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tbiLead screw TBIThe screw is to convert the rotary motion into a straight line motion，Or the ideal product for converting linear motion into rotary motion。TBIThe screw consists of a screw、Nut and ball。Its function is to convert rotational motion into linear motion，This is a further extension and development of ball screws，The significance of this development is to change the bearing from a rolling action to a sliding action。The screw is formed by many threads，The thread determines the use of the lead screw，The following Xiaobian will take you to understand the thread parameters。
Lead screw module There are several names for linear modules，Linear module、Lead screw module、Straight slide table, etc。The linear load can be realized through the combination of individual units、Curved motion，Automation is more flexible with light loads、More accurate positioning。 Screw module features：
Belt pulley，It belongs to disk hub parts，Generally the relative size is relatively large，The manufacturing process is generally cast、forging-based。Generally, the larger size is designed by casting method，The material is usually cast iron（Casting performance is good），Cast steel is rarely used（The casting property of steel is poor）；Usually smaller in size，Can be designed for forging，Material is steel。The pulley is mainly used for long-distance transmission of power，For example, the power output of small diesel engines，Agricultural vehicle，tractor，CARS，Mining machinery，Machining equipment，Textile machinery，Packaging machinery，lathe，Forging bed，Some small horsepower motorcycle power transmission，Power transmission of agricultural machinery，Air compressor，retarder，Reduction gear，dynamo，Gin and so on。
Brake motor is also known as electromagnetic loss brake motor、Brake asynchronous motor，Its completely enclosed.、Self-cooling by fan、Squirrel cage，Asynchronous motor with DC electromagnet brake attached。 Brake motor divided into：Dc brake motor，Ac brake motor。The DC brake motor requires a rectifier，The voltage after rectification is99V，170Vor90－108V，The DC brake motor has to pass through the rectifier voltage，Fast brake time is on0．6About seconds。Ac brake motor because direct380Vvoltage，No need for rectification，The braking time can be in0．2In seconds。Dc brake motor has simple structure，Cheap to build，The heat is faster and easily burns the motor。The structure of AC brake motor is complex，Relatively high cost，Obvious braking effect，durable，It is an ideal driving force for automatic control。But DC brake motors，The brake part of the AC brake motor（Instant brake）Can not be connected to frequency conversion voltage，Need additional wire synchronization control！
Time delay relay schematic diagram
Repair and cleaning of radial thrust roller bearings
Do you know what the protection function of Siemens motor protector is？The following Xiaobian to tell you about it！
Seals are extremely important for double-row aligning ball bearings，If there is a problem in the sealing part, it will have a great impact on the bearing，If the shape is irregular、meat-poor、Seals with small cracks and other defects are not acceptable。
Stepper motor driver： Stepper motor driverIt is an actuator that converts electrical pulses into angular displacement。When the stepper driver receives a pulse signal，It drives the stepper motor to rotate a fixed Angle in the set direction(call“Step Angle”)，Its rotation is carried out step by step at a fixed Angle。The amount of angular displacement can be controlled by controlling the number of pulses，So as to achieve the purpose of accurate positioning；At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency，Thus to achieve the purpose of speed regulation and positioning。 sort： Stepper motors are classified by structure：Step motor is also called pulse motor，Including reactive stepping motor（VR）、Permanent magnet stepper motor（PM）、Hybrid stepping motor（HB）Etc.。
1、Main pole： The main magnetic pole is induced by an air gap magnetic field。The main magnetic pole is composed of two parts: the main magnetic pole dead center and the field winding。Give up ordinary use0.5mm～1.5mmThick sheets of silicon steel are pressed and riveted，Divided into pole body and pole shoe two parts，The part of the field winding below is called the pole body，The lower part of the widening is called the pole shoe，The pole shoe is wider than the pole body，The dispersion of magnetic field in the air gap can be adjusted，It is also convenient to fix the field winding。The field winding is made of insulated copper wire，Over the main pole dead center。All main magnetic poles are fixed on the frame with screws， 2、Commutating pole： The effect of the commutator pole is to improve the commutation，Reduce the commutation spark that can occur between the brush and the commutator when the motor is running，It is usually installed between two adjacent main magnetic poles，It is composed of commutator pole de
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