CN213448103U - Self-adaptive damping vibration attenuation device for inhaul cable or suspender - Google Patents

Self-adaptive damping vibration attenuation device for inhaul cable or suspender Download PDF

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Publication number
CN213448103U
CN213448103U CN202020957651.0U CN202020957651U CN213448103U CN 213448103 U CN213448103 U CN 213448103U CN 202020957651 U CN202020957651 U CN 202020957651U CN 213448103 U CN213448103 U CN 213448103U
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damping vibration
vibration attenuation
supporting foot
baffle
cable
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CN202020957651.0U
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Inventor
王强
庞维林
黄永玖
覃磊
朱永权
杨应春
梁冰
蒋立军
陈奉民
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Liuzhou OVM Machinery Co Ltd
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Liuzhou OVM Machinery Co Ltd
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Abstract

An adaptive damping vibration attenuation device for a guy cable or a suspender comprises a pressure plate, a damping vibration attenuation ring with taper, a T-shaped supporting leg, a correction pipe, a baffle plate and a high-strength bolt, the T-shaped supporting foot comprises an arc-shaped supporting foot surface and supporting foot legs positioned at the bottom of the supporting foot surface, the correcting pipe is radially provided with n mounting grooves matched with the supporting foot legs of the T-shaped supporting foot, the arm brace legs of the n T-shaped arm braces respectively pass through the mounting groove and the arm brace face of the n T-shaped arm braces to form a circular cavity, install tapering damping vibration attenuation circle, clamp plate in proper order in the round cavity that n circular-arc temple face of a T type temple is constituteed, and the baffle is located the correction tube other end, and high strength bolt passes baffle, tapered damping vibration attenuation circle and clamp plate, connects into a whole with clamp plate, tapered damping vibration attenuation circle, T type temple, correction tube and baffle, and the value range of above-mentioned n is: n is more than or equal to 2 and less than or equal to 20, and the device has simple structure and good durability and can adapt to the matching installation of various pre-buried pipes with different specifications in the engineering.

