High-temperature-resistant deep groove ball bearing

Abstract

The utility model discloses a high-temperature resistant deep groove ball bearing, which relates to the technical field of deep groove ball bearings, and comprises an inner ring, the middle part of the inner ring is provided with a raceway, the inside of the raceway is in rolling fit with an assembling component, and the assembling component comprises a sub-frame body, a pocket groove, a steel ball, a boss, a connecting arm and an L-shaped groove. According to the high-temperature-resistant deep groove ball bearing provided by the invention, compared with the prior art that a cavity between the sealing ring and the ball is filled with lubricating grease, and then volatilization is accelerated in a high-temperature environment, an existing filling cavity is replaced with the asphalt felt, and the asphalt felt can effectively slow down the volatilization speed of the lubricating grease in the high-temperature environment; the steel balls in the retainer are in full contact with the linoleum on the two sides in the rolling state, the long-time lubricating effect is kept, the service life of the deep groove ball bearing in the high-temperature environment is prolonged, meanwhile, oil can be easily supplemented into the linoleum through the liquid supplementing opening, and the rubber plug is in interference fit with the liquid supplementing opening through self deformation to achieve the anti-leakage effect.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearings, in particular to a high temperature resistant deep groove ball bearing. Background Art

[0002] A ball bearing, such as a deep groove ball bearing, typically comprises an inner ring, an outer ring (also collectively referred to as a "bearing ring") and balls (also referred to as "rolling elements") disposed between the inner ring and the outer ring, wherein the balls are usually accommodated in a cage, and grooves are machined in the bearing ring, and the grooves form raceways that are symmetrically distributed in the axial direction, so that the raceways are symmetrically distributed with the axial midpoint of the inner ring and the outer ring as the center.

[0003] Generally, the operating temperature range of deep groove ball bearings is -30℃ to 120℃. The reason is that under high temperature conditions, the grease in the bearing will evaporate faster. If it is not replenished in time, the wear of the deep groove ball bearing in high temperature environment will be aggravated.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a high temperature resistant deep groove ball bearing is proposed. Utility Model Content

[0005] The utility model aims to provide a high temperature resistant deep groove ball bearing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes an inner ring, a raceway is opened in the middle of the inner ring, an assembly component is rollingly matched inside the raceway, the assembly component includes a sub-frame, a pocket groove, a steel ball, a boss, a connecting arm and an L-shaped groove, the sub-frame bodies on both sides are provided with pocket grooves in an array on opposite surfaces, and steel balls are arranged in the pocket grooves on the opposite sides, bosses are connected at both ends of the arc surface of the pocket groove, a connecting arm is fixedly connected to the inner side of the boss on one side, and an L-shaped groove is opened on the inner side of the boss on the other side.

[0007] Furthermore, the sub-frame bodies on both sides are combined into a complete retaining frame, and the pocket grooves of the sub-frame bodies on both sides that are opposite to each other are combined into pocket holes for accommodating steel balls.

[0008] Furthermore, the sub-frame body on one side is plugged into and matched with an L-shaped groove at a relative position of the sub-frame body on the other side through a connecting arm, and the connecting arm made of elastic material and the L-shaped groove form a non-detachable snap-on structure.

[0009] Furthermore, the inner ring is nested inside the outer ring, and the gap between the outer ring and the inner ring is in rolling cooperation with the steel balls.

[0010] Furthermore, a fluid replenishing assembly is provided on both sides of the junction of the outer ring and the inner ring, and the fluid replenishing assembly includes a dust cover and linoleum. The dust cover is a hollow annular structure, and linoleum is attached to the inner side of the dust cover.

[0011] Furthermore, the fluid replenishing component also includes a sealing ring, the outer part of the tarpaulin is covered with a sealing ring, and the sealing ring is sealed at the junction of the outer ring and the inner ring.

[0012] Furthermore, the fluid replenishment component also includes a fluid replenishment port and a rubber plug. A fluid replenishment port is opened in the middle of the dust cover, and a rubber plug is interference-fitted on the outer side of the fluid replenishment port.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When in use, compared with the prior art that fills the cavity between the sealing ring and the ball with lubricating grease, which leads to accelerated volatilization in a high temperature environment, the utility model replaces the existing filling cavity with the provision of oil felt, which can effectively slow down the volatilization rate of the grease in a high temperature environment, and the steel balls in the retaining frame are in full contact with the oil felt on both sides in a rolling state, thereby maintaining a long-term lubrication effect and extending the service life of the deep groove ball bearing in a high temperature environment. At the same time, the oil can be easily added to the oil felt through the refilling port, and the rubber plug has an anti-leakage effect through its own deformation and interference fit with the refilling port.

