CN114498515A - Semi-active air pressure inertial volume-hydraulic damping combined type anti-galloping energy consumption device - Google Patents
Semi-active air pressure inertial volume-hydraulic damping combined type anti-galloping energy consumption device Download PDFInfo
- Publication number
- CN114498515A CN114498515A CN202111532453.5A CN202111532453A CN114498515A CN 114498515 A CN114498515 A CN 114498515A CN 202111532453 A CN202111532453 A CN 202111532453A CN 114498515 A CN114498515 A CN 114498515A
- Authority
- CN
- China
- Prior art keywords
- cavity
- air pressure
- baffle
- piston
- semi
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 35
- 238000005265 energy consumption Methods 0.000 title claims abstract description 14
- 125000006850 spacer group Chemical group 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
- H02G7/125—Damping spacers
Abstract
The invention discloses a semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy consumption device which comprises an outer barrel, an inner barrel arranged in the outer barrel and spacer bushes fixedly arranged at two ends in the inner barrel, wherein the inner barrel is divided into a function cavity and a middle cavity by the spacer bushes, and compressed air is filled in the function cavity and the middle cavity; a flow blocking cavity is formed between the first baffle and the second baffle, flow blocking liquid is filled in the flow blocking cavity, a plurality of impellers are arranged between the first baffle and the second baffle, a second piston is arranged on the other side of the first baffle, a plurality of ball nuts are arranged on the second piston, and the second piston, the ball nuts and the rotating rod form a ball screw pair structure. The invention realizes semi-active control and effectively inhibits the conductor from waving by combining air pressure inertial volume and liquid damping. The compressed air circulation gaps in the functional cavity and the middle cavity are communicated with each other, so that the effect of the inertial volume damper is realized, the weight of the whole device is greatly reduced, the design is reasonable, the installation is convenient, and the effect is obvious.
Description
Technical Field
The invention belongs to the technical field of cable galloping prevention, and particularly relates to a semi-active air pressure inertial volume-hydraulic damping combined type galloping prevention energy consumption device.
Background
With the high-speed development of economy, the demand of China on energy sources is increasing day by day, and China enters the peak period of electric power construction, so that the maintenance of stable and safe operation of a transmission conductor and the guarantee of normal supply of electric power energy sources have great significance. The transmission line can swing due to factors such as ice coating, wind excitation, the self structural parameters of the transmission line and the like, generally has long duration, causes fatigue damage, line whip, abrasion, strand breakage, fracture, falling and the like of the transmission line and hardware, sometimes even causes vicious events such as power failure tripping of the transmission line, inclination or collapse of a tower and the like, and seriously threatens the safe operation of the transmission line. With the continuous development of the electric power industry in China, the transmission line has the tendency that the section of the lead is larger, the number of split parts is larger and the like, so that the anti-galloping situation of the transmission line is more severe, and higher requirements are provided for the anti-galloping work of the transmission line. Therefore, the anti-galloping vibration reduction problem of the power transmission line is solved, and the safety of the line is guaranteed, so that the method has important significance.
At present, aiming at the galloping of the transmission conductor, various technical measures such as an anti-galloping spacer and the like have been proposed for limiting the relative motion of the conductor and converting the energy of vibration into energy consumption in other forms, but the existing anti-galloping spacer is mostly passive anti-galloping, has limited vibration constraint capacity on the transmission conductor and does not meet the requirement of galloping prevention of the transmission conductor at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a semi-active air pressure inerter-hydraulic damping combined anti-galloping energy consumption device, and solves the problem that the vibration constraint capacity of the existing power transmission line on the line is limited due to passive anti-galloping under the action of environmental excitation.
