CN212611888U - A two-dimensional positioning device for steel box girder installation and a steel box girder hoisting system - Google Patents
A two-dimensional positioning device for steel box girder installation and a steel box girder hoisting system Download PDFInfo
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- CN212611888U CN212611888U CN202021038432.9U CN202021038432U CN212611888U CN 212611888 U CN212611888 U CN 212611888U CN 202021038432 U CN202021038432 U CN 202021038432U CN 212611888 U CN212611888 U CN 212611888U
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Abstract
本实用新型涉及一种钢箱梁安装的二维调位装置，包括液压千斤顶、基座、滑动底座、钢丝绳、滑动结构；液压千斤顶固定在滑动底座的上端，基座内设有供滑动底座前后直线滑移的容腔，基座的上端设有供滑动底座穿过的滑槽，滑动底座的前端和后端均连接钢丝绳，钢丝绳从基座伸出，滑动底座和基座的内侧之间设有滑动结构。还涉及钢箱梁吊装系统，包括临时支墩、支座、吊装装置、牵引装置和钢箱梁安装的二维调位装置。本实用新型结构简单、易于装配、安装方便、可重复利用，属于桥梁施工装置领域。
The utility model relates to a two-dimensional positioning device installed on a steel box beam, comprising a hydraulic jack, a base, a sliding base, a steel wire rope and a sliding structure; the hydraulic jack is fixed on the upper end of the sliding base, and the base is provided with front and rear for the sliding base Linear sliding cavity, the upper end of the base is provided with a chute for the sliding base to pass through, the front and rear ends of the sliding base are connected with steel wire ropes, the steel wire ropes extend from the base, and a set between the sliding base and the inner side of the base is provided. Has a sliding structure. It also relates to a steel box girder hoisting system, including temporary buttresses, supports, hoisting devices, traction devices and two-dimensional positioning devices for steel box girder installation. The utility model has the advantages of simple structure, easy assembly, convenient installation and reusability, and belongs to the field of bridge construction devices.
Description
Technical Field
The utility model relates to a bridge construction equipment field, concretely relates to two dimension positioner of steel case roof beam installation still relates to steel case roof beam hoist and mount system.
Background
At present, the steel box girder is lighter than a concrete box girder in the field of bridge construction in China, the construction period is short, and the flow line production effect is good, so that the steel box girder is widely used in urban overpass bridges. The construction of the steel box girder widely adopts mechanical hoisting technologies such as truck cranes and the like, and the requirement on the precision control is high. Generally, the measurer is arranged in alignment after putting the wire before hoisting. The technician also spends a significant amount of time directing the installer to perform more accurate installation. This also wastes many machine shifts for large-scale machine work, which is not favorable for saving construction cost. And the subsequent adjustment is difficult to be carried out after the crane is withdrawn from the field. Easily causes installation errors and also easily causes troubles for subsequent construction work.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims at: the two-dimensional position adjusting device is adjustable in height and horizontal one-way position, and accordingly assists the steel box girder mounted on the support.
The utility model discloses another purpose is: the steel box girder hoisting system is easy to accurately align and install the steel box girder in the hoisting process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a two-dimensional position adjusting device for mounting a steel box girder comprises a hydraulic jack, a base, a sliding base, a steel wire rope and a sliding structure; the hydraulic jack is fixed in the upper end of sliding base, is equipped with the appearance chamber that supplies sliding base front and back straight line to slide in the base, and the upper end of base is equipped with the spout that supplies sliding base to pass, and wire rope is all connected to sliding base's front end and rear end, and wire rope stretches out from the base, is equipped with sliding structure between the inboard of sliding base and base. After the structure is adopted, the position of the steel box girder in the horizontal one-way direction and the height direction can be adjusted.
Preferably, the sliding base comprises a cubic portion with an upper cylindrical portion and a lower cylindrical portion, an upper sliding structure is arranged between the cylindrical portion and the inner side of the base, and a base sliding structure is arranged between the lower side of the cubic portion and the inner side of the base. After adopting this kind of structure, support steadily, it is smooth and easy to slide.
Preferably, the upper sliding structure is a rack and pinion mechanism, a gear in the rack and pinion mechanism is sleeved outside the cylindrical part, one side of the inner side of the base is processed into a tooth form to form a rack in the rack and pinion mechanism, and the other side of the inner side of the base is a smooth surface directly contacted with the gear. After adopting this kind of structure, the positioning accuracy is higher.
