CN106151347A - Pneumatic mechanism is used on a kind of oily cold defecator - Google Patents

Abstract

The invention discloses on a kind of oily cold defecator with pneumatic mechanism, described buffer includes cylinder body (1), described buffer also includes piston component (12) and pull bar (2), described piston component (12) is arranged on one end of pull bar (2), described piston component (12) is arranged in cylinder body (1) and the outer wall of described piston component (12) contacts with the inwall of cylinder body (1), and on the inwall of described cylinder body (1), the length direction along described cylinder body (1) is provided with air channel (11).The invention provides a kind of novel buffer structure, it has, and damping effect is notable, working stability and the feature of length in service life.

Description

Pneumatic mechanism is used on a kind of oily cold defecator

Technical field:

The present invention relates to cold defecator technical field, more specifically to a kind of oily cold filtration Pneumatic mechanism is used on device.

Background technology:

Buffer is mainly used to concussion when suppression rebounds and impact, and it primarily serves buffering and makees With, less impact with other structures in protection equipment, a large amount of buffers of the prior art is Bumper, it mainly have employed spring principle of absorbable impact during compression Play the effect of buffering, the main uses of spring buffer: blower fan, wind cabinet, air-conditioning box, The damping vibration-isolating of the equipment such as air compressor, air conditioning unit, electromotor, cooling tower, if Additional employing antivibrator sets, then can be suitably used for the impingement equipment such as punch press, pressure, forging hammer machine Isolating technique.And the shortcoming of spring buffer is: 1. owing to there is the existing picture of self-vibration, easily pass Pass low-frequency vibration.2. damping is the least, critical damping ratio typically only 0.005, therefore with set Standby frequency can produce covibration close to interval.3. in use can be due to tired due to spring Labor is susceptible to damage, and therefore its working condition is not highly stable.

Summary of the invention:

The purpose of the present invention is that on a kind of oily cold defecator of offer uses pneumatic mechanism, and it carries Having supplied a kind of novel buffer structure, it has, and damping effect is notable, working stability and use longevity The feature that life is long.

For achieving the above object, with pneumatic mechanism on the oily cold defecator of one of the present invention, institute State buffer and include that cylinder body, described buffer also include piston component and pull bar, described piston set Part is arranged on one end of pull bar, and described piston component is arranged in cylinder body and described piston component Outer wall contacts with the inwall of cylinder body, along the length side of described cylinder body on the inwall of described cylinder body To being provided with air channel.

Preferred as technique scheme, described piston component includes along with atmospheric pressure increases And the piston bush expanded, the outer wall of described piston bush contacts with the inwall of cylinder body.

Preferred as technique scheme, described piston bush is the sleeve-shaped knot of one end open Structure, described piston bush is prepared by elastomeric material.

Preferred as technique scheme, described piston component includes along with atmospheric pressure increases And the piston ring expanded, the outer wall of described piston ring contacts with the inwall of cylinder body.

Preferred as technique scheme, described piston component includes upper piston and lower piston, Described upper piston is connected with pull bar, and described piston bush and piston ring are arranged on upper piston and lower piston Between, the endoporus on described piston bush, piston ring and lower piston is interconnected.

Preferred as technique scheme, one end of described cylinder body is provided with enclosing cover, the other end It is provided with inner cap.

Preferred as technique scheme, described cylinder body is provided with the exit of inner cap one end and sets Being equipped with sealing ring, described pull bar is connected through described sealing ring with described piston component.

Preferred as technique scheme, one end of described pull bar is provided with draws cap, described in draw Cap is spherical away from one end of pull bar.

Preferred as technique scheme, described in draw cap with pull bar for threadeding, described logical The cross section of air drain is square.

Preferred as technique scheme, the outer wall of described piston bush has and can improve contact Performance sealant.

The beneficial effects of the present invention is: the invention provides a kind of novel buffer structure, it Have that damping effect is notable, the feature of working stability and length in the service life high longevity of machine tool guideway Life, rigidity and precision.

Accompanying drawing illustrates:

The present invention is described further below in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of the embodiment of the present invention

Fig. 2 is the operating diagram of the embodiment of the present invention

Fig. 3 is the operating diagram of the embodiment of the present invention.

In figure: 1, cylinder body；2, pull bar；3, sealing ring；4, cap is drawn；5, piston bush；6、 Sealant；7, enclosing cover；8, piston ring；9, lower piston；10, upper piston；11, ventilation Groove；12, piston component；13, inner cap.

