Low-inertia and high-heat-power friction pair for clutch brake

Abstract

The invention discloses a low-inertia and high-heat-power friction pair for a clutch brake. The low-inertia and high-heat-power friction pair comprises a friction disc and an intermediate gear disc, the friction disc and the intermediate gear disc are sequentially and alternately arranged in a back plate of the clutch brake, the friction disc comprises an inner disc, an outer disc and wedge-shapedfriction blocks, the inner disc and the outer disc are integrally designed, the double rows of multiple wedge-shaped friction blocks are fixedly mounted on each of the surfaces of the two sides of the inner disc, a gap is reserved between every two adjacent wedge-shaped friction blocks, radial and tangential cooling and circulating channels are formed by the gaps, a plurality of heat dissipationthrough holes are evenly formed in the outer disc, the heat dissipation through holes are formed in the axial direction of the outer disc and correspond to cooling air ducts, and the intermediate geardisc is placed in the passive side of the clutch from the active side of the clutch. An original integral gear disc is replaced with the hollow intermediate gear disc with excellent ventilation and cooling performance, and the hollow intermediate gear disc is placed from the passive side of the clutch to the active side of the clutch. Through the low-inertia and high-heat-power friction pair forthe clutch brake, the problem that an original clutch-brake difficultly bears high-frequency combination-separation of the rotational inertia of a system, and consequently abrasion and failure are caused by the high temperature is avoided.

Description

technical field [0001] The invention relates to the technical field of friction pairs of clutch brakes, in particular to a friction pair for clutch brakes with low inertia and high thermal power. Background technique [0002] In the cold shearing machine equipment for profiles and wire rods in steel mills, clutch-brakes are widely used to control the upward and downward linear motion of the shearing material blade. The structure of the clutch-brake is simple, compact and environmentally friendly, and its performance is superior. [0003] However, due to the increasing demand in the steel market and the rapid increase in production capacity, the clutch-brake for thousand-ton cold shear equipment, based on traditional resin friction materials, is difficult to withstand high moment of inertia and high-frequency combination-separation, start-up Moving, the high temperature rise causes the wear of the friction disc to accelerate, and the failure of the clutch-brake. As a result...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a friction pair for clutch and brake with low inertia and high thermal power, which solves the problem that the original clutch-brake is difficult to withstand the high-frequency combination-separation of the system's rotational inertia, resulting in high temperature and wear. In case of failure

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