CN116857317A - Tuned mass damper for chimney - Google Patents
Tuned mass damper for chimney Download PDFInfo
- Publication number
- CN116857317A CN116857317A CN202310804810.1A CN202310804810A CN116857317A CN 116857317 A CN116857317 A CN 116857317A CN 202310804810 A CN202310804810 A CN 202310804810A CN 116857317 A CN116857317 A CN 116857317A
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- Prior art keywords
- damping
- chimney
- fixed mounting
- fixedly arranged
- rod
- Prior art date
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- 238000013016 damping Methods 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 25
- 239000012634 fragment Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 abstract description 9
- 230000010485 coping Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
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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
- F16F15/022—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 dampers and springs in combination
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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
- F16F15/023—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 fluid means
- F16F15/0232—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 fluid means with at least one gas spring
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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
- F16F15/023—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 fluid means
- F16F15/027—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 fluid means comprising control arrangements
- F16F15/0275—Control of stiffness
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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
- F16F15/046—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 using combinations of springs of different kinds
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a tuned mass damper for a chimney. The invention relates to a tuned mass damper for a chimney, which comprises a mounting main board, wherein four adjusting structures are fixedly arranged at the top of the mounting main board, and the four adjusting structures comprise first damping pipes. According to the invention, when the adjusting structure and the locking structure are used for coping with the impact of different intensities, the rotary valve is rotated to drive the rotary rod to rotate, and the gear is meshed with the teeth of the telescopic rod, so that the telescopic rod can be driven to move up and down in the first damping tube when the gear rotates, and the sealing gasket is sealed with the first damping tube, so that the length of an air column in the first damping tube can be changed when the telescopic rod moves in the first damping tube, and the damping force generated when the first spring drives the damping rod to compress can be changed, so that the impact of different intensities can be coped with, and the impact on buffering work is caused, and the aim of adjusting the damping intensity according to different impact intensities is achieved.
Description
Technical Field
The invention relates to the technical field of tuned dampers, in particular to a tuned mass damper for a chimney.
Background
A chimney is a structure that provides ventilation for the hot flue gas or fumes of a boiler, furnace, stove or fireplace. The stack is usually vertical, or as close to vertical as possible, to ensure a smooth flow of gas, the intake air entering the so-called stack combustion or stack effect. The space within the chimney is called the stack. The chimney may be found in buildings, steam locomotives and boats. The tuning mass damper TMD consists of a mass block, a spring and a damping system; the vibration frequency is adjusted to be near the frequency of the main structure, so that the resonance characteristic of the structure is changed, and the damping effect is achieved.
At present, current tuning mass damper for chimney does not possess and carries out effectual damping force to the impact of different intensity and adjust when using, lead to in some natural disasters down the impact that chimney body received unable timely and effectual quilt buffering, cause the chimney body to receive the injury, simultaneously because the damper body is less and the chimney is great, the biggest impact that the damper body can bear is limited, so people need to use more dampers when the installation, cause use cost to increase, and current tuning mass damper only possesses horizontal buffering, and lacks the ability of vertical buffering, lead to the chimney when receiving vertical impact, therefore need design a new equipment in order to solve above-mentioned problem.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention aims to provide a tuned mass damper for a chimney, which has the advantages of adjusting damping strength and additional damping force according to different impact strengths, improving buffering effect and having longitudinal buffering capacity.
(II) technical scheme
The invention provides the following technical scheme for realizing the purpose, namely the tuned mass damper for the chimney, which comprises the following technical scheme: the utility model provides a tuning mass damper for chimney, includes the installation mainboard, the top fixed mounting of installation mainboard has four regulation structures, four regulation structures includes first damping tube, four side tank has been seted up to one side of first damping tube, four the surface both sides fixed mounting of first damping tube has the extension piece, two the inside fixed dwang one that has cup jointed of extension piece, the surface middle section fixed of dwang one has cup jointed the gear, the fixed rotary valve that has cup jointed of surface one end of dwang one, a plurality of grooves have been seted up to the surface of rotary valve, the surface top fixed mounting of first damping tube has first spring, the surface top fixed mounting of first spring has the spliced pole, the bottom fixed mounting of spliced pole has damping rod one, the bottom one end fixed mounting of damping rod one has the clamp plate, the inside movable sleeve of first damping tube has the telescopic link, the top one end fixed mounting of telescopic link has sealing gasket, sealing gasket and first damping tube sealing connection.
