CN207363993U - Dust-proof air cylinder - Google Patents
Dust-proof air cylinder Download PDFInfo
- Publication number
- CN207363993U CN207363993U CN201721134492.9U CN201721134492U CN207363993U CN 207363993 U CN207363993 U CN 207363993U CN 201721134492 U CN201721134492 U CN 201721134492U CN 207363993 U CN207363993 U CN 207363993U
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- CN
- China
- Prior art keywords
- dust
- ring
- proof
- air cylinder
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of Dust-proof air cylinder, solves cylinder piston rod and easily brings dust in slippage slot into, reduce sliding sealing ring service life the problem of.Its key points of the technical solution are that a kind of Dust-proof air cylinder, including cylinder shell, piston rod and piston head, the cylinder shell include metal sleeve, drive end bearing bracket and rear end cap, it is characterised in that：The drive end bearing bracket is provided with guiding pillar in the end face away from metal sleeve, the pillar that is oriented to is provided with the sliding through hole slid for piston rod, the metal dust retaining ring that the edge of the end face for being oriented to pillar along sliding through hole is coaxially arranged with buckling groove and is installed in buckling groove, the outside of the metal dust retaining ring is interference fitted with buckling groove, the inner side of the metal dust retaining ring and piston rod clearance fit, the Dust-proof air cylinder can effectively reduce the amount of dust entered in sliding through hole, reduce wear extent of the dust to sliding sealing ring, so as to increase the service life of sliding sealing ring.
Description
Technical field
A kind of cylinder is the utility model is related to, more particularly to a kind of Dust-proof air cylinder.
Background technology
Cylinder is the cylindrical metal parts for guiding piston to carry out straight reciprocating motion in cylinder, mainly including cylinder shell
Body, piston rod and piston head, cylinder shell include metal sleeve, rear end cap and drive end bearing bracket, wherein, drive end bearing bracket is provided with for living
The perforative sliding through hole of stopper rod.In order to realize sealing of the drive end bearing bracket in sliding through hole, generally in drive end bearing bracket towards metal sleeve
End face along sliding through hole be provided with one sliding sealing ring.But piston rod in sliding through hole slide during, easily
The dust adsorbed on the piston rod is brought into sliding through hole, sliding sealing ring is caused to wear, reduces sliding sealing ring
Service life, have impact on the air-tightness of cylinder.
Utility model content
The purpose of this utility model is to provide a kind of Dust-proof air cylinder, and the Dust-proof air cylinder can effectively reduce and enter sliding
Amount of dust in through hole, reduces dust to sliding the wear extent of sealing ring, so as to increase the service life of sliding sealing ring.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of Dust-proof air cylinder, including cylinder shell, piston rod and piston head, the cylinder shell include metal sleeve, preceding
End cap and rear end cap, it is characterised in that：The drive end bearing bracket is provided with guiding pillar, the guiding in the end face away from metal sleeve
Pillar is provided with the sliding through hole for piston rod sliding, and the end face for being oriented to pillar is coaxially arranged with along the edge of sliding through hole
Buckling groove and the metal dust retaining ring being installed in buckling groove, outside and the buckling groove of the metal dust retaining ring are interference fitted, institute
State inner side and the piston rod clearance fit of metal dust retaining ring.
By using above-mentioned technical proposal, because metal dust retaining ring and piston rod are clearance fit, the metal dust retaining ring
Effect can efficiently reduce into the amount of dust in sliding through hole, can also reduce absorption dust on the piston rod to cunning
The damage of sealing ring is moved, so that the service life of sliding and lifting sealing ring.Meanwhile metal dust retaining ring can be that piston rod is led
To and support, the sliding accuracy of lift piston rod, reduce piston rod occur the amplitude shaken in slipping, be piston rod
Sliding it is more steady.
As further improvement of the utility model, the Dust-proof air cylinder is additionally provided with dust-proof group be connected with being oriented to pillar
Part, the dust preventing component include dust cover, and the dust cover has the dust-proof through hole for piston rod sliding, described dust-proof outer
Shell is coaxially arranged with dust-proof mounting groove along dust-proof through hole towards the end face for being oriented to pillar and is installed on anti-in dust-proof mounting groove
Dirt ring, the madial wall of the dust ring are provided with annular oil storage tank, the dust ring and piston rod clearance fit.
By using above-mentioned technical proposal, dust ring can be socketed in piston rod, and the annular oil storage tank in dust ring can
Storage lubricating oil simultaneously forms oil film between piston rod, when piston rod is in dust-proof logical middle sliding, adsorbs ash on the piston rod
The oil film that dirt can be formed by lubricating oil adsorbs, and comes off from piston rod, and above-mentioned setting can be efficiently reduced by dust-proof group
Enter the amount of dust in sliding through hole after part.Meanwhile when dust accretions to it is a certain amount of when, can be by will be dust-proof from drive end bearing bracket
Component disassembles, and carries out dismounting cleaning to dust ring, and fill clean lubricating oil.This set can be by regularly
More oil change is so as to ensure the anti-dust performance of dust preventing component, easy to operate, significant effect.
As further improvement of the utility model, the dust ring is formed by least two dust ring combination of monomers.
By using above-mentioned technical proposal, dust ring is to be separately set to facilitate the dismounting of dust ring, while also side
The cleaning of lubricating oil and dust in dust ring.
As further improvement of the utility model, the dust cover is additionally provided with fixation towards the one end for being oriented to pillar
Mounting groove, the spacing rubber pad that groove is fixedly mounted and is additionally provided with while offsets with dust ring and metal dust retaining ring.
By using above-mentioned technical proposal, the setting of spacing rubber pad can delay dust ring and metal dust retaining ring
Punching, reduces the wear extent between dust ring and metal dust ring.
As further improvement of the utility model, the spacing rubber pad is provided with gear oil in one end towards dust ring
Sealing lip, the spacing rubber pad are additionally provided with the annular ridge to offset with dust ring in one end towards dust ring.
By using above-mentioned technical proposal, the setting of gear oil seal lip can be efficiently reduced into the profit in sliding through hole
Lubricating oil amount, meanwhile, the setting of annular ridge can prevent dust ring from will keep off oil seal lip crimp, improve gear oil seal lip
Service life.
As further improvement of the utility model, oil suction groove, institute are formed between the gear oil seal lip and annular ridge
Stating gear oil seal lip has lead-in chamfered.
By using above-mentioned technical proposal, after lubricating oil is stopped by gear oil seal lip, oil suction is entered by lead-in chamfered
In groove.The setting of lead-in chamfered can strengthen keeping off the gear oiliness energy of oil seal lip, reduce the lubricants capacity by keeping off oil seal lip.
As further improvement of the utility model, the bottom surface of the dust-proof mounting groove is coaxially arranged with anti-along dust-proof through hole
Dirt seal groove and the dust-proof seal ring being installed in dust seal groove, the dust-proof seal ring are set in one end away from dust ring
It is equipped with dust seal lip.
By using above-mentioned technical proposal, the setting of dust-proof seal ring and dust seal lip, which can be effectively reduced, to be entered
Amount of dust in dust ring, makes dust ring excessively need not frequently be replaced and cleaned.
As further improvement of the utility model, the lateral wall for being oriented to pillar is provided with the first external screw thread, described
The first internal thread for being provided with groove and coordinating with the first external screw thread is fixedly mounted.
By using above-mentioned technical proposal, it is oriented to pillar and dust preventing component is connected through a screw thread cooperation, this fit system
It is simple in construction, easy to disassemble and assemble.
Brief description of the drawings
Fig. 1 is the structure diagram of Dust-proof air cylinder；
Fig. 2 is the diagrammatic cross-section of Dust-proof air cylinder；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is the structure diagram of dust ring.
In figure：1st, cylinder shell；11st, metal sleeve；12nd, drive end bearing bracket；121st, it is oriented to pillar；1211st, the first external screw thread；
122nd, through hole is slid；123rd, structure grooves；124th, seal groove；125th, sealing ring is slid；126th, buckling groove；13rd, rear end cap；2nd, piston
Bar；3rd, piston head；4th, metal dust retaining ring；5th, dust cover；51st, dust-proof through hole；52nd, groove is fixedly mounted；521st, the first internal thread；
53rd, dust-proof mounting groove；54th, dust seal groove；6th, spacing rubber pad；61st, oil seal lip is kept off；611st, lead-in chamfered；62nd, convex annular
Rib；63rd, oil suction groove；7th, dust ring；71st, dust ring monomer；72nd, annular oil storage tank；8th, dust-proof seal ring；81st, dust seal lip.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
As depicted in figs. 1 and 2, a kind of Dust-proof air cylinder, mainly including cylinder shell 1, piston rod 2, piston head 3 and dust-proof group
Part.Wherein, cylinder shell 1 includes metal sleeve 11, drive end bearing bracket 12 and rear end cap 13.
