CN102562809A - Cylinder roller bearing with fine spiral embossments - Google Patents

Abstract

The invention discloses a cylindrical roller bearing with spiral silk flow. Including bearing outer ring, bearing inner ring, cage and cylindrical rollers; on the surface of each cylindrical roller, there is a helical thread flow storing lubricant. The spiral thread flow is divided into left-handed and right-handed. The number of right-handed cylindrical rollers is equal, and they are installed at intervals between the bearing outer ring and the bearing inner ring. In the present invention, lubricant is stored in the spiral silk flow evenly distributed on the rolling body. After the bearing is in operation, sufficient and uniform lubrication between the rolling body, the inner ring and the outer ring can be realized, the lubricating performance of the bearing is improved, and the service life of the bearing is improved; The evenly distributed spiral silk flow on the rolling element stores lubricant, which is beneficial to reduce the friction and wear of the bearing; the evenly spaced distribution of left and right grooved rollers drives the circulation of lubricant, which is conducive to heat dissipation, uniform distribution of lubricant and Improvement of service life.

Description

Cylindrical roller bearings with helical filament flow

technical field

The invention relates to a cylindrical roller bearing, in particular to a cylindrical roller bearing with helical silk flow.

Background technique

Bearings change the sliding friction between the running shaft and the shaft seat into rolling friction through rolling elements, thereby reducing friction loss. The rolling elements are evenly distributed between the inner ring and the outer ring of the bearing by means of the cage, and their shape, size and quantity directly affect the performance and life of the rolling bearing. At present, the lubrication of bearings mainly considers the lubrication between the inner and outer rings and rolling elements. The lubricant in the bearing is usually unevenly distributed, and the lubricant at the end of the bearing cannot enter the contact area, which reduces the overall lubrication performance of the bearing and also reduces the service life of the lubricant in the contact area to a certain extent.

Based on the above background, without reducing the bearing capacity of the rolling elements, if the surface of the rolling elements can evenly store lubricant, the bearing can achieve simultaneous lubrication between the rolling elements and the inner ring and outer ring when the bearing is in operation, reducing friction and wear , It is beneficial to improve the life of the bearing. At the same time, if the circulation of the lubricant can be promoted during the operation of the rolling elements, it will be conducive to sufficient lubrication between the rolling elements, the inner ring and the outer ring, and will be beneficial to improve the service life of the lubricant.

Contents of the invention

The object of the present invention is to provide a cylindrical roller bearing with a spiral thread flow, which can store lubricant and circulate the lubricant in the bearing, so as to improve the working lubrication performance of the bearing and the service life of the lubricant.

The technical scheme adopted in the present invention is:

The invention comprises a bearing outer ring, a bearing inner ring, a cage and cylindrical rollers; a helical silk flow storing lubricant is processed on the surface of each cylindrical roller.

The spiral threads are divided into two types: left-handed and right-handed. The number of cylindrical rollers with left-handed spiral threads and the number of cylindrical rollers with right-handed spiral threads are equal, and they are installed at intervals between the outer ring of the bearing and the inner ring of the bearing. .

，螺旋角范围为1°～70°。 The spiral silk flow is evenly distributed on the surface of the cylindrical roller, and the processing depth of the silk flow ranges from 0.05 to 0.8

, the helix angle ranges from 1° to 70°.

The beneficial effects that the present invention has are:

1) The evenly distributed spiral silk flow on the rolling element stores lubricant. After the bearing is running, it can realize sufficient and uniform lubrication between the rolling element, the inner ring and the outer ring, improve the lubrication performance of the bearing, and help to increase the service life of the bearing;

2) The evenly distributed spiral silk flow on the rolling element stores lubricant, which is beneficial to reduce the friction and wear of the bearing;

3) Cylindrical rollers with left-handed helical wire flow and cylindrical rollers with right-handed helical wire flow are evenly spaced, which promotes the circulation of lubricant, which is beneficial to heat dissipation, uniform distribution of lubricant and improvement of service life.

Description of drawings

Figure 1 is a schematic diagram of a cylindrical roller bearing with a helical filament flow.

Fig. 2 is a schematic diagram of left-handed helical wire flow distribution of cylindrical rollers.

Fig. 3 is a schematic diagram of right-handed helical wire flow distribution of cylindrical rollers.

In the figure: 1. Cylindrical roller with left-handed helical wire flow; 2. Cylindrical roller with right-handed helical wire flow.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, it includes the outer ring of the bearing, the inner ring of the bearing, the cage and the cylindrical roller; on the surface of each cylindrical roller, a helical flow of lubricant is processed.

As shown in Figure 2 and Figure 3, the spiral silk flow is divided into left-handed and right-handed, that is, cylindrical roller 1 with left-handed spiral silk flow and cylindrical roller 2 with right-handed spiral silk flow, with left-handed The number of cylindrical rollers 1 with spiral silk flow and cylindrical roller 2 with right-handed spiral silk flow are equal, and they are installed at intervals between the outer ring of the bearing and the inner ring of the bearing.

，图2、图3所示的丝流螺旋角

都为15°，丝流螺旋角

的加工范围为1°～70°。 As shown in Figure 2 and Figure 3, the spiral silk flow is evenly distributed on the surface of the cylindrical roller, and the depth of the silk flow is 0.05-0.8

, the silk flow helix angle shown in Fig. 2 and Fig. 3

Both are 15°, silk flow helix angle

The processing range is 1°～70°.

It should be emphasized that the helical silk flow on the cylindrical roller is formed by grinding or lapping, and its size is small, which does not affect the surface roughness of the rolling elements, nor does it reduce the overall load-carrying capacity of the rolling elements.

The above specific embodiments are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (3)

1. A cylindrical roller bearing with a spiral thread flow, comprising a bearing outer ring, a bearing inner ring, a cage and cylindrical rollers; it is characterized in that: a spiral thread flow storing lubricant is processed on the surface of each cylindrical roller . 2. A cylindrical roller bearing with a spiral thread flow according to claim 1, characterized in that: said spiral thread flow is divided into two types, left-handed and right-handed, and the cylindrical roller with left-handed spiral thread flow and Cylindrical rollers with right-handed helical wire flow are equal in number and spaced between the bearing outer ring and the bearing inner ring. 3. A cylindrical roller bearing with a spiral thread flow according to claim 1 or 2, characterized in that: the spiral thread flow is evenly distributed on the surface of the cylindrical roller, and the processing depth of the thread flow ranges from 0.05 to 0.8

, the helix angle ranges from 1° to 70°.

Images