CN210371641U - Bidirectional limiting bearing - Google Patents

Abstract

The application provides a two-way restriction bearing, belongs to bearing technical field. The two-way limiting bearing comprises a first ring body, a second ring body, a third ring body, a rolling element and a bearing frame, wherein the first ring body, the second ring body and the third ring body are coaxially arranged, the first ring body is connected with the second ring body, the outer diameter of one side, connected with the second ring body, of the first ring body is smaller than the outer diameter of one side, far away from the second ring body, of the first ring body and the outer diameter of the second ring body, so that the surface, opposite to the second ring body, of the first ring body, the surface, opposite to the first ring body, of the second ring body and the outer surface, connected with the second ring body, of the first ring body form an accommodating space, the rolling element and the bearing frame are accommodated in the accommodating space, the rolling element is in contact with the surface, opposite to the second ring body, of the rolling element and the second ring body, and the surface, opposite to the first ring body. The bidirectional limiting bearing can limit axial runout and radial runout simultaneously, simplifies the whole structure and has good limiting effect.

Description

Bidirectional limiting bearing

Technical Field

The utility model relates to a bearing technical field particularly, relates to a two-way restriction bearing.

Background

In the prior art, a plurality of bearings are required to be additionally arranged for limiting the radial run-out and the axial run-out of a shaft. For example, radial bearings need to be additionally installed for radial run-out limitation of a shaft, axial bearings need to be additionally installed for axial run-out limitation of the shaft, the number of additionally installed bearings is large, the structure is complex, and the limitation effect is not good

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way restriction bearing to solve to a certain extent among the prior art to the radial runout of axle and the restriction of axial runout need install a plurality of bearings additional, bearing is in large quantity and the effect is not good, and the complicated problem of overall structure. The utility model provides a two-way restriction bearing can restrict the radial runout of counter shaft and axial runout simultaneously, has reduced the bearing quantity that needs install additional, and overall structure is simple, and the restriction effect is better.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a two-way restriction bearing, two-way restriction bearing includes first ring body, second ring body, third ring body, rolling member and bearing bracket, first ring body, the second ring body with the coaxial setting of third ring body, first ring body with the second ring body coupling, the external diameter of one side of first ring body with the second ring body coupling is less than the external diameter of one side of keeping away from of first ring body with the external diameter of second ring body, so that the surface that first ring body and the second ring body are relative, the surface that the second ring body and the first ring body are relative and the surface that first ring body and the second ring body coupling of first ring body form accommodation space, the rolling member with the bearing bracket hold in the accommodation space, the rolling member with the first ring body with the surface contact that the second ring body is relative, the rolling part is in contact with the surface of the second ring body opposite to the first ring body, and the rolling part is in contact with the third ring body.

As an optimized technical solution of the utility model, the external diameter of first ring body with the external diameter of second ring body equals.

As a preferred technical scheme of the utility model, at least a part of third ring body is located first ring body with second ring body coupling forms in the accommodation space, the third ring body with U type groove is injectd to accommodation space, the rolling member with the bearing frame hold in U type inslot.

As a preferred technical solution of the present invention, the bearing bracket includes a first bearing ring, a second bearing ring and a third bearing ring, the first bearing ring and the third bearing ring are disposed along an axial interval of the second bearing ring, the second bearing ring is connected to the first bearing ring and the third bearing ring, an outer diameter of the first bearing ring and the third bearing ring is greater than an outer diameter of the second bearing ring, a first side of the first bearing ring contacts with the first ring body, a second side of the first bearing ring contacts with the third ring body, a first side of the third bearing ring contacts with the second ring body, a second side of the third bearing ring contacts with the third ring body, the first side of the second bearing ring contacts with an outer surface of a portion of the first ring body connected with the second ring body, the second side of the second bearing ring contacts with the third ring body, the rolling elements are distributed over the first bearing ring, the second bearing ring and the third bearing ring.

As a preferred technical solution of the present invention, the first bearing ring is the same as the third bearing ring in structure and size.

As a preferred technical solution of the present invention, the inner diameter of the first bearing ring and the second bearing ring is the same as the inner diameter of the third bearing ring.

As a preferred technical scheme of the utility model, the second ring body with first ring body detachably connects.

As an optimized technical scheme of the utility model, the second ring body with first ring body threaded connection.

As a preferred technical scheme of the utility model, the third ring body is used for with the support is fixed.

The beneficial effects of the utility model include:

through setting up first ring body, second ring body for the rolling member is located the accommodation space that first ring body, second ring body enclose. The rolling member contacts with first ring body, second ring body simultaneously, has restricted the axial runout of axle, and the rolling member contacts with the third ring body, has restricted the runout of axle for the bearing in this application is better to the runout of axle and the restriction effect of axial runout. The axial direction and the radial direction can be limited simultaneously by adopting one bearing, and in the prior art, a plurality of bearings are required for limitation, so that the structure is simplified, the structure is simple, and the maintenance is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a bidirectional limiting bearing provided in this embodiment.

