CN219119652U

CN219119652U - Hydrostatic bearing

Info

Publication number: CN219119652U
Application number: CN202223580088.8U
Authority: CN
Inventors: 张育玮; 张进兴; 林保全
Original assignee: Nanjing Grind Tec Precision Co ltd
Current assignee: Nanjing Grind Tec Precision Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-02
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a hydrostatic bearing, which comprises a bearing main body, wherein the bearing main body comprises a bearing outer ring, a bearing inner ring, a retainer and tapered rollers, the outer sides of stress parts between the bearing outer ring and the bearing inner ring and between the bearing inner ring and the tapered rollers at the upper end of the retainer are respectively provided with a reinforcing outer ring and a reinforcing inner ring, and the inner sides of the reinforcing outer ring and the reinforcing inner ring are respectively provided with an outer ring oil storage cavity and an inner ring oil storage cavity. According to the hydrostatic bearing, the bearing outer ring and the bearing inner ring are connected with the reinforcing outer ring and the reinforcing inner ring which are arranged at the stress part, so that the wear resistance of the bearing outer ring and the bearing inner ring can be improved, and the bearing main body can finish oil storage during non-operation and lubrication during operation through the outer ring oil storage cavity, the inner ring oil storage cavity, the outer ring oil leakage hole and the inner ring oil leakage hole which are formed in the reinforcing outer ring and the reinforcing inner ring, so that the service life of the bearing main body is prolonged.

Description

Hydrostatic bearing

Technical Field

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

Background

In the existing hydrostatic bearing, along with the increase of the service time or the overlarge stress during the use, the rollers at the upper end of the central retainer of the bearing press the inner ring and the outer ring of the bearing to generate abrasion with the inner ring and the outer ring of the bearing, so that the bearing is damaged, and the rollers at the upper end of the inner retainer of the bearing are inconvenient to lubricate.

Disclosure of Invention

The utility model mainly aims to provide a hydrostatic bearing which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a hydrostatic bearing, includes the bearing main part, the bearing main part includes bearing outer lane, bearing inner circle, holder and tapered roller, the atress portion outside that bearing outer lane and bearing inner circle and holder upper end tapered roller are connected between all is provided with strengthens outer lane and strengthens the inner circle, it all has offered outer lane oil storage chamber and inner circle oil storage chamber to strengthen the inboard of inner circle, outer lane oil drain hole and inner circle oil drain hole have all been seted up to the equal annular arrangement of inner wall upper end in outer lane oil storage chamber and inner circle oil storage chamber.

Preferably, the reinforced outer ring and the reinforced inner ring are made of refined steel materials.

By adopting the technical scheme, the following technical effects can be achieved: the bearing outer ring, the bearing inner ring and the tapered rollers are connected with the reinforcing outer ring and the reinforcing inner ring which are arranged at the stress part, so that the wear resistance among the bearing outer ring, the bearing inner ring and the tapered rollers can be improved.

Preferably, the outer ring oil storage cavity and the inner ring oil storage cavity are both in annular structures.

By adopting the technical scheme, the following technical effects can be achieved: the outer ring oil storage cavity and the inner ring oil storage cavity are formed in the inner side of the reinforced outer ring and the inner ring, and oil can be stored through the outer ring oil leakage hole and the inner ring oil leakage hole at the upper end when the bearing main body does not operate.

Preferably, the upper surfaces of the outer ring oil leakage hole and the inner ring oil leakage hole are attached to the tapered roller, and the number of the outer ring oil leakage hole and the number of the inner ring oil leakage hole are all a plurality of groups.

By adopting the technical scheme, the following technical effects can be achieved: when the bearing main body does not operate, lubricating oil stored in the outer ring oil storage cavity and the inner ring oil storage cavity lubricates tapered rollers at the upper end of the retainer through the outer ring oil leakage hole and the inner ring oil leakage hole at the upper end when the bearing main body operates.

Preferably, the reinforcing outer ring and the reinforcing inner ring at two sides of the bearing outer ring and the bearing inner ring are fixedly connected through outer ring fixing screws and inner ring fixing screws.

By adopting the technical scheme, the following technical effects can be achieved: the outer ring and the inner ring are reinforced by fixing the outer ring fixing screw and the inner ring fixing screw, so that the stability of the inner ring and the outer ring during operation can be maintained.

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

the utility model provides a hydrostatic bearing, through the reinforcing outer lane that connects the atress portion setting between bearing outer lane, bearing inner circle and the tapered roller with strengthen the inner circle, can improve the wearability of bearing outer lane, bearing inner circle, through strengthening outer lane, strengthen the inside outer lane oil storage chamber, inner circle oil storage chamber and outer lane oil drain hole, the inner circle oil drain hole of seting up of inner circle for the bearing main part can accomplish the lubrication when not moving the oil storage and during operation, and then improves the life of bearing main part.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is another view of the present utility model;

FIG. 3 is a schematic view of the outer race structure of the bearing of the present utility model;

FIG. 4 is a partial vertical cross-sectional view of the bearing cup of the present utility model;

FIG. 5 is a schematic view of the bearing inner race structure of the present utility model;

fig. 6 is a partial vertical sectional view of the bearing inner race of the present utility model.

