CN111717785A - Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack - Google Patents
Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack Download PDFInfo
- Publication number
- CN111717785A CN111717785A CN202010645701.6A CN202010645701A CN111717785A CN 111717785 A CN111717785 A CN 111717785A CN 202010645701 A CN202010645701 A CN 202010645701A CN 111717785 A CN111717785 A CN 111717785A
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- jack
- frame
- adjusting
- transverse moving
- hogging moment
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 238000005516 engineering process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an adjusting and hoisting device for a T-beam hogging moment prestress tensioning jack, which comprises a hoisting frame (1); longitudinal moving rollers (2) are arranged at four corners of the bottom of the lifting frame, a transverse moving track (3) is arranged at the top of the lifting frame, a pair of transverse moving rollers (4) is arranged on the transverse moving track, and the pair of transverse moving rollers are connected through a lifting shaft (5); the hanging shaft is connected with the top of a height adjusting hoist (7) through a steel ring (6), and a steel cable (8) at the bottom of the height adjusting hoist is connected with a jack bearing bracket (9); the jack support bracket is provided with a jack (10). The invention can be used for guiding and transporting on the bridge floor, adjusting the height of the jack and rotating the jack to a designed tensioning position, thereby greatly improving the construction efficiency, reducing the labor and hoisting machinery, saving the construction cost and ensuring the construction safety. The device of the invention is simple and convenient to process and can be used repeatedly. The device is suitable for adjusting and hoisting the hogging moment prestress tensioning jacks of various bridge T beams.
Description
Technical Field
The invention relates to an adjusting and hoisting device for a T-beam hogging moment prestress tensioning jack, and belongs to the technical field of bridge T-beam hogging moment prestress tensioning construction equipment.
Background
In the T-beam hogging moment prestress tension construction of bridge engineering, a hydraulic jack is usually used to perform cyclic operations of jacking and guiding on a mounted T-beam deck. The traditional T-beam hogging moment prestress tensioning construction technology adopts either a 60T hydraulic jack to perform single tensioning in sequence through manual carrying to finish tensioning operation of a beam of stress force, or adopts a 200T hydraulic jack to perform hoisting and jacking whole-beam tensioning operation through a crane, and the hydraulic jack is usually manually carried to the next span to perform tensioning operation. The existing T-beam hogging moment prestress tensioning adjusting hoisting jack technology is low in construction benefit, inconvenient to operate, small in T-beam wet joint space and large in safety risk in an operation process, and the jack needs to be dragged to a tensioning end position by a large amount of manpower in the jacking process by using a crane, and the T-beam wing plate covers the tensioning end. In T-beam hogging moment prestress tension construction, the construction benefit is low and safety accidents are easy to happen. Therefore, the prior art has the defects and needs to be improved.
Disclosure of Invention
The invention aims to provide an adjusting and hoisting device for a T-beam hogging moment prestress tensioning jack, which is used for improving the hogging moment prestress tensioning construction work efficiency of a bridge T-beam, saving manpower and hoisting equipment, and ensuring the construction safety in the operation process, thereby overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to an adjusting and hoisting device for a T-beam hogging moment prestress tensioning jack, which comprises a hoisting frame; four corners of the bottom of the lifting frame are provided with longitudinal moving rollers, the top of the lifting frame is provided with a transverse moving track, the transverse moving track is provided with a pair of transverse moving rollers, and the pair of transverse moving rollers are connected through a lifting shaft; the hanging shaft is connected with the top of the height adjusting hoist through a steel ring, and a steel cable at the bottom of the height adjusting hoist is connected with a jack bearing bracket; the jack support bracket is provided with a jack.
In the hoisting device, the hoisting frame comprises a bottom frame, and the longitudinal moving rollers are arranged on two sides of four corners of the bottom frame; upright columns are arranged at four corners of the bottom frame, and the top ends of the upright columns are connected with the top frame; symmetrical inclined struts are arranged between the bottom frame and the top frame; a group of top cover brackets are arranged at the top of the top frame, and a rain shed is arranged on each top cover bracket; the transverse moving track is arranged in the middle of the top frame.
