CN211144974U - Telescopic rotary hydraulic cylinder - Google Patents
Telescopic rotary hydraulic cylinder Download PDFInfo
- Publication number
- CN211144974U CN211144974U CN201922263210.0U CN201922263210U CN211144974U CN 211144974 U CN211144974 U CN 211144974U CN 201922263210 U CN201922263210 U CN 201922263210U CN 211144974 U CN211144974 U CN 211144974U
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- cylinder
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- rotary hydraulic
- cylinder barrel
- hydraulic cylinder
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Abstract
The utility model discloses a telescopic rotary hydraulic cylinder, which comprises a base, a cylinder barrel and a cylinder rod, wherein the cylinder barrel is provided with an oil outlet and an oil inlet; the base is fixedly connected to the bottom of the cylinder barrel, and the cylinder rod is connected with the cylinder barrel in a sliding manner; the cylinder barrel is internally provided with a bearing seat in a sliding manner, the cylinder rod is rotatably arranged on the bearing seat, the cylinder rod is fixedly connected with a screw rod, the cylinder barrel is provided with a rotating cavity, steps are distributed on the rotating cavity, threads are distributed on the steps, and the steps are in rotating fit with the screw rod. By fixedly connecting the screw rod to the cylinder rod, when the bearing platform supports the cylinder rod to move up and down in the cylinder barrel, the screw rod also moves up and down along with the cylinder rod, and then the screw rod rotates under the matching of threads on the step, so that the cylinder is further driven to rotate while ascending or descending.
Description
Technical Field
The utility model relates to a hydraulic pressure field specifically is a flexible rotation type pneumatic cylinder.
Background
The hydraulic cylinder has reliable operation stability and easy realization of stepless speed regulation, and is widely applied to the modern industrial field.
At present, the existing hydraulic cylinder can only perform linear motion or rotary motion independently, and then in a special environment where linear motion and rotary motion are used simultaneously, the rotary hydraulic cylinder and the linear hydraulic cylinder need to be used in combination, so that the defect of function singleness of the hydraulic cylinder is shown.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible rotation type pneumatic cylinder to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a telescopic rotary hydraulic cylinder comprises a base, a cylinder barrel and a cylinder rod, wherein an oil outlet and an oil inlet are formed in the cylinder barrel, the base is fixedly connected to the bottom of the cylinder barrel, and the cylinder rod is connected with the cylinder barrel in a sliding mode; the cylinder barrel is internally provided with a bearing seat in a sliding manner, the cylinder rod is rotatably arranged on the bearing seat, the cylinder rod is fixedly connected with a screw rod, the cylinder barrel is provided with a rotating cavity, steps are distributed on the rotating cavity, threads are distributed on the steps, and the steps are in rotating fit with the screw rod.
As a further aspect of the present invention: balls are arranged between the cylinder rod and the bearing seat; a second lining is arranged between the bearing seat and the screw rod.
As a further aspect of the present invention: a first lining is arranged between the cylinder rod and the cylinder barrel.
As a further aspect of the present invention: and a sealing ring is arranged on the outer side of the bearing seat.
As a further aspect of the present invention: the sealing ring is made of rubber.
As a further aspect of the present invention: the bearing seat is axially provided with a normal sealing ring, and the cross section of the normal sealing ring is isosceles trapezoid.
Compared with the prior art, the beneficial effects of the utility model are that: through fixedly connecting the screw rod on the cylinder rod, when the plummer moves up and down in the cylinder barrel in the supporting cylinder rod, the screw rod also moves up and down along with the cylinder rod, and then under the screw-thread fit on the step, the screw rod rotates, and further drives the cylinder to rotate while ascending or descending, thereby avoiding using the combination of rotary and linear hydraulic cylinders in a special environment in which the straight line and the rotation simultaneously appear.
Drawings
Fig. 1 is a schematic structural view of a telescopic rotary hydraulic cylinder.
Fig. 2 is an enlarged structural schematic diagram of a view a in the telescopic rotary hydraulic cylinder.
Fig. 3 is a schematic structural view of a bearing seat in the telescopic rotary hydraulic cylinder.
In the figure: 1-base, 2-cylinder barrel, 3-cylinder rod, 4-first bush, 5-oil outlet, 6-oil inlet, 7-bearing seat, 8-sealing ring, 9-normal sealing ring, 10-ball, 11-second bush, 12-rotating cavity, 13-step and 14-screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1-3, a telescopic rotary hydraulic cylinder comprises a base 1, a cylinder barrel 2 and a cylinder rod 3, wherein the cylinder barrel 2 is provided with an oil outlet 5 and an oil inlet 6, and the oil inlet 6 and the oil outlet 5 are used for oil path delivery of the hydraulic cylinder; the base 1 is fixedly connected to the bottom of the cylinder barrel 2, and the cylinder rod 3 is connected with the cylinder barrel 2 in a sliding manner; a bearing seat 7 is slidably installed in the cylinder barrel 2, the cylinder rod 3 is rotatably installed on the bearing seat 7, a screw 14 is fixedly connected to the cylinder rod 3, a rotating cavity 12 is formed in the cylinder barrel 2, a step 13 is distributed on the rotating cavity 12, threads are distributed on the step 13, and the step 13 is rotatably matched with the screw 14; when the bearing table 7 supports the cylinder rod 3 to move up and down in the cylinder barrel 2, the screw 14 also moves up and down along with the cylinder rod 3, and the screw 14 rotates under the matching of the threads on the step 13, so that the cylinder 3 is further driven to rotate while ascending or descending.
Further, in order to improve the rotation effect between the cylinder rod 3 and the bearing seat 7, balls 10 are distributed and mounted between the cylinder rod 3 and the bearing seat 7, and the specific number of the balls 10 is not limited; a second bush 11 is arranged between the bearing seat 7 and the screw 14, and the second bush 11 can reduce the friction force between the screw 14 and the bearing seat 7; further, the balls 10 do not affect the bearing effect of the cylinder rod 3 while improving the rotation effect between the cylinder rod 3 and the bearing seat 7.
Further, in order to reduce the rotation friction force between the cylinder rod 3 and the cylinder barrel 2, a first bushing 4 is arranged between the cylinder rod 3 and the cylinder barrel 2, and the first bushing 4 is used for slowing down the cylinder rod 3 and the cylinder barrel 2 and improving the sealing effect between the cylinder rod 3 and the cylinder barrel 2.
Furthermore, the outer side of the bearing seat 7 is provided with a sealing ring 8, the specific number of the sealing rings 8 is not limited, the sealing ring 8 can effectively separate the oil inlet 6 from the oil outlet 5, and meanwhile, the sealing ring 8 can further reduce the friction force between the bearing seat 7 and the inner wall of the cylinder barrel 2.
Furthermore, the specific material of the sealing ring 8 is not limited, in this embodiment, preferably, the sealing ring 8 is made of rubber, and the rubber has good physical properties, so that the sealing ring is not easily corroded by oil, thereby saving energy and prolonging the service life of the device.
The utility model discloses a theory of operation is: when the bearing table 7 supports the cylinder rod 3 to move up and down in the cylinder barrel 2, the screw 14 also moves up and down along with the cylinder rod 3, and then the screw 14 rotates under the matching of the threads on the step 13, so that the cylinder 3 is further driven to rotate while ascending or descending.
Example two
In order to further improve the actual use effect of the telescopic rotary hydraulic cylinder, the embodiment is improved on the basis of the first embodiment, and the improvement is that a normal sealing ring 9 is arranged in the axial direction of the bearing seat 7, the cross section of the normal sealing ring 9 is in an isosceles trapezoid shape, the contact area between the bearing seat 7 and the inner wall of the cylinder barrel 2 is increased on the normal sealing ring 9, and the effect of oil sealing is further improved; through setting up normal direction sealing washer 9's cross section into isosceles trapezoid, further improvement this device's bearing capacity.
The working principle of the embodiment is as follows: the normal sealing ring 9 increases the contact area between the bearing seat 7 and the inner wall of the cylinder barrel 2, and further improves the oil sealing effect; through setting up normal direction sealing washer 9's cross section into isosceles trapezoid, further improvement this device's bearing capacity.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A telescopic rotary hydraulic cylinder comprises a base (1), a cylinder barrel (2) and a cylinder rod (3), wherein an oil outlet (5) and an oil inlet (6) are formed in the cylinder barrel (2); base (1) fixed connection in the bottom of cylinder (2), jar pole (3) and cylinder (2) sliding connection, its characterized in that, cylinder (2) slidable mounting bear seat (7), jar pole (3) rotate and install on bearing seat (7), jar pole (3) on fixedly connected with screw rod (14), cylinder (2) on seted up and rotated chamber (12), rotation chamber (12) on laid step (13), step (13) on laid the screw thread, step (13) and screw rod (14) normal running fit.
2. A telescopic rotary hydraulic cylinder according to claim 1, characterized in that balls (10) are arranged between the cylinder rod (3) and the carrying seat (7); a second lining (11) is arranged between the bearing seat (7) and the screw (14).
3. A telescopic rotary hydraulic cylinder according to claim 2, characterised in that a first bushing (4) is arranged between the cylinder rod (3) and the cylinder barrel (2).
4. A telescopic rotary hydraulic cylinder according to claim 3, in which the outer side of the carrier (7) is provided with a sealing ring (8).
5. A telescopic, rotary hydraulic cylinder according to claim 4, in which the said sealing ring (8) is made of rubber.
6. A telescopic rotary hydraulic cylinder according to claim 1, in which the said carrier (7) is provided with a normal seal (9) in the axial direction, the said normal seal (9) having an isosceles trapezoid cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263210.0U CN211144974U (en) | 2019-12-14 | 2019-12-14 | Telescopic rotary hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263210.0U CN211144974U (en) | 2019-12-14 | 2019-12-14 | Telescopic rotary hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211144974U true CN211144974U (en) | 2020-07-31 |
Family
ID=71754641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922263210.0U Active CN211144974U (en) | 2019-12-14 | 2019-12-14 | Telescopic rotary hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144974U (en) |
-
2019
- 2019-12-14 CN CN201922263210.0U patent/CN211144974U/en active Active
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