CN205876732U

CN205876732U - Firm durable magnetic drive pump

Info

Publication number: CN205876732U
Application number: CN201620714130.6U
Authority: CN
Inventors: 刘铭
Original assignee: JIANGSU WU XIN PUMP INDUSTRY Co Ltd
Current assignee: JIANGSU WU XIN PUMP INDUSTRY Co Ltd
Priority date: 2016-07-07
Filing date: 2016-07-07
Publication date: 2017-01-11
Anticipated expiration: 2026-07-07

Abstract

The utility model relates to a firm durable magnetic drive pump, including pump case, impeller, baffle, double -deck separation sleeve, outer magnet rotor, interior magnet rotor and pump shaft, the pump shaft is trisection clipping edge structure how much with the inlayer separation sleeve connection ends of double -deck separation sleeve, and pump shaft periphery trisection axial is equipped with three R type granule and passes through the groove rapidly, the connection ends of how much trisection clipping edge structures of pump shaft has guaranteed effectively that the pump shaft is fixed, steady and firm in how much the same downthehole synchronization of trisection of inlayer separation sleeve, be equipped with trisection axial R type granule rapidly through the groove at the circumference of axle, a small amount of tiny stereoplasm granule gets into can be rapidly from arranging in the three R type groove to the low pressure discharge of suction eye between inlayer separation sleeve and interior magnet rotor clearance, avoid inlayer separation sleeve fish tail or draw and wear out the sealed effect of bad double -deck separation sleeve, cause the badly damaged of magnetic drive pump, effectively increase heat radiating area, reduce the pump shaft temperature, improve magnetic drive pump's life.

Description

A kind of firm durable magnetic drive pump

Technical field

This utility model relates to a kind of magnetic drive pump field, more so relates to a kind of firm durable magnetic drive pump.

Background technology

Along with the appearance of environmental legislation of increasingly stringent and the mankind protect the continuous enhancing of environmental consciousness, magnetic drive pump is by extensively It is applied to the every field such as petrochemical industry, Coal Chemical Industry, metallurgy, pharmacy and electric power；Magnetic drives pump structure is: impeller, axle, interior Magnet rotor synchronous axial system, the magnetic coupling pump shaft of magnetic drive pump is to be lubricated cooling with the medium carried, if medium In have hard particles, vacillate between two friction surfaces, friction surface produce high contact stress, grit and friction High contact stress between surface makes the friction surface of ductile metal produce plastic deformation or fatigue damage, it is easy to cause isolation Set scratches or scratches；When there is EDGE CONTACT, lacking the situation such as lubricating oil or rupture of oil film, abrasive wear causes diameter of axle precision to be lost Lose, make sliding bearing performance drastically deteriorate before life expectancy；Rupturing or when drastically oil starvation at lubricating oil film, friction is anxious Increasing severely big, bearing temperature raises further, forms vicious cycle easily " seizing ", and bearing thoroughly damages；Magnetic drive pump axial force is By hydraulic pressure balanced way autobalance, in actual motion, if pump shaft with coordinate unstable, firm bottom separation sleeve, hold very much The hydraulic resistance balance of destructible magnetic drive pump, makes pump bearing be subject to big radial and axial power to cause pump shaft to damage.

Utility model content

This utility model purpose is that the one provided to overcome the deficiencies in the prior art consolidates durable magnetic drive pump, Having rational in infrastructure, technique is convenient, smooth running, and efficiency is high, service life is long, good in economic efficiency beneficial effect of Denging.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of firm durable magnetic drive pump, including The internal layer of pump case, impeller, dividing plate, Double-layered isolation casing, outer magnet rotor, interior magnet rotor and pump shaft, described pump shaft and Double-layered isolation casing It is geometry trisection clipping edge structure that separation sleeve connects end, and it is fast that described pump shaft periphery trisection is axially arranged with three R type granules Speed passes through groove.

Improving further as this utility model, described geometry trisection clipping edge structure is positioned at the axle center of described pump shaft Place.

Improve further as this utility model, the described geometry axial a length of amm of trisection clipping edge structure.

Improving further as this utility model, the groove width that described R type granule runs through groove is bmm.

Improving further as this utility model, described pump shaft material is carbofrax material.

Improving further as this utility model, described Double-layered isolation casing material is carbon fiber or glass fibre filled Steel is moulded.

