CN207814085U - A kind of single-acting cylinder - Google Patents
A kind of single-acting cylinder Download PDFInfo
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- CN207814085U CN207814085U CN201820042206.4U CN201820042206U CN207814085U CN 207814085 U CN207814085 U CN 207814085U CN 201820042206 U CN201820042206 U CN 201820042206U CN 207814085 U CN207814085 U CN 207814085U
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- piston
- cylinder cap
- cylinder
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- reset
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Abstract
The application discloses a kind of single-acting cylinder, including cylinder barrel and piston rod, further includes the first cylinder cap and the second cylinder cap for being installed on the cylinder barrel both ends, further comprises being set to the third cylinder cap between first cylinder cap and second cylinder cap and being fixed in the cylinder barrel；It is fixed on the piston rod and set on the first piston between first cylinder cap and the third cylinder cap；The first reset guide device between the first piston and the third cylinder cap；It is fixed on the piston rod and set on the second piston between second cylinder cap and the third cylinder cap；The second reset guide device between the second piston and the third cylinder cap.Using the single-acting cylinder, the cylinder barrel is divided into two parts by the third cylinder cap, make the first piston and the second piston while the piston rod being driven to stretch out, the first reset guide device and the second reset guide device drive the piston rod to reset simultaneously.Therefore, reaction is very fast, action is rapider.
Description
Technical field
The utility model is related to Pneumatic Transmission field, more particularly to a kind of single-acting cylinder.
Background technology
Important driving part of the single-acting cylinder as pneumatic gearing system, mainly by piston, cylinder barrel, front and rear cover, work
Stopper rod, spring, seals and other component composition.Under normal conditions, single-acting cylinder has many advantages, such as that simple in structure, air consumption is few,
Extensively using short stroke, the occasion that power output is small, movement velocity is not high.
Usually, cylinder barrel is divided into two sections of cavitys by the piston of single-acting cylinder, one section of air inlet side for being provided with air admission hole, separately
One section is the exhaust side being connected with air.When air admission hole is passed through a certain amount of gas, air inlet side is constantly filled with gas, pressure
Power constantly increases, until more than between piston and cylinder barrel when maximum static friction force, piston driving cylinder movement, piston rod is to overhanging
Go out；Correspondingly, when air admission hole stops ventilating, air inlet lateral pressure slowly reduces, until less than the spring mounted on exhaust side
Elastic force, spring gradually reset, and jack up piston reset, and piston rod also resets therewith.
Typically, however, one resetting spring is only installed in the exhaust side of cylinder barrel, the elastic force of spring is limited, and stroke is opposite
It is limited, it resets slower, leads to that the reaction of existing single-acting cylinder is relatively slow, action is slower.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of single-acting cylinder, reaction is very fast, action is more fast
Speed.
Its concrete scheme is as follows：
Single-acting cylinder provided by the utility model, including cylinder barrel and piston rod further include being installed on the cylinder barrel two
First cylinder cap and the second cylinder cap at end, further comprise：
Between first cylinder cap and second cylinder cap and the third cylinder cap that is fixed in the cylinder barrel；
It is fixed on the piston rod and set on the first piston between first cylinder cap and the third cylinder cap；
The first reset between the first piston and the third cylinder cap, for assisting the piston rod to reset is led
To device；
It is fixed on the piston rod and set on the second piston between second cylinder cap and the third cylinder cap；
The second reset between the second piston and the third cylinder cap, for assisting the piston rod to reset is led
To device.
Preferably, the first reset guide device includes that several groups are evenly distributed along the periphery in the first piston and institute
State the first reset guide component between third cylinder cap.
Preferably, the first reset guide component includes：
It is installed between the first piston and the third cylinder cap, first for driving the piston rod to reset resets
Spring；
In the (the first back-moving spring and it is fixed on the third cylinder cap, for guiding the (the first back-moving spring
The first mobile guide rod；
In the (the first back-moving spring and it is fixed on the first piston, for guiding first guide rod to move
The first dynamic guide sleeve.
Preferably, the bottom of first guide rod is equipped with and is fixed on the third cylinder cap, is used to support described first
First guide type shoe of guide rod.
