CN212316652U

CN212316652U - Vibration damper in public road bridge roof beam concatenation construction

Info

Publication number: CN212316652U
Application number: CN202020653361.7U
Authority: CN
Inventors: 李东洋; 王兴琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-01-08
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a vibration damper in the splicing construction of highway bridges, which comprises a bottom plate, a movable plate and a top plate; the improved screw rod type wire drawing machine is characterized in that a spring is arranged between the top plate and the movable plate, a screw rod is arranged between the movable plate and the bottom plate, the movable plate is passed through the upper end of the screw rod, a screw rod nut is sleeved outside a joint of the screw rod and the movable plate, a jack is arranged at the bottom end of the screw rod and penetrates through the screw rod, inserting barrels are arranged at four corners of the upper side of the movable plate, sliding barrels are arranged on the periphery of the upper side of the movable plate, the upper end of each inserting barrel penetrates through the sliding barrel to stretch out the movable plate, inserting rods are arranged at four corners of the bottom end of. The utility model discloses during the regulation, through rotatory lead screw, the lead screw passes through screw-nut's effect, drives the movable plate and upwards or removes downwards, through adjusting spring's the exhibition condition to change the damping coefficient of spring, convenience very.

Description

Vibration damper in public road bridge roof beam concatenation construction

Technical Field

The utility model relates to a bridge damping equipment technical field specifically is a damping device in public road bridge roof beam concatenation construction.

Background

The highway bridge mostly adopts concatenation formula structure, need change it when a certain section bridge damages, in the new and old bridge concatenation work progress wet joint concrete pouring initial stage at the concatenation position, because wet joint concrete intensity is lower, the vehicle arouses old bridge vibrations and new bridge not shake through old bridge floor and cause wet joint concrete internal quality hidden danger easily, because the position of use is different, damping coefficient requirement of vibration damper is different, but current vibration damper can't adjust when using damping coefficient, it is inconvenient to wait to expect for the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a damping device in public road bridge roof beam concatenation construction to but solve current damping device damping coefficient when using and can't adjust, treat the inconvenient problem of material for the use.

In order to achieve the above object, the utility model provides a following technical scheme: a vibration damper in the splicing construction of highway bridges comprises a bottom plate, a movable plate and a top plate; the top plate is positioned at the bottom end of the bottom plate, the movable plate is positioned between the top plate and the bottom plate, a spring is arranged between the top plate and the movable plate, the top end and the upper side of the movable plate are arranged at the upper end and the lower end of the spring, a lead screw is arranged between the movable plate and the bottom plate, a bearing is sleeved at the bottom end of the lead screw, the bearing is welded at the upper side of the bottom plate, the upper end of the lead screw penetrates through the movable plate, a lead screw nut is sleeved at the outer side of the joint of the lead screw and the movable plate, the lead screw nut is welded at the upper side of the movable plate, a jack is arranged at the bottom end of the lead screw and penetrates through the lead screw, a sleeve is arranged at the four corners of the upper side of the movable plate, the upper end of the inserted bar is welded at the bottom end of the top plate, the bottom end of the inserted bar is inserted into the inserting barrel, and the outer side among the bottom plate, the moving plate and the top plate is pasted with a flexible connecting piece.

Preferably, the inserted bar is located and is inserted a section of thick bamboo inner segment bottom and be provided with the baffle, and the welding of baffle upper end is in inserted bar bottom position.

Preferably, insert a section of thick bamboo upper end and be provided with the limiting plate, and the welding of limiting plate bottom is inserted a section of thick bamboo upper end position.

Preferably, the outer side of the sliding cylinder is provided with a fixing bolt, the fixing bolt is rotatably installed inside the sliding cylinder through threads, and the fixing bolt penetrates through the sliding cylinder and is in touch connection with the inserting cylinder.

Preferably, a support is arranged at the upper end of the moving plate at the center of the spring, and the bottom end of the support is welded on the upper side of the moving plate.

