CN206754037U - A kind of mechanical locking sealed cylinder - Google Patents
A kind of mechanical locking sealed cylinder Download PDFInfo
- Publication number
- CN206754037U CN206754037U CN201720416998.2U CN201720416998U CN206754037U CN 206754037 U CN206754037 U CN 206754037U CN 201720416998 U CN201720416998 U CN 201720416998U CN 206754037 U CN206754037 U CN 206754037U
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- piston rod
- piston
- cap
- cylinder
- cylinder barrel
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Abstract
A kind of mechanical locking sealed cylinder, including cylinder bottom, cylinder barrel and piston rod, cylinder bottom is arranged on one end of cylinder barrel, the other end of cylinder barrel is internally provided with standby cap, standby cap is enclosed on one end of piston rod, and the contact surface of the standby cap and piston rod is provided with V-arrangement combined seal ring and filler pressure is female, and the female contact position with piston rod of filler pressure is provided with dust ring, the standby cap is fixed on cylinder barrel by socket cap hexagon socket head cap screw, and the center line of socket cap hexagon socket head cap screw is parallel with the plane that filler pressure is female.The use that the utility model passes through socket cap screw, and the center line of socket cap screw is parallel with the plane that filler pressure is female, the stepless action of screw pressure is set to be pressed in filler female, effectively prevent the female loosening of filler pressure, and acted on by the tightening of hexagonal holding screw in nylon head, it ensure that standby cap will not loosen, and be used cooperatively with V-arrangement combined seal ring, so as to ensure the validity of piston rod packing.
Description
Technical field
Cylinder seal technical field is the utility model is related to, more particularly to a kind of mechanical locking sealed cylinder.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion（Or oscillating motion）Hydraulic pressure perform member
Part, its simple in construction, reliable operation, during with it to realize reciprocating motion, deceleration device can be removed from, and there is no drive gap,
Stable movement, therefore be used widely in various mechanical hydraulic systems.
Hydraulic jack is in use often due to sealing part abrasion, cylinder barrel abrasion, inwall scuffing, inner wall corrosion, piston
Or piston rod scuffing etc. causes failure, the sealing property of hydraulic test executive component hydraulic cylinder directly influences the performance of equipment,
Especially larger hydraulic jack is repaired after its sealing is impaired or replacing parts is relatively difficult and cost is higher.
And hydraulic jack at work can be certain caused by entering foul and gum deposit to hydraulic cylinder abrasion, make
It is failure to actuate or acts into hydraulic jack and is little.
Utility model content
The purpose of this utility model is to provide a kind of mechanical locking sealed cylinder, ensure that the effective of piston rod packing
Property, and effectively prevent the entrance of the debris such as foul and gum deposit.
Above-mentioned purpose of the present utility model technical scheme is that：A kind of mechanical locking Seal Oil
Cylinder, including cylinder bottom, cylinder barrel and piston rod, cylinder bottom are arranged on one end of cylinder barrel, and the other end of cylinder barrel is internally provided with standby cap, standby cap
Be enclosed on one end of piston rod, the contact surface of standby cap and piston rod is provided with V-arrangement combined seal ring and filler pressure is female, filler pressure it is female with
The contact position of piston rod is provided with dust ring, and standby cap is fixed on cylinder barrel by socket cap hexagon socket head cap screw, and six in socket cap
The center line of corner bolt is parallel with the plane that filler pressure is female.
By using above-mentioned technical proposal, by the use of socket cap screw, and socket cap screw
Center line is parallel with the plane that filler pressure is female, the stepless action of screw pressure is pressed in filler female, effectively prevents the female pine of filler pressure
It is dynamic, and be used cooperatively with V-arrangement combined seal ring, so as to ensure the validity of piston rod packing, and the outer end of filler pressure mother leads to
Wiper seal is crossed, effectively prevent the entrance of the debris such as foul and gum deposit.
Preferably, earrings one is provided with cylinder bottom, the tail end of piston rod is provided with earrings two, and on earrings one and earrings two
Straight pump nozzle is mounted on, and elastic self-lubricating bushing is equipped with earrings one and earrings two.
By using above-mentioned technical proposal, the elastic self-lubricating bushing on earrings one and earrings two makes it have relatively low rub
Wipe coefficient while there is higher wear-resisting intensity and longer service life again.
Preferably, annular groove is provided with standby cap, annular groove is provided with back-up ring and the O shapes for jam-packed back-up ring seal
Three are enclosed, hexagonal holding screw in the nylon head for fixed locking standby cap is provided with cylinder barrel.
By using above-mentioned technical proposal, standby cap is positioned by hexagonal holding screw in nylon head, and played solid
Fixed effect, it is used cooperatively with socket cap hexagon socket head cap screw, realizes the fixation of standby cap, ensures the axial line pair of piston rod and cylinder barrel
In.