Drive end bearing bracket 12 is provided with the end face away from metal sleeve 11 and is oriented to pillar 121, and drive end bearing bracket 12, which is additionally provided with, to be run through
Drive end bearing bracket 12 and for the sliding sliding through hole 122 of piston rod 2, sliding through hole 122 and is oriented to pillar 121 to be coaxially disposed.Drive end bearing bracket
12 are coaxially disposed the structure grooves 123 for being reduced 12 weight of drive end bearing bracket towards the end face of metal sleeve 11 along sliding through hole 122.Front end
Lid 12 is coaxially additionally provided with seal groove 124 along sliding through hole 122 in the bottom surface of structure grooves 123 and is installed in seal groove 124
Sliding sealing ring 125.
The end face for being oriented to pillar 121 is coaxially arranged with a buckling groove 126 and is installed on along the edge of sliding through hole 122
Metal dust retaining ring 4 in buckling groove 126.Wherein, the outside of metal dust retaining ring 4 is interference fitted with buckling groove 126, metal dust retaining ring
4 inner side and 2 clearance fit of piston rod.The height of metal dust retaining ring 4 is equal to the depth of buckling groove 126.
As shown in Figures 2 and 3, dust preventing component mainly includes dust cover 5, spacing rubber pad 6, dust ring 7 and dust-proof
Sealing ring 8.Wherein, dust cover 5 has the dust-proof through hole 51 slid for piston rod 2, and dust-proof through hole 51 and sliding through hole 122 are same
Axis is set and outside diameter is identical.Dust cover 5 is coaxially arranged with fixed installation towards the one end for being oriented to pillar 121 along dust-proof through hole 51
Groove 52.Wherein, be oriented to 121 lateral wall of pillar and be provided with the first external screw thread 1211, be fixedly mounted groove 52 madial wall be provided with
The first internal thread 521 that first external screw thread 1211 coordinates.
As shown in Figure 2, Figure 3 and Figure 4, dust cover 5 is coaxially disposed in the bottom that groove 52 is fixedly mounted along dust-proof through hole 51
There are dust-proof mounting groove 53 and the dust ring 7 being installed in dust-proof mounting groove 53.Wherein, dust ring 7 is by least two dust rings
Monomer 71 is composed, and the madial wall of dust ring 7 is provided with annular oil storage tank 72, dust ring 7 and 2 clearance fit of piston rod.
In the present embodiment, dust ring 7 has two dust ring monomers 71 to be composed.
The spacing rubber pad 6 that groove 52 is additionally provided with while offsets with dust ring 7 and metal dust retaining ring 4 is fixedly mounted.Wherein,
Spacing rubber pad 6 is provided with gear oil seal lip 61 in one end towards dust ring 7, and spacing rubber pad 6 is towards the one of dust ring 7
End is additionally provided with the annular ridge 62 to offset with dust ring 7.Keep off and oil suction groove 63 formed between oil seal lip 61 and annular ridge 62,
Gear oil seal lip 61 also has lead-in chamfered 611., can be by gear oil seal after piston rod 2 takes lubricating oil out of from dust ring 7
The gear of lip 61 is lower and is flowed into by lead-in chamfered 611 in oil suction groove 63.
