CN108557645B - Steel box girder hoisting limiting buffer device - Google Patents
Steel box girder hoisting limiting buffer device Download PDFInfo
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- CN108557645B CN108557645B CN201810176455.7A CN201810176455A CN108557645B CN 108557645 B CN108557645 B CN 108557645B CN 201810176455 A CN201810176455 A CN 201810176455A CN 108557645 B CN108557645 B CN 108557645B
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- Prior art keywords
- oil cylinder
- vertical
- box girder
- steel box
- buffer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The utility model provides a spacing buffer of steel case roof beam hoist and mount, includes vertical buffer gear and side direction buffer gear, the vertical buffer gear of multiunit set up on the concrete bridge floor, each group includes two vertical buffer gear, vertical buffer gear one side of same group is equipped with a side direction buffer gear, side direction buffer gear passes through the support to be supported and fixes on the concrete bridge floor. By adopting the structure, the problem of difficult landing existing in the process of hoisting the box girder in the construction engineering of the bridge in the sea area of the surge can be solved, the condition of sea waves is not needed to be considered too much, and the overall construction efficiency can be greatly improved.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a steel box girder hoisting limiting buffer device.
Background
In the construction engineering of the bridge in the sea area of the surge, when the steel box girder segments are hoisted to the poured reinforced concrete bridge deck by adopting the small and medium-sized crane, the motion response of the crane in the wave can excite the crane hook weight system to vibrate in the horizontal plane and vertically, so that the hoisting operation can not be smoothly carried out, and even the permanent structures such as the steel box girder to be installed can be damaged when the crane is in place, thereby causing unnecessary economic loss.
The existing hoisting buffer equipment generally adopts a spring structure, such as a published Chinese patent 'hoisting spring buffer' (application number 201410053181.4), and discloses a lifting hook with a built-in spring structure, which is used for solving the problem of collision damage in the hoisting operation process, particularly in the hoisting process.
As another example, the present patent "a hoisting frame with buffering effect" (application number 201610900603.6) discloses a hoisting buffering support, which also buffers the hoisting weight in the process of unloading through a spring structure.
In view of the two prior patents, most of the principles in the prior patents are as follows: the spring structure is adopted, the spring applies the elasticity opposite to the gravity of the heavy object in the falling process of the heavy object, so that the falling speed of the heavy object is reduced, and the buffering purpose is achieved, but under the condition that the hoisting equipment is stable, in the prior patent, when the crane ship is used for hoisting the bridge construction in the surge sea area, the crane ship is in an unstable state, and how to stably hoist the heavy object of tens tons or even hundreds of tons of box girders in the unstable state of the hoisting equipment is a problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing the steel box girder hoisting limiting buffer device, which can solve the problem of difficult landing in the process of hoisting the box girder in the construction engineering of the bridge in the sea area of the surge, does not need to consider the condition of sea waves excessively, and can greatly improve the overall efficiency of construction.
In order to solve the technical problems, the invention adopts the following technical scheme: a steel box girder hoisting limiting buffer device is provided, wherein a plurality of groups of vertical buffer mechanisms are arranged on a bridge deck, each group comprises two vertical buffer mechanisms, one side of each vertical buffer mechanism of the same group is provided with a lateral buffer mechanism, and the lateral buffer mechanisms are supported and fixed on the bridge deck through brackets.
In the preferred scheme, vertical buffer gear include vertical hydro-cylinder, vertical upwards setting of push rod of vertical hydro-cylinder, the upper end of push rod is fixed with the spheroid, the upper end of push rod has the movable block through spheroid swing joint, the top surface of movable block is equipped with the rubber backing plate.
In the preferred scheme, the vertical cylinder set up in the direction sleeve, the direction sleeve is one end open-ended tubular structure, still overlaps on the direction sleeve and is equipped with the movable sleeve the same with the direction sleeve structure, the direction sleeve sets up with the movable sleeve open end relatively, the upper end of vertical cylinder wear to establish on the movable sleeve non-closed end.
In the preferred scheme, side direction buffer gear include the base, the base top is equipped with limit baffle, limit baffle one side is equipped with the backup pad.
In the preferred scheme, the base adopts the structure that the cross-section is "U" shape, is equipped with horizontal hydro-cylinder in the "U" shape recess of base, horizontal hydro-cylinder's push rod one end pass through connecting piece and limit baffle's lower extreme fixed connection, limit baffle upper end articulated with the upper end of backup pad, the lower extreme articulated setting of backup pad at the base top surface.