Improving further as this utility model, described interior magnet rotor material is samarium-cobalt alloy.

Improving further as this utility model, described outer magnet rotor material is samarium ferroboron.

Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that

The one of this utility model scheme consolidates durable magnetic drive pump, and pump shaft coordinates with the end of internal layer separation sleeve for several What trisection clipping edge structure, has been effectively ensured pump shaft and has fixed, steadily in the identical geometry trisection hole inter-sync of internal layer separation sleeve Firmly；Circumference at axle is provided with trisection axial R type granule and runs through groove, the most tiny hard particles enter internal layer every Discharge away from the low pressure of suction eye from draining into from three R type grooves rapidly between set and interior magnet rotor gap；Avoid internal layer every Scratch from set or scratch, destroying Double-layered isolation casing sealing function, cause the badly damaged of magnetic drive pump；Effective increasing heat radiation area, Reduce pump shaft temperature, improve the service life of magnetic drive pump, extend the long-term operation of whole process units, reduce and produce fortune Row cost；Have energy-saving and emission-reduction, operate steadily, the beneficial effect such as environmental benefit is good and good in economic efficiency.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings technical solutions of the utility model are described further:

Accompanying drawing 1 consolidates durable magnetic drive pump structural representation for one of the present utility model；

Accompanying drawing 2 is the pump shaft structure schematic diagram of a kind of firm durable magnetic drive pump of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.

One described in the utility model as shown in accompanying drawing 1,2 consolidates durable magnetic drive pump structural representation, including Pump case 1, impeller 2, dividing plate 3, Double-layered isolation casing 4, outer magnet rotor 5, interior magnet rotor 6 and pump shaft 7, pump shaft 7 and Double-layered isolation casing 4 It is geometry trisection clipping edge structure 8 that internal layer separation sleeve connects end, and geometry trisection clipping edge structure 8 is positioned at pump shaft 7 axle center, several What trisection clipping edge structure 8 axial length is amm, and pump shaft 7 periphery trisection is axially arranged with three R type granules and runs through groove It is bmm that 9, R type granules run through the groove width of groove 9；Pump shaft 7 material is carbofrax material；Double-layered isolation casing 4 material is carbon fiber Or glass fibre filled steel moulds；Interior magnet rotor 6 material is samarium-cobalt alloy；Outer magnet rotor 5 material is samarium ferroboron.

It is geometry trisection clipping edge structure that pump shaft coordinates with the end of separation sleeve, pump shaft has been effectively ensured at internal layer separation sleeve Identical geometry trisection hole inter-sync fix, steadily and firmly；Circumference at axle is provided with trisection axial R type granule and leads to rapidly Crossing groove, the most tiny hard particles enters and can drain into from three R type grooves rapidly between internal layer separation sleeve and interior magnet rotor gap Discharge at the low pressure of suction eye；Avoid internal layer separation sleeve scratch or scratch, destroy Double-layered isolation casing sealing function, cause magnetic Power pump badly damaged；Effectively increasing heat radiation area, reduction pump shaft temperature, improve the service life of magnetic drive pump, extend whole The long-term operation of individual process units, reduces production run cost；Have energy-saving and emission-reduction, operate steadily, environmental benefit is good and warp Help profitable beneficial effect such as grade.

Below it is only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limit System；All employing equivalents or equivalence are replaced and the technical scheme that formed, all fall within this utility model rights protection scope it In.

Claims

1. a firm durable magnetic drive pump, including pump case, impeller, dividing plate, Double-layered isolation casing, outer magnet rotor, interior magnet rotor And pump shaft, it is characterised in that it is geometry trisection clipping edge knot that described pump shaft is connected end with the internal layer separation sleeve of Double-layered isolation casing Structure, described pump shaft periphery trisection is axially arranged with three R type granules and runs through groove.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described geometry trisection clipping edge Structure is positioned at the axle center of described pump shaft.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described geometry trisection clipping edge The axial a length of amm of structure.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described R type granule leads to rapidly The groove width crossing groove is bmm.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described pump shaft material is carbonization Silicon materials.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described Double-layered isolation casing material Mould for carbon fiber or glass fibre filled steel.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described interior magnet rotor material is Samarium-cobalt alloy.

One the most according to claim 1 consolidates durable magnetic drive pump, it is characterised in that described outer magnet rotor material is Samarium ferroboron.