A screed boom

By adopting a combination of U-shaped and V-shaped plates in the telescopic boom of the leveling machine, combined with hydraulic cylinder drive and chain transmission, the problems of swaying and deformation of the three-section boom have been solved, thereby improving stability and strength, ensuring construction quality and extending equipment life.

CN115573569BActive Publication Date: 2026-02-27SHANDONG HUAANG MASCH PROJECT CO LTD
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Patent Information

Application Number
CN202211347058.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-31
Publication Date
2026-02-27
Estimated Expiration
2042-10-31

AI Technical Summary

Technical Problem

The three-section boom of the existing screed telescopic boom is prone to swaying and deformation when subjected to external forces, which affects the construction quality and efficiency, and is difficult to retract, thus shortening the service life of the equipment.

Method used

The three-section arm design, which combines U-shaped and V-shaped plates to form a six-sided structure, is combined with hydraulic cylinder drive, chain drive and limiting device to ensure the stability and strength of the three-section arm. The upper chain moves within the groove on the top surface of the V-shaped plate to maximize the cross-sectional area.

Benefits of technology

It improves the structural stability and strength of the three-section boom, ensures construction quality and efficiency, avoids jamming, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of leveling machines, in particular to a novel leveling machine telescopic arm which comprises a one-section arm, a two-section arm and a three-section arm, the two-section arm is movably arranged in the one-section arm, the three-section arm is movably arranged in the two-section arm, a driving device and a first limiting device are arranged between the one-section arm and the two-section arm, a power transmission device and a second limiting device are arranged between the two-section arm and the three-section arm, the three-section arm comprises a U-shaped plate and a V-shaped plate, the V-shaped plate is fixedly arranged at the top of the U-shaped plate, and the power transmission device is matched with the U-shaped plate. The three-section arm of the application comprises the U-shaped plate and the V-shaped plate, the U-shaped plate and the V-shaped plate are combined into a six-surface structure, the strength of the three-section arm is improved, the quality and efficiency of floor construction are ensured, the three-section arm structure is stable and durable, and the three-section arm can be freely extended and retracted without being stuck. The upper chain is movably arranged in the top groove of the V-shaped plate, so that the upper chain does not occupy space, the cross-sectional area of the three-section arm can be maximized, and the strength of the three-section arm is ensured.
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Citation Information

Patent Citations

  • Telescopic arm of leveling machine

    CN215055446U

  • Telescopic arm structure on laser leveling machine

    CN105386601A

  • Telescopic arm of leveling machine

    CN113123602A

  • Deep excavator

    JP1996120704A