Schimpf motor Germany Schimpf model Schimpf price

Schimpf motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It generally refers to all machines that can convert mechanical energy into electrical energy and electrical energy into mechanical energy. The enclosure protection rating of the motor is IP44, and the cooling method is IC0141 totally enclosed fan-cooled (TEFC). The ambient air temperature varies with the seasons but does not exceed 15℃ to 40℃. The altitude does not exceed 1000m. Refer to the nameplate for rated frequency, rated voltage, insulation class, and duty cycle. When the supply voltage varies within ±0.05 of the rated value (frequency at rated value), the output power of the motor maintains the rated value.

Schimpf motor common problems

Motor issues: 1. After the speed-regulated motor accelerates, the speed gradually decreases until it stops. In this case, observe the changes in the ammeter pointer in the electrical cabinet of the speed-regulated motor. If the indicated current increases sharply, overload protection devices such as the thermal relay of the main motor will inevitably trip, disconnecting the three-phase power supply to the main motor and stopping its operation. At this time, carefully check whether the wiring terminals of the main motor circuit and the AC contactor of the main motor, as well as the wiring connections of all overload protection devices such as thermal relays in the electrical cabinet of the speed-regulated motor, are loose or have poor contact causing heating. If there are problems in these areas, the current will increase rapidly due to poor contact between wires and components in the circuit after the main motor accelerates, causing protective shutdown. When the speed-regulated motor runs at a lower speed, the working current of the main motor is small, so the situation of gradual speed decrease and shutdown will not occur. However, when the speed-regulated motor accelerates, the electrical load is high, and faults in electrical components will be exposed. In actual work, it is sometimes observed that the terminal blocks in the electrical cabinet of the speed-regulated motor heat up due to poor wire contact, even forming an oxide layer at the connection points, and the insulation of the wires burns and discolors. These problems will seriously affect the normal operation of the main drive motor. At this time, operators need to take immediate measures, such as cleaning the contact surfaces of the terminal blocks and wires, tightening the wiring screws, removing the burnt oxide layer from the wires, and replacing severely damaged terminal blocks. 2. The noise of the main drive motor is loud during operation. To adjust the dynamic balance of the slip motor, balancing weights are installed at both ends of its armature and pole rotor. If these devices are slightly loose, the slip motor will deviate from its original position during high-speed rotation. If the fault occurs on the outer surface of the main drive motor, it will cause local friction between the armature and the pole rotor, increasing the noise. At this time, it is necessary to stop the machine for repair, restore the dynamic balance of the armature and pole rotor, and re-locate and fix the original dynamic balance weights to ensure the normal operation of the main drive motor.

Schimpf motor working principle

The electromagnetic switch of the motor mainly consists of two parts: the electromagnet mechanism and the motor switch. The electromagnet mechanism is composed of a fixed core, a movable core, an attraction coil, and a holding coil. The fixed core remains stationary, while the movable core can move axially within the copper sleeve. A push rod is fixed to the front end of the movable core, with a switch contact disc installed at the front end of the push rod. The rear section of the movable core is connected to the shift fork via adjustment screws and connecting pins. A return spring is installed outside the copper sleeve to reset the movable components such as the movable core. When the magnetic flux generated by the energized attraction coil and holding coil has the same direction, their electromagnetic forces superimpose, pulling the movable core forward until the contact disc at the front end of the push rod connects the electric switch contacts, thereby completing the main circuit of the motor. When the magnetic flux generated by the energized attraction coil and holding coil has opposite directions, their electromagnetic forces cancel each other out. Under the action of the return spring, the movable components such as the movable core automatically reset, disconnecting the contact disc from the contacts and breaking the main circuit of the motor.

Schimpf motor maintenance methods

The radial gap between the motor rotor and stator is called the air gap. The air gap of general motors is between 0.25-0.8mm. After disassembling the motor and troubleshooting, be sure to assemble according to the original end cover marks to prevent scraping after reassembly. If the noise of brushed geared hub motors and brushless geared hub motors begins to increase, or if the gears inside the motor are replaced, apply grease to all gear tooth surfaces, generally using No. 3 grease or lubricating oil specified by the manufacturer. Before assembling the brushed motor, check the elasticity of the springs in the brush holders, check for rubbing between the carbon brushes and the brush holders, and check whether the carbon brushes can reach the maximum travel within the brush holders. Pay attention to the correct positioning of the carbon brushes and the commutator to avoid jamming the carbon brushes or brush holders.

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