阅读说明：本技术 一种高速轴承 (High-speed bearing ) 是由 左大虎 于 2019-12-09 设计创作，主要内容包括：本发明提供了一种高速轴承,所述高速轴承至少包括两级以上的轴承串联,它包括转轴安装于轴承内圈第一级球轴承滚动体轴承中圈和第二级球轴承滚动体装在轴承外圈上,轴承外圈安装在安装座或端盖上,在所述两级轴承滚动体中间的轴承中圈安装一个轴承中圈转子上安装轴承中圈电机转子,在电机机壳上装一个轴承中圈定子。从而实现此轴承中圈特定驱动两级轴承滚动体恒速,因此采用此轴承后转速可大幅度提升,可以替代磁悬浮轴承成本仅为磁悬浮轴承的十几之一或者几十分之一。(The invention provides a high-speed bearing, which at least comprises more than two stages of bearing series connection, and comprises a first-stage ball bearing rolling element bearing middle ring and a second-stage ball bearing rolling element which are arranged on a bearing inner ring by a rotating shaft, wherein the bearing outer ring is arranged on a bearing outer ring, the bearing middle ring in the middle of the two stages of bearing rolling elements is provided with a bearing middle ring rotor, a bearing middle ring motor rotor is arranged on the bearing middle ring rotor, and a bearing middle ring stator is arranged on a motor shell. Therefore, the bearing middle ring can drive the rolling bodies of the two-stage bearing at a constant speed, the rotating speed can be greatly increased after the bearing is adopted, and the cost of the bearing can be only one tenth or one tenth of that of a magnetic suspension bearing instead of the magnetic suspension bearing.)

1. One type of high speed bearing is a one-stage extended bearing. The novel rolling bearing comprises a rotating shaft (9), a first-stage ball bearing rolling body (2), a bearing middle ring (3) and a second-stage ball bearing rolling body (5) which are arranged on a bearing outer ring (6), the bearing outer ring is arranged on a mounting seat or an end cover (7), a bearing middle ring motor rotor (10) is arranged on a bearing middle ring rotor (4) arranged on the bearing middle ring (3) in the middle of two stages of bearing rolling bodies, and a bearing middle ring stator (11) is arranged on a motor shell (12). The bearing middle ring motor is characterized in that a bearing middle ring rotor (4) is arranged on a bearing middle ring rotor (3) in the middle of the two-stage bearing rolling bodies, a bearing middle ring motor rotor (10) is arranged on the corresponding motor shell (12), and a bearing middle ring stator (11) is arranged on the corresponding motor shell (12). A special driving source is formed to drive the bearing middle ring (3) between the rolling bodies of the two-stage bearing, and the constant rotating speed of the two-stage bearing is formed.

2. The high speed bearing of claim 1, wherein the bearing is adapted for use with an electric machine, and wherein the bearings are arranged in tandem. The bearing center ring rotor (4) comprises different shapes and infinite superposition. Therefore, the bearing inner ring (1) can be arranged on the rotating shaft (9) and on the rotating shaft rotor (15). The invention may be any bearing, including rolling, ball or roller bearings, roller bearing open, dust cap or seal type bearings, whereby a dust gasket or oil seal (8) is an option.

3. A high speed bearing according to claim 1, wherein the bearing is a high speed bearing, the bearing center ring rotor (4) is connected with a transmission belt (4-1) and is directly driven by an external motor (16), and the driving mode can drive N bearings by one motor (16).

4. The high-speed bearing according to claim 3, wherein the rotating shaft (9) is driven by a motor, the rotating shaft (9) is connected with a transmission belt (4-1) and is connected with a transmission wheel (4-3) and is arranged on a transmission wheel shaft (4-2), the rotating shaft is arranged on the transmission wheel mounting seat (4-4), the bearing (4-4) is arranged on a transmission wheel mounting seat (4-5), and the transmission belt (4-1) is connected with a bearing middle ring rotor (4) on the transmission wheel shaft (4-2). The power of the rotating shaft (9) is transmitted by a transmission belt (4-1), the size difference of the transmission wheels (4-3) realizes mechanical speed reduction to drive the bearing middle ring (3), and the constant rotating speed of the bearing middle ring (3) in the middle of the two stages of bearing rolling bodies is realized.