As the preferred scheme, the top fixed mounting of installation mainboard has four to lock the structure, four locking the structure and including supporting seat one, the inside fixed dwang second that has cup jointed of supporting seat one, the inside articulated fixture block of installing of dwang second, the fixture block card is in the groove of rotary valve.
As the preferable scheme, the pressing block is fixedly arranged on one side of the outer surface of the clamping block, a second spring is fixedly arranged at the bottom of the outer surface of the pressing block, and the second spring is fixedly connected with the installation main board.
As the preferable scheme, four the inside fixed mounting of spliced pole has the roof, the surface top fixed mounting of roof has curved surface shell fragment, the bottom fixed mounting of roof has the balancing weight.
As the preferable scheme, the surface top fixed mounting of installation mainboard has auxiliary structure, auxiliary structure includes the slide rail, the inside fixed mounting of slide rail has the sleeve pipe, sheathed tube surface fixed sleeve has cup jointed the third spring.
As a preferable scheme, sliding blocks are fixedly arranged at two ends of the outer surface of the third spring, the two sliding blocks are in sliding connection with the sleeve, a first hinge seat is fixedly arranged at the top of the two sliding blocks, and a hinge rod is hinged inside the first hinge seat.
As a preferable scheme, two sides of the bottom of the outer surface of the balancing weight are fixedly provided with hinge seats II, two hinge seats II are in hinged connection with a hinge rod, the bottom of the balancing weight is fixedly provided with four fourth springs, and the four fourth springs are fixedly connected with an installation main board.
As a preferable scheme, two longitudinal buffer structures are fixedly arranged on two sides of the outer surface of the balancing weight, the two longitudinal buffer structures comprise second damping pipes, a fifth spring is fixedly arranged on the top of the outer surface of each second damping pipe, and a connecting plate is fixedly arranged on the top of the outer surface of each fifth spring.
As a preferable scheme, the bottom of the connecting plate is fixedly provided with a second damping rod, the second damping rod is sealed inside a second damping tube, and the top of the connecting plate is fixedly provided with an L-shaped sensing plate.
As the preferred scheme, the bottom fixed mounting of installation mainboard has the bottom plate, the bottom both sides fixed mounting of bottom plate has the T template, two the internal screw thread of T template installs firm piece, the surface bottom welding of firm piece installs the installation spiral shell board.
As the preferred scheme, one the top fixed mounting of T template has the connecting rod, the surface top fixed mounting of connecting rod has the cantilever beam arm, the bottom fixed mounting of cantilever beam arm has the bracing piece, the natural vibration circle frequency of this device is:and the displacement under the action of the inertia force of the device is as follows: />From this, the self-oscillation frequency calculation formula of this device can be obtained and is:
(III) beneficial effects
Compared with the prior art, the invention provides a tuned mass damper for a chimney, which comprises the following components
The beneficial effects are that:
1. according to the invention, when the rotary valve is rotated to handle the impact with different intensity, the rotary rod drives the gear to rotate, and the gear is meshed with the teeth of the telescopic rod, so that the telescopic rod can be driven to move up and down in the first damping tube when the gear rotates, and the length of an air column in the first damping tube can be changed when the telescopic rod moves in the first damping tube due to the sealing gasket and the sealing of the first damping tube, so that the damping force generated when the first spring drives the damping rod to compress can be changed, the impact with different intensity can be handled, after the adjustment is finished, the clamping block is rotated on the outer surface of the rotary rod through the stretching of the second spring, and the clamping block can be clamped in the groove of the rotary valve, so that the rotary valve is prevented from rotating mistakenly when in operation, the impact is influenced, and the aim of adjusting the damping intensity according to different impact intensities is achieved;
2. according to the invention, when the device performs buffering work, the curved elastic sheet is contacted with the inner wall of the chimney, and the curved elastic sheet drives the balancing weight to press downwards after being impacted, at the moment, due to the hinging of the hinging rods, the two hinging rods simultaneously press the sliding blocks inwards when the balancing weight is pressed downwards, at the moment, the two sliding blocks slide inwards on the outer surface of the sleeve, the third spring is pressed and contracted, and springs outwards when contracted to the limit, the generated elastic force and the impact force are partially counteracted, so that the buffering effect can be improved, and the purpose of adding damping force is achieved;
3. according to the invention, through the longitudinal buffer structure, when the device is integrally installed, two installation grooves are formed in the upper side and the lower side of the inner wall of the chimney in advance, the L-shaped sensing plate is inserted into the grooves at the moment, and when the chimney receives a longitudinal impact force, the second damping rod is pressed down in the sealed second damping tube to counteract the impact through the shrinkage of the fifth spring, so that the device has the longitudinal buffer capacity.
