CN216086393U - Rotor structure of motor for high-pressure submersible pump - Google Patents

Abstract

The utility model discloses a rotor structure of a motor for a high-pressure submersible pump, which belongs to the technical field of high-pressure submersible pumps and comprises a mandrel, wherein a rotor core is sleeved on the surface of the mandrel, the left side surface of the rotor core is fixedly connected with the right side surface of a front balance plate, and the left side surface of the front balance plate is fixedly connected with the right side surfaces of the inner walls of a plurality of deflection fins through screws. This rotor structure of motor for high pressure submersible pump, through setting up rotor core, supporting shoe and fixture block, outer nut is at first under the left inclined plane effect of fixture block when the stable right motion of rotatory in-process, make its fixture block press the toughness steel sheet, make it take place deformation, this kind of mode adopts the fixed mode of two nuts, the mode of cooperation reciprocal anchorage between interior nut and the outer nut simultaneously, can keep stable fixed when high-speed rotation, the rotatory centrifugal force of cooperation fixture block, make it can offset outer nut's stress, make its very big guarantee the security of using.

Description

Rotor structure of motor for high-pressure submersible pump

Technical Field

The utility model belongs to the technical field of high-pressure submersible pumps, and particularly relates to a rotor structure of a motor for a high-pressure submersible pump.

Background

The submersible pump is a centrifugal water pump which takes a motor as a prime mover and is applied to important occasions such as sewage treatment, hydraulic engineering and the like. Along with market to the demand of immersible pump flow and the continuous increase of lift, supporting motor power also crescent with it, the motor rotor's that corresponds with it excircle and the long also can lengthen of iron core, cause the weight increase of rotor itself, torsion can the grow, it is big to shell open the volume towards the piece, the iron core can't compress tightly, cause the loss to increase the motor temperature rise, because the dive motor volume has the restriction, it is narrow and small to cause wind path design space, unable good ventilation wind path of design reduces the temperature rise, the motor operation will worsen, simultaneously in the use, along with the continuous increase of torsion, the effort that its rotor core received is great, partly appears becoming flexible easily in long-time load use of its traditional fixed mode, make it have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides a rotor structure of a motor for a high-pressure submersible pump, which solves the problems that the loss is increased and the motor temperature rise is increased due to the fact that an iron core cannot be compressed, the design space of a wind path is narrow due to the limitation of the size of a submersible motor, the temperature rise cannot be reduced due to a well-designed ventilation wind path, the motor operation will be deteriorated, meanwhile, in the use process, along with the continuous increase of the torsion force, the acting force applied to the rotor iron core is large, and the part of the traditional fixing mode is easy to loosen in the long-time load use, so that certain potential safety hazards exist in the motor.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a rotor structure of a motor for a high-pressure submersible pump comprises a mandrel, wherein the surface of the mandrel is sleeved with a rotor core, the left side surface of the rotor core is fixedly connected with the right side surface of a front balance plate, the left side surface of the front balance plate is fixedly connected with the right side surfaces of the inner walls of a plurality of deflection fins through screws, the surface of the mandrel is clamped with the inner wall of a clamping ring, the left side surface of the clamping ring is provided with a thread groove, the thread groove arranged on the left side surface of the clamping ring is fixedly connected with the right side surface of an inner fan through screws, the upper surface of the mandrel is provided with a limiting groove, the lower surface of the inner wall of the limiting groove is lapped with the lower surface of a supporting block, the upper surface of the supporting block is fixedly connected with the lower surface of a tough steel sheet, the upper surface of the tough steel sheet is fixedly connected with the lower surface of a clamping block, and the surface of the mandrel is in threaded connection with an inner nut and an outer nut, the inner walls of the inner nut and the outer nut are attached to the surface of the same tough steel sheet.

As a further scheme of the utility model: the left side face of the outer nut is in lap joint with the right side face of the clamping block, and the right side face of the inner nut is in lap joint with the left side face of the rotor core.

As a further scheme of the utility model: the right side surface of the clamping block is a vertical surface, and the right side surface of the clamping block is fixedly connected with the left side surface of the anti-slip sheet.

As a further scheme of the utility model: the inner nut is positioned above the supporting block, and the right side surface of the rotor core is fixedly connected with the left side surface of the rear balance plate.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the rotor structure of the motor for the high-pressure submersible pump comprises a rotor core, a mandrel, an outer nut, an inner nut, a limiting groove, a tough steel sheet, a supporting block and a clamping block, wherein when the rotor core, the mandrel, the outer nut, the inner nut, the limiting groove, the tough steel sheet, the supporting block and the tough steel sheet are arranged on the surface of the mandrel, a worker firstly sleeves the rotor core on the surface of the mandrel, then places the supporting block and the tough steel sheet in the limiting groove, simultaneously keeps the right end of the tough steel sheet tightly limited in the limiting groove under the action of the inner nut, keeps the supporting block tightly attached to the inner wall of the limiting groove, then twists the outer nut on the surface of the mandrel by the worker, and when the outer nut moves rightwards stably in the rotating process, firstly presses the tough steel sheet by the clamping block to deform the tough steel sheet until the outer nut slides through the clamping block and is reset under the action of the tough steel sheet to limit the outer nut and the inner nut, the mode adopts a double-nut fixing mode, and meanwhile, the inner nut and the outer nut are matched and fixed with each other, so that the inner nut and the outer nut can be kept stably fixed during high-speed rotation, and the stress of the outer nut can be counteracted by matching with the centrifugal force generated by the rotation of the clamping block, so that the use safety is greatly guaranteed.

2. This rotor structure of motor for high pressure submerged pump, through setting up the internal fan, the fin deflects, rotor core, leading balance plate, snap ring and dabber, when using, the dabber drives rotor core high-speed rotatory, leading balance plate and the rearmounted balance plate synchronous revolution that the rotor core left and right sides set up afterwards, the surface of dabber drives the snap ring rotatory, the snap ring makes it drive internal fan high-speed rotatory through the fix with screw, leading balance plate drives the fin rotation that deflects in the high-speed rotatory in-process of internal fan, stir inside air through internal fan and fin synchronous revolution, wind path in fan and the opposite deflection angle of fin that deflects make it form simultaneously, can effectively drive inside gas flow like this, thereby reduce the temperature rise, both guaranteed the reliable operation of motor for submerged pump, be favorable to improving the performance of motor.

Drawings

FIG. 1 is a schematic cross-sectional view of the front view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the present invention at A;

FIG. 3 is a schematic perspective view of the present invention;

in the figure: 1 mandrel, 2 rotor cores, 3 front balance plates, 4 rear balance plates, 5 deflection fins, 6 snap rings, 7 inner fans, 8 limit grooves, 9 support blocks, 10 tough steel sheets, 11 fixture blocks, 12 outer nuts, 13 inner nuts and 14 anti-slip sheets.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-3, the present invention provides a technical solution: a rotor structure of a motor for a high-pressure submersible pump comprises a mandrel 1, a rotor core 2 is sleeved on the surface of the mandrel 1, the left side surface of the rotor core 2 is fixedly connected with the right side surface of a front balance plate 3, the left side surface of the front balance plate 3 is fixedly connected with the right side surface of the inner wall of a plurality of deflection fins 5 through screws, the surface of the mandrel 1 is clamped with the inner wall of a snap ring 6, the left side surface of the snap ring 6 is provided with a thread groove, the thread groove arranged on the left side surface of the snap ring 6 is fixedly connected with the right side surface of an inner fan 7 through screws, the upper surface of the mandrel 1 is provided with a limiting groove 8, the lower surface of the inner wall of the limiting groove 8 is lapped with the lower surface of a supporting block 9, the upper surface of the supporting block 9 is fixedly connected with the lower surface of a tough steel sheet 10, the upper surface of the tough steel sheet 10 is fixedly connected with the lower surface of a clamping block 11, the surface of the mandrel 1 is in threaded connection with an inner nut 13 and an outer nut 12, the inner walls of the inner nut 13 and the outer nut 12 are attached to the surface of the same tough steel sheet 10.

Specifically, as shown in fig. 1 and 3, the inner nut 13 is located above the supporting block 9, the right side surface of the rotor core 2 is fixedly connected with the left side surface of the rear balance plate 4, the supporting block 9 can keep the right side of the tough steel sheet 10 fixed by setting the supporting block 9, so that the left side of the tough steel sheet 10 has good elasticity, the tough steel sheet can be convenient for limiting, and the rear balance plate 4 has good air flow gathering effect by setting the rear balance plate 4.

Specifically, as shown in fig. 2, the left side surface of the outer nut 12 is overlapped with the right side surface of the fixture block 11, the right side surface of the inner nut 13 is overlapped with the left side surface of the rotor core 2, the right side surface of the fixture block 11 is a vertical surface, the right side surface of the fixture block 11 is fixedly connected with the left side surface of the anti-slip piece 14, by arranging the outer nut 12, the outer nut 12 can keep limiting the inner nut 13 when in use, by arranging the fixture block 11, the fixture block 11 can play a good limiting effect on the outer nut 12 and the inner nut 13, by arranging the anti-slip piece 14, when the fixture block 11 is moved outwards under the action of centrifugal force, the tough steel piece 10 is bent until the anti-slip piece 14 on the right side surface of the fixture block 11 can be attached to the left side surface of the outer nut 12, so that the outer nut 12 can be kept to be placed in high-speed rotation and slip occurs.

The working principle of the utility model is as follows:

s1, when the rotor core 2 is installed, a worker firstly sleeves the rotor core 2 on the surface of the mandrel 1, then the worker places the supporting block 9 and the tough steel sheet 10 in the limiting groove 8, and simultaneously the inner nut 13 continuously rotates on the mandrel 1 to enable the inner nut 13 to keep the rotor core 2 fixed, meanwhile, the right end of the tough steel sheet 10 is kept tightly limited in the limiting groove 8 under the action of the inner nut 13, and the supporting block 9 is kept tightly attached to the inner wall of the limiting groove 8;

s2, then, a worker screws the outer nut 12 on the surface of the mandrel 1, when the outer nut 12 stably moves rightwards in the rotating process, under the action of the inclined plane on the left side of the clamping block 11, the clamping block 11 presses the flexible steel sheet 10 to deform the flexible steel sheet, the outer nut 12 and the inner nut 13 can be limited until the outer nut 12 slides through the clamping block 11 and is reset under the action of the flexible steel sheet 10, meanwhile, the clamping block 11 keeps stable limiting under the action of centrifugal force during rotation, when disassembly is needed, the clamping block 11 is pressed to press the flexible steel sheet 10 to deform, the inner nut 13 and the outer nut 12 can be taken out, and the mandrel 1 drives the rotor core 2 to rotate at a high speed;

s3, the front balance plate 3 and the rear balance plate 4 arranged on the left side and the right side of the rotor core 2 rotate synchronously, the surface of the mandrel 1 drives the snap ring 6 to rotate, the snap ring 6 drives the inner fan 7 to rotate at a high speed through screw fixation, the front balance plate 3 drives the deflection fin 5 to rotate in the high-speed rotation process of the inner fan 7, the inner air is stirred through synchronous rotation of the inner fan 7 and the deflection fin 5, and meanwhile, the inner air path is formed by the inner fan 7 and the deflection fin 5 at the opposite deflection angle so as to achieve the cooling effect.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (4)

1. The utility model provides a rotor structure of motor for high pressure submersible pump, includes dabber (1), its characterized in that: the surface of the mandrel (1) is sleeved with a rotor core (2), the left side surface of the rotor core (2) is fixedly connected with the right side surface of the preposed balance plate (3), the left side surface of the preposed balance plate (3) is fixedly connected with the right side surface of the inner wall of the deflection fins (5) through screws, the surface of the mandrel (1) is clamped with the inner wall of the snap ring (6), the left side surface of the snap ring (6) is provided with a thread groove, the thread groove arranged on the left side surface of the snap ring (6) is fixedly connected with the right side surface of the inner fan (7) through screws, the upper surface of the mandrel (1) is provided with a limit groove (8), the lower surface of the inner wall of the limit groove (8) is lapped with the lower surface of the supporting block (9), the upper surface of the supporting block (9) is fixedly connected with the lower surface of the tough steel sheet (10), the upper surface of the tough steel sheet (10) is fixedly connected with the lower surface of the clamping block (11), the surface of the mandrel (1) is in threaded connection with an inner nut (13) and an outer nut (12), and the inner walls of the inner nut (13) and the outer nut (12) are attached to the surface of the same tough steel sheet (10).

2. The rotor structure of an electric motor for a high-pressure submersible pump according to claim 1, characterized in that: the left side surface of the outer nut (12) is in lap joint with the right side surface of the clamping block (11), and the right side surface of the inner nut (13) is in lap joint with the left side surface of the rotor core (2).

3. The rotor structure of an electric motor for a high-pressure submersible pump according to claim 1, characterized in that: the right side surface of the clamping block (11) is a vertical surface, and the right side surface of the clamping block (11) is fixedly connected with the left side surface of the anti-slip sheet (14).

4. The rotor structure of an electric motor for a high-pressure submersible pump according to claim 1, characterized in that: the inner nut (13) is positioned above the supporting block (9), and the right side surface of the rotor core (2) is fixedly connected with the left side surface of the rear balance plate (4).

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