Preferably, the bottom sliding structure comprises a steel ball seat and a steel ball; the steel ball seat is fixed at the bottom of the inner side of the base, a plurality of steel ball mounting grooves are formed in the steel ball seat, and a steel ball is arranged in each steel ball mounting groove; the sliding base slides on the steel balls. After adopting this kind of structure, the positioning is steady.
Preferably, the steel ball mounting grooves are arranged on the steel ball seat in a rectangular array; the width of the coverage area of the steel ball mounting groove is larger than that of the cubic part in the left-right direction. After adopting this kind of structure, frictional force is little, and the level is transferred smoothly.
Preferably, the hydraulic jack is provided with a high-strength spring which is compressed in the height direction. After the structure is adopted, the high-strength spring plays a role in buffering, and the steel box girder and the hydraulic jack are effectively protected.
Preferably, the contact surface of the hydraulic jack and the steel box girder is provided with a protective layer for increasing friction force. After adopting this kind of structure, prevent steel case roof beam surface paint wearing and tearing, the protective capacities is good.
Preferably, the base is cube-shaped; end covers are arranged on the front side and the rear side of the base, and through holes for the steel wire ropes to extend out are formed in the end covers. After adopting this kind of structure, stability is good, and bearing capacity is strong.
Preferably, the steel box girder hoisting system comprises a temporary buttress, a support, a hoisting device, a traction device and a two-dimensional position adjusting device; the two-dimensional positioning device is arranged on the temporary buttress and beside the support; the hoisting device hoists the steel box girder, and the steel box girder is arranged on the support or the hydraulic jack; the traction device is connected with the steel wire rope; when the hydraulic jack rises to the highest position, the upper end of the hydraulic jack is higher than the upper end of the support; when the hydraulic jack descends to the lowest position, the upper end of the hydraulic jack is lower than the upper end of the support. After adopting this kind of structure, simple to operate, it is accurate to counterpoint.
Preferably, the traction device is a chain block; the number of the traction devices is two, and the two traction devices are respectively connected with the two steel wire ropes. After adopting this kind of structure, the positioning is convenient.
In general, the utility model has the advantages as follows:
1. simple structure, easily assembly, simple to operate, the base is the cube bodily form, has satisfied the space demand of steel box girder horizontal direction one-way accent position.
2. The protective capability is strong, and hydraulic jack is last to be equipped with the high strength spring of compression in the direction of height, provides the buffer power, and the contact surface sets up the protective layer that increases frictional force simultaneously, not only realizes the complete contact of contact surface, has also increased the frictional force between two-dimensional positioning device and steel box girder, has protected the crude oil paint of steel box girder not damaged, has protected the outward appearance of steel box girder.
3. The positioning is accurate, the sliding base is pulled to slide on the steel balls through the traction device, the gear is sleeved on the cylindrical part above the sliding base, and the cylindrical part and the rack on the inner side of the base form a gear rack mechanism, so that the accurate positioning can be realized.
4. Repeatedly usable, the hydraulic jack descends in the back of steel case roof beam positioning completion, transfers to the position lower than the support upper end on the interim buttress, can normally dismantle, then waits to install the use next time.
Drawings
Fig. 1 is a front sectional view of the two-dimensional positioning device for the steel box girder.
Fig. 2 is a side view of the two-dimensional positioning device for the steel box girder.
Fig. 3 is a side sectional view of the two-dimensional positioning device for the steel box girder.
Fig. 4 is a cross-sectional view a-a of fig. 1.
Fig. 5 is a sectional view of B-B in fig. 1.
The hydraulic jack comprises a hydraulic jack 1, a high-strength spring 2, a base 3, a gear 4, a sliding base 5, a rack 6, a steel wire rope 7, a steel ball 8, a steel ball mounting groove 9, a protective layer 10, an end cover 11, a cylindrical part 5-1 and a cubic part 5-2.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example one
A two-dimensional position adjusting device for mounting a steel box girder comprises a hydraulic jack, a base, a sliding base, a steel wire rope and a sliding structure; the hydraulic jack is fixed in the upper end of sliding base, is equipped with the appearance chamber that supplies sliding base front and back straight line to slide in the base, and the upper end of base is equipped with the spout that supplies sliding base to pass, and wire rope is all connected to sliding base's front end and rear end, and wire rope stretches out from the base, is equipped with sliding structure between the inboard of sliding base and base.
