CN201963634U - Two-degree-of-freedom hydraulic oil cylinder - Google Patents
Two-degree-of-freedom hydraulic oil cylinder Download PDFInfo
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- CN201963634U CN201963634U CN201120054607XU CN201120054607U CN201963634U CN 201963634 U CN201963634 U CN 201963634U CN 201120054607X U CN201120054607X U CN 201120054607XU CN 201120054607 U CN201120054607 U CN 201120054607U CN 201963634 U CN201963634 U CN 201963634U
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Abstract
The utility model discloses a two-degree-of-freedom hydraulic oil cylinder, which comprises a front cylinder head, a back cylinder head, a cylinder barrel, a piston rod, a piston, a piston sealing component, a piston rod sealing component, a rotating shaft and a rotating arm, wherein one end of the piston rod is fixedly connected with one end of the piston, and the other end of the piston rod penetrates through the front cylinder head; one end of the piston rod is provided with an axial blind hole, and a spiral structure is arranged on the outer circumferential surface of one end of the rotating shaft; the end head of the other end of the piston extends outwards out of the extending end of the piston, and the shape of an inner hole of the extending end of the piston is matched with the shape of the spiral structure at one end of the rotating shaft; one end of the rotating shaft sequentially extends into the inner hole of the extending end of the piston and the axial blind hole of the piston rod, and the other end of the rotating shaft penetrates through the back cylinder head; and the lower end of the rotating arm is fixedly connected with the end head of the other end of the rotating shaft. The two-degree-of-freedom hydraulic oil cylinder has a compact structure and high reliability, and is flexible to move. One degree of freedom that the piston rod of the traditional hydraulic oil cylinder only makes reciprocating movement is expanded into two degrees of freedom that the piston rod makes both reciprocating movement and rotation, accordingly the working scope of the hydraulic oil cylinder is enlarged, and the application functions of the oil cylinder are improved.
Description
Technical field
The utility model relates to a kind of hydraulic jack, especially a kind ofly can export straight reciprocating motion, can export the hydraulic jack that surpasses one degree of freedom of rotation motion simultaneously, belongs to hydraulic actuator spare technical field.
Background technique
The piston type double-acting hydraulic jack is used very extensive at industrial field, as engineering machinery, metallurgical machinery, metal forming machinery, injection machine, aircraft, boats and ships etc., pot type piston formula double-act-ing hydraulic J-Horner has only the one degree of freedom of straight reciprocating motion.The patent No. is 89105415.4 Chinese utility application prospectus " hydraulic rotating power cylinder ", a kind of hydraulic rotating power cylinder is disclosed, become the relative cylinder barrel wall of existing rotating power cylinder piston and rotate to be the relative piston inner hole rotation of piston rod, reduced the relative linear velocity of kinematic pair, improved abrasive conditions, prolonged working life, but this hydraulic jack still has only one degree of freedom.
The patent No. is 200410069392.3 Chinese utility application prospectus " a kind of digital fluid cylinder of two-stage screw internal feedback ", it is shifted from the selector valve of establishing by the digitized signal control oil cylinder to stepper motor, thereby driven plunger moves, when piston moves, give stepper motor by deuterostrophies with signal feed back, realize mobile control hydraulic jack.Be provided with deuterostrophies mechanism and selector valve in the cylinder body of this utility model application, complex structure is made, is assembled difficulty, also needs by stepper motor is carried out Digital Control, and the control difficulty is big, and reliability is relatively poor, and has only the power output of one degree of freedom.
For the device that need move simultaneously and rotate, commutation rudder control oil cylinder as marine propuision system, this oil cylinder is a kind of single-piston rod double-act-ing hydraulic J-Horner, because piston rod in the work of ship after-peak tank outdoor, therefore can not directly be gathered motor message by piston rod cylinder action is controlled, if employing double piston-rod, be subjected to the spatial position restriction again, and magnetic built-in formula cylinder displacement, though can gather motor message, but mechanism's complexity, antijamming capability is relatively poor.
In sum, existing single-piston rod double-act-ing hydraulic J-Horner only has one degree of freedom, and using scope is limited; Simultaneously, under specific environment, the single-piston rod double-act-ing hydraulic J-Horner is gathered relatively difficulty of motor message.
Summary of the invention
The purpose of this utility model provides a kind of two degrees of freedom, the single-piston rod double-act-ing hydraulic J-Horner, when this hydraulic jack is worked, the piston rod of oil hydraulic cylinder one end can be reciprocating, the rotating shaft of the other end of oil hydraulic cylinder can be exported the signal that rotatablely moves that adapts with the piston rod displacement automatically, thereby has solved the problem of the signals collecting difficulty of oil hydraulic cylinder.
The utility model is achieved by the following technical programs:
A kind of two degrees of freedom hydraulic jack, comprise front end housing, cylinder barrel, piston rod, piston, back cylinder cover, rod seal assembly, piston seal assembly, rotating shaft, pivoted arm, fixedly connected with front end housing, back cylinder cover respectively in described cylinder barrel two ends, and by the sealing of the Sealing between front end housing, back cylinder cover and cylinder barrel two ends cylinder barrel; Described piston one end is fixedlyed connected with piston rod one end, and the piston rod the other end passes front end housing, and described rod seal assembly is arranged in the front end housing, seals by the rod seal assembly between piston rod cylindrical and the front end housing endoporus; The piston seal assembly is arranged on the outside piston.Described piston rod one end has axial blind hole, the outer circumferential face of rotating shaft one end is provided with helix structure, the other end termination of described piston extends outward the piston extending end, the interior hole shape of described piston extending end and rotating shaft one end helix structure shape are coincide, rotating shaft one end stretches in the axial blind hole of piston extending end endoporus, piston rod in turn, the rotating shaft the other end passes back cylinder cover, by the sealing of rotating shaft sealing assembly, fixedly connected with rotating shaft the other end termination in described pivoted arm lower end between rotating shaft cylindrical and the back cylinder cover endoporus.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid two degrees of freedom hydraulic jack, wherein said helix structure are the single helical groove of non-self-locking; Or be the double spiral groove of non-self-locking; Or be the single-screw plane of non-self-locking.
Aforesaid two degrees of freedom hydraulic jack, wherein said rotating shaft axially is positioned on the back cylinder cover by friction plate and shaft block ring respectively.
Aforesaid two degrees of freedom hydraulic jack, wherein said piston extending end endoporus also is provided with the axial pass trough that communicates with axial blind hole, and described axial pass trough is arranged on the helix structure outside of rotating shaft; The rotation angle of described pivoted arm is ± 50 °～± 65 °.
The utility model compact structure, motion is flexible, the reliability height.Only there is reciprocating one degree of freedom to expand to the two degrees of freedom that existing to-and-fro motion has rotation again existing hydraulic jack, enriched the operating range of hydraulic jack, improved the application function of oil cylinder.Single-piston rod of the present utility model and rotating shaft are exported simultaneously and are moved and rotate two degree-of-freedom motion, the stroke that it moves and the corner of rotation can match each other, moving with rotating shaft of piston rod is linear, can preestablish the relation of two degree-of-freedom motion as requested.Two degree-of-freedom motion all can be used as power output, simultaneously, also can be with the one degree of freedom motion as power output, another is aforementioned one degree of freedom motion output detection signal.In addition, fix, then can make piston rod in the process that moves, rotate simultaneously if will rotate the rotating shaft and the cylinder cover of end.Thereby realized that same piston rod exports the compound motion that moves and rotate simultaneously.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1, i.e. the utility model embodiment one A-A sectional view;
Fig. 3 is the A-A sectional view of Fig. 1, i.e. the utility model embodiment two A-A sectional view;
Fig. 4 is the A-A sectional view of Fig. 1, i.e. the utility model embodiment three A-A sectional view;
Fig. 5 is the utility model embodiment one turning shaft structure figure;
Fig. 6 is the utility model embodiment two turning shaft structure figure;
Fig. 7 is the utility model embodiment three turning shaft structure figure.
Fig. 8 is the left view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises front end housing 1, cylinder barrel 2, piston rod 3, piston 4, back cylinder cover 5, rod seal assembly 6, piston seal assembly 7, rotating shaft 8, pivoted arm 9, rotating shaft sealing assembly 10, cylinder barrel 2 two ends respectively with front end housing 1, back cylinder cover 5 fixedly connected by fastening screw 11 in aggregates, between the end face at front end housing 1, back cylinder cover 5 and cylinder barrel 2 two ends respectively setting-in be used to seal the O-ring seals 12 of cylinder barrel 2.Piston 4 one ends are fixedlyed connected by screw thread with piston rod 3 one ends, and fixing with back Cock screw 41; Piston rod 3 the other ends pass front end housing 1, between regulating 31, piston rod 3 the other end terminations and piston rod adopt to be threaded, and fixing with preceding Cock screw 32, can prevent piston rod adjusting 31 rotation.Seal by the rod seal assembly 6 that is arranged in the front end housing 1 between piston rod 3 cylindricals and front end housing 1 endoporus.Piston seal assembly 7 is arranged on piston 4 cylindricals, and cylinder barrel 2 inner chambers are divided into not connected rod chamber and rodless cavity.Piston rod 3 one ends have axial blind hole 33, the outer circumferential face of rotating shaft 8 one ends is provided with helix structure, the other end termination of piston 3 extends outward piston extending end 34, described piston extending end endoporus 341 shapes and rotating shaft 8 one end helix structure shapes are coincide, rotating shaft 8 one ends stretch in the axial blind hole 33 of piston extending end endoporus 341, piston rod in turn, rotating shaft 8 the other ends pass back cylinder cover 5, by 10 sealings of rotating shaft sealing assembly, fixedly connected by pivoted arm Cock screw 91 with rotating shaft 8 the other end terminations in pivoted arm 9 lower ends between rotating shaft 8 cylindricals and back cylinder cover 5 endoporus.