In the hoisting device, the transverse moving track comprises two symmetrical angle steels; two ends of two symmetrical angle steels are welded with the inner side of the top frame; a gap is reserved between the two symmetrical angle steels; each angle steel is provided with a transverse moving roller, and a pair of transverse moving rollers are rotationally connected through a hanging shaft; the hanging shaft is provided with a steel ring which penetrates through the gap to be connected with the top of the height adjusting hoist at the bottom.
In the hoisting device, the height adjusting hoist adopts a finished product electric hoist, and a lifting hook at the bottom of the finished product electric hoist is connected with the jack bearing bracket.
In the hoisting device, the jack support bracket is of a C-shaped structure; a lifting lug is arranged at the top of the C-shaped opening end and is connected with the lifting hook; the bottom of the C-shaped opening end of the jack support bracket is provided with a mounting hole; the mounting hole is provided with a rotating mechanism; and a jack is arranged at the top of the rotating mechanism.
In the hoisting device, the rotating mechanism comprises a thrust bearing arranged at the top opening of the mounting hole; an annular seat plate at the bottom of the thrust bearing is fixedly connected with the orifice of the mounting hole, and a rotary sliding plate at the top of the thrust bearing is fixedly connected with an outer ring of the roller bearing; the inner ring of the roller bearing is fixedly connected with the rotating shaft, and the bottom of the rotating shaft is provided with a limit pin.
In the hoisting device, the top end of the rotating shaft is provided with a hoop; the anchor ear is fixedly connected with the jack which is horizontally arranged through a bolt.
Due to the adoption of the technical scheme, compared with the prior art, the adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack replaces the existing technology of adjusting and hoisting the jack by manpower and a crane. The T-beam hogging moment prestress tensioning jack can be guided on the bridge floor, the height of the jack is adjusted, and the jack is rotated to a designed tensioning position, so that the construction efficiency is greatly improved, labor and hoisting machinery are reduced, the construction cost is saved, and the construction safety is ensured. The device of the invention has simple and convenient processing, convenient and fast walking on the bridge floor, flexible adjustment of the height and direction of the jack, and can be used repeatedly. The device is suitable for adjusting and hoisting the hogging moment prestress tensioning jacks of various bridge T beams.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a lifting frame of the invention;
FIG. 3 is a schematic view of the construction of the traverser rail of the present invention;
FIG. 4 is a schematic view of the construction of the jack support bracket of the present invention;
fig. 5 is a schematic structural view of the rotating mechanism of the present invention.
The labels in the figures are: 1-lifting frame, 2-longitudinal moving roller, 3-transverse moving rail, 4-transverse moving roller, 5-lifting shaft, 6-steel ring, 7-height adjusting hoist, 8-steel cable, 9-jack bracket, 10-jack, 11-bottom frame, 12-upright post, 13-top frame, 14-inclined strut, 15-top cover bracket, 16-canopy, 17-angle steel, 18-gap, 19-lifting hook, 20-lifting lug, 21-rotating mechanism, 22-thrust bearing, 23-annular seat plate, 24-rotating sliding plate, 25-roller bearing, 26-outer ring, 27-inner ring, 28-rotating shaft, 29-limit pin, 30-hoop and 31-bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention discloses an adjusting and hoisting device for a T-beam hogging moment prestress tensioning jack, which comprises a hoisting frame 1 as shown in figures 1-5; four corners of the bottom of the lifting frame 1 are provided with longitudinal moving rollers 2, the top of the lifting frame 1 is provided with a transverse moving track 3, the transverse moving track 3 is provided with a pair of transverse moving rollers 4, and the transverse moving rollers 4 are connected through a lifting shaft 5; the hanging shaft 5 is connected with the top of a height adjusting hoist 7 through a steel ring 6, and a steel cable 8 at the bottom of the height adjusting hoist 7 is connected with a jack support bracket 9; a jack 10 is arranged on the jack support bracket 9.
As shown in fig. 2, the lifting frame 1 comprises a bottom frame 11, and the longitudinal moving rollers 2 are installed at two sides of four corners of the bottom frame 11; upright columns 12 are arranged at four corners of the bottom frame 11, and the top ends of the upright columns 12 are connected with a top frame 13; symmetrical inclined struts 14 are arranged between the bottom frame 11 and the top frame 13; a group of top cover brackets 15 are arranged at the top of the top frame 13, and a rain shed 16 is arranged on the top cover brackets 15; the aforementioned traverse rail 3 is provided in the middle of the top frame 13.
