CN217761738U - Cylindrical roller bearing with adapter sleeve - Google Patents

Abstract

The utility model belongs to the technical field of the bearing assembly is made, concretely relates to cylindrical roller bearing with tight cover, including inner circle, outer lane, holder and roller, the internal diameter of inner circle is the taper hole, sets up the tight bush of deciding that the outer wall is the conical surface in the taper hole of inner circle internal diameter, tightly decides the tight nut of little terminal surface one side suit of bush, tightly decides the nut and presses on the inner circle terminal surface, and the side surface of tightly deciding the nut carries out the axial with roller end face contaction and to the roller spacing. The utility model discloses an existing inner circle flange function of tight set nut has tight set nut function again, has saved the width of bearing on the axial direction, has satisfied the equipment that has the axial installation requirement and to the restriction of installation space, simple structure, maneuverability is high.

Description

Cylindrical roller bearing with adapter sleeve

Technical Field

The utility model belongs to the technical field of the bearing assembly manufacturing, concretely relates to cylindrical roller bearing with adapter sleeve.

Background

In some large-scale mechanical equipment, need have the cylindrical roller bearing of tight fit sleeve, the bearing hole is the taper hole, conventional structure adds the tight fit sleeve structure of standard for cylindrical roller bearing, the tight fit sleeve of standard is by tight fit bush, tight fit nut, lock washer constitutes, the tight fit nut of this structure tight fit sleeve is in the outside of bearing ring, increase the axial width of whole structure, but partial mechanical equipment structure has the requirement to the axial of bearing installation, conventional cylindrical roller bearing installs the unable installation requirement that satisfies this partial mechanical equipment of structure of tight fit sleeve additional.

Disclosure of Invention

According to the defect that above-mentioned prior art exists, the utility model aims at providing a cylindrical roller bearing with adapter sleeve improves the adapter sleeve structure of bearing, shortens the cylindrical roller bearing's that has adapter sleeve axial width, satisfies restriction axial mechanical equipment's installation requirement.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a cylindrical roller bearing with tight cover, includes inner circle, outer lane, holder and roller, the internal diameter of inner circle is the taper hole, sets up the tight bush that decides that the outer wall is the conical surface in the taper hole of inner circle internal diameter, and tight nut of tight small end face one side suit of bush that decides, tight nut presses on the inner circle terminal surface, and tight nut's side surface and roller end face contact carry out axial spacing to the roller.

Based on the technical scheme, the utility model discloses a cylindrical roller bearing structure with adapter sleeve closes a flange of bearing inner race and adapter sleeve's tight nut as an organic whole for practicing thrift the axial space, and the tight nut also is the bearing inner race retaining ring.

Furthermore, a fastening nut is arranged on one side of the inner ring raceway, an inner ring rib is arranged on the other side of the inner ring raceway, and an annular groove for accommodating the roller is formed by the side surface of the fastening nut, the side surface of the inner ring raceway and the side surface of the inner ring rib.

Furthermore, the large end face of the inner ring is flush with the end face of the roller, the small end face of the fastening bushing extends out of the large end face of the inner ring, the fastening nut is pressed against the large end face of the inner ring, and the edge of the outer ring of the fastening nut is in contact with the end face of the roller.

Further, the locking nut is arranged to be of a locking and self-locking structure.

Furthermore, a plurality of equally-divided openings are formed in the fastening nut along the circumferential direction, and penetrate through the inner wall of the fastening nut along the radial direction.

Furthermore, the radial screw is arranged on the fastening nut along the radial direction and connected to the halving opening.

Further, the fastening nut is connected to the outer wall of the fastening bushing through threads.

Furthermore, the taper of the outer wall conical surface of the fastening bushing is matched with the taper of the inner diameter conical hole of the inner ring.

Further, set up the oil filler point on the tight bush terminal surface, the oil filler point communicates the internal diameter to the inner circle through the oil duct that sets up in tight bush inside.

Further, the inner wall of the fastening bush is a cylindrical surface.

The beneficial effects of the utility model are that: the utility model discloses an existing inner circle flange function of tight set nut has tight set nut function again, has saved the width of bearing on the axial direction, has satisfied the equipment that has the axial installation requirement and to the restriction of installation space, simple structure, maneuverability is high.

Drawings

FIG. 1 is a prior art cylindrical roller bearing arrangement with a adapter sleeve;

FIG. 2 is a cylindrical roller bearing structure with a adapter sleeve according to the present invention;

FIG. 3 is a schematic view of a clinch nut threaded connection without an aliquot opening;

FIG. 4 is a schematic view of a threaded connection of a clinch nut provided with equally spaced openings;

in the figure: 1. the inner ring, 2, the outer ring, 3, the retainer, 4, the rollers, 5, the tightening bush, 6, the tightening nut, 7, the oil injection hole, 8, the radial screw, 9 and the equal division opening.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The structure of a conventional cylindrical roller bearing with a fastening sleeve is shown in the attached drawing 1, the inner diameter of the cylindrical roller bearing with a taper hole is in a standard fastening sleeve structure, the standard fastening sleeve is composed of a fastening bush, a fastening nut and a stop washer, and the axial occupied width H of the structure is the width H of the bearing B with the fastening nut and the width H of the stop washer, and H = B + H.

