CN201982312U

CN201982312U - Metal magnetic pump

Info

Publication number: CN201982312U
Application number: CN2011200775789U
Authority: CN
Inventors: 王友宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-23
Filing date: 2011-03-23
Publication date: 2011-09-21
Anticipated expiration: 2021-03-23

Abstract

A metal magnetic pump consists of a pump body, a gasket, a thrust bearing. In an inner cavity formed by a pump body and a midbody, the left end of a pump shaft is provided with a vane fixed by a vane nut. A pump shaft in an inner cavity of the midbody is provided with the thrust bearing and two shaft sleeves. A sliding bearing is sleeved on the outer ring of either of the shaft sleeves. The right end of the midbody is connected with a suspending frame. An inner coupling is arranged on a pump shaft in an inner cavity of the suspending frame and the inner coupling is tightly fastened on the pump shaft. An isolation sleeve is sleeved on the inner coupling. A screw penetrates an outer coupling to be connected with the shaft. Two sets of bearings are arranged in inner cavities on the right ends of the couplings, and the bearings are sealed by bearing covers. The metal magnetic pump has the advantages of being small in volume, moment force and eddy current; and being reliable. A driving transmission system has no rigid connection. The pump shafts and a motor shaft are coupled by magnetic power in soft non-contact connection. Essentially, no mechanical friction exists between the end face of the thrust bearing and the end face of the sliding bearing during operation. Maintenance period is long.

Description

The metal magnetic drive pump

Technical field:

The utility model relates to a kind of metal magnetic drive pump, it is applicable to industries such as oil, chemical industry, pharmacy, smelting, plating, environmental protection, food, video display developing and printing, water treatment, national defence, is the ideal equipment of carrying no solid particle and fibrous inflammable, explosive, volatilization, poisonous, rare valuable liquid and various corrosive liquid body mediums.

Background technique:

Traditional magnetic drive pump vibration is big, and noise is big, and sealability can not get ensureing that the phenomenon through regular meeting's appearance " run, drip, leak " has not only reduced productivity, causes the pollution to environment, and has wasted resource.The wear rate height of pump in use, the rate of fault height, the blanking time of maintenance is short, has increased cost.

Summary of the invention:

Purpose of the present invention will provide a kind of metal magnetic drive pump exactly, and it can overcome the existing problem of above existing product.The purpose of this utility model is achieved in that the metal magnetic drive pump, is made up of the pump housing, sealing gasket, thrust bearing, it is characterized in that: the left end of pump shaft is provided with impeller in the inner chamber that the pump housing and middle body form, and is locked by impeller nut; The pump housing of impeller left end and pump housing contacting point is provided with seal ring, and the pump housing and middle body contacting point are provided with sealing gasket; Be disposed with thrust bearing, two axle sleeves from left to right on the pump shaft in described in the intracoelomic cavity, the outer ring of axle sleeve is with sliding bearing; The right-hand member of middle body links to each other with suspension, pump shaft in the inner chamber of suspension be provided with in coupling and by nut check on pump shaft, be with separation sleeve on the interior coupling, and by screw put seal ring be fixed on the body right side, outer coupling is passed by screw and spool connects; Be provided with two supplementary bearings in the inner chamber of described coupling right-hand member, and seal by bearing cap.The utility model is reasonable in design, and technology advanced person has totally-enclosedly, do not have to leak corrosion resistant characteristics.Adopt unique intensive magneticfocusing to draw the coupled structure that pushes away magnetic circuit, it is little to have a volume, and moment is little, eddy current is little, good reliability.Power transmission system does not have rigidity to connect, and pump shaft and motor shaft are by the magnetic force coupling, belong to contactless flexibly connecting, adopt sliding supported condition, high concentricity and perpendicularity are arranged, during pump operation, except that the vibration and noise of motor itself, pump does not have noise basically.Have unique axial force balance system, thrust bearing end face and sliding bearing end face are in operation and do not have mechanical friction substantially, and wear rate is low, and rate of fault is low, the advantage that maintenance period is long.It is to replace motive sealing with static seal, makes pump chamber be in complete sealing state, has cancelled the axle envelope, utilizes the magnetic force coupling to drive indirectly, has eliminated the worry of " run, drip, leak " fully, has solved problem of environment pollution caused, has improved productivity.

