CN114857208A - Active damping system for tower crane - Google Patents
Active damping system for tower crane Download PDFInfo
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- CN114857208A CN114857208A CN202210656091.9A CN202210656091A CN114857208A CN 114857208 A CN114857208 A CN 114857208A CN 202210656091 A CN202210656091 A CN 202210656091A CN 114857208 A CN114857208 A CN 114857208A
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- tower crane
- solution tank
- mounting platform
- damping system
- electromagnetic coil
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- 238000013016 damping Methods 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000035939 shock Effects 0.000 claims abstract description 10
- 238000000151 deposition Methods 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 230000001737 promoting effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 87
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
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- 210000000245 forearm Anatomy 0.000 description 1
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Classifications
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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
- F16F15/035—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 by use of eddy or induced-current damping
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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
- B66C23/16—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 with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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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
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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
- F16F15/04—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 elastic means
- F16F15/06—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 elastic means with metal springs
- F16F15/067—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 elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application discloses tower crane is with initiative shock attenuation damping system relates to tower crane shock-absorbing technology's field, and its mounting platform that includes the level setting, mounting platform installs in the upside part of tower crane, the last fixed interception frame that is provided with of mounting platform, interception frame middle part cavity sets up and is formed with the place space, be provided with the solution tank that is used for depositing liquid medium in the place space, solution tank upside part has been seted up and has been annotated the liquid mouth, just the outer wall and the interception frame inside wall interval of solution tank set up, all the week side outer walls of solution tank all with the interception frame between support tightly be provided with the elastic component. This application has the tower crane altitude variation after can promoting the advantage to tower crane absorbing effect.
Description
Technical Field
The application relates to the field of tower crane damping technology, in particular to an active damping system for a tower crane.
Background
The tower crane is the most common hoisting equipment in construction sites, and is also called a tower crane, which is assembled by a section-by-section frame structure and used for hoisting raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. The tower crane base is arranged on the ground, the building gradually increases along with the construction, and the tower crane also needs to increase a frame structure to climb; and the tower crane base is arranged on the uppermost layer of the constructed part of the building, and the tower crane climbs along with the increase of the construction of the building and is always positioned on the uppermost layer of the constructed part of the building.
Among the correlation technique, a damping device for tower crane, including horizontal installation slide bar on the tower crane cantilever, slide on the slide bar and be provided with the balancing weight, the both sides that the balancing weight is relative all collude between the both ends with the slide bar respectively and are linked with the extension spring. When the tower crane vibrates (the vibration of the tower crane is generally the vibration generated by equipment operation, the vibration of the tower crane is conducted by building material shaking when the building material is lifted, the vibration caused by earthquake and the like), the vibration of the tower crane is conducted to the balancing weight, and the balancing weight slides along the sliding rod; when the motion of balancing weight is opposite with the vibration direction of tower crane, will provide damping force to the tower crane along the axial vibration of slide bar to reduce the amplitude of tower crane, in order to guarantee the security of tower crane.
Aiming at the related technologies, the inventor considers that the mass of the balancing weight in the damping device for the tower crane is fixed, and the damping effect on the tower crane is weaker and weaker along with the increase of the height of the tower crane, so that the improvement is required.
Disclosure of Invention
In order to improve the situation that the damping effect of the damping device for the tower crane is weaker and weaker along with the gradual climbing of the tower crane in the related art, the application provides an active damping system for the tower crane.
The application provides a pair of tower crane is with initiative shock attenuation damping system adopts following technical scheme:
the utility model provides a tower crane is with initiative shock attenuation damping system, includes the mounting platform of level setting, mounting platform installs in the upside part of tower crane, the fixed interception frame that is provided with on mounting platform, interception frame middle part cavity sets up and is formed with the space of placing, be provided with the solution tank that is used for depositing liquid medium in the space of placing, solution tank upside part has been seted up and has been annotated the liquid mouth, just the outer wall and the interception frame inside wall interval of solution tank set up, it is provided with the elastic component to support tightly between the week lateral wall of solution tank and the interception frame.
By adopting the technical scheme, when the tower crane vibrates, the solution tank and the solution in the solution tank jointly form the swinging block positioned in the placing space, the vibration of the tower crane can be transmitted to the solution tank, and the solution tank can swing back and forth under the cooperation of the elastic part; when the swing of the solution tank is opposite to the vibration of the tower crane, the solution tank provides damping force for the vibration of the tower crane through the mounting platform and the elastic piece. When the height of tower crane increased, the staff can pour into liquid medium into the solution tank through annotating the liquid mouth, promoted the quality of solution tank. By the mode, the damping effect of the active damping system on the tower crane after the tower crane height changes is improved.