Preferably, the upper side of the top plate is provided with a soft metal pad, and the bottom end of the soft metal pad is welded on the upper side of the top plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. during adjustment, the screw rod is rotated, the moving plate is driven to move upwards or downwards by the screw rod under the action of the screw rod nut, and the damping coefficient of the spring is changed by adjusting the stretching condition of the spring, so that the adjustment is very convenient;

2. the soft metal pad is soft in texture, and when the top plate is installed, the soft metal pad deforms, and a gap between the top plate and the installation base body is filled, so that the top plate is installed more stably;

3. the support column is used for limiting the moving range of the spring, so that the vibration reduction effect of the spring is prevented from being influenced due to the large contraction degree of the spring when the spring is used;

4. the setting of gim peg can be fixed the movable plate after the regulation, avoids appearing the phenomenon of smooth silk between lead screw and the screw-nut when using.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the moving plate of the present invention;

fig. 3 is a schematic structural view of the insertion tube of the present invention.

In the figure: 1. a base plate; 2. a screw rod; 3. moving the plate; 4. a feed screw nut; 5. a jack; 6. a pillar; 7. a spring; 8. a top plate; 9. a soft metal pad; 10. inserting a rod; 11. a limiting plate; 12. a slide cylinder; 13. inserting a cylinder; 14. a baffle plate; 15. a bearing; 16. and (6) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, in an embodiment of the present invention, a vibration damping device for splicing construction of a highway bridge includes a bottom plate 1, a movable plate 3 and a top plate 8; the top plate 8 is positioned at the bottom end of the bottom plate 1, the movable plate 3 is positioned between the top plate 8 and the bottom plate 1, a spring 7 is arranged between the top plate 8 and the movable plate 3, the bottom end of the top plate 8 and the upper side of the movable plate 3 are arranged at the upper and lower ends of the spring 7, a screw rod 2 is arranged between the movable plate 3 and the bottom plate 1, a bearing 15 is sleeved at the bottom end of the screw rod 2, the bearing 15 is welded at the upper side of the bottom plate 1, the upper end of the screw rod 2 penetrates through the movable plate 3, a screw rod nut 4 is sleeved at the outer side of the joint of the screw rod 2 and the movable plate 3, the screw rod nut 4 is welded at the upper side of the movable plate 3, a jack 5 is arranged at the bottom end of the screw rod 2, inserting cylinders 13 are arranged at the four corners of the upper side of the movable plate, the upper end of the inserted link 10 is welded at the bottom end of the top plate 8, the bottom end of the inserted link 10 is inserted into the inserting cylinder 13, and a flexible connecting piece is pasted on the outer side among the bottom plate 1, the moving plate 3 and the top plate 8.

Further, the inserted bar 10 is located the inside section bottom of inserted cylinder 13 and is provided with baffle 14, and the welding of baffle 14 upper end is in inserted bar 10 bottom end position, and baffle 14 sets up the home range that is used for restricting inserted bar 10, avoids the son to use to tear, and inserted bar 10 breaks away from inserted cylinder 13.

Further, insert a section of thick bamboo 13 upper end and be provided with limiting plate 11, and the welding of limiting plate 11 bottom is inserted a 13 upper end position, and limiting plate 11 sets up the home range that is used for restricting movable plate 3, avoids when using, inserts a 13 and breaks away from smooth section of thick bamboo 12.

Further, the outer side of the sliding barrel 12 is provided with a fixing bolt 16, the fixing bolt 16 is rotatably installed inside the sliding barrel 12 through threads, the fixing bolt 16 penetrates through the sliding barrel 12 to be in contact connection with the inserting barrel 13, the fixing bolt 16 can fix the adjusted moving plate 3, and the phenomenon of wire sliding between the screw rod 2 and the screw rod nut 4 in use is avoided.

Further, the pillar 6 is arranged at the center of the spring 7 at the upper end of the moving plate 3, the bottom end of the pillar 6 is welded to the upper side of the moving plate 3, the pillar 6 is arranged to limit the moving range of the spring 7, and the situation that the spring 7 is large in shrinkage degree and the damping effect of the spring 7 is affected when the damping device is used is avoided.