The utility model discloses a cylindrical roller bearing with adapter sleeve refers to figure 2, including inner circle 1, outer lane 2, holder 3 and roller 4, the internal diameter of inner circle 1 is the taper hole, sets up the outer wall for the conical surface, the inner wall is the tight bush 5 of deciding of cylinder in the taper hole of 1 internal diameter of inner circle, tightly decides little terminal surface one side of bush 5 and tightly decides nut 6 through threaded connection, tightly decides nut 6 and presses on 1 terminal surface of inner circle, tightly decides nut 6's side surface and 4 end face contact of roller and carry out the axial spacingly to roller 4. And a fastening nut 6 is arranged on one side of the inner ring raceway, an inner ring rib is arranged on the other side of the inner ring raceway, and an annular groove for accommodating the roller is formed by the side surface of the fastening nut 6, the side surface of the inner ring raceway and the side surface of the inner ring rib.

In one embodiment, the large end surface of the inner ring 1 is flush with the end surface of the roller 4, the small end surface of the fastening bush 5 extends out of the large end surface of the inner ring 1, the fastening nut 6 is pressed against the large end surface of the inner ring 1, and the edge of the outer ring of the fastening nut 6 is in contact with the end surface of the roller 4.

In one embodiment, the fastening nut 6 is configured as a self-locking and anti-loose structure.

In one embodiment, a plurality of equally-divided openings 9 are circumferentially arranged on the fastening nut 6, and the equally-divided openings 9 radially penetrate through the inner wall of the fastening nut 6.

In one embodiment, the radial screw 8 is radially arranged on the fastening nut 6, and the radial screw 8 is connected to the bisecting opening 9. The radial screw 8 is a socket head cap screw.

Based on the technical scheme, it needs to be explained that the plurality of equant openings and the radial screws 8 form the anti-loose self-locking structure of the holding nut 6, because of the existence of the equant openings, the two parts at the two sides of the opening of the holding nut are tensioned through the socket head cap screws, so that the threads at the two sides of the opening of the holding nut are drawn close to the middle of the holding nut, and the threads of the holding nut and the threads of the holding bush are mutually compressed, thereby achieving the anti-loose purpose. As shown in fig. 3-4, the gap between the screw threads of the tightening nut and the tightening bushing is located at one side without the opening, and the gap between the screw threads of the tightening nut and the tightening bushing is located at two sides with the screw threads being pressed toward the middle of the opening, thereby achieving the purpose of preventing loosening. The equant openings are uniformly arranged at intervals along the circumferential direction, and are determined to be a plurality of equant openings according to the actual size of the bearing, generally more than three equant openings.

In one embodiment, the taper of the conical surface of the outer wall of the fastening bush 5 is matched with the taper of the inner diameter taper hole of the inner ring 1.

In one embodiment, an oil filling hole 7 is arranged on the end face of the fastening bush 5, and the oil filling hole 7 is communicated to the inner diameter of the inner ring through an oil passage arranged inside the fastening bush.

The utility model discloses a bearing arrangement is for practicing thrift axial space, close a flange of bearing inner circle and the holding nut of holding sleeve as an organic whole, holding nut also is bearing inner circle retaining ring, consequently, the structure can not have lock washer, it is not hard up to prevent during operation holding nut, divide the branch opening in holding nut radial direction plus division, hexagonal screw structure in holding nut opening part increase, hold nut fastening through hexagon socket head cap screw, reach the not hard up purpose of holding nut in preventing during operation, cylindrical roller bearing axial that new construction has the holding sleeve occupies width H and equals bearing width B and subtracts the width H1 of inner circle flange width B plus nut, H = B-B + H1, new construction can practice thrift generally at axial direction than conventional structure about an inner circle flange width B.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The foregoing lists preferred embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims (9)

1. The utility model provides a cylindrical roller bearing with adapter sleeve which characterized in that: the inner diameter of the inner ring is a taper hole, a fastening bushing with the outer wall being a conical surface is arranged in the taper hole of the inner diameter of the inner ring, a fastening nut is sleeved on one side of the small end face of the fastening bushing, the fastening nut is pressed on the end face of the inner ring, and the side surface of the fastening nut is in contact with the end face of the roller and axially limits the roller.

2. The cylindrical roller bearing with adapter sleeve as set forth in claim 1, wherein: and a fastening nut is arranged on one side of the inner ring raceway, an inner ring rib is arranged on the other side of the inner ring raceway, and the side surface of the fastening nut, the side surface of the inner ring raceway and the side surface of the inner ring rib form an annular groove for accommodating the roller.

3. Cylindrical roller bearing with adapter sleeve according to claim 1, characterized in that: the large end face of the inner ring is flush with the end face of the roller, the small end face of the fastening bushing extends out of the large end face of the inner ring, the fastening nut is pressed against the large end face of the inner ring, and the edge of the outer ring of the fastening nut is in contact with the end face of the roller.

4. The cylindrical roller bearing with adapter sleeve as set forth in claim 1, wherein: the locking nut is of an anti-loosening self-locking structure.

5. Cylindrical roller bearing with adapter sleeve according to claim 4, characterized in that: the tightening nut is provided with a plurality of equant openings along the circumferential direction, and the plurality of equant openings radially penetrate through the inner wall of the tightening nut.

6. Cylindrical roller bearing with adapter sleeve according to claim 5, characterized in that: and the radial screw is arranged on the fastening nut along the radial direction and connected to the halving opening.

7. Cylindrical roller bearing with adapter sleeve according to claim 1, characterized in that: the fastening nut is connected to the outer wall of the fastening lining through threads.

8. Cylindrical roller bearing with adapter sleeve according to claim 1, characterized in that: the taper of the outer wall conical surface of the fastening bush is matched with the taper of the inner diameter taper hole of the inner ring.

9. Cylindrical roller bearing with adapter sleeve according to claim 1, characterized in that: the inner wall of the fastening bushing is a cylindrical surface.

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