Tag: what is

Squirrel cage induction motor is the simplest and most widely used type of asynchronous motor. Its rotor coil is cast aluminum and shaped like a squirrel cage, so it is called a "squirrel cage motor". These motors are a specific kind of induction motor, which uses the electromagnetic induction effect to transform electrical current into rotational energy. This article will explain the principles of squirrel cage motors, their specifications, and what kinds of applications they are used for. This way, we can make informed choices when choosing the right motor.

Dosing pumps are available in thick sections and non-adjustable flow, the former is more widely applicable. The flow star is mainly adjusted by changing the stroke length, such as changing the crank radius, the plunger returns when the backstop position and the plunger rod and crosshead connection between the evolution, but also by changing the number of reciprocations or both methods to adjust the flow.

Speed reducers primarily serve two purposes. First, they can multiply the torque generated by the input power source to increase the amount of usable work. Second, they are used to reduce the input power source speed to achieve desired output speeds. For this reason, a smaller, less expensive motor with a speed reducer may enjoy wider application fields than a larger motor without one.

Explosion-proof motor is a type of motor with explosion-proof performance. It is a kind of motor that can be used in flammable and explosive places, and it does not produce electric sparks during operation. It has a structure different from that used in ordinary environments. It can prevent the combustible gas and dust outside the motor from entering the motor to the greatest extent, or even if it enters, it will not ignite the combustible gas and dust in the surrounding environment from the flame out of the casing when short-circuited and caught in the interior.

The gear motor is a widely used reduction drive equipment, and the drive structure is assembled by a drive motor and a gear box, also known as a "reducer". There are many types of drive motors. DC motors, brushed motors, brushless motors, stepper motors, coreless motors, and servo motors can all be used as drive motors. The gearbox can adopt planetary gearboxes, cylindrical gearboxes, parallel gearboxes, worm gearboxes, screw gearboxes, and so on. Depending on the different drive motors, it can be divided into DC gear motors, stepping geared motors, brushed gear motors, brushless gear motors, hollow cup geared motors. It also can be divided into planetary gear motor, gear reducer, worm gear motor, parallel gear reducer, screw gear reducer according to the structure of the gearbox. Reducer motors with different structures have different application characteristics.

A linear servo motor is a direct drive solution where the load is directly connected to the moving portion of the motor. Direct drive linear motors are available in a variety of configurations (iron core, U-channel, tubular) but ultimately work the same. Linear motors operate with an AC power supply and servo controller, which are often the same as those used for rotary servo motors. The linear motor primary part is connected to the power supply to produce a magnet field. By changing the current phase in the coils, the polarity of each coil is changed.

DC cooling fan is an important cooling device for modern industrial machinery, which is widely used in machinery cooling because of its good cooling effect, long service life, simple structure, easy installation and many other features, can also be used in automobiles, power supplies and household equipment. Brushless DC cooling fans have the characteristics of low noise, stable operation and longer service life. You can choose from a variety of sizes and speeds.

A variable speed motor is a motor that has a variable frequency drive or similar technology installed to control motor speed and torque, by placing these key factors of motor performance under the control of the operator, variable speed motors offer a means for products and production facilities to greatly reduce the amount of energy being consumed by the motors in their devices. Unlike single-speed motors that run at full capacity and then cycle off, a variable-speed motor can operate at high speeds, low speeds or anywhere in between, ramping up and down like a dimmer switch. Variable speed motors are widely used in places that require energy-saving continuous operation and frequent work, such as fans, air compressors, injection molding machines, reducers, water pumps, vacuum pumps, etc.

Selection of industrial heaters to understand what classification it has, to understand the characteristics of different industrial heaters, according to the application of the scene to choose the right product. Industrial heaters are common oil heater, electric heater, gas heater. In the following, ATO online store will introduce something about this topic.

The temperature controller is a kind of intelligent temperature control instrument. It has the functions of temperature curve programmable or fixed-point constant temperature control, multiple PID regulation, output power limiting curve programming, manual / automatic switching, soft start, alarm switch output, real-time data query, communication with computer, etc. It combines digital temperature meter and ZK thyristor voltage regulator into one, which integrates temperature measurement, regulation and driving. The meter directly outputs thyristor trigger signal, which can drive all kinds of thyristor loads. It is used in all kinds of high and low voltage switchgear, dry-type transformer, box type substation and other related temperature application fields. In addition to understanding what the temperature controller is, we also need to know its three "how": how to work, how to use, and how to choose the temperature controller for better use of ATO.   

Permanent magnet synchronous motor is an AC motor that generates torque by the interaction of the excitation magnetic field supplied by a direct current and the rotating magnetic field of the armature, and rotates at a synchronous speed. It belongs to AC motors, and the stator windings are the same as synchronous motor. Because its rotor rotation speed is the same as the speed of the rotating magnetic field generated by the stator winding, it is called synchronous motor.

