A kind of bearing series device and using method

Abstract

The invention discloses a bearing series device and a method for using it. The bearing series device comprises a base, a mandrel installation hole is arranged on the base, a mandrel is arranged on the base, and the bottom end of the mandrel is plugged into the mandrel. In the shaft installation hole, a pump shaft matching cavity matching the pump shaft is arranged in the mandrel, a shoulder 1 is arranged on the periphery of the lower part of the mandrel, and the lower end surface of the shoulder fits with the upper end surface of the base, and the shoulder A cushion block is arranged above the first shoulder, and the cushion block is sleeved on the mandrel above the shoulder one, a spring is arranged between the cushion block and the shoulder one, the clamp is connected outside the cushion block, and the clamp is fixed on the base , a locking mechanism for fixing the outer ring of the lowermost bearing is set between the base, the fixture and the spacer. First, assemble the first bearing, fix the outer ring of bearing one and then connect other bearings in series. It is easy to use. When the bearings are connected in series, the The outer ring of the lowest bearing will not be misplaced, realizing the series assembly of two or more bearings, and the assembly quality is good.

Description

technical field [0001] The invention relates to the design field of bearing assembly, in particular to a bearing series device and a use method. Background technique [0002] Under normal circumstances, when a bearing needs to be installed on the pump shaft, the staff needs to manually put one bearing into the lower press-fitting mould, put the pump shaft into the press-fitting machine, put the other bearing into the upper end of the pump shaft, and hold it by hand. The bearings at both ends of the pump shaft are press-fitted. This kind of press-fitting device has a high scrap rate, a low one-time pass rate, and poor coaxiality after connection. Moreover, the press-fitting process is inefficient and the operation risk factor is large. [0003] The prior art discloses a bearing pressing device, which includes a base, a lower mold on the base, and an upper mold above the lower mold. The lower mold has a vertical cavity for accommodating the rotor body. The first through hole ...

AI Technical Summary

Problems solved by technology

When press-fitting the bearing on the rotor, put the rotor body into the concave cavity first, ensure that the lower shaft of the rotor is located in the through hole 1, put the bearing into the accommodation cavity, temporarily fix it through the fixing structure, press down the lower mold, and the rotor The upper shaft passes through the bearing and the second through hole in order to achieve the purpose of inserting the bearing into the upper shaft of the rotor. Since the upper shaft of the rotor and the bearing are an interference fit, the friction between the two is greater than the friction between the bearing and the fixed structure After the pressing is completed, the upper mold rises, and the bearing breaks away from the fixed structure. This device has high pressing accuracy and good pressing effect, but there is no locking component to fix the outer ring on the assembled bearing, and the pressing is connected in series with the bearing. When the bearing is used, the upper bearing outer ring impacts the lowermost bearing outer ring, causing dislocation damage to the lowermost bearing, and it is impossible to realize the series connection of two or more bearings

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