Drawings
FIG. 1 is a schematic view of the appearance structure of the present invention;
FIG. 2 is a schematic view of a curved spring plate according to the present invention;
FIG. 3 is a schematic diagram of the adjusting structure of the present invention;
FIG. 4 is a schematic view of a locking structure of the present invention;
FIG. 5 is a schematic view of a curved spring plate according to the present invention;
FIG. 6 is a schematic diagram of an auxiliary structure of the present invention;
FIG. 7 is a schematic view of a longitudinal cushioning structure according to the present invention;
fig. 8 is a schematic view of a connection structure according to the present invention.
In the figure: 1. installing a main board; 2. an adjustment structure; 21. a first damper tube; 22. a side groove; 23. an extension block; 24. rotating the first rod; 25. a gear; 26. a rotary valve; 27. a first spring; 28. a connecting column; 29. damping rod I; 210. a pressing plate; 211. a telescopic rod; 212. a sealing gasket; 3. a locking structure; 31. a first supporting seat; 32. a second rotating rod; 33. a clamping block; 34. pressing the blocks; 35. a second spring; 4. a top plate; 5. a curved elastic sheet; 6. balancing weight; 7. an auxiliary structure; 71. a slide rail; 72. a sleeve; 73. a third spring; 74. a sliding block; 75. a hinge seat I; 76. a hinge seat II; 77. a hinge rod; 78. a fourth spring; 8. a longitudinal buffer structure; 81. a second damper tube; 82. a fifth spring; 83. damping rod II; 84. a connecting plate; 85. an L-shaped sensing plate; 9. a bottom plate; 10. t-shaped plates; 11. a stabilizing block; 12. installing a screw plate; 13. a connecting rod; 14. a cantilever beam arm; 15. and (5) supporting the rod.
Detailed Description
The invention is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:
referring to fig. 1-7, the present invention: the utility model provides a tuning mass damper for chimney, including installing mainboard 1, the top fixed mounting of installing mainboard 1 has four regulation structure 2, four regulation structure 2 include first damping tube 21, side channel 22 has been seted up to one side of four first damping tube 21, the surface both sides fixed mounting of four first damping tube 21 has extension piece 23, the inside fixed dwang first 24 that has cup jointed of two extension pieces 23, the surface middle section fixed of dwang first 24 has cup jointed gear 25, the fixed rotary valve 26 that has cup jointed of surface one end of dwang first 24, a plurality of grooves have been seted up to the surface of rotary valve 26, the surface top fixed mounting of first damping tube 21 has first spring 27, the surface top fixed mounting of first spring 27 has spliced pole 28, the bottom fixed mounting of spliced pole 28 has damping rod first 29, the bottom fixed mounting of damping rod first 29 has clamp plate 210, the inside movable cup joint of first damping tube 21 has the telescopic link 211, the top one end fixed mounting of telescopic link 211 has sealing washer 212, sealing washer 212 and first damping tube 21 sealing connection.
Please refer to fig. 1-3 for the present invention: the top fixed mounting of installation mainboard 1 has four to lock structure 3, and four lock structure 3 include supporting seat one 31, and the inside fixed cover of supporting seat one 31 has turned lever two 32, and the fixture block 33 is installed to the inside articulated of turned lever two 32, and fixture block 33 card is in the groove of rotary valve 26. A pressing block 34 is fixedly arranged on one side of the outer surface of the clamping block 33, a second spring 35 is fixedly arranged at the bottom of the outer surface of the pressing block 34, and the second spring 35 is fixedly connected with the installation main board 1.
