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Span-adjustable beam lifter

A beam lifting machine and span technology, which is applied in the direction of walking bridge cranes, bridges, cranes, etc., can solve the problems of inconvenient maintenance and inability to adjust the span, and achieve the effect of easy maintenance, easy movement, and adjustable span

Pending Publication Date: 2021-01-08
华建重工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the invention provides a beam lifting machine with an adjustable span, which has the advantages of being able to adjust the span and being convenient for maintenance, and solves the problems of being unable to adjust the span and being inconvenient for maintenance

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see Figure 1-5 , a beam lifting machine with adjustable span, comprising a beam 1, one side of the beam 1 is provided with an adjustment structure 2, the number of the adjustment structures 2 is two in total, and the distribution is symmetrical, the middle part of the outer surface of the beam 1 is slidingly connected with a movable Ring 7, the lower surface of the movable ring 7 is fixedly connected with a hook 8, the cross-sectional shape of the beam...

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Abstract

The invention discloses a span-adjustable beam lifter which comprises a cross beam. An adjusting structure is arranged on one side face of the cross beam, a fixing block is fixedly connected to the lower surface of the adjusting structure, a supporting frame is fixedly connected to the lower surface of the fixing block, and a box body is fixedly connected to the lower surface of the supporting frame. A transmission structure is arranged in the box body, and the adjusting structure comprises a sliding clamping ring, a rack, a limiting box, a gear, a screw rod and a first-stage servo motor. According to the span-adjustable beam lifter, through cooperation of rolling wheels and the transmission structure, the span-adjustable beam lifter has the effects of being capable of moving transverselyand vertically, so that the effect that movement is convenient is achieved; and through cooperative arrangement of the adjusting structure and the cross beam, in the using process, the supporting frame can be indirectly driven to move through the first-stage servo motor, then the effect of improving the applicability is achieved, and the purpose of adjusting the span is achieved.

Description

technical field [0001] The invention relates to the technical field of beam lifting machines, in particular to a beam lifting machine with adjustable span. Background technique [0002] The beam lifting machine is a kind of gantry crane specially designed for bridge construction. The beam lifting machine is mainly composed of an assembled main beam, outriggers, crown blocks, etc. The components are connected by pin shafts and high-strength bolts, which is easy to disassemble and transport; compared with ordinary gantry cranes, it is convenient and quick to install, economical and practical. It is suitable for road and bridge construction units with frequent flow. [0003] The beam lifting machine is a commonly used mechanical equipment in construction and bridge engineering. It is used to lift and move the beam structure. The general beam lifting machine is composed of a lifting mechanism, a walking mechanism and a clamping mechanism. However, there are existing The beam l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C17/20B66C5/02B66C13/00E01D21/00
CPCB66C5/02B66C13/00B66C17/20E01D21/00
Inventor 靳威海岳云峰张清涛杜军峰位海强
Owner 华建重工有限公司
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