CN216162558U

CN216162558U - High radiating three-phase asynchronous motor

Info

Publication number: CN216162558U
Application number: CN202121817437.6U
Authority: CN
Inventors: 陈小标; 陈玉飞; 谢百锋
Original assignee: Shaoxing Jinying Machinery Manufacturing Co ltd
Current assignee: Shaoxing Jinying Machinery Manufacturing Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-04-01
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a high-heat-dissipation three-phase asynchronous motor, which comprises a motor body, a main shaft, a main fan, a tail cover and a dust cover, wherein the main shaft is arranged on the motor body; the tail end of the main shaft is provided with a driving gear; the tail end of the machine body is connected with a plurality of driven gears; the driven gear is coaxially connected with the first belt pulley; the first belt wheel is connected with the second belt wheel through a first belt; the second belt wheel is fixed on the transmission shaft; the part of the transmission shaft in the machine body is provided with an auxiliary fan and a heat exchange paddle; one end of the heat exchange paddle is provided with a water through port; according to the utility model, by arranging the auxiliary fan and the heat exchange paddle, when the main fan dissipates heat to the machine body, cooling water is introduced into the heat exchange paddle from the water through port, and heat dissipated by the fins is taken away by utilizing water flow heat exchange along with the rotation of the heat exchange paddle and the auxiliary fan, so that the heat on the fins can be fully taken away, and the heat dissipation effect is enhanced; through setting up the dust cover, keep apart fin and external, prevent that external debris from falling on the fin, guarantee the radiating effect of fin.

Description

High radiating three-phase asynchronous motor

Technical Field

The utility model belongs to the field of motors, and particularly relates to a high-heat-dissipation three-phase asynchronous motor.

Background

The three-phase asynchronous motor is one of induction motors, and is a motor supplied with power by simultaneously connecting 380V three-phase alternating current (phase difference of 120 degrees), and is called a three-phase asynchronous motor because a rotor and a stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different rotating speeds and have slip ratios. The rotating speed of the rotor of the three-phase asynchronous motor is lower than that of a rotating magnetic field, and the rotor winding generates electromotive force and current due to relative motion between the rotor winding and the magnetic field and interacts with the magnetic field to generate electromagnetic torque so as to realize energy conversion.

Most of the existing three-phase asynchronous motors adopt a tail radiating mode, the radiating mode is low in efficiency, radiating fins on the surfaces of the motors also have radiating capacity, but a large amount of impurities can be accumulated on the surfaces of the fins when the motors are used for a long time, the radiating effect is reduced, the motors are enabled to be uneven in radiating, and the service life of the asynchronous motors can be influenced due to uneven radiating of the asynchronous motors.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the high-heat-dissipation three-phase asynchronous motor with improved heat dissipation capability.

The technical scheme provided by the utility model is as follows: a high-heat-dissipation three-phase asynchronous motor comprises a motor body, a main shaft rotationally connected to the motor body, a main fan located at the tail end of the motor body and connected with the tail end of the main shaft, a tail cover installed at the tail end of the motor body, fins arranged on the motor body and a dust cover arranged on the surface of the motor body; the fins are positioned in the dust cover; the tail end of the main shaft is provided with a driving gear; the tail end of the machine body is rotatably connected with a plurality of driven gears; each driven gear is meshed with the driving gear respectively; the driven gear is coaxially connected with the first belt pulley; the first belt wheel is connected with the second belt wheel through a first belt; the second belt wheel is fixed on the transmission shaft; the transmission shaft is inserted into the dust cover and is rotationally connected with the dust cover; two auxiliary fans are arranged on the part of the transmission shaft in the machine body; a heat exchange paddle is arranged between the two auxiliary fans; the heat exchange paddle is hollow; one end of the heat exchange paddle penetrates out of the dust cover and is provided with a water through hole.

When the fan is used, the main shaft is rotated by the machine body, and the main fan is driven to rotate to dissipate heat at the tail part; when the main shaft rotates, the driving gear rotates along with the main shaft and drives the driven gear meshed with the driving gear to rotate, and through transmission of the first belt wheel, the second belt wheel and the first belt, each transmission shaft rotates along with the main shaft, so that the auxiliary fan and the heat exchange paddle rotate; cooling water is introduced from the water through port in the heat exchange paddle, and along with the rotation of the fan and the heat exchange paddle, the cooling water takes away heat emitted by the fins in the dust cover to cool the machine body, so that the integral heat dissipation capacity of the machine body is improved; the fin outside has the dust cover, effectively isolated external environment, avoids gathering impurity on the fin and reduces its heat-sinking capability.

