Low-temperature high-speed deep groove ball bearing

Abstract

The utility model provides a low-temperature high-speed deep groove ball bearing, which relates to the technical field of bearing devices, and comprises a bearing outer ring, a first ball mounting sleeve and a second ball mounting sleeve are arranged in the bearing outer ring, and the first ball mounting sleeve and the second ball mounting sleeve form sealed clamping butt joint. Multiple sets of ball mounting inner rings are arranged on the peripheral sides of the first ball mounting sleeve and the second ball mounting sleeve, oil ring sleeves are inserted into the side edges of the first ball mounting sleeve and the second ball mounting sleeve at equal intervals, and pressing air bags are mounted at the tops of the oil ring sleeves. According to the utility model, the supply of lubricating oil is automatically controlled, so that the whole bearing is always in a good lubricating state during working, the uniformly coated lubricating oil reduces the direct contact between internal parts of the bearing, reduces the abrasion, effectively lubricates and reduces the abrasion of the bearing, prolongs the service life of the bearing, and reduces the problem of grease leakage; the equipment maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing devices, in particular to a low-temperature and high-speed deep groove ball bearing. Background Art

[0002] Bearings are important and key basic components in the equipment manufacturing industry. They directly determine the performance, quality and reliability of major equipment and host products, and are known as the "heart" components of equipment manufacturing. After years of development, although my country's bearing industry has formed a considerable scale and ranks third in the world, most of it is concentrated in the low-end. In the field of high-end bearing manufacturing, there is still a considerable gap compared with developed countries. Deep groove ball bearings are suitable for high-speed or even extremely high-speed operation, and are very durable and do not require frequent maintenance. Deep groove ball bearings mainly bear radial loads, and can also bear radial loads and axial loads at the same time. When it only bears radial loads, the contact angle is zero.

[0003] However, during the use of the existing deep groove ball bearings, the ball diameter can be adjusted at will by setting a spring, but its distribution position easily leads to the problem of grease leakage, so the grease replenishment cycle is also shortened, which increases the cost of equipment maintenance. Therefore, a low-temperature and high-speed deep groove ball bearing is proposed. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a low-temperature and high-speed deep groove ball bearing to solve all or one of the problems mentioned in the above background technology.

[0005] Based on the above purpose, the utility model provides a low-temperature and high-speed deep groove ball bearing, including a bearing outer ring, a first ball mounting sleeve and a second ball mounting sleeve are installed inside the bearing outer ring, the first ball mounting sleeve and the second ball mounting sleeve form a sealed snap-fitting docking, a plurality of groups of ball mounting inner rings are arranged on the circumference of the first ball mounting sleeve and the second ball mounting sleeve, the sides of the first ball mounting sleeve and the second ball mounting sleeve are equidistantly and equally connected with oil ring sleeves, a pressing airbag is installed on the top of the pressing airbag, a trigger guide rod is installed on the top of the trigger guide rod, a micro motor is installed on the top of the trigger guide rod, the side of the oil ring sleeve is connected with a surface cooling guide pipe, the side end of the surface cooling guide pipe is installed with a trigger structure, the side end of the trigger structure is connected with a lateral oil film coating end, and the lateral oil film coating end is connected with the oil ring sleeve through a spiral tube sleeved on the inner ring of the trigger structure.

[0006] Optionally, an outer ring sliding arc groove is provided on the inner ring diameter surface of the bearing outer ring, a bearing inner ring is installed inside the bearing outer ring, and an outer arc sliding ring groove is provided on the outer wall circumferential side surface of the bearing inner ring.

[0007] Optionally, the outer ring sliding arc groove and the outer arc sliding ring groove are internally slidingly connected with multiple groups of balls, and the multiple groups of balls are installed in multiple groups of ball installation inner rings.

[0008] Optionally, oil mist ring tubes are installed on the inner wall surfaces of the top and bottom ends of the first ball mounting sleeve and the second ball mounting sleeve, and the oil mist ring tubes are connected to the oil ring sleeves through short tubes. Micro oil mist pinholes are opened on the circumference of the oil mist ring tubes.

[0009] Optionally, a plurality of groups of staggered micro heat dissipation holes are provided on the surface of the outer ring sliding arc groove, and the top hole diameter edges of the plurality of groups of staggered micro heat dissipation holes will not affect the operation of the plurality of groups of balls.

[0010] Optionally, a fixed connection expansion bolt is inserted into the interior of the oil ring sleeve, and the fixed connection expansion bolt is used to fasten the first ball mounting sleeve and the second ball mounting sleeve.

