CN210153134U - Pneumatic damping device for stay cable - Google Patents
Pneumatic damping device for stay cable Download PDFInfo
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- CN210153134U CN210153134U CN201920518155.2U CN201920518155U CN210153134U CN 210153134 U CN210153134 U CN 210153134U CN 201920518155 U CN201920518155 U CN 201920518155U CN 210153134 U CN210153134 U CN 210153134U
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Abstract
A pneumatic damping device for a stay cable is composed of an upper pull cylinder and a lower pull cylinder which are coaxially arranged. The upper pull cylinder consists of an upper cover and an upper sleeve, the upper cover is provided with at least three pull rods sleeved with damping springs, and the lower ends of the pull rods are connected with a lower flange arranged in the lower pull cylinder; the lower pull cylinder consists of a lower cover and a lower sleeve, the lower cover is also provided with at least three pull rods sleeved with damping springs, and the upper ends of the pull rods are connected with an upper flange arranged in the upper pull cylinder; at least two damping gas springs and two damping hydraulic oil cylinders are arranged between the upper flange and the lower flange. The combined pneumatic damping device consists of a plurality of damping springs, a gas spring and a hydraulic oil cylinder, has large damping force, various complementary damping forces and stable damping; even if one or more damping elements in the pneumatic damping device are damaged, the pneumatic damping device can still work normally, and the pneumatic damping device is long in service life and high in reliability.
Description
Technical Field
The utility model relates to a pneumatic damping device of suspension cable, especially a pneumatic damping device of suspension cable combination.
Background
At present, a damping device for a stay cable mainly comprises a spring damping device, a hydraulic damping device, a viscous damping device and other single damping devices. The damping force is small, and the damping effect is not obvious; the damping force is not uniform, and the damping impact phenomenon exists; the damping device is easy to damage, short in service life and poor in reliability.
SUMMERY OF THE UTILITY MODEL
To the not enough of current damping device for the suspension cable existence, the utility model provides a suspension cable damping device, it comprises coaxial setting relative slip's last slide and a slide down. The method is characterized in that: the upper pulling cylinder consists of an upper cover provided with an earring with a hole and an upper sleeve. The upper cover is connected and fixed with the upper end of the upper sleeve, at least three pull rods sleeved with damping springs are arranged on the upper cover, and the lower ends of the pull rods are connected and fixed with a lower flange which is arranged in the lower pull cylinder and can slide; the pull-down cylinder consists of a lower cover provided with an earring with a hole and a lower sleeve. The lower cover is connected and fixed with the lower end of the lower sleeve, at least three pull rods sleeved with damping springs are arranged on the lower cover, and the upper ends of the pull rods are connected with an upper flange which is arranged in an upper pull cylinder and can slide
Connecting and fixing; at least two damping gas springs and two damping hydraulic oil cylinders are arranged between the upper flange and the lower flange. The upper end of a cylinder body of the hydraulic cylinder is fixed on the upper flange, the lower end of the cylinder body of the hydraulic cylinder is provided with a cylinder cover with a first sealing ring, the lower end of a piston rod of the hydraulic cylinder is fixed on the lower flange, a second sealing ring is arranged on the piston, at least two oil through holes are axially arranged on the piston, and the hydraulic cylinders on two sides of the piston are filled with hydraulic oil.
The gas spring consists of a cylinder, a gas piston, an upper flange and a lower flange. The upper end of the cylinder is fixed on the upper flange, the lower end of the cylinder is provided with a cylinder cover with a sealing ring III, the air piston consists of a piston seat, a sealing ring IV and a guide ring, the lower end of a piston rod of the piston seat is fixed on the lower flange, the guide ring is arranged below the sealing ring IV, and compressed air is filled in the cylinder at the upper end of the air piston.
And the sealing ring IV consists of a sealing assembly and a pressing device. The sealing assembly consists of a concave conical sealing ring and a convex conical pressing ring, and the convex conical pressing ring is pressed on the concave conical sealing ring. The pressing device is composed of a spring, a pressing cover and a screw, the spring is arranged at the upper end of the convex conical pressing ring, the upper end of the spring is in contact with the pressing cover, and the pressing cover is connected with the piston seat through the screw.
