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Crane Superstructure Drive Device

A driving device, mobile crane technology, applied in the direction of crane, fluid pressure actuating device, hoisting device, etc., can solve the problems of increasing weight and cost, and achieve the effect of reducing exposure

Active Publication Date: 2017-12-08
MANITOWOC CRANE GROUP FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pump drive gearbox itself adds weight and cost

Method used

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  • Crane Superstructure Drive Device
  • Crane Superstructure Drive Device
  • Crane Superstructure Drive Device

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] figure 1 Shows a first linear arrangement of a plurality of engine pumps 4A to 4D, 5A and 5B substantially coaxially connected to two on each side of a hydraulic motor 7 Output, where pumps 5A and 5B form an engine pump set, and pump 5B is not driven directly by hydraulic motor 7, but indirectly via pump 5A, which provides output for pump 5B and which in turn is directly driven by hydraulic motor 7. A very similar arrangement is found in other implementations, in figure 1 Coaxially opposite the output of hydraulic motor 7 shown on the left hand side of , pump 4A is directly connected to hydraulic motor 7 and pumps 4B to 4D are driven by the outputs of the respective upstream pumps connected to them.

[0024] figure 2 shows a figure 1 The arrangement is very similar to the arrangement. A hydraulic motor 7 is again located in the centre, either side of which drives respectively a set of coaxially arranged pumps 4A-4C and 5A-5D, each pump performing a different functi...

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PUM

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Abstract

The invention relates to a drive device for supplying power to multiple engine pumps (4, 5), provided in the superstructure (3) of a mobile crane for superstructure functions, by way of a drive motor (2) arranged in the undercarriage (1) of the mobile crane, comprising a hydraulic motor (7) which is arranged in the superstructure (3) and hydraulically driven by the drive motor (2) and which comprises a first mechanical output which couples at least one first engine pump (4) to the hydraulic motor (7) and a second mechanical output which couples at least one second engine pump (5) to the hydraulic motor (7). The invention also relates to a mobile crane comprising this drive device.

Description

technical field [0001] The invention relates to a drive for powering the superstructure of a mobile crane. The invention also relates to a mobile crane comprising said drive device. Background technique [0002] Mobile cranes usually include not only an internal combustion engine arranged on the undercarriage for providing tractive drive, but also another internal combustion engine arranged on the superstructure for supplying consumers (such as hoisting mechanisms, luffing mechanism or telescopic mechanism) powered by an internal combustion engine. [0003] In small mobile cranes, and also in recent years more and more large mobile cranes, there is an advantage in favor of small inherent weight and related advantages and in favor of the use of chassis engines originally mainly for traction drive. The upper structure of the crane provides the power converter (switch). For this purpose, one known design envisages providing a hydraulic pump on the crane chassis, which is dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/20B66C23/40
CPCB66C13/20B66C23/40B66C23/54B66C23/38B66C23/36F15B11/08F15B11/17F15B2211/20576
Inventor J·瑞辛格J·舒尔曼
Owner MANITOWOC CRANE GROUP FRANCE
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