[0011] Optionally, the left and right sides of the bearing outer ring are respectively sealed with a front dustproof heat-conducting cover and a rear dustproof heat-conducting cover.

[0012] Optionally, the front dustproof and heat-conducting cover and the rear dustproof and heat-conducting cover are sealed and connected to the contact grooves of the bearing outer ring and the bearing inner ring through sealing rubber rings.

[0013] Optionally, a flexible brush plate is installed on the inner arc surface of the first ball mounting sleeve and the second ball mounting sleeve, and the flexible brush plate is used to brush the lubricating oil coated on the surfaces of multiple groups of balls.

[0014] Optionally, the multiple groups of balls are made of steel with polished surfaces, and the curvature of the side diameters at both ends of the first ball mounting sleeve and the second ball mounting sleeve are smaller than the central curvature.

[0015] From the above description, it can be seen that the low-temperature and high-speed deep groove ball bearing provided by the utility model automatically controls the supply of lubricating oil to ensure that the entire bearing is always in a good lubrication state during operation. The evenly coated lubricating oil reduces the direct contact between the internal components of the bearing and reduces wear. Effective lubrication reduces bearing wear, extends the service life of the bearing, reduces the problem of grease leakage, and reduces equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A three-dimensional diagram of a low-temperature, high-speed deep groove ball bearing provided by the utility model;

[0018] Figure 2 A schematic diagram of the structure of a low-temperature, high-speed deep groove ball bearing provided by the utility model;

[0019] Figure 3 This is an operational implementation diagram of the low-temperature and high-speed deep groove ball bearing provided by the utility model;

[0020] Figure 4 This is an operational implementation diagram of the low-temperature and high-speed deep groove ball bearing provided by the utility model;

[0021] Figure 5 This is an operational implementation diagram of the low-temperature and high-speed deep groove ball bearing provided by the utility model;

[0022] in:

[0023] 1. Bearing outer ring; 2. Front dustproof heat-conducting cover; 3. Rear dustproof heat-conducting cover; 4. Bearing inner ring; 5. First ball mounting sleeve; 6. Ball mounting inner ring; 7. Micro heat dissipation holes; 8. Fixed connection expansion bolt; 9. Outer arc sliding ring groove; 10. Outer ring sliding arc groove; 11. Second ball mounting sleeve; 12. Ball; 13. Oil mist ring tube; 14. Micro motor; 15. Trigger guide rod; 16. Suppression airbag; 17. Oil ring sleeve; 18. Surface cooling guide tube; 19. Trigger structure; 20. Horizontal oil film coating end; 22. Flexible brush plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be the common meanings understood by people with ordinary skills in the field to which the disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Embodiment 1, as Figure 1-5As shown, the utility model provides a low-temperature high-speed deep groove ball bearing, which includes a bearing outer ring 1, a first ball mounting sleeve 5 and a second ball mounting sleeve 11 are installed inside the bearing outer ring 1, and the first ball mounting sleeve 5 and the second ball mounting sleeve 11 form a sealed engagement. Multiple groups of ball mounting inner rings 6 are arranged on the circumference of the first ball mounting sleeve 5 and the second ball mounting sleeve 11, and oil ring sleeves 17 are inserted and connected at equal intervals on the sides of the first ball mounting sleeve 5 and the second ball mounting sleeve 11. A pressing airbag 16 is installed on the top of the oil ring sleeve 17, a trigger guide rod 15 is installed on the top of the pressing airbag 16, a micro motor 14 is installed on the top of the trigger guide rod 15, the side of the oil ring sleeve 17 is connected with a cooling guide pipe 18, a trigger structure 19 is installed on the side end of the cooling guide pipe 18, the side end of the trigger structure 19 is connected with a lateral oil film coating end 20, the lateral oil film coating end 20 is connected with the oil ring sleeve 17 through a spiral tube sleeved on the inner ring of the trigger structure 19, the bearing outer ring 1 is used to carry and guide the inner ring and the ball 12, the first ball mounting sleeve 5 and the second ball mounting sleeve 11 are used to mount the ball 12 to form a rolling element of the bearing.