As shown in fig. 3, the traverse rail 3 includes two symmetrical angle irons 17; two ends of two symmetrical angle steels 17 are welded with the inner side of the top frame 13; a gap 18 is reserved between the two symmetrical angle steels 17; each angle steel 17 is provided with a traversing roller 4, and a pair of traversing rollers 4 are rotatably connected through a hanging shaft 5; the hanging shaft 5 is provided with a steel ring 6, and the steel ring 6 penetrates through the gap 18 to be connected with the top of the height-adjusting hoist 7 at the bottom. The height adjusting hoist 7 adopts a finished product electric hoist, and a lifting hook 19 at the bottom of the finished product electric hoist is connected with the jack bearing bracket 9.
As shown in fig. 4, the jack support bracket 9 is a C-shaped structure; a lifting lug 20 is arranged at the top of the C-shaped opening end, and the lifting lug 20 is connected with the lifting hook 19; the bottom of the C-shaped opening end of the jack support bracket 9 is provided with a mounting hole; the mounting hole is provided with a rotating mechanism 21; the jack 10 is installed on the top of the rotating mechanism 21. The top end of the rotating shaft 28 is provided with a hoop 30; the anchor ear 30 is fixedly connected with the jack 10 which is horizontally arranged through a bolt 31.
As shown in fig. 5, the rotating mechanism 21 includes a thrust bearing 22 mounted at the top opening of the mounting hole; an annular seat plate 23 at the bottom of the thrust bearing 22 is fixedly connected with the orifice of the mounting hole, and a rotary sliding plate 24 at the top of the thrust bearing 22 is fixedly connected with an outer ring 26 of a roller bearing 25; an inner ring 27 of the roller bearing 25 is fixedly connected with a rotating shaft 28, and a limit pin 29 is arranged at the bottom of the rotating shaft 28.
Example (b):
the device of the embodiment comprises a lifting frame 1; a traversing roller 4; traversing the track 3; a steel ring 6; a height adjusting hoist 7; a jack support bracket 9; a jack 10; a top cover bracket 15; longitudinally moving the roller 2; a hoop 30; a roller bearing 25; a rotating shaft 28; a stopper pin 29; a bolt 31; thrust bearing 22, etc.
In specific implementation, as shown in fig. 1, a canopy 16 is mounted on a top cover support 15, a transverse moving rail 3 is welded at the middle position of the top of a lifting frame 1, two longitudinal moving rollers 2 are welded at two ends of the lower portion of the lifting frame 1, a transverse moving roller 4 is mounted on the transverse moving rail 3, a steel ring 6 is sleeved on the transverse moving roller 4, a height adjusting hoist 7 is hung at the lower end of the steel ring 6, a jack bearing bracket 9 is hung on the height adjusting hoist 7, a jack 10 is mounted on the jack bearing bracket 9, the jack 10 is fixed by using a hoop 30, the hoop 30 is fixed by using a bolt 31, a rotating shaft 28 is welded at the lower portion of the hoop 30, the rotating shaft 28 is connected with a roller bearing 25, the rotating shaft 28 is inserted into a mounting hole at the lower portion of the jack bearing; and installing the integral device for adjusting the lifting jack according to the steps.
Working process and principle of the invention
The hoisting frame 1 is processed by high-quality square steel, splayed inclined struts 14 are welded on the side faces of the hoisting frame 1 for fixation, transverse moving rails 3 are welded at the middle positions of the top of the hoisting frame 1, a top cover support 15 of a high-quality square steel welding bidirectional transverse slope is used at the top of the hoisting frame 1, a canopy 16 is arranged on the top cover support 15 and is fixed by color steel tile rivets, and two pairs of longitudinal moving rollers 2 are mounted on the lower portion of the hoisting frame 1 to form an integral walking and transporting support frame system.
