CN221170434U

CN221170434U - Thrust bearing cover

Info

Publication number: CN221170434U
Application number: CN202322895126.7U
Authority: CN
Inventors: 吴勤俭
Original assignee: Ningbo Haina Machinery Co ltd
Current assignee: Ningbo Haina Machinery Co ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-06-18
Anticipated expiration: 2033-10-26

Abstract

The application discloses a thrust bearing cover, which belongs to the technical field of bearing accessories and is used for providing a thrust bearing cover with lower replacement cost and longer service life. The utility model discloses an inside one deck relatively thin isolation lining structure that sets up of bearing cap replaces the main part of bearing cap to hold with the footstep and touches the friction, has reduced the wearing and tearing speed of footstep bearing and lid, has prolonged the life of two, and after using a period in addition, only need the isolation lining that the replacement cost is lower just can continue to keep higher cooperation precision, and the replacement cost is lower.

Description

Thrust bearing cover

Technical Field

The application relates to the technical field of bearing accessories, in particular to a thrust bearing cover.

Background

The thrust bearing is a common shaft restraining component, can well limit the axial movement of the shaft body along the axis to maintain the position precision of the shaft body, and like other bearings, the thrust bearing also needs to be provided with a bearing cover to ensure the installation stability of the thrust bearing and the main shaft shell, and although the thrust bearing can convert the sliding friction of the main shaft into rolling friction, the relatively moving component can be continuously worn, including but not limited to the thrust bearing and the bearing cover, and the replacement cost of the thrust bearing and the bearing cover is not low.

Disclosure of Invention

The application aims to provide a thrust bearing cover which is lower in replacement cost and longer in service life.

To achieve the above object, the present application provides a thrust bearing cap: the novel bearing cover comprises a cover body, wherein a coaxial end cover is arranged in the center of the cover body, the end cover is provided with a fit cavity penetrating through two ends, the inner wall of the fit cavity is in a round table shape coaxial with the end cover, the cover body is provided with an isolation lining in the fit cavity, the isolation lining can rotate around a shaft relative to the cover body, the inner wall of the isolation lining is suitable for directly contacting with a thrust bearing, a plurality of countersunk holes penetrating through two end faces are formed in the outer part of the fit cavity of the cover body, the axes of the countersunk holes are parallel to the axes of the end cover and are suitable for bolts to penetrate through, and the bearing cover is fixed on the outer surface of a main shaft.

As one preferable mode, the cover body is provided with an embedded edge at one end with larger caliber of the fit cavity, and a plurality of equally-spaced locating grooves are formed in the end face, away from the cover body, of the embedded edge for dispersing the stress of the bolts, so that the bearing end cover is firmer when being used in rotation.

Preferably, the counter bore is penetrated from the other end of the cover body to the end of the embedded edge, and the counter bore is penetrated to the end face of the embedded edge, so that the contact area between the bolt connecting piece and the bearing cover is increased.

As one preferable mode, the number of the countersunk holes is at least four, and the axes of the end covers of the countersunk holes are distributed at equal intervals, so that the balanced stress is facilitated.

As one preferable mode, the cover body is provided with a load reducing groove on the end face opposite to the embedded edge, and the load reducing groove is positioned between the adjacent counter bores and used for reducing unnecessary consumable materials of the bearing cover, thereby reducing dead weight and realizing light weight to the greatest extent on the premise of ensuring structural strength.

Preferably, the cover body is provided with an engaging groove communicated with the engaging cavity at an end face where the embedded edge is located, and the engaging groove is collinear with the axis of the end cover and is used for engaging with the annular protrusion on the outer surface of the spindle housing.

Preferably, the edge of the end of the isolating lining with larger caliber is provided with a clamping edge, and the outer side surface of the clamping edge is used as the inner wall of the clamping groove, so that the clamping groove is more stable after being matched with the annular bulge on the outer surface of the main shaft shell.

Preferably, the edge of the end, with the smaller caliber, of the isolation lining is provided with a top ring, the top ring penetrates through the small caliber of the fit cavity and extends out of the end cover, and the isolation lining is conveniently ejected out of the fit cavity.

Compared with the prior art, the application has the beneficial effects that:

(1) The inner part of the bearing cover is provided with the thinner isolation lining structure, so that the contact friction between the main part of the bearing cover and the thrust bearing is replaced, the wear speed of the thrust bearing and the cover body is reduced, the service lives of the thrust bearing and the cover body are prolonged, and after the bearing cover is used for a period of time, the higher matching precision can be continuously maintained only by replacing the isolation lining with lower cost, and the replacement cost is lower;

(2) The isolation lining in the bearing cover is matched with the cover body in a direct embedding way, the contact surface of the isolation lining and the cover body is conical, and the dismounting resistance is very small, so that the dismounting operation is more convenient and trouble-saving, and the cover body is hardly damaged like interference fit.

