CN210343918U - Anti-rotation device for piston of servo oil cylinder - Google Patents
Anti-rotation device for piston of servo oil cylinder Download PDFInfo
- Publication number
- CN210343918U CN210343918U CN201920717116.5U CN201920717116U CN210343918U CN 210343918 U CN210343918 U CN 210343918U CN 201920717116 U CN201920717116 U CN 201920717116U CN 210343918 U CN210343918 U CN 210343918U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- servo
- piston
- positioning hole
- servo oil
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a servo cylinder piston rotational lock, including preventing the rotational lock body, be provided with the screw thread section on preventing the upper end of the rotational lock body, be provided with the screw thread through-hole on servo cylinder dust keeper, the screw thread section is connected in the screw thread through-hole, and the lower extreme of preventing the rotational lock body stretches into in the second locating hole on the servo cylinder body after passing the first locating hole on the servo cylinder liner. The utility model discloses an prevent changeing the body of rod, its processing, installation are simple, and later maintenance is convenient with the maintenance, has improved equipment production efficiency, and convenience of customers uses.
Description
Technical Field
The utility model relates to a rolling mill servo cylinder especially relates to a servo cylinder piston rotational lock.
Background
The displacement sensor of the rolling mill hydraulic servo system is an important detection element for controlling the thickness of a rolling mill strip, and is divided into a built-in displacement sensor and an external displacement sensor. If an external displacement sensor is selected, two displacement sensors are usually arranged on the diagonal line of each servo oil cylinder of the rolling mill and used for detecting the actual displacement of the piston of the servo oil cylinder, and the actual displacement of the servo oil cylinder is transmitted to a control system of a hydraulic servo system through the displacement sensors. In the working process of the servo oil cylinder, the piston is always in an adjusting (up-and-down motion) state to ensure that the thickness difference of the strip is within a normal control range, but an oil cylinder piston anti-rotation device is also required to be arranged to ensure the normal work of the displacement sensor. In the prior art, the anti-rotation device for the piston of the servo oil cylinder is complex in structure, difficult in design, processing and assembly and increased in manufacturing cost and maintenance cost.
In the prior art, the servo oil cylinder piston anti-rotation device has the following defects: the design and manufacturing costs are increased, and the installation, use and maintenance are complicated.
Disclosure of Invention
In order to solve the problems, the utility model aims at providing a servo cylinder piston anti-rotation device which is simple in design, manufacture, installation and maintenance.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides a servo cylinder piston rotational lock, is provided with the screw thread section including preventing the rotational lock body on the upper end of the rotational lock body, is provided with the screw thread through-hole on servo cylinder dust keeper, the screw thread section is connected in the screw thread through-hole, and the lower extreme of preventing the rotational lock body stretches into in the second locating hole on the servo cylinder body after passing the first locating hole on the servo cylinder liner.
Furthermore, the central axes of the threaded through hole, the first positioning hole and the second positioning hole are coincided.
Furthermore, a screwing part is arranged on the anti-rotation rod body and is positioned between the servo oil cylinder dustproof device and the servo oil cylinder sleeve.
Furthermore, the circumferential side surface of the screwing part is of a multi-plane structure consisting of a plurality of screwing planes.
Furthermore, the first positioning hole and the second positioning hole are both unthreaded holes.
Furthermore, the anti-rotation rod body is in clearance fit with the first positioning hole and the anti-rotation rod body is in clearance fit with the second positioning hole.
Due to the adoption of the technical scheme, the utility model discloses can produce following beneficial effect:
the utility model discloses an prevent changeing the body of rod, its processing, installation are simple, and later maintenance is convenient with the maintenance, has improved equipment production efficiency, and convenience of customers uses.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an assembly structure of an anti-rotation rod body;
in the figure: 1. an anti-rotation rod body; 11. a screwing part; 12. a threaded segment; 2. a servo oil cylinder dustproof device; 3. a servo cylinder sleeve; 4. a servo cylinder body; 5. a displacement sensor; 6. a servo cylinder piston.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and 2, the anti-rotation device for the servo oil cylinder piston comprises an anti-rotation rod body 1, wherein a threaded section 12 is arranged at the upper end part of the anti-rotation rod body 1, a threaded through hole is arranged on the servo oil cylinder dustproof device 2, the threaded section 12 is connected in the threaded through hole, the lower end of the anti-rotation rod body 1 penetrates through a first positioning hole on a servo oil cylinder sleeve 3 and then extends into a second positioning hole on a servo oil cylinder body 4, and the first positioning hole and the second positioning hole are both unthreaded holes; the central axes of the threaded through hole, the first positioning hole and the second positioning hole are coincided.
In order to facilitate the operation of the anti-rotation rod body 1, the anti-rotation rod body 1 is provided with the screwing part 11, the screwing part 11 is located between the servo oil cylinder dustproof device 2 and the servo oil cylinder sleeve 3, the circumferential side surface of the screwing part 11 is of a multi-plane structure formed by a plurality of screwing planes, and during operation, the screwing part 11 can be conveniently operated through the wrench clamping main body.
In addition, it is preferable that the circumscribed circle diameter of the screw part 11 is smaller than the rod body diameter of the rotation prevention rod body 1.
In order to ensure that the up-and-down sliding of the anti-rotation rod body 1 is smooth, the anti-rotation rod body 1 and the first positioning hole are in clearance fit, and the anti-rotation rod body and the second positioning hole are in clearance fit.
The utility model discloses a servo cylinder piston rotational lock's theory of operation does: the threaded section 12 of the anti-rotation rod body 1 is in threaded connection with the servo oil cylinder dustproof device 2, and the threaded section 12 at the upper end of the anti-rotation rod body is installed in a threaded hole in the servo oil cylinder dustproof device 2 by rotating the anti-rotation rod body 1 through clamping the screwing part 11 of the anti-rotation rod body by a wrench; the small end of the servo oil cylinder piston 6 is connected with the servo oil cylinder dustproof device 2 through a bolt, the servo oil cylinder piston 6, the servo oil cylinder dustproof device 2 and the anti-rotation rod body 1 can be regarded as a whole, and the servo oil cylinder sleeve 3 and the servo oil cylinder body 4 are connected through the bolt to form a whole; the displacement sensors 5 of the servo oil cylinder are arranged on two sides of the cylinder body 4 of the servo oil cylinder, and when the piston 6 of the servo oil cylinder moves up and down, the anti-rotation rod body 1 also moves up and down along with the piston 6 of the servo oil cylinder; the movable end of the displacement sensor 5 is contacted with the lower plane of the servo oil cylinder dustproof device 2, and when the servo oil cylinder piston 6 and the anti-rotation rod body 1 move up and down as a whole, the movable end of the displacement sensor 5 also abuts against the lower plane of the servo oil cylinder dustproof device 2 by a self spring to move up and down; the lower end part of the anti-rotation rod body 1 is always positioned in the positioning hole of the servo oil cylinder body 4 to move, so that the servo oil cylinder dustproof device 2 is ensured not to move relative to the movable end of the displacement sensor 5, and the measuring accuracy is ensured.
Claims (6)
1. The utility model provides a servo cylinder piston rotational lock which characterized in that: the anti-rotation rod comprises an anti-rotation rod body, wherein a thread section is arranged on the upper end part of the anti-rotation rod body, a thread through hole is formed in a servo oil cylinder dustproof device, the thread section is connected in the thread through hole, and the lower end of the anti-rotation rod body penetrates through a first positioning hole in a servo oil cylinder sleeve and then extends into a second positioning hole in a servo oil cylinder body.
2. The anti-rotation device for the piston of the servo cylinder as claimed in claim 1, wherein: the central axes of the threaded through hole, the first positioning hole and the second positioning hole are coincided.
3. The anti-rotation device for the piston of the servo cylinder as claimed in claim 1, wherein: and the anti-rotation rod body is provided with a screwing part, and the screwing part is positioned between the servo oil cylinder dustproof device and the servo oil cylinder sleeve.
4. The anti-rotation device for the piston of the servo cylinder as claimed in claim 3, wherein: the circumferential side surface of the screwing part is of a multi-plane structure consisting of a plurality of screwing planes.
5. The anti-rotation device for the piston of the servo cylinder as claimed in claim 1, wherein: the first positioning hole and the second positioning hole are light holes.
6. The anti-rotation device for the piston of the servo cylinder as claimed in claim 1 or 5, wherein: the anti-rotation rod body is in clearance fit with the first positioning hole and the second positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717116.5U CN210343918U (en) | 2019-05-20 | 2019-05-20 | Anti-rotation device for piston of servo oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717116.5U CN210343918U (en) | 2019-05-20 | 2019-05-20 | Anti-rotation device for piston of servo oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343918U true CN210343918U (en) | 2020-04-17 |
Family
ID=70182354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920717116.5U Active CN210343918U (en) | 2019-05-20 | 2019-05-20 | Anti-rotation device for piston of servo oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343918U (en) |
-
2019
- 2019-05-20 CN CN201920717116.5U patent/CN210343918U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205271446U (en) | Anchor clamps with pressure sensing device | |
| CN210343918U (en) | Anti-rotation device for piston of servo oil cylinder | |
| CN110259761A (en) | Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure | |
| CN104634492B (en) | High-precision bidirectional force feedback and bidirectional bearing retractor device | |
| CN104833489A (en) | Hydraulic locking shaft sleeve performance and reliability test platform | |
| CN109373050B (en) | Corrosion-resistant high-performance flow controller | |
| CN210829979U (en) | Novel structure capable of monitoring state of large-stroke hydraulic valve | |
| CN202427729U (en) | Screwdown inspection and detection device for hydraulic rolling mill | |
| CN207921260U (en) | A kind of end cover type ball nut that can be threaded connection with | |
| CN203518902U (en) | Steel wire rope metering device | |
| CN208042956U (en) | Cubing for detecting cylinder body main oil gallery blanking cover depth | |
| CN103953605B (en) | Hydrolic plate bender numerical control range-adjustable oil hydraulic cylinder | |
| CN213418495U (en) | Movable screw for building template | |
| CN203835856U (en) | Numerically-controlled adjustable stroke hydraulic cylinder for hydraulic plate bender | |
| CN210570730U (en) | Electromagnetic eddy current sensor | |
| CN209424918U (en) | A kind of tight nut special plane | |
| CN110701138B (en) | Novel structure capable of monitoring state of large-stroke hydraulic valve | |
| CN212158913U (en) | Liquid pressure sensor convenient to installation | |
| CN203463414U (en) | Oil cylinder with adjustable stroke and installation distance | |
| CN208772481U (en) | Large-scale lathe revolving meber beat centering auxiliary tool | |
| CN110925265A (en) | Maximum stroke self-adjusting hydraulic cylinder | |
| CN218191908U (en) | Robot binding head | |
| CN220869482U (en) | Gap adjusting device for sealing bush | |
| CN203009452U (en) | Cylinder piston stop device | |
| CN219004277U (en) | Axial limiting mechanism for straightening roller system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |