CN221097216U - Sealed bearing convenient to oiling - Google Patents

Abstract

The utility model relates to a sealing bearing convenient for oiling, which relates to the technical field of bearing accessories and comprises an inner ring and an outer ring, wherein a rolling body for sliding connection is arranged between the inner ring and the outer ring, a retainer is sleeved on the outer side of the rolling body, a dust cover is arranged on the outer ring, a rotating tongue lock is arranged on the dust cover, the outer ring is clamped with the dust cover through the rotating tongue lock, a cover body is embedded on the dust cover, and a liquid leakage hole for oiling is formed in the dust cover. According to the utility model, the lubricating oil is added into the bearing without disassembling the dust cover, so that dust, sand and other foreign matters can be prevented from entering the bearing, the internal environment of the bearing is kept clean, the bearing can work in the poor environment, the waste caused by scrapping the dust cover due to disassembling the dust cover is avoided, and the production cost is reduced, so that the bearing has strong applicability.

Description

Sealed bearing convenient to oiling

Technical Field

The utility model relates to the technical field of bearing accessories, and particularly discloses a sealing bearing convenient for oiling.

Background

The sealed bearing is a bearing with a metal cover, namely a dust cover, or a rubber ring with a framework, embedded into a groove of an outer ring of the bearing, and a smaller gap is formed between the metal cover and the inner ring or is contacted with the inner ring to form a closed structure; the double-sided sealed bearing not only can store lubricating oil, but also can prevent dust and other foreign matters from entering the bearing, and keep the rolling bodies to rotate in a clean environment; such bearings are often used in environments where they are relatively poor, and where maintenance and service are inconvenient. The dust cover is a part punched by pure metal plates and is generally fixed on the outer ring of the bearing, and has proper clearance with the inner diameter and the outer diameter of the inner ring, and the dust cover can not contact with the retainer in the bearing. At present, the common dust cover is in a curled edge type dust cover structure, the dust cover is pressed after the bearing is filled with lubricating oil, and the dust cover is deformed and fixed in a tooth mouth of the outer ring by using a die; in general, the dust cover cannot be removed after being pressed and is scrapped after being removed.

The authorized bulletin number is: the utility model patent of CN218817657U discloses a deep groove ball bearing with a dust cover, which comprises an inner ring, an outer ring, a rolling body and the dust cover, wherein the dust cover comprises the inner ring made of hard materials and the outer ring made of elastic materials, an embedded groove is formed in the inner wall of the outer ring, the outer edge of the inner ring is in interference fit with the embedded groove, a fixing groove is formed in the inner wall of the outer ring, the fixing groove is in interference fit with the outer edge of the outer ring, a groove is formed in the surface, facing away from the rolling body, of the outer ring, and the groove, the inner ring and the outer ring are concentric.

In the disclosed patent technology, the dust cover is still installed in a press-fit mode, so that the dust cover cannot be taken down at will after installation; in the use process of the bearing, leakage of lubricating oil often occurs and the bearing is in a high-temperature, high-speed or long-time running state, and at this time, in order to prevent friction and abrasion in the bearing, prevent overheating of the bearing, prolong the service life of the bearing and the like, the lubricating oil needs to be added in the bearing frequently; however, the presence of the dust cap affects the user's direct lubrication of the bearing; secondly, through the mode filling lubricating oil of dismantling the shield, will lead to the rejection of shield, cause extravagant, and then improve manufacturing cost.

Disclosure of utility model

Aiming at the problem that the conventional sealed bearing is inconvenient to add lubricating oil, the utility model provides the sealed bearing convenient for oiling.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a sealed bearing convenient to oiling, includes inner circle and outer lane, be provided with the rolling element that is used for sliding connection between inner circle and the outer lane, the outer side cover of rolling element is equipped with the holder, the shield is installed to the outer lane, be provided with the tongue lock of joint between shield and the outer lane, the shield is last to inlay to be equipped with the lid, set up the weeping hole that is used for the oiling on the shield.

Preferably, the inner ring and the outer ring are provided with inner grooves which are convenient for the rolling bodies to slide, and the inner grooves are semicircular grooves.

Preferably, the retainer comprises a plurality of ring frames, the ring frames are fixedly connected through bolts, the ring frames are of ring-shaped structures, and the rolling bodies are arranged in the ring frames in a rolling mode.

