Horizontal wheel-side brake for portal crane

Abstract

The invention relates to the field of electric wheel-side brakes, in particular to a horizontal wheel-side brake for a portal crane. The horizontal wheel-side brake comprises a square support, friction plates and a speed reducing motor and further comprises a screw rod moving assembly arranged in the square support and a clamping jaw assembly; the speed reducing motor is arranged on the square support, the output shaft is in transmission connection with one end of an input shaft of the screw rod moving assembly; an opening of the clamping jaw assembly is arranged in the radial direction of the wheel side, the clamping jaw assembly is horizontally arranged on the outer side of the square support, the clamping jaw assembly comprises a driving rod, a reset spring and a torsion spring, the driving rod is in transmission connection with the working end of the screw rod moving assembly, and the friction plates are arranged on the two sides of a clamping opening of the clamping jaw assembly; the reset spring is coaxially arranged on the driving rod in a sleeving manner; the torsion spring is arranged at the other end of the input shaft of the screw rod moving assembly in a sleeving mode, and the two ends of the torsion spring are fixedly connected with the inner side of the square support and the circumferential surface of the input shaft of the screw rod moving assembly respectively. The wheel-side brake can be automatically braked during power failure and can be horizontally mounted on the portal crane.

Description

technical field [0001] The invention relates to the field of electric wheel brakes, in particular to a horizontal wheel brake used for gantry cranes. Background technique [0002] Gantry cranes are large-scale machinery widely used in railway freight yards, ports, wharves and other places to load and unload large and heavy goods and containers. With the development of the domestic economy, the market demand for gantry cranes is becoming more and more vigorous. However, in coastal areas, sudden sudden strong winds occur from time to time in strong convective weather, and the dynamic wind protection device sometimes cannot guarantee reliable braking and stop, resulting in the overall tipping of the crane and causing major safety accidents. [0003] In recent years, there have been frequent incidents of coastal gantry and gantry cranes collapsing due to sudden strong winds during operation, resulting in casualties and huge economic losses. The windproof capabilities of various ...

AI Technical Summary

Problems solved by technology

[0008] The device is hydraulically braked and requires an external hydraulic station and various control oil circuits. There are problems such as oil leakage, easy damage, and serious pollution, and it is not suitable for the braking of gantry cranes.

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