[0027] The ball mounting inner ring 6 is used to carry the ball 12, the oil ring sleeve 17 is used to store lubricating oil, and the lubricating oil is supplied through the pressing air bag 16 on the top of the oil ring sleeve 17, and the trigger guide rod 15 is used to trigger the control mechanism of lubricating oil supply. The micro motor 14 is used to drive the action of the trigger guide rod 15, and the surface cooling guide pipe 18 is used to transport lubricating oil to the spiral tube of the inner ring of the trigger structure 19. The trigger structure 19 is used to form a connecting rod telescopic structure to control the fine adjustment of the forward and backward distance of the lateral oil film coating end 20, and the lateral oil film coating end 20 is used to evenly coat the lubricating oil on the working surface of the ball 12. When lubrication is needed, the micro motor 14 is started, and the trigger guide rod 15 moves under the drive of the micro motor 14, so that the pressing airbag 16 is deformed by the trigger guide rod 15, squeezing the internal lubricating oil, and then the lubricating oil is transported to the spiral tube of the inner ring of the trigger structure 19 through the surface cooling guide pipe 18, and then transported to the lateral oil film coating end 20, and evenly coated on the working surface of the ball 12. By automatically controlling the supply of lubricating oil, it is ensured that the entire bearing is always in a good lubrication state during operation. The evenly coated lubricating oil reduces the direct contact between the internal components of the bearing, reduces wear, and effective lubrication reduces bearing wear and extends the service life of the bearing.

[0028] In some possible embodiments, the inner ring diameter surface of the bearing outer ring 1 is provided with an outer ring sliding arc groove 10, the bearing inner ring 4 is installed inside the bearing outer ring 1, the outer wall circumferential surface of the bearing inner ring 4 is provided with an outer arc sliding ring groove 9, and the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9 are slidably matched. The relative movement between the inner and outer rings of the bearing is smooth, and the effective transmission of radial and axial loads is achieved through the rolling of the balls 12 between the inner and outer rings.

[0029] In some possible embodiments, the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9 are internally slidingly connected with multiple groups of balls 12, and the multiple groups of balls 12 are all installed in the multiple groups of ball mounting inner rings 6. The balls 12 roll between the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9 to reduce direct contact between the inner and outer rings.

[0030] In some possible embodiments, an oil mist annular tube 13 is installed on the inner wall surfaces of both sides of the top and bottom ends of the first ball mounting sleeve 5 and the second ball mounting sleeve 11, and the oil mist annular tube 13 is connected to the oil ring sleeve 17 through a short tube. Micro oil mist pinholes are opened on the circumference of the oil mist annular tube 13, and the ball 12 is installed between the first ball mounting sleeve 5 and the second ball mounting sleeve 11, and the oil mist annular tube 13 is installed on the inner wall surfaces of both sides of the top and bottom ends of the first ball mounting sleeve 5 and the second ball mounting sleeve 11, so that the oil mist annular tube 13 is connected to the oil ring sleeve 17 through the short tube. When lubrication is needed, the lubricating oil in the oil ring sleeve 17 flows into the oil mist ring tube 13 through the short tube, and then the lubricating oil is sprayed out in the form of fine mist through the micro oil mist pinhole, evenly covering the space between the ball 12 and the first ball mounting sleeve 5 and the second ball mounting sleeve 11. The cooperation between the oil mist ring tube 13 and the micro oil mist pinhole effectively realizes the uniform distribution of the lubricating oil, improves the lubrication efficiency, and the lubricating oil in the form of fine mist can better cover the contact surface between the ball 12 and the first ball mounting sleeve 5 and the second ball mounting sleeve 11, thereby reducing wear.

[0031] In some possible embodiments, multiple groups of staggered micro heat dissipation holes 7 are provided on the surface of the outer ring sliding arc groove 10, and the top hole diameter of the multiple groups of staggered micro heat dissipation holes 7 will not affect the operation of the multiple groups of balls 12. When the bearing is subjected to radial or axial loads, the balls 12 roll between the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9, so that the heat generated by friction inside the bearing is dissipated through the micro heat dissipation holes 7, and the top hole diameter of the micro heat dissipation holes 7 is designed to be small enough not to affect the rolling of the balls 12.

[0032] In some possible embodiments, a fixed connection expansion bolt 8 is inserted into the interior of the oil ring sleeve 17, and the fixed connection expansion bolt 8 is used to fasten the first ball mounting sleeve 5 and the second ball mounting sleeve 11. The fixed connection expansion bolt 8 ensures that the first ball mounting sleeve 5 and the second ball mounting sleeve 11 are firmly fixed inside the bearing outer ring 1, thereby improving the overall stability of the bearing.

