Special precision bearing wear-resistant structure for high-speed cutting machine tool

Abstract

The utility model relates to the field of high-speed cutting machine tools, in particular to a special precision bearing wear-resistant structure for a high-speed cutting machine tool, which comprises a wear-resistant component arranged between an outer ring and an inner ring of a bearing. According to the precise bearing wear-resistant structure special for the high-speed cutting machine tool, through the arrangement of the bearing outer ring, the bearing inner ring, the balls, the retainer, the connecting blocks, the auxiliary balls, the first wear-resistant layer and the second wear-resistant layer, the wear resistance of the interior of the bearing can be effectively improved, and the situation that the service life of the bearing is seriously affected due to bearing wear caused by long-term use is avoided; high-speed rotation is formed between the bearing outer ring and the bearing inner ring through the balls, and the retainers outside the balls and the connecting blocks and the auxiliary balls on the two sides are matched with the balls to rotate at the same time, so that the friction force between the balls and the bearing outer ring and the bearing inner ring is reduced, and the wear resistance of the whole bearing is improved; meanwhile, the first wear-resistant layer and the second wear-resistant layer are coated inside the outer ring and the inner ring of the bearing, so that the wear resistance of the balls between the first wear-resistant layer and the second wear-resistant layer is improved.

Description

Technical Field

[0001] The utility model relates to the field of high-speed cutting machine tools, in particular to a special precision bearing wear-resistant structure for high-speed cutting machine tools. Background Art

[0002] High-speed cutting machine tools are a type of mechanical equipment widely used in industrial production. Their characteristic is that the spindle tool or laser beam processes the workpiece at extremely high rotation speed or energy density, thereby achieving fast, precise and high-quality cutting. Bearings are an important component in high-speed cutting machine tools. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

[0003] Existing precision bearings for high-speed cutting machine tools include an inner ring, an outer ring, a retainer, and balls. However, due to the long-term and high-intensity rotation of the balls, the lubricating oil on the ball surface is consumed, resulting in increased friction between the balls and the inner and outer rings. This makes the product easy to wear during use, which seriously affects its service life and greatly reduces its safety during use.

[0004] Therefore, it is necessary to invent a special precision bearing wear-resistant structure for high-speed cutting machine tools to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a wear-resistant structure of a precision bearing specially designed for high-speed cutting machine tools, which uses balls between the outer ring and the inner ring of the bearing to form high-speed rotation, and the retaining frame outside the ball and the connecting blocks and auxiliary balls on both sides cooperate with the balls to rotate simultaneously, thereby reducing the friction between the ball and the outer ring and inner ring of the bearing, and improving the wear resistance of the entire bearing. At the same time, a first wear-resistant layer and a second wear-resistant layer are applied to the inside of the outer ring and the inner ring of the bearing, and the wear resistance of the ball between the two is also improved to solve the problem raised in the above-mentioned background technology that the existing precision bearings specially designed for high-speed cutting machine tools include an inner ring, an outer ring, a retainer and balls, but due to the long-term high-intensity rotation of the balls, the lubricating oil on the surface of the balls is consumed, resulting in an increase in the friction between them and the inner ring and outer ring, causing the product to wear easily during use, thereby seriously affecting its service life and greatly reducing its safety during use.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools, comprising a wear-resistant component, wherein the wear-resistant component is arranged between the outer ring and the inner ring of the bearing, wherein the inner ring is located on the inner side of the outer ring of the bearing, and the outer ring and the inner ring of the bearing are used to provide support and guidance for the wear-resistant component, and the wear-resistant component includes an inner track, and the inner track is provided with a ball for movement inside, and a retaining frame is provided on the outside of the ball, and connecting blocks are fixedly installed on both sides of the retaining frame, and auxiliary beads are provided for movement inside the connecting block, and a first auxiliary channel and a second auxiliary channel are provided on the inner surface of the outer ring of the bearing and the outer surface of the inner ring, and a first wear-resistant layer and a second wear-resistant layer are coated on the inner surface of the outer ring of the bearing and the inner surface of the inner ring.

[0007] Preferably, a sealing groove is provided on the outer surface of the bearing outer ring, and a sealing ring is provided inside the sealing groove.

[0008] Preferably, a first sliding groove and a second sliding groove are provided on both sides of the inner surface of the bearing outer ring and the outer surface of the inner ring, and sealing covers are provided inside the first sliding groove and the second sliding groove.

[0009] Preferably, the sealing cover is made of rubber, and is arranged on both sides of the outer ring and the inner ring of the bearing.

[0010] Preferably, the auxiliary balls are arranged on both sides of the rolling ball, and the auxiliary balls are slidably connected to the first auxiliary channel and the second auxiliary channel.