In the preferred scheme, a telescopic rod is arranged between the limit baffle and the supporting plate.
In the preferred scheme, the inner side wall of the U-shaped groove and one side of the limit baffle, which is far away from the supporting plate, are provided with MGE sliding plates.
In the preferred scheme, a guide mechanism is arranged on the bottom surface of the U-shaped groove and used for guiding a push rod of the transverse oil cylinder.
In the preferred scheme, the base top surface on be equipped with the stopper in the position that is located "U" shape recess both sides, the stopper passes through the bolt fastening and sets up on the base top surface, and one of them side of stopper extends to "U" shape recess top.
In the preferred scheme, the vertical oil cylinder and the transverse oil cylinder are connected with a hydraulic pump station, a throttle valve is arranged on a connecting pipeline between the oil cylinder and the hydraulic pump station, a branch pipe is further arranged on the connecting pipeline, and one end of the branch pipe is connected with an energy accumulator.
The steel box girder hoisting limit buffer device provided by the invention has the following beneficial effects by adopting the structure:
(1) The problem of hoisting the box girder in the construction engineering of the bridge in the surging sea area is effectively solved, and the condition of sea waves is not needed to be considered excessively, so that the hoisting operation of the box girder is not limited by the condition of the sea waves, the construction efficiency is greatly improved, and the normal construction progress is ensured;
(2) The lifting device has the advantages that the lifting stability of the heavy object in the unstable state of the lifting device is realized, and compared with the prior art, the lifting device is more suitable for various construction engineering operations, the normal operation of the lifting operation can be ensured, and the construction efficiency is ensured.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic cross-sectional structure of the present invention during a hoisting process.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic structural view of a vertical buffer mechanism according to the present invention.
Fig. 4-5 are schematic views of the lateral cushioning mechanism of the present invention.
Fig. 6 is a schematic diagram of the cylinder buffer system of the present invention.
In the figure: steel box girder 1, vertical buffer gear 2, lateral buffer gear 3, support 4, throttle valve 5, energy accumulator 6, hydraulic pump station 7, guide sleeve 201, vertical cylinder 202, sphere 203, movable sleeve 204, movable block 205, rubber pad 206, limit baffle 301, MGE slide plate 302, lateral cylinder 303, connecting piece 304, guide mechanism 305, support plate 306, telescopic rod 307, base 308, "U" shaped groove 309, limit block 310.
Detailed Description
Example 1
As shown in fig. 1 and 2, a steel box girder hoisting limiting buffer device is provided, wherein a plurality of groups of vertical buffer mechanisms 2 are arranged on a bridge deck, each group comprises two vertical buffer mechanisms 2, one side of each vertical buffer mechanism 2 of the same group is provided with a lateral buffer mechanism 3, and the lateral buffer mechanisms 3 are supported and fixed on the bridge deck through brackets 4.
Example 2:
referring to fig. 3, on the basis of embodiment 1, the vertical buffer mechanism 2 includes a vertical cylinder 202, a push rod of the vertical cylinder 202 is vertically disposed upwards, a ball 203 is fixedly disposed at an upper end of the push rod, a movable block 205 is movably connected to an upper end of the push rod through the ball 203, and a rubber pad 206 is disposed on a top surface of the movable block 205.
In the preferred scheme, the vertical cylinder 202 is arranged in the guide sleeve 201, the guide sleeve 201 is of a cylindrical structure with one end open, the guide sleeve 201 is also sleeved with a movable sleeve 204 with the same structure as the guide sleeve 201, the guide sleeve 201 and the open end of the movable sleeve 204 are arranged oppositely, and the upper end of the vertical cylinder 202 is arranged on the unsealed end of the movable sleeve 204 in a penetrating manner.
Example 3:
referring to fig. 4-5, based on embodiment 1, the lateral buffer mechanism 3 includes a base 308, a limit baffle 301 is disposed on top of the base 308, and a support plate 306 is disposed on one side of the limit baffle 301.
In a preferred embodiment, the base 308 adopts a structure with a "U" shaped cross section, a transverse cylinder 303 is disposed in a "U" shaped groove 309 of the base 308, one end of a push rod of the transverse cylinder 303 is fixedly connected with the lower end of the limit baffle 301 through a connecting piece 304, the upper end of the limit baffle 301 is hinged with the upper end of the support plate 306, and the lower end of the support plate 306 is hinged on the top surface of the base 308.
In a preferred embodiment, a telescopic rod 307 is disposed between the limit stop plate 301 and the support plate 306.
In a preferred embodiment, MGE sliding plate 302 is disposed on the inner side wall of the U-shaped groove 309 and on the side of limit baffle 301 away from support plate 306.
In a preferred embodiment, a guide mechanism 305 is disposed on the bottom surface of the U-shaped groove 309, and the guide mechanism 305 is used for guiding the push rod of the transverse cylinder 303.
In a preferred embodiment, the top surface of the base 308 is provided with a stopper 310 at two sides of the "U" shaped groove 309, the stopper 310 is fixedly disposed on the top surface of the base 308 by a bolt, and one side of the stopper 310 extends above the "U" shaped groove 309.
Example 4:
referring to fig. 6, on the basis of embodiments 2 and 3, the vertical cylinder 202 and the horizontal cylinder 303 are both connected with the hydraulic pump station 7, a throttle valve 5 is arranged on a connecting pipeline between the cylinder and the hydraulic pump station 7, a branch pipe is further arranged on the connecting pipeline, and one end of the branch pipe is connected with the accumulator 6.
The lifting process of the steel box girder 1 is as follows:
the crane ship lifts the steel box girder 1 to the position above the limiting buffer device, and the steel box girder 1 collides with the lateral buffer mechanism 3 through the large lifting arm, so that the transverse movement amplitude of the steel box girder 1 is restrained under the lateral flexible limiting damping effect; thereafter, the crane vessel continues to fall down, and the box girder moves in the vertical plane along the MGE sliding plate 302 on the limit baffle 301 until contacting the movable block 205 and the rubber cushion plate 206 on the top of the vertical buffer mechanism 2; after that, the vertical movement amplitude of the steel box girder 1 gradually decreases to zero under the buffer action of the vertical buffer mechanisms 2, the lifting rope is loosened, and the steel box girder 1 stably falls on the four vertical buffer mechanisms 2; after the steel box girder 1 is completely stabilized, the piston rod of the vertical oil cylinder 202 is controlled to actively shrink to the bottommost end, and girder falling operation of the steel box girder is completed.
The cylinder buffering principle is as follows:
when the rubber backing plate 206 or the limit baffle 301 connected with the vertical oil cylinder 202 and the horizontal oil cylinder 303 receives the pressure of the steel box girder 1, the pressure in the oil cylinder is increased, oil enters the energy accumulator 6 through the throttle valve 5, the oil cylinder contracts, and finally the purposes of prolonging the impact time and reducing the impact force are realized; when the steel box girder 1 leaves the rubber backing plate 206 or the limit baffle 301, the pressure in the oil cylinder is reduced, oil flows into the oil cylinder from the energy accumulator 6, and the oil cylinder stretches, so that the effect that the rubber backing plate 206 or the limit baffle 301 is clung to the bottom surface and the side surface of the steel box girder 1 is achieved, motion damping is formed, and when a lifting ship drives the steel box girder 1 to reciprocate up and down, damping formed by the fact that the rubber backing plate 206 or the limit baffle 301 is clung to the bottom surface and the side surface of the steel box girder 1 is finally achieved, and the steel box girder 1 can be gradually lowered, so that stable lifting is realized.
It will be apparent to those skilled in the art that various facility locations and parameters may be adjusted without departing from the principles of the present invention, and such adjustments are also contemplated as being within the scope of the present invention.
Claims (6)
1. A steel box girder hoisting limit buffer device is characterized in that: the multiple groups of vertical buffer mechanisms (2) are arranged on the bridge deck, each group comprises two vertical buffer mechanisms (2), one side of the vertical buffer mechanism (2) of the same group is provided with a lateral buffer mechanism (3), and the lateral buffer mechanisms (3) are supported and fixed on the bridge deck through brackets (4);
the vertical buffer mechanism (2) comprises a vertical oil cylinder (202), a push rod of the vertical oil cylinder (202) is vertically arranged upwards, a ball body (203) is fixedly arranged at the upper end of the push rod, a movable block (205) is movably connected to the upper end of the push rod through the ball body (203), and a rubber backing plate (206) is arranged on the top surface of the movable block (205);
the vertical oil cylinder (202) is arranged in the guide sleeve (201), the guide sleeve (201) is of a cylindrical structure with one end open, the guide sleeve (201) is also sleeved with a movable sleeve (204) with the same structure as the guide sleeve (201), the guide sleeve (201) is arranged opposite to the open end of the movable sleeve (204), and the upper end of the vertical oil cylinder (202) is arranged on the unsealed end of the movable sleeve (204) in a penetrating manner;
the lateral buffer mechanism (3) comprises a base (308), a limit baffle (301) is arranged at the top of the base (308), and a support plate (306) is arranged on one side of the limit baffle (301);
the base (308) adopts a structure with a U-shaped cross section, a transverse oil cylinder (303) is arranged in a U-shaped groove (309) of the base (308), one end of a push rod of the transverse oil cylinder (303) is fixedly connected with the lower end of the limit baffle (301) through a connecting piece (304), the upper end of the limit baffle (301) is hinged with the upper end of the supporting plate (306), and the lower end of the supporting plate (306) is hinged to the top surface of the base (308).
