CN110526144A - A kind of test formula stretch-draw jack fixed rack - Google Patents

A kind of test formula stretch-draw jack fixed rack Download PDF

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Publication number
CN110526144A
CN110526144A CN201810504358.6A CN201810504358A CN110526144A CN 110526144 A CN110526144 A CN 110526144A CN 201810504358 A CN201810504358 A CN 201810504358A CN 110526144 A CN110526144 A CN 110526144A
Authority
CN
China
Prior art keywords
vertical bar
bracket
test formula
fixed rack
crossbeam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810504358.6A
Other languages
Chinese (zh)
Inventor
张海峰
孟冉
安江波
王猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Gunda Prestress Technology Co Ltd
Original Assignee
Hebei Gunda Prestress Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Gunda Prestress Technology Co Ltd filed Critical Hebei Gunda Prestress Technology Co Ltd
Priority to CN201810504358.6A priority Critical patent/CN110526144A/en
Publication of CN110526144A publication Critical patent/CN110526144A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/04Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C5/00Base supporting structures with legs
    • B66C5/02Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a kind of test formula stretch-draw jack fixed racks, belong to tensioning technical field of operation.It includes bracket, vertical bar and bracket;Bracket includes frame leg, whippletree and crossbeam, and crossbeam is located at the lower section of whippletree, and crossbeam is equipped with vertical and perforative pilot hole;Vertical bar is through rope hanging on whippletree, and for making vertical bar move up and down, the lower part of vertical bar passes through rope from pilot hole;Bracket is fixed on the bottom end of vertical bar, and bracket includes horizontal platform, and platform is equipped with the fixed structure for fixing jack cylinder body.The configuration of the present invention is simple, it is easy to use, it may be reused, provide a kind of simple and effective unified solution for the tensioning operation under similar scene, significantly the abbreviation difficulty of construction of bridge prestress engineering.