[0011] Preferably, the first wear-resistant layer and the second wear-resistant layer are made of tungsten carbide metal ceramic coating.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] By arranging the outer ring, inner ring, balls, cage, connecting blocks, auxiliary balls, first wear-resistant layer and second wear-resistant layer of the bearing, the wear resistance inside the bearing can be effectively improved, and the bearing wear caused by long-term use can be avoided, which seriously affects its service life. The balls are used to rotate at high speed between the outer ring and the inner ring of the bearing, and the cage outside the balls and the connecting blocks and auxiliary balls on both sides cooperate with the balls to rotate simultaneously, thereby reducing the friction between the balls and the outer ring and inner ring of the bearing, and improving the wear resistance of the entire bearing. At the same time, the first wear-resistant layer and the second wear-resistant layer are applied to the inner ring of the bearing outer ring and the inner ring, in order to improve the wear resistance of the balls between the two;

[0014] The arrangement of the bearing outer ring, sealing groove, sealing ring, inner ring, first slide groove, second slide groove and sealing cover can prevent dust, particulate matter and other impurities from entering the inner part of the bearing outer ring and inner ring, which may increase the friction of the bearing, accelerate wear, and even cause the bearing to become stuck or damaged. By providing the first slide groove and the second slide groove inside the outer ring and inner ring of the bearing, the sealing cover can be stuck inside to block dust from entering. The sealing cover is made of rubber, which has good elasticity and wear resistance, and can effectively prevent lubricant leakage and impurities from entering the bearing. At the same time, the external sealing ring of the bearing outer ring can strengthen the sealing between the bearing outer ring and the connected equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the sealing cover structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer ring and inner ring of the bearing of the present invention;

[0019] Figure 4 This is a schematic diagram of the retainer structure of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the first wear-resistant layer and the second wear-resistant layer of the utility model.

[0021] Description of reference numerals:

[0022] 1. Bearing outer ring; 2. Sealing groove; 3. Sealing ring; 4. Inner ring; 5. First slide groove; 6. Second slide groove; 7. Sealing cover; 8. Inner track; 9. Ball; 10. Cage; 11. Connecting block; 12. Auxiliary ball; 13. First auxiliary track; 14. Second auxiliary track; 15. First wear-resistant layer; 16. Second wear-resistant layer. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The utility model provides Figure 1-5The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools shown in the figure includes a wear-resistant component, which is arranged between the outer ring 1 and the inner ring 4 of the bearing, wherein the inner ring 4 is located on the inner side of the outer ring 1 of the bearing, and the outer ring 1 and the inner ring 4 of the bearing are used to provide support and guidance for the wear-resistant component, and the wear-resistant component includes an inner track 8, and the inner track 8 is provided with a ball 9 movably arranged inside, and a retaining frame 10 is provided outside the ball 9, and connecting blocks 11 are fixedly installed on both sides of the retaining frame 10, and auxiliary beads 12 are movably provided inside the connecting block 11, and the inner surface of the inner ring 1 of the bearing and the outer surfaces of the inner ring 4 on both sides are fixed. A first auxiliary track 13 and a second auxiliary track 14 are provided, and the inner surface of the outer ring 1 of the bearing and the inner surface of the inner ring 4 are coated with a first wear-resistant layer 15 and a second wear-resistant layer 16. The balls 9 are used between the outer ring 1 and the inner ring 4 of the bearing to form high-speed rotation, and the retaining frame 10 outside the balls 9 and the connecting blocks 11 and auxiliary balls 12 on both sides rotate simultaneously with the balls 9, thereby reducing the friction between the balls 9 and the outer ring 1 and the inner ring 4 of the bearing, and improving the wear resistance of the entire bearing. At the same time, the first wear-resistant layer 15 and the second wear-resistant layer 16 are coated inside the outer ring 1 and the inner ring 4 of the bearing, in order to improve the wear resistance of the balls 9 between the two.

[0025] like Figure 1 、 Figure 2 and Figure 3 As shown, a sealing groove 2 is provided on the outer surface of the bearing outer ring 1, and a sealing ring 3 is provided inside the sealing groove 2. The sealing ring 3 outside the bearing outer ring 1 can enhance the sealing between the bearing outer ring 1 and the connected equipment.

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, a first slide groove 5 and a second slide groove 6 are provided on the inner surface of the bearing outer ring 1 and the outer surface of the inner ring 4. A sealing cover 7 is provided inside the first slide groove 5 and the second slide groove 6. By providing the first slide groove 5 and the second slide groove 6 inside the bearing outer ring 1 and the inner ring 4, the sealing cover 7 can be stuck inside to prevent dust from entering.

