A cooling sharing device for a direct-drive outer rotor steel sleeve wire drawing machine motor

Abstract

The present invention discloses a cooling sharing device for a direct-drive outer rotor steel sleeve wire drawing machine motor, which relates to the field of motors and includes a main shaft, a coolant channel is arranged through the main shaft; a steel sleeve outer shell is sleeved on the outer periphery of a rotor casing, a gap is arranged between the steel sleeve outer shell and the rotor casing, the bottom of the steel sleeve outer shell is supported on an auxiliary support ring, the auxiliary support ring is sleeved on the outer periphery of the rotor casing, so that a closed cooling cavity is formed between the steel sleeve outer shell, the rotor casing and the auxiliary support ring for accommodating coolant, one end of the water inlet pipe is connected to the outer shell coolant pipeline, and the other end of the water inlet pipe penetrates into the cooling cavity from the top of the steel sleeve outer shell; a plurality of drainage holes are provided on the auxiliary support ring, and the water outlet pipe penetrates into the cooling cavity from the drainage holes. The beneficial effects of the present invention are: compact structure, using an outer rotor motor without a reduction mechanism; cooling sharing, a constant water level cooling system ensures reliable cooling, and at the same time solves the heat dissipation problem of the heat generated by the motor rotor and the wire drawing steel sleeve.

Description

Technical Field

[0001] The invention relates to the field of motors, and in particular to a cooling sharing device for a direct-drive outer rotor steel sleeve wire drawing machine motor. Background Art

[0002] Existing wire drawing machines generally use a reduction mechanism, and the motor and the wire drawing steel sleeve are cooled independently, the steel sleeve is water-cooled, and the motor is cooled independently by air or liquid. This method not only makes the structure of the wire drawing machine complicated, but also the cooling system is prone to failure, affecting the stable operation of the wire drawing machine. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a cooling sharing device for a direct-drive outer rotor steel sleeve wire drawing machine motor, which has the advantages of simple structure, easy use, safety and reliability.

[0004] The objective of the present invention is achieved through the following technical solutions: the cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor comprises a main shaft, one end of the main shaft is supported on the upper end cover, the upper end cover is fixed to the top of the rotor casing, the other end of the main shaft is supported on the lower end cover, the lower end cover is fixed to the bottom of the rotor casing; the winding stator is sleeved on the outer periphery of the main shaft through a bracket and is arranged between the upper end cover and the lower end cover, and the rotor casing is sleeved on the outer periphery of the winding stator; a coolant channel is arranged through the main shaft for conveying coolant, and the upper end of the coolant channel is connected to the outer casing coolant pipeline through a water channel rotary joint; the upper The cover plate is fixed on the top of the steel shell, the steel shell is sleeved on the outer periphery of the rotor casing, a gap is provided between the steel shell and the rotor casing, the bottom of the steel shell is supported on the auxiliary support ring, the auxiliary support ring is sleeved on the outer periphery of the rotor casing, so that a closed cooling cavity is formed between the steel shell, the rotor casing and the auxiliary support ring to accommodate the coolant, one end of the water inlet pipe is connected with the shell coolant pipeline, and the other end of the water inlet pipe penetrates into the cooling cavity from the top of the steel shell to introduce the coolant; a plurality of drainage holes are provided on the auxiliary support ring, and the water outlet pipe penetrates into the cooling cavity from the drainage holes to discharge the coolant.

[0005] As a further technical solution, the top end of the water outlet pipe is located higher than the bottom end of the water inlet pipe, thereby forming a constant water level in the cooling cavity that is flush with the top end of the water outlet pipe.

[0006] As a further technical solution, the area of ​​the water outlet pipe is greater than or equal to 1.5 times the area of ​​the water inlet pipe.

[0007] As a further technical solution, the water inlet pipe is arranged on a side of the cooling cavity close to the steel jacket shell, and the water outlet pipe is arranged on a side of the cooling cavity close to the rotor casing.

