CN215170837U - Canned motor pump of airtight compact structure - Google Patents

Abstract

The utility model discloses a canned motor pump with a closed structure, which relates to the field of mechanical equipment, and comprises a pump shell provided with a water inlet and a water outlet, wherein the bottom of the pump shell is fixedly connected with a supporting base; rotor chamber center department is equipped with the horizontally pivot, can dismantle in the pivot and be connected with the rotor, the shield can be dismantled and connect in the pivot, the shield is located the rotor is kept away from one side of water inlet, the shield deviates from one side of rotor can be dismantled and be connected with and be located driving motor in the stator cavity, this equipment structure is compact for transmission efficiency is higher.

Description

Canned motor pump of airtight compact structure

Technical Field

The utility model relates to the field of mechanical equipment, especially, relate to a canned motor pump of airtight type compact structure.

Background

The main components of the canned motor pump are an impeller and a volute of the centrifugal pump, and the main body of the canned motor pump and a driving machine are both enclosed in a pressure container filled with a water pumping medium, and the pressure container is provided with static seal but no traditional rotary pump dynamic seal, and the static seal is easier to realize complete seal than the dynamic seal; canned pumps are generally less efficient than single-ended mechanically sealed centrifugal pumps and are roughly equivalent to double-ended mechanically sealed centrifugal pumps.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model provides a canned motor pump of airtight type compact structure, simple structure and design comparatively compact, reduce circulation route and time of liquid in the pump, be suitable for some to have the equipment use of requirement to volume and efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a kind of canned type compact canned motor pump, including the pump casing with water inlet and water outlet, the bottom of the said pump casing connects with the supporting base fixedly, there is a shielding can in the said pump casing, the said shielding can separates the space in the said pump casing into two parts of stator cavity and rotor cavity; rotor chamber center department is equipped with the horizontally pivot, can dismantle in the pivot and be connected with the rotor, the shield can be dismantled and connect in the pivot, the shield is located the rotor is kept away from one side of water inlet, the shield deviates from one side of rotor can be dismantled and be connected with and be located driving motor in the stator cavity.

Through adopting above-mentioned technical scheme, simple structure is compact, and liquid change efficiency is higher.

Preferably, the outer wall of the driving motor and the inner wall of the stator cavity are provided in polygonal shapes matched with each other.

Preferably, the rotor is including rotating the connection and being in epaxial carousel and fixed connection are in the carousel is kept away from pivot side epaxial change ring, sunken on the axle wall of carousel has a plurality of evenly distributed's recess, the change ring with the shield cover laminating.

Preferably, the swivel is made of metal, and a plurality of stripes which are horizontal to the axis of the swivel are recessed on the outer shaft wall of the swivel.

Preferably, the shield cover includes shielding dish and fixed connection and is in the shielding dish is kept away from shield ring on a rotor side, the outer axial wall of shielding dish with the inner wall size shape in rotor chamber matches, the shield ring is kept away from the one end of rotor be formed with the shielding lid that the pivot matches.

Preferably, the pump shell comprises a motor pump shell and a rotor pump shell which are bounded by the shielding cover, a plurality of bulges are outwards formed on the outer shaft wall of the rotor pump shell, a plurality of horizontal screws are connected to the inner threads of the bulges in a threaded manner, and a plurality of threaded holes corresponding to the screws are formed in the contact surface of the motor pump shell and the rotor pump shell.

Preferably, the bottom of the supporting base is fixedly connected with a rubber shockproof salient point.

Compared with the prior art, the utility model discloses possess following beneficial effect: the rotor has a simpler structure and is convenient to maintain and install, so that the whole canned motor pump has smaller and compact volume and is suitable for equipment with requirements on the volume; due to the limitation of equipment, the path of liquid movement is short, the control is quick, and the use efficiency is improved.

