CN2289084Y

CN2289084Y - Leakless magnetic pump

Info

Publication number: CN2289084Y
Application number: CN 96238257
Authority: CN
Inventors: 张子传
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-21
Filing date: 1996-08-21
Publication date: 1998-08-26
Anticipated expiration: 2006-08-21

Abstract

The utility model belongs to a pump, particularly a non-leakage magnetic pump. The utility model comprises a pump casing 8, an impeller 4 which is positioned in the pump casing 8 and a shaft 22 which is connected with the impeller 4. The utility model is characterized in that the pump casing 8 is connected with an inner cover 15; the shaft 22 is arranged in the inner cover 15 and is connected with a bearing of the inner cover 15. An internal magnet 14 is fixed on the shaft 22; the outside of the inner cover 15 is provided with an outer casing 7 which is connected with the pump casing 8. An external magnet 17 is arranged between the inner cover 15 and the outer casing 7; the external magnet 17 is fixed on a rotation sleeve 12. The utility model has the characteristic of no leakage.

Description

Non-leakage magnetic pump

The utility model belongs to a kind of pump, particularly a kind of non-leakage magnetic pump.

Existing all kinds of liquid delivery pump structure is: a pump case of taking out of, entering the mouth is arranged, and the pump case inner bearing connects a pump shaft, is fixed with impeller on the pump shaft, and an end of pump shaft stretches out outside the pump case, is provided with seal ring (for motive sealing) between the two.Its shortcoming is to be difficult to seal easy leakage between pump shaft and the pump case, the frequent replacing of palpus Sealing in the using process, thereby the big cost of production height that causes of amount of maintenance.

The purpose of this utility model provides a kind of non-leakage magnetic pump of static seal, to overcome the leakage problem of liquid delivery pump.

Technical solution of the present utility model is: a kind of non-leakage magnetic pump, it comprises pump case 8, be positioned at the impeller 4 of pump case 8, with the axle 22 that impeller 4 joins, it is characterized in that: pump case 8 is connected to inner cover 15, and axle 22 is positioned at inner cover 15 and connects with its bearing, be fixed with internal magnet 14 on the axle 22, inner cover 15 outsides are provided with the outer cover 7 that joins with pump case 8, are provided with external magnet 17 between inner cover 15 and outer cover 7, and external magnet 17 is fixed on the pivoted housing 12.

The utility model compared with prior art owing to adopted the static seal mode, easily reaches fabulous sealing effect, does not have and leaks, and also can reduce amount of maintenance simultaneously, thereby reduce production costs.

Below in conjunction with the drawings and the specific embodiments, the utility model is further described:

Fig. 1 is the utility model concrete structure schematic representation.

As shown in Figure 1: 8 is pump case, pump case 8 and outer cover 7 Bolt Connection, and between accompanies pump cover 23 and inner cover 15 admittedly.Between pump case 8 and the pump cover 23, be respectively equipped with seal ring 5 and 9 (static seal) between pump cover 23 and the inner cover 15.By sliding bearing 11 (graphite bearing) axle 22 is bearing on inner cover 15 and the pump cover 23.Axle 22 termination is fixedly connected with key 10 and impeller 4, and is provided with nut 1 and prevents to come off.In impeller 4 outer ends a rotating ring 3 that rotates simultaneously with impeller 4 is housed, a stationary ring 2 is housed in pump case 8.On the axle 22 internal magnet fixed body 18 is housed, and fixing by strong 13.Internal magnet 14 is positioned at internal magnet fixed body 18 outer circumference and evenly distributes, and quantity is 4, and fixing by involucrum 19, also can select bonding way for use.A pivoted housing 12 is arranged between inner cover 15 and the outer cover 7, be bonded with external magnet 17 on the pivoted housing 12, quantity is 4.Circumference evenly distributes.During use, pivoted housing 12 is connected outer cover 7 and motor 20 termination Bolt Connection with the axle of motor 20 by key 16.When electrical power drove pivoted housing 12 rotations, because the sucking action of internal magnet 14 and external magnet 17 rotates axle 22 thereupon, but just impeller 4 rotations reached the purpose of carrying liquid.Because this device axis 22 is not direct and motor joins, by the attraction force transferring power of inside and outside magnet, and has been provided with the inner cover 15 of buffer action between the inside and outside magnet, thereby has solved leakage problem.

Claims

1, a kind of non-leakage magnetic pump, it comprises pump case [8], be positioned at the impeller [4] of pump case [8], with the axle [22] that impeller [4] joins, it is held to levy and is: pump case [8] is connected to inner cover [15], and axle [22] is positioned at inner cover [15] and connects with its bearing, be fixed with internal magnet [14] on the axle [22], inner cover [15] outside is provided with the outer cover [7] that joins with pump case [8], is provided with external magnet [17] between inner cover [15] and outer cover [7], and external magnet [17] is fixed on the pivoted housing [12].