CN203809311U - Novel magnetic pump - Google Patents

Novel magnetic pump Download PDF

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Publication number
CN203809311U
CN203809311U CN201420050878.1U CN201420050878U CN203809311U CN 203809311 U CN203809311 U CN 203809311U CN 201420050878 U CN201420050878 U CN 201420050878U CN 203809311 U CN203809311 U CN 203809311U
Authority
CN
China
Prior art keywords
pump
bearing
magnet rotor
cover
sliding bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420050878.1U
Other languages
Chinese (zh)
Inventor
马忠元
王沙利
欧志飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Bo Geman Fluid Device Manufacturing Co Ltd
Original Assignee
Chongqing Bo Geman Fluid Device Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Bo Geman Fluid Device Manufacturing Co Ltd filed Critical Chongqing Bo Geman Fluid Device Manufacturing Co Ltd
Priority to CN201420050878.1U priority Critical patent/CN203809311U/en
Application granted granted Critical
Publication of CN203809311U publication Critical patent/CN203809311U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a novel magnetic pump which comprises a pump body. A driving shaft is arranged in the pump body, fixed through a bearing bracket, sealed through a dustproof cover and connected with an outer magnetic rotor, an inner magnetic rotor is concentrically arranged inside the outer magnetic rotor, an isolating sleeve is arranged between the outer magnetic rotor and the inner magnetic rotor and is in sealing connection with a pump cover, the inner magnetic rotor is fixedly connected with a driven shaft, and a sliding bearing and a bearing sleeve are arranged between the pump cover and the driven shaft. The other end of the driven shaft is connected with an impeller, the pump body is respectively provided with a liquid inlet and a liquid outlet, a step is arranged at the connecting position between the pump cover and the sliding bearing , the step face is provided with a pin hole, an anti-rotation pin is arranged in the pin hole, and the other end of the anti-rotation pin is in abutting connection with the sliding bearing. The pump cover of the magnetic pump is simple in structure and reliable in positioning when the sliding bearing is fixed.