2. The steel box girder hoisting limit buffer device according to claim 1, wherein: a telescopic rod (307) is arranged between the limit baffle (301) and the supporting plate (306).
3. The steel box girder hoisting limit buffer device according to claim 1, wherein: the inner side wall of the U-shaped groove (309) and one surface of the limit baffle (301) away from the supporting plate (306) are provided with MGE sliding plates (302).
4. A steel box girder hoisting limit buffer according to claim 1 or 3, characterized in that: the bottom surface of the U-shaped groove (309) is provided with a guide mechanism (305), and the guide mechanism (305) is used for guiding a push rod of the transverse oil cylinder (303).
5. The steel box girder hoisting limit buffer device according to claim 1, wherein: limiting blocks (310) are arranged on the top surface of the base (308) and positioned on two sides of the U-shaped groove (309), the limiting blocks (310) are fixedly arranged on the top surface of the base (308) through bolts, and one side of each limiting block (310) extends to the upper portion of the U-shaped groove (309).
6. The steel box girder hoisting limit buffer device according to claim 1, wherein: the vertical oil cylinder (202) and the horizontal oil cylinder (303) are connected with the hydraulic pump station (7), a throttle valve (5) is arranged on a connecting pipeline between the oil cylinder and the hydraulic pump station (7), a branch pipe is further arranged on the connecting pipeline, and one end of the branch pipe is connected with the energy accumulator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176455.7A CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176455.7A CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108557645A CN108557645A (en) | 2018-09-21 |
| CN108557645B true CN108557645B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810176455.7A Active CN108557645B (en) | 2018-03-03 | 2018-03-03 | Steel box girder hoisting limiting buffer device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371843B (en) * | 2018-11-26 | 2021-08-03 | 中铁大桥科学研究院有限公司 | Multifunctional jack for erecting simply-supported steel beam of sea-crossing bridge |
| CN109750602B (en) * | 2019-01-25 | 2023-09-22 | 中交二航局第二工程有限公司 | Slamming-preventing quick emptying device for offshore hoisting |
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| CN204418025U (en) * | 2014-12-05 | 2015-06-24 | 中交一航局第三工程有限公司 | Marine crane ship pile equipment adjuster |
| CN204455856U (en) * | 2015-02-10 | 2015-07-08 | 中交一航局第一工程有限公司 | A kind of pressure mechanism in place of prefabricated pier |
| CN204895792U (en) * | 2015-08-07 | 2015-12-23 | 衡水橡胶股份有限公司 | Marine buffer that supports of platform chunk |
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| CN107558372A (en) * | 2017-08-24 | 2018-01-09 | 宁波市产城生态建设集团有限公司 | Prefabricated U-shaped beam falls beam positioner and positioning construction method |
| CN206955406U (en) * | 2017-06-02 | 2018-02-02 | 温州市正立建筑设计有限公司 | A kind of building-construction lifting device |
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| CN102080356A (en) * | 2010-12-17 | 2011-06-01 | 中铁大桥局集团第四工程有限公司 | Box girder positioning temporary supporting seat and positioning construction method of box girder |
| JP2013177240A (en) * | 2012-02-10 | 2013-09-09 | Jfe Engineering Corp | Vibration restraining method and device of cargo handling machine |
| CN202880659U (en) * | 2012-10-16 | 2013-04-17 | 广东华尔辰海上风电工程有限责任公司 | Driven buffering hoisting equipment of offshore wind turbine generating set |
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| CN107558372A (en) * | 2017-08-24 | 2018-01-09 | 宁波市产城生态建设集团有限公司 | Prefabricated U-shaped beam falls beam positioner and positioning construction method |
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| CN108557645A (en) | 2018-09-21 |
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