Description

Self-adaptive damping vibration attenuation device for inhaul cable or suspender
Technical Field
The utility model relates to a be applicable to among the bridge engineering damping vibration device for cable or jib, be a cable or for jib self-adaptation damping vibration device that belongs to a built-in damping vibration device particularly.
Background
The stay cable (or the suspender) is a main bearing stress component of a cable-stayed bridge, a suspension bridge or a large-span arch bridge, has the characteristics of high flexibility, low internal damping, wide natural frequency distribution and the like, and is easy to vibrate under the excitation of wind, wind and rain or external environment; at present, the main control measures for inhibiting the vibration of the guy cable (or the suspender) at home and abroad comprise a plurality of measures: for the vibration reduction of most inhaul cables (or suspenders), a damping vibration reduction device is commonly added at the near end; in practical engineering, the damping device is additionally arranged at the near end of the inhaul cable (or the suspender) and mainly adopts two modes: the other is a damper arranged outside the inhaul cable, because the damper is always exposed in the atmospheric environment and bears the corrosion of the environments such as sunshine, rainwater, atmosphere and the like, the damper has weak durability and higher manufacturing, maintaining and maintaining cost, and meanwhile, the external damper has larger volume and has negative effect on bridge landscape when being placed on a bridge floor, so the damper is less in use; the most used method is to adopt high-damping materials to make the built-in damping vibration attenuation devices, the built-in damping vibration attenuation devices comprise two types, one type is to adopt the vibration absorbers with the matched inner diameters of the embedded pipes, namely the embedded pipes with different specifications are matched with the vibration absorbers with different models, the embedded pipes with various specifications can be frequently adopted in the actual engineering according to the design, construction or economic requirements, so that a plurality of vibration absorbers matched with the embedded pipes can be produced in the same engineering, the production cost of the vibration absorbers can be greatly increased, and the economic benefit is greatly reduced; in addition, the vibration absorber is welded on site, the high temperature generated in the welding process can damage the damping material in the vibration absorber, reduce the vibration absorbing effect, and in addition, the sparks in the welding process can easily burn the PE outside the cable body, so that the fire is easily caused, and the later maintenance and replacement are not convenient, and in order to solve the problems, the applicant has applied for a universal standard type vibration absorber with the bulletin number of CN201420040702.8, and the weldable material is filled in the gap between the vibration absorber and the embedded pipe to weld the vibration absorber and the embedded pipe into a whole, but the installation only can ensure that the side close to the mouth of the embedded pipe is welded and fixed, but the side far away from the embedded pipe cannot be welded and fixed, when the cable vibrates under the external action of the outside, the stress of the vibration absorber is uneven, so that the cable is separated from the vibration absorber to be contacted and separated, and the vibration absorbing effect of the cable is further caused The utility model is named as a bridge inhaul cable shock absorber, which can partially solve the problems, but has limited adjusting range, needs bonding or grouting and is complex to operate; especially when the cable and the embedded pipe are eccentric, the shock absorber is difficult to mount and even cannot be mounted, even if the shock absorber is forcibly mounted in other external action modes, the shock absorber is uneven in stress, and the shock absorber is damaged due to overlarge local stress, so that the shock absorber cannot play a shock absorbing function, and the cable body is damaged due to the fact that the cable generates vibration to accelerate the fatigue of the cable.
Disclosure of Invention
The utility model aims to provide a: the self-adaptive damping vibration attenuation device for the inhaul cable or the suspender is a built-in damping vibration attenuation device, has a simple structure, good energy consumption performance and good durability, is convenient to install on site, is free from welding, can adapt to the matched installation of various pre-buried pipes with different specifications in engineering, and not only can solve the problems of the existing built-in damping vibration attenuation device; meanwhile, the defects of the utility model patent with the publication number of CN201420040702.8 and the name of bridge inhaul cable damper are overcome.
The technical scheme for solving the problems is as follows: the utility model provides a cable or for jib self-adaptation damping vibration damper which characterized in that: the self-adaptive damping vibration attenuation device for the stay cable or the suspender comprises a pressing plate, a damping vibration attenuation ring, a T-shaped supporting leg, a correction pipe, a baffle and a high-strength bolt, wherein the damping vibration attenuation ring with the taper is a damping vibration attenuation ring with the taper, a through hole with the same cross section shape as that of the stay cable or the suspender is formed in the middle of the damping vibration attenuation ring, the T-shaped supporting leg comprises an arc-shaped supporting leg surface and a supporting leg positioned at the bottom of the supporting leg surface, the correction pipe is radially provided with n mounting grooves matched with the supporting legs of the T-shaped supporting leg, in the mounting state, the supporting legs of the n T-shaped supporting legs respectively penetrate through the mounting grooves, the supporting legs of the n T-shaped supporting legs form a circular cavity, the damping vibration attenuation ring with the taper and the pressing plate are sequentially arranged in the circular cavity formed by the arc-shaped supporting leg surfaces of the n T-shaped supporting legs, the baffle is positioned at the other end of the correction pipe, and the high-strength, The T-shaped supporting foot, the correcting pipe and the baffle are connected into a whole, and the value range of the n is as follows: n is an integer of 2 to 20 inclusive.
The further technical scheme is as follows: the external taper alpha of the damping vibration attenuation ring with the taper is the same as the longitudinal taper beta of the arm brace surface of the T-shaped arm brace.
The further technical scheme is as follows: the pressure plate is 2-piece type, 3-piece type, 4-piece type or 6-piece type, and hexagonal holes or round holes with the same shape as the cross section of the inhaul cable or the suspender are formed in the middle of the combination of the pieces.
The baffle is 2 pieces, 3 pieces, 4 pieces or 6 pieces, and hexagonal holes or round holes with the same shape as the cross section of the stay cable or the suspender are formed in the middle of the combination of the pieces.
Due to the structure, the utility model discloses an "self-adaptation damping vibration damper for cable or jib" has following beneficial effect:
the device has the advantages of simple structure, good energy consumption performance, good durability, convenient field installation, no welding and suitability for the matching installation of various pre-buried pipes with different specifications in engineering.