Furthermore, a plurality of openings are arranged on the dust cover; a dustproof piece is arranged in the opening; the dustproof piece comprises a rotating shaft which is rotatably connected with the dustproof cover, a partition plate which is arranged on the rotating shaft and is positioned in the opening, two filter screen layers which are symmetrically arranged on the partition plate, a fixing frame for fixing the filter screen layers, a full gear which is arranged at one end of the rotating shaft and a torsional spring which is positioned between the rotating shaft and the machine body; two ends of the torsion spring are respectively fixed on the dust cover and the rotating shaft; a third belt wheel is arranged on the transmission shaft; a fourth belt wheel is rotatably connected outside the dust cover; the third belt wheel is connected with the fourth belt wheel through a second belt; the fourth belt wheel is coaxially connected with a part of gears; the partial gear may mesh with the full gear.

When the transmission shaft rotates, the third belt wheel, the fourth belt wheel and the second belt drive the partial gear to rotate, the partial gear is periodically meshed with the full gear, and when the partial gear and the full gear are meshed, the full gear drives the rotating shaft to rotate, so that the partition plate is turned over, the opening is opened, and the heat dissipation inside the dust cover is accelerated; when part of the gears are separated from the full gears, the torsion spring drives the rotating shaft to reset, and the partition plate closes the opening again, so that the opening can be closed when the machine body stops working, and external impurities are prevented from falling onto the fins; the filter screen layer is arranged to enable air inside and outside the wind cap to be always circulated, so that after the machine body stops working, waste heat energy in the wind cap is dissipated out through the filter screen layer and cooling water in the heat exchange paddle, and the machine body is prevented from being damaged due to the fact that the machine body is in a high-temperature state for a long time after the machine body stops working; and solid impurities can not pass through the filter screen layer, so that the heat dissipation capacity of the fins is ensured.

Furthermore, two filter screen seats are symmetrically arranged on two sides of the partition plate; the filter screen layer is positioned in the filter screen seat; one end of the filter screen layer is provided with a cavity; one side of the cavity is provided with a flexible layer; a convex edge is arranged outside the cavity; the convex edge is positioned between the fixed frame and the partition plate; one side of the fixed frame is rotatably connected to the partition plate; a locking groove is formed in the other side of the fixing frame; two rotating rods are symmetrically arranged on the surface of the partition plate; the two rotating rods are respectively positioned in the locking grooves of the two fixing frames; one end of the rotating rod is provided with a limiting block; the rotating rod is rotatably connected with a locking block; the locking piece is located between the limiting block and the locking groove.

A limiting block is arranged to prevent the locking block from being taken out of the rotating rod; when the filter screen layer is full of impurities and needs to be replaced, only the locking block needs to be rotated to enable the locking block to be opposite to the locking groove, and then the fixing frame is rotated to enable the filter screen layer to be exposed outside; at the moment, the fixed block does not extrude the convex edge any more, the pressure intensity in the cavity is reduced, and the flexible layer does not press the filter screen seat any more, so that the filter screen layer can be taken down easily, and impurities on the filter screen layer are prevented from shaking off the fins due to over-strong force when the filter screen layer is taken down.

Furthermore, a plurality of T-shaped grooves are formed in the rear end of the machine body; a plurality of slots are formed in the inner side of the T-shaped groove; t-shaped blocks which correspond to the T-shaped grooves one by one are arranged on the inner side of the tail cover; the T-shaped block is provided with a round hole; the round hole is opposite to the slot; a cylinder is inserted into the round hole; two stop blocks are symmetrically arranged at one end of the column body; the stop block is inserted into the slot.

The rotation of the tail cover is limited through the matching of the T-shaped groove and the T-shaped block, so that the stop block can be accurately inserted into the slot; after the stop block is inserted into the slot, the stop block is rotated to be staggered with the upper opening of the slot, so that the sliding of the T-shaped block is limited, and the tail cover can be fixed at the rear end of the machine body; compared with the existing threaded connection mode, the cylinder body and the stop block are plastic pieces, so that the connecting position of the tail cover and the machine body is prevented from being embroidered, the tail cover is convenient to detach to maintain the main fan, and the heat dissipation capacity of the main fan is guaranteed.

Furthermore, a mounting seat is arranged in the column body; a fixing ring is connected in the mounting seat in a sliding manner; a tension spring is fixed between the fixing ring and the mounting seat; one end of the fixing ring penetrates out of the mounting seat and is symmetrically provided with two rotation stopping rods; a plurality of anti-rotation grooves are formed in the tail cover; the rotation stopping rod is inserted into the rotation stopping groove; the middle part of the fixing ring is provided with a connecting groove; a push rod is arranged in the mounting seat; the push rod is inserted into the connecting groove.