Detailed description of the invention:

The following stated is only the preferred embodiment embodying the principle of the invention, the most therefore limits this The protection domain of invention

Embodiment: be illustrated in figure 1 on the present invention cold defecator of a kind of oil with pneumatic mechanism Embodiment, described buffer includes cylinder body 1, and the cross section of this cylinder body 1 can be any regular shape Shape, specific in the present embodiment, this cylinder body 1 is cylindric, and the cylinder body 1 of this cylindrical shape Can wall thickness need to meet requirement of strength definitely, more specifically this cylinder body 1 can by steel alloy or High strength hard plastics prepare, and described buffer also includes piston component 12 and pull bar 2, institute State pull bar 2 to be prepared by metal material, and the cross section of the pull bar 2 in the present embodiment is circle Shape, described piston component 12 is arranged on one end of pull bar 2, and described piston component 12 is arranged on In cylinder body 1 and the outer wall of described piston component 12 contacts with the inwall of cylinder body 1, described cylinder On the inwall of body 1, the length direction along described cylinder body 1 is provided with air channel 11, this ventilation The side of groove 11 is open state, and air channel 11 is parallel with the axis of cylinder body 1 and and cylinder body The inner chamber of 1 communicates, and the cross section of air channel 11 can be any regular shape, specific to this In embodiment, the cross section of air channel 11 is square, it addition, air channel 11 can be by cylinder body 1 Integrally cast molding, also has, and the position of the air channel 11 in the present embodiment needs to meet necessarily Ground requirement, it is the first end that pull bar 2 enters one end of cylinder body 1, and cylinder body is another away from this first end Outer one end is the second end, in described air channel 11 two ends near the first end for the 3rd end, separately One end is the 4th end, has a certain distance between described first end and the 3rd end, and this distance needs Not less than the length of piston component 12, and the second end can align with the 4th end.

It addition, in the present embodiment, piston component 12 includes along with atmospheric pressure increase swollen Swollen piston bush 5, the outer wall of described piston bush 5 contacts with the inwall of cylinder body 1, piston bush 5 is the sleeve-like configuration of one end open, and described piston bush 5 is prepared by elastomeric material, more specifically Say that this piston bush 5 can be prepared by elastic plastic material, pressure increase ground time, pressure make Firmly the inwall in piston bush 5 makes whole piston bush 5 spreading so that outside piston bush 5 Pressure between the inwall of wall and cylinder body 1 increases, thus damping force can be made to increase.

The piston ring 8 that piston component 12 includes increasing along with atmospheric pressure and expands, this piston Ring 8 is for having certain thickness ring bodies, and this piston ring 8 can be prepared by elastic plastic material, The operation principle of this piston ring 8 is as the operation principle of piston bush 5, namely is increasing at pressure Time greatly, pressure force make on the inwall of piston ring 8 whole piston ring 8 spreading from And the pressure between the outer wall of piston ring 8 and the inwall of cylinder body 1 is increased, thus can make Damping force increases, and the outer wall of this piston ring 8 contacts with the inwall of cylinder body 1, and in this reality Execute piston ring 8 and piston bush 5 in example to be formed in one and can also be fixed on by piston ring 8 On piston bush 5.

Further, the piston component 12 in the present embodiment also includes upper piston 10 and lower piston 9, Specifically, for physical components, lower piston 9 is hollow part to upper piston 10, described upper work Plug 10 is connected with pull bar 2, piston 10 and pull bar 2 can be any mounting means such as weld or Being threaded, described piston bush 5 and piston ring 8 are arranged on upper piston 10 and lower piston 9 Between, the endoporus on described piston bush 5, piston ring 8 and lower piston 9 is interconnected, work When, air enters from the mesopore of lower piston 9 and active force is in piston bush 5, piston ring On the inwall of 8, and in the present embodiment, piston bush 5, piston ring 8, upper piston 10 and The shape of lower piston 9 cooperates with the endoporus of cylinder body 1.

In the present embodiment, one end of cylinder body 1 is provided with enclosing cover 7, the other end is provided with inner cap 13, semi-enclosed interior space can be formed between cylinder body 1, enclosing cover 7 and inner cap 13 three, and And enclosing cover 7 in the present embodiment is stepped, more specifically enclosing cover 7 blocks at cylinder body 1 At open rearward end, it is external, and inner cap 13 is then arranged on the front opening of cylinder body 1 Place, this inner cap 13 is in built-in, and the front opening of cylinder body 1 is reducing shape.

In order to improve the sealing property of cylinder body 1 in the present embodiment, cylinder body 1 is provided with inner cap The exit of 13 one end is provided with sealing ring 3, and described pull bar 2 is through described sealing ring 3 and institute State piston component 12 to connect, in order to reduce the frictional force between pull bar 2 and sealing ring 3, need On contact surface between pull bar 2 and sealing ring 3, lubrication is set, specifically can be at both Contact surface on be coated be covered with butter, butter both can play lubrication, but also can eliminate The unlikely sealing affecting cylinder body 1 in gap between pull bar 2 and sealing ring 3.

In the present embodiment, pull bar 2 is provided with away from one end of cylinder body 1 and draws cap 4, draws the work of cap 4 Facilitate it to be connected with other impact part with being, and the present embodiment draws cap 4 away from drawing One end of bar 2 is spherical, draws cap 4 can have cast molding, and draws cap 4 away from pull bar 2 One end is spherical can conveniently to connect, it is easy to accomplish universal joint connects, and draws cap 4 and pull bar 2 Connected mode the most various, the more specifically cap 4 that draws in the present embodiment is adopted with pull bar 2 With thread connecting mode, dismantle primarily to convenient.