Drawings

The invention is described in the following with reference to the accompanying drawings:

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of a motor pump housing;

FIG. 3 is a cross-sectional view of a rotor pump casing;

FIG. 4 is a cross-sectional view of the motor pump housing;

FIG. 5 is a side view of the shield;

labeled as: 1. a water inlet; 2. a water outlet; 3. a pump housing; 4. a support base; 5. a shield case; 6. A stator cavity; 7. a rotor cavity; 8. a rotating shaft; 9. a rotor; 10. a drive motor; 11. a turntable; 12. rotating the ring; 13. a groove; 14. stripes; 15. a shielding plate; 16. a shield ring; 17. a shield cover; 18. a motor pump housing; 19. a rotor pump housing; 20. a protrusion; 21. a screw; 22. a threaded hole; 23. and shock-proof bumps.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A kind of closed type shield pump with compact structure, as shown in figure 1-3, including the pump body 3 equipped with water inlet 1 and water outlet 2, the bottom of the pump body 3 connects with the supporting base 4 fixedly, there is a shielding cage 5 in the pump body 3, the shielding cage 5 separates the space in the pump body 3 into two parts of stator cavity 6 and rotor cavity 7; rotor chamber 7 center department is equipped with horizontally pivot 8, can dismantle in pivot 8 and be connected with rotor 9, and connection can be dismantled in pivot 8 to shield cover 5, and shield cover 5 is located one side that water inlet 1 was kept away from to rotor 9, and one side that shield cover 5 deviates from rotor 9 can be dismantled and be connected with the driving motor 10 that is located stator chamber 6.

As shown in fig. 1-3, the canned motor pump is formed by connecting a pump and a motor, wherein a rotor 9 of the motor and an impeller of the pump are fixed on the same shaft, the rotor 9 of the motor is separated from a stator by a canned sleeve, the rotor 9 runs in a conveyed medium, and the power of the rotor 9 is transmitted to the rotor 9 through a stator magnetic field to realize the control of liquid in the rotor; when using in this application, install rotor 9 and shield cover 5 on pivot 8 in turn, fix it in rotor chamber 19 from this, make it can be at 19 internal rotations in rotor chamber, rethread shield cover 5 is connected with driving motor 10, overlaps pump case 3 outside whole equipment, makes it become a whole, and liquid flows into and flows out from water inlet 1 and delivery port 2, accomplishes the circulation in rotor chamber 19, realizes the function of canned motor pump.

As shown in fig. 1 and 4, the outer wall of the driving motor 10 and the inner wall of the stator cavity 6 are provided in polygonal shapes that match each other.

As shown in fig. 1 and 4, in order to make the connection between the pump housing 3 and the driving motor 10 more compact, the surfaces of the pump housing that are in contact with each other are arranged to be uneven and have polygonal cross sections, and if the surfaces are arranged to be smooth and cylindrical, the connection between the driving motor 10 and the inside of the pump housing 3 may be unstable when the driving motor rotates, and the polygonal shape makes the two parts difficult to generate relative displacement, so that the use of the canned motor pump is more stable.

As shown in fig. 3, the rotor 9 includes a rotary disk 11 rotatably connected to the rotating shaft 8 and a rotary ring 12 fixedly connected to a side surface of the rotary disk 11 far from the rotating shaft 8, a plurality of uniformly distributed grooves 13 are recessed on a shaft wall of the rotary disk 11, and the rotary ring 12 is attached to the shielding case 5.

As shown in fig. 3, when the driving motor 10 is started, a magnetic field is released to affect the rotating ring 12 to move, the rotating ring 12 drives the rotating disc 11 to rotate on the rotating shaft 8, and when the rotating disc 11 rotates, the groove 13 on the shaft wall can drive the liquid to move, similar to a water wheel, so that the liquid flows in the rotor cavity 7, flows in from the water inlet 1 and then flows out from the water outlet 2 under the action of the rotating disc 11.

As shown in fig. 3, the rotating ring 12 is made of metal, and a plurality of stripes 14 horizontal to the axis of the rotating ring 12 are recessed on the outer axial wall of the rotating ring 12.

As shown in fig. 3, the iron core of the motor rotor 9 is used for generating a magnetic field, so that a magnetic conductive material is necessary, so that the magnetic field generated by the driving motor 10 can act on the iron core to rotate the iron core; the concave stripes 14 on the surface can not only reduce the use of metal materials and save resources, but also increase the contact area of the magnetic field to a certain extent.

As shown in fig. 3 and 5, the shielding case 5 includes a shielding disk 15 and a shielding ring 16 fixedly connected to a side of the shielding disk 15 away from the rotor 9, an outer axial wall of the shielding disk 15 matches with the inner wall of the cavity 7 of the rotor 9 in size and shape, and a shielding cover 17 matching with the rotating shaft 8 is formed at an end of the shielding ring 16 away from the rotor 9.

