CN205225765U

CN205225765U - Novel shield pump

Info

Publication number: CN205225765U
Application number: CN201521135279.0U
Authority: CN
Inventors: 杨忠良; 郭亭峰
Original assignee: Fu Bo (tianjin) Motor Technology Development Co Ltd
Current assignee: Fu Bo (tianjin) Motor Technology Development Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-05-11
Anticipated expiration: 2025-12-29

Abstract

The utility model relates to a novel shield pump comprises the pump body, casing, impeller, pivot, stator, rotor, stator can, rotor housing, front end housing, rear end cap, fore bearing and rear bearing, its characterized in that: all be provided with the round seal groove on the rear end face of front end housing and on the rear end face of rear axle bearing, be provided with sealed rubber ring in each seal groove, stator can's front end setting is on the front end housing between sealed rubber ring and the casing, and front end housing and casing pass through bolted connection, and stator can's rear end sets up on the rear axle bearing between sealed rubber ring and the rear end cap, stator can and rotor housing be the turning shaping. The utility model discloses structural design scientific and reasonable has that cost of maintenance is low, shielding property is good, a long service life, the advantage that easily realizes, is a novel shield pump who has higher novelty.

Description

A kind of Novel shield pump

Technical field

The utility model relates to a kind of canned motorpump, particularly a kind of Novel shield pump.

Background technique

Canned motorpump is coaxially made up of drive motor and pump, and it does not need mechanical seal and No leakage, is applicable to carry various poisonous, harmful and valuable liquid, extensive use in the devices such as chemical pharmaceutical, nuclear industry, space flight.

But in long-term production practices, existing canned motorpump also exists following drawback: 1. the integral structure for welding together between stator can and stator, once wherein there be parts damages, this whole part will all be changed, and maintenance cost is higher; 2. no matter existing housing is that stator can or Rotor can are and stretch compressing, and this kind of moulding process makes the jacket wall of housing excessively thin, and shielding properties is undesirable.

Summary of the invention

The purpose of this utility model is to provide that a kind of scientific structure design is reasonable, maintenance cost is low, advantages of good shielding performance, be easy to the Novel shield pump that realizes.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of Novel shield pump, by the pump housing, housing, impeller, rotating shaft, stator, rotor, stator can, Rotor can, front cover, rear end cover, fore bearing and rear bearing are formed, described impeller is positioned at the pump housing, the pump housing is fixed by the front end of front cover and housing, the rear end of housing is fixing by rear end cover sealing, the front end of described rotating shaft is connected with impeller by fore bearing, the rear end thereof of rotating shaft is arranged on the rear bearing that is positioned on rear end cover, described rotor is installed in rotating shaft, stator is had in the outer installment of rotor, the madial wall of stator is provided with stator can, the outer side wall of rotor is provided with Rotor can, it is characterized in that: on the ear end face of described front cover and on the ear end face of rear bearing block, be provided with a circle seal groove, O-ring seal is provided with in each seal groove, the front end of stator can be arranged on front cover between O-ring seal and housing, front cover and housing are bolted, the rear end of stator can be arranged on rear bearing block between O-ring seal and rear end cover, it is shaping that described stator can and Rotor can are turning.

And, described stator can is made up of body, front sealing eaves and the rear sealing eaves that turning is shaping, on the front end outer side wall of body, laser beam welding seals eaves before being connected to, on the rear inside wall of body, laser beam welding seals eaves after being connected to, described front sealing eaves is arranged on front cover between O-ring seal and housing by bolt clamping, and described rear sealing eaves to be arranged on rear bearing block between O-ring seal and rear end cover.

And described fore bearing and rear bearing are cemented carbide bearing.

Advantage of the present utility model and beneficial effect are:

1. this Novel shield pump, by being by bolt stator can clamped to make it be fixed on structure on stator madial wall by stator can before and the welded structural design of stator, once stator or stator can damage, just by demounting bolt, stator can and stator are separated, convenient for maintaining is changed, and greatly reduces maintenance cost; By the setting of O-ring seal, ensure that the sealing of stator; By to be designed to turning shaping by compressing for the stretching of stator can and Rotor can, make jacket wall have certain thickness, ensure its stability shielded.

2. this Novel shield pump, by fore bearing and rear bearing are all designed to cemented carbide bearing, avoids because of the less and problem such as frangible, not wear-resisting caused of graphite bearing hardness before.

