CN204025211U - Ultrathin high speed hollow rotating oil hydraulic cylinder - Google Patents
Ultrathin high speed hollow rotating oil hydraulic cylinder Download PDFInfo
- Publication number
- CN204025211U CN204025211U CN201420298629.4U CN201420298629U CN204025211U CN 204025211 U CN204025211 U CN 204025211U CN 201420298629 U CN201420298629 U CN 201420298629U CN 204025211 U CN204025211 U CN 204025211U
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- cylinder sleeve
- shaft
- cup
- piston
- housing
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Abstract
The utility model belongs to mechanical clamp technical field, relates in particular to a kind of ultrathin high speed hollow rotating oil hydraulic cylinder.It has solved the technical problems such as existing poor practicability.Comprise piston shaft and the housing that is set in piston shaft one end, on piston shaft, be arranged with cylinder sleeve shaft-cup, and and cylinder sleeve shaft-cup is connected and and cylinder sleeve shaft-cup between form the cylinder sleeve of piston cavity, in piston cavity, be provided with some two ends hydraulic control valve, on piston shaft, be provided with and piston cavity can be separated into the annular piston of two chambers, on cylinder sleeve shaft-cup, be provided with housing, between housing and cylinder sleeve shaft-cup, be provided with the housing axle sleeve that is connected with housing and is rotatedly connected with cylinder sleeve shaft-cup, inwall two ends at housing axle sleeve are respectively equipped with rolling bearing, oil return end cap after being provided with on cylinder sleeve, oil return end cap before the other end of cylinder sleeve shaft-cup is provided with, at piston shaft, near the inwall of cylinder sleeve one end, be provided with the internal thread inwardly setting gradually from piston shaft end, annular positioning groove and circular orientation face.The utility model advantage is: practicability is good.
Description
Technical field
The utility model belongs to mechanical clamp technical field, relates in particular to a kind of ultrathin high speed hollow rotating oil hydraulic cylinder.
Background technique
Rotation oil hydraulic cylinder be a kind of be can through hole rotating hydraulic cylinder be can pass through workpiece in the middle of oil cylinder, this oil hydraulic cylinder can coordinate hollow hydraulic chuck to install and use, can process longer bar, also can carry out self-feeding processing by supporting autoloader, realize self-feeding, automatically processing, an operator can operate many chassis bed simultaneously, reduces recruitment cost.But existing its complex structure of rotation oil hydraulic cylinder and manufacture cost are higher, in addition, the poor and poor stability of sealing, working life short and difficult being applied, for this reason, people have carried out long-term exploration, have proposed solution miscellaneous.
For example, Chinese patent literature discloses a kind of power tool oil pressure cylinder structure, and [application number: 200920169872.5], comprising: one is installed in the cylinder body in power tool, and in this cylinder body, being formed with a section is the groove of wearing of runway shape; One revolves and is located at the pto＝power take-off of wearing in groove, and this pto＝power take-off is formed with respectively a profile groove at the two ends of its arbitrary diameter, and these two profile grooves are parallel to each other; And two be installed on pto＝power take-off and can do with respect to pto＝power take-off the blade of radial reciprocating motion, each blade is formed with a containing groove longitudinally towards the ora terminalis of wearing groove cell wall, in this containing groove, be sequentially equiped with at least one the first needle roller and one second needle roller, the outer rim of this second needle roller extend containing groove and with wear groove cell wall and contact;
Above-mentioned scheme has improved the smoothness of operation to a certain extent, but, also at least there is following defect in this scheme: structure is difficult for assembling and poor practicability, secondly, when in operation, particularly comprise the technical problems such as its poor stability that the technical problems such as and mechanical strength poor by sealing is low cause.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of design more rationally and the ultrathin high speed hollow rotating oil hydraulic cylinder of good stability.