[0008] As a further technical solution, magnetic steel is arranged between the winding stator and the rotor housing.

[0009] As a further technical solution, the bottom of the steel sleeve shell is fixed on the base.

[0010] The beneficial effects of the present invention are:

[0011] 1. Compact structure, using external rotor motor without reduction mechanism;

[0012] 2. Cooling sharing, constant water level cooling system ensures reliable cooling, while solving the heat dissipation problem of the heat generated by the motor rotor and brushed steel sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 A schematic diagram of the cooling chamber structure.

[0015] Explanation of the reference numerals: upper cover plate 1, steel casing 2, rotor casing 3, magnetic steel 4, winding stator 5, bracket 6, base 7, lower end cover 8, auxiliary support ring 9, main shaft 10, upper end cover 11, casing coolant pipeline 12, water channel rotating joint 13, water inlet pipe 14, water outlet pipe 15, coolant channel 16, coolant 17, cooling cavity 18, constant water level 19. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings:

[0017] Example: As attached Figure 1 , 2As shown, the cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor includes a main shaft 10, one end of the main shaft 10 is supported on an upper end cover 11, the upper end cover 11 is fixed to the top of the rotor casing 3, and the other end of the main shaft 10 is supported on a lower end cover 8, and the lower end cover 8 is fixed to the bottom of the rotor casing 3; the winding stator 5 is sleeved on the outer periphery of the main shaft 10 through a bracket 6, and is arranged between the upper end cover 11 and the lower end cover 8, the rotor casing 3 is sleeved on the outer periphery of the winding stator 5, and a magnetic steel 4 is arranged between the winding stator 5 and the rotor casing 3; a coolant channel 16 is arranged through the main shaft 10 for conveying a coolant 17, and the upper end of the coolant channel 16 is connected to the outer casing coolant pipeline 12 through a waterway rotary joint 13; The upper cover plate 1 is fixed on the top of the steel shell 2, and the steel shell 2 is sleeved on the outer periphery of the rotor casing 3. A gap is provided between the steel shell 2 and the rotor casing 3. The bottom of the steel shell 2 is supported on the auxiliary support ring 9, and the auxiliary support ring 9 is sleeved on the outer periphery of the rotor casing 3, so that a closed cooling cavity 18 is formed between the steel shell 2, the rotor casing 3 and the auxiliary support ring 9 for accommodating the coolant 17. One end of the water inlet pipe 14 is connected with the shell coolant pipeline 12, and the other end of the water inlet pipe 14 penetrates into the cooling cavity 18 from the top of the steel shell 2 for introducing the coolant 17; a plurality of drainage holes are provided on the auxiliary support ring 9, and the water outlet pipe 15 penetrates into the cooling cavity 18 from the drainage holes for discharging the coolant 17.

[0018] Reference Figure 2 , the top end of the water outlet pipe 15 is higher than the bottom end of the water inlet pipe 14, so that a constant water level 19 flush with the top end of the water outlet pipe 15 is formed in the cooling cavity 18. Preferably, the area of ​​the water outlet pipe 15 is greater than or equal to 1.5 times the area of ​​the water inlet pipe 14. The bottom of the steel jacket shell 2 is fixed to the base 7. The water inlet pipe 14 is arranged on one side of the cooling cavity 18 close to the steel jacket shell 2, and the water outlet pipe 15 is arranged on one side of the cooling cavity 18 close to the rotor housing 3.

[0019] The working process of the present invention is as follows: a closed cooling cavity 18 is formed between the upper cover plate 1, the steel casing 2, the rotor casing 3 and the auxiliary support ring 9, and the cooling cavity 18 cooperates with the water inlet pipe 14 and the water outlet pipe 15 to form a cooling system. The cooling system relies on the water inlet pipe 14 to transport the coolant 17 introduced from the coolant channel 16 in the middle of the main shaft 10 to the cooling cavity 18. In order to enhance the cooling effect, the water inlet pipe 14 is arranged on the side close to the steel casing 2 in the cooling cavity 18, and the bottom end of the water inlet pipe 14 is as close to the auxiliary support ring 9 as possible. The top end position of the water outlet pipe 15 determines the height of the constant water level 19. When the actual water volume exceeds the height of the constant water level 19, the coolant 17 after absorbing heat is discharged through the water outlet pipe 15. The coolant 17 cools the steel casing 2 and the rotor casing 3 in the cooling cavity 18 at the same time.

[0020] During the operation of the wire drawing machine, when the stretched steel wire is stretched on the steel sleeve, a large amount of heat will be generated in two places: one is the heat generated when the steel wire is stretched, which is transferred to the steel sleeve. The heat of the steel wire is not conducive to the stretching of the latter part; the other is the heat generated by the motor due to the electromagnetic force, which makes the rotor generate high temperature and affects the performance of the magnetic steel. The purpose of the present invention is to solve the heat generated by the motor rotor and the heat dissipation problem of the wire drawing steel sleeve at the same time, and it does not solve the cooling by an uncontrollable spraying method, but solves the cooling and heat dissipation problem by a constant water level method in a relatively reliable and economical way. It has good promotion and application value.

[0021] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and inventive concept of the present invention should fall within the protection scope of the claims attached to the present invention.

Claims

1. A cooling sharing device for a direct-drive outer rotor steel sleeve wire drawing machine motor, characterized in that: The invention comprises a main shaft (10), one end of which is supported on an upper end cover (11), which is fixed to the top of a rotor casing (3), and the other end of which is supported on a lower end cover (8), which is fixed to the bottom of the rotor casing (3); a winding stator (5) is sleeved on the outer periphery of the main shaft (10) through a bracket (6), and is arranged between the upper end cover (11) and the lower end cover (8), and the rotor casing (3) is sleeved on the outer periphery of the winding stator (5); a cooling liquid channel (16) is provided through the main shaft (10) for conveying a cooling liquid (17), and the upper end of the cooling liquid channel (16) is connected to the outer casing cooling liquid pipeline (12) through a water channel rotating joint (13); an upper cover plate (1) is fixed to the top of a steel casing (2), and the steel casing ( 2) is sleeved on the outer periphery of the rotor casing (3), a gap is provided between the steel casing (2) and the rotor casing (3), the bottom of the steel casing (2) is supported on the auxiliary support ring (9), the auxiliary support ring (9) is sleeved on the outer periphery of the rotor casing (3), so that a closed cooling cavity (18) is formed between the steel casing (2), the rotor casing (3) and the auxiliary support ring (9) for containing the coolant (17), one end of the water inlet pipe (14) is connected to the casing coolant pipeline (12), and the other end of the water inlet pipe (14) penetrates into the cooling cavity (18) from the top of the steel casing (2) for introducing the coolant (17); a plurality of drainage holes are provided on the auxiliary support ring (9), and the water outlet pipe (15) penetrates into the cooling cavity (18) from the drainage holes for discharging the coolant (17).

2. The cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor according to claim 1 is characterized in that: The top end of the water outlet pipe (15) is located higher than the bottom end of the water inlet pipe (14), thereby forming a constant water level (19) in the cooling cavity (18) that is flush with the top end of the water outlet pipe (15).

3. The cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor according to claim 1 is characterized in that: The area of ​​the water outlet pipe (15) is greater than or equal to 1.5 times the area of ​​the water inlet pipe (14).

4. The cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor according to claim 1 is characterized in that: The water inlet pipe (14) is arranged on a side of the cooling cavity (18) close to the steel casing (2), and the water outlet pipe (15) is arranged on a side of the cooling cavity (18) close to the rotor casing (3).

5. The cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor according to claim 1 is characterized in that: A magnetic steel (4) is arranged between the winding stator (5) and the rotor casing (3).

6. The cooling sharing device of the direct-drive outer rotor steel sleeve wire drawing machine motor according to claim 1 is characterized in that: The bottom of the steel casing (2) is fixed on the base (7).

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