CN201092987Y - Inner guiding torsion-proof telescopic piston jar - Google Patents
Inner guiding torsion-proof telescopic piston jar Download PDFInfo
- Publication number
- CN201092987Y CN201092987Y CN 200720086645 CN200720086645U CN201092987Y CN 201092987 Y CN201092987 Y CN 201092987Y CN 200720086645 CN200720086645 CN 200720086645 CN 200720086645 U CN200720086645 U CN 200720086645U CN 201092987 Y CN201092987 Y CN 201092987Y
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- piston
- guiding
- cylinder body
- cylinder
- sealing
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Abstract
The utility model relates to an internal guiding anti-torsion hydraulic or pneumatic retracting-type cylinder, which belongs to an executive component of a hydraulic or pneumatic device. The utility model comprises a cylinder body and a piston which is mounted in the cylinder body, one end or two ends of the piston are connected with a piston rod, the other end of the piston rod is extended out of the cylinder body along an axis, the difference is that a guiding groove which is parallel to the axial cord of the cylinder body is opened on the inner wall of the cylinder body, a key groove are correspondingly opened on the periphery of the piston, and a sealing guiding key which is matched with the guiding groove is arranged in the key groove. The internal guiding anti-torsion hydraulic or pneumatic retracting-type cylinder has the advantages that internal space of the cylinder body is fully utilized through adopting an internal guiding anti-torsion piston structure, integral size of the mechanism is reduced, integral structure is led to be simple and compact, guiding accuracy and anti-torsion ability are increased through arranging the sealing guiding key on the piston, and the utility model can be applied to some occasions which are required by special working conditions. The internal guiding anti-torsion hydraulic or pneumatic cylinder adopts various sealing modes, which solves leakage problem of internal guiding, and guarantees sealing property.
Description
Technical field
The utility model relates to the antitorque commentaries on classics of a kind of interior guiding and surges or the pneumatic extension piston cylinder, belongs to the executive component of a kind of liquid, pneumatic equipment.
Background technique
Existing telescopic piston cylinder is made of cylinder body, piston and three parts of piston rod usually, piston rod links to each other with piston, stretches with moving of piston, because no circumferential stop member between piston and the cylinder inner bore, outside being subjected to, piston rod during torsional interaction, can produce the situation of piston rod rotation.But in some special applying working condition occasions, require piston rod to deflect or to rotate, designed the guiding gas-liquid cylinder that has piston rod guide for this reason.These guiding gas-liquid cylinders all are externally to have guider, and this makes the overall dimensions of gas-liquid cylinder become big, and under the limited operating mode of some space outerpaces, the use of gas-liquid cylinder is very restricted.In addition, the critical component of guider is a guide rod, and the stroke of gas-liquid cylinder is big more, and the length of guide rod is just long more, causes the amount of deflection of guide rod to increase, and the precision of guiding reduces.If improve the rigidity that the precision of guiding just needs to improve guide rod, under the situation of using identical material, just inevitably need to strengthen the size of guide rod, so the precision and the guide rod size of guiding can not be taken into account.
Summary of the invention
Technical problem to be solved of the present utility model is to provide a kind of simple and compact for structure at the deficiency of above-mentioned prior art existence, and the antitorque commentaries on classics of interior guiding that guiding accuracy and torsional rigidity are high is surged or the pneumatic extension piston cylinder.
The utility model is that the technological scheme that problem adopted of the above-mentioned proposition of solution is: include cylinder body 14 and be installed in the interior piston 3 of cylinder body, the one or both ends of piston are connected with piston rod 6, the other end of piston rod stretches out cylinder body vertically, its difference is to offer the guiding groove 17 with the Boring mill line parallel on the inwall of cylinder body, at the corresponding keyway of offering of periphery of piston, install sealing feather key 4 in the keyway with the guiding groove phase configuration.
Press such scheme, described guiding groove 17 is for running through the straight line type guiding groove of whole cylinder body, and guiding groove can be laid 1～2, and disposes the sealing feather key of equal number on piston.