Description of drawings:

Fig. 1 is the utility model structural representation:

1. the pump housing, 2. impeller nut, 3. seal ring, 4. impeller, 5 sealing gaskets, 6. thrust bearing, 7. sliding bearing, 8. axle sleeve, 9. middle body, 10. pump shaft, 11. seal rings, 12. separation sleeves, 13. outer coupling, 14. interior coupling, 15. nuts, 16,17. bearings, 18. bearing glands, 19., 20. coupling, 21. carriages, 22. suspensions.

Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing;

The metal magnetic drive pump is made up of the pump housing 1, sealing gasket 5, thrust bearing 6, it is characterized in that: the left end of pump shaft 10 is provided with impeller 4 in the inner chamber that the pump housing 1 and middle body 9 form, and by impeller nut 2 lockings; The pump housing 1 of impeller 4 left ends and the pump housing 1 contacting point is provided with seal ring 3, and the pump housing 1 is provided with sealing gasket 5 with middle body 9 contacting points; Be disposed with thrust bearing 6, two axle sleeves 8 on the pump shaft 10 in described in body 9 inner chambers from left to right, the outer ring of axle sleeve 8 is with sliding bearing 7; The right-hand member of middle body 9 links to each other with suspension 22, pump shaft 10 in the inner chamber of suspension 22 be provided with in coupling 14 and by nut check on pump shaft 10, be with separation sleeve 12 on the interior coupling 14, and by screw put seal ring 11 be fixed on body 9 right sides, outer coupling 13 is passed with spools 19 by screw and connects; Be provided with two supplementary bearings 17 in the inner chamber of described coupling 20 right-hand members, and by bearing cap 18 sealings.During concrete enforcement, bearing of the present utility model cools off and be lubricated is to finish by the medium that is transferred, so absolute prohibition idle running also will be avoided the no load running that is caused when power failure back in way starts at work simultaneously; In the medium that is transferred, if contain solid particle, the inlet of pump must add filter screen, as contains the ferromagnetics particulate, need add magnetic filter; The Environmental Conditions of pump should be less than 40 ℃, and electric machine temperature rise must not surpass 75 ℃, and medium that is transferred and temperature thereof should be less than 100 ℃; Carry suction pressure to be not more than 0.2MPa, maximum service pressure 1.6MPa, density is not more than 1600kg/m ³Do not contain solid particle and fiber medium; When liquid is the medium of easy crystalline deposit, should in time clean after the use, drain hydrops in the pump.When starting electrical machinery, open the liquid outlet pressure gauge, slowly open the valve on the drain pipe, be adjusted to the operating mode that needs, pump generally should not be lower than long-time running under 30% design discharge, if must use under this condition, should on the fluid pipeline, bypass tube be installed, make the flow of pump reach the regulation using scope, running check motor bearings and temperature rise situation, bearing temperature raises should be above 75 ℃, do not allow to regulate flow, to avoid cavitation with the valve on the liquid inlet pipe; When closing pump, slowly close the valve on the drain pipe, the mounting point of pump is lower than liquid level, also will close the valve on the liquid inlet pipe, and closes various instrument, powered-down; When being lower than the liquid solidifying point as ambient temperature, put the liquid in the clean pump, in case bursting by freezing, pump is stopped using for a long time, except that the liquid in the pump being put only, also will rinse well with clear water, and especially closed chamber will conscientiously be rinsed well.The pump Material Selection is the difference according to fed sheet of a media, can select the metallic material manufacturing of the various different trades mark for use.

Claims

1. the metal magnetic drive pump is made up of the pump housing (1), sealing gasket (5), thrust bearing (6), it is characterized in that: the left end of pump shaft (10) is provided with impeller (4) in the inner chamber that the pump housing (1) and middle body (9) form, and is locked by impeller nut (2); The pump housing (1) of impeller (4) left end and the pump housing (1) contacting point is provided with seal ring (3), and the pump housing (1) is provided with sealing gasket (5) with middle body (9) contacting point; Be disposed with thrust bearing (6), two axle sleeves (8) from left to right on the pump shaft (10) in described in body (9) inner chamber, the outer ring of axle sleeve (8) is with sliding bearing (7); The right-hand member of middle body (9) links to each other with suspension (22), pump shaft (10) in the inner chamber of suspension (22) be provided with interior coupling (14) and by nut check on pump shaft (10), be with separation sleeve (12) on the interior coupling (14), and put seal ring (11) by screw and be fixed on middle body (9) right side, outer coupling (13) is passed with axle (19) by screw and connects; Be provided with two supplementary bearings (17) in the inner chamber of described coupling (20) right-hand member, and seal by bearing cap (18).