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High speed mute precision bearing retainer and production process thereof

A technology of precision bearings and production technology, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as large noise, and achieve the effect of reducing noise and heat

Active Publication Date: 2010-12-08
SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

from figure 1 It can be seen from the figure that the inner edge of the ball pocket 1 and the ball pocket connecting part 2 of the bearing cage in the prior art are on the same circumference, and the outer edge is also on the same circumference. During the working process of the bearing rotating at high speed , due to the action of centrifugal force, the lubricating grease in the ball pocket is completely thrown out. In the absence of lubricating grease, the vibration acceleration limit of the bearing will exceed the required value, and a large noise will be generated during the rotation of the bearing.

Method used

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  • High speed mute precision bearing retainer and production process thereof
  • High speed mute precision bearing retainer and production process thereof
  • High speed mute precision bearing retainer and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment is an embodiment of the production process of a specific high-speed silent precision bearing cage, including the following steps:

[0031] (1) Use the blanking stamping die to stamp the blank, so that the ring after stamping presents a raised shape with eight petals, such as figure 2 as shown, figure 2 It is the front view and side view sectional view of the ring after blanking. A general bearing cage can have 6 to 14 above-mentioned petal-shaped protrusions.

[0032] (2) Locate with the shape of the raised part, punch the initial shape, and initially complete the bending, such as image 3 as shown, image 3 It is the front view and side sectional view of the ring diagram after stamping the initial shape.

[0033] (3) Use the precision shaping stamping die to carry out precise shaping on the ring after stamping the initial shape to form a high-precision ball pocket working surface, so that the roughness and surface brightness of the working surface...

Embodiment 2

[0039] See Figure 5 and 6 , Figure 5 The front view of the high-speed silent precision bearing cage prepared by the production process described in embodiment 1, Figure 6 A three-dimensional effect diagram of the high-speed silent precision bearing cage prepared by the production process described in Example 1.

[0040] This embodiment provides a high-speed silent precision bearing cage 3, which includes two cage assemblies, and the two cage assemblies are fixedly connected by rivets 4. The cage assembly includes a ball pocket 1 and a ball pocket connecting part 2, and the ball pocket 1 includes an annular portion 101 and a protruding portion 102. The annular portion 101 is in close fit with the rolling body of the bearing, and there is a gap when the protruding portion 102 is mated with the rolling body of the bearing. It can also be said that the outer edge of the working surface of the ball pocket is raised relative to the outer edge of the connecting part of the ball...

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Abstract

The invention discloses a process for producing high-speed mute precision bearing cages. The process comprises the following steps of a): stamping, blanking, forming a circular ring and forming a plurality of protrusions on the outer circumference of the circular ring; b): stamping an annular part and a convex part of the circular ring to be a ball pocket part in an initial shape; c): stamping and shaping a ball-pocket working surface, forming cage components and ensuring that the ball-pocket working surface corresponding to the convex part has a clearance when the ball-pocket working surfaceis matched with a rolling element; and d): fixedly connecting two cage components so as to form a high-speed mute precision bearing cage. The invention also discloses a high-speed mute precision bearing cage. A bearing of the high-speed mute precision bearing cage produced by use of the production process provided by the invention is sufficient and good in grease lubrication, can reduce the limitvalue of vibration acceleration, and is low in noise during high-speed revolution.

Description

technical field [0001] The invention relates to a high-speed silent precision bearing cage and a production process thereof, belonging to the field of bearings. Background technique [0002] Deep groove ball bearings can be divided into non-high-speed ordinary precision bearings and high-speed silent precision bearings. The working requirements of non-high-speed ordinary precision bearings are: speed at 1000-3000r / min (rev / min), continuous or intermittent rotation, bearing diameter The clearance is greater than 0.012mm (millimeters), and the vibration acceleration limit is not limited. Therefore, the bearing cage assembled with it does not need to consider the storage of lubricating grease on the working surface of the ball pocket. In the low-speed rotation of 1000-3000r / min, its rotation conditions, accuracy and noise can meet its technical requirements. Non-high-speed ordinary precision bearings are generally used in relatively noisy occasions, and there is no high requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/42F16C33/38
Inventor 郑广辉
Owner SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD