CN219067955U

CN219067955U - Rotor groove type structure

Info

Publication number: CN219067955U
Application number: CN202223452198.6U
Authority: CN
Inventors: 王根才; 范锋
Original assignee: Wuhan Anlansi Electric Technology Co ltd
Current assignee: Wuhan Anlansi Electric Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-23
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a rotor groove structure, which comprises a rotor body, wherein a shaft hole is formed in the middle of the rotor body in a penetrating way, a key groove is formed in the rotor body, a through hole is formed in the outer side of the shaft hole, and meanwhile, the through hole is formed in the rotor body; further comprises: the heat dissipation holes are formed in the rotor body, heat conducting fins are further fixed on the rotor body, and protruding particles are fixed on the front end face of the rotor body. The rotor groove structure adopts an equivalent single squirrel cage to improve the efficiency and the power factor of the motor, and special treatment on the rotor groove structure can effectively improve the starting performance of the motor and ensure the structural strength of rotor rotation; this rotor cell type structure is provided with the louvre, through the effect at through-hole and louvre, can effectively less rotor body's weight to reduce power loss, cooperation louvre's ventilation effect and the heat conduction effect of conducting strip can effectively realize rotor body's heat dissipation cooling, avoid the high temperature and influence motor's normal operating.

Description

Rotor groove type structure

Technical Field

The utility model relates to the technical field of motor processing, in particular to a rotor groove type structure.

Background

The motor uses a driving mechanism, is widely used in various fields, is mainly used for providing kinetic energy for equipment and ensuring normal operation of the equipment, and mainly comprises a rotor and a stator, and is used for realizing conversion between electric energy and mechanical energy and between the mechanical energy and the electric energy, wherein an iron core of a motor rotor is formed by laminating a plurality of punching sheets, a rotor groove is formed in the iron core of the rotor, the existing common rotor groove type is generally a single-squirrel-cage groove rotor or a double-squirrel-cage groove rotor, and certain defects exist in actual use;

1. the single-squirrel-cage grooved rotor has the best running characteristic, but the worst starting performance, so that the kinetic energy loss is large;

2. the double-squirrel-cage motor is small in cross section of an upper cage and large in cross section of a lower cage, the skin effect is remarkable when the double-squirrel-cage motor is started, the upper cage is mainly used for guiding flow, the leakage magnetic flux of a lower cage turn chain is very large, the flowing current is very small, the rotor resistance is very large, and therefore the starting torque is also very high; during stable operation, because the frequency of the rotor current is very small, the skin effect is negligible, the double cages bear the current carrying effect jointly, so that the rotor resistance is small, the loss and the heating are small, the motor efficiency is improved, although the double cage structure can make up the defect in the aspect of the operation performance to a certain extent, the motor efficiency and the power factor are still relatively low, and the actual use requirement is difficult to meet, so that a rotor groove structure is designed aiming at the problems to meet the actual use requirement.

Disclosure of Invention

The utility model aims to provide a rotor groove-shaped structure so as to solve the problems that in the background technology, the kinetic energy loss is large, the motor efficiency and the power factor are low, and the practical use requirement is difficult to meet.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the rotor groove structure comprises a rotor body, wherein a shaft hole is formed in the middle of the rotor body in a penetrating manner, a key groove is formed in the rotor body, a through hole is formed in the outer side of the shaft hole, and meanwhile, the through hole is formed in the rotor body;

further comprises:

the heat dissipation holes are formed in the rotor body, heat conducting fins are further fixed on the rotor body, protruding particles are fixed on the front end face of the rotor body, and meanwhile, clamping grooves are formed in the rear end face of the rotor body;

the grooves are formed in the rotor body and are distributed at equal angles on the rotor body.

Preferably, the keyway sets up in the shaft hole top, and the keyway is trapezium structure, when installing rotor body and pivot, through trapezium structure's keyway, can all make things convenient for rotor body and pivot to install the block to avoid producing between rotor body and the pivot and rock, and then guarantee rotor body moving stability.

Preferably, the through holes and the radiating holes are distributed at equal angles with respect to the circle center of the rotor body, six groups of through holes and radiating holes are arranged, the through holes and the radiating holes are distributed in a staggered manner, and the weight of the rotor body can be effectively reduced through the functions of the through holes and the radiating holes, so that the power loss of the motor is reduced.

Preferably, the heat conducting fin is arranged in the heat radiating hole, the heat conducting fin is distributed at equal intervals in the heat radiating hole, the proportion between the heat radiating hole and the heat conducting fin is 1:3, and when the rotor body operates to generate heat, air circulation can be facilitated through the heat radiating hole at the moment, the heat conducting fin is matched to increase the contact area with air, and therefore the heat radiating effect of the rotor body is guaranteed.

Preferably, the protruding grain is equiangular distribution at rotor body front end face, and protruding grain is semi-circular structure to the diameter of protruding grain is 0.5mm, when carrying out the stack equipment to the rotor body, through prescribing a limit to protruding grain height, avoids there being great gap between the rotor body, and then guarantees the normal stack of rotor body.

Preferably, the protruding grains and the clamping grooves are distributed in a one-to-one correspondence manner, the protruding grains and the clamping grooves are nested to achieve a limiting effect, the clamping grooves are distributed at equal angles on the rear end face of the rotor body, and when the rotor body is stacked, the upper rotor body and the lower rotor body can be limited through the nesting effect between the protruding grains and the clamping grooves, so that the accuracy of the assembling position of the rotor body is guaranteed.

Preferably, the slot is also provided with a convex slot, a groove and an arc edge;

the convex groove is arranged on the left side of the groove and is formed on the rotor body;

the groove is arranged on the right side of the groove, and the convex groove is formed on the rotor body;

arc limit sets up the fluting upside combines through tongue, recess and three kinds of structures on arc limit, can effectively improve the efficiency and the power factor of motor to satisfy the in-service use demand.

Preferably, the convex groove and the concave groove are arc-shaped structures, the diameters of the convex groove and the concave groove are equal, the number ratio of the convex groove to the concave groove is 1:1:1, the structure of the convex groove and the concave groove is limited, the integral structure of the rotor groove can be ensured, and the structural strength of the rotor body can be ensured.

Compared with the prior art, the utility model has the beneficial effects that: the rotor groove structure adopts an equivalent single squirrel cage to improve the efficiency and the power factor of the motor, and special treatment on the rotor groove structure can effectively improve the starting performance of the motor and ensure the structural strength of rotor rotation;

the rotor groove structure is provided with the heat dissipation holes, and the weight of the rotor body can be effectively reduced through the functions of the through holes and the heat dissipation holes, so that the power loss is reduced, and the heat dissipation and the temperature reduction of the rotor body can be effectively realized by matching the ventilation function of the heat dissipation holes and the heat conduction function of the heat conduction sheets, so that the influence of high temperature on the normal operation of a motor is avoided;

this rotor cell type structure is provided with protruding grain, when stacking the multiunit rotor body, can realize the positioning action through protruding grain and draw-in groove nestification to guarantee multiunit rotor body and pile up the uniformity of position, and then make things convenient for the equipment production of rotor body.

Drawings

FIG. 1 is a schematic perspective view of a rotor body according to the present utility model;

FIG. 2 is a schematic front view of a rotor body according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic side view of a rotor body according to the present utility model;

FIG. 5 is a schematic diagram of a front view of a slot according to the present utility model.

In the figure: 1. a rotor body; 2. a shaft hole; 3. a key slot; 4. a through hole; 5. a heat radiation hole; 6. a heat conductive sheet; 7. protruding particles; 8. a clamping groove; 9. slotting; 901. a convex groove; 902. a groove; 903. arc-shaped edges.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the rotor groove structure comprises a rotor body 1, wherein a shaft hole 2 is formed in the middle of the rotor body 1 in a penetrating manner, a key groove 3 is formed in the rotor body 1, a through hole 4 is formed in the outer side of the shaft hole 2, and meanwhile, the through hole 4 is formed in the rotor body 1; further comprises: the heat dissipation holes 5 are formed in the rotor body 1, the rotor body 1 is also fixedly provided with heat conducting fins 6, the front end surface of the rotor body 1 is fixedly provided with convex particles 7, and the rear end surface of the rotor body 1 is provided with clamping grooves 8; the grooves 9 are formed in the rotor body 1, and the grooves 9 are distributed on the rotor body 1 at equal angles.

The key groove 3 is arranged above the shaft hole 2, and the key groove 3 is of a trapezoid structure; the convex grains 7 are distributed at equal angles on the front end surface of the rotor body 1, the convex grains 7 are of a semicircular structure, and the diameter of the convex grains 7 is 0.5mm; the convex grains 7 and the clamping grooves 8 are distributed in one-to-one correspondence, the convex grains 7 and the clamping grooves 8 are nested to realize a limiting effect, and the clamping grooves 8 are distributed at equal angles on the rear end face of the rotor body 1.

When the rotor groove structure is used, as shown in fig. 1, 2 and 4, firstly, a plurality of groups of rotor bodies 1 are assembled, through nesting matching of convex grains 7 on the front end face of an upper rotor body 1 and clamping grooves 8 on the rear end face of a lower rotor body 1, through limiting actions of the plurality of groups of clamping grooves 8 and the convex grains 7, the accuracy of the positions of the upper rotor body 1 and the lower rotor body 1 can be guaranteed, through holes 4, radiating holes 5 and grooves 9 on the upper rotor body 1 and the lower rotor body 1 are uniformly and correspondingly formed, so that the assembly of the two groups of rotor bodies 1 is facilitated, the assembly of the plurality of groups of rotor bodies 1 can be realized according to the principle, the assembly efficiency of the rotor bodies 1 is improved, after the assembly of the rotor bodies 1 is completed, the rotating shaft and the shaft hole 2 are matched, positioning is realized through nesting of key pins and key grooves 3, and the key grooves 3 are matched with a trapezoid structure, so that the key pins can be effectively prevented from shaking, and the stability of the connection of the rotating shaft and the rotor bodies 1 can be guaranteed.

The through holes 4 and the heat dissipation holes 5 are distributed at equal angles with respect to the circle center of the rotor body 1, six groups of through holes 4 and heat dissipation holes 5 are arranged, and the through holes 4 and the heat dissipation holes 5 are distributed in a staggered manner; the heat conducting fins 6 are arranged in the heat radiating holes 5, the heat conducting fins 6 are distributed in the heat radiating holes 5 at equal intervals, and the ratio between the heat radiating holes 5 and the heat conducting fins 6 is 1:3; the slot 9 is also provided with a convex slot 901, a concave slot 902 and an arc-shaped edge 903; the convex groove 901 is arranged on the left side of the slot 9, and the convex groove 901 is arranged on the rotor body 1; the groove 902 is arranged on the right side of the slot 9, and the convex groove 901 is arranged on the rotor body 1; arcuate edge 903, set up in the upside of the said slotting 9; the convex groove 901 and the concave groove 902 are arc structures, the diameters of the convex groove 901 and the concave groove 902 are equal, and the number ratio of the convex groove 901 to the concave groove 902 to the concave groove 9 is 1:1:1.

After the device is assembled, in actual use, the weight of the rotor body 1 can be effectively reduced through the through holes 4, the radiating holes 5 and the grooves 9, so that the power loss is reduced, and then as shown in fig. 1, 3 and 5, when the rotor body 1 works and cuts the magnetic induction line to generate heat, air can flow conveniently through the radiating holes 5 and the through holes 4, the effective heat dissipation of the rotor body 1 can be realized by matching with the heat conduction effect of a plurality of groups of heat conducting fins 6, the normal operation of the device is prevented from being influenced by overheating of the rotor body 1, and in addition, when the rotor body 1 rotates, the starting performance of a motor can be effectively improved through the special structures of the convex grooves 901, the grooves 902 and the arc-shaped edges 903, and the rotating structural strength of the rotor is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rotor groove type structure, includes rotor body (1), shaft hole (2) have been run through in the middle of rotor body (1), and have still seted up keyway (3) on rotor body (1), the shaft hole (2) outside is provided with through-hole (4), and through-hole (4) are seted up on rotor body (1) simultaneously;

characterized by further comprising:

the heat dissipation holes (5) are formed in the rotor body (1), heat conduction sheets (6) are further fixed on the rotor body (1), protruding particles (7) are fixed on the front end face of the rotor body (1), and meanwhile, clamping grooves (8) are formed in the rear end face of the rotor body (1);

the grooves (9) are formed in the rotor body (1), and the grooves (9) are distributed on the rotor body (1) at equal angles.

2. A rotor groove structure according to claim 1, wherein: the key groove (3) is arranged above the shaft hole (2), and the key groove (3) is of a trapezoid structure.

3. A rotor groove structure according to claim 1, wherein: the through holes (4) and the radiating holes (5) are distributed at equal angles with respect to the circle center of the rotor body (1), six groups of through holes (4) and the radiating holes (5) are arranged, and the through holes (4) and the radiating holes (5) are distributed in a staggered manner.

4. A rotor groove structure according to claim 1, wherein: the heat conducting fins (6) are arranged in the heat radiating holes (5), the heat conducting fins (6) are distributed in the heat radiating holes (5) at equal intervals, and the ratio between the heat radiating holes (5) and the heat conducting fins (6) is 1:3.

5. A rotor groove structure according to claim 1, wherein: the protruding particles (7) are distributed at equal angles on the front end face of the rotor body (1), the protruding particles (7) are of a semicircular structure, and the diameter of the protruding particles (7) is 0.5mm.

6. A rotor groove structure according to claim 1, wherein: the protruding particles (7) and the clamping grooves (8) are distributed in a one-to-one correspondence mode, the protruding particles (7) and the clamping grooves (8) are nested to achieve a limiting effect, and the clamping grooves (8) are distributed at equal angles on the rear end face of the rotor body (1).

7. A rotor groove structure according to claim 1, wherein: a convex groove (901), a concave groove (902) and an arc-shaped edge (903) are also arranged on the groove (9);

the convex groove (901) is arranged on the left side of the slot (9), and the convex groove (901) is arranged on the rotor body (1);

the groove (902) is arranged on the right side of the slot (9), and the convex groove (901) is formed in the rotor body (1);

and the arc-shaped edge (903) is arranged on the upper side of the slot (9).

8. A rotor groove structure as set forth in claim 7 wherein: the convex grooves (901) and the concave grooves (902) are of arc structures, the diameters of the convex grooves (901) and the concave grooves (902) are equal, and the number ratio of the convex grooves (901), the concave grooves (902) to the grooves (9) is 1:1:1.