Further, 8 upsides of roof are provided with soft metal pad 9, and the welding of 9 bottom ends of soft metal pad is at 8 upsides of roof, and the texture of soft metal pad 9 is comparatively soft, and when installing roof 8, soft metal pad 9 will take place to warp, fills the space between roof 8 and the installation base member for more stable of roof 8 installation.

The utility model discloses a theory of operation and use flow: during the use, install the device in the assigned position through bottom plate 1 and roof 8, carry out the damping through spring 7, through inserted bar 10 and inserted cylinder 13 to movable plate 3, roof 8 and bottom plate 1 support, spring 7 can contract at the process of damping, when the shrink, roof 8 removes downwards, when roof 8 removes, inserted bar 10 will imbed inside inserted cylinder 13, when needing to adjust spring 7's damping coefficient, through crowbar embedding jack 5 inside, through rotatory lead screw 2, lead screw 2 passes through the effect of screw-nut 4, drive movable plate 3 and upwards or remove downwards, the condition of stretching through regulating spring 7, thereby change spring 7's damping coefficient, unusual convenience.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration damper in the splicing construction of highway bridges comprises a bottom plate (1), a movable plate (3) and a top plate (8); the method is characterized in that: the top plate (8) is positioned at the bottom end of the bottom plate (1), the movable plate (3) is positioned between the top plate (8) and the bottom plate (1), a spring (7) is arranged between the top plate (8) and the movable plate (3), the top end and the bottom end of the spring (7) are provided with the top plate (8) bottom end and the movable plate (3) upside, a screw rod (2) is arranged between the movable plate (3) and the bottom plate (1), a bearing (15) is sleeved at the bottom end of the screw rod (2), the bearing (15) is welded at the upside of the bottom plate (1), the upper end of the screw rod (2) penetrates through the movable plate (3), a screw rod nut (4) is sleeved at the outer side of the joint of the screw rod (2) and the movable plate (3), the screw rod nut (4) is welded at the upside of the movable plate (3), a jack, moving plate (3) upside four corners department is provided with inserts a section of thick bamboo (13), insert a section of thick bamboo (13) bottom welding at bottom plate (1) upside, moving plate (3) upside is provided with slide cartridge (12) all around, slide cartridge (12) welding is around moving plate (3), insert a section of thick bamboo (13) upper end and pass slide cartridge (12) and stretch out moving plate (3), roof (8) bottom four corners is provided with inserted bar (10), the welding is in roof (8) bottom on inserted bar (10), inserted bar (10) bottom is inserted and is inserted a section of thick bamboo (13) inside, the outside is pasted and is had the flexible connectors between bottom plate (1), moving plate (3) and roof (8).

2. The vibration damping device for the splicing construction of the highway bridge as claimed in claim 1, wherein: the bottom end of the section of the inserted bar (10) inside the inserted cylinder (13) is provided with a baffle (14), and the upper end of the baffle (14) is welded at the bottom end of the inserted bar (10).

3. The vibration damping device for the splicing construction of the highway bridge as claimed in claim 1, wherein: insert a section of thick bamboo (13) upper end and be provided with limiting plate (11), and limiting plate (11) bottom welding is in inserting a section of thick bamboo (13) upper end position.

4. The vibration damping device for the splicing construction of the highway bridge as claimed in claim 1, wherein: the outer side of the sliding cylinder (12) is provided with a fixing bolt (16), the fixing bolt (16) is rotatably installed inside the sliding cylinder (12) through threads, and the fixing bolt (16) penetrates through the sliding cylinder (12) to be in touch connection with the inserting cylinder (13).

5. The vibration damping device for the splicing construction of the highway bridge as claimed in claim 1, wherein: the upper end of the moving plate (3) is provided with a strut (6) at the center of the spring (7), and the bottom end of the strut (6) is welded on the upper side of the moving plate (3).

6. The vibration damping device for the splicing construction of the highway bridge as claimed in claim 1, wherein: the upper side of the top plate (8) is provided with a soft metal pad (9), and the bottom end of the soft metal pad (9) is welded on the upper side of the top plate (8).