The outer circumferential face of rotating shaft 8 one ends is provided with helix structure, and the helix structure figure of the utility model embodiment one rotating shaft 8 is the single helical groove 81A of non-self-locking as shown in Figure 5.As shown in Figure 2, the utility model embodiment one the rotating shaft 8 one end single helical groove 81A and the endoporus 341A shape of piston extending end 34 are coincide, the piston extending end endoporus 341A outside also is provided with the axial pass trough 341A1 that communicates with axial blind hole 33, when piston 4 right laterals, can make axial blind hole 33 suck hydraulic oil from axial pass trough 341A1; When piston 4 left lateral, can make axial blind hole 33 discharge hydraulic oil from axial pass trough 341A1.
The helix structure figure of the utility model embodiment two rotating shaft 8 is the double spiral groove 81B of non-self-locking as shown in Figure 6.As shown in Figure 3, rotating shaft 8 one end double spiral groove 81B and piston extending end endoporus 341B shape are coincide, and piston extending end endoporus 341A two sides are respectively equipped with the axial pass trough 341B1 that communicates with axial blind hole 33, and its effect is identical with embodiment one.Double spiral groove 81B has improved the stress of rotating shaft 8, and the moment of rotation that it is subjected to is more even.
The utility model embodiment three structural drawing is the single-screw plane 81C of non-self-locking as shown in Figure 7; As shown in Figure 4.The endoporus 341C shape of rotating shaft 8 one end single-screw plane 81C and piston extending end 34 is coincide, and piston extending end endoporus 341C two sides are respectively equipped with the axial pass trough 341C1 that communicates with axial blind hole 33, and its effect is identical with embodiment one.
Rotating shaft 8 axially is positioned on the back cylinder cover 5 by friction plate 101 and the shaft block ring 103 that is positioned at back cylinder cover 5 outsides respectively.Friction plate 101 is two end-face friction sheets, and its effect is equivalent to thrust-bearing, the frictional force when reducing rotating shaft 8 rotations; Back cylinder cover 5 outsides are equipped with and are adjusted pad 102 and shaft block ring 103, realize the axially locating of rotating shaft 8.
When hydraulic oil when back hydraulic fluid port 51 enters left oil pocket of the present utility model, promoting piston 4 moves right, piston rod regulate 31 and the constraint of external agency under, piston 4 is together with piston rod 3 moving linearlies, simultaneously, because the spiral chute of rotating shaft 8 and the interior hole shape of piston extending end 34 coincide, so, when piston 4 moves to right, rotating shaft 8 is rotated thereupon, its sense of rotation and rotation angle can preestablish, as long as guarantee the friction angle of the helix angle of rotating shaft 8 greater than rotating shaft 8 and piston 4, rotating shaft 8 just can forward and reversely be rotated.In addition, piston rod 3 can also rotate when moving if desired, needs to remove piston rod and regulates an external constraint of 311, and is simultaneously that rotating shaft 8 is fixing with back cylinder cover 5, avoids its rotation to get final product.Otherwise when hydraulic oil the past hydraulic fluid port 13 entered cylinder barrel right side oil pocket, piston 4 was moved to the left, and rotating shaft 8 is also rotated thereupon, the direction of rotation when its sense of rotation and piston 4 move to right.