Preferably, the second reset guide device includes that several groups are evenly distributed along the periphery in the second piston and institute
State the second reset guide component between third cylinder cap.
Preferably, the second reset guide component includes：
It is installed between the second piston and the third cylinder cap, second for driving the piston rod to reset resets
Spring；
In the second back-moving spring and it is fixed on the third cylinder cap, for guiding the second back-moving spring
The second mobile guide rod；
In the second back-moving spring and it is fixed in the second piston, for guiding second guide rod to move
The second dynamic guide sleeve.
Preferably, the bottom of second guide rod is equipped with and is fixed on second cylinder cap, is used to support described second
Second guide type shoe of guide rod.
Preferably, the third cylinder cap is located at the centre of the cylinder barrel.
Preferably, the bearing for being used to support the piston rod is equipped between the piston rod and first cylinder cap.
Preferably, it is equipped between the contact surface that the piston rod is in contact with the first piston and the second piston respectively
Sealing device.
With respect to the background art, single-acting cylinder provided herein, including it is set to first cylinder cap and described
Between two cylinder caps and the third cylinder cap that is fixed in the cylinder barrel；Be fixed on the piston rod and set on first cylinder cap and
First piston between the third cylinder cap；Between the first piston and the third cylinder cap, for assisting the work
The first reset guide device that stopper rod resets；It is fixed on the piston rod and set on second cylinder cap and the third cylinder cap
Between second piston；The between the second piston and the third cylinder cap, for assisting that the piston rod resets
Two reset guide devices；
Due to being equipped with the third cylinder cap in the cylinder barrel, naturally, the third cylinder cap coordinates first cylinder cap and institute
It states the second cylinder cap and the cylinder barrel is divided into two parts confined space.Again due to being respectively provided with described first in two parts confined space
Piston and the second piston, make two parts confined space be divided into air inlet side and exhaust side.
When being filled with inflator into cylinder barrel, the air inlet side of two parts confined space is filled with gas simultaneously therewith.With described
The pressure of the increase of gas volume in cylinder barrel, the air inlet side of two parts confined space increases therewith, when pressure reaches certain value
When, the first piston and the second piston drive the piston rod protruding simultaneously；Compared with former, the piston rod
Time shortening is stretched out, reaction is very fast.
Again since two parts confined space is respectively provided with the first reset guide device and the second reset guide device,
Therefore when the air inlet side of two parts confined space stop ventilate when, the pressure of two air inlet sides reduces simultaneously, when reduction to a certain extent
When, the first reset guide device and the second reset guide device drive the piston rod to automatically reset simultaneously, shorten
The automatically reseting the time of the piston, reaction are very fast.
Therefore, the reaction of single-acting cylinder provided herein is very fast, action is rapider.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
A kind of cross-section structure of the specific implementation mode for the single-acting cylinder that Fig. 1 is provided by the utility model embodiment shows
It is intended to；
A kind of structural representation of the specific implementation mode for the single-acting cylinder that Fig. 2 is provided by the utility model embodiment
Figure.
Reference numeral is as follows：
Cylinder barrel 1, piston rod 2, the first cylinder cap 3, the second cylinder cap 4, third cylinder cap 5, first piston 6, the first reset guide dress
Set 7, second piston 8 and the second reset guide device 9；
First reset guide component 71；
(the first back-moving spring 711, the first guide rod 712, the first guide sleeve 713 and the first guide type shoe 714；
Second reset guide component 91；
Second back-moving spring 911, the second guide rod 912, the second guide sleeve 913 and the second guide type shoe 914.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and specifically
The utility model is described in further detail for embodiment.
It please refers to Fig.1 and a kind of specific implementation of single-acting cylinder that Fig. 2, Fig. 1 are provided by the utility model embodiment
The cross-sectional view of mode；A kind of specific embodiment party for the single-acting cylinder that Fig. 2 is provided by the utility model embodiment
The structural schematic diagram of formula.
The utility model embodiment discloses a kind of single-acting cylinder, including cylinder barrel 1, piston rod 2, the first cylinder cap 3, second
Cylinder cap 4, third cylinder cap 5, first piston 6, the first reset guide device 7, second piston 8 and the second reset guide device 9.