Have on the outer wall of piston bush 5 and can improve contact performance sealant 6, this sealant 6 by Soft plastic prepares, and it can be fixed on the outer surface of piston bush 5 by bonding way, at this The contact performance between piston bush 5 outer wall and cylinder 1 inwall can be improved, thus improve sealing Can, prevent the space being positioned at piston component 12 both sides from leaking gas by the way of beyond air channel 11, Damping performance can be played castering action, also have in order to prevent piston component 12 and cylinder body 1 it Between friction cause the abrasion of piston component 12 to improve second together between contact performance, this reality Execute example and the smoothness of cylinder body 1 inwall need to be reached requirement.

As in figure 2 it is shown, piston component 12 in the present embodiment along the direction of arrow from lower end to During upper end motion, it is now placed in the chamber below piston component 12 and is in vacuum state, and live Distance Shortened between plug sleeve 5 and piston ring 8, the active force lower piston in air pressure overlaps 5 With piston ring 8 spreading and be closely attached to cylinder body 1 inwall on, be now placed in piston component Above and below in the of 12 in the pressure differential maximum of chamber, piston bush 5 and piston ring 8 and cylinder body 1 Pressure between wall is maximum, and its frictional force is also maximum, the most now piston component 12 Damping force be maximum, when piston component 12 slowly moves to air channel 11 when, position The chamber below air entrance in piston component 12 upper chambers, in the process, on Pressure differential between side and lower chamber reduces, and piston bush 5 and piston ring 8 and cylinder body 1 Pressure between inwall is the least, correspondingly its piston bush 5 and piston ring 8 and cylinder body 1 inwall Between frictional force reduce, until piston component 12 moves to topmost, now piston component The pressure of 12 upper chambers is zero, and correspondingly damping force is also zero.

It is illustrated in figure 3 piston component 12 along the direction of arrow downward end motion from upper end, should Motor process is the adverse movement process shown in Fig. 2, damping force feelings suffered in this motor process Condition is the most contrary with damping force suffered in motor process shown in Fig. 2.

Specific embodiment described herein is only to present invention spirit explanation for example.This The technical staff of technical field that the present invention belongs to described specific embodiment can be done various respectively Amendment or supplementary or that employing the is similar mode of sample substitute, but without departing from the spirit of the present invention Or surmount scope defined in appended claims.

Claims (10)

1. using a pneumatic mechanism on the cold defecator of oil, described buffer includes cylinder body (1), It is characterized in that, described buffer also includes piston component (12) and pull bar (2), described work Plug assembly (12) is arranged on one end of pull bar (2), and described piston component (12) is arranged on In cylinder body (1) and the outer wall of described piston component (12) contacts with the inwall of cylinder body (1), On the inwall of described cylinder body (1), the length direction along described cylinder body (1) is provided with air channel (11)。

With pneumatic mechanism on the oily cold defecator of one the most according to claim 1, its It is characterised by, the piston that described piston component (12) includes increasing along with atmospheric pressure and expands Set (5), the outer wall of described piston bush (5) contacts with the inwall of cylinder body (1).

With pneumatic mechanism on the oily cold defecator of one the most according to claim 2, its Being characterised by, described piston bush (5) is the sleeve-like configuration of one end open, described piston bush (5) prepared by elastomeric material.

With pneumatic mechanism on the oily cold defecator of one the most according to claim 3, its It is characterised by, the piston that described piston component (12) includes increasing along with atmospheric pressure and expands Ring (8), the outer wall of described piston ring (8) contacts with the inwall of cylinder body (1).

With pneumatic mechanism on the oily cold defecator of one the most according to claim 4, its Being characterised by, described piston component (12) includes upper piston (10) and lower piston (9), institute State upper piston (10) to be connected with pull bar (2), described piston bush (5) and piston ring (8) It is arranged between upper piston (10) and lower piston (9), described piston bush (5), piston ring (8) endoporus and on lower piston (9) is interconnected.

With pneumatic mechanism on the oily cold defecator of one the most according to claim 1, its Being characterised by, one end of described cylinder body (1) is provided with enclosing cover (7), the other end is provided with interior Lid (13).

With pneumatic mechanism on the oily cold defecator of one the most according to claim 1, its Being characterised by, described cylinder body (1) is provided with the exit of inner cap (13) one end and is provided with close Seal (3), described pull bar (2) is through described sealing ring (3) and described piston component (12) Connect.

With pneumatic mechanism on the oily cold defecator of one the most according to claim 1, its Being characterised by, one end of described pull bar (2) is provided with draws cap (4), described in draw cap (4) remote It is spherical from one end of pull bar (2).

With pneumatic mechanism on the oily cold defecator of one the most according to claim 8, its Be characterised by, described in draw cap (4) with pull bar (2) for threadeding, described air channel (11) Cross section be square.

With pneumatic mechanism on the oily cold defecator of one the most according to claim 3, It is characterized in that having on the outer wall of described piston bush (5) and contact performance sealant can be improved (6)。