[0033] In some possible embodiments, the left and right sides of the bearing outer ring 1 are respectively sealed with a front dustproof heat conductive cover 2 and a rear dustproof heat conductive cover 3. The front dustproof heat conductive cover 2 and the rear dustproof heat conductive cover 3 are respectively sealed and connected to the left and right sides of the bearing outer ring 1 to prevent dust and impurities from entering the interior of the bearing and provide heat dissipation function.

[0034] In some possible embodiments, the front dustproof heat conductive cover 2 and the rear dustproof heat conductive cover 3 are sealed and connected with the contact grooves of the bearing outer ring 1 and the bearing inner ring 4 through sealing rings, and the sealing rings are installed in the contact grooves of the front dustproof heat conductive cover 2 and the rear dustproof heat conductive cover 3 and the bearing outer ring 1 and the bearing inner ring 4 to provide a reliable sealing effect.

[0035] In some possible embodiments, a flexible brush plate 22 is installed on the inner arc surface of the first ball mounting sleeve 5 and the second ball mounting sleeve 11. The flexible brush plate 22 is used to brush the lubricating oil coated on the surfaces of multiple groups of balls 12. When the lubricating oil covers the surface of the balls 12, the rotation of the balls 12 is simultaneously utilized to make the flexible brush plate 22 contact with the balls 12 to brush the lubricating oil flat, thereby ensuring that the surface of the balls 12 is evenly covered with the lubricating oil.

[0036] In some possible embodiments, multiple groups of balls 12 are made of steel with polished surfaces. The curvature of the edge diameters at both ends of the first ball mounting sleeve 5 and the second ball mounting sleeve 11 is smaller than the central curvature, thereby ensuring a good fit between the balls 12 and the first ball mounting sleeve 5 and the second ball mounting sleeve 11, improving the lubrication effect of the bearings, reducing wear, and extending the service life.

[0037] Working principle: multiple groups of balls 12 are installed in multiple groups of ball mounting inner rings 6, flexible brush plates 22 are installed on the inner arc ring surfaces of the first ball mounting sleeve 5 and the second ball mounting sleeve 11, the bearing inner ring 4 is installed inside the bearing outer ring 1, and the balls 12 are located between the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9. The front dustproof heat conductive cover 2 and the rear dustproof heat conductive cover 3 are sealed and connected with the contact grooves of the bearing outer ring 1 and the bearing inner ring 4 through sealing rubber rings, and the oil mist ring pipe 13 is installed on the inner wall surfaces of both sides of the top and bottom ends of the first ball mounting sleeve 5 and the second ball mounting sleeve 11. The oil mist ring pipe 13 is connected to the oil ring sleeve 17 through a short pipe, and micro oil mist pinholes are opened on the surrounding side of the oil mist ring pipe 13. When lubrication is needed, the micro motor 14 is started, and the trigger guide rod 15 moves under the drive of the micro motor 14, so that the pressing airbag 16 is deformed by the trigger guide rod 15, squeezing the lubricating oil inside, and then the lubricating oil is transported to the spiral tube of the inner ring of the trigger structure 19 through the surface cooling guide pipe 18, and then transported to the transverse oil film coating end 20, and evenly coated on the working surface of the ball 12. By automatically controlling the supply of lubricating oil, it is ensured that the entire bearing is always in a good lubrication state during operation. The evenly coated lubricating oil reduces the direct contact between the internal components of the bearing, reduces wear, and effective lubrication reduces the wear of the bearing and extends the service life of the bearing. At the same time, the lubricating oil in the oil ring sleeve 17 flows into the oil mist ring pipe 13 through the short pipe, so that the lubricating oil is sprayed out in the form of fine mist through the micro oil mist pinhole, evenly covering the surface of the ball 12, and the synchronous flexible brush plate 22 contacts the ball 12. Brush the lubricating oil flat to ensure that the surface of the ball 12 is evenly covered with lubricating oil. When the bearing is subjected to radial or axial load, the ball 12 rolls between the outer ring sliding arc groove 10 and the outer arc sliding ring groove 9. The lubricating oil evenly covering the surface of the ball 12 can effectively reduce the friction between the inner and outer rings and reduce wear. The curvature of the edge diameter at both ends of the first ball mounting sleeve 5 and the second ball mounting sleeve 11 is smaller than the central curvature, ensuring a good fit between the ball 12 and the first ball mounting sleeve 5 and the second ball mounting sleeve 11. The sealing effect provided by the front dustproof and heat-conducting cover 2 and the rear dustproof and heat-conducting cover 3 prevents external dust and impurities from entering the interior of the bearing. The sealing rubber ring ensures the sealing performance inside the bearing to prevent lubricating oil leakage.

