CN216740173U - Self-resetting gear type rotary friction damper - Google Patents
Self-resetting gear type rotary friction damper Download PDFInfo
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- CN216740173U CN216740173U CN202123367489.0U CN202123367489U CN216740173U CN 216740173 U CN216740173 U CN 216740173U CN 202123367489 U CN202123367489 U CN 202123367489U CN 216740173 U CN216740173 U CN 216740173U
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Abstract
The utility model relates to a self-resetting gear type rotary friction damper, wherein an outer barrel is arranged between a top plate and a bottom plate, the bottom surface of the outer barrel is fixed with the bottom plate, a vertical push rod penetrating into the outer barrel is fixedly arranged on the top plate, the bottom end of the vertical push rod is connected with the outer barrel through a disc spring, an energy dissipation assembly is arranged on the side part of the vertical push rod and comprises a rack vertically and fixedly arranged on the upper peripheral side part of the vertical push rod, a gear disc is arranged beside the rack, the gear disc is coaxially and fixedly connected with a first main plate, the end side of the first main plate is coaxially provided with a second main plate fixedly connected on the outer barrel, an energy dissipation plate is arranged in a gap between the first main plate and the second main plate, and shearing energy dissipation discs are respectively arranged in through grooves corresponding to the peripheral directions of the first main plate and the second main plate. The mode of compression deformation of a disc spring, shearing energy consumption disc dislocation and friction of an energy consumption plate is adopted, so that the disc type vibration damping device works with low damping force in a small deformation stage and works with high damping force in a large deformation stage; the device utilizes the gear to rotate and brings bigger rotary displacement and realizes the effect of amplifying vertical displacement.
Description
Technical Field
The utility model relates to a self-resetting gear type rotary friction damper.
Background
The prior publications disclose or disclose the technical situation used: the existing damper has single output damping force, structural performance design under the conditions of large, medium and small earthquakes cannot be considered, and local components of an after-earthquake device are difficult to repair and replace due to unreasonable design. The patent publication No. CN 202039469U of the utility model, which is issued by the national intellectual property office at 11/16/2011, discloses a wind-resistant and earthquake-resistant friction energy dissipation device for a structure, wherein two dampers with different friction forces are integrated into one damper, a limiting device with a slidable range is arranged at the side with low damping force, so that the side with low damping force only slides in a limited small range, and when the sliding range with low damping force is exceeded, the high damping force also starts to slide, thereby improving the energy absorption capacity. The middle plate of the sliding part at the low damping force side is provided with a bolt sliding long hole, the middle plate of the side sliding part at the high damping force side is provided with a longer bolt sliding long hole, and a bolt hole fixed with a structure is arranged at one exposed end of the middle plate of the sliding part; the two friction materials on the low damping force side and the two friction materials on the high damping force side are respectively arranged between the middle plate and the outer plates and are fixed with the two outer plates through fastening bolts and gaskets. The device can realize double-stroke energy consumption, increases the shock absorption and energy consumption effects, but cannot realize self-resetting after an earthquake. The patent publication No. CN 207333543U discloses a damping spring composite shock absorber, which comprises a bottom plate, wherein the upper end surface of the bottom plate is provided with a first sleeve, the first sleeve is vertically provided with a guide rod, the outer wall of the guide rod is sleeved with a spring, one end of the spring is connected with the first sleeve, the other end of the spring is connected with a second sleeve sleeved on the guide rod, the upper end surface of the bottom plate is symmetrically provided with 2 first guide plates on two sides of the first sleeve, the inner side of each first guide plate is provided with a second guide plate in a sliding manner, the top end of the second guide plate is connected with a top plate, the lower end surface of the top plate is provided with a sleeve, the sleeve is connected with the top of the second sleeve, the top plate and the sleeve are sleeved on the guide rod, roof, bottom plate, first deflector and second deflector adopt rubber to make, have certain shock attenuation effect, and this technical scheme's defect lies in that rubber materials anti environmental pollution and temperature change resistance ability are weak, and the life-span is short, just the spring is cylinder spiral spring, and the shock attenuation effect is relatively poor, and follow-up maintenance is comparatively complicated. The national intellectual property office of 28/09.28/2021 discloses that "a tension and compression damper with a limiting self-resetting function" is a utility model patent application (publication number: CN 214302331U), and the technical scheme disclosed by the patent is a tension and compression damper with a limiting self-resetting function, which comprises a top cover, a four-claw traction disc, a rotary sleeve, a shape memory alloy wire, a clamp and an integrated base; the top cover comprises a circular top plate, a cylinder and a limiting rod, and the lower part of the top cover is fixedly connected with the integrated base; the integrated base is composed of a circular bottom plate, a cylinder and a threaded rod, and the four-claw traction disc is composed of a connecting shaft, connecting claws and a hollow disc. The device dissipates through drawing shape memory alloy silk behind the pressure conversion rotational torque to reach the effect of damping. The device has relatively simple structure, is simple and convenient to disassemble, can realize limited self-resetting and is easy for daily maintenance and post-earthquake repair. However, the technical scheme has the defects of single output damping force, limited energy consumption capacity of the shape memory alloy wire coil, high price of the shape memory alloy and no contribution to popularization in practical application.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide a self-resetting gear type rotary friction damper.
In order to solve the technical problem, the technical scheme of the utility model is as follows: the utility model provides a from restoring to throne gear formula rotational friction attenuator, including roof and bottom plate, be equipped with the urceolus between roof and the bottom plate, urceolus bottom surface is fixed with the bottom plate, set firmly the vertical push rod that alternates into the urceolus inside on the roof, vertical push rod bottom links to each other with the urceolus through belleville spring, vertical push rod lateral part is equipped with the power consumption subassembly, the power consumption subassembly includes the vertical rack that sets firmly week lateral part on vertical push rod, the rack side is equipped with the toothed disc, the toothed disc is coaxial to be linked firmly first mainboard, the distolateral coaxial second mainboard that links firmly on the urceolus that is equipped with of first mainboard, the clearance is equipped with the power consumption board between first mainboard and the second mainboard, the circumference of first mainboard and second mainboard corresponds to link up inslot portion and all installs shearing power consumption video disc, all through the pretension bolt between the circumference correspondence arc channel strip of first mainboard and second mainboard, the nut is locked.
Preferably, reserved bolt holes for bolts to penetrate are formed in the top plate and the bottom plate.
Preferably, the top plate is welded with the vertical push rod into a whole.
Preferably, the vertical push rod penetrates through a reserved hole in the top of the rectangular outer barrel and then extends into the barrel, and the inner wall of the outer barrel is fixedly connected with the second main board through a bolt.
Preferably, the circumference equipartition has the through groove of a plurality of one-to-one on second mainboard and the first mainboard, and the circumference equipartition has the arc groove strip of a plurality of one-to-one on second mainboard and the first mainboard, all passes the pretension bolt and locks through the nut between the arc groove strip of correspondence.
Preferably, the first main plate is fixed with the gear plate into a whole through a cross shaft.
Preferably, the two opposite sides of the vertical push rod are symmetrically provided with energy dissipation assemblies.
Compared with the prior art, the utility model has the following beneficial effects: the novel damper can realize the functions of double-stroke energy consumption and recovery after an earthquake; the device adopts the forms of compression deformation of a disc spring, shearing energy consumption disc dislocation and friction of an energy consumption plate to realize working with low damping force in a small deformation stage and working with high damping force in a large deformation stage; the device realizes the amplification effect of vertical displacement by utilizing larger rotary displacement brought by gear rotation; in addition, the structure of the device is reasonably designed, so that the energy-consuming disc for shearing after an earthquake is convenient to disassemble and replace.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a cross-sectional view B-B of fig. 2.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 2.