For achieving the above object, the utility model has adopted following technical proposal: this ultrathin high speed hollow rotating oil hydraulic cylinder comprises tubular piston shaft and is set in the housing of piston shaft one end, on piston shaft, be arranged with cylinder sleeve shaft-cup, and by demountable structure and cylinder sleeve shaft-cup be connected and and cylinder sleeve shaft-cup between form the cylinder sleeve of piston cavity, in piston cavity, be provided with some two ends and be located in respectively the hydraulic control valve between cylinder sleeve shaft-cup and cylinder sleeve, on piston shaft, be provided with and piston cavity can be separated into the annular piston of two chambers and this annular piston and the piston shaft formula that is connected as a single entity, on annular piston, be provided with the through hole that the hydraulic control valve described in some confessions runs through one by one, described hydraulic control valve is passed in through hole and with through-hole wall and is connected by the first static seal structure, on cylinder sleeve shaft-cup, be provided with housing, between housing and cylinder sleeve shaft-cup, be provided with the housing axle sleeve that is connected with housing and is rotatedly connected with cylinder sleeve shaft-cup, at the inwall two ends of housing axle sleeve, be respectively equipped with interior circular orientation step and be arranged in each on circular orientation step and be placed on the rolling bearing in piston shaft outside, at cylinder sleeve shaft-cup, away from one end of cylinder sleeve, be provided with and be connected with cylinder sleeve and be set in the rear oil return end cap on piston shaft, at the other end of cylinder sleeve shaft-cup, be provided with and be set in the front oil return end cap that housing shaft puts, between piston shaft and cylinder sleeve shaft-cup, be provided with the second static seal structure, between piston shaft and cylinder sleeve, be provided with the 3rd static seal structure, described piston shaft is provided with near the inwall of cylinder sleeve one end the internal thread inwardly setting gradually from piston shaft end, annular positioning groove and circular orientation face, the other end outer wall at piston shaft is provided with outside thread, described housing outer wall is provided with between some strip bulges that axially arrange along it and adjacent two strip bulges and forms bar-shaped trough, described housing and strip bulge are connected as a single entity structure.Demountable structure comprises some attachment screws, and attachment screw can be arranged on cylinder sleeve shaft-cup, also can be arranged on cylinder sleeve.Internal thread, annular positioning groove, circular orientation face and outside thread can further improve dismounting efficiency.
In this application, piston shaft is connected with chuck by pull bar, thereby under the effect of oil pressure, piston shaft being moved completes the clamping of workpiece or unclamps, in addition, the first static seal structure, the structure that the second static seal structure and the 3rd static seal knot combine can improve the stability that piston shaft moves, secondly, the structure that is provided with strip bulge and housing can further improve mechanical strength, guarantee whole non-deformability, moreover, whole simple in structure and be easy to manufacture and install, guarantee production and assembly efficiency, further improved the application's practicability and extended working life.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, the first described static seal structure comprises and is arranged on the first interior circular groove of through-hole wall and is arranged on the first seal ring in the first interior circular groove.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, the second described static seal structure comprises and is arranged on the second circular groove of cylinder sleeve shaft-cup inwall and is arranged on the second seal ring in the second circular groove.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, the 3rd described static seal structure comprises and is arranged on the 3rd circular groove of inboard wall of cylinder liner and is arranged on the 3rd seal ring in the 3rd circular groove.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, described housing axle sleeve outer wall is provided with some annular seal grooves, in each annular seal groove, is respectively equipped with O-ring seal.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, described cylinder sleeve shaft-cup is provided with the annular mounting groove inserting in for front oil return end cap one end.
In above-mentioned ultrathin high speed hollow rotating oil hydraulic cylinder, described front oil return end cap is provided with the 4th circular groove and is arranged on the 4th seal ring in the 4th circular groove near one end of annular mounting groove.
Compared with prior art, the advantage of this ultrathin high speed hollow rotating oil hydraulic cylinder is: 1, design more rationally and be easy to manufacture and assemble, can guarantee assembling and manufacturing efficiency; 2, simple in structure and low cost of manufacture; 3, good stability and practical; 4, lightweight, energy high speed rotary; Through hole is large can use extensive bar; Power-off becomes pipe arrangement part to damage, included check valve (hydraulic control valve) self-locking, and safe and reliable can selection installed various gyro black assemblies in cylinder behind (cooling sensor, gyro black assembly).