Transformer is a device that transform AC voltage, current and impedance. It uses the principle of electromagnetic induction to transform AC power of one voltage level into AC power of another voltage level. When an AC current is passed through the primary coil, an AC magnetic flux is generated in the iron core, causing a voltage (or current) to be induced in the secondary coil. It is composed of an iron core and a coil. The coil has two or more windings. The winding connected to the power supply is called the primary winding, and the remaining windings are called the secondary winding.

Transformer mainly uses the principle of electromagnetic induction to work. The specific process is when an AC voltage U1 is applied to the primary side of the transformer, and the current flowing through the primary winding is I1, the current will generate alternating magnetic flux in the iron core, which makes the primary winding and the secondary winding electromagnetically connections.

The air blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (and oil tank), drip nozzle. The blower operates eccentrically on the rotor offset in the cylinder, and changes the volume between the blades in the rotor slot to suck in, compress, and discharge air. During operation, the pressure difference of the blower is used to automatically send the lubrication to the drip nozzle and drip into the cylinder to reduce friction and noise, while keeping the gas in the cylinder from returning. This type of air blower is also called a sliding vane blower. There are many types of air blowers, mainly divided into the following categories.

Vibration meter is an instrument used to measure the peak value, peak-to-peak value, average value or root mean square value of vibration such as velocity, acceleration and displacement. The vibration meter can be applied in mechanical manufacturing, electric metallurgy, general aviation etc. The main parts of this instrument are integral differential circuit, amplifying circuit, voltage detector and meter head. The integral differential circuit is used to complete the integral differential operation between the above vibration quantities. Generally, integral and differential operational amplifiers can be used, low-pass filters and high pass filters can also be used to complete integral differential operations. However, we should pay attention to this instrument's application frequency range when we are using it for calculation. The vibration meter can only obtain the total intensity (vibration level) of the vibration, but cannot obtain other information, so its scope of using is limited.

A current transformer is an instrument that converts a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer is composed of a closed core and windings. Its primary winding has a few turns and is stringed in the line of the current that needs to be measured. According to different uses, current transformers can be roughly divided into two categories: current transformers for measurement and current transformers for protection.

Displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. According to the different forms of the measured variable, the displacement sensor can be divided into two types: the analog type and the digital type. The former can also be divided into two types: the physical type and the structure type. Commonly used displacement sensors are mostly analog structures, including potentiometer type displacement sensors, inductive displacement sensors, self-aligning machine, capacitive displacement sensors, eddy current displacement sensors, and Hall-type displacement sensors.

Industrial vacuum cleaner is an environmentally friendly cleaning equipment commonly used in industry. The equipment is used to collect waste, filter and purify the air in the industrial production process, and clean the dust and particles in the environment. Industrial vacuum cleaners are widely used in various fields such as textiles, chemicals, machinery, medicine, casting, etc., which can prevent some occupational disease hazards and improve production efficiency.

Spectrophotometer is also called spectrometer, which is a scientific instrument that decomposes complex light into spectral lines. Using spectrophotometry, the spectrophotometer measures the absorbance of the measured substance at a specific wavelength or within a certain wavelength range to perform qualitative and quantitative analysis of the substance. The basic principles of different types of spectrophotometers are similar. They all use a light source that can generate multiple wavelengths, through a series of light splitting devices, to form a light source of a specific wavelength. After the light source passes through the test sample, part of the light source is absorbed. Subsequently, by measuring the absorbance of the sample, it can be converted into the concentration of the sample after calculation. The absorbance of the sample is proportional to the concentration of the sample.

A magnetic stirrer also known as magnetic mixer is a kind of laboratory equipment which is mainly used for stirring or heating stirring in low-viscosity liquid or solid-liquid mixing experiments. A rotating magnetic field is generated under the container plate, and the principle of homosexual repulsion and heterosexual attraction is used to push the magnetic stirring rod in the container to rotate rapidly, thereby achieving the purpose of stirring. The plate usually has a heating function to meet more experimental needs.

Hipot tester, also called dielectric strength tester, is used to carry out the test of applying a specified AC or DC high voltage between the live part and the non-live part of the electric appliance to check the hipot of the insulating material of the electric appliance. In long-term work, electrical appliances must not only bear the effect of rated working voltage, but also bear the effect of overvoltage that is higher than the rated working voltage for a short time during operation(The overvoltage value may be several times higher than the rated working voltage value). Under the action of these voltages, the internal structure of electrical insulating materials will change. When the overvoltage intensity reaches a certain value, it will cause the insulation breakdown of the material. The electrical appliances will not operate normally, and the operator may get an electric shock, endangering personal safety. The main electrical safety test indicators include AC/DC hipot, insulation resistance, leakage current, ground resistance, etc. AC/DC hipot tester is used to test the electrical safety performance of the product under actual working conditions, so it is one of the important instruments for testing the electrical safety performance of the equipment.