Small deep groove ball bearing with mute function

Abstract

The utility model relates to the technical field of bearings, and discloses a small deep groove ball bearing with a mute function, the bottom end of a bent groove is provided with a plurality of through holes, a rebound assembly is arranged between the inside of each circular groove and the side end of a sealing assembly, the inner side of each rubber dust cover is fixedly connected with sound insulation cotton, and the rubber dust covers are fixedly connected with the sound insulation cotton. The sound insulation cotton is additionally arranged on the inner side of the rubber dust cover, so that the sound insulation effect of the rubber dust cover can be improved, noise generated by rotation in the bearing is greatly reduced, and a good mute effect is achieved; then the sealing assembly is used in cooperation with the rebound assembly to cover and seal the notch of the bent groove, at the moment, lubricating oil in the bent groove enters the bearing bit by bit through a plurality of small through holes, when the inner ring and the balls rotate, the lubricating oil flowing down from the through holes can be driven to be evenly dispersed, a rubber dustproof cover does not need to be disassembled, and the bearing is convenient to use. And the lubricating maintenance of the bearing is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, specifically, relate to a small -size deep groove ball bearing with mute function. BACKGROUND

[0002] The bearing is mainly composed of three important parts: inner ring, ball and outer ring. The inner ring is a ring-shaped component that cooperates with the shaft and rotates with the shaft. The ball is the rolling element in the bearing, which can roll between the inner ring and the outer ring, supporting and transmitting load, reducing friction and sliding. The outer ring is another ring-shaped component of the bearing, located outside the ball, cooperating with the inner ring and the ball, providing external support and fixation of the bearing. In order to prevent adjacent balls from contacting each other and hindering rolling motion, a retainer is usually equipped in the bearing. The retainer ensures uniform spacing between the balls, allowing them to roll smoothly.

[0003] The existing small -size deep groove ball bearing realizes dustproof and noise reduction in the bearing by installing rubber dust cover between the inner ring and the outer ring. However, the bearing needs regular lubrication maintenance, so good lubrication can reduce friction and wear, thereby reducing noise.

[0004] However, due to the blocking of the rubber protective cover, the rubber dust cover needs to be removed every time the lubricating oil is added, which makes the lubrication and maintenance process of the bearing more inconvenient and increases the time consumption of the bearing maintenance. Therefore, a small -size deep groove ball bearing with mute function is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a small -size deep groove ball bearing with mute function, which solves the problem of inconvenient lubrication and maintenance process of the bearing and increases the time consumption of the bearing maintenance due to the blocking of the rubber protective cover when adding lubricating oil to the bearing in the prior art.

[0006] The utility model provides the following technical scheme: a small -size deep groove ball bearing with mute function, comprising an inner ring and an outer ring, a plurality of balls are installed between the inner ring and the outer ring, a retainer is installed between the outer ends of the plurality of balls, a curved groove is formed in the side end of the outer ring, a plurality of through holes are formed in the bottom end of the curved groove, a sealing assembly is arranged in the side end of the curved groove, a plurality of circular grooves are formed in the side end of the outer ring, a rebound assembly is arranged between the inside of each circular groove and the side end of the sealing assembly, two groups of rubber dust covers are installed between the side end of the inner ring and the side end of the outer ring, and soundproof cotton is fixedly connected to the inner side of each rubber dust cover.

[0007] As the preferred technical scheme of the above, the sealing assembly comprises a sealing cover, a sealing plug is fixedly connected to the side end of the sealing cover, a plug plate is fixedly connected to the side end of the sealing cover, and a pull rod is fixedly connected to the side end of the sealing cover.

[0008] As the preferred technical scheme of the above, the side end of the sealing cover is fixedly connected with a side plate, and mutually attractive magnets are fixedly connected between the side end of the side plate and the side end of the outer ring.

[0009] As the preferred technical scheme of the above, the side end of the outer ring is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the plug plate is inserted into the sealing groove.

