CN107035202B - Gear transmission friction damper and assembly construction process - Google Patents

Gear transmission friction damper and assembly construction process Download PDF

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Publication number
CN107035202B
CN107035202B CN201710403352.5A CN201710403352A CN107035202B CN 107035202 B CN107035202 B CN 107035202B CN 201710403352 A CN201710403352 A CN 201710403352A CN 107035202 B CN107035202 B CN 107035202B
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China
Prior art keywords
angle steel
gear
rack
hole
plate
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CN107035202A (en
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任文杰
吴书良
王利强
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Hebei University of Technology
Tianjin University of Technology
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Hebei University of Technology
Tianjin University of Technology
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Vibration Dampers (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention belongs to the technical field of civil engineering, and relates to a gear transmission friction damper and an assembly construction process. The mainboard is located down between angle steel, the back angle steel of connecting plate and separation arrangement, and lower friction disc pastes in the upper surface of connecting plate down, and upper friction disc pastes in the lower surface of back angle steel and preceding angle steel, and triple gear, last rack, lower rack and bi-link are located back angle steel and preceding angle steel in the middle of, and lower rack pastes in the mainboard recess, and upward the rack is pasted in the bi-link recess, and U-shaped connecting piece welds in bi-link tip. The displacement amplification type friction damper amplifies the sliding friction displacement of the damper by utilizing the gear transmission theory, and has strong energy consumption capability.