[0027] like Figure 2 As shown, the sealing cover 7 is made of rubber and is arranged on both sides of the bearing outer ring 1 and the inner ring 4. The sealing cover 7 is made of rubber and has good elasticity and wear resistance, which can effectively prevent lubricant leakage and impurities from entering the bearing.

[0028] like Figure 4 As shown, auxiliary beads 12 are arranged on both sides of the ball 9, and the auxiliary beads 12 are slidably connected to the first auxiliary track 13 and the second auxiliary track 14. The retaining frame 10 outside the ball 9 and the connecting blocks 11 and the auxiliary beads 12 on both sides cooperate with the ball 9 to rotate simultaneously, thereby reducing the friction between the ball 9 and the outer ring 1 and the inner ring 4 of the bearing, and improving the wear resistance of the entire bearing.

[0029] like Figure 5 As shown, the first wear-resistant layer 15 and the second wear-resistant layer 16 are made of tungsten carbide metal ceramic coating. The first wear-resistant layer 15 and the second wear-resistant layer 16 are applied inside the bearing outer ring 1 and the inner ring 4 to improve the wear resistance of the ball 9 therebetween.

[0030] The working principle of this utility model is as follows: first, the inner ring 4, the balls 9, the retaining frame 10 and the auxiliary balls 12 are pressed into the outer ring 1 of the bearing through a mechanical sleeve, and then the sealing cover 7 is pressed into the first slide groove 5 and the second slide groove 6 on both sides of the outer ring 1 and the inner ring 4 of the bearing, and finally the sealing ring 3 is sleeved on the outside of the outer ring 1 of the bearing, and finally the entire bearing is installed on the shaft of a high-speed cutting machine. When the machine tool drives the inner ring 4 during high-speed operation, the balls 9 outside the inner ring 4 are set to make the inner ring 4 rotate, and the retaining frame 10 outside the balls 9 and the connecting blocks 11 and the auxiliary balls 12 on both sides rotate simultaneously with the balls 9, thereby The friction between the ball 9 and the outer ring 1 and inner ring 4 of the bearing is reduced, and the wear resistance of the entire bearing is improved. At the same time, the first wear-resistant layer 15 and the second wear-resistant layer 16 are applied to the inside of the outer ring 1 and the inner ring 4 of the bearing to improve the wear resistance of the ball 9 between the two. At the same time, the sealing covers 7 on both sides of the outer ring 1 and the inner ring 4 of the bearing can block dust from entering. The sealing cover 7 is made of rubber, which has good elasticity and wear resistance, and can effectively prevent lubricant leakage and impurities from entering the bearing. In this way, the use process of the wear-resistant structure of the precision bearing specially used for high-speed cutting machine tools is completed.

[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wear-resistant structure for precision bearings used in high-speed cutting machine tools, characterized by: The invention comprises a wear-resistant component, wherein the wear-resistant component is arranged between the outer ring (1) and the inner ring (4) of the bearing, wherein the inner ring (4) is located on the inner side of the outer ring (1) of the bearing, and the outer ring (1) and the inner ring (4) of the bearing are used to provide support and guidance for the wear-resistant component, and the wear-resistant component comprises an inner track (8), wherein the inner track (8) is provided with a ball (9) for movement, and the outer side of the ball (9) is provided with a retaining frame (10), and the retaining frame (10) is fixedly provided with a connecting block (11) on both sides, and the inner side of the connecting block (11) is provided with an auxiliary ball (12) for movement, and the inner side surfaces of the inner ring (1) and the inner ring (4) are provided with a first auxiliary path (13) and a second auxiliary path (14), and the inner surface of the inner ring (1) and the inner surface of the inner ring (4) of the bearing are coated with a first wear-resistant layer (15) and a second wear-resistant layer (16).

2. The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools according to claim 1, characterized in that: The outer surface of the bearing outer ring (1) is provided with a sealing groove (2), and a sealing ring (3) is provided inside the sealing groove (2).

3. The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools according to claim 1, characterized in that: A first slide groove (5) and a second slide groove (6) are provided on the inner surface of the bearing outer ring (1) and the outer surface of the inner ring (4), and a sealing cover (7) is provided inside the first slide groove (5) and the second slide groove (6).

4. The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools according to claim 3, characterized in that: The sealing cover (7) is made of rubber and is arranged on both sides of the bearing outer ring (1) and the inner ring (4).

5. The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools according to claim 1, characterized in that: The auxiliary beads (12) are arranged on both sides of the rolling ball (9), and the auxiliary beads (12) are slidably connected to the first auxiliary channel (13) and the second auxiliary channel (14).

6. The wear-resistant structure of a precision bearing specially used for high-speed cutting machine tools according to claim 1, characterized in that: The first wear-resistant layer (15) and the second wear-resistant layer (16) are made of tungsten carbide metal ceramic coating.

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