Preferably, a plurality of rolling bodies are arranged, and the rolling bodies are uniformly arranged in the retainer.

Preferably, the dust cover is provided with a ring-shaped groove, and a plurality of liquid leakage holes and screw holes are formed in the ring-shaped groove.

Preferably, screw holes for the bolts to pass through are formed in the annular groove and the cover body, and a sealing ring is fixedly arranged at the outer edge of the cover body.

Preferably, the tongue lock comprises a lock tongue, a lock body and a lock tongue rod, wherein the lock tongue is fixedly connected with the lock tongue rod, the lock tongue rod is rotationally connected with the lock body, the lock tongue is in clamping connection with the outer ring and does not contact with the inner ring and the retainer, and the lock body is fixed inside the outer edge of the dust cover.

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

1. According to the utility model, the dust cover is provided with the liquid leakage hole, so that lubricating oil can be added when the bearing is provided with the dust cover, and dust is prevented from entering the bearing when the dust cover is disassembled for oiling, so that the internal environment of the bearing is prevented from being polluted;

2. According to the utility model, the rotary tongue lock is arranged on the dust cover, so that the dust cover is convenient to take down, and the dust cover is prevented from being scrapped, so that the utilization rate of the dust cover is improved, and the waste is avoided;

3. According to the utility model, the dust cover is additionally arranged on the bearing, so that dust, sand and other foreign matters can be prevented from entering the bearing, the rolling bodies are kept to rotate in a clean environment, the bearing is beneficial to being used in occasions with poor environment and inconvenient maintenance and maintenance, and the influence of the environment on the working efficiency of the bearing is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;

FIG. 1 is a schematic view of the overall device installation of the present utility model;

FIG. 2 is a schematic view of the overall device structure of the present utility model;

FIG. 3 is a schematic view of the rolling elements and cage of the present utility model;

FIG. 4 is a schematic view of the dust cap and cap assembly of the present utility model;

FIG. 5 is a schematic view of a dust cap according to the present utility model;

FIG. 6 is a schematic view of the back structure of the dust cap of the present utility model

FIG. 7 is a schematic view of a cover structure of the present utility model;

FIG. 8 is a schematic view of the outer and inner races and rolling element mounting of the present utility model;

FIG. 9 is a schematic view of a latch lock according to the present utility model;

In the figure: 1. the inner ring, the outer ring, the rolling bodies, the retainer, the ring frame, the dust cover, the cover body, the liquid leakage hole, the rotary tongue lock, the lock tongue, the lock body, the lock tongue, the seal ring, the ring groove, the inner groove and the screw hole.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

The embodiment provides a sealed bearing convenient for oiling, as shown in figures 1-9, the sealed bearing comprises an inner ring 1 and an outer ring 2, wherein the inner ring 1 and the outer ring 2 are circular, all bottom edges of the inner ring 1 and the outer ring 2 are chamfered, the width of the outer ring 2 is larger than that of the inner ring 1, and the inner ring 1 is contained in the outer ring 2; an inner groove 11 is formed in the outer surface of the inner ring 1 and the inner surface of the outer ring 2, the inner groove 11 is a semicircular groove, and the inner groove 11 is connected with the rolling body 3 in a sliding manner; the rolling elements 3 are arranged between the inner grooves 11 of the inner ring 1 and the outer ring 2, the rolling elements 3 can slide between the inner grooves 11, the rolling elements 3 are spherical, one quarter of the surface area of the rolling elements 3 is attached to the surface of the inner grooves 11, the diameter of the rolling elements 3 is larger than the width of the inner grooves 11, the radius of the rolling elements 3 is larger than the depth of the inner grooves 11, the rolling elements 3 are sleeved with the retainer 4, the rolling elements 3 are fixed by the retainer 4, and the rolling elements 3 can roll in the retainer 4; the retainer 4 is arranged between the outer ring 2 and the inner ring 1 along with the rolling bodies 3, the retainer 4 comprises two groups of ring frames 401, the ring frames 401 are ring-shaped, each ring frame 401 comprises a semicircular ring-shaped structure, screw holes 12 are formed between every two adjacent semicircular ring-shaped structures, the two groups of ring frames 401 are fixedly spliced through bolts, the semicircular ring-shaped structures on the two groups of ring frames 401 can be spliced and combined into a circular ring-shaped structure, the diameter of the circular ring-shaped structure is larger than or equal to that of the rolling bodies 3, the rolling bodies 3 are arranged in the circular ring-shaped structure, the rolling bodies 3 can roll in the circular ring-shaped structure, the rolling bodies 3 are fixed in the retainer 4 through the circular ring-shaped structure, and the number of the rolling bodies 3 is equal to that of the circular ring-shaped structures.