Detailed Description
The utility model is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure herein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 4, the embodiment provides a self-resetting gear type rotational friction damper, which includes a top plate 1 and a bottom plate 2, an outer cylinder 5 is arranged between the top plate and the bottom plate, the bottom surface of the outer cylinder is fixed to the bottom plate, a vertical push rod 3 inserted into the inner portion of the outer cylinder is fixedly arranged on the top plate, the bottom end of the vertical push rod is connected to the outer cylinder through a belleville spring 10, an energy dissipation assembly is arranged on the lateral portion of the vertical push rod, the energy dissipation assembly includes a rack 15 vertically and fixedly arranged on the upper peripheral lateral portion of the vertical push rod, a gear disc 11 is arranged beside the rack, the gear disc is coaxially and fixedly connected with a first main plate 13, a second main plate 6 fixedly connected to the outer cylinder is coaxially arranged on the end side of the first main plate, an energy dissipation plate 14 is arranged in a gap between the first main plate and the second main plate, shearing energy dissipation plates 12 are arranged in the circumferential corresponding through grooves of the first main plate and the second main plate, and the circumferential corresponding to the arc-shaped grooves of the first main plate and the second plate are all connected through pre-tightening bolts 8, The nut is locked. The gear disc is provided with a gear size which can be meshed with the rack on the vertical push rod.
In the embodiment of the utility model, the through grooves of the first main board and the second main board form a through slot into which a complete cutting energy consumption disc can be inserted. If a main board rotates, the middle part of the energy-consuming cutting disc can be cut and consumed.
In the embodiment of the utility model, reserved bolt holes 4 for bolts to pass through are arranged on the top plate and the bottom plate.
In the embodiment of the utility model, the top plate and the vertical push rod are welded into a whole.
In the embodiment of the utility model, the vertical push rod penetrates through the reserved hole at the top of the rectangular outer cylinder and then extends into the cylinder, and the inner wall of the outer cylinder is fixedly connected with the second main board through the bolt 9.
In the embodiment of the utility model, a plurality of through grooves which correspond to one another are uniformly distributed on the circumferences of the second main board and the first main board, a plurality of arc-shaped groove strips which correspond to one another are uniformly distributed on the circumferences of the second main board and the first main board, and the corresponding arc-shaped groove strips penetrate through the pre-tightening bolt and are locked by the nut. The arc-shaped groove strip is allowed to move to a certain extent, namely the width of the arc-shaped groove strip is larger than the outer diameter of the pre-tightening bolt rod. When the vertical push rod extrudes downwards to drive the gear disc through the rack on the push rod, the gear disc drives the first main plate through the cross shaft, and after the static friction force is overcome, the first main plate and the second main plate can relatively rotate along the arc-shaped groove strip, so that the shearing energy consumption disc and the energy consumption plate consume energy together.
In the embodiment of the utility model, the first main plate is fixed with the gear plate into a whole through the cross shaft 7.
In the embodiment of the utility model, energy dissipation assemblies are symmetrically arranged on two opposite sides of the vertical push rod.
In the embodiment of the utility model, the shearing energy consumption disc is the prior art, and patents such as 'an arc-shaped steel plate damper CN106869357A with a replaceable two-stage energy consumption damping plate' and 'a two-stage shearing energy consumption steel plate-polypropylene ball composite damper and an energy consumption method CN 111593651A' are adopted.
The specific implementation process comprises the following steps: the technology realizes the first-stage energy consumption by extruding the disc spring through the vertical push rod; when the vertical displacement is realized to enable the racks arranged on the peripheral side part of the upper side part of the vertical push rod to be meshed with the gear disc, the effect of amplifying the vertical displacement is realized by utilizing larger rotary displacement brought by gear rotation, and the shearing energy consumption disc and the energy consumption plate arranged in the gear rotation process can fully perform the second stage energy consumption; after the earthquake, the disc spring provides restoring force, and the damper can realize self-resetting. The device has simple structure and definite energy consumption mechanism, can realize double-stroke variable damping, works with low damping force in a small deformation stage, works with high damping force in a large deformation stage, is convenient to replace if the energy consumption disc is broken after an earthquake, and can realize the self-resetting function by providing restoring force by the disc spring.
