CN207634435U

CN207634435U - Automatic reciprocating cylinder

Info

Publication number: CN207634435U
Application number: CN201721600659.6U
Authority: CN
Inventors: 倪德忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-22
Filing date: 2017-11-22
Publication date: 2018-07-20
Anticipated expiration: 2027-11-22

Abstract

The utility model discloses a kind of automatic reciprocating cylinders, including cylinder barrel, piston, piston rod, it is characterized in that：Piston and piston rod are equipped in the cylinder barrel, cylinder barrel both ends are respectively equipped with blind cover, through-hole lid and shuttle valve A, shuttle valve B, top cover is equipped in blind cover and through-hole lid, spring is equipped in top cover, cylinder barrel is outer and parallel with it equipped with oil circuit connecting leg, oil inlet pipe and flowline, and oil inlet pipe is connected to through shuttle valve A and oil inlet connecting leg with shuttle valve B oil duct；Flowline is connected to through shuttle valve A and oil return connecting leg with shuttle valve B oil duct；Two alternation oil circuit connecting legs are respectively communicated with the oil duct of shuttle valve A and shuttle valve B.The utility model has the beneficial effects that without " electricity ", by itself medium control, piston is not turned one's head less than stop, oil cylinder is fully used；Can high temperature resistant, high pressure, high humidity, the adverse circumstances such as strong jamming, function admirable long lifespan can use in the various occasions of not overcritical length, for example, applied to land, deep-sea oil field deep well under pumping unit.

Description

Automatic reciprocating cylinder

Technical field

The utility model is related to technical field of hydraulic oil cylinder, specifically related with automatic reciprocating cylinder.

Background technology

General cylinder, oil cylinder are driven by pressure medium, realize the movement of piston, their directional control valve, all It is provided in external pipeline, though there is a kind of automatic cylinder, it is to adhere to a set of battery control valve outside cylinder body, its original Reason be by in-cylinder pressure feel and piston turn one's head, therefore be only used for power needed for driven operating mechanism less or will not dash forward The common occasion increased, and general oil cylinder is all automatically controlled work, is just turned one's head less than stop, oil cylinder does not make full use of.

Invention content

For overcome the deficiencies in the prior art, the utility model provides a kind of automatic reciprocating cylinder, its each structural member central shaft Line overlaps cylinder body axial line, is manipulated without " electricity ", and piston is not turned one's head less than stop.

In order to achieve the above object, the technical solution of the utility model is a kind of automatic reciprocating cylinder, including cylinder barrel, piston, Piston rod, it is characterized in that：Be equipped with piston and piston rod in the cylinder barrel, cylinder barrel both ends be respectively equipped with blind cover, through-hole lid and Shuttle valve A, shuttle valve B are equipped with top cover in blind cover and through-hole lid, are equipped with spring in top cover, and cylinder barrel is outer and parallel with it is equipped with Oil circuit connecting leg, oil inlet pipe and flowline, oil inlet pipe are connected to through shuttle valve A and oil inlet connecting leg with shuttle valve B oil duct；Flowline is through shuttle Valve A and oil return connecting leg are connected to shuttle valve B oil duct；Two alternation oil circuit connecting legs are respectively communicated with the oil of shuttle valve A and shuttle valve B Road.

The utility model has the beneficial effects that not turned one's head less than stop without " electricity ", by the control of itself medium, piston, oil cylinder It is fully used；The adverse circumstances such as energy high temperature resistant, high pressure, high humidity, strong jamming, function admirable long lifespan can be in not overcritical length Degree various occasions use, such as applied to land, deep-sea oil field deep well under pumping unit.

Description of the drawings

Fig. 1 is the utility model front view.

Fig. 2 is the utility model vertical view.

Fig. 3 is the A-A direction views of Fig. 1.

Fig. 4 Fig. 5 is piston row operating diagram from bottom to top.

Fig. 6 Fig. 7 is piston row operating diagram from the top down.

In figure, 1 shuttle valve A, 2 shuttle valve Bs, 3 oil inlet connecting legs, 4 alternation oil circuit connecting legs, 5 oil return connecting legs, 6 top covers, 7 blind bottoms Shuttle valve, 8 through-hole shuttle valves, 9 blind covers, 10 through-hole lids, 11 pull rod screws, 12 cylinder barrels, 13 pistons, 14 piston rods, 15 center bolts, 16 Spring, 17 port lid inner seal liners, 18 oil inlet pipes, 19 flowlines, 20A oil pockets, 21B oil pockets.

Specific implementation mode

The utility model is further illustrated below in conjunction with attached drawing.

As shown in Figures 1 to 7, the utility model discloses a kind of automatic reciprocating cylinders, including cylinder barrel 12, piston 13, piston Bar 14, is equipped with piston and piston rod in the cylinder barrel, cylinder barrel both ends be respectively equipped with blind cover 9, through-hole lid 10 and shuttle valve body A1, Shuttle valve body B2 is equipped with top cover 6 in blind cover and through-hole lid, and spring 16 is equipped in top cover, and cylinder barrel is outer and parallel with it equipped with oil circuit Connecting leg (including oil inlet connecting leg 3, alternation oil circuit connecting leg 4, oil return connecting leg 5), oil inlet pipe 18 and flowline 19, oil inlet pipe 18 is through shuttle valve Body A1 and oil inlet connecting leg 3 are connected to shuttle valve body B2 oil ducts, and flowline 19 is through shuttle valve body A1 and oil return connecting leg 5 and shuttle valve body B2 oil ducts Connection, two alternation oil circuit connecting legs 4 are respectively communicated with the oil duct of shuttle valve body A1 and shuttle valve body B2.

This automatic reciprocating cylinder working principle：Since the through-hole shuttle valve in the blind bottom shuttle valve and shuttle valve B in shuttle valve A all exists Respective lower dead center, the pressure oil in oil inlet pipe enter piston cavity of resorption, and piston upper chamber is connected to oil outlet pipe, piston from it is lower to Uplink (as shown in Figure 4, Figure 5)；For piston stroking upward to top, top cover makes spring-compressed, then makes wherein blind bottom shuttle valve uplink, successively exists Under the action of piston, spring, which opens oil outlet, simultaneously closes off fuel feed hole, make alternation oil circuit connecting leg 4 (such as Fig. 5, The mutual phase change of oil pressure in Fig. 7), and the through-hole shuttle valve in shuttle valve B is pressed onto top dead centre, so that piston cavity of resorption is connected with oil outlet pipe It is logical, separate with oil inlet pipe, piston upper chamber downlink by pressure chamber decompression；Piston is gone (as shown in Figure 6, Figure 7) from the top down；It is living Plug comes downwards to lower part, and top cover makes spring-compressed, then makes wherein through-hole shuttle valve downlink, and successively under the action of piston, spring, this is logical Hole shuttle valve closes oil outlet, opens simultaneously fuel feed hole, makes the mutual phase change of alternation oil circuit connecting leg (such as Fig. 5, Fig. 7) interior oil pressure, and Blind bottom shuttle valve in shuttle valve A is pressed onto lower dead center, piston upper chamber is made to be connected to normal oil outlet pipe, is separated with oil inlet pipe, it is living Fill in cavity of resorption compression epicoele decompression and uplink；Piston is gone (as shown in Figure 4, Figure 5) from bottom to top again；Piston stroking upward is to top, top cover Make spring-compressed, then makes wherein blind bottom shuttle valve uplink, successively under the action of piston, spring, which closes oil outlet, Fuel feed hole is opened simultaneously, makes the mutual phase change of alternation oil circuit connecting leg (such as Fig. 5, Fig. 7) interior oil pressure, and by the through-hole in shuttle valve B Shuttle valve is pressed onto top dead centre, and piston cavity of resorption is made to be connected to oil outlet pipe, with oil inlet pipe separate, piston upper chamber by pressure chamber decompression and Downlink；It so realizes automatic reciprocating.As long as oil pressure is more than oil pressure in flowline in oil inlet pipe, automatic reciprocating, never stop.

The automatic reciprocating cylinder of the utility model, if being used in common occasion, using common oil cylinder material manufacture；If special Environment uses, and the material manufacture for adapting to environment can be used.

Claims

1. automatic reciprocating cylinder, including cylinder barrel, piston, piston rod, it is characterized in that：Piston and piston rod are equipped in the cylinder barrel, Cylinder barrel both ends are respectively equipped with blind cover, through-hole lid and shuttle valve A, shuttle valve B, and top cover, top cover are equipped in blind cover and through-hole lid Interior to be equipped with spring, cylinder barrel is outer and parallel with it equipped with oil circuit connecting leg, oil inlet pipe and flowline, and oil inlet pipe is through shuttle valve A and oil inlet Connecting leg is connected to shuttle valve B oil duct；Flowline is connected to through shuttle valve A and oil return connecting leg with shuttle valve B oil duct；Two alternation oil circuits Connecting leg is respectively communicated with the oil duct of shuttle valve A and shuttle valve B.