[0010] As the preferred technical scheme of the above, the rebound assembly comprises a stretch plate, the stretch plate is fixedly connected to the side end of the sealing cover, the side end of the stretch plate is fixedly connected with a round rod, the round rod is inserted into the inner part of the circular groove from the outer side end of the outer ring, the side end of the round rod is fixedly connected with a circular plate, and the outer end of the round rod is sleeved with a spring.

[0011] As the preferred technical scheme of the above, one end of the spring is fixedly connected to the side end of the circular plate, and the other end of the spring is fixedly connected to the inner side end of the circular groove.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The rubber dustproof cover arranged between the inner ring and the outer ring can prevent dust from entering the ball bearing, the sound insulation effect of the rubber dustproof cover is improved by adding sound insulation cotton on the inner side of the rubber dustproof cover, the noise generated by the rotation of the bearing is greatly reduced, and good mute effect is realized, the groove opening of the bending groove is exposed after the sealing assembly is opened, then the lubricating oil is injected into the bending groove, then the sealing assembly cooperates with the rebound assembly to cover and seal the groove opening of the bending groove, so that the lubricating oil in the bending groove enters the bearing through the plurality of small through holes, the lubricating oil flowing down from the through hole is uniformly dispersed when the inner ring and the ball rotate, the ball in the bearing is conveniently lubricated, the rubber dustproof cover does not need to be disassembled, the lubrication and maintenance of the bearing are more convenient, and the time consumption of the maintenance of the bearing is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of a small deep groove ball bearing with mute function;

[0015] Figure 2 It is a sectional structure schematic view of a small deep groove ball bearing with mute function;

[0016] Figure 3 It is Figure 2A local enlarged structure schematic view of the middle part;

[0017] Figure 4 A sectional view of a small deep groove ball bearing with mute function;

[0018] Figure 5 A sectional view of a small deep groove ball bearing with mute function; Figure 4 A local enlarged structure schematic view of the middle part B.

[0019] In the figure: 1, inner ring; 101, outer ring; 102, ball; 103, retainer; 104, bent groove; 105, through hole; 106, sealing groove; 107, round groove; 2, rubber dust cover; 201, soundproof cotton; 3, sealing assembly; 301, sealing cover; 302, sealing plug; 303, insertion plate; 304, sealing ring; 305, side plate; 306, magnet; 307, pull rod; 4, rebound assembly; 401, extension plate; 402, round rod; 403, round plate; 404, spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0021] As Figures 1-5As shown, the utility model provides a technical scheme: a small deep groove ball bearing with mute function, including inner ring 1 and outer ring 101, install several ball bearings 102 between inner ring 1 and outer ring 101, install the outer end between several ball bearings 102 with retainer 103, the side end of outer ring 101 is provided with bent slot 104, the bottom end of bent slot 104 is provided with several through -hole 105, the side end of bent slot 104 is equipped with sealing assembly 3, the side end of outer ring 101 is provided with several circular grooves 107, the inside of each circular groove 107 to the side end of sealing assembly 3 is equipped with rebound assembly 4, the side end of inner ring 1 and the side end of outer ring 101 are installed with two groups of rubber dustproof cover 2, the inner side of each rubber dustproof cover 2 is fixedly connected with sound insulation cotton 201, through the rubber dustproof cover 2 installed between inner ring 1 and outer ring 101, can avoid dust into ball bearing 102, simultaneously through the addition of sound insulation cotton 201 in the inner side of rubber dustproof cover 2, can improve the sound insulation effect of rubber dustproof cover 2, greatly reduce the noise generated by the rotation inside bearing, realize good mute effect, through the opening of sealing assembly 3, the slot of bent slot 104 is exposed, then through the injection of lubricating oil into bent slot 104, then sealing assembly 3 cooperates the use of rebound assembly 4 to cover and seal the slot of bent slot 104, avoid the leakage of lubricating oil, the lubricating oil in bent slot 104 enters the bearing little by little through several small through -holes 105 at this time, when inner ring 1 and ball bearing 102 rotate, can drive the lubricating oil flowing down from through -hole 105 to spread evenly, facilitate the lubrication of ball bearing 102 in bearing, without disassembling rubber dustproof cover 2, make the lubrication maintenance of bearing more convenient, reduce the time consumption of bearing maintenance.