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, piston shaft 1, annular piston 11, through hole 11a, the first seal ring 11b, internal thread 12, annular positioning groove 13, circular orientation face 14, outside thread 15, housing 2, strip bulge 21, cylinder sleeve shaft-cup 3, the second seal ring 31, annular mounting groove 32, cylinder sleeve 4, the 3rd seal ring 41, hydraulic control valve 5, housing axle sleeve 6, rolling bearing 6a, O-ring seal 61, rear oil return end cap 7, front oil return end cap 8, the 4th seal ring 8a, piston cavity a.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figure 1, this ultrathin high speed hollow rotating oil hydraulic cylinder comprises tubular piston shaft 1 and is set in the housing 2 of piston shaft 1 one end, on described piston shaft 1, be arranged with cylinder sleeve shaft-cup 3 and by demountable structure and cylinder sleeve shaft-cup 3 be connected and and cylinder sleeve shaft-cup 3 between form the cylinder sleeve 4 of piston cavity a, in piston cavity a, be provided with some two ends and be located in respectively the hydraulic control valve 5 between cylinder sleeve shaft-cup 3 and cylinder sleeve 4, these hydraulic control valve 5 hydraulic control valve 5 are prior art, set up safety coefficient when it can improve operation in the present embodiment;
On piston shaft 1, be provided with and piston cavity a can be separated into the annular piston 11 of two chambers and this annular piston 11 and piston shaft 1 formula that is connected as a single entity, on annular piston 11, be provided with the through hole 11a that the hydraulic control valve 5 described in some confessions runs through one by one, described hydraulic control valve 5 is passed in through hole 11a and with through hole 11a inwall and is connected by the first static seal structure, concrete, first static seal structure here comprises and is arranged on the first interior circular groove of through hole 11a inwall and is arranged on the first seal ring 11b in the first interior circular groove;
On cylinder sleeve shaft-cup 3, be provided with housing 2, between housing 2 and cylinder sleeve shaft-cup 3, be provided with the housing axle sleeve 6 that is connected with housing 2 and is rotatedly connected with cylinder sleeve shaft-cup 3, at the inwall two ends of housing axle sleeve 6, be respectively equipped with interior circular orientation step and be arranged in each on circular orientation step and be placed on the rolling bearing 6a in piston shaft 1 outside, at cylinder sleeve shaft-cup 3, away from one end of cylinder sleeve 4, be provided with and be connected with cylinder sleeve 4 and be set in the rear oil return end cap 7 on piston shaft 1, the other end at cylinder sleeve shaft-cup 3 is provided with the front oil return end cap 8 being set on housing axle sleeve 6, between piston shaft 1 and cylinder sleeve shaft-cup 3, be provided with the second static seal structure, concrete, second static seal structure here comprises and is arranged on the second circular groove of cylinder sleeve shaft-cup 3 inwalls and is arranged on the second seal ring 31 in the second circular groove,
Between piston shaft 1 and cylinder sleeve 4, be provided with the 3rd static seal structure, optimized project, the 3rd static seal structure comprises and is arranged on the 3rd circular groove of cylinder sleeve 4 inwalls and is arranged on the 3rd seal ring 41 in the 3rd circular groove;
For the ease of dismounting, at piston shaft 1, near the inwall of cylinder sleeve 4 one end, be provided with internal thread 12, annular positioning groove 13 and the circular orientation face 14 inwardly setting gradually from piston shaft 1 end, the other end outer wall at piston shaft 1 is provided with outside thread 15, in order to improve mechanical strength, at housing 2 outer walls, be provided with between some strip bulges 21 that axially arrange along it and adjacent two strip bulges 21 and form bar-shaped trough, described housing 2 and strip bulge 21 are connected as a single entity structure.
Optimized project, is provided with some annular seal grooves at housing axle sleeve 6 outer walls of the present embodiment, is respectively equipped with O-ring seal 61 in each annular seal groove.Secondly, be provided with the annular mounting groove 32 inserting in for front oil return end cap 8 one end on cylinder sleeve shaft-cup 3, further, the one end at front oil return end cap 8 near annular mounting groove 32 is provided with the 4th circular groove and is arranged on the 4th seal ring 8a in the 4th circular groove.
