on the chassis of the construction machine. The telescopic outrigger is installed in the supporting part of the concrete pump truck. The invention has the advantages of 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 Applications(China)
IPC IPC(8): B60S9/06
Inventor 徐鑫戴文正
Owner SANY AUTOMOBILE MFG CO LTD
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