[0015] 2. When the utility model is in use, the retaining frame of the present application is composed of two matching sub-frame bodies. The sub-frame body on one side is plug-fitted with the L-shaped groove at the relative position of the sub-frame body on the other side through a connecting arm to form a complete retaining frame, and the pocket grooves relative to the sub-frame bodies on both sides are merged into pocket holes for accommodating steel balls, making the assembly of steel balls easier. At the same time, the connecting arm made of elastic material and the L-shaped groove form a non-detachable snap-on structure, making the combined retaining frame structure more stable and not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0018] Figure 3 This is a schematic diagram of the structure of the fluid replenishment component of the utility model.

[0019] In the figure: 1. inner ring; 2. raceway; 3. assembly component; 301. sub-frame; 302. pocket groove; 303. steel ball; 304. boss; 305. connecting arm; 306. L-shaped groove; 4. outer ring; 5. liquid filling component; 501. dust cover; 502. linoleum; 503. sealing ring; 504. liquid filling port; 505. rubber plug. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1 to Figure 2 As shown, a high temperature resistant deep groove ball bearing comprises an inner ring 1, a raceway 2 is provided in the middle of the inner ring 1, an assembly component 3 is rollingly matched inside the raceway 2, the assembly component 3 comprises a sub-frame 301, a pocket groove 302, a steel ball 303, a boss 304, a connecting arm 305 and an L-shaped groove 306, the sub-frames 301 on both sides are provided with pocket grooves 302 on opposite surfaces, and the steel balls 303 are arranged in the pocket grooves 302 on opposite sides, the bosses 304 are connected at both ends of the arc surface of the pocket groove 302, and the connecting arm 305 is fixedly connected to the inner side of the boss 304 on one side, and the L-shaped groove 306 is provided on the inner side of the boss 304 on the other side, the sub-frames 301 on both sides are combined into a complete retaining frame, and the pocket grooves 302 on both sides of the sub-frames 301 are combined into pocket holes for accommodating the steel balls 303, The sub-frame body 301 on one side is plugged with the L-shaped groove 306 at the relative position of the sub-frame body 301 on the other side through the connecting arm 305, and the connecting arm 305 and the L-shaped groove 306 of the elastic material constitute a non-detachable buckle structure. The retaining frame of the present application is composed of two matching sub-frame bodies 301, and the sub-frame body 301 on one side is plugged with the L-shaped groove 306 at the relative position of the sub-frame body 301 on the other side through the connecting arm 305 to form a complete retaining frame, and the pocket grooves 302 relative to the sub-frame bodies 301 on both sides are merged into pocket holes for accommodating the steel balls 303, making the assembly of the steel balls 303 easier, and at the same time, the connecting arm 305 and the L-shaped groove 306 of the elastic material constitute a non-detachable buckle structure, making the combined retaining frame structure more stable and not easy to loosen;

[0022] like Figures 1 to 3As shown, the inner ring 1 is nested in the outer ring 4, and the gap between the outer ring 4 and the inner ring 1 is in rolling cooperation with the steel ball 303. Both sides of the junction of the outer ring 4 and the inner ring 1 are provided with a liquid replenishing component 5, and the liquid replenishing component 5 includes a dust cover 501 and a felt 502. The dust cover 501 is a hollow annular structure, and the felt 502 is attached to the inner side of the dust cover 501. The liquid replenishing component 5 also includes a sealing ring 503. The outer side of the felt 502 is provided with a sealing ring 503, and the sealing ring 503 is sealed at the junction of the outer ring 4 and the inner ring 1. The liquid replenishing component 5 also includes a liquid replenishing port 504 and a rubber plug 505. A liquid replenishing port 504 is provided in the middle of the dust cover 501, and the outer side of the liquid replenishing port 504 has an interference fit. Compared with the prior art of filling the cavity between the sealing ring and the ball with lubricating grease, which leads to accelerated volatilization in a high temperature environment, the rubber plug 505 in the present application replaces the prior filling cavity with the provision of the felt 502. The felt 502 can effectively slow down the volatilization rate of the grease in a high temperature environment, and the steel ball 303 in the retaining frame is in full contact with the felt 502 on both sides in a rolling state, thereby maintaining a long-term lubrication effect and extending the service life of the deep groove ball bearing in a high temperature environment. At the same time, the oil can be easily added to the felt 502 through the refilling port 504. The rubber plug 505 has an anti-leakage effect through its own deformation and interference fit with the refilling port 504, which is more convenient to use.