Preferably, the intercepting frame is fixedly provided with a top frame at the upper side of the solution tank, the lower side of the top frame is provided with an upper electromagnetic coil, and the upper side surface of the solution tank is fixedly provided with an upper conductor plate for cutting the magnetic field generated by the upper electromagnetic coil.
By adopting the technical scheme, when the upper electromagnetic coil is electrified, the upper electromagnetic coil generates a magnetic field, and the magnetic field lines are cut when the upper electromagnetic coil moves in the magnetic field, so that the magnetic flux passing through the upper conductor plate is changed. According to the Faraday's law of electromagnetic induction, induced electromotive force is generated in the conductor, so that eddy current is formed, and the eddy current is stressed in the magnetic field to block the conductor from moving in the magnetic field. In the scheme, the viscous action exists between the electrified upper electromagnetic coil and the solution tank (the upper conductor plate is fixed on the solution tank), so that when the tower crane is impacted by strong vibration, the damping of the tower crane by the solution tank is increased by the viscous action, the upper conductor plate moves relative to the upper electromagnetic coil, and the mechanical energy of the relative movement is converted into resistance heat generated in a conductor by current, so that the occurrence of the condition that the horizontal displacement of the tower crane is overlarge is reduced, the damping effect of the tower crane is further improved, the resistance heat of the upper conductor plate is cooled by the solution tank, and the stability of the damping system in long-time operation is ensured.
Preferably, a sliding support is fixedly arranged on the mounting platform, a sliding plane is formed on the upper side of the sliding support, a lower electromagnetic coil is further arranged on the lower side of the mounting platform, a lower conductor plate used for cutting the magnetic field emitted by the lower electromagnetic coil is fixedly arranged on the lower side of the solution tank, and the lower conductor plate is abutted to the sliding plane and is in sliding fit with the sliding plane.
Through adopting above-mentioned technical scheme, when the tower crane vibration, lower solenoid and lower conductor board cooperation exist the viscous action between lower solenoid after the circular telegram and solution tank (the conductor board is fixed on the solution tank down), and this kind of viscous action will increase the damping of solution tank to the tower crane to further reduce the too big condition of tower crane horizontal displacement and take place, promote the shock attenuation effect to the tower crane.
Preferably, the device also comprises a seismic acquisition unit configured for acquiring seismic amplitude signals;
the processing unit is in signal connection with the seismic acquisition unit, receives the amplitude signal and generates a control signal;
and the control unit is in signal connection with the processing unit, receives and responds to the control signal and controls the electrifying states of the upper electromagnetic coil and the lower electromagnetic coil.
By adopting the technical scheme, in practical application, the earthquake grade information is acquired by the earthquake acquisition unit and transmitted to the processing unit; then, the control unit controls the upper electromagnetic coil and the lower electromagnetic coil to be electrified according to the low grade corresponding to the earthquake, and increases the damping force for blocking the relative motion between the solution tank and the mounting platform, thereby being beneficial to improving the applicability of the active damping system for the tower crane to the tower crane in various different vibration states and ensuring the effect of damping the vibration of the tower crane.
Preferably, the system further comprises a liquid storage tank and a supply water pump, wherein the liquid storage tank is installed at the lower position of the tower crane or on a construction building, and the supply water pump extracts the liquid medium in the liquid storage tank and supplies the liquid medium to the solution tank.
Through adopting above-mentioned technical scheme, along with the increase of tower crane height, promote the quality of solution tank in to the solution tank by the solution of water pump extraction liquid reserve tank to help promoting the convenience of injecting solution to the solution tank.
Preferably, sliding support includes fixed plate, elasticity post and butt plate, the fixed plate is fixed on mounting platform, the elasticity post is vertical to be fixed on the fixed plate, just the butt plate is fixed in the upper end of elasticity post and butt in the downside of solution tank.
Through adopting above-mentioned technical scheme, the vibration of tower crane includes along the vibration of vertical direction, and it will drive the solution tank and fluctuate, cushions the fluctuation of solution tank by the elasticity of elasticity post for the butt joint board contacts in the solution tank all the time, thereby stability when helping promoting the solution tank displacement.
Preferably, the elastic component is a compression spring, the interception frame is arranged at a position, where the compression spring deviates from one end of the solution tank, of the interception frame and is provided with a baffle in a sliding mode along the compression direction of the compression spring, and a driving component used for driving the baffle to slide is further arranged on the interception frame.