Description

Gear transmission friction damper and assembly construction process
Technical Field
The invention belongs to the technical field of civil engineering, and relates to an energy dissipation and shock absorption device, in particular to a friction damper for amplifying displacement through gears.
Background
The energy dissipation and shock absorption technology is to connect dampers in parallel in the side force resisting component of the structure, and most of earthquake energy is consumed by the dampers, so that the safety of the main structure is ensured, and the energy dissipation and shock absorption technology is an active and effective anti-seismic strategy. The displacement of the existing damper is generally equal to the relative displacement of the connecting point when the damper works, so the damper is preferably arranged at a position with larger relative deformation of the structure, for example, the structure is small in relative deformation, and the damper cannot effectively exert the energy consumption function due to small displacement. To this end, the scholars have developed new techniques to make the displacement of the damper larger than the relative displacement of the connection point, such as: the patent with the publication number of CN 104314192A discloses a damper with a displacement amplifying device, namely, the displacement of the damper is increased by utilizing the lever principle, but the lever transmission efficiency is lower, and the larger displacement can be obtained only when the size of the damper is large, so that the inconvenience of installation and construction is caused, and the using function of a building is also influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the gear transmission friction damper which can realize that the working displacement of the damper is larger than the relative displacement of a connecting point by utilizing the gear transmission principle in the earthquake, has good energy consumption capability, and has simple structure and convenient installation.
The technical scheme adopted for solving the technical problems is as follows:
the gear transmission friction damper comprises a lower connecting plate, a lower friction plate, a main plate, an upper friction plate, rear angle steel, front angle steel, a lower rack, a triple gear, a double connecting rod, an upper rack, a U-shaped connecting piece, a high-strength bolt, a limit bolt, a gear rotating shaft and a positioning pin; the main board is positioned between the lower connecting plate and the front angle steel and the rear angle steel which are separately arranged, the lower friction plate is stuck on the upper surface of the lower connecting plate by epoxy resin, the upper friction plate is stuck on the lower surfaces of the rear angle steel and the front angle steel by epoxy resin, and the lower connecting plate, the main board and the rear angle steel are connected with the front angle steel by high-strength bolts; the triple gear, the upper rack, the lower rack and the double connecting rod are positioned between the rear angle steel and the front angle steel, the gear rotating shaft penetrates through the front angle steel, the triple gear and the rear angle steel, and the positioning pin and the limiting bolt penetrate through the front angle steel, the double connecting rod and the rear angle steel; the upper surface of the main board is provided with a groove, the lower surface of the double connecting rod is provided with a groove, the middle of the upper friction plate is provided with a rack hole, the lower rack is stuck in the groove of the main board by epoxy resin, the upper rack is stuck in the groove of the double connecting rod by epoxy resin, and the U-shaped connecting piece is welded at the end part of the double connecting rod.
The triple gear is composed of a first gear and a second gear, the radius of the first gear is larger than that of the second gear, the first gear is meshed with the lower rack, and the second gear is meshed with the upper rack.
The gear transmission friction damper comprises a friction unit and a gear transmission unit. The friction unit consists of a lower connecting plate, a lower friction plate, a main board, an upper friction plate, rear angle steel, front angle steel and a high-strength bolt; the gear transmission unit consists of a lower rack, a triple gear, a double connecting rod, an upper rack, a U-shaped connecting piece, a gear rotating shaft and a limit bolt. The gear transmission friction damper works as follows:
(1) the high-strength bolt connects the lower connecting plate adhered with the lower friction plate, the main board and the rear angle steel adhered with the upper friction plate with the front angle steel, and the friction force of the friction unit can be adjusted by applying positive pressure.
(2) Under the action of load, the double connecting rods adhered with the upper racks move, and the upper racks drive the second gear to rotate so as to drive the triple gear to rotate; when the meshing force of the first gear and the lower rack is larger than the maximum static friction force of the friction unit, the main board adhered with the lower rack can slide relatively with the lower connecting plate adhered with the lower friction plate, the front angle steel adhered with the upper friction plate and the rear angle steel, so that friction force dissipation energy is generated. Since the first gear and the second gear have the same angular velocity, let r 1 And r 2 Respectively representing a first gear radius and a second gear radius, and knowing that the ratio of the sliding displacement of the friction unit to the displacement of the double connecting rod is r according to the gear transmission principle 1 /r 2 The displacement amplifying function of the gear transmission friction damper is realized.
The beneficial effects of the invention are as follows: (1) the gear transmission friction damper amplifies the sliding friction displacement of the damper by utilizing the gear transmission principle, and has the advantages of strong energy consumption and stable working performance; (2) the gear transmission friction damper is made of steel except the friction plate, and is convenient to manufacture and low in cost; (3) the gear transmission friction damper is connected with the engineering structure through bolts and bolts, so that the gear transmission friction damper is convenient to construct and easy to overhaul and replace.
Drawings
Fig. 1 is a schematic view of a geared friction damper.
Fig. 2 is a schematic view of the friction unit of fig. 1.
Fig. 3 is a schematic view of the gear transmission unit of fig. 1.
Fig. 4 is a schematic view of the lower connecting piece in fig. 1.
Fig. 5 is a schematic view of the lower friction plate of fig. 1.