The utility model has the advantages that: the pneumatic damping device is composed of a plurality of damping springs, a plurality of damping gas springs and a plurality of damping hydraulic oil cylinders. The damping force is large, and the powerful swing of the stay cable can be effectively prevented and eliminated; secondly, the pneumatic damping device consists of a plurality of damping forces with different characteristics, the damping forces are uniform and stable, the damping impact phenomenon is avoided, and the pneumatic damping device can effectively improve the damping effect
The service life of the high stay cable is prolonged; thirdly, the pneumatic damping device is flexibly connected with the stay cable, so that the connection is reliable and the stay cable is not easy to loosen and break; fourthly, even if one or more damping elements in the pneumatic damping device are damaged, the pneumatic damping device can still work normally, and the service life is long.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a partial sectional view B-B of fig. 1.
Fig. 4 is a partial enlarged view of C in fig. 3.
In the figure: 10. the hydraulic cylinder comprises an upper cover, 11 parts of an upper sleeve, 12 parts of a spring, 13 parts of a pull rod, 14 parts of a lower flange, 20 parts of a lower cover, 21 parts of a lower sleeve, 22 parts of an upper flange, 40 parts of a cylinder, 41 parts of a piston, 50 parts of a cylinder, 51 parts of an air piston, 101 parts of a hole, 400 parts of a cylinder cover, 401 parts of a first sealing ring, 402 parts of hydraulic oil, 410 parts of a second sealing ring, 411 parts of an oil through hole, 500 parts of a third sealing ring, 501 parts of the cylinder cover, 502 parts of compressed gas, 510 parts of a fourth sealing ring, 511 parts of a piston seat, 512 parts of a guide ring, 011 parts of a concave conical sealing ring, 012 parts of a convex conical pressing ring, 013 parts of a spring.
Detailed Description
A pneumatic damper for stay cable is composed of upper and lower pull cylinders which are coaxially arranged and can slide relatively. The method is characterized in that: the upper pulling cylinder consists of an upper cover 10 provided with an earring with a hole 101 and an upper sleeve 11. The upper cover 10 is connected and fixed with the upper end of the upper sleeve 11, at least three pull rods 13 sleeved with damping springs 12 are arranged on the upper cover 10, and the lower ends of the pull rods 13 are connected and fixed with a lower flange 14 which is arranged in the lower pull cylinder and can slide; the pull-down cylinder consists of a lower cover 20 provided with an earring with a hole 101 and a lower sleeve 21. The lower cover 20 is connected and fixed with the lower end of the lower sleeve 21, at least three pull rods 13 sleeved with damping springs 12 are also arranged on the lower cover 20, and the upper ends of the pull rods 13 are connected and fixed with an upper flange 22 which is arranged in the upper pull cylinder and can slide; at least two damping gas springs and two damping hydraulic oil cylinders 40 are arranged between the upper flange 22 and the lower flange 14. The upper end of the cylinder body of the hydraulic oil cylinder 40 is fixed on the upper flange 22, the lower end of the hydraulic oil cylinder 40 is provided with an oil cylinder cover 400 with a first sealing ring 401, the lower end of a piston rod 41 of the hydraulic oil cylinder 40 is fixed on the lower flange 14, a second sealing ring 410 is arranged on the piston 41, at least two oil through holes 411 are axially arranged on the piston 41, and the hydraulic oil cylinder 40 on two sides of the piston 41 is filled with hydraulic oil 402.
The gas spring consists of a cylinder 50, a gas piston 51, an upper flange 22 and a lower flange 14. The upper end of the cylinder 50 is fixed on the upper flange 22, the lower end of the cylinder 50 is provided with a cylinder cover 501 with a sealing ring III 500, the air piston 51 consists of a piston seat 511, a sealing ring IV 510 and a guide ring 512, the lower end of the piston rod of the piston seat 511 is fixed on the lower flange 14, the guide ring 512 is arranged below the sealing ring IV 510, and the cylinder 50 at the upper end of the air piston 51 is filled with compressed gas 502.