Drawings

Fig. 1 is a first perspective view of the general assembly structure of the thrust bearing cap;

FIG. 2 is a second perspective view of the final assembly structure of the thrust bearing cap;

Fig. 3 is a perspective sectional view of the total assembly structure of the thrust bearing cover;

fig. 4 is a perspective structural sectional view of the cover body of the thrust bearing cover;

FIG. 5 is a partial cross-sectional view of the perspective structure of the cover body of the thrust bearing cover;

fig. 6 is a perspective cross-sectional view of the spacer liner of the thrust bearing cap.

In the figure: 1. an isolation liner; 101. a top ring; 102. clamping edges; 2. a cover body; 201. an embedded edge; 202. an end cap; 203. a countersunk hole; 204. a positioning groove; 205. a mating cavity; 206. a load reducing groove; 12. and a clamping groove.

Detailed Description

The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The thrust bearing cover as shown in fig. 1-6, which comprises a cover body 2 occupying most volume, wherein the cover body 2 is made of corrosion-resistant alloy material, no special wear-resistant is needed, the center of the cover body 2 is provided with a coaxial end cover 202, the end cover 202 is of a cone-shaped structure integrated with the cover body 2, the end cover 202 is provided with a joint cavity 205 penetrating through two ends and used for installing another smaller-volume part of the bearing cover, the end face of the cover body 2 where an embedded edge 201 is arranged is provided with a joint groove 12 communicated with the joint cavity 205 and used for being in joint with a convex ring structure on the outer side surface of a main shaft shell, the joint groove 12 is in a same line with the axis of the end cover 202 and is of a rotator structure, the inner wall of the joint cavity 205 is of a cone shape coaxial with the end cover 202, that is to say, the inner wall of the joint cavity 205 is provided with a certain taper for being in joint with the cone end of the thrust bearing, the cover body 2 is provided with an isolating lining 1 in the joint cavity 205, the material with hardness smaller than that of the cover body 2 is adopted, in order to replace the cover body 2 to participate in abrasion, the edge of the end with larger caliber of the isolation lining 1 is provided with a clamping edge 102, the same embedded edge 201 has smaller axial dimension, the inner side surface and the outer side surface are cylindrical surfaces, the outer side surface of the clamping edge 102 is used as the inner wall of the clamping groove 12, the clamping groove 12 forms an annular groove structure with only one open end, the clamping edge 102 can be embedded into the inner wall of the annular structure of the outer side surface of the main shaft shell, the edge of the end with smaller caliber of the isolation lining 1 is provided with a top ring 101, the axial dimension of the top ring 101 is smaller, unlike the main body part of the isolation lining 1, the top ring 101 is in a cylindrical shape without taper, the edge column of the top ring 101 is chamfered, the top ring 101 penetrates through the small caliber of the engaging cavity 205 and extends out of the end cover 202, thus when the isolation lining 1 is replaced, the isolation lining 1 can be ejected from the engaging cavity 205 by the top ring 101, moreover, since the inner wall and the outer wall of the isolation lining 1 and the inner wall of the fit cavity 205 are both coated with lubricating oil, the isolation lining 1 can rotate around the shaft relative to the cover body 2, and the rotation of the thrust bearing is compensated, so that the main shaft is smoother in rotation, the inner wall of the isolation lining 1 is used for directly contacting with the thrust bearing, and lubricating oil naturally exists between the isolation lining 1 and the thrust bearing.