Fig. 6 is a schematic diagram of the motherboard of fig. 1.
Fig. 7 is a schematic diagram showing adhesion between the main board and the lower rack in fig. 1.
Fig. 8 is a schematic view of the upper friction plate of fig. 1.
Fig. 9 is a schematic view of the rear angle of fig. 1.
Fig. 10 is a schematic view of the front angle of fig. 1.
Fig. 11 is a schematic diagram of the triple gear of fig. 1.
Fig. 12 is a schematic view of the double link of fig. 3 welded with a U-shaped connector.
Fig. 13 is a schematic illustration of the attachment of the double link to the upper rack of fig. 1.
Fig. 14 is a schematic view of the gear shaft of fig. 1.
FIG. 15 is a schematic view of the dowel of FIG. 1
In the figure, the lower connecting plate 1-, the lower friction plate 2-, the main plate 3-, the upper friction plate 4-, the rear angle steel 5-, the front angle steel 6-, the lower rack 7-, the triple gear 8-and the double-link 9-and the upper rack 10-and the upper U-shaped connecting piece 11-and the lower connecting plate 12-and the high-strength bolts 13-and the limit bolts 14-and the rotary shaft 15-and the locating pins 401-and the lower connecting plate bolt holes 402-and the lower connecting plate fixing bolt holes 501-and the lower friction plate bolt holes 601-and the main plate long slot holes 602-and the main plate grooves 801-and the upper friction plate bolt holes 802-and the rack holes 901-and the rear angle steel limit holes 902-and the rear angle steel bolt holes 903-and the rear angle steel locating holes 904-and the front angle steel limit holes 1002-and the front angle steel bolt holes 1003-and the front angle steel locating holes 1101-and the first gear 1101-and the second gear 1102-and the double-and the triple gear main shaft holes 1201-and the double-link limit holes 1202-and the double-link grooves 1203-and the bolt holes.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
According to the illustrated in fig. 1 and 3, the gear transmission friction damper comprises a lower connecting plate 1, a lower friction plate 2, a main plate 3, an upper friction plate 4, a rear angle steel 5, a front angle steel 6, a lower rack 7, a triple gear 8, a double connecting rod 9, an upper rack 10, a U-shaped connecting piece 11, a high-strength bolt 12, a limit bolt 13, a gear rotating shaft 14 and a positioning pin 15.
As shown in fig. 6, 7, 12 and 13, the upper surface of the main plate 3 is grooved, the lower surface of the double link 9 is grooved, the middle of the upper friction plate 4 is provided with a rack hole 802, the lower rack 7 is adhered to the main plate groove 602 by epoxy resin, and the upper rack 10 is adhered to the double link groove 1202 by epoxy resin.
As shown in fig. 2, 4, 5, 6, 8, 9 and 10, two high-strength bolts 12 pass through the rear angle steel bolt hole 903, the upper friction plate bolt hole 801, the main plate long slot hole 601, the lower friction plate bolt hole 501 and the lower connection plate bolt hole 401, and the other two high-strength bolts 12 pass through the front angle steel bolt hole 1003, the upper friction plate bolt hole 801, the main plate long slot hole 601, the lower friction plate bolt hole 501 and the lower connection plate bolt hole 401.
As shown in fig. 3, 11 and 12, the triple gear 8 is composed of a first gear 1101 and a second gear 1102, the radius of the first gear 1101 is larger than that of the second gear 1102, the first gear 1101 is meshed with the lower rack 7, the second gear 1102 is meshed with the upper rack 10, and the gear shaft 14 passes through the front angle steel shaft hole 1002, the triple gear shaft hole 1103 and the rear angle steel shaft hole 902.
As shown in fig. 1, 14 and 15, the double link 9 is located intermediate the rear angle 5 and the front angle 6. The positioning pin 15 passes through the front angle steel positioning hole 1004, the double-link positioning hole 1204 and the rear angle steel positioning hole 904, and the two limiting bolts 14 pass through the front angle steel limiting hole 1001, the double-link limiting hole 1201 and the rear angle steel limiting hole 901.
As shown in fig. 2, 5, 8, 9 and 10, the lower friction plate 2 is adhered to the upper surface of the lower connecting plate 1 by epoxy resin, and the upper friction plate 4 is adhered to the lower surfaces of the rear angle steel 5 and the front angle steel 6 by epoxy resin, and the rear angle steel 5 and the front angle steel 6 are identical in construction and size.
The assembly construction process of the gear transmission friction damper is as follows:
(1) the lower friction plate 2 is stuck to the upper surface of the lower connecting plate 1 by epoxy resin, the upper friction plate 4 is stuck to the lower surfaces of the rear angle steel 5 and the front angle steel 6, the lower rack 7 is stuck to the main board groove 602, the upper rack 10 is stuck to the double connecting rod groove 1202, and the U-shaped connecting piece 12 is welded at the end part of the double connecting rod 10;
(2) two high-strength bolts 12 pass through the rear angle steel bolt holes 903, the upper friction plate bolt holes 801, the main plate long slot holes 601, the lower friction plate bolt holes 501 and the lower connecting plate bolt holes 401, the other two high-strength bolts 12 pass through the front angle steel bolt holes 1003, the upper friction plate bolt holes 801, the main plate long slot holes 601, the lower friction plate bolt holes 501 and the lower connecting plate bolt holes 401, the hole site centers of all the components are coaxial, and the high-strength bolts 12 are preloaded to apply positive pressure;
(3) the triple gear 8 is positioned between the rear angle steel 5 and the front angle steel 6, the gear rotating shaft 14 passes through the front angle steel rotating shaft hole 1002, the triple gear center shaft hole 1103 and the rear angle steel rotating shaft hole 902 and is fixed by nuts, and the first gear 1101 is meshed with the lower rack 7;
(4) the double connecting rod 9 is positioned between the rear angle steel 5 and the front angle steel 6, the positioning pin 15 passes through the front angle steel positioning hole 1004, the double connecting rod positioning hole 1204 and the rear angle steel positioning hole 904, the two limiting bolts 13 pass through the front angle steel limiting hole 1001, the double connecting rod limiting hole 1201 and the rear angle steel limiting hole 901, and the second gear 1102 is meshed with the upper rack 10;
(5) the lower connecting plate 1 of the gear transmission friction damper is connected with the engineering structure through a lower connecting plate fixing bolt hole 402, and the U-shaped connecting piece 12 is connected with the engineering structure through a bolt hole 1203;
(6) the positioning pin 15 is pulled out and put into an operable state.