Press such scheme, described sealing feather key 4 is strip, is fixed in the piston keyway, offers seal groove and disposes Stamping Steel Ribbon 15 in the middle of the upper end of sealing feather key, offers airtight groove 19 in the both sides of sealing feather key 4, and forms motive sealing between the guiding groove bi-side.
The beneficial effects of the utility model are because the antitorque commentaries on classics piston structure that leads in adopting, made full use of the inner space of cylinder body, reduced the overall dimensions of mechanism, make overall structure simply compact, precision and anti-twisting property that the sealing feather key has improved guiding are set on the piston, can be suitable for using in the occasion of some special operation condition requirements.The antitorque commentaries on classics gas-liquid cylinder of interior guiding adopts several sealing means, has solved the leakage problem of inner orientation, has guaranteed sealability.Advantages such as the utlity model has the guiding accuracy height, physical dimension is little, and anti-twisting property is strong.
Description of drawings
Fig. 1 is an embodiment's of the utility model a positive view.
Fig. 2 is the partial enlarged drawing of piston seal feather key part among Fig. 1.
Fig. 3 is the plan structure figure that seals feather key and guiding groove phase configuration among embodiment of the utility model.
Fig. 4 is the C-C sectional drawing among Fig. 1.
Embodiment
Further describe embodiment of the present utility model below in conjunction with accompanying drawing.
It is the flexible piston cylinder of a single pole, include the cylinder body 14 of tubular, the two ends of cylinder body are installed front cover 8 and rear end cover 1 respectively, rear end cover and cylinder body are connected as a body, and be provided with the liquid in-out/pore 16 that is connected with inner chamber of cylinder block, front cover and cylinder body front end are spun by screw thread, and by positioning screwn 7 tightenings, the joint is provided with seal ring 9, offer bearing hole with the piston rod phase configuration in the centre of front cover, the front and back of bearing hole are installed dust ring 12 respectively, guide ring 11 and seal ring 10 also offer the liquid in-out/pore 13 that is connected with inner chamber of cylinder block on front cover; Be installed on piston 3 in the cylinder body, be installed on seal ring 2 and cylinder inner bore phase configuration on the piston, the front end of piston connects piston rod 6, and the other end of piston rod stretches out the bearing hole of front cover 8; On the inwall of cylinder body, offer a straight line type guiding groove 17 that runs through whole cylinder body with the Boring mill line parallel, the guiding groove cross section is rectangular, the corresponding keyway of offering of periphery at piston, install sealing feather key 4 in the keyway with the guiding groove phase configuration, described sealing feather key is strip, be fixed in the piston keyway with sunk screw 5, offer seal groove 20 and dispose Stamping Steel Ribbon 15 in the middle of the upper end of sealing feather key, and form motive sealing between guiding groove end face and the side, many airtight grooves 19 are offered in both sides at the sealing feather key, and guiding groove forms motive sealing between the bi-side, be extended with the prominent beak 18 of a lengthening in the rear end of sealing feather key, prominent beak portion bottom be an arc surface, and cooperates the formation static seal between the piston outer wall.
Working medium of the present utility model can be liquid or gas.With liquid is example, pressured fluid enters from liquid in-out mouth 16, overcome load to piston 3 actings, piston 3 and sealing feather key 4 link together, the sealing feather key is limited in guiding groove 17 interior slips of cylinder body 14 inwalls, guiding piston 3 and piston rod 6 are made linear translational motion and are not rotated, and piston compressing liquid is discharged from liquid in-out mouth 13.When liquid in-out mouth 13 entrance pressure power liquid, another liquid in-out mouth 16 is discharged pressure release liquid, then forms the reverse linear motion.
Claims (6)
1. the telescopic piston cylinder of the antitorque commentaries on classics of guiding in a kind, include cylinder body (14) and be installed in the interior piston (3) of cylinder body, the one or both ends of piston are connected with piston rod (6), the other end of piston rod stretches out cylinder body vertically, it is characterized in that on the inwall of cylinder body, offering guiding groove (17) with the Boring mill line parallel, at the corresponding keyway of offering of periphery of piston, install sealing feather key (4) in the keyway with the guiding groove phase configuration.