As shown in fig. 3 and 5, the stator cavity 6 and the rotor cavity 7 are separated by a shielding disc 15, the rotor 9 is driven to operate in the rotor cavity 7 filled with liquid, the shielding cover 5 performs a sealing function and the performance is better due to static sealing; the shielding cover 17 at the end part can be just sleeved at the end part of the rotating shaft 8 to play a role in positioning; the shield ring 16 is located within and connected to the drive motor 10 and the swivel 12 is located within the shield ring 16 and is protected while providing maximum access to the drive motor 10 to ensure that it can be acted upon by the drive motor 10.

As shown in fig. 1 and 3, the pump housing 3 includes a motor pump housing 18 and a rotor 9 pump housing 3 bounded by a shielding cover 5, a plurality of protrusions 20 are formed outwards on the outer shaft wall of the rotor 9 pump housing 3, a plurality of horizontal screws 21 are connected inside the protrusions 20 in a threaded manner, and a plurality of threaded holes 22 corresponding to the positions of the holes are formed in the contact surface of the motor pump housing 18 and the rotor pump housing 19.

As shown in fig. 1 and 3, the pump housing 3 is divided into two parts for easy assembly and disassembly, the length of the screw 21 is greater than that of the protrusion 20, the motor pump housing 18 and the rotor pump housing 19 are correspondingly attached together according to the positions of the threaded hole 22 and the protrusion 20, the screw 21 is rotated by the protrusion 20 into the threaded hole 22 by rotating the screw 21, and thus the motor pump housing 18 and the rotor pump housing 19 are connected.

As shown in fig. 1, a rubber anti-vibration bump 23 is fixedly connected to the bottom of the supporting base 4.

As shown in fig. 1, a rubber vibration-proof bump 23 having a large friction is provided on the bottom of the support base 4 in order to stabilize the shield pump during use and reduce its vibration.

The above is only the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any solution to the present invention can be replaced or modified simultaneously, and all the solutions are covered in the protection scope of the present invention.

Claims (7)

1. The utility model provides a canned motor pump of airtight type compact structure, is including pump case (3) of seting up water inlet (1) and delivery port (2), pump case (3) bottom fixedly connected with supports base (4), its characterized in that: a shielding cover (5) is arranged in the pump shell (3), and the shielding cover (5) divides the space in the pump shell (3) into a stator cavity (6) and a rotor cavity (7); rotor chamber (7) center department is equipped with horizontally pivot (8), can dismantle in pivot (8) and be connected with rotor (9), shield cover (5) can dismantle the connection in on pivot (8), shield cover (5) are located rotor (9) are kept away from one side of water inlet (1), shield cover (5) deviate from one side of rotor (9) can be dismantled and be connected with and be located driving motor (10) in stator chamber (6).

2. The canned compact canned motor pump of claim 1, wherein: the outer wall of the driving motor (10) and the inner wall of the stator cavity (6) are in polygonal shapes matched with each other.

3. The canned compact canned motor pump of claim 1, wherein: rotor (9) are connected including rotating carousel (11) and fixed connection in pivot (8) are in carousel (11) are kept away from swivel (12) on pivot (8) a side, sunken recess (13) that have a plurality of evenly distributed on the axle wall of carousel (11), swivel (12) with shield cover (5) laminating.

4. The canned compact canned motor pump of claim 3, wherein: the rotating ring (12) is made of metal, and a plurality of stripes (14) which are horizontal to the axis of the rotating ring (12) are recessed on the outer shaft wall of the rotating ring (12).

5. The canned compact canned motor pump of claim 1, wherein: shield cover (5) are including shielding dish (15) and fixed connection be in shielding dish (15) are kept away from shield ring (16) on rotor (9) a side, the outer shaft wall of shielding dish (15) with the inner wall size shape of rotor chamber (7) matches, shield ring (16) are kept away from the one end of rotor (9) be formed with shielding lid (17) that pivot (8) match.

6. The canned compact canned motor pump of claim 1, wherein: the pump shell (3) comprises a motor pump shell (18) and a rotor pump shell (19) which are bounded by the shielding cover (5), a plurality of bulges (20) are outwards formed on the outer shaft wall of the rotor pump shell (19), a plurality of horizontal screw rods (21) are connected to the inner parts of the bulges (20) in a threaded manner, and a plurality of threaded holes (22) corresponding to the screw rods (21) are formed in the contact surface of the motor pump shell (18) and the rotor pump shell (19).

7. The canned compact canned motor pump of claim 1, wherein: and rubber shockproof salient points (23) are fixedly connected to the bottom of the supporting base (4).

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