When the damping force of the regulator is required, the second spring 35 is contracted by pressing the pressing block 34 downward, thereby driving the latch block 33 to rotate around the second rotating rod 32, and thereby the latch block 33 can be disengaged from the groove of the rotary valve 26, and the rotary valve 26 can be rotated.
Please refer to fig. 4-5 for the present invention: the inside fixed mounting of four spliced poles 28 has roof 4, and the surface top fixed mounting of roof 4 has curved surface shell fragment 5, and the bottom fixed mounting of roof 4 has balancing weight 6. The auxiliary structure 7 is fixedly arranged at the top of the outer surface of the installation main board 1, the auxiliary structure 7 comprises a sliding rail 71, a sleeve 72 is fixedly arranged in the sliding rail 71, and a third spring 73 is fixedly sleeved on the outer surface of the sleeve 72. The sliding blocks 74 are fixedly arranged at two ends of the outer surface of the third spring 73, the two sliding blocks 74 are in sliding connection with the sleeve 72, the first hinging seats 75 are fixedly arranged at the tops of the two sliding blocks 74, and the hinging rods 77 are hinged inside the first hinging seats 75. Two sides of the bottom of the outer surface of the balancing weight 6 are fixedly provided with second hinging seats 76, the two second hinging seats 76 are hinged with hinging rods 77, the bottom of the balancing weight 6 is fixedly provided with four fourth springs 78, and the four fourth springs 78 are fixedly connected with the installation main board 1.
The curved elastic sheet 5 is attached to the inner wall of the chimney, and the curved elastic sheet 5 has elasticity. Through curved surface shell fragment 5 and chimney inner wall contact, the curved surface shell fragment 5 drives balancing weight 6 and pushes down after receiving the impact, at this moment because the articulated of articulated rod 77, so when balancing weight 6 pushes down, causes two articulated rod 77 simultaneously to inboard extrusion sliding block 74, and two sliding blocks 74 are at sleeve pipe 72 surface inwards sliding this moment, and third spring 73 receives the extrusion and shrink, outwards pops out when contracting to the limit, and the elasticity that produces and the impact that receives produces partial offset.
Please refer to fig. 1-7 for the present invention: two longitudinal buffer structures 8 are fixedly arranged on two sides of the outer surface of the balancing weight 6, each longitudinal buffer structure 8 comprises a second damping tube 81, a fifth spring 82 is fixedly arranged on the top of the outer surface of each second damping tube 81, and a connecting plate 84 is fixedly arranged on the top of the outer surface of each fifth spring 82. The bottom of the connecting plate 84 is fixedly provided with a second damping rod 83, the second damping rod 83 is sealed inside the second damping tube 81, and the top of the connecting plate 84 is fixedly provided with an L-shaped sensing plate 85. The bottom of the installation mainboard 1 is fixedly provided with a bottom plate 9, two sides of the bottom plate 9 are fixedly provided with T-shaped plates 10, the internal threads of the two T-shaped plates 10 are provided with a stabilizing block 11, and the bottom of the outer surface of the stabilizing block 11 is welded and provided with an installation screw plate 12. The top fixed mounting of a T template 10 has connecting rod 13, and the surface top fixed mounting of connecting rod 13 has cantilever beam arm 14, and the bottom fixed mounting of cantilever beam arm 14 has bracing piece 15, and the natural vibration circle frequency of this device is:and the displacement under the action of the inertia force of the device is as follows: />From this, the self-oscillation frequency calculation formula of this device can be obtained and is:
two mounting grooves are formed in the upper side and the lower side of the inner wall of the chimney in advance, at the moment, the L-shaped sensing plate 85 is inserted into the grooves, and when the chimney receives a longitudinal impact force, the second damping rod 83 is pressed down in the sealed second damping tube 81 to counteract the impact through shrinkage of the fifth spring 82. The T-shaped plate 10 and the stabilizing block 11 are fixed in a triangular shape by using bolts, so that the connection between the bottom plate 9 and the mounting screw plate 12 is more stable. The connecting rod 13, the cantilever arm 14 and the supporting rod 15 are used for controlling the rigidity of the unit through the connecting rod 13, adjusting the self-vibration frequency of the device, fixing the connecting rod 13 and the device on the chimney cylinder through the cantilever arm 14, supporting the cantilever arm 14 through the supporting rod 15, and improving the safety of the structure.
The working principle of the invention is as follows: when the device is installed, two installation grooves are formed on the upper side and the lower side of the inner wall of the chimney in advance, at the moment, the L-shaped sensing plate 85 is inserted into the grooves, when the chimney receives a longitudinal impact force, the second damping rod 83 is pressed down in the sealed second damping tube 81 by the contraction of the fifth spring 82 to counteract the impact, the device has the longitudinal buffering capacity, the impact bearing limit of the device is improved, then when the device is used for coping with impacts with different intensities, the rotating valve 26 is rotated, the rotating rod 24 drives the gear 25 to rotate, the gear 25 is meshed with teeth of the telescopic rod 211, when the gear 25 rotates, the telescopic rod 211 can be driven to move up and down in the first damping tube 21, the sealing gasket 212 is sealed with the first damping tube 21, when the telescopic rod 211 moves in the first damping tube 21, the length of an air column in the first damping tube 21 can be changed, the damping force generated when the first spring 27 drives the damping rod 29 to compress can be changed, so that the impact with different intensity can be dealt with, after the adjustment is finished, the clamping block 33 rotates on the outer surface of the second rotating rod 32 through the stretching of the second spring 35, the clamping block 33 can be clamped in the groove of the rotating valve 26, the rotating valve 26 can be locked, the device is prevented from rotating by mistake during operation, the buffer work is influenced, finally, when the device performs the buffer work, the curved spring piece 5 contacts with the inner wall of the chimney, the curved spring piece 5 drives the balancing weight 6 to press down after the impact, at the moment, the hinging rod 77 is hinged, when the balancing weight 6 is pressed down, the two hinging rods 77 simultaneously press the sliding blocks 74 inwards, at the moment, the two sliding blocks 74 slide inwards on the outer surface of the sleeve 72, the third spring 73 is extruded to shrink, and outwards pops up when shrinking to the limit, the generated elastic force and the received impact force are partially counteracted, so that the buffer effect can be improved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (11)
1. The utility model provides a tuning mass damper for chimney, includes installation mainboard (1), its characterized in that: four adjusting structures (2) are fixedly arranged at the top of the installation main board (1), the four adjusting structures (2) comprise first damping pipes (21), one side of each first damping pipe (21) is provided with a side groove (22), the four side grooves are fixedly arranged at two sides of the outer surface of each first damping pipe (21), two extending blocks (23) are fixedly sleeved with a rotating rod one (24), gears (25) are fixedly sleeved on the middle section of the outer surface of each rotating rod one (24), a rotating valve (26) is fixedly sleeved at one end of the outer surface of each rotating rod one (24), a plurality of grooves are formed in the outer surface of each rotating valve (26), a first spring (27) is fixedly arranged at the top of the outer surface of each first damping pipe (21), a connecting column (28) is fixedly arranged at the top of each outer surface of each first spring, a damping rod one (29) is fixedly sleeved at the bottom of each connecting column (28), a pressing plate (210) is fixedly sleeved at the bottom of each damping rod one (29), a rotating valve (26) is fixedly sleeved at one end of the outer surface of each rotating rod one (24), a movable rod (211) is fixedly sleeved with a sealing gasket (212), and the sealing gasket (212) is fixedly sleeved at the top of each movable rod (211).
2. A tuned mass damper for a chimney according to claim 1, wherein: the top fixed mounting of installation mainboard (1) has four to lock structure (3), four locking structure (3) are including supporting seat one (31), the inside fixed dwang second (32) that has cup jointed of supporting seat one (31), the inside articulated fixture block (33) of installing of dwang second (32), fixture block (33) card is in the groove of rotary valve (26).
3. A tuned mass damper for a chimney according to claim 2, wherein: the clamping block is characterized in that a pressing block (34) is fixedly arranged on one side of the outer surface of the clamping block (33), a second spring (35) is fixedly arranged at the bottom of the outer surface of the pressing block (34), and the second spring (35) is fixedly connected with the installation main board (1).
4. A tuned mass damper for a chimney according to claim 1, wherein: the inside fixed mounting of four spliced pole (28) has roof (4), curved surface shell fragment (5) are fixed mounting at the surface top of roof (4), the bottom fixed mounting of roof (4) has balancing weight (6).
5. A tuned mass damper for a chimney according to claim 1, wherein: the auxiliary structure (7) is fixedly arranged at the top of the outer surface of the installation main board (1), the auxiliary structure (7) comprises a sliding rail (71), a sleeve (72) is fixedly arranged in the sliding rail (71), and a third spring (73) is fixedly sleeved on the outer surface of the sleeve (72).
6. The tuned mass damper for a chimney of claim 5, wherein: sliding blocks (74) are fixedly arranged at two ends of the outer surface of the third spring (73), the two sliding blocks (74) are in sliding connection with the sleeve (72), a first hinging seat (75) is fixedly arranged at the top of the two sliding blocks (74), and a hinging rod (77) is hinged inside the first hinging seat (75).
7. The tuned mass damper for a chimney of claim 4, wherein: two sides of the bottom of the outer surface of the balancing weight (6) are fixedly provided with a second hinging seat (76), two second hinging seats (76) are hinged with a hinging rod (77), the bottom of the balancing weight (6) is fixedly provided with four fourth springs (78), and the four fourth springs (78) are fixedly connected with the installation main board (1).
8. The tuned mass damper for a chimney of claim 4, wherein: two longitudinal buffer structures (8) are fixedly arranged on two sides of the outer surface of the balancing weight (6), the two longitudinal buffer structures (8) comprise second damping pipes (81), a fifth spring (82) is fixedly arranged on the top of the outer surface of each second damping pipe (81), and a connecting plate (84) is fixedly arranged on the top of the outer surface of each fifth spring (82).
9. The tuned mass damper for a chimney of claim 8, wherein: the bottom of connecting plate (84) is fixed mounting has damping pole two (83), damping pole two (83) seal in the inside of second damping pipe (81), the top fixed mounting of connecting plate (84) has L type sensing board (85).
10. A tuned mass damper for a chimney according to claim 1, wherein: the bottom of installation mainboard (1) fixed mounting has bottom plate (9), the bottom both sides fixed mounting of bottom plate (9) has T template (10), two firm piece (11) are installed to the internal screw thread of T template (10), the surface bottom welding of firm piece (11) installs installation spiral shell board (12).
11. The tuned mass damper for a chimney of claim 11, wherein: one T-shaped plate10 The top fixed mounting has connecting rod (13), the surface top fixed mounting of connecting rod (13) has cantilever beam arm (14), the bottom fixed mounting of cantilever beam arm (14) has bracing piece (15), this device's natural vibration circle frequency is:and the displacement under the action of the inertia force of the device is as follows: />From this, the self-oscillation frequency calculation formula of this device can be obtained and is: />
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310804810.1A CN116857317A (en) | 2023-07-03 | 2023-07-03 | Tuned mass damper for chimney |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310804810.1A CN116857317A (en) | 2023-07-03 | 2023-07-03 | Tuned mass damper for chimney |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570066A (en) * | 2024-01-16 | 2024-02-20 | 杭州新亚低温科技有限公司 | Vibration suppression system and method for high-power high-lift low-temperature pump rotor |
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2023
- 2023-07-03 CN CN202310804810.1A patent/CN116857317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570066A (en) * | 2024-01-16 | 2024-02-20 | 杭州新亚低温科技有限公司 | Vibration suppression system and method for high-power high-lift low-temperature pump rotor |
| CN117570066B (en) * | 2024-01-16 | 2024-03-29 | 杭州新亚低温科技有限公司 | Vibration suppression system and method for high-power high-lift low-temperature pump rotor |
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