CN202673748U

CN202673748U - Centrifugal pump rotor support structure

Info

Publication number: CN202673748U
Application number: CN2012202629048U
Authority: CN
Inventors: 牛万套; 罗珍荣; 苏杰万; 严莹珞; 梁培昌
Original assignee: Guangdong Sunion Chemical & Plastic Co Ltd
Current assignee: Guangdong Sunion Chemical & Plastic Co Ltd
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2013-01-16
Anticipated expiration: 2022-06-05

Abstract

A centrifugal pump rotor support structure comprises a shaft, a shaft sleeve, an oil seal, a bearing, a bearing box and a bearing box gland. A rigidity thrust bearing is applied in the bearing, grease is applied to lubricate the bearing, and a double-layer O-shaped ring is placed on the sealing position between the bearing box and the shaft sleeve. Due to the facts that the rigidity thrust bearing is applied, the bearing is lubricated by the grease and the bearing box is sealed by the double-layer O-shaped sealing ring, the problem that the bearing is prone to be broken by the axial impact of the thrust disc under the condition of the discontinuity working of the centrifugal and half evacuation existing in industrial art and working condition is solved, the sealing is tight and not prone to leak, and the time of maintenance is reduced greatly. Besides, the capital is saved and the performance of the enterprise is improved.

Description

A kind of centrifugal pump rotor supporting structure

Technical field

The utility model relates to the centrifugal pump field, is specifically related to a kind of rotor supporting structure of centrifugal pump.

Background technique

Centrifugal pump is the common equipment of polymerization process, because the process characteristic that polymerization is produced, the centrifugal pump that is used for the polymeric kettle bottom needs interrupted start-stop, usually reach ten times every day, about each ten minutes, when number of times frequently and at every turn shifts glue to final stage, cause the larger vaccuum phenomenon that produces of change in concentration of medium owing to the interpolation solvent washing, cause that centrifugal pump rotor axially frequently moves back and forth, make the thrust disc of rotor cause larger impact to bearing, because the spring bearing of rotor is common SiC bearing, can not offset end thrust, therefore often cause the stuck pump shaft of broken bearing, need frequent maintain and replace, what impact was produced normally carries out.

The model utility content

The utility model provides a kind of centrifugal pump rotor supporting structure, has solved plain bearing and can not offset end thrust, causes the problem of pump seizure.

For achieving the above object, by the following technical solutions:

A kind of centrifugal pump rotor supporting structure comprises axle, axle sleeve, oil sealing, bearing, bearing housing and bearing housing gland, and described bearing adopts the rigidity thrust-bearing.

As a preferred version, described bearing adopts butter lubricated.

As further preferred version, double-deck O type circle is equipped with in sealing place between described bearing housing and the axle sleeve.

The utility model is by adopting the rigidity thrust-bearing to support pump shaft, and with butter bearing is lubricated, bearing housing adopts double-deck O type circle sealing, solved spring bearing breakable problem under the thrust disc axial impact, and sealing is tighter, is difficult for leaking, and has greatly reduced maintenance, maintenance times, save fund, improved the performance of enterprises.

Description of drawings

The below is described in further detail the utility model according to embodiment and accompanying drawing.

Fig. 1 is the utility model general structure schematic diagram;

Among the figure:

1, axle; 2, axle sleeve; 3, oil sealing; 4, bearing housing; 5, rigidity thrust-bearing; 6, bearing housing gland; 7, O type circle.

Embodiment

As shown in Figure 1, provided a specific embodiment of the present utility model, be support and the sealing configuration of centrifugal pump axle head among the figure, do not represent pump case, centrifugal pump shaft 1 overcoat has axle sleeve 2 among Fig. 1, axle 1 is that key is connected with axle sleeve 2, the end of axle sleeve 2 is equipped with rigidity thrust-bearing 5, the end of rigidity thrust-bearing 5 and axle sleeve 2 and axle 1 all is positioned at bearing housing 4, the end that axle sleeve 2 stretches out outside bearing housing 4 is set with oil sealing 3, it is fixed on the end face of bearing housing 4 by four screws, bearing housing 4 ends are equipped with bearing housing gland 6, surface of contact at bearing housing 4 and axle sleeve 2 is provided with two resealings, seal with double-deck O type circle 7, and rigidity thrust-bearing 5 adopts butter lubricated.

The utility model is by adopting rigidity thrust-bearing 5 to support the axle 1 of centrifugal pump, and with butter bearing 5 is lubricated, bearing housing 4 adopts double-deck O type circle 7 sealings, solved spring bearing breakable problem under the thrust disc axial impact, and sealing is tighter, is difficult for leaking, and has greatly reduced maintenance, maintenance times, save fund, improved the performance of enterprises.

Claims

1. a centrifugal pump rotor supporting structure comprises axle, axle sleeve, oil sealing, bearing, bearing housing and bearing housing gland, it is characterized in that, described bearing adopts the rigidity thrust-bearing.

2. a kind of centrifugal pump rotor supporting structure according to claim 1 is characterized in that, described bearing adopts butter lubricated.

3. a kind of centrifugal pump rotor supporting structure according to claim 1 is characterized in that, double-deck O type circle is equipped with in sealing place between described bearing housing and the axle sleeve.