CN208669608U - A kind of energy-saving multistage pump - Google Patents

Abstract

The utility model discloses a kind of energy-saving multistage pumps, including motor and the pump housing, motor is mounted on the base, and motor inner rotor shaft connects pump shaft by shaft coupling, pump shaft is fixed on pump body by front and back bearings, pump shaft leading portion is equipped with balancing frame, and pump shaft middle section is equipped with impeller, and pump housing front end is equipped with water inlet, pump housing rear end is equipped with water outlet, anti-sand cover is equipped with below water inlet, anti-sand cover end connects sewage pipe front end, and sewage pipe rear end connects water outlet；This energy-saving multistage pump, motor are mounted on the base, run smoothly, shake is smaller, and low noise, Bearing inner is equipped with axle envelope, axle envelope uses soft packing seal, and sealing is safe and reliable, can quickly make to form vacuum in the pump housing, and water absorbing capacity is strong, easy to maintenance quick, front and back bearings are designed with grease adding mouth, are got to lubricating grease inside front and back bearings by refueling nozzle, effectively bearing portions can be lubricated, frictional force is reduced, more energy saving, the service life is longer.

Description

A kind of energy-saving multistage pump

Technical field

The utility model relates to energy-saving environmental protection device technical field, specially a kind of energy-saving multistage pump.

Background technique

Multistage pump can be used for many industrial departments such as petroleum, chemical industry, machinery, mine, light industry, medicine and food, in industry More but traditional multistage pump is applied in many techniques of production, generally existing larger problem is pumped if energy conversion efficiency is low It is poorly sealed between body and bearing, gas leakage is caused, while impeller winds vulnerable to sundries and blocks, and causes pump housing failure, subsequent dimension It repairs at high cost.

Utility model content

The purpose of this utility model is to provide a kind of energy-saving multistage pumps, have energy conversion efficiency height, water Sha Kefen From sealing is tight between the pump housing and bearing closes, and frictional force is small between pump shaft and bearing, and the good advantage of versatility solves existing skill The problems in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of energy-saving multistage pump, including motor and The pump housing, the motor are threadedly secured on pedestal, and the motor inner rotor shaft is threadably secured shaft coupling, described Axis device is threadably secured pump shaft, and the pump shaft is fixed on pump body by front and back bearings, and the pump shaft leading portion is equipped with flat Weigh disk, and pump shaft middle section is equipped with impeller, and the pump housing top front offers water inlet, and pump housing top rear portion is equipped with water outlet, institute It states and is equipped with anti-sand cover below water inlet, the anti-sand cover end connects sewage pipe front end, and the sewage pipe rear end connects with water outlet It is logical.

Preferably, axle envelope is equipped with before and after the bearing.

Preferably, the Bearing outer is equipped with grease adding mouth.

Preferably, the inlet and outlet are flange arrangement.

Preferably, the anti-sand cover below the water inlet is detachable structure.

Preferably, the motor uses threephase asynchronous machine.

Preferably, the pump shaft is hollow structure.

Compared with prior art, the beneficial effects of the utility model are as follows: this energy-saving multistage pump, motor are different using three Motor is walked, threephase asynchronous machine structure is simple, and easily manufactured, runnability is good, and can save a variety of materials, cheap, phase It is more energy saving than other motors, it is equipped with axle envelope before and after bearing, keeps the sealing effect of the pump housing more preferable, pumpage is stronger, bearing Outside is equipped with grease adding mouth, lubricating grease can be got to Bearing inner by refueling nozzle, can play good lubricant effect, together When also enhance the leakproofness of the pump housing, inlet and outlet are flange arrangement, stronger with the connection of external equipment, water inlet The anti-sand cover of mouthful lower section, is detachable structure, anti-sand cover use for a long time will cause malformation, and filter effect is bad, can be into Row replacement, the use of anti-sand cover can make some big particulate matters be deposited to sewage pipe, and sewage pipe and water outlet form syphon structure, The impurity in sewage pipe is discharged by siphon, and without impeller, keep the resistance of impeller smaller, the utilization rate of energy is higher, Pump shaft is hollow structure, while proof strength, makes pump shaft weight saving, more energy saving.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of energy-saving multistage pump of the utility model；

Fig. 2 is a kind of overall structure diagram of the bearing of energy-saving multistage pump of the utility model；

Fig. 3 is a kind of anti-sand cover overall structure diagram of energy-saving multistage pump of the utility model；

Fig. 4 is a kind of water inlet top view of energy-saving multistage pump of the utility model；

Fig. 5 is a kind of side view of the pump shaft of energy-saving multistage pump of the utility model.