In order to achieve the purpose, the invention adopts the technical scheme that:
a semi-active air pressure inertia capacity-hydraulic damping combined anti-galloping energy consumption device comprises an outer barrel, an inner barrel arranged in the outer barrel and spacer bushes fixedly arranged at two ends in the inner barrel, wherein the spacer bushes divide the inner barrel into a functional cavity and a middle cavity, the cavity between the spacer bushes and the inner barrel is the functional cavity, the cavity in the spacer bushes is the middle cavity, a circulation gap is arranged between the middle cavity and the functional cavity, and compressed gas is filled in the functional cavity and the middle cavity; the connecting device comprises an outer barrel, a connecting piece, a wire clamp and a power transmission lead, wherein connecting seats are arranged at two ends of the outer barrel, a first piston is arranged in a spacer sleeve at the upper part of the outer barrel, a plurality of springs are arranged on the first piston, the upper ends of the springs are connected with an end cover of the inner barrel, the connecting piece is arranged at one side of the connecting seat, the connecting piece at the upper part of the connecting piece is connected with the upper surface of the first piston through a drag rod connecting rod, the connecting piece at the lower end of the connecting piece is fixedly connected with the connecting seat, a connecting arm is arranged at one side of the connecting piece, and the wire clamp is connected with the power transmission lead; a first baffle is arranged in the function cavity, a second baffle is arranged on one side of the first baffle, a flow-blocking cavity is formed between the first baffle and the second baffle, flow-blocking liquid is filled in the flow-blocking cavity, a plurality of impellers are arranged between the first baffle and the second baffle, the middle parts of the impellers are connected with rotating rods, the rotating rods penetrate through the whole function cavity, and two ends of the rotating rods are rotatably connected with an end cover of the inner cylinder; the other side of the first baffle is provided with a second piston, threads are arranged at two ends of the rotating rod, a plurality of ball nuts are arranged on the second piston, the ball nuts are sleeved outside the rotating rod, and the second piston, the ball nuts and the rotating rod form a ball screw pair structure.
As a further preferred option of the technical scheme, elastic cushion layers are arranged inside the connecting seat and the wire clamp, the elastic cushion layers in the connecting seat avoid violent collision between the connecting piece and the outer cylinder, and the elastic cushion layers in the wire clamp avoid damage to the wires caused by the wire clamp.
As a further optimization of the technical scheme, a sleeve is arranged on one side of the connecting piece, an adjusting bolt is arranged on the sleeve, a plurality of adjusting holes are uniformly formed in the connecting arm, and the adjusting bolt is inserted in the adjusting holes, so that the device can be conveniently installed and used on split conductors with different intervals.
As a further preference of the technical scheme, a hanging rod is arranged in the spacer bush at the lower part, the lower end of the hanging rod is connected with a heavy hammer, the inertia of the device is increased by the heavy hammer, and the galloping amplitude of the wire is reduced; the utility model discloses a damping device of weight, including jib, universal coupling, weight, jib both ends all are equipped with universal coupling, and the universal coupling of upper end is connected with the upper end of lower part spacer, and the universal coupling and the weight of lower extreme are connected, and universal coupling makes this device to the instant that arbitrary direction rocked, and the weight keeps in original position to guarantee the damping effect of weight.
As a further preferred aspect of the present technical solution, a plurality of resilient strips are disposed outside the weight, one side of each resilient strip is fixedly connected to the weight, and the other side of each resilient strip is a free end, so that the resilient strips reduce the noise caused by the impact between the weight and the lower spacer and absorb part of the vibration energy.
As a further optimization of the technical scheme, a plurality of limiting baffles are arranged on the lower end of the spacer bush, the outer wall of the spacer bush and the inner wall of the inner cylinder, the limiting baffles are arranged on two sides of the second piston, the limiting baffles limit the movement range of the first piston and the second piston, and the first piston and the second piston are prevented from colliding.
Preferably, the sectional area of the intermediate cavity is larger than that of the functional cavity, and the sectional area of the intermediate cavity is 1.5-2 times of that of the functional cavity.
