CN205559417U - Anticorrosion is pneumatic cylinder for nonoculture - Google Patents
Anticorrosion is pneumatic cylinder for nonoculture Download PDFInfo
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- CN205559417U CN205559417U CN201620397366.1U CN201620397366U CN205559417U CN 205559417 U CN205559417 U CN 205559417U CN 201620397366 U CN201620397366 U CN 201620397366U CN 205559417 U CN205559417 U CN 205559417U
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Abstract
The utility model discloses an anticorrosion is pneumatic cylinder for nonoculture, including cylinder, cylinder end, piston and piston rod, the piston separates into the inner chamber of cylinder no pole chamber and has the pole chamber, be equipped with the no pole chamber of control on the piston and have the check valve that communicates and block between the pole chamber, just the import of check valve is access to there is the pole chamber, no pole chamber is access to in the export. The utility model discloses the check valve has been set up on the piston to to there being the pole intracavity to pour into an amount of hydraulic oil into, be in like this before the use the utility model discloses an in the working process, when promoting the piston removal, having the oil -gas mixture bowel movement of pole intracavity to cross the no pole chamber of check valve entering, can improving the availability factor of pneumatic cylinder, when the piston resetd, the check valve is contrary to be ended, and there is the pole intracavity to form the negative pressure and makes the hydraulic oil emergence atomize, under the protection of oil mist, the utility model discloses can the corrosion can not take place under the condition about not using for a long time, work as moreover the utility model discloses during restart, can steadily not have and crawl to the energy has been practiced thrift to recycle section potential energy.
Description
Technical field
This utility model relates to a kind of anticorrosion single-action hydraulic cylinder.
Background technology
Hydraulic cylinder can be divided into single-action hydraulic cylinder and double acting hydraulic cylinder by action mode.The wherein internal junction of single-action hydraulic cylinder
Structure is fairly simple, generally comprises cylinder barrel, cylinder head, piston and piston rod, and the inner chamber of cylinder barrel is divided into rodless cavity by described piston
And rod chamber.Single-action hydraulic cylinder can only provide Unidirectional acting force, needs to rely on External Force Acting, such as use and cylinder during retraction
The single-action hydraulic cylinder of cylinder internal diameter big plunger very nearly the same and the piston type single-action hydraulic cylinder with steam vent.
The rod chamber of above two single-action hydraulic cylinder, owing to not having hydraulic oil, is therefore easily given birth in the case of not using for a long time
Rust, poor reliability, need periodic maintenance, use cost is high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in construction, easily fabricated, the anticorrosion that work efficiency is high
Erosion single-action hydraulic cylinder.
In order to solve above-mentioned technical problem, this utility model adopts the following technical scheme that a kind of anticorrosion single-action hydraulic cylinder,
Including cylinder barrel, cylinder head, piston and piston rod, the inner chamber of cylinder barrel is divided into rodless cavity and rod chamber, described work by described piston
It is provided with the check valve controlling to connect and block between rodless cavity and rod chamber beyond the Great Wall, and the import of described check valve is led to and had bar
Rodless cavity is led in chamber, outlet.
Further, the shoe cream room that described piston rod is provided with, described shoe cream room connects with rod chamber.
Further, described piston is provided with the installing hole for installing check valve, described installing hole and shoe cream room and without bar
Chamber connects.
Further, described check valve includes valve pocket, spool, elastic component and block, described spool, elastic component and gear
Block along valve pocket inlet side to outlet side, direction be successively set in valve pocket, under the elastic force effect of elastic component, spool with
Valve pocket is formed to seal and coordinates, and is blocked between rodless cavity and rod chamber, and spool overcomes elastic force effect the going out to valve pocket of elastic component
Mouth side shifting, the sealing that spool is formed with valve pocket coordinates disappearance, is connected between rodless cavity and rod chamber.
Further, the sealing that described spool is formed with valve pocket coordinates to seal for taper surface and coordinates.
Further, described cylinder head is provided with the fuel feed hole connected with rodless cavity.
Further, described piston is connected with piston rod thread.
The beneficial effects of the utility model are:
This utility model is provided with check valve on piston, and injects a certain amount of hydraulic oil before use in rod chamber, this
Sample is in work process of the present utility model, and when promoting piston to move, the gas mixture in rod chamber will pass through check valve and enters
Enter rodless cavity, the service efficiency of hydraulic cylinder can be improved, during piston reset, check valve check, form negative pressure in rod chamber and make
Hydraulic oil is atomized, and under the corrosion-resisting function of mist of oil, this utility model will not be able to be sent out in the case of not using for a long time
Get rusty erosion, improve the reliability of hydraulic pump, and when this utility model restarts, it is possible to steadily without creeping, and return
Receiving portions potential energy, has saved energy；It addition, this utility model simple in construction, easily fabricated, existing equipment is changed little,
Need not use big plunger, save material greatly, economic and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged drawing at the A of Fig. 1.