Description

A kind of test formula stretch-draw jack fixed rack
Technical field
The present invention relates to a kind of test formula stretch-draw jack fixed racks, belong to tensioning technical field of operation.
Background technique
With the extensive development of China's construction project, in order to improve construction efficiency, automatic Tensioning and mud jacking equipment are in height It is generally used in fast bridges in highway engineering.
But it due to type of bridge difference, needs using the place of stretching machine lacing wire and mode disunity, especially in bridge When carrying out tensioning operation below face, due to narrow space, jack is difficult to fix, and which greatly increases bridge prestress engineerings Difficulty of construction.
Currently, can only consider to adaptation to local conditions the fixation method of jack for the tensioning operation in narrow space, still lack A kind of few simple and effective unified solution.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention proposes a kind of test formula stretch-draw jack fixed rack, energy It is enough provide fixed platform in narrow space for stretch-draw jack, the abbreviation difficulty of construction of bridge prestress engineering significantly.
To achieve the goals above, the invention provides the following technical scheme:
A kind of test formula stretch-draw jack fixed rack comprising bracket, vertical bar and bracket;The bracket include frame leg, Whippletree and crossbeam, the crossbeam are located at the lower section of whippletree, and the crossbeam is equipped with vertical and perforative pilot hole;The vertical bar is logical Rope hanging is crossed on the whippletree, the rope for making the vertical bar move up and down, lead from described by the lower part of the vertical bar Xiang Kongzhong is passed through;The bracket is fixed on the bottom end of the vertical bar, and the bracket includes horizontal platform, and the platform is equipped with For fixing the fixed structure of jack cylinder body.
Optionally, the bracket further includes horizontal straight guide, and the platform successively includes pedestal, rotation knot from top to bottom Structure, luffing structure and pallet, the platform are constrained on the straight guide by pedestal, and the fixed structure is set to described On pallet.
Optionally, the rotational structure is a turntable, sets that there are four for direct bolster jack cylinder body on the pallet The first idler wheel, four first idler wheels be in distributed rectangular, the wheel shaft of four first idler wheels with the luffing structure Pitch rotation plane parallel.
Optionally, the pedestal include the seat of honour above the straight guide and below the straight guide under Seat, the bottom at the seat of honour are equipped with the second idler wheel being in contact with the straight guide, and the seat of honour and the lower seat pass through bolt Cooperation with locking nut and constitute phase clamping structure.
Optionally, the pilot hole is square hole, is respectively provided with a guide wheel, the vertical bar quilt on four walls in the pilot hole It is clipped between four guide wheels.
Optionally, the rope is jack.
Optionally, there are two the crossbeam is total to, the pilot hole of two crossbeams is located on same vertical line.
Optionally, the fixed structure is anchor ear or lock strap.
From narration above as can be seen that the beneficial effect of technical solution of the present invention is:
1, the present invention is transferred to bracket by vertical bar in the narrow space of pending tensioning operation, can be very heavy for tensioning Top provides a reliable fixed platform, the predicament that jack is nowhere placed when solving operation under bridge floor.
2, the configuration of the present invention is simple, it is easy to use, it can be reused under several scenes, it can be in narrow space Tensioning operation provides a kind of simple and effective unified solution.
Detailed description of the invention
In order to clearly describe this patent, one or more attached drawing is provided below.
Fig. 1 is a kind of structural schematic diagram of test formula stretch-draw jack fixed rack in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram (being free of anchor ear) of terrace part in Fig. 1;
Fig. 3 is the explosive view of Fig. 2;
Fig. 4 is the structural schematic diagram of base portion in Fig. 2, shows the cross sectional shape and straight guide of straight guide 23 in figure With the positional relationship of the second idler wheel 343;
Fig. 5 is the structural schematic diagram of luffing structure part in Fig. 2;
Fig. 6 is the structural schematic diagram of Fig. 1 middle cross beam.
Specific embodiment
Understanding for the ease of those skilled in the art to the art of this patent scheme, below to this in the form of concrete case The technical solution of patent is described further.
As shown in Figure 1, a kind of test formula stretch-draw jack fixed rack comprising bracket, vertical bar 22 and bracket;The branch Frame includes frame leg 11, whippletree 12 and crossbeam 13, and the crossbeam 13 is located at the lower section of whippletree 12, the crossbeam 13 be equipped with it is vertical and Perforative pilot hole;The vertical bar 22 is through 21 hanging of rope on the whippletree 12, and the rope 21 is for making the vertical bar 22 move up and down, and the lower part of the vertical bar 22 is passed through from the pilot hole;The bracket is fixed on the bottom end of the vertical bar 22, The bracket includes horizontal platform 3, and the platform 3 is equipped with the fixed structure for fixing jack cylinder body.
Specifically, in upper example, rope 21 can use jack (being also " chain block ");Crossbeam can be set two It is a, and the pilot hole of two crossbeams is located on same vertical line, the setting of the double pilot holes of double crossbeams has better guide effect; Fixed structure can be using anchor ear or lock strap (lock strap is the cooperation latched with band).
In addition, being respectively provided with one on four walls in the pilot hole 130 as shown in fig. 6, pilot hole 130 can be square hole Guide wheel 131, the vertical bar are sandwiched between four guide wheels 131.This structure has better guide effect, and vertical bar is transported up and down Resistance is smaller when dynamic.
Optionally, as shown in Figures 1 to 3, the bracket further includes horizontal straight guide 23, straight guide 23 directly with vertical bar 22 Connection, the platform 3 successively include pedestal 34, rotational structure 33, luffing structure 32 and pallet 31, the platform 3 from top to bottom It is constrained on the straight guide 23 by pedestal by 34, the fixed structure is set on the pallet (31 two sides of pallet in Fig. 3 Screw hole be arranged fixed structure used in).
Optionally, as shown in Figure 2-5, the rotational structure 33 be a turntable, the upper and lower surface of turntable respectively with pitching knot Structure 32 is fixedly connected with pedestal 34, set on the pallet 31 there are four be used for direct bolster jack cylinder body the first idler wheel, institute Four the first idler wheels are stated in distributed rectangular, the luffing structure 32 includes two pitching runners 321, the bottom surface of pallet 31 and pitching The wheel body of runner 321 welds, in this way, the pitching movement of pallet 31 can be realized by the rotation of pitching runner, described four the The wheel shaft of one idler wheel with the pitch rotation plane parallel of the luffing structure.
Optionally, still see that Fig. 4, the pedestal 34 include positioned at the seat of honour 341 of 23 top of straight guide and positioned at described The lower seat 342 of 23 lower section of straight guide, the bottom at the seat of honour 341 are equipped with the second idler wheel 343 being in contact with the straight guide 23, Second idler wheel 343 is constrained in straight guide 23, and the seat of honour 341 passes through bolt 344 and locking nut with the lower seat 342 345 cooperation and constitute phase clamping structure, when locking nut 345 screws, lower seat 342 withstands the bottom surface of straight guide 23 upwards, from And platform 3 is prevented to play fixed function along the movement of straight guide 23.
In use, rope 21 can be first passed through by 22 pull-up of vertical bar, so that platform 3 is located at bridge floor or more, at this moment, can be convenient ground Jack is placed on pallet 31 (the jacking direction of jack and the first idler wheel it is axial consistent, jack is just by four First turning rolls is lived), and fixed jack by fixed structure (such as anchor ear or lock strap).Then, it can be incited somebody to action by rope 21 Platform 3 is transferred to below bridge, at this time, it may be necessary to a construction personnel enters in the narrow space below bridge floor, it will be to be tensioned Wirerope passes through jack.Since wirerope is not flexible, it is desirable that the perforation of jack is aligned with wirerope, be just conducive to steel Cable passes through.For this purpose, the design of present gantries moves platform along straight guide, and rotational structure is provided in terrace part 33 and luffing structure 32, while the first idler wheel is provided with also on pallet 31, in this way, jack can be realized in a certain range It is translatable (being realized by straight guide and the second idler wheel 343), the rotation of pitch rotation (being realized by luffing structure 32), orientation (is tied by rotation Structure 33 is realized) and itself axially rotation (by realization of the first idler wheel), consequently facilitating the position to jack is adjusted, be conducive to Wear going on smoothly for cable work.
In short, the present invention can provide a fixed platform for jack, suitable in the small spaces such as bridge floor lower section Tensioning operation.The configuration of the present invention is simple, it is easy to use, it may be reused, provide one for the tensioning operation under similar scene Kind simply and effectively unified solution, significantly the abbreviation difficulty of construction of bridge prestress engineering.
It should be pointed out that the above specific embodiment is the specific case of this patent implementation, without also can not All implementations of this patent can be covered, therefore the restriction to the scope of this patent cannot be regarded as;All and above case Belong to the implementation of same idea or the assembled scheme of above-mentioned several schemes, within the protection domain of this patent..

Claims (8)

1. a kind of test formula stretch-draw jack fixed rack, it is characterised in that: including bracket, vertical bar and bracket;The bracket packet Frame leg, whippletree and crossbeam are included, the crossbeam is located at the lower section of whippletree, and the crossbeam is equipped with vertical and perforative pilot hole;Institute Vertical bar is stated through rope hanging on the whippletree, the rope is for making the vertical bar move up and down, the lower part of the vertical bar It is passed through from the pilot hole;The bracket is fixed on the bottom end of the vertical bar, and the bracket includes horizontal platform, described flat Platform is equipped with the fixed structure for fixing jack cylinder body.
2. test formula stretch-draw jack fixed rack according to claim 1, it is characterised in that: the bracket further includes water Flat straight guide, the platform successively include pedestal, rotational structure, luffing structure and pallet from top to bottom, and the platform passes through Pedestal is constrained on the straight guide, and the fixed structure is set on the pallet.
3. test formula stretch-draw jack fixed rack according to claim 2, it is characterised in that: the rotational structure is one Turntable is set on the pallet there are four the first idler wheel for being used for direct bolster jack cylinder body, and four first idler wheels are in square Shape distribution, the wheel shaft of four first idler wheels with the pitch rotation plane parallel of the luffing structure.
4. test formula stretch-draw jack fixed rack according to claim 2, it is characterised in that: the pedestal includes being located at The bottom of the seat of honour above the straight guide and the lower seat below the straight guide, the seat of honour is equipped with and the straight guide The second idler wheel being in contact, the seat of honour constitute phase clamping structure by the cooperation of bolt and lock nut with the lower seat.
5. test formula stretch-draw jack fixed rack according to claim 1, it is characterised in that: the pilot hole is side Hole is respectively provided with a guide wheel on four walls in the pilot hole, and the vertical bar is sandwiched between four guide wheels.
6. test formula stretch-draw jack fixed rack according to claim 1, it is characterised in that: the rope is jack.
7. test formula stretch-draw jack fixed rack according to claim 1, it is characterised in that: the crossbeam shares two A, the pilot hole of two crossbeams is located on same vertical line.
8. test formula stretch-draw jack fixed rack according to claim 1, it is characterised in that: the fixed structure is to embrace Hoop or lock strap.
CN201810504358.6A 2018-05-24 2018-05-24 A kind of test formula stretch-draw jack fixed rack Withdrawn CN110526144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810504358.6A CN110526144A (en) 2018-05-24 2018-05-24 A kind of test formula stretch-draw jack fixed rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810504358.6A CN110526144A (en) 2018-05-24 2018-05-24 A kind of test formula stretch-draw jack fixed rack

Publications (1)

Publication Number Publication Date
CN110526144A true CN110526144A (en) 2019-12-03

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CN (1) CN110526144A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5993106A (en) * 1998-03-30 1999-11-30 Huang; Chun Chieh Restrainable manhole cover, handhole cover and the open/close device therewith
KR200320712Y1 (en) * 2003-04-14 2003-07-22 고윤화 Camera with pantilt
CN203188122U (en) * 2013-03-01 2013-09-11 浙江省交通工程建设集团有限公司 Movable type prestress tension platform
CN204139064U (en) * 2014-03-17 2015-02-04 中交四公局第三工程有限公司 Bridge floor hogging moment whole bundle intelligent tensioning car
CN105839544A (en) * 2016-05-10 2016-08-10 云南建工集团有限公司 Hogging moment stretching-drawing trolley capable of working aloft in narrow space
CN106378620A (en) * 2016-10-14 2017-02-08 哈尔滨工业大学 Modular automatic pick-up fitting device based on air flotation technology
KR101736680B1 (en) * 2016-08-29 2017-05-16 심규숙 Side lifting device of bridge upper structure using cross beam and bridge bearing replacement method using of the same
CN208249757U (en) * 2018-05-24 2018-12-18 河北高达预应力科技有限公司 A kind of test formula stretch-draw jack fixed rack

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5993106A (en) * 1998-03-30 1999-11-30 Huang; Chun Chieh Restrainable manhole cover, handhole cover and the open/close device therewith
KR200320712Y1 (en) * 2003-04-14 2003-07-22 고윤화 Camera with pantilt
CN203188122U (en) * 2013-03-01 2013-09-11 浙江省交通工程建设集团有限公司 Movable type prestress tension platform
CN204139064U (en) * 2014-03-17 2015-02-04 中交四公局第三工程有限公司 Bridge floor hogging moment whole bundle intelligent tensioning car
CN105839544A (en) * 2016-05-10 2016-08-10 云南建工集团有限公司 Hogging moment stretching-drawing trolley capable of working aloft in narrow space
KR101736680B1 (en) * 2016-08-29 2017-05-16 심규숙 Side lifting device of bridge upper structure using cross beam and bridge bearing replacement method using of the same
CN106378620A (en) * 2016-10-14 2017-02-08 哈尔滨工业大学 Modular automatic pick-up fitting device based on air flotation technology
CN208249757U (en) * 2018-05-24 2018-12-18 河北高达预应力科技有限公司 A kind of test formula stretch-draw jack fixed rack

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CB02 Change of applicant information

Address after: 050222 no.580 Shitong Road, Shijiazhuang City, Hebei Province

Applicant after: Hebei GAODA Intelligent Equipment Co.,Ltd.

Address before: 050222 First Floor, Building 12, Hebei (Fujian) Small and Medium-sized Enterprises Science and Technology Park, 580 Shitong Road, Luquan District, Shijiazhuang City, Hebei Province

Applicant before: HEBEI GUNDAM PRESTRESS TECHNOLOGY Co.,Ltd.

CB02 Change of applicant information
WW01 Invention patent application withdrawn after publication

Application publication date: 20191203

WW01 Invention patent application withdrawn after publication