JUNESUN

09

2022

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09

Differences between electric push rod and electri∏γ φc cylinder

Author:

1. From the lead screw form: the e&✘₹lectric push rod is mostly m←α✔↑ade of ordinary trapezoidal≥σ lead screw and rolled ball screw; The electri§↔€c cylinder is mostly madeε"$ of ground ball scre§÷₹±w and planetary ball scr‌Ω≤λew

1. From the lead screw form: the electric p<φush rod is mostly made of ordinary trapezo←←idal lead screw and ♣β‍rolled ball screw; Th≥☆e electric cylinder is mostly made of ground ba♣∏£ll screw and planetary ball screw
2. From the connection form with the moto$×r: the electric push rod is mostlyβ↔$ driven by gears, turb₹≈$ine vortex rods, etc., with lo∞÷β&w efficiency; The electric δ®cylinder is usually connected t•₹♠★o the motor directly by coupling or synchrono₽∞‌us pulley, which is very efficient
3. In terms of linear speed, the ®"‌εspeed of electric push rod is generally★↔↔<100mm/s; The speed of ®"≈electric cylinder can reach 2m/s
4. In terms of accuracy: the a∞₹ ccuracy of AC electri¥¥βc push rod is 0.1-0.2mm, and the✔♣ accuracy of DC electric push rod is 1-2mm; The ↔£accuracy of electric cylinder is 0.01-02mm↓β÷
5. Slave control mode: generally, th αe electric push rod can onlyπσφ¥ control 0 point and Z large stroke pos δitions (the middle position cγ∏an also be controlled by adding servo mot" ₩>or or stepping motor, but it is troubleso ✘δ‌me); The electric cylind↓✘er can be started and stopped at any position
The reason why electric cyli¥ nder is called electric cylinde✘∞✘r or servo electric cylindeε​£™r is that its perfor♠ε₽$mance is close to that of hydraulic cylin♦∑der, for example, the thrust can reach 35 '≥ ₽tons, the speed can reach 2 m/s,δ> and the stroke is relativ¥€₽ely long. Compared with ≤λπ♣hydraulic cylinder and cylinder, electric cylin↑‍£der does not need hydraulic ≠↕∑φand air sources, but it can co→→σntrol the movement oσ≈÷≤f electric cylinder by giving↑±←¥ ordinary AC power and cont £ rolling the movement of servo motor.
The reason why the electric push rod can only±​φ be called a push rod iσ"÷s that it can only push and pul↔αl. The Z large thrust is basically difficul↓σ♥t to exceed 10 tons, the spe₽ γed is less than 100 mm/s, and the trave↕≥ "l cannot be very long.