As a further preferred option of the technical scheme, generators are arranged at two ends of the rotating rod, storage batteries are fixedly connected to two ends of the inner cylinder, an electrified coil is wound on the outer wall of the inner cylinder and is wound outside the choke chamber, a fuse is arranged on the outer wall of the inner cylinder, a rectifier is connected to one side of the fuse, a controller and a switch (not shown in the figure) are arranged on one side of the rectifier, an air pressure sensor is arranged on one side of the first baffle, the generators, the fuse, the rectifier, the air pressure sensor, the controller, the switch and the storage batteries are electrically connected, wherein the generators and the storage batteries are connected with the controller, the air pressure sensor and the electrified coil in parallel, and the choke fluid is magnetorheological fluid; according to the vibration amplitude of the lead, air pressure is induced through an air pressure sensor, and the current of the electrified coil is adjusted through a controller; the magnetic field intensity generated after the energizing coil is electrified is continuously changed, so that the fluidity viscosity of the magnetorheological fluid is changed, the rotating damping force of the impeller is adjusted, and the aims of energy consumption and vibration reduction are further achieved.
As a further optimization of the technical scheme, an insulating porcelain bottle is arranged at one end of the connecting arm, the line clamp is connected with one end of the insulating porcelain bottle, and the outer cylinder is made of insulating materials, so that the inner part of the inner cylinder is not influenced by the magnetic field of the external transmission conductor.
As a further optimization of the technical scheme, rubber sealing rings are arranged on one sides of the first baffle and the second baffle, so that the overflowing of choked flow liquid is avoided, lubricating oil is coated on the inner wall of the inner cylinder, the inner wall of the spacer sleeve and the outer wall of the spacer sleeve, the running resistance of the first piston and the second piston is reduced, and the running smoothness of the first piston and the second piston is ensured.
The invention has the beneficial effects that:
1) the invention realizes semi-active control and effectively inhibits the wire from waving by combining air pressure inertial volume and liquid damping. The compressed air circulation gaps in the functional cavity and the middle cavity are communicated with each other, so that the effect of the inertial volume damper is realized, the weight of the whole device is greatly reduced, the design is reasonable, the installation is convenient, and the effect is obvious.
2) Elastic cushion layers are arranged in the connecting seat and the wire clamp, the elastic cushion layers in the connecting seat avoid violent collision between the connecting piece and the outer barrel, and the elastic cushion layers in the wire clamp avoid damage of the wire clamp to the wires.
3) Connecting piece one side is equipped with the sleeve, is equipped with adjusting bolt on the sleeve, is equipped with a plurality of regulation holes of evenly arranging on the linking arm, and adjusting bolt pegs graft in the regulation hole, and this device of being convenient for is installed and is used on the split conductor of different intervals.
4) A hanging rod is arranged in the spacer bush at the lower part, the lower end of the hanging rod is connected with a heavy hammer, the inertia of the device is increased by the heavy hammer, and the galloping amplitude of the lead is reduced; the jib both ends all are equipped with universal joint, and the universal joint of upper end is connected with the upper end of lower part spacer, and the universal joint and the weight of lower extreme are connected, and universal joint makes this device rock to arbitrary direction in the twinkling of an eye, and the weight keeps in original position to guarantee the damping effect of weight.
5) The weight hammer is provided with a plurality of elastic sheets outside, one side of each elastic sheet is fixedly connected with the weight hammer, the other side of each elastic sheet is a free end, and the elastic sheets reduce the impact noise between the weight hammer and the lower spacer sleeve and absorb part of vibration energy.
6) All be equipped with a plurality of limit baffle on the lower extreme of spacer and outer wall and the inner tube inner wall, and limit baffle sets up in the both ends of second piston, and limit baffle has restricted the motion range of first piston and second piston, has avoided first piston and second piston to bump.
7) According to the vibration amplitude of the lead, air pressure is induced through an air pressure sensor, and the current of the electrified coil is adjusted through a controller; the magnetic field intensity generated after the energizing coil is electrified is continuously changed, so that the fluidity viscosity of the magnetorheological fluid is changed, the rotating damping force of the impeller is adjusted, and the aims of energy consumption and vibration reduction are further achieved.
8) An insulating porcelain bottle is arranged at one end of the connecting arm, the wire clamp is connected with one end of the insulating porcelain bottle, and the outer cylinder is made of insulating materials, so that the inside of the inner cylinder is not influenced by the magnetic field of an external transmission conductor.
9) Rubber sealing rings are arranged on one sides of the first baffle and the second baffle, so that the overflowing of choked flow liquid is avoided, lubricating oil is coated on the inner wall of the inner cylinder, the inner wall of the spacer sleeve and the outer wall of the spacer sleeve, the running resistance of the first piston and the second piston is reduced, and the running smoothness of the first piston and the second piston is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy dissipation device.
FIG. 2 is a schematic diagram of the internal structure of a semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy dissipation device.
FIG. 3 is a schematic diagram of an assembly of a line card and an insulating porcelain bottle in the semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy consumption device.
FIG. 4 is a schematic diagram of an assembly of a rotating rod and a ball nut in the semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy dissipation device.
FIG. 5 is a schematic diagram of a heavy hammer structure in the semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy dissipation device.
FIG. 6 is a control circuit diagram of a semi-active air pressure inertial volume-hydraulic damping combined anti-galloping energy dissipation device.
In the figure: 1. an outer cylinder; 2. an inner barrel; 3. a spacer sleeve; 4. a first piston; 5. a spring; 6. a connecting rod; 7. a connecting seat; 8. an elastic cushion layer; 9. a connecting member; 10. an end cap; 11. a rotating rod; 12. a second piston; 13. a ball nut; 14. a first baffle plate; 15. a second baffle; 16. an impeller; 17. a generator; 18. a storage battery; 19. an electrified coil; 20. a boom; 21. a universal coupling; 22. a weight; 23. a spring plate; 24. an air pressure sensor; 25. a limit baffle; 26. a sleeve; 27. a connecting arm; 28. an adjustment hole; 29. adjusting the bolt; 30. an insulating porcelain insulator; 31. a line card; 32. a fuse; 33. a rectifier; 34. a controller; 35. and (4) switching.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 6, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a specific orientation, a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-2, a semi-active air pressure inertia capacity-hydraulic damping combined anti-waving energy dissipation device comprises an outer cylinder 1, an inner cylinder 2 arranged inside the outer cylinder 1 and spacer bushes 3 fixedly arranged at two ends inside the inner cylinder 2, wherein the inner cylinder 2 is divided into a functional cavity and an intermediate cavity by the spacer bushes 3, the cavity between the spacer bush 3 and the inner cylinder 2 is the functional cavity, the cavity inside the spacer bush 3 is the intermediate cavity, a circulation gap is arranged between the intermediate cavity and the functional cavity, and compressed gas is filled in the functional cavity and the intermediate cavity; the two ends of the outer cylinder 1 are provided with connecting seats 7, a first piston 4 is arranged in a spacer 3 at the upper part, the first piston 4 is provided with a plurality of springs 5, the upper ends of the springs 5 are connected with an end cover 10 of the inner cylinder 2, one side of the connecting seat 7 is provided with a connecting piece 9, the connecting piece 9 at the upper part is connected with the upper surface of the first piston 4 through a drag rod connecting rod 6, the connecting piece 9 at the lower end is fixedly connected with the connecting seat 7, one side of the connecting piece 9 is provided with a connecting arm 27, one end of the connecting arm 27 is provided with a wire clamp 31, and the wire clamp 31 is connected with a power transmission lead; a first baffle 14 is arranged in the functional cavity, a second baffle 15 is arranged on one side of the first baffle 14, a flow blocking cavity is formed between the first baffle 14 and the second baffle 15, flow blocking liquid is filled in the flow blocking cavity, a plurality of impellers 16 are arranged between the first baffle 14 and the second baffle 15, the middle parts of the impellers 16 are connected with a rotating rod 11, the rotating rod 11 penetrates through the whole functional cavity, and two ends of the rotating rod 11 are rotatably connected with an end cover 10 of the inner cylinder 2; the other side of the first baffle 14 is provided with a second piston 12, the two ends of the rotating rod 11 are provided with threads, the second piston 12 is provided with a plurality of ball nuts 13, the ball nuts 13 are sleeved outside the rotating rod 11, and the second piston 12, the ball nuts 13 and the rotating rod 11 form a ball screw pair structure.
As shown in fig. 2, in the present embodiment, the elastic cushion 8 is disposed inside the connection seat 7 and the wire clip 31, the elastic cushion 8 in the connection seat 7 prevents the connection member 9 from violently colliding with the outer barrel 1, and the elastic cushion 8 in the wire clip 31 prevents the wire clip 31 from damaging the wire.
