CN113968545A - Building tower crane shaking damping device - Google Patents
Building tower crane shaking damping device Download PDFInfo
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- CN113968545A CN113968545A CN202111050030.XA CN202111050030A CN113968545A CN 113968545 A CN113968545 A CN 113968545A CN 202111050030 A CN202111050030 A CN 202111050030A CN 113968545 A CN113968545 A CN 113968545A
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- tower crane
- permanent magnet
- damping device
- fixing plate
- electromagnet
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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims 1
- 239000004035 construction material Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
- B66C13/063—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention belongs to the technical field of building construction equipment, and provides a building tower crane shaking damping device which comprises an installation frame body used for being installed at the tail end of a tower crane balance arm, wherein a balancing weight driven by a driving device is installed on the installation frame body in a sliding manner along the horizontal direction, a permanent magnet is installed in the balancing weight in a sliding manner along the vertical direction, an elastic resetting piece is arranged below the permanent magnet, an electromagnet is arranged at the top of the balancing weight, and the electromagnet is positioned above the permanent magnet and corresponds to the permanent magnet; the building tower crane shaking damping device further comprises a control system for realizing control of the driving device and the electromagnet. According to the tower crane, the mounting frame body is mounted on the balance arm of the tower crane, so that the tower crane has a good damping function, the gravity is ensured to fall on the tower body all the time in the process of hoisting the construction materials, the shaking of the tower crane can be effectively counteracted, the safety of the hoisting operation of the construction materials is guaranteed, the hoisting operation is easier, and the tower crane is strong in practicability.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a building tower crane shaking damping device.
Background
The tower crane is the most common and indispensable hoisting equipment on the construction site, and is also called a tower crane, which is lengthened (high) section by section (called as a standard section for short) and used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction and conveying the raw materials to a specified height and position.
In order to ensure the stability of the existing building tower crane, a balance weight is generally arranged at the tail part of a balance arm of the existing building tower crane by utilizing a lever principle, so that the gravity center of the existing building tower crane is ensured to fall onto a middle tower body, and the stability is realized; but because the balancing weight is fixed at the tower crane balance arm afterbody, in the in-service work, when lifting by crane construction materials, lift by crane the end and can aggravate, and in-process lifting by crane with higher speed or braking, all can lead to tower crane top and body of the tower to produce the swing of certain range or rock, in addition, the effect of wind-load, impact load etc. also can lead to rocking of tower crane, influences tower crane stability, has great potential safety hazard, has increased the degree of difficulty of controlling to the tower crane simultaneously. Therefore, the development of the building tower crane shaking damping device has urgent research value, and also has good economic benefit and industrial application potential, which are the basis of the power completed by the invention.
Disclosure of Invention
The present inventors have conducted intensive studies to overcome the above-identified drawbacks of the prior art, and as a result, have completed the present invention after having made a great deal of creative efforts.
Specifically, the technical problems to be solved by the present invention are: the utility model provides a damping device is rocked to building tower crane to solve the mode that present balancing weight is fixed in tower crane balance arm afterbody, can't effectively offset and rock because of the tower crane that lifts by crane or external factors lead to, and then have the potential safety hazard and control the big technical problem of the degree of difficulty.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a damping device for shaking of a building tower crane comprises an installation frame body used for being installed at the tail end of a balance arm of the tower crane, wherein a balancing weight driven by a driving device is installed on the installation frame body in a sliding mode along the horizontal direction, a permanent magnet is installed in the balancing weight in a sliding mode along the vertical direction, an elastic resetting piece is arranged below the permanent magnet, an electromagnet is arranged at the top of the balancing weight, and the electromagnet is located above the permanent magnet and corresponds to the permanent magnet;
the control system is used for realizing the control of the driving device and the electromagnet.
As an improved technical scheme, the mounting frame body comprises a horizontal fixing plate and a vertical fixing plate, a plurality of mounting plates are arranged on two sides of the horizontal fixing plate, and the vertical fixing plate is positioned at one end of the horizontal fixing plate and is integrally formed with the horizontal fixing plate;
the balancing weight is slidably mounted at the bottom of the horizontal fixed plate through a counterweight connecting mechanism, and the driving device is arranged on the vertical fixed plate.
As an improved technical scheme, the counterweight connecting mechanism comprises an upper connecting plate, a lower connecting plate and pulleys, the upper connecting plate is fixedly installed on the bottom surface of the horizontal fixing plate, two sliding grooves are formed in the upper connecting plate along the length direction of the upper connecting plate, the pulleys are respectively rotatably installed on two sides of the top of the lower connecting plate and respectively arranged in the sliding grooves in a rolling mode, the lower connecting plate is slidably installed on the upper connecting plate through the pulleys and the sliding grooves, and the counterweight is fixedly installed on the lower connecting plate.
