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Novel digital servo hydraulic cylinder

A digital servo and hydraulic cylinder technology, applied in the direction of fluid pressure actuating devices, etc., can solve the problems of complex structure of CNC stepping cylinders, high precision requirements of servo valves, and high cost of ball screws, and achieve simplified structure and good speed stability. , the effect of improving the anti-pollution ability

Inactive Publication Date: 2018-05-15
沈佩军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of CNC stepping cylinder has complex structure, high cost of ball screw, high precision requirement of servo valve, discrete stepping, slow response speed, low precision, poor pollution resistance, expensive price, and cannot be widely used in civil industry, etc.

Method used

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  • Novel digital servo hydraulic cylinder

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Embodiment Construction

[0010] Such as figure 1 As shown, a new type of digital servo hydraulic cylinder includes a cylinder barrel 1 and an upper cover 2, the upper end of the cylinder barrel 1 is provided with an upper cover 2, the cylinder barrel 1 is placed on the left side of the piston rod 3, and the left side of the piston rod 3 is set There is a bow-shaped return throttle 4, and a triangular spiral oil passage 5 is provided on the inner wall of the oil cylinder at the lower end of the bow-shaped return throttle 4, and a return throttle 6 is arranged at the center of the lower part of the triangle spiral oil passage 5, and the return throttle 6 is arranged on the plunger 7. The lower end of the plug 7 is provided with a chassis 8 .

[0011] Two axisymmetric small holes are offered on the described dialing piston rod 3 .

[0012] The center on the said dial piston rod 3 is provided with an oil return hole.

[0013] It works as follows:

[0014] The high-pressure oil Ps passes through the adj...

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Abstract

A novel digital servo hydraulic cylinder comprises a cylinder barrel and an upper cover. The upper cover is arranged at the upper end of the cylinder barrel, the cylinder barrel is placed on the leftside of a piston rod, the left side of the piston rod is provided with an arch-shaped oil return valve, a triangular spiral oil passing groove is formed in the oil cylinder inner wall at the lower endof the arch-shaped oil return valve, an oil return valve is arranged in the center position of the lower portion of the triangular spiral oil passing groove and disposed on a plunger, and a base plate is arranged at the lower end of the plunger. The novel digital servo hydraulic cylinder has the advantages of good structural machinability, small rotation angle, continuous control, quick response,good speed stability, high precision, great simplification of structure, and improvement on anti-pollution capacity of oil, and thus the structure of the novel digital servo hydraulic cylinder has advancement, reasonability and practicability, and development potential is great.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a novel digital servo hydraulic cylinder. Background technique [0002] Digital servo stepping hydraulic cylinder (referred to as digital cylinder) is a typical electro-hydraulic integrated control component. The traditional digital cylinder is composed of a stepping motor, a hydraulic slide valve, a servo hydraulic cylinder and a mechanical feedback mechanism. The stepping motor passes through The elastic coupling drives the spool of the servo valve to rotate, and the thread at the end of the spool rotates in the feedback nut, causing the spool to move axially, the valve port opens, and the pressure oil passes through the servo valve to the hydraulic cylinder to move the piston, and the piston moves The internal ball screw is converted into the rotary motion of the feedback nut, so that the spool returns to its original position. A certain number of pulses correspo...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/149F15B15/202
Inventor 沈佩军
Owner 沈佩军
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