2. the telescopic piston cylinder of the antitorque commentaries on classics of guiding in according to claim 1 is characterized in that described guiding groove (17) is for running through the straight line type guiding groove of whole cylinder body.
3. the telescopic piston cylinder of the antitorque commentaries on classics of guiding in according to claim 1 and 2 is characterized in that 1～2 of guiding groove laying, and disposes the sealing feather key of equal number on piston.
4. the telescopic piston cylinder of the antitorque commentaries on classics of guiding in according to claim 1 and 2, it is characterized in that described sealing feather key (4) is strip, be fixed in the piston keyway, offer seal groove and dispose Stamping Steel Ribbon (15) in the middle of the upper end of sealing feather key, airtight groove (19) is offered in both sides at the sealing feather key, and forms motive sealing between the guiding groove bi-side.
5. the telescopic piston cylinder of the antitorque commentaries on classics of guiding in according to claim 1 and 2, the two ends that it is characterized in that cylinder body are installed front cover (8) and rear end cover (1) respectively, rear end cover and cylinder body are connected as a body, and be provided with the liquid in-out/pore (16) that is connected with inner chamber of cylinder block, front cover and cylinder body front end are spun by screw thread, the joint is provided with seal ring (9), be opened in the bearing hole of piston rod phase configuration in the centre of front cover, the front and back of bearing hole are installed dust ring (12) respectively, guide ring (11) and seal ring (10) also offer the liquid in-out/pore (13) that is connected with inner chamber of cylinder block on front cover.
6. guiding antitorque commentaries on classics telescopic piston cylinder in according to claim 4 is characterized in that the rear end at the sealing feather key is extended with the prominent beak (18) of a lengthening, and prominent beak portion bottom be an arc surface, and cooperates the formation static seal between the piston outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720086645 CN201092987Y (en) | 2007-08-22 | 2007-08-22 | Inner guiding torsion-proof telescopic piston jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720086645 CN201092987Y (en) | 2007-08-22 | 2007-08-22 | Inner guiding torsion-proof telescopic piston jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092987Y true CN201092987Y (en) | 2008-07-30 |
Family
ID=39900953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720086645 Expired - Lifetime CN201092987Y (en) | 2007-08-22 | 2007-08-22 | Inner guiding torsion-proof telescopic piston jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092987Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954060A (en) * | 2012-11-22 | 2013-03-06 | 无锡鸿声铝业有限公司 | Air cylinder structure |
| CN105422543A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Internal guide oil cylinder |
| CN105422544A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Oil cylinder with internal guiding device |
| CN105443501A (en) * | 2015-12-25 | 2016-03-30 | 河海大学常州校区 | Built-in guide oil cylinder |
| CN105545865A (en) * | 2015-12-25 | 2016-05-04 | 河海大学常州校区 | Built-in guiding oil cylinder |
| CN105909786A (en) * | 2016-05-31 | 2016-08-31 | 贵州航天天马机电科技有限公司 | Anti-rotating piston kinematic pair barrel for large-size marine application device |
-
2007
- 2007-08-22 CN CN 200720086645 patent/CN201092987Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954060A (en) * | 2012-11-22 | 2013-03-06 | 无锡鸿声铝业有限公司 | Air cylinder structure |
| CN102954060B (en) * | 2012-11-22 | 2015-10-14 | 无锡鸿声铝业有限公司 | A kind of air cylinder structure |
| CN105422543A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Internal guide oil cylinder |
| CN105422544A (en) * | 2015-12-25 | 2016-03-23 | 河海大学常州校区 | Oil cylinder with internal guiding device |
| CN105443501A (en) * | 2015-12-25 | 2016-03-30 | 河海大学常州校区 | Built-in guide oil cylinder |
| CN105545865A (en) * | 2015-12-25 | 2016-05-04 | 河海大学常州校区 | Built-in guiding oil cylinder |
| CN105909786A (en) * | 2016-05-31 | 2016-08-31 | 贵州航天天马机电科技有限公司 | Anti-rotating piston kinematic pair barrel for large-size marine application device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |