CN104947607A - Gap shock absorption beam jacking device - Google Patents
Gap shock absorption beam jacking device Download PDFInfo
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- CN104947607A CN104947607A CN201510365484.4A CN201510365484A CN104947607A CN 104947607 A CN104947607 A CN 104947607A CN 201510365484 A CN201510365484 A CN 201510365484A CN 104947607 A CN104947607 A CN 104947607A
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- support plate
- oil cylinder
- hydraulic jack
- buffer beam
- supporting plate
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Abstract
The invention discloses a gap shock absorption beam jacking device which comprises an auxiliary supporting device and a hydraulic oil cylinder set. The auxiliary supporting device comprises supporting plates, and the upper supporting plate, the middle supporting plate and the lower supporting plate form a Z shape. The corner formed by the upper supporting plate and the middle supporting plate is hung on the lateral upper end face of a pier in a tightly attached mode, and the middle supporting plate and the lower supporting plate form a corner. The bottom end of the hydraulic oil cylinder set is fixed on the lower supporting plate, and the telescopic end of the hydraulic oil cylinder set abuts against a bridge plate. The gap shock absorption beam jacking device solves the problem that a traditional oil cylinder cannot jack up a road slab with a short distance to the pier; meanwhile, the application range of the gap shock absorption beam jacking device is expanded, and the gap shock absorption beam jacking device can be applied to high-pressure system equipment to achieve multiple purposes.
Description
Technical field
The present invention relates to a kind of lift-up device, specifically a kind of gap buffer beam lift-up device.
Background technology
After bridge uses the regular hour, because the elastic support between top board and bridge pier is aging, need to change elastic support, at this moment need the top board jack-up bridge, take out old bridge elastic support, more renew.When the distance of bridge road panel and bridge pier is larger, can directly put into rear jack-up road slab with large-tonnage oil cylinder, change elastic support.
When the distance of encountering road slab and bridge pier is less, when particularly spacing only has 20mm, normal oil cylinder just can not insert between top board and bridge pier, or the stroke of ultra-thin oil cylinder can not meet the demands.At this time just needing to design a kind of new lift-up device, solving the insufficient space problem when changing bridge elastic support.
Summary of the invention
Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, providing a kind of can place in less space, can produce again the lift-up device of an enough large thrust and stroke.
Technical scheme: in order to realize above object, a kind of gap of the present invention buffer beam lift-up device, is characterized in that: comprising: auxiliary support apparatus and hydraulic jack group; Described auxiliary support apparatus comprises gripper shoe, and described gripper shoe forms " Z " font by upper support board, midfoot support plate and lower support plate; Described upper support board and midfoot support plate form knuckle and are close to and are suspended on bridge pier side direction upper surface, and described midfoot support plate and lower support plate form knuckle; The bottom of described hydraulic jack group is fixed on lower support plate, and telescopic end and the bridge plate of described hydraulic jack group offset.A kind of gap of the present invention buffer beam lift-up device, to hang on bridge pier outside hydraulic jack by adopting the gripper shoe of ' Z ' font, by zigzag ingehious design, solving traditional oil cylinder cannot the problem of jack-up road slab, meet and realize in the jacking space requirement of limited narrow space oil cylinder, the location of the fuel tank simultaneously solved and the problem of support, complete the jacking maintenance activity of road slab, achieves the operation changing elastic support; Meanwhile, the scope of application of this gap buffer beam lift-up device expands, and can meet multiple high-pressure system equipment.
Described in the present invention, auxiliary support apparatus also comprises: drill steel; Described drill steel is connected on lower support plate; The tip of described drill steel withstands on the lateral wall of bridge pier.Have employed the supporting role that drill steel better can realize Z-shaped gripper shoe in the present invention, reduce rollover power simultaneously, avoid tumbling of gripper shoe.
The tip of drill steel described in the present invention is downward-sloping to be withstood on the lateral wall of bridge pier, and the downward-sloping design of this drill steel tip can further reduce rollover power, improves the stability of whole device.
The group of hydraulic jack described in the present invention adopts block-type oil cylinder, and in this block-type oil cylinder, hydraulic jack is at least 1, and the core of described lift-up device carries power design formulas and is:
Fmax= N*Fsinle =N*P*∏D2/40000
Wherein, F is gross thrust, and P is oil suction chamber pressure, and D is hydraulic high-pressure oil cylinder inside radius, and N is the quantity of hydraulic jack.
The design of hydraulic jack group is adopted in the present invention, core can be improved by the superposition of oil cylinder group and carry power, be applicable to the jacking of Different Weight bridge plate, the weight of the bridge plate of jacking as required can increase the quantity of hydraulic jack in the present invention, operate very simple and convenient.
The knuckle angle a that upper support board described in the present invention and midfoot support plate are formed is 88 °-90 °.The knuckle that middle and upper part of the present invention gripper shoe and midfoot support plate are formed is slightly less than more favourable being attached on bridge pier when right angle is conducive to cylinder jacking.Because the gripper shoe of " Z " font is steel structure, have certain toughness, when stressed, the angle being slightly less than right angle can better be attached on bridge pier, difficult drop-off, improves the stability that gripper shoe supports.
The angle of the knuckle b that midfoot support plate right flank of the present invention and lower support plate upper surface are formed is 92 °-95 °.The knuckle b that the plate right flank of midfoot support described in the present invention and lower support plate upper surface are formed is greater than right angle, hydraulic jack is installed on lower support plate is in outward-dipping, the flare of this hydraulic jack is placed, the reaction force of oil cylinder is extended in bridge pier, can effectively avoid gripper shoe to tumble.
Auxiliary support apparatus described in the present invention also comprises inclined-plane back-up block; The upper end of described inclined-plane back-up block is fixed on lower support plate; Lower end is connected with drill steel, rollover power can be reduced further, ensure that the Impact direction of combining ability simultaneously, improve the stability of lift-up device, the inclined-plane back-up block of differing heights can be selected according to the oil cylinder of different model, different stroke simultaneously, adapt to different hydraulic jacks by the height of adjustment inclined-plane back-up block, improve the scope of application of whole lift-up device.
Beneficial effect: gap of the present invention buffer beam lift-up device, has the following advantages:
1, the buffer beam lift-up device of gap described in the present invention, by adopting the gripper shoe of " Z " font, solve a difficult problem for little space jacking difficulty, the positioning supports of hydraulic jack is solved by the use of the gripper shoe of " Z " font, and the problem of jacking stroke, be inserted in gap by the top of the gripper shoe by " Z " font and locate, gripper shoe lower part completes support, middle part can adopt different length according to the stroke of oil cylinder, can solve the jacking problem of different oil cylinder at small space.
2, gap of the present invention buffer beam lift-up device, its gripper shoe by hydraulic high-pressure oil cylinder and " Z " font and drill steel cooperatively interact, and effectively prevent tumbling of gripper shoe.
3, can improve core by the superposition of hydraulic jack in hydraulic jack group in the present invention and carry power, be applicable to the jacking of Different Weight bridge plate, also can adopt the hydraulic jack of different stroke to be suitable for the jacking under different situations, combination is flexibly, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the gripper shoe of " Z " font in the present invention.
In figure: gripper shoe 1, hydraulic jack group 2, drill steel 3, inclined-plane back-up block 4, spring support 5, bridge pier 6, bridge plate 7.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Embodiment
A kind of gap buffer beam lift-up device as shown in the figure, comprising: auxiliary support apparatus and hydraulic jack group 2, described hydraulic jack group is installed on auxiliary support apparatus, provides kinetic energy by high-pressure and hydraulic pumping plant feeding compressing cylinder group.
Auxiliary support apparatus described in the present embodiment comprises gripper shoe 1, drill steel 3, inclined-plane back-up block 4, and described gripper shoe 1 forms " Z " font by upper support board 11, midfoot support plate 12 and lower support plate 13; Described hydraulic jack group is made up of 8 hydraulic jacks.
The annexation of above-mentioned each parts is as follows:
Described upper support board 11 and midfoot support plate 12 form knuckle and are close to and are suspended on bridge pier 6 side direction upper surface, and described midfoot support plate 12 and lower support plate 13 form knuckle; The bottom of described hydraulic jack group 2 is fixed on lower support plate 13, and telescopic end and the bridge plate 7 of described hydraulic jack group offset; Described drill steel 3 is connected on lower support plate 13 by inclined-plane back-up block 4; On the downward-sloping lateral wall withstanding on bridge pier 6 of tip of described drill steel 3; The knuckle angle a that described upper support board 11 and midfoot support plate 12 are formed is 89.5 °; The angle of the knuckle b that described midfoot support plate 12 right flank and lower support plate 13 upper surface are formed is 93 °.
Described in the present embodiment, the course of work of gap buffer beam lift-up device is as follows:
The stroke of hydraulic jack as required needs the inclined-plane back-up block 4 of height; The gap between road slab and bridge pier is inserted in one end of the upper support board 11 of the gripper shoe 1 of the Z-shaped described in the buffer beam lift-up device of gap, lower support plate 13 support hydraulic pressure oil cylinder group, described drill steel pointed nose withstands on the Dun Bi of bridge pier, prevents gripper shoe from tumbling.