And the sealing ring IV 510 consists of a sealing assembly and a pressing device. The sealing assembly consists of a concave conical sealing ring 011 and a convex conical pressing ring 012, and the convex conical pressing ring
The ring 012 presses on the concave conical sealing ring 011. The pressing device consists of a spring 013, a gland 014 and a screw 015, the spring 013 is arranged at the upper end of a convex conical pressing ring 012, the upper end of the spring 013 is in contact with the gland 014, and the gland 014 is connected with the piston seat 511 through the screw 015.
The combined pneumatic damping device comprising the plurality of damping springs 12, the plurality of damping gas springs and the plurality of damping hydraulic cylinders 40 can be operated as normal even if one or more of the damping elements therein are damaged.
Claims (3)
1. The utility model provides a pneumatic damping device of suspension cable, but comprises coaxial setting relative slip's last slide and slide down, its characterized in that: the upper pull cylinder consists of an upper cover and an upper sleeve, the upper cover is provided with an earring with a hole, the upper cover is connected and fixed with the upper end of the upper sleeve, the upper cover is provided with at least three pull rods sleeved with damping springs, and the lower ends of the pull rods are connected and fixed with a lower flange which is arranged in the lower pull cylinder and can slide; the lower pull cylinder consists of a lower cover provided with an earring with a hole and a lower sleeve, the lower cover is connected and fixed with the lower end of the lower sleeve, the lower cover is also provided with at least three pull rods sleeved with damping springs, and the upper ends of the pull rods are connected and fixed with an upper flange which is arranged in the upper pull cylinder and can slide; the hydraulic oil cylinder is characterized in that at least two damping air springs and two damping hydraulic oil cylinders are arranged between the upper flange and the lower flange, the upper end of a cylinder body of each hydraulic oil cylinder is fixed on the upper flange, an oil cylinder cover with a first sealing ring is arranged at the lower end of the cylinder body of each hydraulic oil cylinder, the lower end of a piston rod of each hydraulic oil cylinder is fixed on the lower flange, a second sealing ring is arranged on each piston, at least two oil through holes are axially arranged on each piston, and the hydraulic oil cylinders on the.
2. The pneumatic stay cable damping device according to claim 1, wherein: the air spring is composed of an air cylinder, an air piston, an upper flange and a lower flange, wherein the upper end of the air cylinder is fixed on the upper flange, the lower end of the air cylinder is provided with an air cylinder cover with a third sealing ring, the air piston is composed of a piston seat, a fourth sealing ring and a guide ring, the lower end of a piston rod of the piston seat is fixed on the lower flange, the guide ring is arranged below the fourth sealing ring, and compressed air is filled in the air cylinder at the upper end of the air piston.
3. The pneumatic stay cable damping device according to claim 2, wherein the sealing ring IV comprises a sealing assembly and a pressing device, the sealing assembly comprises a concave conical sealing ring and a convex conical pressing ring, the convex conical pressing ring presses on the concave conical sealing ring, the pressing device comprises a spring, a pressing cover and a screw, the spring is arranged at the upper end of the convex conical pressing ring, the upper end of the spring is in contact with the pressing cover, and the pressing cover is connected with the piston seat through the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518155.2U CN210153134U (en) | 2019-04-17 | 2019-04-17 | Pneumatic damping device for stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518155.2U CN210153134U (en) | 2019-04-17 | 2019-04-17 | Pneumatic damping device for stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210153134U true CN210153134U (en) | 2020-03-17 |
Family
ID=69756994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920518155.2U Expired - Fee Related CN210153134U (en) | 2019-04-17 | 2019-04-17 | Pneumatic damping device for stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210153134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017347A (en) * | 2019-04-17 | 2019-07-16 | 江苏苏通大桥有限责任公司 | A kind of suspension cable air damping device |
-
2019
- 2019-04-17 CN CN201920518155.2U patent/CN210153134U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017347A (en) * | 2019-04-17 | 2019-07-16 | 江苏苏通大桥有限责任公司 | A kind of suspension cable air damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200317 |