CN217536648U

CN217536648U - Friction becomes damping support

Info

Publication number: CN217536648U
Application number: CN202221643790.1U
Authority: CN
Inventors: 王同辉; 何帆; 高健; 周渊; 张栖浩; 张旭; 甘元江; 陈亮; 骆云秀
Original assignee: Sichuan Shuangjian Road & Bridge Machinery Co ltd
Current assignee: Sichuan Shuangjian Road & Bridge Machinery Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-04
Anticipated expiration: 2032-06-29

Abstract

The utility model is suitable for a road bridge engineering technical field provides a damping support becomes in friction, it is vice including upper bracket board, bottom suspension bedplate and friction, the friction is vice set up in the upper bracket board with between the bottom suspension bedplate, the friction is vice including first antifriction plate and second antifriction plate, first antifriction plate fixed mounting in the lower surface of upper bracket, just first antifriction plate is followed the slip direction of bottom suspension bedplate has different coefficient of friction, the second antifriction plate set up in the upper end of bottom suspension bedplate. Can produce horizontally lateral displacement between upper bracket and the undersetting, rub between first antifriction plate and the second antifriction plate in the displacement process, however for preventing the too big roof beam phenomenon that takes place of lateral displacement between pier stud and the roof beam body, consequently need restrict the lateral displacement volume between upper bracket and the undersetting, through the region of marking off different roughness in first antifriction plate bottom to make the coefficient of friction in different regions change.

Description

Friction becomes damping support

Technical Field

The utility model relates to a road bridge engineering especially relates to a friction becomes damping bearing.

Background

At present, domestic shock absorption and isolation support products have various types and have advantages and disadvantages. The friction pendulum vibration reduction and isolation support is used for preventing secondary internal stress of a beam body caused by temperature-variable displacement beam lifting or generating short-time impact effect due to earthquake resistance; the high-damping seismic isolation and reduction support also generates the damage of the secondary internal stress of a beam body when the temperature changes and displaces, the seismic effect of the conventional seismic isolation steel support is basically disposable, and the whole support needs to be replaced after the stop block is damaged, so that the cost is too high; the speed locker and the translational rotation separation type friction pendulum support have good shock absorption and isolation effects, but have high cost; therefore, a shock mount product with practical function, simple construction, low cost and good effect is needed.

The support structure can not leave the kinematic friction pair, the kinematic friction pair of the support popular in the market at present is all combined by the wear-resisting slide plate and the stainless steel plate, in the working state of the friction pair combination, the maximum contact area is the area of the wear-resisting slide plate, the friction coefficient of the whole combination in the motion process is a fixed value, the change cannot be made according to the motion working condition of the support, the structure is fixed, and the function is single.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a friction becomes shock-absorbing support, including upper bracket board, bottom suspension bedplate and friction pair, the friction pair set up in the upper bracket board with between the bottom suspension bedplate, the friction is vice including first antifriction plate and second antifriction plate, first antifriction plate fixed mounting in the lower surface of upper bracket, just first antifriction plate is followed the glide direction of bottom suspension bedplate has different coefficient of friction, the second antifriction plate set up in the upper end of bottom suspension bedplate.

Preferably, the device also comprises a rotating ball plate and a spherical sliding plate, wherein the lower surface of the rotating ball plate is a spherical cambered surface; the upper end of the lower support plate is provided with a groove matched with the spherical cambered surface, and the spherical sliding plate is arranged between the spherical cambered surface and the groove.

Preferably, the first wear plate comprises a first friction zone and a second friction zone of at least two different coefficients of friction, the second friction zone being disposed around the periphery of the first friction zone.

Preferably, the coefficient of friction of the second friction zone is greater than the coefficient of friction of the first friction zone.

Preferably, the first friction area is a rectangular area, and the second friction area is a square area.

Preferably, the second wear plate facing is matingly disposed within the first friction zone of the first wear plate.

Preferably, limit stops are respectively arranged at two ends of the upper support plate in the first direction, and a preset gap Φ 1 is formed between each limit stop and the wall surface of the lower support plate in the first direction.

Preferably, limit stops are respectively arranged at two ends of the upper support plate in the second direction, a preset gap Φ 2 is formed between the limit stops and the wall surface of the lower support plate in the second direction, and the first direction is orthogonal to the second direction.

Preferably, the first wear plate is disposed between the limit stops in the first direction and the limit stops in the second direction, and the limit stops in the first direction and the limit stops in the second direction are fixed to the upper bracket plate by fixing bolts.

Preferably, the surfaces of the limit stop in the first direction and the limit stop in the second direction opposite to the lower support plate are fixedly provided with wear-resistant blocks.

Has the advantages that:

1. the utility model discloses in, can produce horizontally lateral displacement between upper bracket and the undersetting, rub between first antifriction plate of displacement in-process and the second antifriction plate, the earthquake energy will be consumed in the friction process, nevertheless for preventing the too big emergence of lateral displacement between pier stud and the roof beam body roof beam phenomenon that falls, consequently need restrict the lateral displacement volume between upper bracket and the undersetting the utility model discloses in, through the region of marking off different roughness in first antifriction plate bottom to make the coefficient of friction in different regions change.