The utility model can solve the problem that the actual structure is greatly deformed and damaged under the action of tension and compression under the action of earthquake, and improve the earthquake-resistant performance of the structure. The product is mainly installed in the middle positions of a structural frame, a frame-shear wall and a connecting beam span in a multi-seismic zone.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a from reset gear formula rotational friction attenuator which characterized in that: including roof and bottom plate, be equipped with the urceolus between roof and the bottom plate, urceolus bottom surface is fixed with the bottom plate, set firmly on the roof and alternate the inside vertical push rod of urceolus, vertical push rod bottom links to each other with the urceolus through belleville spring, vertical push rod lateral part is equipped with the power consumption subassembly, the power consumption subassembly includes the vertical rack that sets firmly week lateral part on vertical push rod, the rack side is equipped with the toothed disc, the toothed disc is coaxial to be linked firmly first mainboard, the distolateral coaxial second mainboard that links firmly on the urceolus that is equipped with of first mainboard, the clearance is equipped with the power consumption board between first mainboard and the second mainboard, the corresponding inslot portion of circumference of first mainboard and second mainboard all installs shearing power consumption video disc, all through the pretension bolt between the circumference correspondence arc groove strip of first mainboard and second mainboard, the nut is locked.
2. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: reserved bolt holes for bolts to penetrate are formed in the top plate and the bottom plate.
3. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: the top plate and the vertical push rod are welded into a whole.
4. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: the vertical push rod penetrates through a reserved hole in the top of the rectangular outer barrel and then extends into the outer barrel, and the inner wall of the outer barrel is fixedly connected with the second main board through a bolt.
5. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: the circumference equipartition has the groove that link up of a plurality of one-to-one on second mainboard and the first mainboard, and the circumference equipartition has the arc groove strip of a plurality of one-to-one on second mainboard and the first mainboard, all passes pretension bolt and through nut locking between the arc groove strip of correspondence.
6. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: the first main plate is fixed with the gear plate into a whole through the cross shaft.
7. The self-resetting gear-type rotary friction damper according to claim 1, characterized in that: energy dissipation assemblies are symmetrically arranged on two opposite sides of the vertical push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123367489.0U CN216740173U (en) | 2021-12-30 | 2021-12-30 | Self-resetting gear type rotary friction damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123367489.0U CN216740173U (en) | 2021-12-30 | 2021-12-30 | Self-resetting gear type rotary friction damper |
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| CN216740173U true CN216740173U (en) | 2022-06-14 |
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| CN202123367489.0U Active CN216740173U (en) | 2021-12-30 | 2021-12-30 | Self-resetting gear type rotary friction damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538835A (en) * | 2022-11-03 | 2022-12-30 | 北京工业大学 | Self-resetting rotary amplification friction energy dissipation damper |
| CN116201846A (en) * | 2023-05-05 | 2023-06-02 | 溧阳常大技术转移中心有限公司 | Metal vibration isolator with damping force jumping along with displacement |
-
2021
- 2021-12-30 CN CN202123367489.0U patent/CN216740173U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538835A (en) * | 2022-11-03 | 2022-12-30 | 北京工业大学 | Self-resetting rotary amplification friction energy dissipation damper |
| CN115538835B (en) * | 2022-11-03 | 2024-01-05 | 北京工业大学 | Self-resetting rotary amplifying friction energy dissipation damper |
| CN116201846A (en) * | 2023-05-05 | 2023-06-02 | 溧阳常大技术转移中心有限公司 | Metal vibration isolator with damping force jumping along with displacement |
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