In the present embodiment, internal thread 12, annular positioning groove 13, circular orientation face 14 and outside thread 15 can further improve dismounting efficiency, secondly, when in operation, piston shaft is connected with chuck by pull bar, thereby under the effect of oil pressure, piston shaft being moved completes the clamping of workpiece or unclamps, in addition, the first static seal structure, the structure that the second static seal structure and the 3rd static seal knot combine can improve the stability that piston shaft moves, secondly, the structure that is provided with strip bulge and housing can further improve mechanical strength, guarantee whole non-deformability, moreover, whole simple in structure and be easy to manufacture and install, guarantee production and assembly efficiency, further improved the application's practicability and extended working life.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as piston shaft 1, annular piston 11, through hole 11a, the first seal ring 11b, internal thread 12, annular positioning groove 13, circular orientation face 14, outside thread 15, housing 2, strip bulge 21, cylinder sleeve shaft-cup 3, the second seal ring 31, annular mounting groove 32, cylinder sleeve 4, the 3rd seal ring 41, hydraulic control valve 5, housing axle sleeve 6, rolling bearing 6a, O-ring seal 61, rear oil return end cap 7, front oil return end cap 8, the 4th seal ring 8a, piston cavity a herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. a ultrathin high speed hollow rotating oil hydraulic cylinder, comprise tubular piston shaft (1) and be set in the housing (2) of piston shaft (1) one end, it is characterized in that, on described piston shaft (1), be arranged with cylinder sleeve shaft-cup (3), and by demountable structure and cylinder sleeve shaft-cup (3) be connected and and cylinder sleeve shaft-cup (3) between form the cylinder sleeve (4) of piston cavity (a), in piston cavity (a), be provided with some two ends and be located in respectively the hydraulic control valve (5) between cylinder sleeve shaft-cup (3) and cylinder sleeve (4), on piston shaft (1), be provided with and piston cavity (a) can be separated into the annular piston (11) of two chambers and this annular piston (11) and piston shaft (1) formula that is connected as a single entity, on annular piston (11), be provided with the through hole (11a) that the hydraulic control valve (5) described in some confessions runs through one by one, described hydraulic control valve (5) is passed in through hole (11a) and with through hole (11a) inwall and is connected by the first static seal structure, on cylinder sleeve shaft-cup (3), be provided with housing (2), between housing (2) and cylinder sleeve shaft-cup (3), be provided with the housing axle sleeve (6) that is connected with housing (2) and is rotatedly connected with cylinder sleeve shaft-cup (3), at the inwall two ends of housing axle sleeve (6), be respectively equipped with interior circular orientation step and be arranged on each on circular orientation step and be placed on the rolling bearing (6a) outside piston shaft (1), at cylinder sleeve shaft-cup (3), away from one end of cylinder sleeve (4), be provided with and be connected with cylinder sleeve (4) and be set in the rear oil return end cap (7) on piston shaft (1), the other end at cylinder sleeve shaft-cup (3) is provided with the front oil return end cap (8) being set on housing axle sleeve (6), between piston shaft (1) and cylinder sleeve shaft-cup (3), be provided with the second static seal structure, between piston shaft (1) and cylinder sleeve (4), be provided with the 3rd static seal structure, described piston shaft (1) is provided with near the inwall of cylinder sleeve (4) one end the internal thread (12) inwardly setting gradually from piston shaft (1) end, annular positioning groove (13) and circular orientation face (14), the other end outer wall at piston shaft (1) is provided with outside thread (15), described housing (2) outer wall is provided with between some strip bulges (21) that axially arrange along it and adjacent two strip bulges (21) and forms bar-shaped trough, described housing (2) and strip bulge (21) are connected as a single entity structure.
2. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 1, is characterized in that, the first described static seal structure comprises and is arranged on the first interior circular groove of through hole (11a) inwall and is arranged on the first seal ring (11b) in the first interior circular groove.
3. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 1 and 2, is characterized in that, the second described static seal structure comprises and is arranged on the second circular groove of cylinder sleeve shaft-cup (3) inwall and is arranged on the second seal ring (31) in the second circular groove.
4. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 3, is characterized in that, the 3rd described static seal structure comprises and is arranged on the 3rd circular groove of cylinder sleeve (4) inwall and is arranged on the 3rd seal ring (41) in the 3rd circular groove.
5. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 1 and 2, is characterized in that, described housing axle sleeve (6) outer wall is provided with some annular seal grooves, is respectively equipped with O-ring seal (61) in each annular seal groove.
6. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 1 and 2, is characterized in that, described cylinder sleeve shaft-cup (3) is provided with the annular mounting groove (32) inserting in for front oil return end cap (8) one end.
7. ultrathin high speed hollow rotating oil hydraulic cylinder according to claim 6, is characterized in that, described front oil return end cap (8) is provided with the 4th circular groove and is arranged on the 4th seal ring (8a) in the 4th circular groove near one end of annular mounting groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298629.4U CN204025211U (en) | 2014-06-06 | 2014-06-06 | Ultrathin high speed hollow rotating oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298629.4U CN204025211U (en) | 2014-06-06 | 2014-06-06 | Ultrathin high speed hollow rotating oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025211U true CN204025211U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298629.4U Expired - Fee Related CN204025211U (en) | 2014-06-06 | 2014-06-06 | Ultrathin high speed hollow rotating oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942280A (en) * | 2017-05-17 | 2018-12-07 | 吴炫隆 | Oil-pressure clamping head with leak-stopping oil ring |
-
2014
- 2014-06-06 CN CN201420298629.4U patent/CN204025211U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942280A (en) * | 2017-05-17 | 2018-12-07 | 吴炫隆 | Oil-pressure clamping head with leak-stopping oil ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |