CN102619920A

CN102619920A - Unpowered hydraulic one-way buffer device

Info

Publication number: CN102619920A
Application number: CN2012100938728A
Authority: CN
Inventors: 柴远宗
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-27
Filing date: 2012-03-27
Publication date: 2012-08-01

Abstract

The invention relates to an unpowered hydraulic one-way buffer device, which comprises a seat, an elastic pin, a rod, a copper screw nut, a sealing ring, a screw sleeve, a steel ball, a baffle ring and a reset spring, wherein the seat is connected with the rod through the elastic rod, the rod is connected with the copper screw nut, the copper screw nut is connected with the screw sleeve, the bottom of the screw sleeve is provided with the reset spring, the upper end of the reset spring is in contact with the bottom of the rod, the steel ball is positioned in a steel ball die cavity arranged at the lower part of the rod, the baffle ring connected with the steel ball die cavity is arranged under the steel ball, the upper end of the steel ball die cavity is connected with a crossed large-aperture oil return hole, and screw threads are arranged outside the screw sleeve. The unpowered hydraulic one-way buffer device has the advantages that the structure is compact, the whole body is soft, the occupied space is small, the package and the transportation are convenient, and in addition, the assembly process is simpler, more convenient and more efficient.

Description

Unpowered hydraulic pressure one-way damper

Technical field

The present invention relates to a kind of mechanically operated damping device, be specially a kind of unpowered hydraulic pressure one-way damper.

Background technique

The existing needs in the buffer device, the equipment buffering leans on rubber-like metal spring or rubber-like rubber-like object to cushion, and the buffering back has a power that pushes away in the other direction to equipment, and the equipment that makes can not reset fully, therefore exists following defective:

1, impacts rubber-like metal spring buffering objects for a long time fast, make spring buffer object intensity be easy to generate tired consequently cushion and reduce or lose buffer capacity, cause mechanical motion equipment can't obtain buffering so that device damage at last;

2, impact for a long time the cushion of rubber-like rubber-like fast, make rubber-like rubber buffering objects produce the sense of organization and damage, so that cushion loses buffer capacity, cause mechanical motion equipment can't obtain buffering so that device damage at last;

3, in the existing equipment that needs to cushion; The equipment buffering leans on rubber-like metal spring or rubber-like rubber-like object to cushion; The buffering back has the power that pushes away in the other direction to equipment, make equipment moving parts stroke receive influence, so that the moving element stop position is inaccurate.

Summary of the invention

It is a kind of rational in infrastructure that the technical problem that the present invention solved is to provide, and space hold is little, and packing and cost of transportation are low; Easy for installation, unidirectional buffering, the machinery movement travel does not receive the reverse influence that promotes in buffering objects buffering back; Mechanical part rapidly moves to stop motion fast behind the specified position; Mechanical part does not influence the machinery parts stop-position after installing and using the present invention, and operational reliability is high, and the unpowered hydraulic pressure one-way damper of long service life.

The technical problem that the present invention solved adopts following technological scheme to realize:

Unpowered hydraulic pressure one-way damper comprises seat, resilient key, bar, copper nut, seal ring, swivel nut, steel ball, back-up ring and Returnning spring, and said seat is through the resilient key connecting rod; Said bar runs through copper nut, and said copper nut connects swivel nut, and Returnning spring is established in said swivel nut bottom; Contact lever bottom, said Returnning spring upper end; Said steel ball is positioned at the steel ball die cavity of bar bottom, and the back-up ring that connects the steel ball die cavity is established in the steel ball below, and said steel ball die cavity upper end connects cross large aperture spill port.

Screw thread is established in said swivel nut outside.

Said swivel nut inside is divided into die cavity A and die cavity B, and the internal diameter of die cavity B is than the big 1～3mm of internal diameter of die cavity A, and the internal diameter of die cavity A is filled control hydraulic oil than the big 0.04～0.075mm of external diameter of bar bottom in the die cavity A.

The present invention compared with prior art has following beneficial effect:

1, the mechanical part folk prescription of folk prescription after the design of hydraulic cushion working principle makes installation the present invention do not rebound during buffering to obtaining buffering, and cushioning effect is better.

2, adopt hydraulic oil to design as buffer medium, cushioning effect is better, does not have tired.

3, the design of cross large aperture spill port resets rapidly after making buffering.

4, the reposition force of Returnning spring is little, and mechanical part is not produced deboost.

5, be designed with the trapped fuel groove in the middle of the double density seal design, two seal rings, sealing, lubrication effect are better.

6, moving element adopts resilient key to fix, and can better solve infringement mutually between the moving element, and more firm.

7, screw thread is established in the swivel nut outside, can adopt the two round nuts of Full Thread FT to install, and makes assembling process easier, efficient, can improve the non-maintaining property of mechanical motion equipment effectively.

8, compact structure of the present invention, whole antirust processing, space hold are little; Not only packing and convenient transportation but also assembly process are easier, efficient.

Description of drawings

Fig. 1 is the complete section structural representation of the unpowered hydraulic pressure one-way damper of the present invention.

Structure scheme of installation when Fig. 2 specifically uses for the present invention.

Fig. 3～8 are that the present invention is from beginning to bear pressure to the schematic representation of work efficiency successively that resets.

Embodiment

Be easy to understand and understand in order to make technological means of the present invention, creation characteristic, workflow, method for using reach purpose and effect,, further set forth the present invention below in conjunction with concrete diagram.

As shown in Figure 1, the unidirectional trimmer valve of unpowered hydraulic pressure comprises seat 1, resilient key 2, bar 3, copper nut 4, seal ring 5 and 6, swivel nut 7, steel ball 8, back-up ring 9 and Returnning spring 10; Said seat 1 is through resilient key 2 connecting rods 3; Said bar 3 runs through copper nut 4, and said copper nut 4 connects swivel nut 7, and Returnning spring 10 is established in said swivel nut 7 bottoms; Said Returnning spring 10 upper end contact levers 3 bottoms; Said steel ball 8 is positioned at the steel ball die cavity 22 of bar 3 bottoms, and the back-up ring 9 that connects steel ball die cavity 22 is established in steel ball 8 belows, and said steel ball die cavity 22 upper ends connect cross large aperture spill port 22.

Screw thread is established in said swivel nut 7 outsides.

Said swivel nut 7 inside are divided into die cavity A and die cavity B, and the internal diameter of die cavity B is than the big 1～3mm of internal diameter of die cavity A, and the internal diameter of die cavity A is filled control hydraulic oil than the big 0.04～0.075mm of external diameter of bar 3 bottoms in the die cavity A.

As shown in Figure 2; The seat 1 of the unidirectional trimmer valve 200 of the unpowered hydraulic pressure of the present invention contacts with mechanical moving element 100; Run through to be installed on the machinery fixed plate 300 through the outside screw threads of swivel nut 7, can carry out up-down adjustment according to the actual motion stroke of mechanical moving element 100 during installation; Fix with the two round nuts 400 of Full Thread FT again after regulating the seat.

Working principle of the present invention is: shown in Fig. 3～8; When mechanical moving element 100 exerts pressure to seat 1 bar 3 is moved downward; According to hydraulic oil circulation principle, hydraulic oil promotes steel ball 8 and moves upward, and makes steel ball block the lower end mouth of cross large aperture spill port 22; Mechanical moving element 100 continues to give seat 1 to exert pressure, and hydraulic oil can only flow into die cavity B through the slit between die cavity A and the bar 3; Mechanical moving element 100 continues to give seat 1 to exert pressure, because the slit between die cavity A and the bar 3 is very little, hydraulic oil can't flow into die cavity B fast, thereby has slowed down the movement velocity of bar 3, has obtained the purpose of buffering; When die cavity A was varied down to the setting size, unnecessary hydraulic oil all flow into die cavity B, and mechanical moving element 100 stops, and has promptly accomplished cushion stroke; When mechanical moving element 100 reversing motions; Returnning spring 10 is catch bar 3 move upward (Returnning spring 10 elastic force are little, only are used for the reset response of bar 3, can not produce thrusts to mechanical moving element 100) thereupon; Steel ball falls simultaneously; Open the lower end mouth of cross large aperture spill port 22, spill port 22 returns die cavity A to the hydraulic oil among the die cavity B through the cross large aperture, accomplishes homing action.

More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. unpowered hydraulic pressure one-way damper, comprise seat, resilient key, bar, copper nut, seal ring and, swivel nut, steel ball, back-up ring and Returnning spring, it is characterized in that; Said seat is through the resilient key connecting rod; Said bar runs through copper nut, and said copper nut connects swivel nut, and Returnning spring is established in said swivel nut bottom; Contact lever bottom, said Returnning spring upper end; Said steel ball is positioned at the steel ball die cavity of bar bottom, and the back-up ring that connects the steel ball die cavity is established in the steel ball below, and said steel ball die cavity upper end connects cross large aperture spill port.

2. unpowered hydraulic pressure one-way damper according to claim 1 is characterized in that screw thread is established in said swivel nut outside.

3. unpowered hydraulic pressure one-way damper according to claim 1 and 2; It is characterized in that; Said swivel nut inside is divided into die cavity A and die cavity B; The internal diameter of die cavity B is than the big 1～3mm of internal diameter of die cavity A, and the internal diameter of die cavity A is filled control hydraulic oil than the big 0.04～0.075mm of external diameter of bar bottom in the die cavity A.