The sliding base comprises a cubic part, wherein the cylindrical part located above is located below, an upper sliding structure is arranged between the cylindrical part and the inner side of the base, and a base sliding structure is arranged between the lower side of the cubic part and the inner side of the base.
The upper sliding structure is a gear rack mechanism, a gear in the gear rack mechanism is sleeved outside the cylindrical part, one side of the inner side of the base is processed into a tooth form to form a rack in the gear rack mechanism, and the other side of the inner side of the base is a smooth surface directly contacted with the gear.
The bottom sliding structure comprises a steel ball seat and a steel ball; the steel ball seat is fixed at the bottom of the inner side of the base, a plurality of steel ball mounting grooves are formed in the steel ball seat, and a steel ball is arranged in each steel ball mounting groove; the sliding base slides on the steel balls. The bead mounting grooves are arranged on the steel bead seat in a rectangular array; the width of the coverage area of the steel ball mounting groove is larger than that of the cubic part in the left-right direction.
The base is in a cube shape; end covers are arranged on the front side and the rear side of the base, and through holes for the steel wire ropes to extend out are formed in the end covers.
The hydraulic jack is provided with a compressible high-strength spring in the height direction, and a protective layer for increasing friction force is arranged on the contact surface of the hydraulic jack and the steel box girder; the high-strength spring plays a role in buffering when the steel box girder is hoisted to the two-dimensional position adjustment, and the damage caused by overlarge instantaneous pressure on the two-dimensional position adjustment device is avoided; the protective layer also plays a buffering role, meanwhile, the surface of the steel box girder is in hundred percent contact with the hydraulic jack, the protective layer is made of materials with higher friction coefficient, such as rubber, and the like, so that the friction force is increased, and the steel box girder cannot slide when being installed on the two-dimensional positioning device.
The cylindrical part of the sliding base is sleeved with a gear, the gear is meshed with a rack on the inner side of the base to form a gear-rack structure, when the steel box girder is installed, the traction device drives the steel wire rope connected with the gear-rack structure, so that the sliding base with the front end and the rear end connected with the steel wire rope slides, the sliding base starts to rotate after being sleeved on the sliding base under the action of traction force, and slides on a steel ball plane, so that the position of the steel box girder in the horizontal single direction is adjusted.
Example two
The steel box girder hoisting system comprises a temporary buttress, a support, a hoisting device, a traction device and the two-dimensional position adjusting device of the first embodiment.
The traction device is a chain block; the number of the traction devices is two, and the two traction devices are respectively connected with the two steel wire ropes.
The two-dimensional positioning device is arranged on the temporary buttress before the steel box girder is installed and is positioned beside the support, when the position of the steel box girder is adjusted, the hydraulic jack is lifted to be higher than the top end of the temporary support on the temporary buttress, the hydraulic jack of the two-dimensional positioning device is guaranteed to be firstly in contact with the steel box girder, and the steel box girder is prevented from being hoisted to the support by the hoisting device and needs to be hoisted again. After the steel box girder is hoisted to the two-dimensional position adjusting device, the horizontal one-way position of the steel box girder is adjusted through the traction device. After the installation positioning is finished, the hydraulic jack is lowered to be lower than the top end of the support, the support supports the steel box girder at the moment, the positioning in the height direction of the steel box girder is completed, and the two-dimensional positioning device can be detached to carry out the installation positioning of the steel box girder of the next round.
Above-mentioned embodiment does the utility model discloses the embodiment of preferred, nevertheless the utility model discloses an embodiment does not receive the restriction of above-mentioned embodiment, cup joints at cylinder part supporting bearing and cup joints if the gear, and the cylinder part is at the upper and lower pot head upper shaft sleeve who cup joints the gear, and restriction bearing inner race rolls, sets up like this and has further reduced the relative pivoted frictional force of cylinder part when gear revolve, reduces the required pulling force that provides of draw gear. The two through holes for the steel wire ropes to pass through arranged on the end cover of the base can be groove-shaped holes, and the size of the through holes can include the two steel wire ropes which extend out of the base in parallel. Other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a two-dimensional positioning device of steel box girder installation which characterized in that: the hydraulic jack comprises a hydraulic jack, a base, a sliding base, a steel wire rope and a sliding structure; the hydraulic jack is fixed in the upper end of sliding base, is equipped with the appearance chamber that supplies sliding base front and back straight line to slide in the base, and the upper end of base is equipped with the spout that supplies sliding base to pass, and wire rope is all connected to sliding base's front end and rear end, and wire rope stretches out from the base, is equipped with sliding structure between the inboard of sliding base and base.