Claims (2)

1. Gear drive friction damper, its characterized in that: the novel friction plate comprises a lower connecting plate (1), a lower friction plate (2), a main plate (3), an upper friction plate (4), rear angle steel (5), front angle steel (6), a lower rack (7), a triple gear (8), a double connecting rod (9), an upper rack (10), a U-shaped connecting piece (11), a high-strength bolt (12), a limit bolt (13), a gear rotating shaft (14) and a positioning pin (15); the main board (3) is positioned between the lower connecting plate (1) and the front angle steel (6) and the rear angle steel (5) which are arranged in a separated mode, the lower friction plate (2) is adhered to the upper surface of the lower connecting plate (1) by epoxy resin, the upper friction plate (4) is adhered to the lower surfaces of the rear angle steel (5) and the front angle steel (6) by epoxy resin, and the high-strength bolts (12) are used for connecting the lower connecting plate (1) adhered with the lower friction plate (2), the main board (3) and the rear angle steel (5) adhered with the upper friction plate (4) with the front angle steel (6); the triple gear (8), the upper rack (10), the lower rack (7) and the double connecting rod (9) are positioned between the rear angle steel (5) and the front angle steel (6), the gear rotating shaft (14) penetrates through the front angle steel (6), the triple gear (8) and the rear angle steel (5), and the positioning pin (15) and the limiting bolt (13) penetrate through the front angle steel (6), the double connecting rod (9) and the rear angle steel (5) respectively; the triple gear (8) is composed of a first gear (1101) and a second gear (1102), the radius of the first gear (1101) is larger than that of the second gear (1102), the first gear (1101) is meshed with the lower rack (7), and the second gear (1102) is meshed with the upper rack (10); the upper surface of the main board (3) is provided with a groove, the lower surface of the double connecting rod (9) is provided with a groove, the middle of the upper friction plate (4) is provided with a rack hole (802), the lower rack (7) is stuck in the main board groove (602) by epoxy resin, the upper rack (10) is stuck in the double connecting rod groove (1202) by epoxy resin, and the U-shaped connecting piece (11) is welded at the end part of the double connecting rod (9); the double connecting rod (9) is positioned on the inner sides of the front angle steel (6) and the rear angle steel (5), the positioning pin (15) penetrates through the front angle steel positioning hole (1004), the double connecting rod positioning hole (1204) and the rear angle steel positioning hole (904), and the limiting bolt (13) penetrates through the front angle steel limiting hole (1001), the double connecting rod limiting hole (1201) and the rear angle steel limiting hole (901).
2. The assembly construction method of the gear transmission friction damper according to claim 1, wherein:
(1) the lower friction plate (2) is stuck to the upper surface of the lower connecting plate (1) by adopting epoxy resin, the upper friction plate (4) is stuck to the lower surfaces of the rear angle steel (5) and the front angle steel (6), the lower rack (7) is stuck to the inside of the main board groove (602), the upper rack (10) is stuck to the inside of the double-connecting-rod groove (1202), and the U-shaped connecting piece (11) is welded at the end part of the double connecting rod (9);
(2) two high-strength bolts (12) penetrate through the rear angle steel bolt holes (903), the upper friction plate bolt holes (801), the main plate long slot holes (601), the lower friction plate bolt holes (501) and the lower connecting plate bolt holes (401), the other two high-strength bolts (12) penetrate through the front angle steel bolt holes (1003), the upper friction plate bolt holes (801), the main plate long slot holes (601), the lower friction plate bolt holes (501) and the lower connecting plate bolt holes (401), the hole centers of all the components are coaxial, and positive pressure is applied to the high-strength bolts (12) in a pre-tightening mode;
(3) the triple gear (8) is positioned between the rear angle steel (5) and the front angle steel (6), the gear rotating shaft (14) passes through the front angle steel rotating shaft hole (1002), the triple gear middle shaft hole (1103) and the rear angle steel rotating shaft hole (902) and is fixed by nuts, and the first gear (1101) is meshed with the lower rack (7);
(4) the double connecting rod (9) is positioned between the rear angle steel (5) and the front angle steel (6), the positioning pin (15) passes through the front angle steel positioning hole (1004), the double connecting rod positioning hole (1204) and the rear angle steel positioning hole (904), the two limiting bolts (13) pass through the front angle steel limiting hole (1001), the double connecting rod limiting hole (1201) and the rear angle steel limiting hole (901), and the second gear (1102) is meshed with the upper rack (10);
(5) the lower connecting plate (1) of the gear transmission friction damper is connected with the engineering structure through a lower connecting plate fixing bolt hole (402), and the U-shaped connecting piece (11) is connected with the engineering structure through a pin bolt hole (1203);
(6) the positioning pin (15) is pulled out to enter a working state.
CN201710403352.5A 2017-05-27 2017-05-27 Gear transmission friction damper and assembly construction process Active CN107035202B (en)