As shown in fig. 3, in this embodiment, a sleeve 26 is disposed on one side of the connecting member 9, an adjusting bolt 29 is disposed on the sleeve 26, a plurality of adjusting holes 28 are uniformly disposed on the connecting arm 27, and the adjusting bolt 29 is inserted into the adjusting holes 28, so that the device can be conveniently mounted on split conductors with different pitches.
As shown in fig. 5, in the embodiment, a suspension rod 20 is arranged inside the spacer 3 at the lower part, the lower end of the suspension rod 20 is connected with a heavy hammer 22, and the heavy hammer 22 increases the inertia of the device and reduces the galloping amplitude of the wire; the both ends of jib 20 all are equipped with universal joint 21, and universal joint 21 and the upper end of lower part spacer 3 of upper end are connected, and universal joint 21 and the weight 22 of lower extreme are connected, and universal joint 21 makes this device to the instant of arbitrary direction rocking, and weight 22 keeps in the original position to guarantee weight 22's damping effect.
As shown in fig. 5, in the present embodiment, the weight 22 is provided with a plurality of spring plates 23 on the outside, one side of each spring plate 23 is fixedly connected to the weight 22, and the other side of each spring plate 23 is a free end, so that the spring plates 23 reduce the noise caused by the impact between the weight 22 and the lower spacer 3 and absorb part of the vibration energy.
As shown in fig. 2, in this embodiment, a plurality of limiting baffles 25 are disposed on the lower end and the outer wall of the spacer 3 and the inner wall of the inner cylinder 2, the limiting baffles 25 are disposed at two ends of the second piston 12, the limiting baffles 25 limit the movement range of the first piston 4 and the second piston 12, and the first piston 4 and the second piston 12 are prevented from colliding.
In this embodiment, the sectional area of the intermediate chamber is larger than that of the functional chamber, and the sectional area of the intermediate chamber is 1.5-2 times of that of the functional chamber.
As shown in fig. 2 and 6, in this embodiment, the two ends of the rotating rod 11 are provided with generators 17, the two ends of the inner cylinder 2 are fixedly connected with storage batteries 18, the outer wall of the inner cylinder 2 is wound with an energizing coil 19, the energizing coil 19 is wound outside the choke chamber, the outer wall of the inner cylinder 2 is provided with a fuse 32, one side of the fuse 32 is connected with a rectifier 33, one side of the rectifier 33 is provided with a controller 34 and a switch 35 (not shown in the figure), one side of the first baffle 14 is provided with an air pressure sensor 24, and the generators 17, the fuse 32, the rectifier 33, the air pressure sensor 24, the controller 34, the switch 35 and the storage batteries 18 are electrically connected, wherein the generators 17 and the storage batteries 18 are connected in parallel with the controller 34, the air pressure sensor 24 and the energizing coil 19, and the choke liquid is magnetorheological fluid; according to the vibration amplitude of the lead, the air pressure is sensed through the air pressure sensor 24, and the current of the electrified coil 19 is adjusted through the controller 34; the magnetic field intensity generated after the energizing coil 19 is energized is continuously changed, so that the fluidity viscosity of the magnetorheological fluid is changed, the rotating damping force of the impeller 16 is adjusted, and the aims of energy consumption and vibration reduction are further achieved.
As shown in fig. 1 and fig. 3, in this embodiment, an insulating porcelain bottle 30 is disposed at one end of the connecting arm 27, the line card 31 is connected to one end of the insulating porcelain bottle 30, and the outer cylinder 1 is made of an insulating material, so as to ensure that the inside of the inner cylinder 2 is not affected by the magnetic field of the external transmission conductor.
In this embodiment, first baffle 14 and second baffle 15 one side all are equipped with rubber seal, have avoided choked flow liquid to spill over, all coat with lubricating oil on inner tube 2 inner wall and spacer 3 inner wall and the outer wall, reduced the resistance of first piston 4 and the operation of second piston 12, guaranteed the ride comfort of first piston 4 and the operation of second piston 12.