Description

Novel magnetic pump
Technical field
The utility model relates to a kind of pump, is specifically related to a kind of novel magnetic pump.
Background technique
Magnetic drive pump is a kind of fluid conveying machine, and it improves design mainly for centrifugal pump (it belongs to the one of vane pump).Conventionally, magnetic drive pump comprises that one forms the shield gasket cavity that can bear pressure by the pump housing, separation sleeve and connected element etc.There is a rotatable outer magnet rotor in the outside of this shield gasket cavity, and can synchronously rotate by the interior magnet rotor rotarily driving in this shield gasket cavity of this outer magnet rotor, the interior magnet rotor of shield gasket inside cavity is further impeller rotation, thereby realizes the pumping of convection cell.There is not motive sealing in the stator component that shield gasket cavity forms, and is used for the axle of impeller rotation and does not pass shield gasket cavity yet, thereby can ensure the zero leakage, pollution-free of magnetic drive pump.
But also there is many defects in domestic magnetic drive pump at present, such as: domestic location sliding bearing is to rely on auger shell keyhole on pump cover, connecting body is connected on pump cover, then locates sliding bearing by the projection of connecting body section.Adopt more than this structure a part (connecting body), to on pump cover, hole simultaneously, the compound mode that adds spring washer with screw fixes connecting body, this structure relative complex, loosening the dropping once screw is corroded, sliding bearing rotates with axle sleeve with connecting body, and the effect that bearing will lose causes pump not run well; The structural type of domestic existing separation sleeve is mainly as follows at present, the one, at separation sleeve bottom prismatic blade, when High Rotation Speed media impact will be reflected behind prismatic blade surface, between adjacent blades with in separation sleeve inner wall space, produce whirlpool, on the one hand medium just can enter driven shaft center hole after by prismatic blade multiple reflections, cause energy loss, the eddy current heat that separation sleeve produces on the other hand can not be taken away by medium in time, and high temperature causes magnet demagnetization and accelerated the vaporization of fed sheet of a media in separation sleeve.
The at present domestic form that adopts labyrinth seal when driving shaft and dust cover seal, in the time of axle High Rotation Speed, lubricant oil in bearing housing will be crossed bearing gland and dust cover outflow along beam warp, cause on the one hand lubricant oil waste, bring pollution in addition to surrounding environment; The another kind of structure that adopts oil sealing to seal; oil sealing inside has metal spring effect that rubber is close on axle body; oil in bearing housing is played a protective role; the relative axle of oil sealing is static; can produce heat and then accelerate the wearing and tearing of oil sealing with axle friction; in assembly process, because the degree of finish of axle body may cause not, oil sealing inner peripheral surface is impaired causes motive sealing to be lost efficacy in addition.
In a word, at present domestic magnetic drive pump defect is many.
Model utility content
For above-mentioned prior art, the utility model aims to provide a kind of novel magnetic pump, and it is simple in structure that the pump cover of this magnetic drive pump adopts in the time of fixing sliding bearing, and location is reliable.
In order to achieve the above object, the technical solution of the utility model is: a kind of novel magnetic pump, comprise the pump housing, in the described pump housing, be provided with driving shaft, described driving shaft is fixed by bearing bracket stand and is sealed by dust cover, described driving shaft connects outer magnet rotor, magnet rotor inner concentric is provided with interior magnet rotor outside, between described outer magnet rotor and interior magnet rotor, be provided with separation sleeve, described separation sleeve is sealedly connected with pump cover, described interior magnet rotor is fixedly connected with driven shaft, between described pump cover and driven shaft, be provided with sliding bearing and bearing housing, the described driven shaft the other end is connected with impeller, on the described pump housing, offer respectively liquid entering hole and liquid outlet, described pump cover is being provided with step with sliding bearing joint, described step surface is provided with pin-and-hole, in described pin-and-hole, stop pin is set, described stop pin the other end apical grafting sliding bearing.
Further, described separation sleeve bottom is provided with some blades, and described blade is streamlined.
Further, between described dust cover and driving shaft sealing, seal by O type circle.
Further, described bearing bracket stand adopts the angular contact ball bearing rigid drive shaft of arranging face-to-face.
The beneficial effects of the utility model: when adopting after this structure, owing to being provided with stop pin at pump cover step surface, processed corresponding groove at sliding bearing section, sliding bearing just can directly fix by stop pin, simple and reliable for structure.There is streamline blade in separation sleeve bottom, just can not produce whirlpool in separation sleeve bottom, can take away timely on the one hand the heat that separation sleeve produces, guarantee on the other hand the autobalance of rotor part axial force, thereby improved working life and the operation stability of pump.The structure of employing with O type circle dust cover, O type circle just stops that lubricant oil is along axle body to outward leakage like this, has effectively solved domestic pump industry bearing bracket stand Leakage.Magnetic drive pump bearing frame adopts the angular contact ball bearing of arranging face-to-face, is used for bearing the bidirectional axial force that in operation process, inside and outside magnet rotor produces mutually; In assembling and unloading process, also can produce two-way active force, therefore this structure increased bearing and motor working life and the stability of pump operation.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged diagram of A part in Fig. 1;
Fig. 3 is the structural representation of separation sleeve;
Fig. 4 is the enlarged diagram of B part in Fig. 1.
1, the pump housing; 2, impeller; 3, sliding bearing; 4, pump cover; 5, stop pin; 6, driven shaft; 7, interior magnet rotor; 8, separation sleeve; 9, outer magnet rotor; 10, blade; 11, contact ball bearing; 12, driving shaft; 13, bearing bracket stand; 14, O type circle; 15, bearing housing.
Embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
A kind of a kind of novel magnetic pump as Figure 1-4, comprise the pump housing 1, in the described pump housing 1, be provided with driving shaft 12, described driving shaft 12 is fixed and is sealed by dust cover by bearing bracket stand 13, described driving shaft 12 connects outer magnet rotor 9, magnet rotor 9 inner concentric are provided with interior magnet rotor 7 outside, between described outer magnet rotor 9 and interior magnet rotor 7, be provided with separation sleeve 8, described separation sleeve 8 is sealedly connected with pump cover 4, described interior magnet rotor 7 is fixedly connected with driven shaft 6, between described pump cover 4 and driven shaft 6, be provided with sliding bearing 3 and bearing housing 15, described driven shaft 6 the other ends are connected with impeller 2, on the described pump housing 1, offer respectively liquid entering hole and liquid outlet, described pump cover 4 is being provided with step with sliding bearing 3 joints, described step surface is provided with pin-and-hole, stop pin 5 is set in described pin-and-hole, described stop pin 5 the other end apical grafting sliding bearings 3.When adopting after this structure, owing to being provided with stop pin 5 at pump cover 4 step surfaces, sliding bearing 3 just can directly fix by stop pin 5, simple and reliable for structure.Compared to auger shell keyhole on pump cover 4 in the past, connecting body is connected on pump cover 4, then locates the structure of sliding bearing 3 by the projection of connecting body section, still less, installation time is shorter, and rate of fault is lower for this structure part used.
Be more preferably, described separation sleeve 8 bottoms are provided with some blades 10, and described blade 10 is streamlined.There is streamline blade 10 in separation sleeve 8 bottoms, in pump operation process, the medium of High Rotation Speed is by the runner being introduced between blade 10, medium will flow to separation sleeve 8 bottom centre positions along streamline blade 10, then guide impeller 2 ingress into by the center hole of driven shaft 6, just can not produce like this whirlpool in separation sleeve 8 bottoms, can take away timely the heat that separation sleeve 8 produces on the one hand, guarantee on the other hand the autobalance of rotor part axial force, thereby improved working life and the operation stability of pump.
Be more preferably, between described dust cover and driving shaft sealing, seal by O type circle 14.The structure of employing with O type circle 14 dust covers, dust cover inner ring and axle contact position have O type circle 14, and dust cover to axle, forms static seal state by screw fastened, O type circle 14 just stops that lubricant oil is along axle body to outward leakage like this, has effectively solved domestic pump industry bearing bracket stand 13 Leakages.
Best, described bearing bracket stand 13 adopts angular contact ball bearing 11 rigid drive shafts 12 of arranging face-to-face.Magnetic drive pump bearing frame 13 adopts the angular contact ball bearing 11 of arranging face-to-face, so-called layout is face-to-face known technology in industry, the Line of contact intersection point of two bearings installing is face-to-face in bearing inner side, and this mode is used for bearing interior magnet rotor 7 in operation process, the mutual bidirectional axial force producing of outer magnet rotor 9; In assembling and unloading process, also can produce two-way active force, therefore this structure increased bearing and motor working life and the stability of pump operation.
The technological scheme above the utility model embodiment being provided is described in detail, applied principle and the mode of execution of specific case to the utility model embodiment herein and set forth, above embodiment's explanation is only applicable to help to understand the utility model embodiment's principle; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and application area, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims (4)

