Galling device for prestressed anchor recess of rail slab

Abstract

The invention discloses a galling device for a prestressed anchor recess of a rail slab, which is a rubber sleeve sleeved on an anchor recess hole former. A plurality of protrusion bodies are distributed on the outer surface of the rubber sleeve; the rubber sleeve is in a cylinder shape or a circular truncated cone shape; and the protrusion bodies are lug bosses in rectangular shapes, trapezoidal shapes, frustum cone shapes, frustum shapes, semi-cylindrical shapes, prismatic shapes, hemispheric shapes, hyperbolic tower shapes, steamed bun shapes, Chinese checker shapes or massif shapes. The galling device can be arranged on an anchor recess template hole former, directly engraves a rough surface on the concrete of the rail slab, can be recycled, saves materials, and reduces the workload of manual chiseling; and the galling marks are regular, the forming of the anchor recess is complete and beautiful, and the damage to the concrete of the rail slab due to chiseling is avoided.

Description

technical field [0001] The invention relates to a roughening device for an anchor hole of a railway track plate. Background technique [0002] At present, unbonded prestressing is generally used in railway track slabs. After the prestressed tendons are stretched, the anchor holes are sealed with anchor materials. In order to improve the bond strength between the anchor materials and the track slab concrete, it is necessary to Anchor hole concrete is chiseled. At present, the most widely used methods are manual chiseling with steel drills or electric picks. These two chiseling methods are not only time-consuming, laborious, inefficient, and ineffective, but also easily damage the track slab. Contents of the invention [0003] In order to overcome the defects in the prior art, the present invention provides a railway track slab, which not only has good effect, but also saves manpower and materials, and at the same time avoids the damage to the concrete of the track slab by g...

AI Technical Summary

Problems solved by technology

[0002] At present, unbonded prestressing is generally used in railway track slabs. After the prestressed tendons are stretched, the anchor holes are sealed with anchor materials. In order to improve the bond strength between the anchor materials and the track slab concrete, it is necessary to The anchor hole concrete is chiseled. At present, the most widely used methods are manual chiseling with steel drills or electric picks. These two chiseling methods are not only time-consuming, laborious, inefficient, and ineffective, but also easily damage the track plate.

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