Cooling water path structure capable of effectively controlling temperature rise of bearing on end cover of explosion-proof motor

Abstract

The utility model discloses a cooling water path structure capable of effectively controlling the temperature rise of a bearing on an end cover of an explosion-proof motor, and solves the problem of how to effectively control the temperature rise of the bearing on the end cover of the explosion-proof motor. Comprising a motor base (1), a driving end cover (2) and a non-driving end cover (3), an S-shaped cooling water channel (5) is arranged on an inner cavity of the motor base (1), a cooling water inlet (4) and a cooling water outlet (18) are respectively arranged on the motor base (1), a driving end cover annular water channel (8) is arranged in the driving end cover (2), and a non-driving end cover annular water channel (14) is arranged in the non-driving end cover (3). The S-shaped cooling water channel (5), the driving end cover annular water channel (8) and the non-driving end cover annular water channel (14) are communicated in series; and the temperature rise of the motor bearing is controlled and reduced.

Description

Technical Field

[0001] The utility model relates to an explosion-proof motor, in particular to a cooling water channel structure which can effectively control the temperature rise of a bearing on an end cover of the explosion-proof motor. Background Art

[0002] The high-voltage flameproof asynchronous motor has a high speed and the rotor generates a lot of heat. Its internal fan is mainly used for air flow inside the motor, and the rotor has difficulty in dissipating heat, resulting in a large temperature rise in the bearings on the motor end cover, which can easily cause bearing damage. How to solve the heat dissipation problem of this type of motor has become a difficult problem that needs to be solved on site. Summary of the invention

[0003] The utility model provides a cooling water channel structure which can effectively control the temperature rise of the bearing on the end cover of the explosion-proof motor, and solves the technical problem of how to effectively control the temperature rise of the bearing on the end cover of the explosion-proof motor.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A cooling water channel structure capable of effectively controlling the temperature rise of a bearing on an explosion-proof motor end cover, comprising a motor base (1), a drive end cover (2) and a non-drive end cover (3); an S-shaped cooling water channel (5) is arranged on the inner cavity of the motor base (1); a cooling water inlet (4) and a cooling water outlet (18) are respectively arranged on the motor base (1); a drive end cover annular water channel (8) is arranged in the drive end cover (2); a non-drive end cover annular water channel (14) is arranged in the non-drive end cover (3); and the S-shaped cooling water channel (5), the drive end cover annular water channel (8) and the non-drive end cover annular water channel (14) are connected in series.

[0006] A connecting water channel (11) and a water outlet channel (17) are provided on the inner cavity of the motor base (1); a driving end cover annular water channel water inlet (7) and a driving end cover annular water channel water outlet (9) are provided on the driving end cover (2); a non-driving end cover annular water channel water inlet (13) and a driving end cover annular water channel water outlet (15) are provided on the non-driving end cover (3); the cooling water inlet (4) is connected to the beginning of the S-shaped cooling water channel (5), and the terminal end of the S-shaped cooling water channel (5) is connected to the cooling water inlet (4). The opening (6) is connected to the water inlet (7) of the annular water channel of the drive end cover, the annular water channel outlet (9) of the drive end cover is connected to the inlet (10) of the connecting water channel (11) from the drive end to the non-drive end, the outlet (12) of the connecting water channel (11) from the drive end to the non-drive end is connected to the water inlet (13) of the annular water channel of the non-drive end cover, the annular water channel outlet (15) of the non-drive end cover is connected to the water inlet (16) of the outlet water channel (17), and the outlet of the outlet water channel (17) is a cooling water outlet (18).

[0007] An O-ring is provided between the terminal outlet (6) of the S-shaped cooling water channel (5) and the water inlet (7) of the annular water channel of the drive end cover; an O-ring is provided between the annular water channel outlet (9) of the drive end cover and the inlet (10) of the connecting water channel (11) from the drive end to the non-drive end; an O-ring is provided between the outlet (12) of the connecting water channel (11) from the drive end to the non-drive end and the water inlet (13) of the annular water channel of the non-drive end cover; and an O-ring is provided between the water outlet (15) of the annular water channel of the non-drive end cover and the water inlet (16) of the outlet water channel (17).

[0008] The utility model optimizes the power density of the motor and controls and reduces the temperature rise of the motor bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an expanded view of the cooling water circuit of the utility model;

[0010] Figure 2 It is a schematic diagram of the waterway structure on the drive end cover (2) of the utility model;

[0011] Figure 3 It is a schematic diagram of the waterway structure on the non-driving end cover (3) of the utility model;

[0012] Figure 4 It is a structural schematic diagram of a motor base (1) of the utility model;

[0013] Figure 5 yes Figure 4 A right side view of the motor base (1);

[0014] Figure 6 yes Figure 4 Left side view of the motor frame (1) in FIG. Implementation

[0015] The utility model is described in detail below with reference to the accompanying drawings:

[0016] A cooling water channel structure capable of effectively controlling the temperature rise of a bearing on an explosion-proof motor end cover, comprising a motor base (1), a drive end cover (2) and a non-drive end cover (3), an S-shaped cooling water channel (5) being arranged on the inner cavity of the motor base (1), a cooling water inlet (4) and a cooling water outlet (18) being arranged on the motor base (1), a drive end cover annular water channel (8) being arranged in the drive end cover (2), a non-drive end cover annular water channel (14) being arranged in the non-drive end cover (3), the S-shaped cooling water channel (5) and the drive end cover annular water channel (8) and the non-drive end cover annular water channel (14) are connected in series; cooling water enters the water channel in the motor housing through the cooling water inlet (4) provided on the motor base (1), flows through the S-shaped cooling water channel (5), then enters the drive end (AS) end cover, and then enters the non-drive end (BS) end cover through the connecting water channel (11), thereby achieving cooling of the motor housing and the two end covers; since the flameproof motor has strict requirements on the flameproof size and sealing, the series connection of the water channel needs to be sealed, so a sealing groove is designed at the docking water inlet to form a complete sealed water channel.

[0017] A connecting water channel (11) and a water outlet channel (17) are provided on the inner cavity of the motor base (1); a driving end cover annular water channel water inlet (7) and a driving end cover annular water channel water outlet (9) are provided on the driving end cover (2); a non-driving end cover annular water channel water inlet (13) and a driving end cover annular water channel water outlet (15) are provided on the non-driving end cover (3); the cooling water inlet (4) is connected to the starting end of the S-shaped cooling water channel (5), and the terminal outlet (6) of the S-shaped cooling water channel (5) is connected to the driving end cover annular water channel water inlet (7) The drive end cover annular water channel outlet (9) is connected to the inlet (10) of the connecting water channel (11) from the drive end to the non-drive end, the outlet (12) of the connecting water channel (11) from the drive end to the non-drive end is connected to the water inlet (13) of the non-drive end cover annular water channel, the non-drive end cover annular water channel outlet (15) is connected to the water inlet (16) of the outlet water channel (17), and the outlet of the outlet water channel (17) is the cooling water outlet (18); due to the limited space at the docking water port, and in order to ensure the water pressure in the cooling water channel, the water inlet and the water outlet are designed as parallel double water ports.

[0018] An O-ring is provided between the terminal outlet (6) of the S-shaped cooling water channel (5) and the water inlet (7) of the annular water channel of the drive end cover; an O-ring is provided between the annular water channel outlet (9) of the drive end cover and the inlet (10) of the connecting water channel (11) from the drive end to the non-drive end; an O-ring is provided between the outlet (12) of the connecting water channel (11) from the drive end to the non-drive end and the water inlet (13) of the annular water channel of the non-drive end cover; and an O-ring is provided between the water outlet (15) of the annular water channel of the non-drive end cover and the water inlet (16) of the outlet water channel (17). Explosion-proof motors are generally used underground, and the motors are generally used at a relatively low terrain, so that a relatively high water inlet pressure can be achieved, so that the water flow of the water channel of the utility model has a good cooling effect.

Claims

1. A cooling water channel structure capable of effectively controlling the temperature rise of the bearing on the end cover of an explosion-proof motor, comprising a motor base (1), a drive end cover (2) and a non-drive end cover (3), an S-shaped cooling water channel (5) being arranged on the inner cavity of the motor base (1), and a cooling water inlet (4) and a cooling water outlet (18) being arranged on the motor base (1), characterized in that: A driving end cover annular water channel (8) is provided in the driving end cover (2), a non-driving end cover annular water channel (14) is provided in the non-driving end cover (3), and the S-shaped cooling water channel (5), the driving end cover annular water channel (8) and the non-driving end cover annular water channel (14) are connected in series.

2. A cooling water channel structure capable of effectively controlling the temperature rise of the bearing on the end cover of an explosion-proof motor according to claim 1, characterized in that: A connecting water channel (11) and a water outlet channel (17) are provided on the inner cavity of the motor base (1); a driving end cover annular water channel water inlet (7) and a driving end cover annular water channel water outlet (9) are provided on the driving end cover (2); a non-driving end cover annular water channel water inlet (13) and a driving end cover annular water channel water outlet (9) are provided on the non-driving end cover (3); the cooling water inlet (4) is connected to the beginning of the S-shaped cooling water channel (5), and the terminal outlet of the S-shaped cooling water channel (5) is connected to the cooling water inlet (4) and the terminal outlet of the S-shaped cooling water channel (5) is connected to the cooling water inlet (4) and the terminal outlet of the S-shaped cooling water channel (5) is connected to the cooling water inlet (4) and the terminal outlet of the S-shaped cooling water channel (5) is connected to the cooling water inlet (4) and the cooling water inlet (13) and the driving end cover annular water channel (9) are ... (6) is connected to the water inlet (7) of the driving end cover annular water channel, the water outlet (9) of the driving end cover annular water channel is connected to the inlet (10) of the connecting water channel (11) from the driving end to the non-driving end, the outlet (12) of the connecting water channel (11) from the driving end to the non-driving end is connected to the water inlet (13) of the non-driving end cover annular water channel, the water outlet (15) of the non-driving end cover annular water channel is connected to the water inlet (16) of the outlet water channel (17), and the outlet of the outlet water channel (17) is the cooling water outlet (18).

3. A cooling water channel structure capable of effectively controlling the temperature rise of the bearing on the end cover of an explosion-proof motor according to claim 2, characterized in that: An O-ring is provided between the terminal outlet (6) of the S-shaped cooling water channel (5) and the water inlet (7) of the annular water channel of the drive end cover; an O-ring is provided between the water outlet (9) of the annular water channel of the drive end cover and the inlet (10) of the connecting water channel (11) from the drive end to the non-drive end; an O-ring is provided between the outlet (12) of the connecting water channel (11) from the drive end to the non-drive end and the water inlet (13) of the annular water channel of the non-drive end cover; and an O-ring is provided between the water outlet (15) of the annular water channel of the non-drive end cover and the water inlet (16) of the outlet water channel (17).

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