1. a novel magnetic pump, comprise the pump housing, in the described pump housing, be provided with driving shaft, described driving shaft is fixed by bearing bracket stand and is sealed by dust cover, described driving shaft connects outer magnet rotor, magnet rotor inner concentric is provided with interior magnet rotor outside, between described outer magnet rotor and interior magnet rotor, be provided with separation sleeve, described separation sleeve is sealedly connected with pump cover, described interior magnet rotor is fixedly connected with driven shaft, between described pump cover and driven shaft, be provided with sliding bearing and bearing housing, the described driven shaft the other end is connected with impeller, on the described pump housing, offer respectively liquid entering hole and liquid outlet, it is characterized in that, described pump cover is being provided with step with sliding bearing joint, described step surface is provided with pin-and-hole, in described pin-and-hole, stop pin is set, described stop pin the other end apical grafting sliding bearing.
2. novel magnetic pump according to claim 1, is characterized in that, described separation sleeve bottom is provided with some blades, and described blade is streamlined.
3. novel magnetic pump according to claim 1, is characterized in that, between described dust cover and driving shaft sealing, seals by O type circle.
4. novel magnetic pump according to claim 1, is characterized in that, described bearing bracket stand adopts the angular contact ball bearing rigid drive shaft of arranging face-to-face.
CN201420050878.1U 2014-01-26 2014-01-26 Novel magnetic pump Expired - Fee Related CN203809311U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420050878.1U CN203809311U (en) 2014-01-26 2014-01-26 Novel magnetic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420050878.1U CN203809311U (en) 2014-01-26 2014-01-26 Novel magnetic pump

Publications (1)

Publication Number Publication Date
CN203809311U true CN203809311U (en) 2014-09-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420050878.1U Expired - Fee Related CN203809311U (en) 2014-01-26 2014-01-26 Novel magnetic pump

Country Status (1)

Country Link
CN (1) CN203809311U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564790A (en) * 2015-01-07 2015-04-29 丹东克隆先锋泵业有限公司 Automatic driving shaft sealing magnetic pump
CN105508260A (en) * 2015-12-18 2016-04-20 安徽南方化工泵业有限公司 Axial balanced type metal magnetic drive pump
CN107762879A (en) * 2017-11-03 2018-03-06 安徽南方化工泵业有限公司 A kind of high pressure resistant metal magnetic pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564790A (en) * 2015-01-07 2015-04-29 丹东克隆先锋泵业有限公司 Automatic driving shaft sealing magnetic pump
CN105508260A (en) * 2015-12-18 2016-04-20 安徽南方化工泵业有限公司 Axial balanced type metal magnetic drive pump
CN107762879A (en) * 2017-11-03 2018-03-06 安徽南方化工泵业有限公司 A kind of high pressure resistant metal magnetic pump
CN107762879B (en) * 2017-11-03 2019-08-13 安徽南方化工泵业有限公司 A kind of high pressure resistant metal magnetic pump

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140903

Termination date: 20150126

EXPY Termination of patent right or utility model