5. The high-speed bearing according to claim 4, wherein the rotating shaft (9) is driven by a motor, the rotating shaft (9) and the special soft material have the functions of wear resistance, skid resistance and temperature rise (4-10) and are arranged on the speed reducing wheels (4-7), the speed reducing wheels (4-6) and the speed reducing wheel mounting seats (4-8) and are arranged on the speed reducing wheel mounting seats (4-9). The speed reduction wheel shaft (4-6) is provided with special soft material with the functions of wear resistance, skid resistance and temperature rise (4-10) and is connected with the speed reduction wheel (4-7) and arranged on the bearing middle ring rotor (4), and the mode adopts the transmission of the power of the rotating shaft (9) by the speed reduction wheel (4-7). The size difference of the speed reducing wheels (4-7) realizes mechanical speed reduction to drive the bearing middle ring (3), and the constant rotating speed of the bearing middle ring (3) in the middle of the two stages of bearing rolling bodies is realized.

Technical Field

The invention relates to a bearing, in particular to a solution of a set of high-speed bearing.

Background

The prior similar technical schemes are 3;

first technical scheme

The traditional rolling bearing and sliding bearing are influenced by the bearing structure (high-speed friction), material, lubricating property and lubricating mode of the shaft, even if a special lubricating mode is added. The limit rotating speed is only 12 thousands of revolutions, the timing oiling processing is difficult, and the service life is limited.

Second technical scheme

The magnetic suspension bearings have the advantages that the rotating speed is not limited, the speed can be increased infinitely, each magnetic suspension bearing needs to be matched with a stator, a rotor and an independent driver, and therefore the service life is not unlimited. The defect is that some industries have patent technology monopoly due to the fact that the special structure cost is extremely high and has a difference of several times or even dozens of times.

Third technical means

The chinese utility model patent with publication number CN201373024Y discloses a "high-speed bearing", which realizes high speed by using 2-ring or multi-ring bearing series connection. That is to say, the structure solves the problems of friction and heat generation of the bearing under the high-speed working condition. The problem is how to make the rotating speed of the two bearings constant, and the prior art cannot make the two bearings in mass production, namely, the rotating speed of the two-stage bearings is constant, so that once the two bearings stop working, the bearings are rapidly heated and deformed to be blocked due to too large friction coefficient. The invention discloses a solution for enabling a two-stage bearing to be constant in speed, which realizes mass production and low cost and can be suitable for being used for a long time under different working conditions.

Disclosure of Invention

In order to overcome the uneven rotating speed of the two-stage bearing, power input specific to a bearing middle ring (the bearing middle ring is the middle of two rings of bearing balls and is named as the bearing middle ring) is adopted. Thereby realize the constant rotational speed constant speed ratio of bearing center race, this patent adopts independent motor to drive this bearing center race in order to adapt to different operating modes. The structure can be produced in a large scale to break the limit of the rotating speed and prolong the service life. The high-speed bearing at least comprises more than two stages of bearings, the outer ring of the first-stage bearing is also used as the inner ring of the second-stage bearing, and the high-speed bearing sequentially extends along the radial direction and the axial direction of the bearing or the axial direction and the radial direction of the bearing in a mixed way, or the high-speed bearing can be formed by combining two bearings, three bearings and three bearings in series, or the high-speed bearing can be formed by connecting the bearings.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the present invention directly driven by a motor;

FIG. 2 is a schematic view of the present invention employing a motor to directly drive and combine with a motor;

FIG. 3 is a schematic view of the present invention employing a motor to directly drive and combine with a motor;

FIG. 4 is a schematic diagram of the present invention employing an external drive of the motor;

FIG. 5 is a schematic view taken along line A-A of FIG. 4;

FIG. 6 is a schematic diagram of the present invention employing belt deceleration to achieve independent power input;

FIG. 7 is a schematic view taken along line E-E of FIG. 6;

FIG. 8 is a schematic view taken along line F-F of FIG. 6;

FIG. 9 is a schematic diagram of the independent power input realized by adopting a deceleration wheel to decelerate;

FIG. 10 is a schematic view taken along line B-B of FIG. 9;

FIG. 11 is a schematic view taken along line C-C of FIG. 9;

in the figure, 1, a bearing inner ring, 2, a primary bearing rolling body, 3, a bearing middle ring, 4, a bearing middle ring rotor, 4-1, a transmission belt, 4-2, a transmission wheel shaft, 4-3, a transmission wheel, 4-4, a transmission wheel mounting seat bearing, 4-5, a transmission wheel mounting seat, 4-6, a reduction wheel shaft, 4-7, a reduction wheel, 4-8, a reduction wheel mounting seat bearing, 4-9, a reduction wheel mounting seat, 4-10, special soft materials have the functions of wear resistance and anti-skid temperature rise, 5, a secondary bearing rolling body, 6, a bearing outer ring, 7, a mounting seat or an end cover, 8, a dustproof pad or an oil seal, 9, a rotating shaft, 10, a bearing middle ring motor rotor, 11, a bearing middle ring stator, 12, a motor shell, 13, a motor rotor magnetic steel, 14, a motor stator and 15 rotating shaft rotor, 16. an electric motor.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, but may be of different shapes.