In this specific embodiment, cylinder barrel 1 is generally cylindrical metal tube, and the both ends of cylinder barrel 1 are separately installed with
One cylinder cap 3 and the second cylinder cap 4, and the center of cylinder barrel 1 is equipped with piston rod 2.Usually, it is opened up on the cylinder cap of 1 one end of cylinder barrel
There is air admission hole, facilitates air inlet.
Piston rod 2 sequentially passes through the first cylinder cap 3, third cylinder cap 5 and the second cylinder cap 4, and is all provided between the contact surface of three
There are sealing device, specially O-ring seal, it can also other kinds of sealing ring.In addition, in piston rod 2 and the first cylinder cap 3 and
The bearing for being used to support piston rod 2, specially roller bearing are equipped between the contact surface of third cylinder cap 5, it is of course also possible to be other
The bearing of type.Correspondingly, handwheel is installed at the top of piston rod 2, to adjust rotation piston rod 2.
First cylinder cap 3 and the second cylinder cap 4 are substantially in short cylindrical shape.In this specific embodiment, the first cylinder cap 3 and second
Cylinder cap 4 is linked together by bolt and nut.Specifically, open up that there are six circumferentially on the first cylinder cap 3 and the second cylinder cap 4
Equally distributed threaded hole, the longer bolt of the six roots of sensation pass through six groups of threaded holes to connect, outer by 3 He of the first cylinder cap in cylinder barrel 1
Second cylinder cap 4 is fixed up.In order to ensure that there is good leakproofness in cylinder barrel 1, therefore in the contact of the first cylinder cap 3 and cylinder barrel 1
It is equipped with sealing device, specially O-ring seal between face, between the second cylinder cap 4 and the contact surface of cylinder barrel 1, other classes can also be used
The sealing ring of type substitutes.Certainly, the structure and connection type of the first cylinder cap 3 and the second cylinder cap 4 are without being limited thereto.
Third cylinder cap 5 is set between the first cylinder cap 3 and the second cylinder cap 4, is fixed in cylinder barrel 1.In this specific embodiment,
Third cylinder cap 5 is located at the centre of cylinder barrel 1, and cylinder barrel 1 is divided into two parts up and down, is formed respectively with the first cylinder cap 3 and the second cylinder cap 4
The identical sealing space of two volumes.Specifically, it is all offered for for 1 clamping of cylinder barrel in the tow sides of third cylinder cap 5
Circular mounting slot is realized and is fixed under the action of above-mentioned bolt and nut pretightning force.In order to ensure that it is empty that two parts of cylinder barrel 1 seal
Between all have good leakproofness, be equipped with sealing device between the positive and negative and the contact surface of cylinder barrel 1 of third cylinder cap 5, specifically
For O-ring seal, it is of course also possible to which other kinds of sealing device, has no effect on realization the purpose of this utility model.
First piston 6 is fixed on piston rod 2, to drive piston rod 2 to act.First piston 6 is set to 3 He of the first cylinder cap
Between third cylinder cap 5, to bear the pressure in cylinder barrel 1.In this specific embodiment, 2 both sides of piston rod are mutual in order to prevent
Gas blowby has opened up two arc grooves for installing sealing device in the side of first piston 6, and the sealing device is specially O-shaped
Sealing ring can also be substituted with other kinds of sealing ring.Meanwhile can wear ring be set in the side of first piston 6, not only
The abrasion of the sealing ring of its side is reduced, and also helps the frictional resistance reduced between first piston 6 and cylinder barrel 1.At this
In specific embodiment, the material of first piston 6 can be the metal materials such as aluminium alloy, cast iron, brass.
First reset guide device 7 is set between first piston 6 and the second cylinder cap 4, and it is multiple to be mainly used for auxiliary piston rod 2
Position.In this specific embodiment, the first reset guide device 7 is evenly distributed along the periphery including several groups in first piston 6 and
The first reset guide component 71 between three cylinder caps 5, specifically includes three group of first reset guide component 71.
First reset guide component 71 includes (the first back-moving spring 711, the first guide rod 712, the first guide sleeve 713.
(the first back-moving spring 711 is installed between first piston 6 and third cylinder cap 5, and own resilient can be relied on to drive and lived
Stopper rod 2 resets.
First guide rod 712 is installed in (the first back-moving spring 711, and bottom is fixed on third cylinder cap 5, is mainly used for
(the first back-moving spring 711 is guided to move.In this specific embodiment, 712 preferred cylinder type metal bar of the first guide rod, bottom end
It is together by a threaded connection with third cylinder cap 5, it is of course also possible to be the connection of other modes.At the bottom of the first guide rod 712
Portion is equipped with the first guide type shoe 714, and the first guide type shoe 714 is installed on third cylinder cap 5, is mainly used for supporting the first guide rod
712.Since during piston rod 2 resets, (the first back-moving spring 711 usually drives the first guide rod 712 to be inserted into first and leads
Into set 713, so that the root of the first guide rod 712 is assembled larger extruding force, the root of the first guide rod 712 may be caused to send out
Raw severe bends deformation, and the first guide type shoe 714 can be with the flexural deformation of the first guide rod of effective protection in degree 712.
First guide sleeve 713 also is located in (the first back-moving spring 711, and top is fixed on first piston 6, is mainly used for
Guide the movement of the first guide rod 712.In this specific embodiment, the first guide sleeve 713 is preferably made of nonmetallic materials
Roughly same outer diameter for tubular structure, internal diameter and the first guide rod 712, and nonmetallic materials can be kept away to a certain extent
Exempt from the abrasion between metal and metal, specifically, the first guide sleeve 713 is made of polyurethane.It is worth noting that, first is oriented to
Bar 712 is inserted in always in the first guide sleeve 713, avoids squeezing off the first guide sleeve 713 or the when (the first back-moving spring 711 resets
One guide rod 712.In addition, the outer diameter of the internal diameter of (the first back-moving spring 711 substantially the first guide sleeve 713 is identical, to prevent first
Resetting spring 711 shakes during compression or recovery, causes sharp wear or shaking, to influence piston rod 2
Operating accuracy.
Second piston 8 is fixed on piston rod 2, and set between the second cylinder cap 4 and third cylinder cap 5.In the specific implementation
In example, second piston 8 is identical with first piston 6, and details are not described herein.
Second reset guide device 9 is set between second piston 8 and third cylinder cap 5, and it is multiple to be mainly used for auxiliary piston rod 2
Position.In this specific embodiment, the second reset guide device 9 is also uniformly arranged in 8 He of second piston along cylinder including several groups
The second reset guide component 91 between third cylinder cap 5, specifically there is four group of second reset guide component 91.
Second reset guide component 91 includes second back-moving spring 911, the second guide rod 912, the second guide sleeve 913.
Wherein, second back-moving spring 911 is identical as (the first back-moving spring 711, and details are not described herein.
The bottom end of second guide rod 912 is mounted on the second cylinder cap 4, and structure is identical with the first guide rod 712, no longer
It repeats.The second guide type shoe 914 for being used to support 912 root of the second guide rod is also installed in the bottom of the second guide rod 912.
Second guide type shoe 914 is identical with the first guide type shoe 714, and details are not described herein.It installs at the top of second guide sleeve 913
In second piston 8, structure is identical with the first guide sleeve 713, and details are not described herein.
In conclusion single-acting cylinder provided by the utility model, including cylinder barrel 1, piston rod 2, the first cylinder cap 3,
Two cylinder caps 4, third cylinder cap 5, first piston 6, the first reset guide device 7, second piston 8 and the second reset guide device 9.The
Cylinder barrel 1 is divided into two parts confined space by three cylinder caps 5, and being respectively arranged with first piston 6 and second in two parts confined space lives
Plug 8, while being also respectively provided with the first reset guide device 7 and the second reset guide device 9.First piston 6 and second piston 8
Two parts confined space is divided into air inlet side and exhaust side respectively, and two air inlet sides are connected.It is passed through when into cylinder barrel 1
When proper amount of gas, two air inlet sides just generate certain pressure while driving piston rod 2 protruding, and stroke is shorter, when stretching
Between shorten, stretch out rapider, action is very fast；Similarly, 7 He of the first reset guide device being respectively arranged in two discharge side
Second reset guide device 9, resets simultaneously, and stroke is shorter, and resetting time shortens, and reset is rapider, and action is very fast.Therefore, originally
The reaction for the single-acting cylinder that utility model is provided is relatively rapid, action is very fast.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this practicality is new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest range.