When the device is used, the line card 31 is connected with the upper layer conductor and the lower layer conductor of the power transmission tower, and when the power transmission conductor waves under wind load, the connecting piece 9 of the anti-wave device drives the first piston 4 to move in the spacer 3; taking the first piston 4 moving downwards as an example, compressed air in the middle cavity is extruded, and the air is pressed into the functional cavity through the circulation gap to push the ball nut 13 to move linearly, so that the second piston 12 is driven to move towards the two ends of the inner cylinder 2; because the circular cross-sectional area of the middle cavity is larger than the cross-sectional area of the functional cavity ring, the moving displacement of the ball nut 13 is larger than that of the piston, and an air pressure inertial volume system is formed; the ball nut 13 moves and simultaneously drives the rotating rod 11 to rotate rapidly, the impeller 16 is driven by the rapid rotation of the rotating rod 11 to rotate in the flow blocking chamber, and the magnetorheological fluid is driven by the impeller 16 to flow; the rotating rod 11 rotates and simultaneously drives the generator 17 to operate, the generator 17 generates induction current, and the induction current is rectified by the rectifier 33 and then stored in the storage battery 18; according to the vibration amplitude of the lead, the air pressure is sensed through the air pressure sensor 24, and the current of the electrified coil 19 is adjusted through the controller 34; the magnetic field intensity generated after the energizing coil 19 is energized is continuously changed, so that the fluidity viscosity of the magnetorheological fluid is changed, the damping force of the rotation of the impeller 16 is improved, and the aims of energy consumption and vibration reduction are fulfilled; the spring 5 is extended with the movement of the first piston 4, further improving the damping capacity of the anti-galloping device. When the anti-galloping device vibrates, the weight 22 in the lower spacer 3 has inertia for keeping the original position at the moment of vibration, and the vibration of the lead is further weakened.
When the first piston 4 moves upwards, the air in the inner cylinder 2 flows from the functional cavity to the middle cavity through the circulation gap, the ball nut 13 is pushed to move linearly, the rotating rod 11 rotates rapidly, and the working principle of the anti-galloping device is the same as that of the anti-galloping device when the first piston 4 moves downwards, and detailed description is omitted. By combining the air pressure inertial volume and the liquid damping, the purposes of semi-active control and high-efficiency inhibition of conductor galloping are achieved. The compressed air circulation gaps in the functional cavity and the middle cavity are communicated with each other, so that the effect of the inertial volume damper is realized, the weight of the whole device is greatly reduced, the design is reasonable, the installation is convenient, and the effect is obvious.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. A semi-active air pressure inertia capacity-hydraulic damping combined anti-galloping energy consumption device comprises an outer barrel, an inner barrel arranged in the outer barrel and spacer bushes fixedly arranged at two ends in the inner barrel, and is characterized in that the spacer bushes divide the inner barrel into a function cavity and a middle cavity, wherein a cavity between the spacer bushes and the inner barrel is the function cavity, the cavity in the spacer bushes is the middle cavity, a circulation gap is arranged between the middle cavity and the function cavity, and compressed gas is filled in the function cavity and the middle cavity; the connecting device comprises an outer barrel, a connecting piece, a wire clamp and a power transmission lead, wherein connecting seats are arranged at two ends of the outer barrel, a first piston is arranged in a spacer sleeve at the upper part of the outer barrel, a plurality of springs are arranged on the first piston, the upper ends of the springs are connected with an end cover of the inner barrel, the connecting piece is arranged at one side of the connecting seat, the connecting piece at the upper part of the connecting piece is connected with the upper surface of the first piston through a drag rod connecting rod, the connecting piece at the lower end of the connecting piece is fixedly connected with the connecting seat, a connecting arm is arranged at one side of the connecting piece, and the wire clamp is connected with the power transmission lead; a first baffle is arranged in the function cavity, a second baffle is arranged on one side of the first baffle, a flow-blocking cavity is formed between the first baffle and the second baffle, flow-blocking liquid is filled in the flow-blocking cavity, a plurality of impellers are arranged between the first baffle and the second baffle, the middle parts of the impellers are connected with rotating rods, the rotating rods penetrate through the whole function cavity, and two ends of the rotating rods are rotatably connected with an end cover of the inner cylinder; the other side of the first baffle is provided with a second piston, threads are arranged at two ends of the rotating rod, a plurality of ball nuts are arranged on the second piston, the ball nuts are sleeved outside the rotating rod, and the second piston, the ball nuts and the rotating rod form a ball screw pair structure.