A pair of traverse rollers 4 is provided on the traverse rail 3. The pair of transverse moving rollers 4 are connected through a hanging shaft 5, a steel ring 6 is sleeved on the hanging shaft 5, a height adjusting hoist 7 is hung on the steel ring 6, a jack support bracket 9 is hung on the height adjusting hoist 7, the jack support bracket 9 is a C-shaped rod piece formed by welding two pieces of channel steel in parallel, a lifting lug 20 is welded at the upper end of the C-shaped rod piece, a mounting hole is drilled at the lower end of the C-shaped rod piece, and a thrust bearing 22 is welded on the periphery of the mounting hole;
the top of the hoop 30 is welded with a rotating shaft 28, the rotating shaft 28 is fixedly connected with an inner ring 27 of the roller bearing 25, and the hoop 30 is hooped on the jack 10 and fixed by using a bolt 31. A rotating mechanism 21 constituting the jack 10; the rotation shaft 28 is inserted into the mounting hole at the lower part of the jack support bracket 9, and the rotation shaft 28 is prevented from falling off by using the limit pin 29.
When the device is used, the device is moved to a tensioning position, the height of the jack 10 is adjusted by using the height adjusting hoist 7 and the jack bearing bracket 9, the jack 10 is rotated to a T-beam wet joint position, the height adjusting hoist 7 is continuously released to enable the jack 10 to reach the tensioning position, the jack 10 is rotated to an accurate tensioning direction, a working anchorage device and a working clamping piece are installed to perform whole-bundle tensioning work, and the sequence is repeatedly circulated to comprehensively realize the T-beam hogging moment prestress tensioning work after tensioning is completed.
The device of the invention replaces the existing technology of manually adjusting the hoisting jack by a crane, can guide the T-beam hogging moment prestress tensioning jack on the bridge floor, adjust the height of the jack and rotate the jack to the designed tensioning position, greatly improves the construction efficiency, reduces the labor and hoisting machinery, saves the construction cost and ensures the construction safety. The device of the invention has simple and convenient processing, convenient and fast walking on the bridge floor, flexible adjustment of the height and direction of the jack, and can be used repeatedly. The device is suitable for adjusting and hoisting the hogging moment prestress tensioning jacks of various bridge T beams.
Claims (7)
1. An adjusting and hoisting device of a T-beam hogging moment prestress tensioning jack comprises a hoisting frame (1); the method is characterized in that: longitudinal moving rollers (2) are arranged at four corners of the bottom of the lifting frame (1), a transverse moving track (3) is arranged at the top of the lifting frame (1), a pair of transverse moving rollers (4) are arranged on the transverse moving track (3), and the transverse moving rollers (4) are connected through a lifting shaft (5); the hanging shaft (5) is connected with the top of the height adjusting hoist (7) through a steel ring (6), and a steel cable (8) at the bottom of the height adjusting hoist (7) is connected with a jack bearing bracket (9); a jack (10) is arranged on the jack support bracket (9).
2. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 1, which is characterized in that: the lifting frame (1) comprises a bottom frame (11), and the longitudinal moving rollers (2) are arranged on two sides of four corners of the bottom frame (11); upright columns (12) are arranged at four corners of the bottom frame (11), and the top ends of the upright columns (12) are connected with the top frame (13); symmetrical inclined struts (14) are arranged between the bottom frame (11) and the top frame (13); a group of top cover brackets (15) are arranged at the top of the top frame (13), and a rain shed (16) is arranged on each top cover bracket (15); the transverse moving track (3) is arranged in the middle of the top frame (13).
3. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 1, which is characterized in that: the transverse moving track (3) comprises two symmetrical angle steels (17); two ends of two symmetrical angle steels (17) are welded with the inner side of the top frame (13); a gap (18) is reserved between the two symmetrical angle steels (17); each angle steel (17) is provided with a transverse moving roller (4), and a pair of transverse moving rollers (4) are rotatably connected through a hanging shaft (5); the hanging shaft (5) is provided with a steel ring (6), and the steel ring (6) penetrates through the gap (18) to be connected with the top of the height adjusting hoist (7) at the bottom.
4. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 1, which is characterized in that: the height adjusting hoist (7) is a finished product electric hoist, and a lifting hook (19) at the bottom of the finished product electric hoist is connected with a jack bearing bracket (9).
5. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 4, which is characterized in that: the jack support bracket (9) is of a C-shaped structure; a lifting lug (20) is arranged at the top of the C-shaped opening end, and the lifting lug (20) is connected with the lifting hook (19); the bottom of the C-shaped opening end of the jack support bracket (9) is provided with a mounting hole; a rotating mechanism (21) is arranged on the mounting hole; the top of the rotating mechanism (21) is provided with a jack (10).
6. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 5, which is characterized in that: the rotating mechanism (21) comprises a thrust bearing (22) installed at the top opening of the installation hole; an annular seat plate (23) at the bottom of the thrust bearing (22) is fixedly connected with the orifice of the mounting hole, and a rotary sliding plate (24) at the top of the thrust bearing (22) is fixedly connected with an outer ring (26) of a roller bearing (25); an inner ring (27) of the roller bearing (25) is fixedly connected with a rotating shaft (28), and a limiting pin (29) is arranged at the bottom of the rotating shaft (28).
7. The adjusting and hoisting device for the T-beam hogging moment prestress tensioning jack according to claim 6, which is characterized in that: the top end of the rotating shaft (28) is provided with a hoop (30); the anchor ear (30) is fixedly connected with the jack (10) which is horizontally arranged through a bolt (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645701.6A CN111717785A (en) | 2020-07-07 | 2020-07-07 | Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645701.6A CN111717785A (en) | 2020-07-07 | 2020-07-07 | Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111717785A true CN111717785A (en) | 2020-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010645701.6A Pending CN111717785A (en) | 2020-07-07 | 2020-07-07 | Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111717785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942119A (en) * | 2021-02-02 | 2021-06-11 | 中铁二十二局集团第一工程有限公司 | Full-automatic hogging moment tensioning trolley |
| CN113511580A (en) * | 2021-07-20 | 2021-10-19 | 浙江运达风电股份有限公司 | Wind generating set becomes oar switch board installation hoist |
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| CN1766354A (en) * | 2005-12-09 | 2006-05-03 | 杨和平 | Large-scale heavy duty rolling bearing with dual functions of aligning and axial moving |
| CN201068928Y (en) * | 2007-06-19 | 2008-06-04 | 西北轴承股份有限公司 | Bidirectional thrust combined bearing |
| CN203393632U (en) * | 2013-07-27 | 2014-01-15 | 中铁七局集团第三工程有限公司 | Movable formwork device for negative bending moment tension of precast T-beam flange plate |
| CN209081268U (en) * | 2018-11-08 | 2019-07-09 | 中国建筑第四工程局有限公司 | A kind of movable operation frame applying to T negative moment of girder tensioning |
| CN212403165U (en) * | 2020-07-07 | 2021-01-26 | 中国建筑第四工程局有限公司 | Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack |
-
2020
- 2020-07-07 CN CN202010645701.6A patent/CN111717785A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766354A (en) * | 2005-12-09 | 2006-05-03 | 杨和平 | Large-scale heavy duty rolling bearing with dual functions of aligning and axial moving |
| CN201068928Y (en) * | 2007-06-19 | 2008-06-04 | 西北轴承股份有限公司 | Bidirectional thrust combined bearing |
| CN203393632U (en) * | 2013-07-27 | 2014-01-15 | 中铁七局集团第三工程有限公司 | Movable formwork device for negative bending moment tension of precast T-beam flange plate |
| CN209081268U (en) * | 2018-11-08 | 2019-07-09 | 中国建筑第四工程局有限公司 | A kind of movable operation frame applying to T negative moment of girder tensioning |
| CN212403165U (en) * | 2020-07-07 | 2021-01-26 | 中国建筑第四工程局有限公司 | Adjusting and hoisting device for T-beam hogging moment prestress tensioning jack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942119A (en) * | 2021-02-02 | 2021-06-11 | 中铁二十二局集团第一工程有限公司 | Full-automatic hogging moment tensioning trolley |
| CN113511580A (en) * | 2021-07-20 | 2021-10-19 | 浙江运达风电股份有限公司 | Wind generating set becomes oar switch board installation hoist |
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