CN2811656Y

CN2811656Y - Bearing protection structure

Info

Publication number: CN2811656Y
Application number: CN 200520103411
Authority: CN
Inventors: 杨基东
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-04
Filing date: 2005-08-04
Publication date: 2006-08-30
Anticipated expiration: 2015-08-04

Abstract

The utility model discloses a kind of bearing protection structure, prevent that the fluid that leaks from infiltrating bearing.It mainly is to be provided with more than one open-work in the pedestal that is equipped with bearing, and put a bearing cap in an end shield of this bearing, and be nested with a retaining ring in the side of this bearing cap, this bearing cap and retaining ring by running shaft wear fixing after, make the open-work of the position of this retaining ring corresponding to pedestal, for being assembled in devices such as swivel joint, when the Sealing of inside damages, the rotation that can pass through retaining ring is to form centrifugal force, the fluid barrier of leaking is got rid of down by the open-work discharge, make bearing impaired in case the fluid that stopping leak leaks infiltrates bearing.

Description

Bearing protection structure

Technical field

The utility model relates to a kind of bearing protection structure, refers to especially a kind ofly damage because of Sealing as rotary joint device, can prevent leak fluid infiltration bearing, avoids the impaired protection structure of its bearing.

Background technique

General swivel joint as shown in Figure 1, be to comprise a pedestal 11, single-revolution ring 12, a retaining ring 13, a C type clasp 14, a pad 15, two bearings 16, a running shaft 17 and another C type clasp 18, wherein, this pedestal is to be provided with rank portion in the inner edge middle position, when assembling, bearing 16 is placed on running shaft 17, running shaft 17 is inserted in by the opening of pedestal 11, retaining ring 13 elements such as grade is assembled on the running shaft 17 successively in another opening.This kind structure will slowly be infiltrated in the bearing 16 by an end when retaining ring 13 elements such as grade infringements or escape of liquid, make the bearing 16 can't regular event, cause the damage of bearing 16 when serious, and so, whole swivel joint promptly can't use, and is very undesirable.

Summary of the invention

The purpose of this utility model provides a kind of bearing protection structure, in case the fluid that stopping leak leaks infiltrates bearing, avoids bearing improper impaired.

For achieving the above object, the utility model proposes a kind of bearing protection structure, comprise:

One pedestal is to be hollow shape, and its wall is provided with more than one open-work;

One bearing cap, its central authorities are provided with the circular hole that wears for running shaft, and periphery is provided with the prominent wall of suitable thickness;

One retaining ring, its central authorities are provided with the circular hole that wears for running shaft, and periphery is made as the inclined-plane of suitable angle;

By the combination of aforementioned components, when being applied to device such as swivel joint, rotation that can be by retaining ring to be to form centrifugal force, and the fluid that makes leakage is discharged by the open-work of pedestal, prevents that it from infiltrating bearing.

Preferably, the installation position of this retaining ring is between between Sealing and bearing, in case the fluid that stopping leak leaks infiltrates bearing.

Preferably, this bearing cap is to be made of with one-body molded extension the pedestal inner edge.

Therefore; bearing protection structure of the present utility model; be to be provided with more than one open-work in the pedestal that is equipped with bearing; and put a bearing cap in an end shield of bearing; and be nested with a retaining ring in the side of this bearing cap; when other Sealing infringement, when leaking, can to form centrifugal force the open-work of leak fluid by pedestal be discharged by the rotation of retaining ring, in case stopping leak leakage current body infiltrates bearing.Bearing cap wherein is to be provided with prominent wall for being attached on the built-in C type of bearing clasp in periphery, and this retaining ring then is made as the inclined-plane in periphery, is beneficial to the whipping of leak fluid.Retaining ring wherein is the position of being located at corresponding to the pedestal open-work, is beneficial to discharging of leak fluid.

Description of drawings

Fig. 1 is known rotary joint structure figure.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is that the utility model is applied to the swivel joint sectional drawing.

Fig. 4, the 5th, illustration is implemented in action of the present utility model.

Fig. 6 is that of the present utility model another implemented illustration.

Description of reference numerals:

11, pedestal 2, pedestal 242, inclined-plane 12, pivoted loop

21, open-work 25, running shaft 13, retaining ring 22, bearing

26, pivoted loop 14, C type clasp 23, bearing cap 27, packing ring

15, pad 24, retaining ring 28, stationary seat 16, bearing

231, circular hole 30, leak fluid position 17, running shaft 232, prominent wall

31, leak fluid 18, C type clasp 241, circular hole

Embodiment

See also Fig. 2, the utility model mainly is to be provided with more than one open-work 21 in a hollow base frame 2, one end cap, one bearing cap 23 of the bearing 22 in pedestal 2, and be nested with and connect a retaining ring 24 in the side of this bearing cap, wherein, this bearing cap 23 is to be provided with circular hole 231 in central authorities, periphery then is provided with the prominent wall 232 of suitable thickness, 24 of this retaining rings are provided with central circular hole 241, and make its periphery be made as the inclined-plane 242 of suitable angle, make a running shaft 25 wear bearing 22, behind bearing cap 23 and the retaining ring 24, this retaining ring 24 is able to the open-work 21 corresponding to pedestal 2, drives the rotation of retaining ring 24 when running shaft 25 rotates simultaneously, and the leakage that is produced when making other Sealing infringement can discharge along open-work 21 by this retaining ring 24, in case stopping leak leakage current body infiltrates bearing 22, cause the damage of bearing 22.

See also Fig. 3, when the utility model is applied to swivel joint, be same establishing with open-work 21 in pedestal 2, and make running shaft 25 wear bearing 22 and bearing cap 23, retaining ring 24, the rear end then is respectively equipped with elements such as pivoted loop 26, packing ring 27, stationary seat 28, to constitute a swivel joint, retaining ring 24 is wherein rotated with running shaft 25, this bearing cap 23 then separates bearing 22 and retaining ring 24 inner radius and running shaft and bearing inner edge and possesses appropriate gap, makes bearing keep normal action;

When the pivoted loop 26 of swivel joint, stationary seat 28 infringements, when leaking, fluid along stationary seat 28 inner side leakage fluid positions 30 to retaining ring 24 surfaces, because this retaining ring 24 rotates with running shaft 25, retaining ring and running shaft be tightness cooperate and its position corresponding to the open-work 21 of pedestal 2, therefore, this retaining ring 24 can formed centrifugal force discharge the open-work 21 of leak fluid by support 2 when rotating, and then prevents that leak fluid from infiltrating bearing 22, and is impaired to avoid bearing.

Please consult Fig. 4,5 simultaneously, the utility model is when action, retaining ring 24 wherein is to rotate with running shaft 25, therefore, when leaking generation, leak fluid because of centrifugal force discharges its open-work 21 by pedestal 2, makes leak fluid can't enter bearing 22 in retaining ring 24 surfaces, prevents that bearing 22 from infiltrating impaired because of leak fluid;

Usually the assembling of swivel joint is marked running shaft as Fig. 5 and is become horizontal mode, and leak fluid 31 is down discharged, and the maintenance personnel can arrange to change maintenance at this moment, and this device can prolong bearing working life and prevent unusual damage.

As shown in Figure 6, bearing cap 23 of the present utility model is to be made as with pedestal 2 one-body moldedly, prevents that to constitute fixed bearing cap 23, can reach equally leak fluid from infiltrating the effect of bearing 22.

In sum, the utility model cooperates the support of establishing with open-work with bearing cap that is provided with prominent wall and the retaining ring that is provided with the periphery inclined-plane, the bearing that is placed on as swivel joint is reached prevent the purpose of being infiltrated by leak fluid.

Claims

1, a kind of bearing protection structure is characterized in that, comprises:

One bearing cap, its central authorities are provided with the circular hole that wears for running shaft, and periphery is provided with prominent wall;

One retaining ring, its central authorities are provided with the circular hole that wears for running shaft, and periphery is made as the inclined-plane;

Described retaining ring is provided with for rotatable.

2, bearing protection structure as claimed in claim 1 is characterized in that the installation position of this retaining ring is between between Sealing and bearing.

3, bearing protection structure as claimed in claim 1 is characterized in that this bearing cap is to be made of with one-body molded extension the pedestal inner edge.