Device for testing hot compressive strength of glass fiber drawing rod

Abstract

The invention discloses a device for testing the hot compressive strength of a glass fiber drawing rod, which comprises a workbench, wherein two upright posts are fixed at two ends above the workbench, a temperature adjusting box is arranged between the two upright posts, two rotating plates are arranged in the temperature adjusting box, the two rotating plates are sequentially arranged from leftto right, the two rotating plates are fixedly connected through a connecting rod, a plurality of round holes are formed in the two rotating plates, drawing rods are arranged in the round holes, a cavity is formed in the inner side wall of each round hole, and a sleeve is fixed in the cavity. According to the device of the invention, a movable sucker is additionally arranged in a round hole in an original device for testing the hot compressive strength of the glass fiber drawing rod, and the drawing rods with different sizes are adsorbed by the movable suckers, so that the round hole can be plugged with the drawing rods with different sizes, and the application range of the device is enlarged.

Description

technical field [0001] The invention belongs to the technical field of drawing rod testing, in particular to a device for testing the hot compressive strength of a glass fiber drawing rod. Background technique [0002] Synthetic insulators are new types of insulators made of organic polymer insulation materials. They are composed of core rods (inner insulation), shed sheaths (outer insulation), end fittings and accessories (voltage equalizing rings). The mandrel is formed by impregnating a large number of glass fibers parallel to the axis with resin. The tensile strength is higher than 1100MPa, which is 3 to 5 times that of high-strength porcelain. It has good flex resistance and fatigue resistance, and can bear the mechanical load of composite insulators. The shed sheath is composed of polymer organic composite material (epoxy resin → EPDM rubber → room temperature vulcanized silicone rubber → high temperature vulcanized silicone rubber) attached to the outside of the mandr...

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Problems solved by technology

[0003] The prior art has the following problems: 1. The existing glass fiber drawing rod thermal compressive strength testing device is provided with a plurality of round holes on the rotating plate. Pulling the rod, testing different pulling rods by rotating the rotating plate, but the size of the round hole is fixed, so it can only be used to insert a single-sized pulling rod, resulting in a single range of use of the device; 2. The existing The thermal compressive strength test device for glass fiber drawing rods is connected to two rotating plates through a rotating shaft, and the rotating plate is driven to rotate by manually operating the rocker. The labor intensity of the staff is high, and the temperature in the temperature adjustment box is too high. When the heat is transferred to the rocker, it is easy to cause burns

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