Reference numerals:

100. a bearing body; 110. a bearing outer ring; 120. a bearing inner ring; 130. a retainer; 140. tapered rollers;

111. reinforcing the outer ring; 112. an outer ring oil storage cavity; 113. an outer ring oil leakage hole; 114. an outer ring fixing screw;

121. reinforcing the inner ring; 122. an inner ring oil storage cavity; 123. an inner ring oil leakage hole; 124. the inner ring is fixed with a screw.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-6, this embodiment provides a hydrostatic bearing, including a bearing main body 100, where the bearing main body 100 includes a bearing outer ring 110, a bearing inner ring 120, a retainer 130 and tapered rollers 140, the outer sides of stress portions between the bearing outer ring 110 and the bearing inner ring 120 and between the bearing inner ring 120 and the tapered rollers 140 at the upper end of the retainer 130 are respectively provided with a reinforced outer ring 111 and a reinforced inner ring 121, inner sides of the reinforced outer ring 111 and the reinforced inner ring 121 are respectively provided with an outer ring oil storage cavity 112 and an inner ring oil storage cavity 122, and upper ends of inner walls of the outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 are respectively provided with an outer ring oil leakage hole 113 and an inner ring oil leakage hole 123 in an annular arrangement.

The reinforcing outer ring 111 and the reinforcing inner ring 121 are both made of a refined steel material.

Specifically, the bearing outer ring 110, the bearing inner ring 120 and the tapered rollers 140 are connected with the reinforcing outer ring 111 and the reinforcing inner ring 121 which are arranged at the stress part, so that the wear resistance among the bearing outer ring 110, the bearing inner ring 120 and the tapered rollers 140 can be improved, and the service life of the bearing main body 100 can be further prolonged.

The outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 are of circular ring structures, the upper surfaces of the outer ring oil leakage hole 113 and the inner ring oil leakage hole 123 are attached to the tapered roller 140, and the number of the outer ring oil leakage hole 113 and the inner ring oil leakage hole 123 is a plurality of groups.

Specifically, the outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 formed inside the reinforced outer ring 111 and the reinforced inner ring 121 can store oil through the outer ring oil drain hole 113 and the inner ring oil drain hole 123 at the upper end when the bearing main body 100 does not operate, and the lubricating oil stored inside the outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 can lubricate the tapered roller 140 rotating at the upper end of the retainer 130 through the outer ring oil drain hole 113 and the inner ring oil drain hole 123 at the upper end when the bearing main body 100 operates, so that friction between the tapered roller 140 and the reinforced outer ring 111 and the reinforced inner ring 121 is reduced.

The reinforcing outer ring 111 and the reinforcing inner ring 121 on both sides of the bearing outer ring 110 and the bearing inner ring 120 are fixedly connected by the outer ring fixing screw 114 and the inner ring fixing screw 124.

Specifically, the stability of the bearing during operation can be maintained by the reinforcement outer ring 111 and the reinforcement inner ring 121, which are fixed to the bearing outer ring 110 and the bearing inner ring 120 by the outer ring fixing screws 114 and the inner ring fixing screws 124 which are arranged in an annular shape.

The working principle and the using flow of the utility model are as follows:

when the bearing main body 100 does not operate, the lubricating oil flowing at the upper end of the bearing main body 100 enters the bottom of the outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 to be stored through the outer ring oil leakage hole 113 and the inner ring oil leakage hole 123 which are formed in the inner wall of the outer ring 111 and the inner ring 121 which are arranged at the two sides of the outer ring 110 and the inner ring 120 of the bearing, when the bearing main body 100 operates, the lubricating oil stored in the inner wall of the outer ring oil storage cavity 112 and the inner ring oil storage cavity 122 is thrown to the upper end of the tapered roller 140 rotating at a high speed through the outer ring oil leakage hole 113 and the inner ring oil leakage hole 123 which are arranged at the upper end, and the tapered roller 140 is lubricated, so that friction between the tapered roller 140 and the reinforcing outer ring 111 and the reinforcing inner ring 121 at the upper end and the lower end is reduced, the operation effect of the bearing main body 100 can be improved, abrasion of the bearing main body 100 can also be reduced, and the wear resistance between the reinforcing outer ring 111 and the reinforcing inner ring 121 which are arranged at the connecting stress parts between the bearing outer ring 110, the bearing inner ring 120 and the tapered roller 140 can be improved when the tapered roller 140 in the bearing main body 100 is stressed too much, and the service life of the bearing main body 100 is further improved.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "mounted," "secured" 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 above 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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. Hydrostatic bearing, including bearing main part (100), bearing main part (100) include bearing outer lane (110), bearing inner race (120), holder (130) and tapered roller (140), its characterized in that: the bearing outer ring (110) and the bearing inner ring (120) are connected with tapered rollers (140) at the upper end of the retainer (130), the outer side of a stress part is provided with a reinforced outer ring (111) and a reinforced inner ring (121), the inner sides of the reinforced outer ring (111) and the reinforced inner ring (121) are provided with an outer ring oil storage cavity (112) and an inner ring oil storage cavity (122), and the upper ends of the inner walls of the outer ring oil storage cavity (112) and the inner ring oil storage cavity (122) are provided with an outer ring oil leakage hole (113) and an inner ring oil leakage hole (123) in an annular arrangement.

2. A hydrostatic bearing according to claim 1, wherein: the reinforcing outer ring (111) and the reinforcing inner ring (121) are made of refined steel materials.

3. A hydrostatic bearing according to claim 1, wherein: the outer ring oil storage cavity (112) and the inner ring oil storage cavity (122) are of circular ring structures.

4. A hydrostatic bearing according to claim 1, wherein: the upper surfaces of the outer ring oil leakage holes (113) and the inner ring oil leakage holes (123) are attached to the tapered rollers (140), and the number of the outer ring oil leakage holes (113) and the number of the inner ring oil leakage holes (123) are several groups.

5. A hydrostatic bearing according to claim 1, wherein: the bearing outer ring (110) and the reinforcing outer ring (111) and the reinforcing inner ring (121) on two sides of the bearing inner ring (120) are fixedly connected through outer ring fixing screws (114) and inner ring fixing screws (124).