CN203114708U

CN203114708U - Rolling bearing part structure

Info

Publication number: CN203114708U
Application number: CN 201220736019
Authority: CN
Inventors: 邢冬燕; 张锡淼
Original assignee: Shanghai Liancheng Group Co Ltd
Current assignee: Shanghai Liancheng Group Co Ltd
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2013-08-07
Anticipated expiration: 2022-12-28

Abstract

The utility model relates to a rolling bearing part structure, which comprises a spindle, a bearing body, a bearing cover with a hole, and a bearing cover without a hole, wherein the bearing body, the bearing cover with the hole, and the bearing cover without the hole form a sealed cavity; and a rolling bearing is arranged in the sealed cavity. The rolling bearing part structure is characterized by also comprising a thrust bearing located in the sealed cavity, wherein the thrust bearing is sheathed on the spindle; one end face of the thrust bearing is opposite to the bearing cover without the hole; the other end face of the thrust bearing is abutted against the rolling bearing; and the bearing body and the bearing cover with the hole are designed integrally. Through the structure, a bearing can guarantee the aims of normal operation and mechanical seal protection, the parts can be reduced, the production and processing cost is reduced, each processing matching surface is reduced, and the processing error is reduced, so that the operation performance of a pump is improved.

Description

A kind of roller bearing component structure

Technical field

The utility model relates to submersible axial flow pump, particularly a kind of roller bearing component structure.

Background technique

Shown in Fig. 1 is a kind of multistage centrifugal pump for sub-high pressure rolling bearing systems that adopt more, wherein, comprise: rotating shaft, bearing support 1, porose bearing gland 2, non-proous bearing gland 5, wherein, bearing support, porose bearing gland and non-proous bearing gland form a closed cavity, are equiped with rolling bearing, thrust bearing first 3 and thrust bearing second 4 in this closed cavity.And for the sub-high pressure multistage centrifugal pump of mechanical seal form; the infringement because the axial float of rotor is squeezed for avoiding mechanical seal; so dress thrust bearing first and thrust bearing second behind rolling bearing; its gap has been fixed on the shifting amount backward of rotor in certain scope; less than the axial movement value of mechanical seal, thereby play the effect that the protection machine seals.In this structure, component are more, increased the difficulty of manufacturing assembling, are difficult to well guarantee the size of each fitting surface, thereby influence the usability of pump itself.

The model utility content

The purpose of this utility model is to reduce amount of parts, reduces difficulty of processing, and a kind of novel roller bearing component structure is provided.

The utility model is achieved in that a kind of roller bearing component structure, comprise: rotating shaft, bearing support, porose bearing gland, non-proous bearing gland, wherein, bearing support, porose bearing gland and non-proous bearing gland form a closed cavity, are equiped with rolling bearing in this closed cavity, it is characterized in that, comprise that also one is positioned at the thrust bearing of described closed cavity, this thrust bearing is sheathed in the rotating shaft, and one end is relative with the non-proous bearing gland, other end and rolling bearing against; Described bearing support and porose bearing gland integrated design.

Advantage of the present utility model: bearing can guarantee the purpose of normal operation and protection machine envelope, and makes component reduce, and the production and processing cost reduces, and respectively processes fitting surface and reduce, and make machining error reduce, thereby the pump operation performance is improved.

Description of drawings

Fig. 1 is the prior art constructions schematic representation.

Fig. 2 is structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing structure of the present utility model is described.

Shown in Fig. 2 is a kind of roller bearing component structure, comprise: rotating shaft, bearing support 11, porose bearing gland 12, non-proous bearing gland 14, wherein, bearing support, porose bearing gland and non-proous bearing gland form a closed cavity, be equiped with rolling bearing in this closed cavity, it is characterized in that, comprise that also a thrust bearing 13(cross section that is positioned at described closed cavity is the L type), this thrust bearing is fixed in the rotating shaft, one end is relative with the non-proous bearing gland, and leave little gap (about 2mm) between the two, other end and rolling bearing are against, the axial movement value of gap assurance machine between thrust bearing and porose bearing (ball) cover envelope.Described bearing support and porose bearing gland unite two into one, and integrated design forms new bearing support structure.Be not difficult to find out that two parts of the prior art become a part of this creation, have reduced casting cost and processing cost when being divided into two parts originally, assembly process is easier to carry out.And working surface reduces, and the part mismatch error will reduce, thereby has reduced the generation of fault, makes the longer service life of pump.

Below only expressed mode of execution of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. roller bearing component structure, comprise: rotating shaft, bearing support, porose bearing gland, non-proous bearing gland, wherein, bearing support, porose bearing gland and non-proous bearing gland form a closed cavity, are equiped with rolling bearing in this closed cavity, it is characterized in that, comprise that also one is positioned at the thrust bearing of described closed cavity, this thrust bearing is sheathed in the rotating shaft, and one end is relative with the non-proous bearing gland, other end and rolling bearing against; Described bearing support and porose bearing gland integrated design.

2. a kind of roller bearing component structure as claimed in claim 1 is characterized in that, the cross section of described thrust bearing is the L type.

3. a kind of roller bearing component structure as claimed in claim 1 is characterized in that, leaves little gap between described thrust bearing and the non-proous bearing gland.