When the tail cover is installed, the T-shaped block is inserted into the T-shaped groove, the stop block is inserted into the slot only by pressing the push rod, then the push rod is rotated to enable the stop block to be staggered with an upper opening of the slot, the stop block and a matched fixing ring of the connecting groove synchronously rotate in the process, the stop rod is embedded into the stop slot under the pulling force of the tension spring to limit the rotation of the cylinder, the stop block is prevented from being separated from the slot due to the vibration generated by the work of the machine body, the tail cover is prevented from being loosened and contacting with the main fan, and the stable work of the main fan is ensured; when dismantling the tail-hood, only need to lift solid fixed ring and make the spline break away from the spline groove, rotate solid fixed ring afterwards and can make push rod and dog rotatory, the dog shifts out from the slot under the extension spring effect, can take off the tail-hood afterwards, easy operation is practical, and the convenience is maintained the main fan.

In summary, the auxiliary fan and the heat exchange paddle are arranged, when the main fan dissipates heat to the machine body, the cooling water is introduced into the heat exchange paddle from the water through opening, and the heat dissipated by the fins is taken away by utilizing the heat exchange of water flow along with the rotation of the heat exchange paddle and the auxiliary fan, so that the heat on the fins can be fully taken away, and the heat dissipation effect is enhanced; through setting up the dust cover, keep apart fin and external, prevent that external debris from falling on the fin to the radiating effect of fin has been guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of a portion B in fig. 2.

Fig. 5 is a partially enlarged view of a portion C in fig. 2.

Figure 6 is an isometric cross-sectional view of the present invention.

Fig. 7 is a partially enlarged view of a portion D in fig. 6.

Fig. 8 is a schematic structural view of the dust-proof member in fig. 1.

Fig. 9 is an exploded view of the tail cap of fig. 1.

Fig. 10 is an exploded view of a portion of the tail cap of fig. 1.

FIG. 11 is a schematic view of the connection between the column and the fixing ring in FIG. 9.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 11, a three-phase asynchronous motor with high heat dissipation includes a body 1, a main shaft 2, a main fan 21, a tail cover 3, fins 4 and a dust cover 5; the main shaft 2 is rotationally connected to the machine body 1; the main fan 21 is positioned at the tail end of the machine body 1 and connected with the tail end of the main shaft 2 in the same way as the prior art; the tail cover 3 is arranged at the tail end of the machine body 1; the fins 4 are arranged on the surface of the machine body 1; the dust cover 5 is arranged on the surface of the machine body 1, and the fins 4 are positioned in the dust cover 5; the tail end of the main shaft 2 is provided with a driving gear 22; the tail end of the machine body 1 is rotatably connected with a plurality of driven gears 11, and each driven gear 11 is meshed with a driving gear 22; the driven gear 11 is coaxially connected with the first belt pulley 12; the dust cover 5 is rotatably connected with a rotating shaft 61, one end of the rotating shaft 61 is fixed with a second belt wheel 51, and the first belt wheel 12 is connected with the second belt wheel 51 through a first belt 13; the part of the transmission shaft 52 in the machine body 1 is provided with two auxiliary fans 53, and each auxiliary fan 53 is respectively positioned at two ends in the dust cover 5; and heat exchange paddles 54 are arranged between the auxiliary fans 53, the heat exchange paddles 54 are hollow, one ends of the heat exchange paddles 54 penetrate out of the dust cover 5 and are provided with water through holes 55, and cooling water can be introduced into the water through holes 55.

Furthermore, a plurality of openings 56 are arranged on the dust cover 5, and the dust-proof piece 6 is arranged in the openings 56; the dust-proof part 6 comprises a rotating shaft 61, a partition plate 62, a filter screen layer 63, a fixed frame 64, a full gear 65 and a torsion spring 66; the rotating shaft 61 is rotatably connected with the dust cover 5; the partition plates 62 are arranged on two sides of the rotating shaft 61 and are positioned in the opening 56; the number of the filter screen layers 63 is two, and the filter screen layers are symmetrically arranged on the partition plate 62; one end of the fixed frame 64 is hinged on the partition plate 62 and is positioned outside the filter screen layer 63; the full gear 65 is arranged at one end of the rotating shaft 61; two ends of the torsion spring 66 are respectively fixed on the rotating shaft 61 and the dust cover 5; the transmission shaft 52 is provided with a third belt wheel 57; a fourth belt wheel 58 is rotatably connected outside the dust cover 5, and the third belt wheel 57 is connected with the fourth belt wheel 58 through a second belt 59; the fourth pulley 58 is coaxially connected with the partial gear 50, and the partial gear 50 can be meshed with the full gear 65; two filter screen seats 621 are symmetrically arranged on two sides of the partition plate 62, and the filter screen layer 63 is positioned in the filter screen seats 621; one end of the filter screen layer 63 is provided with a cavity 631, one side of the cavity 631 is provided with a flexible layer 632, the flexible layer 632 is made of soft rubber, and the flexible layer 632 is tightly attached to the filter screen seat 621; a convex edge 633 is arranged outside the cavity 631, and the convex edge 633 is positioned between the fixing frame 64 and the partition plate 62; the other side of the fixing frame 64 is provided with a locking groove 641; the surface of the partition plate 62 is symmetrically provided with two rotating rods 622, and the two rotating rods 622 are respectively inserted into the locking grooves 641 of the two fixing frames 64; one end of the rotating rod 622 is provided with a limiting block 623; the rotating rod 622 is rotatably connected with a locking block 624, and the locking block 624 is located between the limiting block 623 and the locking groove 641.