2. The two-dimensional positioning device for mounting the steel box girder as recited in claim 1, wherein: the sliding base comprises a cylinder part located above and a cube part located below, an upper sliding structure is arranged between the cylinder part and the inner side of the base, and a bottom sliding structure is arranged between the lower side of the cube part and the inner side of the base.
3. A two-dimensional positioning device for mounting a steel box girder according to claim 2, wherein: the upper sliding structure is a gear rack mechanism, a gear in the gear rack mechanism is sleeved outside the cylindrical part, one side of the inner side of the base is processed into a tooth form to form a rack in the gear rack mechanism, and the other side of the inner side of the base is a smooth surface directly contacted with the gear.
4. A two-dimensional positioning device for mounting a steel box girder according to claim 2, wherein: the bottom sliding structure comprises a steel ball seat and a steel ball; the steel ball seat is fixed at the bottom of the inner side of the base, a plurality of steel ball mounting grooves are formed in the steel ball seat, and a steel ball is arranged in each steel ball mounting groove; the sliding base slides on the steel balls.
5. The two-dimensional positioning device for mounting the steel box girder as recited in claim 4, wherein: the steel ball mounting grooves are arranged on the steel ball seat in a rectangular array; in the left-right direction, the width of the steel ball mounting groove coverage area is larger than the width of the cubic part.
6. The two-dimensional positioning device for mounting the steel box girder as recited in claim 1, wherein: the hydraulic jack is provided with a high-strength spring compressed in the height direction.
7. The two-dimensional positioning device for mounting the steel box girder as recited in claim 1, wherein: the contact surface of the hydraulic jack and the steel box girder is provided with a protective layer for increasing friction force.
8. The two-dimensional positioning device for mounting the steel box girder as recited in claim 1, wherein: the base is in a cube shape; end covers are arranged on the front side and the rear side of the base, and through holes for the steel wire ropes to extend out are formed in the end covers.
9. Steel case roof beam hoist and mount system, its characterized in that: the steel box girder positioning device comprises a temporary buttress, a support, a hoisting device, a traction device and a two-dimensional positioning device installed on the steel box girder according to any one of claims 1 to 8; the two-dimensional positioning device is arranged on the temporary buttress and beside the support; the hoisting device hoists the steel box girder, and the steel box girder is arranged on the support or the hydraulic jack; the traction device is connected with the steel wire rope; when the hydraulic jack rises to the highest position, the upper end of the hydraulic jack is higher than the upper end of the support; when the hydraulic jack descends to the lowest position, the upper end of the hydraulic jack is lower than the upper end of the support.
10. The steel box girder hoisting system according to claim 9, wherein: the traction device is a chain block; the number of the traction devices is two, and the two traction devices are respectively connected with the two steel wire ropes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021038432.9U CN212611888U (en) | 2020-06-08 | 2020-06-08 | A two-dimensional positioning device for steel box girder installation and a steel box girder hoisting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021038432.9U CN212611888U (en) | 2020-06-08 | 2020-06-08 | A two-dimensional positioning device for steel box girder installation and a steel box girder hoisting system |
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| CN212611888U true CN212611888U (en) | 2021-02-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114839357A (en) * | 2022-03-25 | 2022-08-02 | 河海大学 | Device and method for testing frost heaving stress and frost heaving strain of porous asphalt mixture |
| CN115125874A (en) * | 2022-08-16 | 2022-09-30 | 石家庄方舟公路工程试验检测有限公司 | Curved beam jacking and moving device, adjusting system and adjusting method |
-
2020
- 2020-06-08 CN CN202021038432.9U patent/CN212611888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114839357A (en) * | 2022-03-25 | 2022-08-02 | 河海大学 | Device and method for testing frost heaving stress and frost heaving strain of porous asphalt mixture |
| CN115125874A (en) * | 2022-08-16 | 2022-09-30 | 石家庄方舟公路工程试验检测有限公司 | Curved beam jacking and moving device, adjusting system and adjusting method |
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