As an improved technical scheme, the driving device comprises a driving motor fixedly installed on the vertical fixing plate, a screw rod arranged in parallel with the sliding groove is further rotatably installed on the vertical fixing plate, one end of the screw rod is in transmission connection with an output shaft of the driving motor, and the bottom of the balancing weight is in threaded fit connection with the screw rod.
As an improved technical scheme, the vertical fixing plate is further fixedly provided with a motor protecting shell for covering the driving motor, and one end, far away from the driving motor, of the screw rod is fixedly provided with a limiting baffle.
As an improved technical scheme, a mounting groove has in the counter weight piece, be equipped with a fly leaf in the mounting groove, the fly leaf in along the spacing slip of vertical direction in the mounting groove, the permanent magnet is fixed inlay adorn in the fly leaf, elasticity resets and is compression spring, compression spring in set up in the mounting groove, just compression spring's both ends are supported respectively and are leaned on the tank bottom of mounting groove with the bottom surface setting of fly leaf.
As an improved technical scheme, the control system comprises a motion signal generator and a current controller, the motion signal generator is mounted on an amplitude variation trolley of a tower crane boom, a current output end of the motion signal generator is connected with a current input end of the driving motor, the current controller is mounted on the mounting frame body, a current input end of the current controller is connected with a current input end of a tower crane winch, and a current output end of the current controller is connected with the electromagnet.
As an improved technical scheme, the top of the balancing weight is provided with a lead hole which is arranged corresponding to the electromagnet.
After the technical scheme is adopted, the invention has the beneficial effects that:
the damping device for the shaking of the building tower crane is arranged on a balance arm of the tower crane by utilizing the installation frame body, when a construction material is lifted, the real-time monitoring of the amplitude variation trolley is realized by the motion signal generator and is fed back to the driving motor, the driving motor works to drive the counter weight block to displace along the direction close to or far away from a tower crane boom, and according to the lever principle, the counter weight block realizes the force arm adjustment along with the lifted construction material in the whole lifting process, so that the gravity always falls on a tower body in the lifting process, and the potential safety hazard possibly existing in the unbalance of the stress of the tower crane is effectively avoided; in addition, when construction materials hoisted or when the tower crane rocked because of the influence of external environments such as strong wind, the work of the electromagnet is controlled by the current controller, the up-and-down motion of the movable plate and the permanent magnet in the vertical direction is realized, and then the whole counterweight part has the trend of shaking up and down, the rocking generated by the tower crane can be offset, an effective damping effect is played, the size of current is introduced through the control electromagnet, the control of the amplitude size can be realized, the rocking of different degrees of the tower crane is offset, and the damping effect is good. Rock damping device through this building tower crane for the tower crane has good damping function, can effectively overcome the tower crane and rock, makes the hoist and mount operation safety to construction material secure, and it is easier to hoist and mount, and the practicality is strong.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the counterweight connecting mechanism of the present invention;
reference numerals: 1, mounting a frame body; 101-horizontal fixed plate; 102-vertical fixing plate; 103-a mounting plate; 2-an upper connecting plate; 201-a chute; 3-a lower connecting plate; 4-a pulley; 5-a balancing weight; 501-mounting grooves; 502-a wire hole; 6-driving a motor; 7-a screw; 8, a motor protective shell; 9-a limit baffle; 10-a movable plate; 11-a permanent magnet; 12-a compression spring; 13-an electromagnet.
Detailed Description
The invention is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
As shown in fig. 1 and fig. 2, the embodiment provides a damping device for shaking of a building tower crane, which includes an installation frame body 1 for installing at the tail end of a balance arm of the tower crane, a counterweight 5 driven by a driving device is installed on the installation frame body 1 in a sliding manner along the horizontal direction, a permanent magnet 11 is installed in the counterweight 5 in a sliding manner along the vertical direction, an elastic reset piece is arranged below the permanent magnet 11, an electromagnet 13 is arranged at the top of the counterweight 5, and the electromagnet 13 is located above the permanent magnet 11 and corresponds to the permanent magnet 11; the slosh damping device also includes a control system to effect control of the drive means and the electromagnet 13.
The mounting frame body 1 comprises a horizontal fixing plate 101 and a vertical fixing plate 102, wherein a plurality of mounting plates 103 are arranged on two sides of the horizontal fixing plate 101, and the vertical fixing plate 102 is positioned at one end of the horizontal fixing plate 101 and is integrally formed with the horizontal fixing plate 101; in this embodiment, the interval of horizontal fixed plate 101 both sides mounting panel 103 and tower crane balance arm tail width looks adaptation for realize the fixed mounting of installation support body 1 in tower crane balance arm counter weight end.
In this embodiment, the counterweight 5 is slidably mounted at the bottom of the horizontal fixing plate 101 through a counterweight connecting mechanism, and the driving device is disposed on the vertical fixing plate 102.