The adjusting range is large, large-scale adjustment can be carried out, small-scale adjustment can also be carried out, the device can be well adapted to eccentric installation, and the vibration reduction effect is good:
when there is serious off-centre in cable and buried pipe, the utility model relates to a cable or for jib self-adaptation damping vibration damper come the large scale adjustment or adjust the T type spike of different specifications to twist mode such as the little scale adjustment of degree of screwing of high strength bolt and drive T type spike and prop tight buried pipe inner wall, can install fast, need not to carry out other auxiliary operation or fill other materials and accomplish vibration damper's fixed and satisfy the damping requirement, therefore, the device can be fine adaptation eccentric mounting, the damping circle atress is even when guaranteeing the damping effect, avoided damping circle local stress too big and destroy the risk that leads to the damping function loss.
And thirdly, later maintenance and replacement are facilitated, and the management maintenance cost is low.
The utility model discloses a self-adaptation damping vibration damper for cable or jib forms by the on-the-spot equipment of separation part, when certain part damages, can directly remove and trade, manages to support the maintenance cost low.
The technical features of the "adaptive damping vibration-damping device for a guy cable or a boom" according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic view of the overall structure of an adaptive damping vibration-damping device for a guy cable or a suspender of the present invention;
FIG. 2 is one of the left side views of FIG. 1 (baffle 2 sheet);
FIG. 3 is one of the right side views of FIG. 1 (platen 2 sheet type);
fig. 4-1 to 4-3 are schematic structural views of the T-shaped supporting foot:
FIG. 4-1: right side view of fig. 4-2, fig. 4-2: front view, fig. 4-3: and (4) a perspective view.
Fig. 5 to 6 are schematic structural diagrams of 3-piece type and 4-piece type baffles (the second and third left side views of fig. 1):
FIG. 5: the baffle is 3 pieces, fig. 6: the baffle is 4 pieces;
fig. 7 to 8 are schematic structural diagrams of the pressing plate in 3-piece type and 4-piece type (second and third right views in fig. 1):
FIG. 7: the platen was 3-piece, fig. 8: the pressing plate is 4 pieces.
In the figure:
1-a pull rope or a suspension rod, 2-a pressure plate and 3-a damping vibration attenuation ring;
4-T type arm brace, 401-arm brace face, 402-arm brace leg;
5-a pre-buried pipe, 6-a correction pipe, 601-a mounting groove on the correction pipe;
7-baffle plate, 8-high-strength bolt.
Detailed Description
An adaptive damping vibration attenuation device for a stay cable or a suspender:
as shown in fig. 1-3, the adaptive damping vibration-damping device comprises a pressing plate 2, a damping vibration-damping ring 3, 6T-shaped supporting feet 4, a correcting pipe 6, a baffle 7 and a high-strength bolt 8, wherein the damping vibration-damping ring 3 is a tapered damping vibration-damping ring, the middle of the damping vibration-damping ring is provided with a through hole (which can be a hexagonal hole or a round hole as a guy cable, and can be a round hole, a square hole and the like as a hanger rod) with the same shape as the cross section of the hanger rod) with a guy cable or a hanger rod, the T-shaped supporting feet 4 comprise circular arc-shaped supporting foot surfaces 401 and supporting foot legs 402 (see fig. 4-1-4-3) positioned at the bottom of the supporting foot surfaces, the correcting pipe 6 is radially provided with 6 mounting grooves 601 matched with the supporting foot legs 402 of the T-shaped supporting feet, in a mounting state, the supporting foot surfaces 401 of the 6T-shaped supporting feet 4 respectively penetrate through the mounting grooves, install tapering damping vibration attenuation circle 3 in proper order in the round cavity that the arm-brace face of 6T type arm-braces is constituteed, clamp plate 2, baffle 7 is located the correction tube 6 other end, high strength bolt 8 passes baffle 7, tapering damping vibration attenuation circle 3 and clamp plate 2 take, with clamp plate 2, tapering damping vibration attenuation circle 3 takes, T type arm-brace 4, correction tube 6 and baffle 7 connect into a whole, place this self-adaptation damping vibration damper wholly in buried pipe or buried pipe 5 in advance again.
The external taper alpha of the damping vibration attenuation ring with the taper is the same as the longitudinal taper beta of the supporting foot surface of the T-shaped supporting foot 4 (see the figure 1 and the figure 4-2).
As the utility model discloses a transform, the number n of T type spike 4 can increase or reduce according to the size of cable or jib diameter, and the value scope of general above-mentioned n is: n is an integer of 2 to 20 inclusive.
As a transformation of the embodiment of the utility model, the outer tapering alpha of the damping vibration attenuation circle of taking tapering and the vertical tapering beta of spike face of T type spike 4 also can increase or reduce, generally, the value scope of the outer tapering alpha of damping circle and the vertical tapering beta of spike face of T type spike 4 is: between 5 and 10 degrees.
In the embodiment of the utility model, the baffle 7 and the pressing plate 2 are both in two halves (see fig. 2 and fig. 3), and the middle of the two pieces of combination is provided with a hexagonal hole which is slightly larger than the cross section of the inhaul cable; as a variation of the embodiment of the present invention, the pressing plate 2 and the baffle 7 may be a plurality of pieces, such as 3 pieces, four pieces, six pieces or eight pieces, and the combined middle of the pieces forms a hexagonal hole or a circular hole having the same shape as the cross section of the stay cable or the suspender; according to the engineering requirement (see fig. 5-8), wherein fig. 5 is a structural schematic diagram of the baffle plate in a 3-piece type, and fig. 6 is a structural schematic diagram of the baffle plate in a 4-piece type;
fig. 7 is a schematic structural diagram of a pressing plate in a 3-piece type, and fig. 8 is a schematic structural diagram of a pressing plate in a 4-piece type.
In the equipment the utility model discloses the through-hole or the screw hole of several parts such as clamp plate, the tapering damping vibration damping circle of taking, baffle will be guaranteed during self-adaptation damping vibration damper process on same axis to screw up the bolt and with clamp plate 2, take tapering damping vibration damping circle 3, T type spike 4, correction tube 6 and baffle 7 to connect and become a whole.
The pressing plate 2 is driven to move towards the direction of the baffle 7, namely the direction of the embedded pipe orifice, by symmetrically screwing 6-8 high-strength bolts on the end surface of the baffle, the damping vibration attenuation ring 3 attached to the pressing plate is extruded by the pressing plate to move towards the direction of the baffle 7, namely the direction of the embedded pipe orifice, meanwhile, the radial inner cavity of the damping vibration attenuation ring 3 can only expand outwards along the radial direction due to resistance force from a cable body, and the T-shaped supporting foot 4 matched with the damping vibration attenuation ring 3 moves outwards along the radial direction under the action of the radial external force of the damping vibration attenuation ring 3 until the T-shaped supporting foot supports the inner wall of the embedded pipe tightly.

