Novel low-temperature nitrogen pipeline grinding wheel

Abstract

The invention provides a novel low-temperature nitrogen pipeline grinding wheel. The novel low-temperature nitrogen pipeline grinding wheel comprises a grinding wheel base body, a gas distribution ring, a gas collection ring, an annular bearing cap and a pipe joint. An annular groove for mounting the gas distribution ring is formed in one end surface of the grinding wheel base body. The gas distribution ring is in sealed connection with the end surface of the grinding wheel base body. The heat exchange mechanism of the novel low-temperature nitrogen pipeline grinding wheel is simple. A coolingcircuit is enclosed in a continuous manner. The flow of a cooling medium is stable and controllable. Favorable heat exchange conditions are provided by means of an external cold source. The heat exchange capacity of the grinding wheel itself is greatly increased, so that the heat exchange process is stable and reliable, the process stability of deep cutting and grinding is guaranteed, and a foundation of the process stability is laid for further popularization and application of deep cutting and grinding. The manufacturing process of the grinding wheel is relatively simple. Parts of the grinding wheel basically are not subjected to heat processing, heat treatment or other links, and the final use precision of the grinding wheel is relatively high. Traditional machining is enough for all assemblies of the grinding wheel. The manufacturing cost is greatly saved, and the machining difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of grinding wheel grinding, and in particular relates to a novel low-temperature nitrogen pipeline grinding wheel. Background technique [0002] Slow grinding and high-efficiency deep-cut grinding are modern advanced grinding technologies. These grinding processes are all deep-cut grinding. Unexpected high temperatures in the grinding arc area are easy to form during the process of implementation, resulting in process instability. Due to the large grinding arc area in the deep cutting grinding process, it is extremely difficult for the coolant to enter the nearly closed grinding arc area, and the film boiling in the grinding arc area due to high temperature makes the cooling liquid isolated from the surface of the grinding arc. With the application of high-speed grinding technology, the wind field formed by the high-speed rotation of the grinding wheel increases the difficulty for the coolant to enter the gr...

AI Technical Summary

Problems solved by technology

The cooling method of low-temperature cold air injection limits the environmental friendliness of the gas, that is, the cold air cannot cause health damage to the operator, which limits the minimum temperature and non-toxic conditions of the cold air, coupled with the injection conditions of the external cooling liquid, so the gas Jet flow is limited

Although the heat pipe grinding wheel has a compact overall structure and great potential for heat transfer efficiency, due to the high-speed rotation of the grinding wheel, the flow state of the heat transfer medium inside the heat pipe is extremely complicated, which affects its heat transfer efficiency.

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