2. The utility model discloses in, when the lateral displacement of upper bracket and undersetting exceeded the regional scope of first friction, second antifriction plate and the regional contact of second friction, the second antifriction plate is greater than the friction power consumption of second antifriction plate in the regional sliding friction of second friction and consumes energy in the first friction region to can further restrain the lateral displacement between upper bracket and the undersetting, reach the purpose of preventing the roof beam that falls.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a bidirectional friction damping support provided in an embodiment of the present invention;

fig. 2 is a first schematic view of a friction pair provided by an embodiment of the present invention;

FIG. 3 is a second schematic view of a friction pair according to an embodiment of the present invention;

fig. 4 is a first schematic view of a unidirectional movable structure of a friction-variable damping support according to an embodiment of the present invention;

fig. 5 is a second schematic view of a unidirectional moving structure of a friction damping support according to an embodiment of the present invention;

fig. 6 is a schematic view of a fixed friction damping support structure provided by the embodiment of the present invention.

In the drawings:

10. an upper support plate; 11. a limit stop block; 12. fixing the bolt; 20. a lower support plate; 210. a wear-resistant block; 30. rotating the ball plate; 31. a spherical cambered surface; 40. a first wear plate; 401. a first friction zone; 402. a second friction zone; 41. a second wear plate; 50. a spherical surface skateboard.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.

Please refer to fig. 1, the utility model provides a damping support is become to friction, including upper bracket board 10, bottom suspension bedplate 20 and the friction is vice, the friction is vice set up in upper bracket board 10 with between the bottom suspension bedplate 20, the friction is vice to include first antifriction plate 40 and second antifriction plate 41, first antifriction plate 40 fixed mounting in the lower surface of upper bracket, just first antifriction plate 40 is followed the slip direction of bottom suspension bedplate 20 has different coefficient of friction, second antifriction plate 41 set up in the upper end of bottom suspension bedplate 20. It should be noted that the upper support plate 10 is used for connecting a beam body (external structure is not shown), and the lower support plate 20 is connected with a pier stud (external structure is not shown); when taking place the earthquake, lead to producing horizontally lateral displacement between pier stud and the roof beam body, rub between first antifriction plate 40 and the second antifriction plate 41 in the displacement process, the earthquake energy will be consumed in the friction process, nevertheless for preventing the too big roof beam phenomenon that takes place of lateral displacement between pier stud and the roof beam body, consequently need restrict the lateral displacement volume between the roof beam body and the pier stud the utility model discloses in, through the region of marking off different roughness in first antifriction plate 40 bottom to make the coefficient of friction in different regions change.

Specifically, in the present invention, the first wear plate 40 includes a first friction area 401 and a second friction area 402 having at least two different friction coefficients, and the second friction area 402 is disposed around the periphery of the first friction area 401. Referring to fig. 1 to 3, fig. 2 a and B show the fit of two differently shaped second wear plates 41 to the first wear plate 40, although in other embodiments the second wear plates 41 may be shaped differently; the second wear plate 41 is arranged in a snug fit in the first friction area 401 of the first wear plate 40. Generally, the transverse displacement between the beam body and the pier stud can be decomposed into two mutually orthogonal directions, so that the first friction area 401 can be set to be a rectangular area as a limitation on the transverse movement between the beam body and the pier stud, and the second friction area 402 can be correspondingly set to be a rectangular area. Wherein the friction coefficient of the second friction area 402 is greater than the friction coefficient of the first friction area 401, so that in a smaller lateral temperature variation displacement, the second wear plate 41 moves only in the first friction area 401, and is arranged to move laterally by a distance δ 1 in the first direction and δ 2 in the second direction; when the lateral displacement (i.e. the lateral displacement of the upper support and the lower support) of the beam body and the pier stud exceeds the range of the first friction region 401, the second wear-resisting plate 41 contacts with the second friction region 402, and the friction energy consumption of the sliding friction of the second wear-resisting plate 41 in the second friction region 402 is greater than that of the second wear-resisting plate 41 in the first friction region 401, so that the lateral displacement between the pier stud and the beam body can be further inhibited, and the purpose of preventing the beam from falling is achieved.

Further, the friction-change damping support further comprises a rotating ball plate 30 and a spherical sliding plate 50, wherein the lower surface of the rotating ball plate 30 is a spherical cambered surface 31; the upper end of the lower support plate 20 is provided with a groove adapted to the spherical arc surface 31, and the spherical sliding plate 50 is arranged between the spherical arc surface 31 and the groove. It should be noted that, the displacement between the beam body and the pier stud is not only the transverse displacement but also the angular displacement, and if the angular displacement does not solve the problem, the beam lifting phenomenon will occur; therefore, the relative rotation between the beam body and the pier stud is realized by the matching of the grooves at the upper ends of the rotating spherical plate 30, the spherical sliding plate 50 and the lower support plate 20, so that the beam lifting problem is solved.