As shown in fig. 1-2, the two surfaces of the bearing are both provided with a dust cover 5 and a cover body 6, the dust cover 5 is in a ring shape, the height of the dust cover 5 is smaller than or equal to the width of the outer ring 2, which is different from the inner ring 1, the width of the dust cover 5 is equal to the difference between the outer diameter of the inner ring 1 and the inner diameter of the outer ring 2, and a gap is reserved between the dust cover 5 and the inner ring 1 on the two surfaces of the bearing and is not contacted with the inner ring 1, so that the dust cover 5 does not influence the rotation work of the inner ring 1; as shown in fig. 5-6, two tongue locks 8 are disposed on the dust cap 5, the tongue locks 8 include a tongue 801, a lock body 802 and a tongue rod 803, the lock body 802 is fixed inside the outer edge of the dust cap 5, the tongue 801 may be clamped with the outer ring 2 and does not contact the inner ring 1 and the retainer 4, the tongue rod 803 is fixedly connected with the tongue 801, the tongue rod 803 is rotatably connected with the lock body 802 via a return spring inside the lock body 802, the tongue locks 8 rotate the tongue 801 by screwing the tongue rod 803, so as to achieve the effect of clamping or separating the dust cap from the outer ring, the initial position of the tongue 801 is the edge of the dust cap 5 extending into the outer ring, at this time, the dust cap 5 is clamped with the outer ring 2, when the tongue 801 moves into the outer edge of the dust cap 5 due to screwing the tongue rod 803, the dust cap 5 may be removed from the outer ring 2, and when a user stops screwing the tongue rod 803, the tongue 801 may automatically return to the initial position, and the tongue locks 8 are in the prior art.

As shown in fig. 5, the dust cover 5 is provided with a ring-shaped groove 10, the width and the depth of the ring-shaped groove 10 are smaller than those of the dust cover 5, the bottom surface of the ring-shaped groove 10 is provided with a plurality of circular liquid leakage holes 7, the liquid leakage holes 7 are uniformly distributed on the bottom surface of the ring-shaped groove 10, the liquid leakage holes 7 are used for filling lubricating oil, the lubricating oil can be filled into the bearing through the liquid leakage holes 7, and the bottom surface of the ring-shaped groove 10 is provided with four screw holes 12.

As shown in fig. 4-7, the dust cover 5 is fixedly connected with a cover body 6, the cover body 6 is embedded with the annular groove 10, the cover body 6 is provided with four screw holes 12, the positions of the screw holes 12 are distributed on the four bisectors of the cover body 6, the positions of the screw holes 12 of the cover body 6 correspond to the positions of the screw holes 12 in the annular groove 10, and bolts can penetrate through the screw holes 12 of the cover body 6 and then penetrate out through the screw holes 12 of the annular groove 10, so that the cover body 6 and the dust cover 5 are fixedly connected through bolts, and the cover body 6 is prevented from falling off due to vibration generated by a bearing during working; the inner bottom edge and the outer bottom edge of the cover body 6 are both provided with sealing rings 9, the sealing rings 9 are annular, grooves are formed in the sealing rings 9, the sealing rings 9 can be embedded with the bottom edge of the cover body 6 through the grooves, the sealing rings 9 are fixedly connected with the cover body 6 through strong glue, and the sealing rings 9 are made of wear-resistant and oil-resistant rubber.

The working principle of the utility model is as follows:

Before use, a user screws the two lock tongue rods 803 to enable the two lock tongues 801 to move into the outer edge of the dust cover 5, then the user places the dust cover 5 between the inner ring 1 and the outer ring 2, at the moment, the user stops screwing the lock tongue rods 803, and the lock tongue 801 automatically returns to the initial position to extend into the inner edge of the outer ring 2, so that the dust cover 5 is clamped with the outer ring 2; then, a user screws the bolts through the screw holes of the cover body 6 and the dust cover 5, and the cover body 6 is fixed on the dust cover 5, so that both sides of the bearing are sealed.

When the bearing is used, when lubricating oil is required to be added into the bearing, a user takes down four bolts for fixing the cover body 6 one by one, takes out the cover body 6 in the annular groove 10, separates the cover body 6 from the dust cover 5, and exposes the liquid leakage hole 7 in the annular groove 10; the user can add lubricating oil between the rolling element 3, the inner ring 1 and the outer ring 2 through the liquid leakage hole 7, when a large amount of lubricating oil is required to be added or a certain part in the bearing is required to be cleaned, the user can screw the two lock tongue rods 803, so that the lock tongue 801 moves into the outer edge of the dust cover 803, and then the dust cover 5 is taken down, so that lubricating oil is added into the bearing or cleaning is performed on parts inside the bearing, and dust and sand are prevented from affecting the bearing work.

After the anti-dust device is used, a user can screw the two lock tongue rods 803 again, so that the lock tongue 801 moves into the outer edge of the dust cover 803, the dust cover 5 is placed between the outer ring 2 and the inner ring 1, then the user stops screwing the lock tongue rods 803, the lock tongue 801 automatically returns, and the dust cover 5 is clamped with the outer ring 2; secondly, the user places lid 6 in annular groove 10, makes lid 6 and four screw on the shield 5 corresponding, and the user is with the screw of bolt through lid 6 in the screw of shield 5 of screw-in, with lid 6 and shield 5 fixed connection, and sealing washer 9 of lid 6 bottom can be with annular groove 10 bottom shutoff, avoids lubricating oil to flow out through weeping hole 7, avoids the dust entering bearing inside simultaneously.

Compared with the prior art, the utility model has the advantages that on one hand, the dust, sand and other foreign matters are prevented from entering the bearing by adding the lubricating oil into the bearing on the premise of not disassembling the dust cover 5, the inside environment of the bearing is kept clean, the bearing is beneficial to working in the occasion with poor environment, on the other hand, the waste caused by scrapping the dust cover 5 due to disassembling the dust cover 5 is avoided, and the production cost is reduced, so that the utility model has very wide application prospect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides a sealed bearing convenient to oiling, includes inner circle (1) and outer lane (2), its characterized in that, be provided with rolling element (3) that are used for sliding connection between inner circle (1) and outer lane (2), rolling element (3) outside cover is equipped with holder (4), shield (5) are installed to outer lane (2), be provided with tongue lock (8) of joint between shield (5) and outer lane (2), inlay on shield (5) and be equipped with lid (6), set up on shield (5) and be used for the weeping hole (7) of oiling.

2. The sealed bearing convenient for oiling according to claim 1, wherein the inner ring (1) and the outer ring (2) are provided with inner grooves (11) which are convenient for the rolling bodies (3) to slide, and the inner grooves (11) are semicircular grooves.

3. The sealed bearing convenient for oiling according to claim 1, wherein the retainer (4) comprises a plurality of ring frames (401), the ring frames (401) are fixedly connected through bolts, the ring frames (401) are of ring-shaped structures, and the rolling bodies (3) are arranged in the ring frames (401) in a rolling mode.

4. A sealed bearing for facilitating oil filling according to claim 3, characterized in that the rolling elements (3) are provided in plurality, and the rolling elements (3) are uniformly mounted in the cage (4).

5. The sealed bearing convenient for oiling according to claim 1, wherein the dust cover (5) is provided with a ring-shaped groove (10), and a plurality of weeping holes (7) and screw holes (12) are formed in the ring-shaped groove (10).

6. The sealed bearing convenient for oiling according to claim 5, wherein the annular groove (10) and the cover body (6) are provided with screw holes (12) for bolts to pass through, and a sealing ring (9) is fixedly arranged at the outer edge of the cover body (6).

7. The sealed bearing convenient for oiling according to claim 1, characterized in that the rotary tongue lock (8) comprises a lock tongue (801), a lock body (802) and a lock tongue rod (803), the lock tongue (801) is fixedly connected with the lock tongue rod (803), the lock tongue rod (803) is rotatably connected with the lock body (802), the lock tongue (801) is clamped with the outer ring (2) and does not contact the inner ring (1) and the retainer (4), and the lock body (802) is fixed inside the outer edge of the dust cover (5).