Being labeled as of each parts in accompanying drawing: 1 cylinder barrel, 2 cylinder heads, 21 fuel feed holes, 3 pistons, 31 installing holes, 32 cylindrical
Boss, 321 oil ducts, 4 piston rods, 41 shoe cream rooms, 42 oil-through holes, 51 valve pockets, 52 spools, 53 elastic components, 54 gears
Block, 6 cylinder sleeves, 7 throttle orifices, a rodless cavity, b rod chamber.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described:
See Fig. 1.
This utility model anticorrosion single-action hydraulic cylinder, including cylinder barrel 1, cylinder head 2, piston 3 and piston rod 4, described work
The inner chamber of cylinder barrel 1 is divided into rodless cavity a and rod chamber b by plug 3, and described piston 3 is provided with control rodless cavity a and rod chamber
The check valve connected between b and block, and rod chamber b is led in the import of described check valve, rodless cavity a is led in outlet.
This utility model before use, first injects hydraulic oil in rod chamber b, hydraulic oil can not fill (regulate according to cylinder diameter,
General 200cc), it is necessary to assure rod chamber b has a certain amount of air, for forming negative pressure when hydraulic cylinder resets；
Operationally, hydraulic oil enters rodless cavity a and promotes piston 3 to move this utility model, and along with the movement of piston 3,
Pressure in rod chamber b is gradually increased, when the pressure in rod chamber b arrives a timing, and check valve is opened, rodless cavity a
And connect between rod chamber b, the gas mixture in rod chamber b will pass through check valve and enters rodless cavity a, due to rod chamber
Hydraulic oil in b also can enter rodless cavity a, result in that to actually enter the hydraulic oil flow quantitative change of a in rodless cavity big, thus increases
Add the operating rate of hydraulic cylinder, improve the service efficiency of hydraulic cylinder；When piston 3 resets, the pressure in rod chamber b subtracts
Little, due to the non-return effect of check valve, check valve closes, is blocked so that rod chamber between rodless cavity a and rod chamber b
Form negative pressure in b, and under the effect of negative pressure, the hydraulic oil in rod chamber b is atomized, so, when this practicality
Novel in the case of not using for a long time, owing to there is mist of oil in rod chamber b, serve etch-proof effect, therefore cylinder barrel
1 will not occur corrosion；It addition, when this utility model runs again, owing to there is negative pressure in rod chamber b so that this reality
Can start in the case of lower than existing single-action hydraulic cylinder pressure with novel, thus reclaim part potential energy.
In an embodiment of the present utility model, the fuel feed hole 21 connected with rodless cavity a is arranged on cylinder head 2.
In an embodiment of the present utility model, described piston 3 is connected with piston rod 4 threaded engagement.This connected mode is just
In dismounting, certain this utility model can also use other connected mode, such as welding.
In an embodiment of the present utility model, the shoe cream room 41 that described piston rod 4 is provided with, described shoe cream room 41 with have
Bar chamber b connects, and described piston 3 is provided with the installing hole 31 for installing check valve, described installing hole 31 and shoe cream room 41
And rodless cavity a connection.So import of check valve leads to rod chamber b by shoe cream room 41, piston 3 run to away from
During cylinder head 2 position, hydraulic oil and portion gas effectively can be stored in its intracavity by shoe cream room 41, improve hydraulic oil and deposit
Reserves, and prevent vacuum excessive, it is ensured that piston rod can reset smoothly.
In specifically implementing, cylindrical boss 32 is set in the side of the close piston rod 4 of piston 3, this cylindrical boss
32 stretch into piston rod 4 and piston rod 4 threaded engagement, and this cylindrical boss 32 has oil duct 321, and installing hole 31 passes through
Oil duct 321 connects with shoe cream room 41, and shoe cream room 41 is connected with rod chamber b by the oil-through hole 42 being arranged on piston rod 4
Logical；Described piston rod 4 is provided with, with close piston 3 position of cylindrical boss 32, the throttle orifice 7 connected with oil duct 321,
So, when piston rod 4 runs and is blocked by cylinder sleeve 6 to oil-through hole 42 thereon, the gas mixture energy in rod chamber b
Enough enter rodless cavity a by throttle orifice 7, oil duct 321, check valve, reach cushioning effect.
In an embodiment of the present utility model, seeing Fig. 2, described check valve includes valve pocket 51, spool 52, elastic component
53 and block 54, described spool 52, elastic component 53 and block 54 are along the inlet side (on the right side of diagram) of valve pocket 51
Direction to outlet side (on the left of diagram) is successively set in valve pocket 51, under the elastic force effect of elastic component 53, and spool 52
Being formed to seal with valve pocket 51 and coordinate, be blocked between rodless cavity a and rod chamber b, spool 52 overcomes the bullet of elastic component 53
Power effect is moved to outlet side, and the sealing that spool 52 is formed with valve pocket 51 coordinates disappearance, between rodless cavity a and rod chamber b
Connected.This one-way valve structures is simple, easy to use, it is easy to adjust.
