CN204906103U - Special high efficiency motor of KYGJ air compressor - Google Patents

Abstract

The utility model relates to a special high-efficiency motor for KYGJ air compressors, which is provided with front and rear end covers, front and rear bearing inner and outer covers, machine bases, suspension rings, junction boxes, stators, rotors, bearings, oil nozzles, encoder seats, and shaft couplings. It is characterized in that: the rotor is installed on the stator, the front and rear end covers and the front and rear bearing inner covers are respectively installed on the front end and the rear end of the stator, and then the bearing is pressed into the bearing chamber of the end cover by a press , put in the bearing retaining ring, then install the front and rear bearing covers on the front and rear end covers respectively, install the junction box on the machine base with screws, install the lifting ring, first install the encoder on the encoder seat, and then put the encoder The housing is installed on the rear bearing cover, and the rotor shaft is processed with a small shaft. The encoder and the shaft are connected together with a coupling, and finally the fan is installed, and the power leads of the motor, encoder and fan are connected to the power supply. The utility model has the advantages of reasonable and simple structure, convenient use, high degree of intelligent control, high efficiency and energy saving, practical and convenient, and remarkable energy-saving effect.

Description

A special high-efficiency motor for KYGJ air compressor

technical field

The utility model relates to a special high-efficiency motor for KYGJ air compressors, specifically a high-efficiency motor for air compressors, which is a special driving power device for air compressors, and is designed and manufactured according to the working characteristics of air compressors.

Background technique

The working characteristics of the air compressor are intermittent. When working, according to the size and pressure of the air consumption, the pressure of the network must be stable. This requires the motor to have a large starting torque and a strong overload capacity (the service factor is about 1.5). , easy to control and high precision, high efficiency and energy saving, can automatically adjust the working state of the motor according to the gas consumption. If an ordinary electric motor is used as the power device, only the air compressor can be operated, and the pressure of the compressed air is controlled through the pressure relief valve, while the electric motor is always in working condition, the air pressure always fluctuates between the maximum pressure and the minimum pressure, and the pressure is unstable , resulting in a decline in product quality, or even scrapping, and the motor consumes a lot of energy, which is contrary to the current national energy-saving and emission-reduction policies.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a KYGJ air compressor with reasonable structure, convenient operation and use, high control precision, obvious energy-saving effect, strong overload capacity and good safety performance. Dedicated high-efficiency motor.

The technical solution adopted by the utility model to solve the above technical problems is: a special high-efficiency motor for KYGJ air compressor, which is equipped with front and rear end covers, front and rear bearing inner and outer covers, machine base, suspension ring, junction box, stator, rotor, bearing, Grease nozzle, encoder seat, shaft coupling, encoder, and fan are characterized in that: the rotor is installed on the stator, the front and rear end covers and the front and rear bearing inner covers are respectively installed on the front and rear ends of the stator, and then press Press the bearing into the bearing chamber of the end cover, put in the bearing retaining ring, install the front and rear bearing outer covers on the front and rear end covers respectively, install the junction box on the machine base with screws, install the lifting ring, and install the encoder first. On the encoder seat, install the encoder seat on the rear bearing outer cover. A small shaft is processed on the rotating shaft of the rotor. The encoder and the rotating shaft are connected together with a coupling. Finally, the fan is installed, and the motor, encoder The power leads of the controller and the fan are connected to the power supply.

Because the utility model adopts the above-mentioned structure, firstly, the fan is connected to the power supply to make it work to play a cooling role, then the motor is started to run, and finally the power supply of the encoder is connected. Therefore, the speed of the encoder and the motor is synchronized, and the encoder collects the speed of the motor and the state of the output power. The iron core in the stator is made of high-permeability silicon steel punched and then laminated. The stator winding adopts a special winding type design, which can achieve a service factor of 1.5 (that is, the motor can be overloaded for 1.5 times the rated power for a short time without damage), with Strong overload capacity, small vibration, low noise, low heat generation and so on. Through the information collection of the encoder, the intelligent control system will issue instructions to control the running state of the motor according to the gas consumption, so as to achieve the goal of high efficiency and energy saving. At the same time, computer simulation and finite element analysis are used in the design of each component of the motor, and advanced technical design methods are used to minimize energy consumption. Compared with the prior art, the utility model has the advantages of reasonable and simple structure, convenient use, high intelligent control, high efficiency and energy saving, practical and convenient, and remarkable energy-saving effect.

Description of drawings

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

Fig. 2 is a left view of the utility model.

Marked in the figure: 1. Key, 2. Screw, 3. Seal ring, 4. Bearing, 5. Front bearing outer cover, 6. Bearing inner cover, 7. Front end cover, 8. Grease nozzle, 9. Rotating shaft, 10 .Junction box, 11. Stator, 12. Rotor, 13. Lifting ring, 14. Base, 15. Rubber plug, 16. Rear end cover, 17. Rear bearing outer cover, 18. Bearing retaining ring, 19. Encoder seat , 20. Coupling, 21. Encoder, 22. Fan, 23. Nameplate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1 and Figure 2, the utility model relates to a special high-efficiency motor for KYGJ air compressors, which is provided with a key 1, which is excessively matched with the key groove on the rotating shaft 9, and is used to install the driven equipment, and the screw 2 is used for The front bearing outer cover 5 is fixed on the front end cover 7, and the front bearing outer cover 5 is equipped with a sealing ring 3, which is used to prevent dust from entering the inside of the motor. A bearing 4 is respectively installed in the front and rear bearing gears of the rotor 12. The inner ring of the bearing 4 and the Rotating shaft 9 has an interference fit, the outer ring is excessively fitted with the front end cover 7 and the rear end cover 16 respectively, the front bearing outer cover 5 and the bearing inner cover 6 fix the front bearing 4, the rear bearing outer cover 17 and the bearing inner cover 6 fix the rear bearing 4 , to prevent its axial movement, the front end cover 7 and the rear end cover 16 are fixed on the base 14 with bolts respectively, to support the rotation of the rotor 12, and the shaft 9 is processed with a shaft shoulder to locate the inner ring of the bearing 4, and the bearing retaining ring 18 is positioned The inner ring of the rear bearing 4 prevents the bearing from moving axially on the rotating shaft 9. Grease nipples 8 are respectively installed on the front end cover 7 and the rear end cover 16, through which lubricating grease is injected into the bearing 4 to lubricate the bearing 4. The machine base 14 is equipped with Junction box 10, there are lead wires in the junction box 10, which can be directly connected to the external power supply to supply power to the motor, and at the same time to protect the connection terminal, the frame 14 is also equipped with a lifting ring 13, which is used to lift the motor to move , the rear end cover 16 is equipped with a fan 22, the fan 22 is used to cool the motor, the fan 22 is processed with a small round hole, so that oil can be injected through the oil nozzle 8, in order to prevent water and dust, the fan 22 is installed on the small round hole There is a rubber plug 15 for easy disassembly, the encoder seat 19 is installed on the rear bearing cover 17, the encoder 21 is installed on the encoder seat 19, the shaft of the encoder 21 and the rotating shaft 9 are connected by a coupling 20, and the two are synchronized Running, nameplate 23 is installed on the support 14, is marked with the relevant parameter of electric motor.

The said encoder 21 of the utility model is installed on the encoder seat 19, and the encoder seat 19 is processed by round steel, hollow, and three elongated slots are processed on the axial surface, so that the shaft coupling 11 is installed. Set screws, when installing, first fix the encoder 21 on the rear end surface of the encoder seat 19, the rear mounting surface of the encoder seat 19 is processed with a positioning notch, and the encoder 21 mounting surface also has a positioning platform, and the two are excessively matched for installation. Fix it with screws to ensure coaxiality. Then install the shaft coupling 11 on the circumference of the encoder 21, fix it with set screws, and then install the encoder seat 19 and the bearing outer cover 17 together. When installing, first insert the shaft coupling 11 into the rotating shaft 9 On the small shaft at the end, slowly push it in until the front end face of the encoder seat 19 is in contact with the outer end face of the rear bearing cover 17, and the front end face of the encoder seat 19 is processed with a positioning notch for matching with the rear bearing cover 17 , be fixed on the rear bearing outer cover 17 with bolts, guarantee coaxial with rotating shaft 9.

When the utility model is in use, the fan 22 is first connected to the power supply for cooling, then the encoder 21 is connected to the power supply to collect the motor running signal, and finally the motor is connected to the power supply, the motor starts to run, and the stator 11 of the motor is connected to the motor. After entering the three-phase power supply, due to the electromagnetic effect, the rotor 12 starts to run, and the driven device installed on the shaft extension end is driven by the motor through the action of the key 1, and at the same time drives the encoder 21 to work synchronously through the coupling 20, and the encoder 21 will collect The signal is transmitted to the control system, and the control system sends instructions to the motor according to the gas consumption to control the running state of the motor.

Claims (1)

1. A special high-efficiency motor for KYGJ air compressors, which is equipped with front and rear end covers, front and rear bearing inner and outer covers, machine base, suspension ring, junction box, stator, rotor, bearing, grease nozzle, encoder seat, shaft coupling, The encoder and fan are characterized in that: the rotor is installed on the stator, the front and rear end covers and the front and rear bearing inner covers are respectively installed on the front and rear ends of the stator, and then the bearing is pressed into the bearing chamber of the end cover with a press, and placed Insert the bearing retaining ring, then install the front and rear bearing outer covers on the front and rear end covers respectively, install the junction box on the machine base with screws, install the lifting ring, first install the encoder on the encoder seat, and then install the encoder seat Installed on the rear bearing outer cover, the rotor shaft is processed with a small shaft, the encoder and the shaft are connected together with a coupling, and finally the fan is installed, and the power leads of the motor, encoder and fan are connected to the power supply.