Thermal assembling method for angular contact ball bearing and heating apparatus

Abstract

The invention discloses a method for thermally assembling an angular contact ball bearing and a heating device. The heating device comprises a temperature controller and an electric heating device; the temperature controller is connected with the heating element of the electric heating device by a power supply circuit; the top part of the electric heating device is provided with an electric hot plate table-board used for holding and heating the outer sleeve ring of the bearing; a thermoelectric couple capable of feeding back the actual temperature signal of the electric hot plate table-board inserted into the electric hot plate table-board is connected with the outside of the temperature controller; during the thermal assembling, the outer sleeve ring of the bearing or the outer sleeve ring of the bearing internally provided with a retainer is arranged on the electric hot plate table-board; then the temperature controller controls the electric heating device to be electrified for heating and controls the heating temperature of the electric hot plate table-board until the outer sleeve ring of the bearing, or the outer sleeve ring of the bearing internally provided with a retainer is heated and thermally expanded to a required caliber; then the outer sleeve ring of the bearing, or the outer sleeve ring of the bearing internally provided with a retainer is combined and sheathed with the other parts of the bearing. The invention overcomes the defects of oil boiling heating of the thermal assembling of the bearing, can reduce oil smoke pollution and can improve the production safety.

Description

technical field [0001] The invention relates to the technical field of bearing assembly, in particular to a method and a heating device for thermal assembly of angular contact ball bearings. Background technique [0002] Angular contact ball bearing is a kind of high-speed bearing, which is a kind of angular contact ball bearing. It can be divided into three categories according to its structural characteristics: (1) the outer ring of the bearing has a slope; (2) the inner ring of the bearing has a slope; (3) ) There are three types of slopes on the outer and inner rings of the bearing. There are locks on the above three types of slopes. At present, the assembly of angular contact ball bearings adopts the method of oil boiling, that is, the inner sleeve, steel balls and cage are assembled into parts to be assembled. Then put the bearing outer ring with a slope into the oil and heat it. When it is heated and expands, the lock will expand accordingly. Wait until the heat fi...

AI Technical Summary

Problems solved by technology

However, due to the assembly method of the oil-boiled ferrule, not only the heating cycle is long and the speed is slow, but also the oil fume pollution is serious, which is harmful to the human body and the environment; the optimum temperature cannot be adjusted according to the size of the ferrule; and the oil is on the electric heater. Heating is easy to cause fire, unsafe, and poses a threat to the operator's work

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