CN102252001A

CN102252001A - Air cylinder using hydraulic drive

Info

Publication number: CN102252001A
Application number: CN2011102411141A
Authority: CN
Inventors: 康向一
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-22
Filing date: 2011-08-22
Publication date: 2011-11-23

Abstract

The invention discloses an air cylinder using hydraulic drive. The upper part and the lower part of a cylinder body comprise the front end and the rear end of the cylinder body which have different diameters, a small piston which is arranged at the front end of the cylinder body and is provided with a piston rod, and a large piston which is arranged at the rear end of the cylinder body; a large piston inner O-shaped ring is arranged between the large piston and the piston rod; hydraulic oil is filled between the small piston and the large piston to form a closed oil cabin; the front end of the small piton is provided with damping rubber mats; the front end of the cylinder body is provided with an air vent which is connected with an air source; the rear end of the cylinder body is provided with an air vent which is connected with a switch; and the rear end of the cylinder body is provided with large damping rubber mats and a cylinder rear end O-shaped ring. During returning of the piston, the compressed gas at the front end of the cylinder body returns to an air source, so that air displacement and the using cost are reduced.

Description

A kind ofly utilize hydraulicdriven cylinder

Technical field

The present invention relates to a kind of cylinder of the saved air displacement that air pressure, hydraulic pressure are combined

Background technique

Cylinder piston to-and-fro motion in use commonly used at present once needs cylinder rear and front end vent to enter respectively and to external world's pressurized gas of discharging piston continuously moved reciprocatingly, the pressurized gas that causes the every acting of cylinder once to be discharged is equivalent to the twice of cylinder internal volume, thereby cause the waste of pressurized gas, cause the increase of user cost.

Summary of the invention

Technical problem to be solved by this invention provides a kind of energy-saving and emission-reduction, reduces the cylinder of user cost.

The present invention adopts following technological scheme:

Cylinder block of the present invention two-part up and down is respectively diameter different cylinder body front end and rear end of the cylinder block, be arranged at the small piston that has piston rod in the cylinder body front end, be arranged at the big piston in the rear end of the cylinder block, O type circle is arranged between described big piston and the piston rod, fill hydraulic oil between described small piston and the big piston and form an airtight bunker, it is characterized in that small piston and big piston are to be connected and to promote by hydraulic oil to do work, described small piston front end is provided with the damping rubber cushion, described cylinder body front end is provided with the vent that is connected with source of the gas, described rear end of the cylinder block is provided with the vent that is connected with switch, described rear end of the cylinder block is provided with big damping rubber cushion and O type circle, airtight bunker capacity must be greater than the capacity of rear end of the cylinder block in the described cylinder, it is characterized in that making small piston only to move reciprocatingly at the cylinder body front end, described rear end of the cylinder block air inflow must not is characterized in that can not causing the excess waste of pressurized gas greater than 2 times of cylinder body front end air inflow.

Good effect of the present invention is as follows:

The present invention directly is communicated with the cylinder block front end with source of the gas, rear end of the cylinder block is communicated with switch, in the small piston acting finishes the return process, the cylinder body front end no longer needs to connect switch to extraneous exhaust, but promote big piston by the air inlet of rear end of the cylinder block vent, big piston promotes small piston by hydraulic oil gets back in the source of the gas pressurized gas in the cylinder body front end, thereby the every acting of cylinder has once only been lowered air displacement to external world's pressurized gas of discharging and reduced user cost.

Description of drawings

Accompanying drawing 1 is structural representation of the present invention.

Schematic representation when accompanying drawing 2 does work for the present invention.

Accompanying drawing 3 is plan view of the present invention.

Accompanying drawing 4 is plan view of the present invention.

In the accompanying drawings: O type circle, the outer O type circle of 10 big pistons, 11 small piston O type circles, 12 cylinder body front end vents, 13 rear end of the cylinder block vents, 14 switches, 15 airtight bunkers in 1 cylinder body front end, 2 rear end of the cylinder block, 3 small pistons, 4 big pistons, 5 piston rods, 6 damping rubber cushions, 7 big damping rubber cushions, 8 rear end of the cylinder block O type circles, 9 big pistons

Embodiment

As shown in Figure 1, when cylinder block front end vent (12) is communicated with source of the gas, rear end of the cylinder block vent (13) coupling cock (14), switch (14) and is communicated with source of the gas cylinder is in the normal state, because big piston (4) is bigger than small piston (3) lifting surface area, thereby makes source of the gas gas enter cylinder by switch (14) by rear end of the cylinder block vent (13).

As shown in Figure 2, when opening switch (14), to extraneous releasing compressed gas, source of the gas gas enters cylinder by cylinder body front end vent (12) to rear end of the cylinder block vent (13) simultaneously by switch (14), makes externally acting of small piston (3).

Rear end of the cylinder block vent (13) is communicated with source of the gas gas and enters rear end of the cylinder block (2) with source of the gas when off switch (14), because stressed bigger than small piston (3) with big piston under the pressure (4), thereby big piston (4) and small piston (3) being moved upward simultaneously promote the interior source of the gas gas of cylinder body front end (2) gets back in the source of the gas.

Claims

1. one kind is utilized hydraulicdriven cylinder, two-part were respectively different cylinder body front end (1) of diameter and rear end of the cylinder block (2) about it comprised cylinder body, be arranged at the small piston that has piston rod (5) (3) in the cylinder body front end (1), be arranged at the big piston (4) in the rear end of the cylinder block (2), O type circle (9) in the big piston is arranged between described big piston (4) and the piston rod (5), fill hydraulic oil between described small piston (3) and the big piston (4) and form an airtight bunker (15), described small piston (3) front end is provided with damping rubber cushion (6), described cylinder body front end (1) is provided with the vent (12) that is connected with source of the gas, described rear end of the cylinder block (2) is provided with the vent (13) that is connected with switch (14), described rear end of the cylinder block (2) is provided with big damping rubber cushion (7) and rear end of the cylinder block O type circle (8), it is characterized in that being respectively equipped with in cylinder body front end (1) that diameter is different and the rear end of the cylinder block (2) small piston (3) that has piston rod (5) and, fill hydraulic oil and form an airtight bunker (15) between described small piston (3) and the big piston (4) not with the big piston (4) of piston rod.