The core of lift-up device described in the present embodiment carries power design formulas and is:
Fmax= N*Fsinle =N*P*∏D2/40000
Wherein, F is gross thrust, and P is oil suction chamber pressure, and D is hydraulic high-pressure oil cylinder internal diameter, and N is the quantity of hydraulic high-pressure oil cylinder;
As oil suction chamber pressure P=70MPa, when hydraulic high-pressure oil cylinder internal diameter D=40mm, the quantity n=8 of hydraulic high-pressure oil cylinder,
Fmax= N*Fsinle =N*P*∏D2/40000
=8*70*3.14*40*40/40000=8.792Te*8=70.336Te。
Embodiment is only not used in for illustration of the present invention and limits the scope of the invention, and after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention all falls within the application's claims limited range.
Claims (7)
1. a gap buffer beam lift-up device, is characterized in that: comprising: auxiliary support apparatus and hydraulic jack group (2);
Described auxiliary support apparatus comprises gripper shoe (1), and described gripper shoe (1) forms " Z " font by upper support board (11), midfoot support plate (12) and lower support plate (13);
Described upper support board (11) and midfoot support plate (12) form knuckle and are close to and are suspended on bridge pier (6) side direction upper surface, described midfoot support plate (12) and lower support plate (13) formation knuckle; The bottom of described hydraulic jack group (2) is fixed on lower support plate (13), and telescopic end and the bridge plate (7) of described hydraulic jack group offset.
2. gap according to claim 1 buffer beam lift-up device, is characterized in that: described auxiliary support apparatus also comprises: drill steel (3); Described drill steel (3) is connected on lower support plate (13); The tip of described drill steel (3) withstands on the lateral wall of bridge pier (6).
3. gap according to claim 2 buffer beam lift-up device, is characterized in that: on the downward-sloping lateral wall withstanding on bridge pier (6) of tip of described drill steel (3).
4. gap according to claim 1 buffer beam lift-up device, is characterized in that: described hydraulic jack group (2) adopts block-type oil cylinder, and in this block-type oil cylinder, hydraulic jack is at least 1, and the core of described lift-up device carries power design formulas and is:
Fmax= N*Fsinle =N*P*∏D2/40000
Wherein, F is gross thrust, and P is oil suction chamber pressure, and D is hydraulic high-pressure oil cylinder inside radius, and N is the quantity of hydraulic jack.
5. gap according to claim 1 buffer beam lift-up device, is characterized in that: the knuckle angle a that described upper support board (11) and midfoot support plate (12) are formed is 88 °-90 °.
6. gap according to claim 1 buffer beam lift-up device, is characterized in that: the angle of the knuckle b that described midfoot support plate (12) right flank and lower support plate (13) upper surface are formed is 92 °-95 °.
7. gap according to claim 3 buffer beam lift-up device, is characterized in that: described auxiliary support apparatus also comprises: inclined-plane back-up block (4); The upper end of described inclined-plane back-up block is fixed on lower support plate (13); Lower end is connected with drill steel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365484.4A CN104947607A (en) | 2015-06-29 | 2015-06-29 | Gap shock absorption beam jacking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365484.4A CN104947607A (en) | 2015-06-29 | 2015-06-29 | Gap shock absorption beam jacking device |
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| CN104947607A true CN104947607A (en) | 2015-09-30 |
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| CN201510365484.4A Pending CN104947607A (en) | 2015-06-29 | 2015-06-29 | Gap shock absorption beam jacking device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493747A (en) * | 2003-08-28 | 2004-05-05 | 斌 徐 | Maintenance device of bridge pedestal |
| KR100780888B1 (en) * | 2006-11-15 | 2007-11-30 | 민경기술 주식회사 | Bracket structure for replacing the old shoe with new one continuously and method lifting the bridge slab |
| KR20090102266A (en) * | 2008-03-25 | 2009-09-30 | 서울메트로 | A pulling plate of beam the bridge pier |
| CN203890893U (en) * | 2014-05-23 | 2014-10-22 | 福建路桥建设有限公司 | Supporting bracket for integral lifting of hollow slab girder |
| CN204738241U (en) * | 2015-06-29 | 2015-11-04 | 实用动力(中国)工业有限公司 | Gap shock attenuation back rises device |
-
2015
- 2015-06-29 CN CN201510365484.4A patent/CN104947607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493747A (en) * | 2003-08-28 | 2004-05-05 | 斌 徐 | Maintenance device of bridge pedestal |
| KR100780888B1 (en) * | 2006-11-15 | 2007-11-30 | 민경기술 주식회사 | Bracket structure for replacing the old shoe with new one continuously and method lifting the bridge slab |
| KR20090102266A (en) * | 2008-03-25 | 2009-09-30 | 서울메트로 | A pulling plate of beam the bridge pier |
| CN203890893U (en) * | 2014-05-23 | 2014-10-22 | 福建路桥建设有限公司 | Supporting bracket for integral lifting of hollow slab girder |
| CN204738241U (en) * | 2015-06-29 | 2015-11-04 | 实用动力(中国)工业有限公司 | Gap shock attenuation back rises device |
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Application publication date: 20150930 |
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