Preferably, the head end of piston rod is provided with piston, and the head end of piston rod is additionally provided with the lock for fixed piston
The contact jaw of tight nut, locking nut and cylinder bottom sets flexible protection pad.
By using above-mentioned technical proposal, piston can be fixed on the piston rod by locking nut, avoid piston rod
When driving piston movement, piston loosens, and causes the abrasion of piston and cylinder barrel, elastic protection pad can buffer locking nut to cylinder bottom
Impact.
Preferably, the contact surface of piston and piston rod is by setting O-ring seals one to be tightly connected.
By using above-mentioned technical proposal, piston is realized by O-ring seals one with piston rod and sealed, and reduce piston with
Abrasion between piston rod.
Preferably, the contact surface of piston and cylinder barrel is provided with guide ring and piston packing.
By using above-mentioned technical proposal, piston packing realizes the sealing between piston and cylinder barrel, is sealed with O shapes
Circle one works, and ensure that the air-tightness between cylinder barrel, piston and piston rod, and reduces abrasion, and guide ring prevents piston from existing
Occur directly to contact and rub with cylinder barrel in motion process, play a part of protection cylinder barrel and be not damaged by with piston.
Preferably, the surface both ends of cylinder barrel are provided with oil nozzle and the oil for blocking oil nozzle blocks up, and oil is stifled to be passed through with oil nozzle
O-ring seals two are set to be tightly connected.
By using above-mentioned technical proposal, O-ring seals have high sealing and corrosion resistance, ensure that oil it is stifled with
The compactness of oil nozzle connection, avoids the leakage of hydraulic oil.
In summary, the utility model has the advantages that：By the use of socket cap screw, and cylinder
The center line of head soket head cap screw is parallel with the plane that filler pressure is female, the stepless action of screw pressure is pressed in filler female, effectively anti-
The only female loosening of filler pressure, and acted on by the tightening of hexagonal holding screw in nylon head, it ensure that standby cap will not loosen, and
Be used cooperatively with V-arrangement combined seal ring, so as to ensure the validity of piston rod packing, and the female outer end of filler pressure pass through it is dust-proof
Circle sealing, effectively prevent the entrance of the debris such as foul and gum deposit, the use of sealing ring and guide ring reduces piston
Occur directly to contact and rub with cylinder body in motion process, play a part of protection cylinder barrel and piston.
Brief description of the drawings
Fig. 1 is overall cross section of the present utility model；
Fig. 2 is outward appearance top view of the present utility model；
Fig. 3 is the utility model Fig. 1 part A enlarged drawing；
Fig. 4 is the utility model Fig. 1 part B enlarged drawing.
Reference：1st, earrings one；2nd, cylinder bottom；3rd, locking nut；4th, piston；5th, guide ring；6th, piston packing；71、O
Shape sealing ring one；72nd, O-ring seals two；73rd, O-ring seals three；8th, cylinder barrel；9th, piston rod；10th, standby cap；11st, oil nozzle；12、
Back-up ring；13rd, V-arrangement combined seal ring；14th, filler pressure is female；15th, socket cap hexagon socket head cap screw；16th, dust ring；17th, earrings two；18、
Straight pump nozzle；19th, oil is stifled；20th, hexagonal holding screw in nylon head；21st, elastic self-lubricating bushing；22nd, elastic protection pad；23rd, ring
Connected in star.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of mechanical locking sealed cylinder, is mainly made up of, piston rod cylinder barrel 8 and piston rod 9
Piston 4 is provided with 9, one end of cylinder barrel 8 is provided with cylinder bottom 2, sets earrings 1 on cylinder bottom 2, the tail end of piston rod 9 is provided with
Earrings 2 17, and straight pump nozzle 18 is mounted on earrings 1 and earrings 2 17, and be equipped with earrings 1 and earrings 2 17
Elastic self-lubricating bushing 21, make it have extremely low coefficient of friction while there is higher wear-resisting intensity and longer use again
Life-span.
As shown in figures 1 and 3, the other end of cylinder barrel 8 is internally provided with standby cap 10, in the standby cap 10 that piston rod 9 is enclosed on, protects
The axial line centering of piston rod 9 and cylinder barrel 8, standby cap 10 and the contact surface of piston rod 9 are demonstrate,proved, is sealed by V-arrangement combined seal ring 13,
And pressing mother 14 to be compressed by filler, filler pressure mother 14 is provided with for preventing dust from falling into the contact position of piston rod 9
Dust ring 16, the annular groove 23 for inserting back-up ring 12 is provided with standby cap 10, and by installing O additional in annular groove 23
The jam-packed back-up ring 12 of shape sealing ring 3 73, the upside of standby cap 10 are fixed on cylinder barrel 8 by socket cap hexagon socket head cap screw 15, and bottom passes through
Nylon head in hexagonal holding screw 20 fix locking, the center line of socket cap hexagon socket head cap screw 15 and the plane of filler pressure mother 14
It is parallel, make the active force stepless action of socket cap hexagon socket head cap screw 15 in filler pressure mother 14, the air-tightness of guarantee piston rod 9, oil
Stifled 19 are sealed with oil nozzle 11 using O-ring seals 2 72, avoid the leakage of hydraulic oil.