[0022] As an embodiment in the present embodiment, as shown in the figure, Figure 3 As shown, sealing assembly 3 includes sealing cover 301, sealing cover 301 is fixedly connected with sealing plug 302 at the side end, sealing cover 301 is fixedly connected with plug plate 303 at the side end, sealing cover 301 is fixedly connected with pull rod 307 at the side end, sealing cover 301 is fixedly connected with side plate 305 at the side end, the side end of side plate 305 and the side end of outer ring 101 are fixedly connected with mutually attractive magnet 306, the side end of outer ring 101 is provided with sealing groove 106, sealing groove 106 is installed with sealing ring 304 in the inside, plug plate 303 is inserted into sealing groove 106, in the implementation, sealing plug 302 is inserted into bent slot 104, and the slot of bent slot 104 is sealed, plug plate 303 is inserted into sealing groove 106, and the sealing effect of the slot of bent slot 104 is further improved by the cooperation of sealing ring 304.

[0023] As an embodiment in the present embodiment, as shown in the figure, Figure 4 And Figure 5As shown, the rebound assembly 4 comprises a stretch plate 401 fixedly connected to the side end of the sealing cover 301, the side end of the stretch plate 401 is fixedly connected with a round rod 402, the round rod 402 is inserted into the inner part of the circular groove 107 from the outer side end of the outer ring 101, the side end of the round rod 402 is fixedly connected with a round plate 403, the outer end of the round rod 402 is sleeved with a spring 404, one end of the spring 404 is fixedly connected to the side end of the round plate 403, the other end of the spring 404 is fixedly connected to the inner side end of the circular groove 107. In the implementation, when it is necessary to add lubricating oil into the bearing regularly, the pull rod 307 is pulled to separate the two magnets 306, at this time, the sealing plug 302 at the side end of the sealing cover 301 is separated from the notch of the bent groove 104, at this time, the insert plate 303 is separated from the sealing groove 106, the sealing cover 301 drives the side plate 305 to move the round rod 402 and the round plate 403 in the circular groove 107, the round plate 403 can press and shrink the spring 404 in the moving process, at this time, the sealing cover 301 is opened to expose the notch of the bent groove 104, then the lubricating oil is injected into the bent groove 104, then the pull rod 307 is loosened, the spring 404 automatically rebounds against the round plate 403 to reset the round rod 402 and the sealing cover 301, at this time, the sealing plug 302 can be automatically inserted into the notch of the bent groove 104, and the two magnets 306 are attracted to each other, at this time, the sealing cover 301 can stably seal the notch of the bent groove 104, because the rebounding force of the spring 404 can tightly cover the side end of the notch of the bent groove 104, and the attraction of the two groups of magnets 306 further improves the covering stability of the sealing cover 301 to the notch of the bent groove 104, and also facilitates the opening or closing of the pull rod 307 and the sealing cover 301 at any time.