The bottom surface of dust-proof mounting groove 53 is also coaxially arranged with dust seal groove 54 along dust-proof through hole 51 and is installed on dust-proof
Dust-proof seal ring 8 in seal groove 54.Wherein, dust-proof seal ring 8 is provided with dust seal lip in one end away from dust ring 7
81。
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (8)
1. a kind of Dust-proof air cylinder, including cylinder shell (1), piston rod (2) and piston head (3), the cylinder shell (1) includes gold
Belong to sleeve (11), drive end bearing bracket (12) and rear end cap (13), it is characterised in that：The drive end bearing bracket (12) is away from metal sleeve (11)
End face be provided be oriented to pillar (121), it is described be oriented to pillar (121) be provided with for piston rod (2) sliding sliding through hole
(122), the edge of the end face for being oriented to pillar (121) along the sliding through hole (122) is coaxially arranged with buckling groove (126) and peace
Loaded on the metal dust retaining ring (4) in buckling groove (126), outside and buckling groove (126) interference of the metal dust retaining ring (4) are matched somebody with somebody
Close, inner side and piston rod (2) clearance fit of the metal dust retaining ring (4).
2. Dust-proof air cylinder according to claim 1, it is characterised in that：The Dust-proof air cylinder is additionally provided with being oriented to pillar
(121) dust preventing component of connection, the dust preventing component include dust cover (5), and the dust cover (5), which has, supplies piston rod
(2) the dust-proof through hole (51) of sliding, the dust cover (5) are same along dust-proof through hole (51) towards the end face for being oriented to pillar (121)
The dust ring (7) that axis is provided with dust-proof mounting groove (53) and is installed in dust-proof mounting groove (53), the dust ring (7) it is interior
Side wall is provided with annular oil storage tank (72), the dust ring (7) and piston rod (2) clearance fit.
3. Dust-proof air cylinder according to claim 2, it is characterised in that：The dust ring (7) is by least two dust ring lists
Body (71) is composed.
4. Dust-proof air cylinder according to claim 3, it is characterised in that：Dust cover (5) direction is oriented to pillar (121)
One end be additionally provided be fixedly mounted groove (52), it is described fixed installation groove (52) be additionally provided with and meanwhile with dust ring (7) and metal
The spacing rubber pad (6) that dust retaining ring (4) offsets.
5. Dust-proof air cylinder according to claim 4, it is characterised in that：The spacing rubber pad (6) is towards dust ring (7)
One end be provided with gear oil seal lip (61), the spacing rubber pad (6) is being additionally provided with and preventing towards one end of dust ring (7)
The annular ridge (62) that dirt ring (7) offsets.
6. Dust-proof air cylinder according to claim 5, it is characterised in that：The gear oil seal lip (61) and annular ridge (62)
Between formed oil suction groove (63), it is described gear oil seal lip (61) there is lead-in chamfered (611).
7. Dust-proof air cylinder according to claim 2, it is characterised in that：The bottom surface of the dust-proof mounting groove (53) leads to along dust-proof
The dust-proof seal ring (8) that hole (51) is coaxially arranged with dust seal groove (124) and is installed in dust seal groove (124), institute
State dust-proof seal ring (8) and one end away from dust ring (7) is provided with dust seal lip (81).
8. Dust-proof air cylinder according to claim 4, it is characterised in that：The lateral wall for being oriented to pillar (121) is provided with
First external screw thread (1211), it is described that the first internal thread for being provided with groove (52) and coordinating with the first external screw thread (1211) is fixedly mounted
(521)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134492.9U CN207363993U (en) | 2017-09-05 | 2017-09-05 | Dust-proof air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721134492.9U CN207363993U (en) | 2017-09-05 | 2017-09-05 | Dust-proof air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363993U true CN207363993U (en) | 2018-05-15 |
Family
ID=62351403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721134492.9U Expired - Fee Related CN207363993U (en) | 2017-09-05 | 2017-09-05 | Dust-proof air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
| CN112814966A (en) * | 2020-12-29 | 2021-05-18 | 常德迪格机械制造有限公司 | Hydraulic oil cylinder body and manufacturing method thereof |
-
2017
- 2017-09-05 CN CN201721134492.9U patent/CN207363993U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
| CN108486743B (en) * | 2018-06-01 | 2024-04-12 | 山东日发纺织机械有限公司 | Water-proof ring of beating-up shaft of water-jet loom |
| CN112814966A (en) * | 2020-12-29 | 2021-05-18 | 常德迪格机械制造有限公司 | Hydraulic oil cylinder body and manufacturing method thereof |
| CN112814966B (en) * | 2020-12-29 | 2023-04-25 | 常德迪格机械制造有限公司 | Hydraulic cylinder body and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20190905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |