Multistage parallel heavy-load electric cylinder

An electric cylinder, a first-class technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of large-scale vertical launch, large impact of level change, etc., to improve transmission efficiency and transmission speed, large load capacity, increase Effect of Bending and Torsional Resistance

Active Publication Date: 2021-11-23
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the working process of multi-stage hydraulic cylinders, there are problems such as large impact of stage change and "running, popping, dripping and leaking", which have always plagued large vertical launchers.

Method used

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  • Multistage parallel heavy-load electric cylinder
  • Multistage parallel heavy-load electric cylinder
  • Multistage parallel heavy-load electric cylinder

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Experimental program
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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0022] The invention provides a multi-stage parallel heavy-duty electric cylinder.

[0023] Such as figure 1 , figure 2 and image 3As shown, the electric cylinder includes base cylinder 1, thrust cylindrical roller bearing 2, primary input gear 3, reduction gear 4, motor output gear 5, servo motor 6, primary planetary roller screw shaft 7, primary Nut 8, roller A9, primary cylinder 10, transmission cylinder A11, protective cover A12, secondary input gear 13, secondary planetary roller screw shaft 14, secondary cylinder 15, secondary nut 16, roller B17, drive cylinder B18, tertiary input gear 19, protective cover B20, tertiary planetary roller screw shaft 21, tertiary nut 22, roller C23, spline A24, tertiary cylinder 25, inner ring gear 26, Roller c...

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PUM

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Abstract

The invention provides a multi-stage parallel heavy-load electric cylinder, and belongs to the technical field of electric cylinders. The electric cylinder comprises planetary roller lead screw shafts, nuts, rollers, cylinder barrels, input gears, a servo motor, a reduction gear, splines and transmission barrels. The servo motor is fixedly connected with a base cylinder barrel, the servo motor is connected with the reduction gear, one end of the first-stage planetary roller screw shaft is fixedly connected with the first-stage input gear, the other end of the first-stage planetary roller screw shaft is connected with the spline A, the first-stage nut and the rollers surround the first-stage planetary roller screw shaft to form a whole, and one end of the second-stage planetary roller screw shaft is fixedly connected with the second-stage input gear; and the other end of the second-stage planetary roller lead screw shaft is connected with the spline B, the second-stage nut and the rollers surround the second-stage planetary roller lead screw shaft to form a whole, and the third-stage nut and the rollers surround the third-stage planetary roller lead screw shaft to form a whole. According to the electric cylinder, the space volume is reduced, the bearing capacity is enhanced, the bending resistance and the torsion resistance are high, and the transmission speed and the transmission efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of electric cylinders, in particular to a multi-stage parallel heavy-duty electric cylinder. Background technique [0002] The electric cylinder is a product that integrates the servo motor and the lead screw. The rotary motion of the motor is converted into the linear motion of the push rod through the mechanical motion of the lead screw and the lead screw pair, and the output shaft is realized by the positive and negative rotation of the motor. Reciprocating motion can realize remote control and centralized control; it has the performance characteristics of high transmission efficiency, high positioning accuracy, high reliability and safety, fast response, precise control and high synchronization. [0003] The overall structure of the existing servo electric cylinder is relatively complex, the overall volume is large, it needs to occupy a lot of space in the applied mechanical equipment, it is inconvenient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/12H02K7/06
CPCF16H37/124H02K7/06
Inventor 申焱华刘相新张豪杰谷捷黎兰
Owner UNIV OF SCI & TECH BEIJING
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