In an embodiment of the present utility model, seeing Fig. 2, the right-hand member end of described spool 52 is vertebra platform shape, at elastic component
Under the elastic force effect of 53, the end in vertebra platform shape of this spool 52 forms taper surface sealing and coordinates with valve pocket 51.Taper surface is close
The compatible degree that envelope coordinates is higher, and sealing effectiveness is more preferable；
Spool 52 is that one end open, the hollow structure of other end closing, and its open end are to elastic component 53, block 54
Circulus, elastic component 53 typically selects spring, and spool 52 is stretched in its one end, and the other end stretches into block 54, so can
Ensure that its elastic force is uniform, stable；The outer surface of spool 52 is close to its right-hand member end and is provided with the ring-shaped step of indent, this ring
Shape step is provided with the rank through hole 521 communicated with spool 52 inner chamber, and spool 52 seals with valve pocket 51 formation when coordinating, and this rank is led to
Hole 521 is blocked with the part on the right side of spool 52 that is positioned at of valve pocket 1 inner chamber, and the sealing that spool 52 is formed with valve pocket 51 is joined
When closing disappearance, this rank through hole 521 connects with the part on the right side of spool 52 that is positioned at of valve pocket 1 inner chamber, and check valve is opened, nothing
Connected between bar chamber a and rod chamber b.
Certainly, this utility model can also select the check valve of other version, is not limited with above-mentioned.
Be to be understood that example as herein described and embodiment only for explanation, those skilled in the art can make various according to it
Amendment or change, in the case of without departing from this utility model spirit, broadly fall into protection domain of the present utility model.
Claims (7)
1. an anticorrosion single-action hydraulic cylinder, including cylinder barrel (1), cylinder head (2), piston (3) and piston rod (4),
The inner chamber of cylinder barrel (1) is divided into rodless cavity (a) and rod chamber (b) by described piston (3), it is characterised in that: described work
Plug (3) is provided with the check valve controlling to connect and block between rodless cavity (a) and rod chamber (b), and described check valve
Import lead to rod chamber (b), outlet lead to rodless cavity (a).
2. anticorrosion single-action hydraulic cylinder as claimed in claim 1, it is characterised in that: described piston rod (4) is provided with
Shoe cream room (41), described shoe cream room (41) connects with rod chamber (b).
3. anticorrosion single-action hydraulic cylinder as claimed in claim 2, it is characterised in that: described piston (3) is provided with use
In the installing hole (31) of installation check valve, described installing hole (31) connects with shoe cream room (41) and rodless cavity (a).
4. the anticorrosion single-action hydraulic cylinder as described in claim 1 or 2 or 3, it is characterised in that: described check valve includes
Valve pocket (51), spool (52), elastic component (53) and block (54), described spool (52), elastic component (53) with
And in block (54) is successively set on valve pocket (51) along the inlet side of valve pocket (51) to the direction of outlet side, in elasticity
Under the elastic force effect of part (53), spool (52) is formed to seal with valve pocket (51) and coordinates, rodless cavity (a) and rod chamber
B being blocked between (), spool (52) overcomes the elastic force effect of elastic component (53) to move to the outlet side of valve pocket (51),
The sealing that spool (52) is formed with valve pocket (51) coordinates disappearance, is connected between rodless cavity (a) and rod chamber (b).
5. anticorrosion single-action hydraulic cylinder as claimed in claim 4, it is characterised in that: described spool (52) and valve pocket (51)
The sealing formed coordinates to seal for taper surface and coordinates.
6. anticorrosion single-action hydraulic cylinder as claimed in claim 1 or 2, it is characterised in that: described cylinder head sets on (2)
The fuel feed hole (21) that being and not being bar chamber (a) connects.
7. anticorrosion single-action hydraulic cylinder as claimed in claim 1 or 2, it is characterised in that: described piston (3) is with alive
Stopper rod (4) threaded engagement connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620397366.1U CN205559417U (en) | 2016-04-29 | 2016-04-29 | Anticorrosion is pneumatic cylinder for nonoculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620397366.1U CN205559417U (en) | 2016-04-29 | 2016-04-29 | Anticorrosion is pneumatic cylinder for nonoculture |
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| Publication Number | Publication Date |
|---|---|
| CN205559417U true CN205559417U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620397366.1U Active CN205559417U (en) | 2016-04-29 | 2016-04-29 | Anticorrosion is pneumatic cylinder for nonoculture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757042A (en) * | 2016-04-29 | 2016-07-13 | 合肥长源液压股份有限公司 | Anticorrosion single-action hydraulic cylinder |
-
2016
- 2016-04-29 CN CN201620397366.1U patent/CN205559417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757042A (en) * | 2016-04-29 | 2016-07-13 | 合肥长源液压股份有限公司 | Anticorrosion single-action hydraulic cylinder |
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| GR01 | Patent grant |