Greasing and grease balancing system for bearing

Abstract

The invention relates to a bearing grease injection and uniform grease system, especially a grease injection system for bearings with double inner rings, which injects the gap between the nozzle of the grease uniform grease system and the double inner rings of the bearing during grease injection In contrast, the bearing positioning action system can make the bearing rotate around the central axis of the bearing. The lubricating grease of the present invention is evenly distributed in the bearing under the rolling action of the balls, and at this time, the amount of lubricating grease is less, there is no grease overflow, the whole operation process is clean, and there is no pollution. work efficiency.

Description

technical field [0001] The invention relates to a grease equalizing system for lubricating grease of a bearing. Background technique [0002] At present, the wheel hub bearing units produced must be greased. For a long time, the grease injection structure at both ends of the bearing has been used in the bearing production industry. , which includes a cylinder, a piston, a piston rod and a handle. One end of the piston rod is connected to the piston, and the other end is connected to the handle. The piston is provided with a sealing ring. The outer circle of the sealing ring slides with the inner wall of the cylinder. The guide sleeve is fixed, and the lower opening of the guide sleeve is on the pallet of the bearing support. The inner chamber of the guide sleeve of this bearing grease injector can be manufactured as a set according to the shape, structure and size of the bearing to be greased. But this structure has the following problems in long-term use: 1. The amount of...

AI Technical Summary

Problems solved by technology

However, this structure has the following problems in long-term use: 1. The amount of grease injected is unstable

The amount of grease in a single set of bearings in a batch of bearings is different. Compared with a reasonable amount of grease, it is more or less, which affects the long-term service life of the bearings.

2. Unreasonable fat distribution in the circumferential direction

Experiments have shown that where there is less grease, the bearing is prone to temperature rise and "hot shaft" during dynamic conditions, which seriously affect the overall service life of the bearing, and where there is more grease is prone to serious leakage

3. Grease

With this structure, when the grease injection head is lifted, the residual grease accumulates on the edge of the grease injection head, which reduces the amount of grease injected into the bearing and reduces the service life of the bearing.

4. Hydraulic control is prone to oil leakage

5. Grease injection by such a process method results in thick oil at both ends of the bearing, and thin or almost no grease on the bearing raceway of the bearing.

6. Such a process method leads to excess grease overflowing at both ends of the thick oil during the use of the bearing, resulting in grease leakage; the two raceways with less oil are overheated due to the sliding overheating of the less oil rollers and the raceways, and the internal stress is unevenly rolled Cracks or sintering fractures in the child and raceway

This technology solves some problems, but the greasing is still not uniform enough, the greasing needs to be added on both sides, and more grease will overflow at the same time

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