The cover body 2 is provided with a plurality of countersunk holes 203 penetrating through two end surfaces at the part outside the fit cavity 205 for allowing connecting pieces such as bolts to pass through, the cover body 2 is fixed on the shell of the main shaft, the axis of the countersunk holes 203 is parallel to the axis of the end cover 202, the screwed bolts can provide larger bolting force to support the main shaft, play and vibration of the main shaft are reduced, the cover body 2 is provided with an embedded edge 201 at one end with larger caliber of the fit cavity 205 for being embedded into an annular groove structure on the outer surface of the main shaft shell, the countersunk holes 203 are penetrated by the other end of the cover body 2 into the end of the embedded edge 201, namely, one end with larger inner diameter of the countersunk holes 203 is positioned at the end surface of the cover body 2 facing away from the embedded edge 201, the other end of the countersunk holes 203 are penetrated to the end surface of the embedded edge 201, that is, the bolts also pass through the embedded edge 201, at least four counter sunk holes 203 can ensure connection stability, the axes of the end covers 202 of the counter sunk holes 203 are equidistantly distributed, stress balance is ensured, the end faces of the embedded edge 201 far away from the cover body 2 are provided with a plurality of equally distributed positioning grooves 204, and the positioning grooves are meshed with the convex structures at the bottom of the annular groove structure on the outer surface of the spindle shell, so that the rotation of the cover body 2 integrated with the embedded edge 201 is limited, the end faces of the cover body 2 back to the embedded edge 201 are provided with load reducing grooves 206, consumable materials are reduced, dead weight is reduced, the load reducing grooves 206 are positioned between the adjacent counter sunk holes 203, and uniformity of material distribution of the cover body 2 is ensured, and the positioning grooves 204 are positioned between the counter sunk holes 203.

Working principle: when the anti-wear device is used, the cone part of the thrust bearing is sleeved on the main shaft, the isolation lining 1 is sleeved on the cone part of the thrust bearing, the cover body 2 is covered outside the isolation lining 1, the embedded edge 201 is matched with the annular groove on the outer surface of the main shaft shell, the cover body 2 is fixed on the main shaft shell through the countersunk holes 203 by using connecting pieces such as bolts, when the main shaft rotates, the thrust bearing is responsible for most of rotation, the isolation lining 1 is responsible for supplementing the insufficient rotation amount of the thrust bearing, the isolation lining 1 can rotate relative to the cover body 2 and also can rotate relative to the thrust bearing, and the rotation amount relative to the cover body 2 is larger, the abrasion to the cover body 2 is also more, the contact abrasion of the three parts is smaller due to the action of lubrication, and the abrasion of the isolation lining 1 is mainly born, so that the abrasion of the outer ring of the thrust bearing and the inner wall of the combining cavity 205 of the cover body 2 can be almost ignored, the worn isolation lining 1 can be replaced conveniently, the replacement cost is lower, the service life of the two parts of the thrust bearing and the cover body 2 is prolonged effectively, and the service cost of the device is reduced effectively.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims

1. A thrust bearing cap, characterized by: including lid (2), the central authorities of lid (2) have coaxial end cover (202), end cover (202) have the joint chamber (205) that link up both ends, the inner wall of joint chamber (205) be with the coaxial round platform shape of end cover (202), lid (2) are in joint chamber (205) are provided with keep apart inside lining (1), keep apart inside lining (1) can for lid (2) are rotated around the axle, the inner wall of keep apart inside lining (1) is suitable for directly and footstep bearing to touch, lid (2) are in the part outside joint chamber (205) has seted up a plurality of countersunk holes (203) that run through both ends face, countersunk hole (203) the axis with the axis of end cover (202) is parallel, is suitable for supplying the bolt to pass.

2. The thrust bearing cap of claim 1, wherein: the cover body (2) is provided with an embedded edge (201) at one end with larger caliber of the fit cavity (205), and a plurality of equally-distributed positioning grooves (204) are formed in the end face, away from the cover body (2), of the embedded edge (201).

3. The thrust bearing cap of claim 2, wherein: the counter bore (203) penetrates from the other end of the cover body (2) to the end of the embedded edge (201), and the counter bore (203) penetrates to the end face of the embedded edge (201).

4. A thrust bearing cap as claimed in claim 3, wherein: at least four counter sunk holes (203) are arranged, and the axes of the end covers (202) of the counter sunk holes (203) are equidistantly arranged.

5. The thrust bearing cap of claim 4, wherein: the end face of the cover body (2) facing away from the embedded edge (201) is provided with a load relief groove (206), and the load relief groove (206) is positioned between adjacent counter sunk holes (203).

6. The thrust bearing cover of any one of claims 2 to 5, characterized in that: the cover body (2) is provided with a clamping groove (12) communicated with the fit cavity (205) at the end face where the embedded edge (201) is located, and the clamping groove (12) is collinear with the axis of the end cover (202).

7. The thrust bearing cap of claim 6, wherein: the edge of one end of the isolation lining (1) with a larger caliber is provided with a clamping edge (102), and the outer side surface of the clamping edge (102) is used as the inner wall of the clamping groove (12).

8. The thrust bearing cap of claim 7, wherein: the edge of one end of the isolation lining (1) with smaller caliber is provided with a top ring (101), and the top ring (101) penetrates through the small caliber of the fit cavity (205) and extends out of the end cover (202).