Icon: 10-a two-way limit bearing; 20-axis; 110-a first ring body; 120-a second ring; 130-a third ring body; 140-rolling members; 150-a bearing frame; 151-first bearing ring; 152-a second bearing ring; 153-third bearing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper" and "lower" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention.

Further, in the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the prior art, multiple bearings are required for the limitation of radial run-out and axial run-out of the shaft. For example, radial bearings need to be additionally installed for radial runout limitation of a shaft, axial bearings need to be additionally installed for axial runout limitation of the shaft, the number of the additionally installed bearings is large, the structure is complex, and the limitation effect is poor. The applicant finds that the problems existing in the prior art are that the prior art needs to be additionally provided with a plurality of bearings for radial runout and axial runout of a shaft, is complex in structure and has poor limiting effect. In view of the above situation, the applicant has proposed a bidirectional limited bearing based on a great deal of theoretical research and practical operation. The bidirectional limiting bearing has good limiting effect on axial runout and radial runout, and can simplify the whole structure.

Example (b):

referring to fig. 1, the present embodiment provides a bidirectional limiting bearing 10, including a first ring body 110, a second ring body 120, a third ring body 130, a rolling element 140 and a bearing frame 150, where the first ring body 110, the second ring body 120 and the third ring body 130 are coaxially disposed, the first ring body 110 is connected to the second ring body 120, an outer diameter of a side of the first ring body 110 connected to the second ring body 120 is smaller than an outer diameter of a side of the first ring body 110 away from the second ring body 120 and an outer diameter of the second ring body 120, so that a receiving space is formed by a surface of the first ring body 110 opposite to the second ring body 120, a surface of the second ring body 120 opposite to the first ring body 110, and an outer surface of the first ring body 110 connected to the second ring body 120, the rolling element 140 and the bearing frame 150 are received in the receiving space, the rolling element 140 is in contact with the surface of the first ring body 110 opposite to the second ring body 120, the rolling element 140 is in contact with the surface of the second ring body 120 opposite to the first, the rolling member 140 is in contact with the third ring body 130.

It should be noted that during the rotation of the shaft 20, since the shaft 20 is connected to the first ring body 110 and the second ring body 120, the first ring body 110 and the second ring body 120 can follow the shaft 20 to vibrate axially and radially, and if the axial and radial vibrations are not limited by the bidirectional limiting bearing 10, the stability of the whole structure is affected.

By arranging the first ring body 110 and the second ring body 120 and connecting the first ring body 110 and the second ring body 120, the rolling members 140 are positioned in the accommodating space enclosed by the first ring body 110 and the second ring body 120. Rolling member 140 simultaneously with first ring body 110, second ring body 120 contacts, the axial runout of axle 20 has been restricted, rolling member 140 contacts with the part of being connected with second ring body 120 of third ring body 130 and first ring body 110, the runout of axle 20 has been restricted, make two-way restriction bearing 10 in this application better to the runout of axle 20 and the restriction effect of axial runout, and only installed one two-way restriction bearing 10 additional and just can restrict runout and axial runout, compare in adopting a plurality of bearings to restrict respectively runout and axial runout, overall structure is simpler, and the cost is lower.

Further, the outer diameter of the first ring 110 is equal to the outer diameter of the second ring 120.

Further, at least a portion of the third ring member 130 is located in an accommodating space formed by connecting the first ring member 110 and the second ring member 120, the third ring member 130 and the accommodating space define a U-shaped groove, and the rolling member 140 and the bearing frame 150 are accommodated in the U-shaped groove.

Further, the bearing bracket 150 includes a first bearing ring 151, a second bearing ring 152 and a third bearing ring 153, the first bearing ring 151 and the third bearing ring 153 are disposed at an interval along an axial direction of the second bearing ring 152, the second bearing ring 152 connects the first bearing ring 151 and the third bearing ring 153, outer diameters of the first bearing ring 151 and the third bearing ring 153 are larger than an outer diameter of the second bearing ring 152, a first side of the first bearing ring 151 contacts the first ring body 110, a second side of the first bearing ring 151 contacts the third ring body 130, a first side of the third bearing ring 153 contacts the second ring body 120, a second side of the third bearing ring 153 contacts the third ring body 130, a first side of the second bearing ring 152 contacts an outer surface of a portion of the first ring body 110 connected to the second ring body 120, a second side of the second bearing ring 152 contacts the third ring body 130, the rolling members 140 are distributed on the first bearing ring 151, a second bearing ring 153, and a third bearing ring 153, A third bearing ring 153 and a second bearing ring 152.

Further, the first bearing ring 151 and the third bearing ring 153 are identical in structure and size. In some embodiments, the first bearing ring 151 and the third bearing ring 153 may be made of the same material, such as aluminum alloy, steel, etc.