[0024] Working principle: through the installation of rubber dust cover 2 between the inner ring 1 and the outer ring 101, the dust can be prevented from entering the ball 102, at the same time, through the addition of sound insulation cotton 201 on the inner side of the rubber dust cover 2, the sound insulation effect of the rubber dust cover 2 can be improved, the noise generated by the rotation inside the bearing is greatly reduced, and good mute effect is realized, at the same time, when it is necessary to add lubricating oil inside the bearing periodically, by pulling the pull rod 307, the two magnetic stones 306 are separated, at this time, the sealing plug 302 on the side end of the sealing cover 301 is separated from the notch of the bent groove 104, at this time, the plug plate 303 is separated from the sealing groove 106, the sealing cover 301 drives the side plate 305, so that the side plate 305 drives the round rod 402 and the round plate 403 to move in the circular groove 107, the round plate 403 can press the spring 404 to shrink in the moving process, at this time, the sealing cover 301 is opened, the notch of the bent groove 104 is exposed, then the lubricating oil is injected into the bent groove 104, then the pull rod 307 is loosened, the spring 404 automatically rebounds against the round plate 403, drives the round rod 402 and the sealing cover 301 to reset, at this time, the sealing plug 302 can be automatically inserted into the notch of the bent groove 104, and the two magnetic stones 306 are attracted to each other, at this time, the sealing cover 301 can stably seal the notch of the bent groove 104, because the rebounding force of the spring 404 can tightly cover the side end of the notch of the bent groove 104, and the attraction of the two groups of magnetic stones 306 further improves the covering stability of the sealing cover 301 to the notch of the bent groove 104, at the same time, it is convenient to open or close the pull rod 307 and the sealing cover 301 at any time, at this time, the lubricating oil in the bent groove 104 enters the bearing little by little through the plurality of small through holes 105, when the inner ring 1 and the ball 102 rotate, the lubricating oil flowing down from the through hole 105 can be uniformly dispersed, the ball 102 in the bearing is lubricated, the rubber dust cover 2 does not need to be disassembled, the lubrication and maintenance of the bearing are more convenient, and the time consumption of the bearing maintenance is reduced.

[0025] The above examples are only used to illustrate the technical scheme of the utility model, but not limit it.

Claims

1. A small deep groove ball bearing with silent operation, comprising an inner ring (1) and an outer ring (101), wherein a plurality of balls (102) are mounted between the inner ring (1) and the outer ring (101), and a cage (103) is mounted between the outer ends of the plurality of balls (102), characterized in that: The outer ring (101) has a curved groove (104) on its side end, and a number of through holes (105) are provided at the bottom end of the curved groove (104). A sealing component (3) is provided at the side end of the curved groove (104). A number of circular grooves (107) are provided at the side end of the outer ring (101). A spring-loaded component (4) is provided between the inside of each circular groove (107) and the side end of the sealing component (3). Two sets of rubber dust covers (2) are installed between the side end of the inner ring (1) and the side end of the outer ring (101). A sound insulation cotton (201) is fixedly connected to the inside of each rubber dust cover (2).

2. A miniature deep groove ball bearing with silent operation according to claim 1, characterized in that: The sealing assembly (3) includes a sealing cover (301), a sealing plug (302) is fixedly connected to the side end of the sealing cover (301), an insert plate (303) is fixedly connected to the side end of the sealing cover (301), and a pull rod (307) is fixedly connected to the side end of the sealing cover (301).

3. A miniature deep groove ball bearing with silent operation according to claim 2, characterized in that: The sealing cap (301) is fixedly connected to a side plate (305), and magnets (306) that attract each other are fixedly connected between the side end of the side plate (305) and the side end of the outer ring (101).

4. A miniature deep groove ball bearing with silent operation according to claim 3, characterized in that: A sealing groove (106) is provided on the side end of the outer ring (101), and a sealing ring (304) is installed inside the sealing groove (106). The insert plate (303) is inserted into the sealing groove (106).

5. A miniature deep groove ball bearing with silent operation according to claim 2, characterized in that: The rebound assembly (4) includes an extension plate (401), which is fixedly connected to the side end of the sealing cover (301). A round rod (402) is fixedly connected to the side end of the extension plate (401). The round rod (402) is inserted from the outer side end of the outer ring (101) into the inside of the round groove (107). A round plate (403) is fixedly connected to the side end of the round rod (402). A spring (404) is sleeved on the outer end of the round rod (402).

6. A miniature deep groove ball bearing with silent operation according to claim 5, characterized in that: One end of the spring (404) is fixedly connected to the side end of the circular plate (403), and the other end of the spring (404) is fixedly connected to the inner side end of the circular groove (107).

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