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Publication number Priority date Publication date Assignee Title
CN108166642A (en) * 2018-01-19 2018-06-15 河北工业大学 Gear mild steel damper and assembling constructing method
CN108049689A (en) * 2018-01-19 2018-05-18 河北工业大学 Self-resetting gear shears damper and assembling constructing method
CN108086515A (en) * 2018-01-19 2018-05-29 河北工业大学 The efficient shearing damp device of gear and assembling constructing method
CN109680826A (en) * 2019-01-21 2019-04-26 河北工业大学 Speed scale-up version viscous damping wall and assembling constructing method
CN109736467B (en) * 2019-02-28 2020-07-17 长安大学 Bidirectional damping hinge device and damping method
CN115538835B (en) * 2022-11-03 2024-01-05 北京工业大学 Self-resetting rotary amplifying friction energy dissipation damper

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CN104499597A (en) * 2014-12-31 2015-04-08 长安大学 Viscous damper input displacement rate increasing device
CN204385942U (en) * 2014-12-31 2015-06-10 长安大学 A kind of circumscribed damper displacement amplifying device
CN204592193U (en) * 2015-02-03 2015-08-26 广元天英精密传动系统有限公司 Miniature gears damper

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WO2001098607A1 (en) * 2000-06-16 2001-12-27 Stefano Berton Displacement amplification method and apparatus for passive energy dissipation in seismic applications
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Publication number Priority date Publication date Assignee Title
CN1499105A (en) * 2002-11-12 2004-05-26 光洋密封技术株式会社 Friction damper and gearing driving gear using same
CN104499597A (en) * 2014-12-31 2015-04-08 长安大学 Viscous damper input displacement rate increasing device
CN204385942U (en) * 2014-12-31 2015-06-10 长安大学 A kind of circumscribed damper displacement amplifying device
CN204592193U (en) * 2015-02-03 2015-08-26 广元天英精密传动系统有限公司 Miniature gears damper

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