Through adopting above-mentioned technical scheme, in the actual application, the staff can promote the baffle by the driving piece according to the height of tower crane and slide, relaxs compression spring or compresses tightly compression spring to adjust the elastic force of elastic component to the solution tank, thereby further promote this tower crane with the suitability of initiative shock attenuation damping system to multiple not co-altitude tower crane.
Preferably, the driving piece is a screw rod, the screw rod is rotatably erected on the intercepting frame, the axial direction of the screw rod is parallel to the sliding direction of the baffle, and the screw rod penetrates through the baffle and is in threaded connection with the baffle.
Through adopting above-mentioned technical scheme, in the practical application, rotate the position that the lead screw can the adjusting stop, stop the rotation to the lead screw, the baffle stops promptly and is in stable state to help promoting the convenience to baffle position control.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the cooperation of the solution tank arranged on the mounting platform and the elastic piece is beneficial to improving the shock absorption effect of the active shock absorption damping system on the tower crane after the height of the tower crane is changed;
2. by means of the cooperation of the upper electromagnetic coil and the upper conductor plate and the cooperation of the lower electromagnetic coil and the lower conductor plate, the occurrence of the condition that the horizontal displacement of the tower crane is overlarge is reduced, the damping effect on the tower crane is further improved, the resistance heat of the upper conductor plate and the resistance heat of the lower conductor plate are cooled by the solution tank, and the stability of long-time operation of the active damping system for the tower crane is ensured.
Drawings
FIG. 1 is a front view of the overall structure of the active damping system for a tower crane according to the present embodiment;
FIG. 2 is a schematic view of the present embodiment mainly showing the structure of the mounting platform and the solution tank;
fig. 3 is an enlarged view of a part a of fig. 2, mainly showing the structure of the sliding support.
Reference numerals: 1. mounting a platform; 2. an intercepting frame; 21. a placement space; 22. intercepting columns; 221. a chute; 222. a baffle plate; 223. a screw rod; 23. a top frame; 3. a solution tank; 4. a compression spring; 5. a liquid injection assembly; 51. a liquid storage tank; 52. a feed water pump; 6. an electromagnetic damping assembly; 61. an upper electromagnetic coil; 62. an upper conductor plate; 63. a lower electromagnetic coil; 64. a lower conductor plate; 7. a sliding support; 71. a fixing plate; 72. an elastic column; 73. abutting against the board.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Among the correlation technique, the tower crane includes the grudging post and sets up the cantilever at the grudging post upside, and the cantilever includes the hoist and mount arm of hoist and mount building materials one side and the counter weight arm that sets up relatively the forearm.
The embodiment of the application discloses tower crane is with initiative shock attenuation damping system.
Referring to fig. 1 and 2, the active damping system for the tower crane comprises a mounting platform 1, wherein the mounting platform 1 is fixedly mounted at the upper side position of one side, close to the stand, of the counterweight arm of the tower crane. Mounting platform 1 is the level setting, and mounting platform 1's the fixed interception frame 2 that is provided with of side of going up, and interception frame 2 middle part cavity sets up and is formed with and places space 21, places and is provided with solution tank 3 in the space 21, and 3 outer walls of solution tank set up with the inboard interval of interception frame 2, and the outer wall of solution tank 3 supports tightly with 2 inboards of interception frame and is provided with the elastic component. Meanwhile, a liquid injection port is formed in the upper side of the solution tank 3, the liquid injection port is communicated with a liquid injection assembly 5, and an electromagnetic damping assembly 6 used for generating a viscous action between the mounting platform 1 and the solution tank 3 is further arranged on the mounting platform 1.
In the actual application, can be according to the height of tower crane, by annotating liquid subassembly 5 to inwards pouring into water liquid to the solution. When the tower crane vibrates, the vibration of tower crane will be conducted to solution tank 3, and under the cooperation of elastic component, solution tank 3 will reciprocal swing, and the water liquid in solution tank 3 will be relative solution tank 3 reciprocating motion, simultaneously, by electromagnetism damping subassembly 6 to producing viscous effect between mounting platform 1 and the solution tank 3 to provide great damping force to the tower crane, promote this initiative damping system to the absorbing effect of tower crane.
Specifically, referring to fig. 2 and 3, the upper side of the mounting platform 1 is square, the intercepting frame 2 includes intercepting columns 22, the intercepting columns 22 are vertically disposed, the lower ends of the intercepting columns 22 are fixed at the side positions of the upper side of the mounting platform 1, and two intercepting columns 22 are disposed at intervals along the corresponding sides at the four side positions of the upper side of the mounting platform 1. The upper side and the lower side of the solution tank 3 are square, and four sides of the lower side of the solution tank 3 are respectively parallel to the sides of the upper side of the corresponding mounting platform 1. The elastic member is a compression spring 4, the compression spring 4 is tightly propped against between the interception column 22 and the side wall of the solution tank 3, and three compression springs 4 are arranged between each interception column 22 and the corresponding side wall of the solution tank 3 at intervals.
The mounting and construction of each compression spring 4 between the interception post 22 and the solution tank 3 are identical, and any one of the compression springs 4 will be explained as an example. The intercepting column 22 is provided with a sliding groove 221 along the axis of the compression spring 4, a baffle 222 is arranged in the sliding groove 221 in a sliding mode along the axial direction of the compression spring 4, a screw rod 223 is arranged on the intercepting column 22 in a rotating mode, the axis of the screw rod 223 is parallel to the sliding direction of the baffle 222, the screw rod 223 penetrates through the baffle 222 and is in threaded connection with the baffle 222, and a hand wheel is fixedly arranged at one end, away from the solution tank 3, of the screw rod 223. Meanwhile, the compression spring 4 is tightly pressed between the baffle 222 and the side wall of the solution tank 3, and one end of the compression spring 4, which is pressed against the baffle 222, is fixed with the baffle 222.
In the practical application, the staff can rotate lead screw 223 through the hand wheel according to the height of tower crane to the position of adjusting stop 222, and then adjust compression spring 4 to the elasticity size of solution tank 3, thereby change the damping to solution tank 3.
With continued reference to fig. 2 and 3, electromagnetic damping assembly 6 includes an upper electromagnetic coil 61 and an upper conductor plate 62. The intercepting frame 2 is fixedly provided with a top frame 23 at the upper side of the solution tank 3, a plurality of upper electromagnetic coils 61 are arranged at intervals at the lower side of the top frame 23, the upper electromagnetic coils 61 are all positioned right above the solution tank 3, and an upper conductor plate 62 is fixed at the upper side surface of the solution tank 3, wherein in the embodiment, the upper conductor plate 62 is a copper plate.
The fixed sliding support 7 that is provided with on mounting platform 1, sliding support 7 include fixed plate 71, elasticity post 72 and butt plate 73, and fixed plate 71 passes through the bolt fastening on mounting platform 1, and elasticity post 72 is the rubber column, and elasticity post 72 is vertical to be fixed on fixed plate 71, and butt plate 73 is fixed in the upper end of elasticity post 72, and the upside of butt plate 73 is formed with the plane of sliding. A plurality of sliding supports 7 are arranged on the upper side face of the mounting platform 1 at intervals, and the solution tank 3 is arranged on the sliding supports 7, so that the solution tank 3 is spaced from the mounting platform 1. The electromagnetic damping assembly 6 further comprises a lower electromagnetic coil 63 and a lower conductor plate 64. The lower electromagnetic coil 63 is fixed on the mounting platform 1 and is positioned right below the solution tank 3, and the lower conductive plate 64 is fixed on the lower side wall of the solution tank 3, wherein the lower conductive plate 64 is a copper plate in the embodiment.
The electromagnetic damping assembly 6 further comprises a seismic acquisition unit, a processing unit, and a control unit. The seismic acquisition unit may be a seismic sensor configured for acquiring seismic amplitude signals; the processing unit can be a PLC processor, is in signal connection with the seismic acquisition unit, receives the amplitude signal and generates a control signal. The control unit may be a PLC controller or a computer, and is in signal connection with the processing unit, receives and responds to the control signal and controls the energization state of the upper electromagnetic coil 61 and the lower electromagnetic coil 63.
In practical application, the earthquake acquisition unit acquires earthquake information, and the processing unit and the control unit control the electrifying state of the upper electromagnetic coil 61 and the lower electromagnetic coil 63, so that the upper electromagnetic coil 61 and the lower electromagnetic coil 63 generate magnetic fields, and the magnetic fields are matched with the upper conductor plate 62 and the lower conductor plate 64, so that the solution tank 3 generates a viscous state relative to the mounting platform 1 and the top frame 23, and the damping is provided for the movement of the solution tank 3; on the contrary, when the tower crane is damped, the solution tank 3 provides larger damping for the tower crane.
Next, referring to fig. 1, the liquid injection assembly 5 includes a liquid storage tank 51 and a feed water pump 52. In the present embodiment, the liquid storage tank 51 and the feed water pump 52 are installed in the construction building, or may be installed at a lower position of the tower crane, the water suction port of the feed water pump 52 is connected to a lower portion of the liquid storage tank 51 through a pipe, and the water discharge port of the feed water pump 52 is connected to the liquid injection port of the solution tank 3 through a pipe. Meanwhile, the lower side of the solution tank 3 can be communicated with a drain valve for draining water liquid in the solution tank 3. In the actual application, along with the rising of tower crane height, give solution tank 3 with water liquid by supply water pump 52 to increase solution tank 3's weight, and help guaranteeing the shock attenuation effect to the tower crane vibration.
The implementation principle of the active damping system for the tower crane in the embodiment of the application is as follows: in practical use, as the height of the tower crane increases, the water pump 52 feeds water into the solution tank 3, thereby increasing the weight of the solution tank 3. Meanwhile, the earthquake acquisition unit acquires earthquake information, and the processing unit and the control unit are matched to control the electrifying states of the upper electromagnetic coil 61 and the lower electromagnetic coil 63, so that the upper electromagnetic coil 61 and the lower electromagnetic coil 63 generate magnetic fields, and the magnetic fields are matched with the upper conductor plate 62 and the lower conductor plate 64, so that the solution tank 3 generates a viscous state relative to the mounting platform 1 and the top frame 23, and the damping is provided for the movement of the solution tank 3; on the contrary, when the tower crane is damped, the solution tank 3 provides larger damping for the tower crane.
When the tower crane vibrates, the vibration of the tower crane is transmitted to the solution tank 3, and the solution tank 3 swings back and forth. When the swing of the solution tank 3 is opposite to the vibration of the tower crane, the elastic piece, the upper electromagnetic coil 61 and the upper conductor plate 62 are matched, and the lower electromagnetic coil 63 and the lower conductor plate 64 are matched to provide damping force for the movement of the solution tank 3, otherwise, the solution tank 3 provides larger damping force for the vibration of the tower crane, and the damping effect of the active damping system on the tower crane is improved. When the tower crane vibration stops or weakens, the solution tank 3 is restored to the initial state of the middle part of the mounting platform 1 under the combined action of the elastic piece, the upper electromagnetic coil 61 and the upper conductor plate 62, and the lower electromagnetic coil 63 and the lower conductor plate 64.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a tower crane is with initiative shock attenuation damping system which characterized in that: mounting platform (1) that sets up including the level, mounting platform (1) is installed in the upside part of tower crane, the fixed interception frame (2) that is provided with on mounting platform (1), interception frame (2) middle part cavity sets up and is formed with and places space (21), be provided with solution tank (3) that are used for depositing liquid medium in placing space (21), solution tank (3) upside part has been seted up and has been annotated the liquid mouth, just the outer wall of solution tank (3) sets up with interception frame (2) inside wall interval, it is provided with the elastic component to support tightly between all sides outer wall of solution tank (3) and interception frame (2).
2. The active damping system for the tower crane according to claim 1, wherein: the intercepting frame (2) is fixedly provided with a top frame (23) on the upper side of the solution tank (3), an upper electromagnetic coil (61) is arranged on the lower side of the top frame (23), and an upper conductor plate (62) used for cutting the magnetic field generated by the upper electromagnetic coil (61) is fixedly arranged on the upper side face of the solution tank (3).
3. The active damping system for the tower crane according to claim 2, wherein: the mounting platform is characterized in that a sliding support (7) is fixedly arranged on the mounting platform (1), a sliding plane is formed on the upper side of the sliding support (7), a lower electromagnetic coil (63) is further arranged on the lower side of the mounting platform (1), a lower conductor plate (64) used for cutting the magnetic field emitted by the lower electromagnetic coil (63) is fixedly arranged on the lower side of the solution tank (3), and the lower conductor plate (64) is abutted to the sliding plane and is matched with the sliding plane in a sliding mode.
4. The active damping system for the tower crane according to claim 3, wherein: the earthquake acquisition unit is configured to be used for acquiring earthquake amplitude signals;
the processing unit is in signal connection with the seismic acquisition unit, receives the amplitude signal and generates a control signal;
and the control unit is in signal connection with the processing unit, receives and responds to the control signal and controls the energization state of the upper electromagnetic coil (61) and the lower electromagnetic coil (63).
5. The active damping system for the tower crane according to claim 1, wherein: the tower crane is characterized by further comprising a liquid storage tank (51) and a water supply pump (52), wherein the liquid storage tank (51) is installed at the lower side position of the tower crane or on a construction building, and the water supply pump (52) extracts a liquid medium in the liquid storage tank (51) and supplies the liquid medium to the solution tank (3).
6. The active damping system for the tower crane according to claim 3, wherein: sliding support (7) are including fixed plate (71), elasticity post (72) and butt joint board (73), fixed plate (71) are fixed on mounting platform (1), elasticity post (72) are vertical to be fixed on fixed plate (71), just butt joint board (73) are fixed in the upper end of elasticity post (72) and butt in the downside of solution tank (3).
7. The active damping system for the tower crane according to claim 1, wherein: the elastic component is compression spring (4), the position that interception frame (2) are located compression spring (4) and deviate from solution case (3) one end slides along compression spring (4) compression direction and is provided with baffle (222), still be provided with the driving piece that is used for driving baffle (222) to slide on interception frame (2).
8. The active damping system for the tower crane according to claim 7, wherein: the driving piece is a screw rod (223), the screw rod (223) is rotatably erected on the intercepting frame (2), the axial direction of the screw rod (223) is parallel to the sliding direction of the baffle (222), and the screw rod (223) penetrates through the baffle (222) and is in threaded connection with the baffle (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210656091.9A CN114857208B (en) | 2022-06-11 | 2022-06-11 | Active damping system for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210656091.9A CN114857208B (en) | 2022-06-11 | 2022-06-11 | Active damping system for tower crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114857208A true CN114857208A (en) | 2022-08-05 |
| CN114857208B CN114857208B (en) | 2023-11-14 |
Family
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| CN113968545A (en) * | 2021-09-08 | 2022-01-25 | 潍坊职业学院 | Building tower crane shaking damping device |
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| US4236605A (en) * | 1978-08-15 | 1980-12-02 | Charles Lindbergh | Variable counterweight system |
| DE202010000199U1 (en) * | 2010-02-16 | 2010-06-02 | Robotics Technology Leaders Gmbh | Adjustable vibration absorber device for a robot system |
| CN204529166U (en) * | 2015-04-20 | 2015-08-05 | 中国电力科学研究院 | A kind of circulating water Weighting system for single movable-arm floor mast |
| CN208200203U (en) * | 2018-03-30 | 2018-12-07 | 黄河科技学院 | A kind of adjustable derrick crane of counterweight |
| CN210593357U (en) * | 2019-05-17 | 2020-05-22 | 刘昊哲 | Transport case based on electromagnetic damping shock attenuation |
| CN210764044U (en) * | 2019-09-19 | 2020-06-16 | 中建八局第一建设有限公司 | System of toppling is prevented to swing arm tower crane bottom protection platform |
| CN211110756U (en) * | 2019-10-25 | 2020-07-28 | 陕西神州实业有限公司 | Tower crane auxiliary assembly |
| CN212503565U (en) * | 2020-04-07 | 2021-02-09 | 佛山市广洋电梯部件有限公司 | Shockproof elevator counterweight housing |
| CN213117264U (en) * | 2020-09-15 | 2021-05-04 | 山东艾琳智能科技有限公司 | Effectual intelligent house transfer device of shock attenuation |
| CN213981798U (en) * | 2020-10-15 | 2021-08-17 | 中山市沃盛精密金属制品科技有限公司 | Take shockproof structure's quick-witted case for numerical control machining center |
| CN112141913A (en) * | 2020-10-17 | 2020-12-29 | 乔杰 | Tower crane device adjusted through pneumatics and operation method thereof |
| CN112357749A (en) * | 2020-12-09 | 2021-02-12 | 商丘市天宇电力工程有限公司 | Hoisting accessory is used in construction transport of electric power electric appliance cabinet |
| CN112978592A (en) * | 2021-04-29 | 2021-06-18 | 肖志刚 | Crane counterweight equipment |
| CN113307185A (en) * | 2021-07-29 | 2021-08-27 | 沛县汉方机械制造股份有限公司 | Counter weight type forklift capable of automatically balancing counter weight and using method thereof |
| CN113968545A (en) * | 2021-09-08 | 2022-01-25 | 潍坊职业学院 | Building tower crane shaking damping device |
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|---|---|
| CN114857208B (en) | 2023-11-14 |
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