In some embodiments, the first bearing ring 151, the second bearing ring 152, and the third bearing ring 153 may be made of the same material, such as aluminum alloy, steel, etc.

Further, the inner diameters of the first bearing ring 151 and the second bearing ring 152 are the same as the inner diameter of the third bearing ring 153.

Further, the second ring 120 is detachably coupled to the first ring 110.

Further, the second ring body 120 is screw-coupled with the first ring body 110.

Further, a third ring 130 is used to secure the stent.

The bidirectional limiting bearing 10 provided by this embodiment includes a first ring body 110, a second ring body 120, a third ring body 130, a rolling member 140 and a bearing frame 150, the first ring body 110, the second ring body 120 and the third ring body 130 are coaxially disposed, the first ring body is connected to the second ring body, the outer diameter of the side of the first ring body 110 connected to the second ring body 120 is smaller than the outer diameter of the side of the first ring body 110 far from the second ring body 120 and the outer diameter of the second ring body 120, so that the surface of the first ring body 110 opposite to the second ring body 120, the surface of the second ring body 120 opposite to the first ring body 110 and the outer surface of the first ring body 110 connected to the second ring body 120 form an accommodating space, the rolling member 140 and the bearing frame 150 are accommodated in the accommodating space, the rolling member 140 is in contact with the surface of the first ring body 110 opposite to the second ring body 120, the rolling member 140 is in contact with the surface of the second ring body 120 opposite to the first ring body 110, the rolling member 140 is in contact with the third ring body 130. By arranging the first ring body 110 and the second ring body 120, the rolling member 140 is positioned in the accommodating space enclosed by the first ring body 110 and the second ring body 120. The rolling elements 140 are simultaneously in contact with the first ring body 110 and the second ring body 120, so that the axial runout of the shaft 20 is limited, the rolling elements 140 are in contact with the third ring body 130 and the part of the first ring body 110 connected with the second ring body 120, so that the radial runout of the shaft 20 is limited, and the bidirectional limiting bearing 10 in the application has a good limiting effect on the radial runout and the axial runout of the shaft 20. And adopt a two-way restriction bearing 10 just can restrict axial and radial jump simultaneously, in the prior art, need a plurality of bearings to restrict, therefore simplified the structure, simple structure does benefit to the maintenance.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A bidirectional limiting bearing is characterized by comprising a first ring body, a second ring body, a third ring body, a rolling element and a bearing frame, wherein the first ring body, the second ring body and the third ring body are coaxially arranged, the first ring body is connected with the second ring body, the outer diameter of one side, connected with the second ring body, of the first ring body is smaller than the outer diameter of one side, far away from the second ring body, of the first ring body and the outer diameter of the second ring body, so that a containing space is formed by the surface, opposite to the second ring body, of the first ring body, the surface, opposite to the first ring body, of the second ring body and the outer surface, connected with the second ring body, of the first ring body, the rolling element and the bearing frame are contained in the containing space, and the rolling element is in contact with the surface, opposite to the second ring body, of the first ring body, the rolling part is in contact with the surface of the second ring body opposite to the first ring body, and the rolling part is in contact with the third ring body.

2. The bidirectional restraining bearing of claim 1, wherein an outer diameter of said first ring is equal to an outer diameter of said second ring.

3. The bidirectional limiting bearing of claim 2, wherein at least a portion of the third ring is located in the receiving space formed by the connection of the first ring and the second ring, the third ring and the receiving space defining a U-shaped groove, and the rolling element and the bearing bracket are received in the U-shaped groove.

4. The bidirectional limit bearing of claim 3, wherein the bearing holder includes a first bearing ring, a second bearing ring, and a third bearing ring, the first bearing ring and the third bearing ring being disposed at an interval along an axial direction of the second bearing ring, the second bearing ring connecting the first bearing ring and the third bearing ring, an outer diameter of the first bearing ring and the third bearing ring being larger than an outer diameter of the second bearing ring, a first side of the first bearing ring being in contact with the first ring body, a second side of the first bearing ring being in contact with the third ring body, a first side of the third bearing ring being in contact with the second ring body, a second side of the third bearing ring being in contact with the third ring body, the first side of the second bearing ring being in contact with an outer surface of a portion of the first ring body to which the second ring body is connected, the second side of the second bearing ring is in contact with the third ring body, and the rolling elements are distributed on the first bearing ring, the second bearing ring and the third bearing ring.

5. The bidirectional restraining bearing of claim 4, wherein said first bearing ring is identical in construction and size to said third bearing ring.

6. The bidirectional restraining bearing of claim 4, wherein an inner diameter of said first bearing ring and said second bearing ring is the same as an inner diameter of said third bearing ring.

7. The bi-directional restraining bearing of claim 1, wherein said second ring is removably coupled to said first ring.

8. The bidirectional restraining bearing of claim 1, wherein said second ring is threadably coupled to said first ring.

9. The bi-directional limit bearing of claim 1, wherein the third ring is adapted to be secured to an external bracket.

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