3. the utility model scientific structure design is reasonable, and having that maintenance cost is low, advantages of good shielding performance, long service life, be easy to the advantage that realizes, is a kind of Novel shield pump with higher innovation.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A portion enlarged view of Fig. 1.

Reference character

Sealing eaves, 18-body before the 1-pump housing, 2-impeller, 3-front cover, 4-housing, 5-rear end cover, 6-rear bearing block, 7-rear bearing, 8-Rotor can, 9-rotor, 10-rotating shaft, 11-stator, 12-stator can, 13-fore bearing, 14-bolt, 15-seal groove, 16-O-ring seal, 17-.

Embodiment

Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.

A kind of Novel shield pump, by the pump housing 1, housing 4, impeller 2, rotating shaft 10, stator 11, rotor 9, stator can 12, Rotor can 8, front cover 3, rear end cover 5, fore bearing 13 and rear bearing 7 are formed, described impeller is positioned at the pump housing, the pump housing is fixed by the front end of front cover and housing, the rear end of housing is fixing by rear end cover sealing, the front end of described rotating shaft is connected with impeller by fore bearing, the rear end thereof of rotating shaft is arranged on the rear bearing that is positioned on rear end cover, described rotor is installed in rotating shaft, stator is had in the outer installment of rotor, the madial wall of stator is provided with stator can, the outer side wall of rotor is provided with Rotor can, its innovation is: be provided with a circle seal groove 15 on the ear end face of described front cover and on the ear end face of rear bearing block 6, O-ring seal 16 is provided with in each seal groove, the front end of stator can be arranged on front cover between O-ring seal and housing, front cover is connected by bolt 14 with housing, the rear end of stator can be arranged on rear bearing block between O-ring seal and rear end cover, it is shaping that described stator can and Rotor can are turning.

Described stator can is made up of body 18, front sealing eaves 17 and the rear sealing eaves that turning is shaping, on the front end outer side wall of body, laser beam welding seals eaves before being connected to, on the rear inside wall of body, laser beam welding seals eaves after being connected to, described front sealing eaves is arranged on front cover between O-ring seal and housing by bolt clamping, and described rear sealing eaves to be arranged on rear bearing block between O-ring seal and rear end cover.

Described fore bearing and rear bearing are cemented carbide bearing.

The utility model is by being to be clamped by stator can by bolt to make it be fixed on structure on stator madial wall by stator can before and the welded structural design of stator, once stator or stator can damage, just by demounting bolt, stator can and stator are separated, convenient for maintaining is changed, and greatly reduces maintenance cost; By the setting of O-ring seal, ensure that the sealing of stator; By to be designed to turning shaping by compressing for the stretching of stator can and Rotor can, make jacket wall have certain thickness, ensure its stability shielded.

Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.

Claims

1. a Novel shield pump, by the pump housing, housing, impeller, rotating shaft, stator, rotor, stator can, Rotor can, front cover, rear end cover, fore bearing and rear bearing are formed, described impeller is positioned at the pump housing, the pump housing is fixed by the front end of front cover and housing, the rear end of housing is fixing by rear end cover sealing, the front end of described rotating shaft is connected with impeller by fore bearing, the rear end thereof of rotating shaft is arranged on the rear bearing that is positioned on rear end cover, described rotor is installed in rotating shaft, stator is had in the outer installment of rotor, the madial wall of stator is provided with stator can, the outer side wall of rotor is provided with Rotor can, it is characterized in that: on the ear end face of described front cover and on the ear end face of rear bearing block, be provided with a circle seal groove, O-ring seal is provided with in each seal groove, the front end of stator can be arranged on front cover between O-ring seal and housing, front cover and housing are bolted, the rear end of stator can be arranged on rear bearing block between O-ring seal and rear end cover, it is shaping that described stator can and Rotor can are turning.

2. a kind of Novel shield pump according to claim 1, it is characterized in that: described stator can is made up of body, front sealing eaves and the rear sealing eaves that turning is shaping, on the front end outer side wall of body, laser beam welding seals eaves before being connected to, on the rear inside wall of body, laser beam welding seals eaves after being connected to, described front sealing eaves is arranged on front cover between O-ring seal and housing by bolt clamping, and described rear sealing eaves to be arranged on rear bearing block between O-ring seal and rear end cover.

3. a kind of Novel shield pump according to claim 1, is characterized in that: described fore bearing and rear bearing are cemented carbide bearing.