Permanent magnet synchronous motor for steel belt elevator

Abstract

The utility model relates to the technical field of elevator traction machines, in particular to a permanent magnet synchronous motor for a steel belt elevator, which comprises a liquid cooling frame, and a synchronous motor is detachably mounted in the liquid cooling frame. The temperature of water in liquid cooling circulation is enabled to be within a certain range when the electric constant-temperature equipment is used for ensuring that the temperature around the motor is within a proper running temperature range when the equipment runs, so that the stable running of the synchronous motor can be ensured, the fault rate during the running of the motor is reduced, and the service life of the synchronous motor is prolonged. Therefore, the maintenance cost is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator traction machines, and particularly relates to a permanent magnet synchronous motor for a steel belt elevator. Background Technique

[0002] Due to the need to save the occupied area of the elevator shaft, steel belt elevators have been gradually popularized. In a steel belt elevator, the traction uses a steel belt to replace the traditional steel wire rope, thereby reducing the occupied area. The car has no car walls and car tops, only a rear wall protection plate, so as to make full use of the space. Moreover, it has low requirements for the top floor and the pit, and has the three "no" characteristics of being stable, noiseless, power-saving, pollution-free, and simple in machine room.

[0003] Publication No. CN210129798U discloses a special cantilever permanent magnet synchronous motor for a toothed steel belt elevator, which can effectively prevent the steel belt from shifting due to the low operation accuracy of workers during installation, improve the installation accuracy, reduce the workload during installation, and effectively enhance the friction between the elevator steel belt and the motor to prevent the steel belt from shifting, making the elevator operation more stable. However, in winter and summer. For this reason, we propose a permanent magnet synchronous motor for a steel belt elevator. Content of the Utility Model

[0004] Aiming at the problems in the prior art, the utility model provides a permanent magnet synchronous motor for a steel belt elevator.

[0005] The technical solution adopted by the utility model to solve its technical problems is a permanent magnet synchronous motor for a steel belt elevator, which includes a liquid cooling frame. A synchronous motor is detachably installed inside the liquid cooling frame. A fixing groove is formed through the side wall of the liquid cooling frame, and an auxiliary fixing part that fits with the fixing groove is fixedly connected to the side wall of the synchronous motor.

[0006] The bottom end of the side wall of the liquid cooling frame is connected through a water outlet pipe, and the end of the water outlet pipe away from the liquid cooling frame is connected through to the inside of a transfer tank. The top end of the transfer tank is connected through to a cooling tank. A refrigeration housing is installed on the outer periphery of the cooling tank, and a central control motor is fixedly installed on the side wall of the refrigeration housing.

[0007] By adopting the above technical solution, through an electric constant temperature device, when the device is running, the temperature of the water in the liquid cooling cycle is kept within a certain range, so that when the motor is running, the temperature around it is within a suitable operating temperature range, thereby ensuring the stable operation of the synchronous motor, reducing the failure rate during the operation of the motor, further reducing the maintenance cost, and increasing the service life.

[0008] Specifically, a water inlet pipe is connected through the top side wall of the liquid cooling frame, and the end of the water inlet pipe away from the liquid cooling frame passes through the refrigeration housing and is connected through to the cooling tank.

[0009] By adopting the above technical solution, a cooling cycle is formed by the water inlet pipe, the liquid cooling frame, the water outlet pipe, the transfer tank and the liquid cooling pipe, so as to ensure that the ambient temperature during the operation of the motor is within a suitable range.

[0010] Specifically, a balance pipe for pressure balance is fixedly connected through and between the transfer tank and the refrigeration housing.

[0011] By adopting the above technical solution, the pressure balance between the transfer tank and the refrigeration housing is balanced through the balance pipe, avoiding equipment damage caused by pressure imbalance.

[0012] Specifically, a positioning groove is formed at the bottom end of the synchronous motor and is fitted with the internal limit plug column of the liquid cooling frame.

[0013] By adopting the above technical solution, the position of the synchronous motor in the liquid cooling frame is fixed through the positioning groove, thus facilitating the installation of the motor.

[0014] Specifically, the transfer tank, the cooling tank and the central control motor are all connected to an external power supply.

[0015] By adopting the above technical solution, power is provided to operate the equipment by connecting to the external power supply.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] Through the design of the liquid cooling frame, the water inlet pipe, the water outlet pipe, the transfer tank, the refrigeration housing, the cooling tank and the central control motor in the technical solution of the present application, the temperature of the water in the liquid cooling cycle is within a certain range, so as to ensure that when the motor operates, the temperature around it is within a suitable operating temperature range, thereby ensuring the stable operation of the synchronous motor, reducing the failure rate during the operation of the motor, further reducing the maintenance cost and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 is an isometric view of the present utility model;

[0020] Figure 2 is a schematic structural connection diagram of the liquid cooling frame and the synchronous motor of the present utility model;

[0021] Figure 3 is a schematic diagram of the liquid cooling cycle structure of the present utility model;

[0022] In the figure: 1. Liquid cooling frame; 2. Synchronous motor; 3. Positioning groove; 4. Auxiliary fixing piece; 5. Fixing groove; 6. Water inlet pipe; 7. Water outlet pipe; 8. Transfer tank; 9. Balance pipe; 10. Refrigeration housing; 11. Cooling tank; 12. Central control motor. Specific implementation mode

[0023] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0024] Please refer to Figures 1-3 , an embodiment of the present utility model provides a technical solution: a permanent magnet synchronous motor for a steel belt elevator, including a liquid cooling frame 1, a synchronous motor 2 is detachably installed inside the liquid cooling frame 1, a fixing groove 5 is penetrated and opened on the side wall of the liquid cooling frame 1, and an auxiliary fixing piece 4 that fits with the fixing groove 5 is fixedly connected to the side wall of the synchronous motor 2;

[0025] The bottom end of the side wall of the liquid cooling frame 1 is penetrated and connected with a water outlet pipe 7, one end of the water outlet pipe 7 away from the liquid cooling frame 1 is penetrated and connected to the inside of a transfer tank 8, the top end of the transfer tank 8 is penetrated and connected with a cooling tank 11, a refrigeration housing 10 is installed on the outer periphery of the cooling tank 11, and a central control motor 12 is fixedly installed on the side wall of the refrigeration housing 10.

[0026] During use, an electric constant temperature device is used to ensure that the temperature of the water in the liquid cooling cycle is within a certain range when the device is running, so as to ensure that the temperature around the motor is within a suitable operating temperature range when the motor is running, thereby ensuring the stable operation of the synchronous motor 2, reducing the failure rate during motor operation, and further reducing the maintenance cost and increasing the service life.

[0027] As shown in the figure, the top side wall of the liquid cooling frame 1 is penetrated and connected with a water inlet pipe 6, and one end of the water inlet pipe 6 away from the liquid cooling frame 1 penetrates through the refrigeration housing 10 and is connected to the cooling tank 11.

[0028] During use, a cooling cycle is formed by the water inlet pipe 6, the liquid cooling frame 1, the water outlet pipe 7, the transfer tank 8 and the liquid cooling pipe, so as to ensure that the ambient temperature during motor operation is within a suitable range.

[0029] As shown in the figure, a balance pipe 9 for pressure balance is penetrated and fixedly connected between the transfer tank 8 and the refrigeration housing 10.

[0030] During use, the balance pipe 9 is used to balance the pressure between the transfer tank 8 and the refrigeration housing 10, and avoid equipment damage caused by unbalanced pressure.

[0031] As shown in the figure, a positioning groove 3 that fits with the internal limiting insertion posts of the liquid cooling frame 1 is provided at the bottom end of the synchronous motor 2.

[0032] During use, the position of the synchronous motor 2 within the liquid cooling frame 1 is fixed through the positioning groove 3, thus facilitating the installation of the motor.

[0033] As shown in the figure, the transfer tank 8, the cooling tank 11, and the central control motor 12 are all connected to an external power supply.

[0034] During use, power is supplied to operate the equipment by connecting to the external power supply.

[0035] The working principle and usage process of the present utility model are as follows: First, align the positioning groove 3 at the bottom end of the synchronous motor 2 and insert it into the inside of the liquid cooling frame 1. Subsequently, the auxiliary fixing member 4 slides into the liquid cooling frame 1 and aligns with the fixing groove 5, and the liquid cooling frame 1 and the synchronous motor 2 are connected and fixed through the fixing member. Then, fix the auxiliary fixing member 4 at the designated position. When the synchronous motor 2 is running, the pump in the transfer tank 8 operates to extract the coolant from the liquid cooling frame 1, passes through the outlet pipe 7 and enters the transfer tank 8. Subsequently, the pump in the cooling tank 11 extracts the coolant in the transfer tank 8, and the central control motor 12 operates to control the refrigeration housing 10 to refrigerate, cooling the coolant inside the cooling tank 11. The hydraulic balance between the transfer tank 8 and the cooling tank 11 is balanced through the balance pipe 9. Then, the motor in the cooling tank 11 pumps out the cooled coolant and pumps it into the liquid cooling frame 1 through the inlet pipe 6, thereby reducing the ambient temperature of the motor operation.

[0036] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The descriptions in the above embodiments and the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet synchronous motor for a steel belt elevator, characterized in that: It comprises a liquid cooling frame (1), a synchronous motor (2) being detachably mounted inside the liquid cooling frame (1), a fixing groove (5) being provided through the side wall of the liquid cooling frame (1), and an auxiliary fixing member (4) which matches the fixing groove (5) being fixedly connected to the side wall of the synchronous motor (2); The bottom end of the side wall of the liquid cooling frame (1) is connected to a water outlet pipe (7), and the end of the water outlet pipe (7) away from the liquid cooling frame (1) is connected to the interior of the transfer tank (8). The top end of the transfer tank (8) is connected to a cooling tank (11), and a refrigeration shell (10) is installed on the outer periphery of the cooling tank (11), and a central control motor (12) is fixedly installed on the side wall of the refrigeration shell (10).

2. A permanent magnet synchronous motor for a steel belt elevator according to claim 1, characterized in that: A water inlet pipe (6) is connected to the top side wall of the liquid cooling frame (1), and one end of the water inlet pipe (6) away from the liquid cooling frame (1) passes through the refrigeration shell (10) and is connected to the cooling tank (11).

3. A permanent magnet synchronous motor for a steel belt elevator according to claim 1, characterized in that: A balancing pipe (9) for pressure balancing passes through and is fixedly connected between the transfer tank (8) and the refrigeration shell (10).

4. A permanent magnet synchronous motor for a steel belt elevator according to claim 1, characterized in that: The bottom end of the synchronous motor (2) is provided with a positioning groove (3) which fits with the internal limiting plug column of the liquid cooling frame (1).

5. A permanent magnet synchronous motor for a steel belt elevator according to claim 1, characterized in that: The transfer tank (8), the cooling tank (11) and the central control motor (12) are all connected to an external power source.

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