As shown in Figure 8, rotating shaft 8 drives pivoted arm 9 and rotates when rotating, and the rotation angle of pivoted arm 9 is ± 50 °～± 65 °, and present embodiment is ± 60 °.The slotted eye 92 of pivoted arm 9 by its upper end drives the rod member that is attached thereto and driving torque is become thrust transfers out and satisfy specific usage requirement.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (7)
1. two degrees of freedom hydraulic jack, comprise front end housing, cylinder barrel, piston rod, piston, back cylinder cover, rod seal assembly, piston seal assembly, fixedly connected with front end housing, back cylinder cover respectively in the cylinder barrel two ends, and by the sealing of the Sealing between front end housing, back cylinder cover and cylinder barrel two ends cylinder barrel; Described piston one end is fixedlyed connected with piston rod one end, and the piston rod the other end passes front end housing, and described rod seal assembly is arranged in the front end housing, seals by the rod seal assembly between piston rod cylindrical and the front end housing endoporus; The piston seal assembly is arranged on the outside piston; It is characterized in that: also comprise rotating shaft, pivoted arm, described piston rod one end has axial blind hole, the outer circumferential face of rotating shaft one end is provided with helix structure, the other end termination of described piston extends outward the piston extending end, the interior hole shape of described piston extending end and rotating shaft one end helix structure shape are coincide, rotating shaft one end stretches in the axial blind hole of piston extending end endoporus, piston rod in turn, the rotating shaft the other end passes back cylinder cover, by the sealing of rotating shaft sealing assembly, fixedly connected with rotating shaft the other end termination in described pivoted arm lower end between rotating shaft cylindrical and the back cylinder cover endoporus.
2. two degrees of freedom hydraulic jack as claimed in claim 1 is characterized in that: described helix structure is the single helical groove of non-self-locking.
3. two degrees of freedom hydraulic jack as claimed in claim 1 is characterized in that: described helix structure is the double spiral groove of non-self-locking.
4. two degrees of freedom hydraulic jack as claimed in claim 1 is characterized in that: described helix structure is the single-screw plane of non-self-locking.
5. two degrees of freedom hydraulic jack as claimed in claim 1 is characterized in that: described rotating shaft axially is positioned on the back cylinder cover by friction plate and shaft block ring respectively.
6. as each described two degrees of freedom hydraulic jack of claim 1 to 4, it is characterized in that: described piston extending end endoporus also is provided with the axial pass trough that communicates with the piston rod axial blind hole, and described axial pass trough is arranged on the helix structure outside of rotating shaft.
7. two degrees of freedom hydraulic jack as claimed in claim 1 is characterized in that: the rotation angle of described pivoted arm is ± 50 °～± 65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120054607XU CN201963634U (en) | 2011-03-04 | 2011-03-04 | Two-degree-of-freedom hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120054607XU CN201963634U (en) | 2011-03-04 | 2011-03-04 | Two-degree-of-freedom hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963634U true CN201963634U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120054607XU Expired - Fee Related CN201963634U (en) | 2011-03-04 | 2011-03-04 | Two-degree-of-freedom hydraulic oil cylinder |
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| CN (1) | CN201963634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094869A (en) * | 2011-03-04 | 2011-06-15 | 江苏科技大学 | Two-degree-of-freedom hydraulic oil cylinder |
| CN105252464A (en) * | 2015-11-28 | 2016-01-20 | 渝北区千里马模具加工厂 | Device for manufacturing license plate illuminating lampshade |
| WO2017113606A1 (en) * | 2015-12-30 | 2017-07-06 | 山东科技大学 | Integrated hydraulic cylinder having telescoping function and swinging function and application thereof |
| CN107882811A (en) * | 2017-12-30 | 2018-04-06 | 无锡蓝力智能装备有限公司 | A kind of electric servo high precision oil cylinder |
-
2011
- 2011-03-04 CN CN201120054607XU patent/CN201963634U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094869A (en) * | 2011-03-04 | 2011-06-15 | 江苏科技大学 | Two-degree-of-freedom hydraulic oil cylinder |
| CN105252464A (en) * | 2015-11-28 | 2016-01-20 | 渝北区千里马模具加工厂 | Device for manufacturing license plate illuminating lampshade |
| WO2017113606A1 (en) * | 2015-12-30 | 2017-07-06 | 山东科技大学 | Integrated hydraulic cylinder having telescoping function and swinging function and application thereof |
| CN107882811A (en) * | 2017-12-30 | 2018-04-06 | 无锡蓝力智能装备有限公司 | A kind of electric servo high precision oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang four ocean Diesel Engine Manufacturing Co., Ltd. Assignor: Jiangsu University of Science and Technology Contract record no.: 2012320000108 Denomination of utility model: Two-degree-of-freedom hydraulic oil cylinder Granted publication date: 20110907 License type: Exclusive License Record date: 20120227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20180304 |