Claims (4)

1. The utility model provides a cable or for jib self-adaptation damping vibration damper which characterized in that: the self-adaptive damping vibration attenuation device for the stay cable or the suspender comprises a pressing plate (2), a damping vibration attenuation ring (3), T-shaped supporting feet (4), a correction pipe (6), a baffle (7) and a high-strength bolt (8), wherein the damping vibration attenuation ring (3) with the taper is a damping vibration attenuation ring with the taper, a through hole with the cross section of the stay cable or the suspender is formed in the middle of the damping vibration attenuation ring, the T-shaped supporting feet (4) comprise circular arc-shaped supporting foot surfaces (401) and supporting foot legs (402) positioned at the bottom of the supporting foot surfaces, the correction pipe (6) is radially provided with n mounting grooves (601) matched with the supporting foot legs (402) of the T-shaped supporting feet, the supporting foot legs (402) of n T-shaped supporting feet (4) respectively penetrate through the mounting grooves and the supporting foot surfaces of n T-shaped supporting feet (4) to form a circular cavity, and the damping vibration attenuation ring (3) with the taper is sequentially installed in the circular cavity formed by the circular arc-shaped supporting foot surfaces of n T-, Clamp plate (2), baffle (7) are located correction pipe (6) other end, and baffle (7), tapered damping circle (3) and clamp plate (2) are passed in high strength bolt (8), with clamp plate (2), tapered damping circle (3), T type spike (4), correction pipe (6) and baffle (7) connect into a whole, the value scope of above-mentioned n is: n is an integer of 2 to 20 inclusive.
2. An adaptive damping vibration damping device for a cable or a boom according to claim 1, wherein: the external taper alpha of the damping vibration attenuation ring with the taper is the same as the longitudinal taper beta of the brace surface of the T-shaped brace (4).
3. An adaptive damping vibration damping device for a cable or a boom according to claim 1 or 2, wherein: the pressure plate (2) is 2-piece type, 3-piece type, 4-piece type or 6-piece type, and hexagonal holes or round holes with the same shape as the cross section of the inhaul cable or the suspender are formed in the middle of the combination of the pieces.
4. An adaptive damping vibration damping device for a cable or a boom according to claim 1 or 2, wherein: the baffle (7) is 2-piece type, 3-piece type, 4-piece type or 6-piece type, and hexagonal holes or round holes with the same shape as the cross section of the inhaul cable or the suspender are formed in the middle of the combination of the pieces.
CN202020957651.0U 2020-05-29 2020-05-29 Self-adaptive damping vibration attenuation device for inhaul cable or suspender Active CN213448103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020957651.0U CN213448103U (en) 2020-05-29 2020-05-29 Self-adaptive damping vibration attenuation device for inhaul cable or suspender

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Application Number Priority Date Filing Date Title
CN202020957651.0U CN213448103U (en) 2020-05-29 2020-05-29 Self-adaptive damping vibration attenuation device for inhaul cable or suspender

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481812A (en) * 2022-03-23 2022-05-13 南京工大交通科学研究院(滁州)有限公司 Self-adaptive eccentric shock absorber for steel strand inhaul cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481812A (en) * 2022-03-23 2022-05-13 南京工大交通科学研究院(滁州)有限公司 Self-adaptive eccentric shock absorber for steel strand inhaul cable

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