Claims (10)
1. a kind of single-acting cylinder, including cylinder barrel and piston rod further include the first cylinder cap and for being installed on the cylinder barrel both ends
Two cylinder caps, which is characterized in that further comprise：
Between first cylinder cap and second cylinder cap and the third cylinder cap that is fixed in the cylinder barrel；
It is fixed on the piston rod and set on the first piston between first cylinder cap and the third cylinder cap；
The first reset guide dress between the first piston and the third cylinder cap, for assisting the piston rod to reset
It sets；
It is fixed on the piston rod and set on the second piston between second cylinder cap and the third cylinder cap；
The second reset guide dress between the second piston and the third cylinder cap, for assisting the piston rod to reset
It sets.
2. single-acting cylinder according to claim 1, which is characterized in that the first reset guide device includes several groups
The first reset guide component being evenly distributed along the periphery between the first piston and the third cylinder cap.
3. single-acting cylinder according to claim 2, which is characterized in that the first reset guide component includes：
It is installed between the first piston and the third cylinder cap, first for driving the piston rod to reset resets bullet
Spring；
In the (the first back-moving spring and it is fixed on the third cylinder cap, for guiding the (the first back-moving spring to move
The first guide rod；
In the (the first back-moving spring and it is fixed on the first piston, for guiding the first guide rod movement
First guide sleeve.
4. single-acting cylinder according to claim 3, which is characterized in that the bottom of first guide rod, which is equipped with, to be fixed on
On the third cylinder cap, it is used to support the first guide type shoe of first guide rod.
5. single-acting cylinder according to claim 1, which is characterized in that the second reset guide device includes several groups
The second reset guide component being evenly distributed along the periphery between the second piston and the third cylinder cap.
6. single-acting cylinder according to claim 5, which is characterized in that the second reset guide component includes：
It is installed between the second piston and the third cylinder cap, second for driving the piston rod to reset resets bullet
Spring；
In the second back-moving spring and it is fixed on the third cylinder cap, for guiding the second back-moving spring to move
The second guide rod；
In the second back-moving spring and it is fixed in the second piston, for guiding the second guide rod movement
Second guide sleeve.
7. single-acting cylinder according to claim 6, which is characterized in that the bottom of second guide rod, which is equipped with, to be fixed on
On second cylinder cap, it is used to support the second guide type shoe of second guide rod.
8. single-acting cylinder according to any one of claims 1 to 7, which is characterized in that the third cylinder cap is located at described
The centre of cylinder barrel.
9. single-acting cylinder according to claim 8, which is characterized in that set between the piston rod and first cylinder cap
It is useful for supporting the bearing of the piston rod.
10. single-acting cylinder according to claim 9, which is characterized in that the piston rod respectively with the first piston
Sealing device is equipped between the contact surface that is in contact of the second piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820042206.4U CN207814085U (en) | 2018-01-10 | 2018-01-10 | A kind of single-acting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820042206.4U CN207814085U (en) | 2018-01-10 | 2018-01-10 | A kind of single-acting cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN207814085U true CN207814085U (en) | 2018-09-04 |
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ID=63327064
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820042206.4U Active CN207814085U (en) | 2018-01-10 | 2018-01-10 | A kind of single-acting cylinder |
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| CN (1) | CN207814085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590803A (en) * | 2018-11-22 | 2019-04-09 | 叶挺 | A kind of device of the portable heating lubricating oil on milling machine |
-
2018
- 2018-01-10 CN CN201820042206.4U patent/CN207814085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590803A (en) * | 2018-11-22 | 2019-04-09 | 叶挺 | A kind of device of the portable heating lubricating oil on milling machine |
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