[0038] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the present invention as above, which are not provided in detail for the sake of simplicity.

[0039] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-temperature, high-speed deep groove ball bearing, comprising a bearing outer ring (1), characterized in that: A first ball mounting sleeve (5) and a second ball mounting sleeve (11) are installed inside the bearing outer ring (1), the first ball mounting sleeve (5) and the second ball mounting sleeve (11) are sealed and butted, a plurality of groups of ball mounting inner rings (6) are arranged around the first ball mounting sleeve (5) and the second ball mounting sleeve (11), oil ring sleeves (17) are inserted into the sides of the first ball mounting sleeve (5) and the second ball mounting sleeve (11) at equal intervals, and a pressing air bag (17) is installed on the top of the oil ring sleeve (17). 6), a trigger guide rod (15) is installed on the top of the pressing airbag (16), a micro motor (14) is installed on the top of the trigger guide rod (15), a side of the oil ring sleeve (17) is connected to a surface cooling guide pipe (18), a trigger structure (19) is installed on the side end of the surface cooling guide pipe (18), a side end of the trigger structure (19) is connected to a lateral oil film coating end (20), and the lateral oil film coating end (20) is connected to the oil ring sleeve (17) through a spiral tube sleeved on the inner ring of the trigger structure (19).

2. The low-temperature and high-speed deep groove ball bearing according to claim 1, characterized in that: An outer ring sliding arc groove (10) is provided on the inner ring diameter surface of the bearing outer ring (1), a bearing inner ring (4) is installed inside the bearing outer ring (1), and an outer arc sliding ring groove (9) is provided on the outer wall circumferential side surface of the bearing inner ring (4).

3. The low-temperature and high-speed deep groove ball bearing according to claim 2, characterized in that: The outer ring sliding arc groove (10) and the outer arc sliding ring groove (9) are internally slidingly connected with multiple groups of balls (12), and the multiple groups of balls (12) are all installed in multiple groups of ball installation inner rings (6).

4. The low-temperature and high-speed deep groove ball bearing according to claim 1, characterized in that: Oil mist annular tubes (13) are installed on the inner wall surfaces of both sides of the top and bottom ends of the first ball mounting sleeve (5) and the second ball mounting sleeve (11); the oil mist annular tubes (13) are connected to the oil ring sleeves (17) via short tubes; and micro oil mist pinholes are provided on the circumference of the oil mist annular tubes (13).

5. The low-temperature and high-speed deep groove ball bearing according to claim 2, characterized in that: A plurality of groups of staggered micro heat dissipation holes (7) are provided on the surface of the outer ring sliding arc groove (10), and the top hole diameter edges of the plurality of groups of staggered micro heat dissipation holes (7) will not affect the operation of the plurality of groups of balls (12).

6. The low-temperature and high-speed deep groove ball bearing according to claim 1, characterized in that: A fixed connection expansion bolt (8) is inserted into the interior of the oil ring sleeve (17), and the fixed connection expansion bolt (8) is used to fasten the first ball mounting sleeve (5) and the second ball mounting sleeve (11).

7. The low-temperature and high-speed deep groove ball bearing according to claim 1, characterized in that: The left and right sides of the bearing outer ring (1) are respectively sealed with a front dustproof heat-conducting cover (2) and a rear dustproof heat-conducting cover (3).

8. The low-temperature and high-speed deep groove ball bearing according to claim 7, characterized in that: The front dustproof heat-conducting cover (2) and the rear dustproof heat-conducting cover (3) are sealed and connected to the contact grooves of the bearing outer ring (1) and the bearing inner ring (4) via sealing rubber rings.

9. The low-temperature and high-speed deep groove ball bearing according to claim 1, characterized in that: Flexible brush plates (22) are installed on the inner arc surfaces of the first ball mounting sleeve (5) and the second ball mounting sleeve (11), and the flexible brush plates (22) are used to brush the lubricating oil coated on the surfaces of the multiple groups of balls (12) flat.

10. The low temperature and high speed deep groove ball bearing according to claim 3, characterized in that: The plurality of groups of balls (12) are made of steel and have a polished surface. The curvature of the side diameters at both ends of the first ball mounting sleeve (5) and the second ball mounting sleeve (11) is smaller than the central curvature.

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