Further, the rear end of the machine body 1 is provided with a plurality of T-shaped grooves 14; a plurality of slots 15 are arranged on the inner side of the T-shaped groove 14; a plurality of T-shaped blocks 31 are arranged on the inner side of the tail cover 3, the T-shaped blocks 31 correspond to the T-shaped grooves 14 one by one, and the T-shaped blocks 31 are inserted into the T-shaped grooves 14; a round hole 32 is arranged on the T-shaped block 31, and the round hole 32 is opposite to the slot 15; a cylinder 33 is inserted into the round hole 32; two stop blocks 331 are symmetrically arranged at one end of the column 33, and the stop blocks 331 are inserted into the slots 15; the column 33 is internally provided with a mounting seat 332; the mounting seat 332 is internally provided with a fixing ring 34, the fixing block can slide along the mounting seat 332, and one end of the fixing block penetrates out of the mounting seat 332; a tension spring 35 is fixed between the fixing ring 34 and the mounting seat 332; two rotation stopping rods 341 are symmetrically arranged on the part of the fixing ring 34 penetrating out of the mounting seat 332; a plurality of rotation stopping grooves 36 are formed in the tail cover 3, and the rotation stopping rods are inserted into the rotation stopping grooves 36; the middle part of the fixing ring 34 is provided with a connecting groove 342; the push rod 333 is arranged in the mounting seat 332, and the push rod 333 is inserted into the connecting groove 342.

When the fan is used specifically, the machine body 1 works to enable the main shaft 2 to rotate, and further drives the main fan 21 to rotate so as to carry out tail heat dissipation; when the main shaft 2 rotates, the driving gear 22 rotates along with the main shaft, the driven gear 11 rotates along with the main shaft, and each transmission shaft 52 rotates through the transmission of the first belt wheel 12, the second belt wheel 51 and the first belt 13, so that the auxiliary fan 53 and the heat exchange paddle 54 rotate; cooling water is introduced into the heat exchange paddle 54 from the water through hole 55, the cooling water takes away heat emitted from the fins 4 in the dust cover 5, meanwhile, the partial gear 50 rotates through the transmission of the third belt wheel 57, the fourth belt wheel 58 and the second belt 59, the partial gear 50 is periodically meshed with the full gear 65, when the partial gear 50 and the full gear are meshed, the full gear 65 drives the rotating shaft 61 to rotate, the partition plate 62 is further turned over, the opening 56 is opened, and the heat radiation in the dust cover 5 is accelerated; after the machine body 1 stops working, the main shaft 2 stops rotating, the transmission shaft 52 stops rotating along with the main shaft, part of the gears 50 stay at the position separated from the full gear 65, the torsion spring 66 drives the rotating shaft 61 to reset, the partition plate 62 is reset, the opening 56 is closed, and the residual heat in the dust cover 5 is dissipated out through the filter screen layer 63 and the cooling water in the heat exchange paddle 54; when the collective maintenance is needed, the locking block 624 is rotated to be opposite to the locking groove 641, then the fixing frame 64 is rotated to expose the filter screen layer 63, and the filter screen layer 63 is taken down and replaced; the fixed ring 34 is pulled to make the rotation stopping rod 341 disengage from the rotation stopping groove 36, then the fixed ring 34 is rotated to make the push rod 333 and the stop block 331 rotate, the stop block 331 moves out from the slot 15 under the action of the tension spring 35, then the tail cover 3 can be taken down, and the main fan 21 is maintained.

Claims

1. A three-phase asynchronous motor with high heat dissipation comprises a machine body (1), a main shaft (2) rotatably connected to the machine body (1), a main fan (21) located at the tail end of the machine body (1) and connected with the tail end of the main shaft (2), a tail cover (3) installed at the tail end of the machine body (1), fins (4) arranged on the machine body (1) and a dust cover (5) arranged on the surface of the machine body (1); the method is characterized in that: the fins (4) are positioned in the dust cover (5); the tail end of the main shaft (2) is provided with a driving gear (22); the tail end of the machine body (1) is rotatably connected with a plurality of driven gears (11); each driven gear (11) is respectively meshed with the driving gear (22); the driven gear (11) is coaxially connected with the first belt wheel (12); the first belt wheel (12) is connected with the second belt wheel (51) through a first belt (13); the second belt wheel (51) is fixed on the transmission shaft (52); the transmission shaft (52) is inserted into the dust cover (5) and is rotationally connected with the dust cover (5); two auxiliary fans (53) are arranged on the part of the transmission shaft (52) positioned in the machine body (1); a heat exchange paddle (54) is arranged between the two auxiliary fans (53); the heat exchange paddle (54) is hollow inside; one end of the heat exchange paddle (54) penetrates out of the dust cover (5) and is provided with a water through hole (55).

2. The three-phase asynchronous motor with high heat dissipation according to claim 1, wherein: a plurality of openings (56) are arranged on the dust cover (5); a dustproof piece (6) is arranged in the opening (56); the dustproof piece (6) comprises a rotating shaft (61) rotatably connected with the dustproof cover (5), a partition plate (62) arranged on the rotating shaft (61) and positioned in the opening (56), two filter screen layers (63) symmetrically arranged on the partition plate (62), a fixing frame (64) used for fixing the filter screen layers (63), a full gear (65) arranged at one end of the rotating shaft (61), and a torsion spring (66) positioned between the rotating shaft (61) and the dustproof cover (5); two ends of the torsion spring (66) are respectively fixed on the dust cover (5) and the rotating shaft (61); a third belt wheel (57) is arranged on the transmission shaft (52); a fourth belt wheel (58) is rotatably connected outside the dust cover (5); the third belt wheel (57) is connected with the fourth belt wheel (58) through a second belt (59); the fourth belt wheel (58) is coaxially connected with the partial gear (50); the partial gear (50) can mesh with a full gear (65).

3. The three-phase asynchronous motor with high heat dissipation according to claim 2, wherein: two filter screen seats (621) are symmetrically arranged on two sides of the partition plate (62); the filter screen layer (63) is positioned in the filter screen seat (621); one end of the filter screen layer (63) is provided with a cavity (631); a flexible layer (632) is arranged on one side of the cavity (631); a convex edge (633) is arranged outside the cavity (631); the convex edge (633) is positioned between the fixed frame (64) and the partition plate (62); one side of the fixed frame (64) is rotatably connected to the partition plate (62); a locking groove (641) is formed in the other side of the fixed frame (64); two rotating rods (622) are symmetrically arranged on the surface of the partition plate (62); the two rotating rods (622) are respectively positioned in the locking grooves (641) of the two fixed frames (64); one end of the rotating rod (622) is provided with a limiting block (623); a locking block (624) is rotatably connected to the rotating rod (622); the locking block (624) is positioned between the limiting block (623) and the locking groove (641).

4. A three-phase asynchronous motor according to claim 1, characterized in that: the rear end of the machine body (1) is provided with a plurality of T-shaped grooves (14); a plurality of slots (15) are formed in the inner side of the T-shaped groove (14); t-shaped blocks (31) which correspond to the T-shaped grooves (14) one by one are arranged on the inner side of the tail cover (3); a round hole (32) is arranged on the T-shaped block (31); the round hole (32) is opposite to the slot (15); a cylinder (33) is inserted into the round hole (32); two stop blocks (331) are symmetrically arranged at one end of the column body (33); the stop block (331) is inserted into the slot (15).

5. A three-phase asynchronous motor according to claim 4, characterized in that: a mounting seat (332) is arranged in the column body (33); a fixing ring (34) is connected in the mounting seat (332) in a sliding manner; a tension spring (35) is fixed between the fixing ring (34) and the mounting seat (332); one end of the fixing ring (34) penetrates out of the mounting seat (332) and is symmetrically provided with two rotation stopping rods (341); a plurality of anti-rotation grooves (36) are formed in the tail cover (3); the rotation stopping rod is inserted into the rotation stopping groove (36); the middle part of the fixed ring (34) is provided with a connecting groove (342); a push rod (333) is arranged in the mounting seat (332); the push rod (333) is inserted into the connecting groove (342).