As shown in Figure 1 and Figure 4, piston 4 is locked on piston rod 9 by locking nut 3, and the bullet on the top of locking nut 3
Property protection pad 22 can slow down the impact of piston 4 and cylinder barrel 8, sealed between piston 4 and piston rod 9 using O-ring seals 1,
Piston 4 prevents piston 4 from occurring directly to contact and rub with cylinder barrel 8 in motion process with the contact surface of cylinder barrel 8 by guide ring 5
Wipe, and sealed by piston packing 6.
It is to utility model works rationale below：Straight reciprocating motion is carried out with piston 4 by piston rod 9,
Standby cap 10 positions to piston rod 9, makes the axial line centering of piston rod 9 and cylinder barrel 8, socket cap hexagon socket head cap screw 15 is to filler
The female 14 uniform applying powers of pressure, ensure contact sealing of the filler pressure mother 14 with piston rod 9, and coordinate with dust ring 16, avoid dirty
The entrance of the debris such as thing and gum deposit.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (7)
1. a kind of mechanical locking sealed cylinder, including cylinder bottom（2）, cylinder barrel（8）And piston rod（9）, cylinder bottom（2）Installed in cylinder barrel
（8）One end, cylinder barrel（8）The other end be internally provided with standby cap（10）, standby cap（10）It is enclosed on piston rod（9）One end, it is special
Sign is：The standby cap（10）With piston rod（9）Contact surface be provided with V-arrangement combined seal ring（13）Pressed with filler female（14）,
The filler pressure is female（14）With piston rod（9）Contact position be provided with dust ring（16）, the standby cap（10）By in socket cap
Hex bolts（15）It is fixed on cylinder barrel（8）On.
A kind of 2. mechanical locking sealed cylinder according to claim 1, it is characterised in that：The cylinder bottom（2）Upper setting
There is earrings one（1）, the piston rod（9）Tail end be provided with earrings two（17）, and earrings one（1）With earrings two（17）On pacify
Equipped with straight pump nozzle（18）, and earrings one（1）With earrings two（17）On be provided with elastic self-lubricating bushing（21）.
A kind of 3. mechanical locking sealed cylinder according to claim 1, it is characterised in that：The standby cap（10）Upper setting
There is annular groove（23）, the annular groove（23）It is provided with back-up ring（12）With for jam-packed back-up ring（12）O-ring seals three
（73）, the cylinder barrel（8）On be provided with for fixed locking standby cap（10）Nylon head in hexagonal holding screw（20）.
A kind of 4. mechanical locking sealed cylinder according to claim 1, it is characterised in that：The piston rod（9）Head
End is provided with piston（4）, and piston rod（9）Head end be additionally provided with for fixed piston（4）Locking nut（3）, the lock
Tight nut（3）With cylinder bottom（2）Contact jaw flexible protection pad is set（22）.
A kind of 5. mechanical locking sealed cylinder according to claim 4, it is characterised in that：The piston（4）With piston
Bar（9）Contact surface by setting O-ring seals one（71）It is tightly connected.
A kind of 6. mechanical locking sealed cylinder according to claim 5, it is characterised in that：The piston（4）With cylinder barrel
（8）Contact surface be provided with guide ring（5）And piston packing（6）.
A kind of 7. mechanical locking sealed cylinder according to claim 1, it is characterised in that：The cylinder barrel（8）Surface
Both ends are provided with oil nozzle（11）With for blocking oil nozzle（11）Oil block up（19）, it is described oily stifled（19）With oil nozzle（11）By setting
Put O-ring seals two（72）It is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720416998.2U CN206754037U (en) | 2017-04-20 | 2017-04-20 | A kind of mechanical locking sealed cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720416998.2U CN206754037U (en) | 2017-04-20 | 2017-04-20 | A kind of mechanical locking sealed cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754037U true CN206754037U (en) | 2017-12-15 |
Family
ID=60614432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720416998.2U Active CN206754037U (en) | 2017-04-20 | 2017-04-20 | A kind of mechanical locking sealed cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623202A (en) * | 2020-12-11 | 2021-04-09 | 哈尔滨飞机工业集团有限责任公司 | Lubricating support and sealing dustproof device for undercarriage buffer strut |
-
2017
- 2017-04-20 CN CN201720416998.2U patent/CN206754037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623202A (en) * | 2020-12-11 | 2021-04-09 | 哈尔滨飞机工业集团有限责任公司 | Lubricating support and sealing dustproof device for undercarriage buffer strut |
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