[ example 1 ]

One type of high speed bearing shown in fig. 1 is a one-stage extended bearing. The bearing middle ring motor comprises a rotating shaft 9, a first-stage ball bearing rolling body 2, a bearing middle ring 3 and a second-stage ball bearing rolling body 5, wherein the rotating shaft is arranged on a bearing inner ring 1, the bearing middle ring 3 and the second-stage ball bearing rolling body 5 are arranged on a bearing outer ring 6, the bearing outer ring is arranged on a mounting seat or an end cover 7, a bearing middle ring motor rotor 10 is arranged on a bearing middle ring rotor 4 arranged on the bearing middle ring 3 in the middle of the two-stage bearing rolling bodies, and a bearing middle ring stator. Therefore, a specific driving source is realized to drive the bearing middle ring 3 in the middle of the two-stage bearing rolling bodies to have a constant speed, so that the rotating speed can be greatly increased after the bearing is adopted, and the cost of the bearing instead of a magnetic suspension bearing is only one tenth to one dozen times of that of the magnetic suspension bearing.

[ example 2 ]

The high-speed bearing is used together with a motor as shown in figure 2, and can be connected in series two by two. The bearing inner race rotor 4 may be of different shapes, so that the bearing inner race 1 may be mounted on the shaft 9 or on the shaft rotor 15. The invention may be any bearing, such as a rolling bearing, a ball bearing or a roller bearing, but also an open, dust-proof cap or seal ring type bearing, whereby a dust-proof pad or oil seal 8 is an optional component.

[ example 3 ]

Referring to fig. 4, fig. 5 is a schematic view along line a-a of fig. 4, the bearing inner ring rotor 4 is connected with a transmission belt 4-1 and directly driven by an external motor 16, which is equivalent to a transmission mechanism added between the bearing inner ring 3 and the bearing inner ring motor rotor 10 to realize external driving, and the driving mode can drive N bearings by one bearing inner ring motor 16.

[ example 4 ]

Such a high speed bearing is shown in fig. 6, with fig. 7 being a schematic view along line E-E of fig. 6, and fig. 8 being a schematic view along line F-F of fig. 6. The rotating shaft 9 is driven by a motor, the rotating shaft 9 is connected with a transmission belt 4-1 and a transmission wheel 4-3, the transmission belt 4-1 is arranged on a transmission wheel shaft 4-2, the transmission wheel mounting seat bearing 4-4 is arranged on a transmission wheel mounting seat 4-5. A transmission belt 4-1 is connected with a bearing middle ring rotor 4 on the transmission wheel shaft 4-2. In the mode, the power of a rotating shaft 9 is transmitted by a transmission belt 4-1, the size difference of the transmission wheels 4-3 realizes mechanical speed reduction to drive the bearing middle ring 3, and the constant rotating speed of the bearing middle ring 3 in the middle of two stages of bearing rolling bodies is realized.

[ example 5 ]

Fig. 10 is a schematic view of the high speed bearing shown in fig. 9, taken along the line B-B in fig. 9, and fig. 11 is a schematic view taken along the line C-C in fig. 9. The rotating shaft 9 is driven by a motor, the rotating shaft 9 is connected with a special soft material and has the functions of wear resistance, skid resistance and temperature rise, 4-10 is arranged on the speed reducing wheel 4-7, is arranged on the speed reducing wheel shaft 4-6, is arranged on the speed reducing wheel mounting seat, and is arranged on the speed reducing wheel mounting seat 4-9 through a bearing 4-8. The speed reduction wheel shaft 4-6 is provided with special soft material with the functions of wear resistance, skid resistance and temperature rise, and the speed reduction wheel 4-10 and the speed reduction wheel 4-7 are arranged on the bearing middle ring rotor 4, and the mode adopts the mode that the power of a rotating shaft 9 is transmitted by the speed reduction wheel 4-7. The size difference of the speed reducing wheels 4-7 realizes mechanical speed reduction to drive the bearing middle ring 3, and realizes the constant rotating speed of the bearing middle ring 3 in the middle of the two stages of bearing rolling bodies.