[0023] Working principle: When using this high-temperature resistant deep groove ball bearing, on the one hand, the retaining frame of the present application is composed of two matching sub-frame bodies 301, and the sub-frame body 301 on one side is plugged into and matched with the L-shaped groove 306 at the relative position of the sub-frame body 301 on the other side through the connecting arm 305 to form a complete retaining frame, and the pocket grooves 302 relative to the sub-frame bodies 301 on both sides are merged into pocket holes for accommodating the steel balls 303, making the assembly of the steel balls 303 easier, and at the same time, the connecting arm 305 and the L-shaped groove 306 made of elastic material form a non-detachable snap-on structure, making the combined retaining frame structure more stable and not easy to loosen. On the other hand, Compared with the existing technology of filling lubricating grease in the cavity between the sealing ring and the ball, which leads to accelerated volatilization in a high temperature environment, the present application replaces the existing filling cavity with the provision of felt 502. The felt 502 can effectively slow down the volatilization rate of the grease in a high temperature environment, and the steel ball 303 in the retaining frame is in full contact with the felt 502 on both sides in a rolling state, thereby maintaining a long-term lubrication effect and extending the service life of the deep groove ball bearing in a high temperature environment. At the same time, the oil can be easily added to the felt 502 through the refill port 504, and the rubber plug 505 has an anti-leakage effect through its own deformation and interference fit with the refill port 504.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A high temperature resistant deep groove ball bearing, comprising an inner ring (1), characterized in that: A raceway (2) is provided in the middle of the inner ring (1), and an assembly component (3) is rollingly matched inside the raceway (2), and the assembly component (3) includes a sub-frame (301), a pocket groove (302), a steel ball (303), a boss (304), a connecting arm (305) and an L-shaped groove (306). The sub-frame (301) on both sides has pocket grooves (302) arranged in an array on opposite surfaces, and steel balls (303) are arranged in the pocket grooves (302) on the opposite sides. Bosses (304) are connected at both ends of the arc surface of the pocket groove (302), and a connecting arm (305) is fixedly connected to the inner side of the boss (304) on one side, and an L-shaped groove (306) is provided on the inner side of the boss (304) on the other side.

2. A high temperature resistant deep groove ball bearing according to claim 1, characterized in that: The sub-frame bodies (301) on both sides are combined into a complete retaining frame, and the pocket grooves (302) opposite to each other on the sub-frame bodies (301) on both sides are combined into pocket holes for accommodating steel balls (303).

3. A high temperature resistant deep groove ball bearing according to claim 1, characterized in that: The sub-frame body (301) on one side is plugged into and matched with an L-shaped groove (306) at a relative position of the sub-frame body (301) on the other side through a connecting arm (305), and the connecting arm (305) and the L-shaped groove (306) made of elastic material form a non-detachable snap-fit ​​structure.

4. A high temperature resistant deep groove ball bearing according to claim 1, characterized in that: The inner ring (1) is nested inside the outer ring (4), and the gap between the outer ring (4) and the inner ring (1) is in rolling fit with the steel ball (303).

5. A high temperature resistant deep groove ball bearing according to claim 4, characterized in that: A fluid replenishing assembly (5) is provided on both sides of the junction between the outer ring (4) and the inner ring (1), and the fluid replenishing assembly (5) comprises a dust cover (501) and a felt (502), wherein the dust cover (501) is a hollow annular structure, and the felt (502) is attached to the inner side of the dust cover (501).

6. A high temperature resistant deep groove ball bearing according to claim 5, characterized in that: The fluid replenishing component (5) further comprises a sealing ring (503). The sealing ring (503) is sleeved on the outside of the felt (502), and the sealing ring (503) is sealed at the junction of the outer ring (4) and the inner ring (1).

7. A high temperature resistant deep groove ball bearing according to claim 6, characterized in that: The liquid replenishing assembly (5) further comprises a liquid replenishing port (504) and a rubber plug (505); a liquid replenishing port (504) is provided in the middle of the dust cover (501), and a rubber plug (505) is interference-fitted on the outer side of the liquid replenishing port (504).

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