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Support booms for mobile working machines and mobile concrete pump with said support booms

A technology for concrete pumps and working machinery, which is applied to liquid variable capacity machinery, mechanical equipment, pumps, etc., and can solve problems such as unstable support state and unfavorable force flow.

Inactive Publication Date: 2005-11-02
PUTZMEISTER ENG GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An unfavorable force flow from the concrete placing boom to the support arm due to the large distance between the bearing base and the swivel mechanism, which leads to an unstable support state

Method used

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  • Support booms for mobile working machines and mobile concrete pump with said support booms
  • Support booms for mobile working machines and mobile concrete pump with said support booms
  • Support booms for mobile working machines and mobile concrete pump with said support booms

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] The automotive concrete pump shown in the accompanying drawings mainly includes a multi-axis chassis 10 with two front axles 11 and three rear axles 12, a driver's seat 13, a rotating mechanism 14 installed near a front axle, A concrete distribution boom 15 rotating about a vertical axis, a pump unit 16 mounted on the chassis 10 at a distance from the turning mechanism 14 and a support structure 18 for the chassis 10 . The support structure 18 has a chassis-fixed support frame 19 and includes two front support arms 20 and two rear support arms 22, 22', which are retracted and positioned parallel to the chassis longitudinal axis 24 in the transport position, and in the working position Sometimes it protrudes obliquely forwards or backwards beyond the chassis 10 and rests on the ground 30 with its foot parts 26 , 28 .

[0024] The front support arm 20 about its vertical axis of rotation 32 and the rear support arms 22 , 22 ′ about its vertical axis of rotation 34 are pivo...

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PUM

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Abstract

A support strut for mobile working machines, especially for mobile concrete pumps. The support strut (20) has a strut body (38) that can be pivoted around a vertical pivoting axis (32) on a chassis (10), a telescopic part (40), a dual-acting hydraulic cylinder (42) (38) and the telescopic part (40), in addition to a foot part (26) that. Both ends of the telescopic hydraulic cylinder (42) are fixed on fixing points (46, 50) in the area of the opposite ends of the body of the strut (39 / 8) and the telescopic part (40). The vertical pivoting axis (32) is defined by a divided bearing or journal location arranged at an axial distance (S) from the inboard fixing point (46) in the direction of the foot part on the body of the boom (38), said location being positioned in such a way that it transects the displacement axis (52) of the hydraulic cylinder (42) transversely.

Description

technical field [0001] The invention relates to a support arm for a mobile working machine, in particular for an automobile concrete pump, which has a support arm box which can be pivoted on a chassis around a vertical rotation axis, a retractable support arm box A sleeve-type part in the body and a foot part arranged at the front end of the sleeve-type part and also vertically movable or telescopic. The invention also relates to a support arm for a motor vehicle concrete pump of this type. Background technique [0002] Known in the mobile concrete pump, is provided with the support arm that can be turned out from the chassis to the side and telescopic in order to support the concrete pump in the working position (DE-C-4203820), its vertical axis of rotation is arranged At the rear end of the arm box. In the transport position, the front support arm extends forward from the swivel bearing essentially parallel to the direction of travel, while in the operating position it p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/04B66C23/78B66C23/80E02B1/00F04B15/02
CPCB66C23/80E04G21/0436
Inventor 迪特马尔·菲格尔
Owner PUTZMEISTER ENG GMBH