CN201797399U - Low-lift explosion-proof submersible three-phase asynchronous motor - Google Patents

Abstract

The utility model relates to a low-lift explosion-proof three-phase submersible asynchronous motor, which belongs to the technical field of motors and expands the service range of an axial-flow submersible pump. The technical scheme includes that the low-lift explosion-proof three-phase asynchronous motor comprises an upper end cap, an upper bearing, a stator, a rotor, a shaft, a cooling water jacket, a lower bearing, a lower end cap and an outer casing, the upper end cap is arranged at the upper end of the outer casing, the upper bearing is arranged below the upper end cap, the upper bearing is sleeved with one end of the shaft, the other end of the shaft is sleeved with the lower bearing, the lower end cap is arranged below the lower bearing, the rotor is mounted on the shaft, the stator is mounted inside the outer casing, the cooling water jacket is arranged outside the outer casing, and an upper shaft temperature sensor, a submerged sensor, a winding temperature sensor, a leakage sensor, a temperature sensor and a lower shaft temperature sensor are arranged inside the outer casing. The technical scheme is applied to the technical field of three-phase submersible asynchronous motors.

Description

Low-lift explosion-proof submersible three-phase asynchronous motor

technical field

The utility model discloses a low-lift explosion-proof submersible three-phase asynchronous motor, which belongs to the technical field of electric motors. the

Background technique

The submersible sewage pump is developed on the basis of introducing foreign advanced technology and adopting an excellent hydraulic model. This series of products is mainly suitable for waste water with solid particles and various long fibers on the conveyor belt, urban domestic sewage and rainwater, including raw water Transportation, aquaculture and irrigation. In recent years, with the promotion of the application range of submersible sewage pumps, many chemical, coal mines, steel plants and other places with explosion-proof requirements have put forward explosion-proof requirements for such pumps, and they are matched with explosion-proof submersible sewage pumps. The special submersible three-phase asynchronous motor must also be flameproof. At present, the underwater operation stability of this type of motor on the market is poor, and the motor and the water pump are connected by a long shaft transmission component, so the reliability of operation is not high. the

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a low-lift explosion-proof submersible three-phase asynchronous motor, which expands the application range of the axial-flow submersible pump. the

In order to solve the above technical problems, the technical solution adopted by the utility model is: a low-lift flameproof submersible three-phase asynchronous motor, including: an upper end cover, an upper bearing, a stator, a rotor, a shaft, a cooling water cover, a lower bearing, a lower end cover and The shell is provided with an upper end cover on the upper end of the shell, the upper bearing is located under the upper end cover, the upper bearing is set together with one end of the shaft, the other end of the shaft is set together with the lower bearing, the lower end cover is located under the lower bearing, on the shaft The rotor is installed, the stator is installed inside the shell, the cooling water cover is set outside the shell, and the lifting ring is above the upper end cover, the lifting ring is installed with the shell, and the upper shaft temperature sensor, water immersion sensor, winding The temperature sensor, leakage sensor, temperature sensor and lower shaft temperature sensor, the contact surfaces where each part is installed and matched are all explosion-proof joint surfaces. the

The beneficial effect that the utility model has compared with prior art is:

The utility model has explosion-proof performance. Since the utility model operates underwater, the safety performance requirement is high. The application of various sensors in the utility model can ensure the stability of the motor running underwater. The utility model coaxial The use of flow submersible pumps expands the scope of use of axial flow submersible pumps, and the motor and water pump are coaxial, eliminating the need for long-axis transmission components between the motor and water pump, improving the safety and reliability of operation; the water pump is hoisted as a whole, On-site installation is convenient; it can simplify the civil structure of the pumping station, reduce the installation area, save the total project cost of the pumping station, and save operating and management costs. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

In the figure: 1 is the upper end cover, 2 is the upper bearing, 3 is the stator, 4 is the rotor, 5 is the shaft, 6 is the cooling water cover, 7 is the lower bearing, 8 is the lower end cover, 9 is the shell, and 10 is the suspension ring. the

Detailed ways

As shown in Figure 1, the low-lift flameproof submersible three-phase asynchronous motor includes: upper end cover 1, upper bearing 2, stator 3, rotor 4, shaft 5, cooling water cover 6, lower bearing 7, lower end cover 8 and casing 9. An upper end cover 1 is provided on the upper end of the casing 9, and the upper bearing 2 is located below the upper end cover 1. The upper bearing 2 is set together with one end of the shaft 5, and the other end of the shaft 5 is set together with the lower bearing 7. The lower end cover 8 Located below the lower bearing 7, the rotor 4 is installed on the shaft 5, the stator 3 is installed inside the casing 9, the cooling water cover 6 is arranged outside the casing 9, and there is a suspension ring above the upper end cover 1, the suspension ring and the casing 9 Installed together, an upper shaft temperature sensor, a water immersion sensor, a winding temperature sensor, a leakage sensor, a temperature sensor and a lower shaft temperature sensor are arranged inside the shell 9, these sensors ensure the stability of the motor running underwater, and the installation and coordination of each part All contact surfaces are flameproof joint surfaces. The utility model can be used together with the axial flow submersible pump, and expands the application range of the axial flow submersible pump. the

Claims (3)

1. low lift flame-proof type submersible threephase asynchronous, comprise: upper end cover (1), upper bearing (metal) (2), stator (3), rotor (4), axle (5), cooling water cover (6), lower bearing (7), bottom end cover (8) and shell (9), it is characterized in that: be provided with upper end cover (1) in shell (9) upper end, upper bearing (metal) (2) is positioned at the below of upper end cover (1), upper bearing (metal) (2) is sleeved on an end of axle (5), the other end of axle (5) is sleeved on lower bearing (7), bottom end cover (8) is positioned at the below of lower bearing (7), rotor (4) is installed on axle (5), in the inside of shell (9) stator (3) is installed, in shell (9) outer setting cooling water cover (6) is arranged, it all is the flame proof faying face that each part is installed the contact-making surface that cooperates.

2. low lift flame-proof type submersible threephase asynchronous according to claim 1 is characterized in that: in the top of upper end cover (1) suspension ring (10) are arranged, suspension ring (10) are installed together with shell (9).

3. low lift flame-proof type submersible threephase asynchronous according to claim 1 is characterized in that: be provided with shaft temperature sensor, immersion transducer, winding temperature transducer, leak sensor, temperature sensor and following shaft temperature sensor in shell (9) inside.

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