Referring to fig. 4 and 5, in order to limit the movement of the beam and the pier stud in a single direction, limit stops 11 are respectively disposed at two ends of the upper support plate 10 in the first direction, a preset gap Φ 1 is formed between the limit stops 11 and the wall surface of the lower support plate 20 in the first direction, and the preset gap Φ 1 is selected according to standard technical parameters in the engineering field, so that the beam and the pier stud have a transverse displacement space of Φ in the arrow direction shown in fig. 5, and the Φ is determined by engineering design.

Similarly, two ends of the second direction of the upper support plate 10 may be respectively provided with a limit stop 11, the limit stop 11 and the lower support plate 20 have a preset gap Φ 2 between the walls of the second direction, the first direction is orthogonal to the second direction, and the selection of the preset gap Φ 2 adopts standard technical parameters in the engineering field.

In order to further limit the lateral movement of the beam body and the pier stud, as shown in fig. 6, limit stops 11 may be respectively disposed at two ends of the upper support plate 10 in the first direction and the second direction, and the distance between the circumferential end surface of the lower support plate 20 and the limit stops 11 in the first direction and the distance between the circumferential end surface of the lower support plate and the limit stops 11 in the second direction may be set.

Further, a wear-resistant block 210 is fixedly disposed on the surface of the first direction limit stop 11 and the second direction limit stop 11 opposite to the lower seat plate 20. The wear-resistant block 210 prevents the limit stops 11 in the first direction and the limit stops 11 in the second direction from directly wearing the lower support plate 20, so that the preset clearance Φ 1 and the preset clearance Φ 2 are increased, and a safety risk is generated.

The first wear plate 40 is disposed between the first direction limit stop 11 and the second direction limit stop 11, and the first direction limit stop 11 and the second direction limit stop 11 are fixed to the upper support plate 10 by fixing bolts 12. Therefore, the first wear plate 40 and the upper support plate 10 are fixedly installed, but in other embodiments, the first wear plate 40 and the upper support plate 10 may be fixedly connected into a whole by using various methods such as screw riveting, grooving, wedging, bonding, welding, and the like.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a friction becomes damping support which characterized in that: including upper bracket board (10), undersetting board (20) and friction are vice, the friction is vice set up in upper bracket board (10) with between undersetting board (20), the friction is vice including first antifriction plate (40) and second antifriction plate (41), first antifriction plate (40) fixed mounting in the lower surface of upper bracket, just first antifriction plate (40) are followed the slip direction of undersetting board (20) has different coefficient of friction, second antifriction plate (41) set up in the upper end of undersetting board (20).

2. A frictionally variable damping mount as claimed in claim 1 wherein: the spherical sliding plate is characterized by further comprising a rotary spherical plate (30) and a spherical sliding plate (50), wherein the lower surface of the rotary spherical plate (30) is a spherical cambered surface (31); the upper end of the lower support plate (20) is provided with a groove matched with the spherical cambered surface (31), and the spherical sliding plate (50) is arranged between the spherical cambered surface (31) and the groove.

3. A frictionally variable damping mount as claimed in claim 2 wherein: the first wear plate (40) comprises a first friction zone (401) and a second friction zone (402) having at least two different coefficients of friction, the second friction zone (402) being arranged around the periphery of the first friction zone (401).

4. A tribological damping mount according to claim 3, wherein: the coefficient of friction of the second friction zone (402) is greater than the coefficient of friction of the first friction zone (401).

5. A frictionally variable damping mount as claimed in claim 3 wherein: the first friction area (401) is a rectangular area, and the second friction area (402) is a clip-shaped area.

6. A tribological damping mount according to claim 4, wherein: the second wear plate (41) is arranged in a close-fitting manner in the first friction area (401) of the first wear plate (40).

7. A tribological damping mount according to claim 1, wherein: the two ends of the upper support plate (10) in the first direction are respectively provided with a limit stop (11), and a preset gap phi 1 is formed between the limit stop (11) and the wall surface of the lower support plate (20) in the first direction.

8. A frictionally variable damping mount as claimed in claim 7 wherein: and two ends of the upper support plate (10) in the second direction are respectively provided with a limit stop (11), a preset gap phi 2 is formed between the limit stop (11) and the wall surface of the lower support plate (20) in the second direction, and the first direction is orthogonal to the second direction.

9. A frictionally variable damping mount as claimed in claim 8 wherein: the first wear plate (40) is arranged between a limit stop (11) in a first direction and a limit stop (11) in a second direction, and the limit stop (11) in the first direction and the limit stop (11) in the second direction are fixed to the upper support plate (10) through fixing bolts (12).

10. A frictionally variable damping mount as claimed in claim 8 wherein: and wear-resistant blocks (210) are fixedly arranged on the surfaces of the limit stop blocks (11) in the first direction and the limit stop blocks (11) in the second direction opposite to the lower support plate (20).