Counter weight connecting mechanism includes upper junction plate 2, lower junction plate 3 and pulley 4, and 2 fixed mounting of upper junction plate have in horizontal fixed plate 101 bottom surface, and two spouts 201 have been seted up along its length direction to upper junction plate 2, and pulley 4 rotates respectively and installs in the top both sides of lower junction plate 3 to roll the setting in spout 201 respectively, and lower junction plate 3 passes through pulley 4 and spout 201 slidable mounting on upper junction plate 2, and 5 fixed mounting of balancing weight are on lower junction plate 3.
In this embodiment, the upper connecting plate 2 is fixedly connected to the horizontal fixing plate 101 by a bolt, and the top of the counterweight 5 is fixedly connected to the lower connecting plate 3 by a bolt.
The driving device comprises a driving motor 6 fixedly installed on a vertical fixing plate 102, a screw 7 arranged in parallel with the sliding groove 201 is further installed on the vertical fixing plate 102 in a rotating mode through a bearing, one end of the screw 7 is in transmission connection with an output shaft of the driving motor 6 through a coupler, the bottom of the balancing weight 5 is in threaded fit connection with the screw 7, the driving motor 6 works to drive the screw 7 to rotate forwards or backwards, and therefore reciprocating sliding of the balancing weight 5 is achieved.
In this embodiment, the motor protective shell 8 covering the driving motor 6 is further fixedly mounted on the vertical fixing plate 102, so that effective dust prevention of the driving motor 6 is realized.
In this embodiment, the one end fixed mounting that driving motor 6 was kept away from to screw rod 7 has limit baffle 9, and limit baffle 9 plays spacing effect of blockking, avoids 5 slippage of balancing weight.
In this embodiment, the counterweight block 5 has a mounting groove 501 therein, a movable plate 10 is disposed in the mounting groove 501, the movable plate 10 slides in the mounting groove 501 in a limited manner along a vertical direction, the permanent magnet 11 is fixedly embedded in the movable plate 10, the elastic restoring member is a compression spring 12, the compression spring 12 is disposed in the mounting groove 501, and two ends of the compression spring 12 respectively abut against the bottom of the mounting groove 501 and the bottom of the movable plate 10; the electromagnet 13 is electrified to work to generate a magnetic pole the same as the upper surface of the permanent magnet 11, the permanent magnet 11 is pushed to move downwards, the movable plate 10 compresses the compression spring 12, the electromagnet 13 is powered off, and the movable plate 10 is pushed to ascend and reset under the action of the compression spring 12, so that the movable plate 10 and the permanent magnet 11 inside the movable plate reciprocate up and down, and the whole counterweight part is driven to shake.
The control system comprises a motion signal generator, the motion signal generator is arranged on a variable amplitude trolley of the tower crane boom, a current output end of the motion signal generator is connected with a current input end of a driving motor 6, when the construction material is hoisted, the variable amplitude trolley of the tower crane moves, the motion signal generator feeds back a signal to the driving motor 6, the driving motor 6 drives a balancing weight 5 to move, the farther the variable amplitude trolley slides on the boom, the farther the balancing weight 5 moves in a reverse direction on a balance arm, so that the opposite or reverse synchronous displacement of the balancing weight 5 and the variable amplitude trolley is realized, and the balance of the tower crane is maintained.
The control system further comprises a current controller, the current controller is installed on the installation frame body 1, the current input end of the current controller is connected with the current input end of the tower crane winch, the current output end of the current controller is connected with the electromagnet 13, the tower crane winch works, the electromagnet 13 is electrified to work, and shaking generated in the process of tower crane hoisting operation is counteracted.
In this embodiment, a lead hole 502 corresponding to the electromagnet 13 is formed at the top of the counterweight 5, and a lead is inserted through the lead hole 502, so that the coil of the electromagnet 13 is conveniently connected to the current controller.
The damping device for the shaking of the building tower crane based on the structure is characterized in that the mounting frame body 1 is mounted on a balance arm of the tower crane, when a construction material is lifted, the amplitude-variable trolley is monitored in real time through the motion signal generator and fed back to the driving motor 6, the driving motor 6 works to drive the counterweight block 5 to displace in the direction close to or far away from a tower crane boom, and according to the lever principle, the counterweight block 5 realizes the force arm adjustment along with the lifted construction material in the whole lifting process, so that the gravity always falls on a tower body in the lifting process, and the potential safety hazard possibly existing in the unbalance of the tower crane stress is effectively avoided; in addition, when construction materials hoisted or lead to the tower crane to rock because of external environment influences such as strong wind, work by current controller control electro-magnet 13, realize fly leaf 10 and permanent magnet 11 up-and-down motion in vertical side, and then make whole counter weight part have the trend of shake from top to bottom, can offset rocking that the tower crane produced, play effectual damping effect, and let in the size of electric current through control electro-magnet 13, can realize the control of amplitude size, in order to offset rocking of the different degrees of tower crane, damping effect is good. Rock damping device through this building tower crane for the tower crane has good damping function, can effectively offset the tower crane and rock, makes the hoist and mount operation safety to construction material secure, and it is easier to hoist and mount, and the practicality is strong.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (8)
1. The utility model provides a damping device is rocked to building tower crane, includes the installation support body that is used for installing in tower crane balance arm tail end, its characterized in that: a counterweight block driven by a driving device is installed on the installation frame body in a sliding mode along the horizontal direction, a permanent magnet is installed in the counterweight block in a sliding mode along the vertical direction, an elastic reset piece is arranged below the permanent magnet, an electromagnet is arranged at the top of the counterweight block, and the electromagnet is located above the permanent magnet and corresponds to the permanent magnet;
the control system is used for realizing the control of the driving device and the electromagnet.
2. The building tower crane sway damping device of claim 1, characterized in that: the mounting frame body comprises a horizontal fixing plate and a vertical fixing plate, a plurality of mounting plates are arranged on two sides of the horizontal fixing plate, and the vertical fixing plate is located at one end of the horizontal fixing plate and is integrally formed with the horizontal fixing plate;
the balancing weight is slidably mounted at the bottom of the horizontal fixed plate through a counterweight connecting mechanism, and the driving device is arranged on the vertical fixed plate.
3. The building tower crane sway damping device of claim 2, wherein: the counterweight connecting mechanism comprises an upper connecting plate, a lower connecting plate and pulleys, the upper connecting plate is fixedly installed on the bottom surface of the horizontal fixed plate, two sliding grooves are formed in the upper connecting plate along the length direction of the upper connecting plate, the pulleys are respectively rotatably installed on two sides of the top of the lower connecting plate and respectively roll in the sliding grooves, the lower connecting plate is slidably installed on the upper connecting plate through the pulleys and the sliding grooves, and the counterweight is fixedly installed on the lower connecting plate.
4. The building tower crane sway damping device of claim 3, wherein: the driving device comprises a driving motor fixedly installed on the vertical fixing plate, a screw rod parallel to the sliding groove is further rotatably installed on the vertical fixing plate, one end of the screw rod is in transmission connection with an output shaft of the driving motor, and the bottom of the balancing weight is in threaded fit connection with the screw rod.
5. The building tower crane sway damping device of claim 4, wherein: the vertical fixing plate is further fixedly provided with a motor protecting shell for covering the driving motor, and one end, far away from the driving motor, of the screw rod is fixedly provided with a limiting baffle.
6. The building tower crane sway damping device of claim 5, characterized in that: the utility model discloses a portable electric shock absorber, including counterweight block, mounting groove, fly leaf, permanent magnet, elasticity reset piece, compression spring, and compression spring, the counterweight block has a mounting groove in, be equipped with a fly leaf in the mounting groove, the fly leaf in along the spacing slip of vertical direction in the mounting groove, the permanent magnet is fixed to be inlayed and is adorned in the fly leaf, elasticity reset piece is compression spring, compression spring in set up in the mounting groove, just compression spring's both ends are supported respectively and are leaned on the tank bottom of mounting groove with the bottom surface setting of fly leaf.
7. The building tower crane sway damping device of claim 6, wherein: the control system comprises a motion signal generator and a current controller, the motion signal generator is mounted on a variable amplitude trolley of a tower crane boom, a current output end of the motion signal generator is connected with a current input end of the driving motor, the current controller is mounted on the mounting frame body, a current input end of the current controller is connected with a current input end of a tower crane winch, and a current output end of the current controller is connected with the electromagnet.
8. The building tower crane sway damping device of claim 7, wherein: and the top of the balancing weight is provided with a lead hole which is arranged corresponding to the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050030.XA CN113968545A (en) | 2021-09-08 | 2021-09-08 | Building tower crane shaking damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050030.XA CN113968545A (en) | 2021-09-08 | 2021-09-08 | Building tower crane shaking damping device |
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| Publication Number | Publication Date |
|---|---|
| CN113968545A true CN113968545A (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111050030.XA Pending CN113968545A (en) | 2021-09-08 | 2021-09-08 | Building tower crane shaking damping device |
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| CN (1) | CN113968545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857208A (en) * | 2022-06-11 | 2022-08-05 | 上海建工一建集团有限公司 | Active damping system for tower crane |
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2021
- 2021-09-08 CN CN202111050030.XA patent/CN113968545A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857208A (en) * | 2022-06-11 | 2022-08-05 | 上海建工一建集团有限公司 | Active damping system for tower crane |
| CN114857208B (en) * | 2022-06-11 | 2023-11-14 | 上海建工一建集团有限公司 | Active damping system for tower crane |
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Application publication date: 20220125 |