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Long igba titiipa-rotor 3-alakoso iyipo motor

Long igba titiipa-rotor 3-alakoso iyipo motor

The working principle of the cable reel: The power part and the speed control part of the long-term locked-rotor torque motor cable reel are borne by the motor, which has unique electrical and mechanical characteristics. The motor has a wide speed control range. It has softer mechanical characteristics. When the load changes, the working speed of the motor also changes accordingly, that is, the load increases and the speed decreases, and the load decreases. The speed rises. And the motor can be stable for a long time at any point on the mechanical characteristic curve of its torque and speed. The operation of the cable can ensure that the cable obtains the appropriate winding speed and tension on the corresponding radius of the reel. Rewinding the cable, the motor output torque is the power, and the reel can be driven by the deceleration part to collect the cable. Release the cable and the motor output torque In order to hinder the force, prevent the cable from pulling the reel quickly, and ensure the synchronization of the unwinding. When the machine is stopped for a long time, the motor has a disc normally closed brake, which can ensure that the cable will not be removed from the reel due to the force of the force when the motor is powered off. The plate slips off.

Electrical parameters Model number of poles stall torque stall current stall time YLEJC112-4/66 pole 4N.M1A 8 hours or more YLEJC132-9/66 pole 9N.M2A 8 hours or more YLEJC132-12/66 pole 12N.M3A 8 hours or more The brake is magnetic Yoke, excitation coil, spring, brake disc, armature, gear sleeve, manual release device, screws, etc. The brake is installed on the rear cover of the motor, and the mounting screw is adjusted to the appropriate clearance value, and the motor drive shaft The gear sleeve is connected to the brake disc. When the excitation coil of the brake passes the rated voltage, the electromagnetic force attracts the armature to separate (release) the armature and the brake disc. At this time, the motor shaft drives the brake disc to operate normally, and when the motor is powered off At this time, the brake is also powered off at the same time. At this time, the spring compresses the armature, forcing the friction torque between the brake disc and the armature and the flange, so that the motor shaft stops quickly. 2. The power (signal) transmission part is concentrated in the slip ring box: From the purpose, it can be divided into power transmission and signal transmission. According to the voltage level, it is 380V, 500V, 3KV, 6KV, 10KV, etc.

When disassembling the motor, take care to prevent damage to the stator winding or insulation.

Long igba titiipa-rotor 3-alakoso iyipo motor

The accessories are suitable for crane features: JM 囗 series long-term locked-rotor torque motor-type cable reels are widely used in bucket wheel stackers and reclaimers, gantry cranes, ship loader, container cranes, tower cranes and other large mechanical equipment that need to move in parallel . The power source and signal source are located at the midpoint or end of the stroke, and the power source and control signal are transmitted through the retractable cable of the cable drum. Selection guide The height of cable reel installed is less than or equal to 3m. According to the cable specifications (outer dimensions, weight per unit length, power cable core number, control cable core number), cable length, voltage level, select the required cable reel model from each table.

When the motor is used again after being parked for a long time, the insulation resistance should be measured.

Cable-containing part 1. Reel: It can be divided into multi-row winding and single-row winding. In order to facilitate transportation, the reel with a diameter of 2.4 ≤ is an integral structure, and the reel with a diameter of> 2.4 is a loose part, which will be assembled on site. 3. Cable guide frame: 4. Electrical schematic diagram of the cable reel
When the rotation direction of the motor does not meet the requirements, just adjust the phase sequence of the power supply.

Features: The tension of the cable is constant from the empty reel to the supper reel, which is suitable for long-term low-speed and frequent reversal conditions. Different from ordinary motors, the locked-rotor current is small, and it can be locked-rotor and reverse for a long time. The locked-rotor test has been carried out for 24 hours before assembly. The motor temperature rise is <65K, and the locked-rotor torque drops within 5% under hot conditions.

1. The operating environment should be kept dry, the surface of the motor should be kept clean, and the air inlet should not be obstructed by dust, fibers, etc.
2. When the thermal protection and short-circuit protection of the motor continue to operate, it should be ascertained whether the fault comes from the motor or the overload or the setting value of the protection device is too low. It can be put into operation after the fault is eliminated.
3. It should be ensured that the Qianye brand long-term locked-rotor torque motor is well lubricated during operation, and the grease should be replaced in time. When replacing the grease, the old grease should be removed, and the oil groove of the bearing and the bearing cover should be cleaned with kerosene, and then the grease should be filled 2/3 of the bearing inner and outer cavity (4, 6, 8).
4. When the life of the bearing is over, the vibration and noise during the operation of the motor will increase significantly. Check the radial clearance of the bearing and replace the bearing.

Long igba titiipa-rotor 3-alakoso iyipo motor

And follow the instructions and diagrams to connect the power supply, controller and motor. Key points for maintenance of long-term locked-rotor torque motor brakes: release the handle of the wrench to see if it is flexible. When it is confirmed that it is correct, the power is turned on and no-load operation is performed. After the motor has been running with no load for a period of time, it should be stopped and checked once. Observe whether each mechanical connection part is loose, whether the bearing has overheated oil leakage, and whether the brake is completely disengaged.

Torque motor is a kind of asynchronous motor introduced according to production requirements. In some occasions, it is even required to remain locked for a period of time. This is due to its output characteristics different from ordinary motors, that is, its output soft characteristics, that is, the load changes speed. It automatically changes. The maximum torque is output when the rotor is locked. Because its rotor uses different materials, the impedance of the motor can be very large. Thus, the locked-rotor current is reduced. How long can be stalled is impossible to determine. Look at the heat dissipation method (forced ventilation is often used), which is the same as the allowable temperature rise of ordinary motors! If it exceeds it, it can't be blocked!

The cable drum is larger than 3m. 1. Calculate the required torque of the cable reel according to the formula T=HDW1/J where: T: torque unit: kgm Note: the output torque of the cable reel should be 1.1 times greater than the calculated torque H: the installed height of the cable reel? Unit: m D: cable drum diameter? Unit: m W: cable unit length weight? Unit: kg/m J: capacity is 0.85 2. According to the calculated torque, the cable specification (the number of power cable cores, control Cable core number), cable length, voltage level, according to (model description) to determine the cable reel model. Special purpose cable reel, please inform the cable parameters in detail when ordering, the length of the cable capacity, voltage size, cart running speed As well as the installed height, our company assists in determining the cable reel model.

Long igba titiipa-rotor 3-alakoso iyipo motor

The standard torque motor is designed with a locked-rotor function for a rated time, and the motor will heat up to burn if the rated locked-rotor time exceeds the label. Special designs can be specially designed for special work occasions that require long-term low-speed operation and long-term locked-rotor phenomenon. The motor has a small market share, but the design function is mature, and it can be locked for more than 8 hours. This motor is called a long-term locked-rotor torque motor (continuous locked-rotor torque motor), which is mainly used in industries such as bulk material transportation, cloth distribution, large cranes, dams, and railway loaders.

The rear end of the torque motor is equipped with an independent axial or centrifugal fan for forced ventilation and cooling. The torque motor is equipped with a torque motor controller for voltage and speed regulation, with a wide speed regulation range, and the speed change rate ≤10%.

The characteristics of this series of motors make it suitable for winding, unwinding, stalling, speed regulation and other occasions and other applications. They are widely used in textiles, wires and cables, cable reels, metal processing, papermaking, rubber, plastics, and printing machinery, etc. In the industrial field, the product needs to be wound on a reel (reel).

Long igba titiipa-rotor 3-alakoso iyipo motor

The diameter of the winding will be larger and larger from the beginning to the end. In order to keep the tension of the rolled object uniform (and the linear speed is constant), the slower the winding speed is, the larger the winding force is. When the product is wound, the diameter of the reel gradually increases. It is very important to keep the tension of the rolled product constant during the entire process, because too much tension will thin the wire diameter or even break the wire, or cause uneven thickness of the product. Too little tension can cause the winding to relax.

In order to keep the tension constant during the winding process, the output torque of the motor driving the reel must be increased when the diameter of the product wound on the reel increases. At the same time, in order to keep the line speed of the winding product constant, The speed of the reel is reduced accordingly, and the mechanical characteristics of the torque motor can just meet this requirement.

2. Uncoiling: Uncoiling is used to loosen the rolled product for reprocessing. At this time, the torque motor acts as a brake and also acts as a tension control. The torque motor is in the reverse state, as shown in Figure 3. Through the pressure regulating device to control the size of the braking torque, so that it meets the needs.

Long igba titiipa-rotor 3-alakoso iyipo motor

3. Locked-rotor: In some special occasions, it is necessary to maintain a static torque for a period of time. Such as the initial stage of cable winding, to keep the cable tensioned; large forging press clamping device.

4. Speed ​​regulation: The mechanical properties of the torque motor are very soft. When the load is loaded, the speed of the motor decreases and the output torque increases, and the output torque is proportional to the square of the voltage. When the load is constant, the terminal voltage of the torque motor can be adjusted to obtain different speeds in a wider range. The principle is shown in Figure 4. Torque motors are not suitable for long-term low-speed operation.

Uncoiling is also called unwinding, unwinding, unwinding, etc. In industrial production, sometimes it is necessary to transport the product wound on the drum to the next process. During the conveying process, a tension opposite to the transmission direction is required to be applied to the product. At the same time, it is required to keep the linear speed and reverse tension of the product transmission constant as the cylinder diameter changes, which requires the motor to have the characteristic of braking and constant power. The locked-rotor performance of the torque motor can also provide a good solution.

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