Explanation: 1 motor, 2 pedestals, 3 grease adding mouths, 4 anti-sand covers, 5 water inlets, 6 sewage pipes, 7 water outlets is marked in figure Mouth, 8 axle envelopes, 9 pump housings, 10 impellers, 11 balancing frames, 12 bearings, 13 shaft couplings, 14 pump shafts.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Embodiment, a kind of energy-saving multistage pump, including motor 1 and the pump housing 9, motor 1 use threephase asynchronous machine, and three is different Step electric machine structure is simple, and easily manufactured, runnability is good, and can save a variety of materials, cheap, more compared to other motors Energy conservation, motor 1 are threadedly secured on pedestal 2, guarantee that the operation of motor 1 is more steady, 1 inner rotor shaft of motor passes through screw thread Closed coupling 13, shaft coupling 13 are threadably secured pump shaft 14, and pump shaft 14 is hollow structure, while proof strength, make to pump 14 weight saving of axis, more energy saving, motor 1 and the pump housing 9 are detachable structure, facilitate installation, and pump shaft 14 is fixed by bearing 12 Inside the pump housing 9, it is equipped with axle envelope 8 before and after bearing 12, keeps the sealing effect of the pump housing 9 more preferable, pumpage is stronger, outside bearing 12 Portion is equipped with grease adding mouth 3, can get to inside bearing 12 lubricating grease by refueling nozzle, can play good lubricant effect, Also enhancing the leakproofness of the pump housing 9 simultaneously, 14 leading portion of pump shaft is equipped with balancing frame 11, can effectively reduce water hammer effect, the pump housing is protected, The vibration generated when impeller 10 rotates is balanced simultaneously, and 14 middle section of pump shaft is equipped with impeller 10, and the pump housing offers water inlet outside 9 front end 5,9 rear end of pump housing outside is equipped with water outlet 7, and water inlet 5 and water outlet 7 are flange arrangement, and the connection with external equipment is more Securely, anti-sand cover 4 is equipped with below water inlet 5, anti-sand cover 4 is detachable structure, and 4 long-time use of anti-sand cover will cause structure change Shape, filter effect is bad, can be replaced, and the use of anti-sand cover 4 can make some big particulate matters be deposited to sewage pipe 6, blowdown 6 rear end of pipe and water outlet 7 are connected, and sewage pipe 6 and water outlet 7 form syphon structure, are arranged the impurity in sewage pipe 6 by siphon Out, and without impeller 10, keep the resistance of impeller 10 smaller, the utilization rate of energy is higher.

Working principle: this energy-saving multistage pump, first staff connect motor power, by water inlet pipe and outlet pipe point Water inlet 5 and water outlet 7 are not bolted, opens the power switch on motor 1, motor 1 works, and motor 1 passes through shaft coupling Device 13 drives pump shaft 14 to rotate, and pump shaft 14 drives balancing frame 11 and impeller 10 to rotate, and impeller 10 will be evacuated inside the pump housing 9, Water is flowed into from water inlet 5, filters by anti-sand cover 4, impurity is discharged from sewage pipe 6, and filtered water passes through the band of impeller 10 It is dynamic to be discharged to outlet pipe from water outlet 7,1 power supply of motor is closed after the completion of drawing water.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms；Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein, and should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of energy-saving multistage pump, including motor (1) and the pump housing (9), it is characterised in that: the motor (1) is solid by screw thread It is scheduled on pedestal (2), motor (1) inner rotor shaft is threadably secured shaft coupling (13), and the shaft coupling (13) passes through It is threadedly coupled pump shaft (14), the pump shaft (14) is fixed on inside the pump housing (9) by bearing (12), on pump shaft (14) leading portion Equipped with balancing frame (11), pump shaft (14) middle section is equipped with impeller (10), and the pump housing (9) top front offers water inlet (5), pumps Body (9) top rear portion is equipped with water outlet (7), is equipped with anti-sand cover (4) below the water inlet (5), and anti-sand cover (4) end connects Sewage pipe (6) front end is connect, sewage pipe (6) rear end and water outlet (7) are connected.

2. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: be equipped with axis before and after the bearing (12) It seals (8).

3. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: be equipped with lubrication outside the bearing (12) Rouge filler (3).

4. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: the water inlet (5) and water outlet (7) It is flange arrangement.

5. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: the sand prevention below the water inlet (5) It is detachable to cover (4).

6. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: the motor (1) is using phase asynchronous Motor.

7. a kind of energy-saving multistage pump according to claim 1, it is characterised in that: the pump shaft (14) is hollow structure.