2. The semi-active air pressure inertia volume-hydraulic damping combined anti-galloping energy dissipation device of claim 1, wherein elastic cushion layers are arranged inside the connecting seat and the line clamp.
3. The semi-active air pressure inertia volume-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 1, wherein a sleeve is disposed on one side of the connecting member, an adjusting bolt is disposed on the sleeve, a plurality of adjusting holes are uniformly disposed on the connecting arm, and the adjusting bolt is inserted into the adjusting holes.
4. The semi-active air pressure inertia volume-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 1, wherein a suspension rod is arranged inside the lower spacer, a heavy hammer is connected to the lower end of the suspension rod, universal couplings are arranged at both ends of the suspension rod, the upper universal coupling is connected to the upper end of the lower spacer, and the lower universal coupling is connected to the heavy hammer.
5. The semi-active pneumatic inertial volume-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 4, wherein the weight is externally provided with a plurality of resilient plates, one side of each resilient plate is fixedly connected to the weight, and the other side of each resilient plate is a free end.
6. The semi-active air pressure inerter-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 1, wherein a plurality of limiting baffles are disposed on the lower end and outer wall of the spacer sleeve and the inner wall of the inner cylinder, and the limiting baffles are disposed on both sides of the second piston.
7. The semi-active air pressure inertia volume-hydraulic damping combined anti-galloping energy dissipation device of any one of claims 1 to 6, wherein the cross-sectional area of the intermediate cavity is larger than that of the functional cavity, and the cross-sectional area of the intermediate cavity is 1.5 to 2 times that of the functional cavity.
8. The semi-active air pressure inertial capacitance-hydraulic damping combined anti-galloping energy consumption device according to claim 1, wherein generators are arranged at two ends of the rotating rod, storage batteries are fixedly connected to two ends of the inner cylinder, an energizing coil is wound on the outer wall of the inner cylinder, the energizing coil is wound outside a flow-resisting chamber, a fuse is arranged on the outer wall of the inner cylinder, a rectifier is connected to one side of the fuse, a controller and a switch are arranged on one side of the rectifier, an air pressure sensor is arranged on one side of the first baffle, the generators, the fuse, the rectifier, the air pressure sensor, the controller, the switch and the storage batteries are electrically connected, the generators and the storage batteries are connected with the controller, the air pressure sensor and the energizing coil in parallel, and the flow-resisting liquid is magnetorheological fluid.
9. The semi-active air pressure inerter-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 8, wherein an insulator is disposed at one end of the connecting arm, the wire clip is connected to one end of the insulator, and the outer cylinder is made of an insulating material.
10. The semi-active air pressure inertia volume-hydraulic damping combined anti-galloping energy dissipation device as claimed in claim 1, wherein the first and second baffles are provided with rubber sealing rings on one side to prevent the liquid of choked flow from overflowing, and the inner wall of the inner cylinder and the inner and outer walls of the spacer sleeve are coated with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111532453.5A CN114498515B (en) | 2021-12-15 | 2021-12-15 | Semi-active pneumatic inertial volume-hydraulic damping combined type anti-galloping energy consumption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111532453.5A CN114498515B (en) | 2021-12-15 | 2021-12-15 | Semi-active pneumatic inertial volume-hydraulic damping combined type anti-galloping energy consumption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114498515A true CN114498515A (en) | 2022-05-13 |
| CN114498515B CN114498515B (en) | 2023-11-17 |
Family
ID=81493115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111532453.5A Active CN114498515B (en) | 2021-12-15 | 2021-12-15 | Semi-active pneumatic inertial volume-hydraulic damping combined type anti-galloping energy consumption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114498515B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110055212A (en) * | 2009-11-19 | 2011-05-25 | 알엠에스테크놀러지(주) | Vibration isolation mount using mr damper having magnetic and electro-magnetic shielding device |
| CN107800098A (en) * | 2017-12-01 | 2018-03-13 | 绍兴大明电力设计院有限公司 | A kind of hanging type transmission line of electricity Anti-galloping device |
| CN108458036A (en) * | 2018-04-23 | 2018-08-28 | 东北大学 | A kind of damper |
| CN208862535U (en) * | 2018-09-25 | 2019-05-14 | 西安工程大学 | A kind of conducting wire anti-dance intelligent link fitting based on magnetic damping |
| CN112963488A (en) * | 2021-03-27 | 2021-06-15 | 同济大学 | Inertial capacity energy consumption and efficiency increasing device |
| CN113775071A (en) * | 2021-09-16 | 2021-12-10 | 山东大学 | Multifunctional shock absorber with energy recovery function |
-
2021
- 2021-12-15 CN CN202111532453.5A patent/CN114498515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110055212A (en) * | 2009-11-19 | 2011-05-25 | 알엠에스테크놀러지(주) | Vibration isolation mount using mr damper having magnetic and electro-magnetic shielding device |
| CN107800098A (en) * | 2017-12-01 | 2018-03-13 | 绍兴大明电力设计院有限公司 | A kind of hanging type transmission line of electricity Anti-galloping device |
| CN108458036A (en) * | 2018-04-23 | 2018-08-28 | 东北大学 | A kind of damper |
| CN208862535U (en) * | 2018-09-25 | 2019-05-14 | 西安工程大学 | A kind of conducting wire anti-dance intelligent link fitting based on magnetic damping |
| CN112963488A (en) * | 2021-03-27 | 2021-06-15 | 同济大学 | Inertial capacity energy consumption and efficiency increasing device |
| CN113775071A (en) * | 2021-09-16 | 2021-12-10 | 山东大学 | Multifunctional shock absorber with energy recovery function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114498515B (en) | 2023-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104976266A (en) | Fluid electric energy feedback type semi-active control shock absorber system | |
| CN205185772U (en) | Electromagnetism is presented can formula vehicle initiative suspension actuator | |
| CN109027115A (en) | A kind of generator damper | |
| CN106051023A (en) | Magnetorheological shock absorber suitable for overhead power transmission line | |
| CN114498515A (en) | Semi-active air pressure inertial volume-hydraulic damping combined type anti-galloping energy consumption device | |
| CN109899437A (en) | Vibration energy regeneration type magneto-rheological vibration damper | |
| CN201325564Y (en) | Following pantograph head of electric locomotive high-speed pantograph | |
| CN208010835U (en) | A kind of shearing-type fluid linking damper | |
| CN111834969A (en) | Floating shock absorber with rigidity | |
| CN206759010U (en) | A kind of current vortex power consumption damper | |
| CN102340119A (en) | Structure for preventing flashover of power transmission circuit by windage yaw | |
| CN108916296A (en) | A kind of converter valve valve hall | |
| CN202384725U (en) | Structure for preventing windage yaw flashover of power transmission line | |
| CN211930417U (en) | Three-phase asynchronous motor with adjustable base | |
| CN213424732U (en) | Long-rod-shaped porcelain insulator for overhead line | |
| CN210297205U (en) | Transmission line shock mounting | |
| CN210686828U (en) | Fan shock absorber based on magneto-rheological effect | |
| CN209703279U (en) | A kind of current vortex metal damper of multiple damping energy consumption | |
| CN114614428A (en) | Anti-channeling shock-absorbing device of power transmission line | |
| CN207896849U (en) | A kind of hull shock-absorbing generation device based on electromagnetic damping | |
| CN114566931B (en) | Self-adaptive combined type broadband anti-galloping energy consumption device | |
| CN211654445U (en) | Insulator with damping device | |
| CN212004074U (en) | Be applied to rubber bush of new energy automobile bumper shock absorber | |
| CN217871119U (en) | Low-wind-resistance parameter-adjustable tuned mass damper | |
| CN114908663B (en) | Highway bridge vibration/noise reduction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |