CN219809268U - Novel pinch roller bearing - Google Patents

Abstract

The utility model provides a novel pinch roller bearing, which comprises a fixed sleeve and a rotating shaft which is arranged in the fixed sleeve in a penetrating way and is coaxially arranged with the fixed sleeve, wherein an inner raceway is formed on the inner wall of the fixed sleeve, an outer raceway corresponding to the inner raceway is formed on the outer wall of the rotating shaft, a rolling body is arranged between the inner raceway and the outer raceway, a sealing groove is formed at the left end of the fixed sleeve, a sealing ring is embedded in the sealing groove, and an end cover is arranged at the right end of the fixed sleeve; according to the utility model, the outer roller path is arranged on the outer wall of the rotating shaft, the inner roller path is arranged on the inner wall of the fixed sleeve, and the rolling bodies are arranged between the inner roller path and the outer roller path, so that the structure of the traditional bearing is simplified, the arrangement of the inner ring and the outer ring is eliminated, and meanwhile, the effect of enabling the rotating shaft to rotate stably is achieved.

Description

Novel pinch roller bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a novel pinch roller bearing.

Background

The bearing is an important part in mechanical equipment, and has the main functions of supporting a mechanical rotating body, the bearing in the prior art generally consists of an inner ring, an outer ring and rolling bodies arranged between the inner ring and the outer ring, the bearing is arranged between a fixed sleeve and a rotating shaft, the inner ring rotates along with the rotating shaft, and the outer ring is fixed with the fixed sleeve, so that the friction coefficient in the rotating shaft moving process is reduced, the rotating precision is ensured, but the structure of the bearing is slightly complicated, and the space structure of the whole equipment is increased.

Disclosure of Invention

The utility model aims to solve the technical problems that the bearing structure in the prior art is slightly complicated, the space structure of the whole equipment is increased, and the utility model provides a novel pinch roller bearing for solving the problems.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a novel pinch roller bearing, is in including fixed cover, wears to establish in the fixed cover and with the axis of rotation of the coaxial setting of fixed cover, interior raceway has been seted up on the inner wall of fixed cover, set up on the outer wall of axis of rotation with the outer raceway that interior raceway corresponds, interior raceway with be equipped with the rolling element between the outer raceway, the seal groove has been seted up to the left end of fixed cover, the embedding has the cover to establish in the seal groove seal ring on the axis of rotation, the right-hand member of fixed cover is equipped with the end cover.

Further: the middle part of end cover set up with the coaxial screw hole of fixed cover, the circumference of end cover is set up flutedly, the embedding has the retaining ring in the recess, the retaining ring seals the laminating and is in on the inner wall of fixed cover.

Further: the rolling bodies comprise a retainer and balls which are arranged on the retainer in a rolling manner, and the retainer can enable a plurality of balls to be uniformly distributed between the inner roller path and the outer roller path.

Further: the sealing groove is small in diameter outside and large in diameter inside, so that the sealing ring is convenient to clamp and prevent the sealing ring from falling off.

Further: the inner wall of the fixed sleeve is matched with the outer wall of the rotating shaft to form an annular cavity, the rotating shaft is provided with an oil duct communicated with the annular cavity, the right end of the rotating shaft is provided with an oil cavity communicated with the threaded hole, and the threaded hole is internally provided with a screw which can be screwed into the oil cavity.

The utility model has the beneficial effects that the outer wall of the rotating shaft is provided with the outer raceway, the inner wall of the fixed sleeve is provided with the inner raceway, and the rolling bodies are arranged between the inner raceway and the outer raceway, so that the structure of the traditional bearing is simplified, the arrangement of the inner ring and the outer ring is canceled, and the rotating shaft can rotate stably; through seal groove, sealing ring, retaining ring, the sealed effect between fixed cover and the axis of rotation has been increased in the setting of recess, reduces the coefficient of friction of ball in the roll process through screw hole, oil pocket, oil duct, annular chamber, prevents the ball drunkenness, prolongs the life of bearing.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a front view of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a schematic structural view of the retaining sleeve;

fig. 4 is a schematic structural view of the rotating shaft.

In the figure, 1, a fixed sleeve, 2, a rotating shaft, 3, an inner rolling path, 4, an outer rolling path, 5, rolling bodies (5 a, a retainer; 5b, balls), 6, a sealing groove, 7, a sealing ring, 8, an end cover, 9, a threaded hole, 10, a groove, 11, a retainer ring, 12, an annular cavity, 13, an oil duct, 14 and an oil cavity.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present utility model in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present utility model.

As shown in fig. 1 to 4, the utility model provides a novel pinch roller bearing, which comprises a fixed sleeve 1 and a rotating shaft 2 which is arranged in the fixed sleeve 1 in a penetrating way and is coaxial with the fixed sleeve 1, wherein an inner rolling path 3 is arranged on the inner wall of the fixed sleeve 1, an outer rolling path 4 corresponding to the inner rolling path 3 is arranged on the outer wall of the rotating shaft 2, rolling bodies 5 are arranged between the inner rolling path 3 and the outer rolling path 4, a sealing groove 6 is arranged at the left end of the fixed sleeve 1, a sealing ring 7 sleeved on the rotating shaft 2 is embedded in the sealing groove 6, and an end cover 8 is arranged at the right end of the fixed sleeve 1.

The bearing in the prior art generally comprises an inner ring, an outer ring and rolling bodies 5 arranged between the inner ring and the outer ring, the bearing is arranged between a fixed sleeve 1 and a rotating shaft 2, the inner ring rotates along with the rotating shaft 2 in general, the outer ring is fixed with the fixed sleeve 1, so that the rotating shaft 2 rotates more stably, an outer roller path 4 is arranged on the outer wall of the rotating shaft 2, an inner roller path 3 is arranged on the inner wall of the fixed sleeve 1, and the rolling bodies 5 are arranged between the inner roller path 3 and the outer roller path 4, so that the structure of the traditional bearing is simplified, the arrangement of the inner ring and the outer ring is canceled, and meanwhile, the rotating shaft 2 can rotate stably.

The middle part of end cover 8 set up with fixed cover 1 coaxial screw hole 9, recess 10 has been seted up to the circumference of end cover 8, the embedding has retaining ring 11 in the recess 10, retaining ring 11 seals the laminating and is in on the inner wall of fixed cover 1. Staff can add lubricating oil in this equipment through screw hole 9 to through screw etc. screw thread seal, retaining ring 11 can improve the sealing performance between fixed cover 1 and the axis of rotation 2, prevents that lubricating oil in the cavity from leaking the polluted environment.

The rolling elements 5 comprise a cage 5a and balls 5b rollingly arranged on the cage 5a, the cage 5a being such that a number of balls 5b are evenly distributed between the inner raceway 3 and the outer raceway 4. The cage 5a can maintain the distance between the balls 5b, prevent contact between the balls 5b, reduce friction, and uniformly distribute the balls 5b, thereby uniformly distributing the load, and in addition, can guide the balls 5b in a no-load region, improve rolling conditions in the bearing, and prevent damaging sliding.

The sealing groove 6 is small in diameter outside and large in diameter inside, so that the sealing ring 7 is convenient to clamp, and the sealing ring 7 is prevented from falling off. The diameter of the sealing groove 6 is small outside and large inside, so that the sealing ring 7 of the rotating shaft 2 cannot fall off in the high-speed rotating process, and the sealing effect is affected.

The inner wall of the fixed sleeve 1 is matched with the outer wall of the rotating shaft 2 to form an annular cavity 12, the rotating shaft 2 is provided with an oil duct 13 communicated with the annular cavity 12, the right end of the rotating shaft 2 is provided with an oil cavity 14 communicated with the threaded hole 9, and the threaded hole 9 is internally provided with a screw which can be screwed into the oil cavity 14. Lubricating oil injected from the threaded hole 9 passes through the oil cavity 14, passes through the oil duct 13 and then enters the annular cavity 12, so that the friction coefficient is reduced in the rolling process of the ball 5b, the rotation precision is ensured, and the service life of the bearing is prolonged. When the screw is too long, the front end of the screw can be provided with an oil cavity 14 communicated with the threaded hole 9 along the right end of the rotating shaft 2 to enter the threaded hole 9 when the screw passes through the threaded hole 9 on the end cover 8 in the bearing installation, so that the phenomenon that the screw is blocked when the screw is propped against the end face bearing of the rotating shaft 2 when the common bearing does not have the oil cavity 14 is effectively avoided.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (5)

1. The utility model provides a novel pinch roller bearing, is in including fixed cover (1), wearing to establish in fixed cover (1) and with rotation axis (2) of fixed cover (1) coaxial setting, its characterized in that: an inner rolling way (3) is arranged on the inner wall of the fixed sleeve (1), an outer rolling way (4) corresponding to the inner rolling way (3) is arranged on the outer wall of the rotating shaft (2), rolling bodies (5) are arranged between the inner rolling way (3) and the outer rolling way (4), a sealing groove (6) is arranged at the left end of the fixed sleeve (1), a sealing ring (7) sleeved on the rotating shaft (2) is embedded in the sealing groove (6), and an end cover (8) is arranged at the right end of the fixed sleeve (1).

2. The novel pinch roller bearing of claim 1, wherein: the middle part of end cover (8) set up with screw hole (9) coaxial of fixed cover (1), recess (10) are seted up to the circumference of end cover (8), embedded retaining ring (11) in recess (10), retaining ring (11) seal laminating is in on the inner wall of fixed cover (1).

3. The novel pinch roller bearing of claim 1, wherein: the rolling bodies (5) comprise a retainer (5 a) and balls (5 b) which are arranged on the retainer (5 a) in a rolling manner, and the retainer (5 a) can enable a plurality of balls (5 b) to be uniformly distributed between the inner roller path (3) and the outer roller path (4).

4. The novel pinch roller bearing of claim 1, wherein: the sealing groove (6) is small in diameter outside and large in diameter inside, so that the sealing ring (7) is convenient to clamp, and the sealing ring (7) is prevented from falling off.

5. The novel pinch roller bearing of claim 2, wherein: the fixed sleeve is characterized in that an annular cavity (12) is formed between the inner wall of the fixed sleeve (1) and the outer wall of the rotating shaft (2), an oil duct (13) communicated with the annular cavity (12) is arranged on the rotating shaft (2), an oil cavity (14) communicated with the threaded hole (9) is formed in the right end of the rotating shaft (2), and a screw capable of being screwed into the oil cavity (14) is arranged in the threaded hole (9).