CN114012351B - Steel bridge deck fatigue crack punching device and drilling crack stopping method - Google Patents
Steel bridge deck fatigue crack punching device and drilling crack stopping method Download PDFInfo
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- CN114012351B CN114012351B CN202111166067.9A CN202111166067A CN114012351B CN 114012351 B CN114012351 B CN 114012351B CN 202111166067 A CN202111166067 A CN 202111166067A CN 114012351 B CN114012351 B CN 114012351B
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- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
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Abstract
The invention discloses a steel bridge deck fatigue crack punching device and a drilling crack stopping method, wherein the punching device comprises: the device comprises a longitudinal moving groove, an adjusting module, a drilling module, a flexible transmission structure and a power module. The drilling module is combined to realize the drilling of the welding line of the top plate and the drilling of the parent metal of the U rib in a narrow space, and the drilling maintenance has no dead angle. The conditions of slipping, deviation, depth drilling and the like are avoided by following the operations of crack mark marking, line pressing of a positioning module, pressure sensor control, drilling depth control and the like in the using method, and the drilling precision is high. Meanwhile, the device can be placed on the top plate at one time to repair the transverse same-side cracks and the longitudinal cracks with multiple tips, and the drilling efficiency is high.
Description
Technical Field
The invention relates to the field of maintenance of fatigue cracks of steel bridge deck plates, in particular to a punching device for the fatigue cracks of the steel bridge deck plates and a using method.
Background
Orthotropic steel bridge deck slab is widely applied due to the advantages of light dead weight, high strength, large span, fast construction and the like. Due to the reasons of complex structure, heavy traffic, welding defects and the like, fatigue problems occur to different degrees such as the connecting welding seam of the top plate and the U rib, the connecting welding seam of the U rib and the diaphragm plate, the arc-shaped notch and the like.
The drilling crack arrest method is used as an important measure for delaying cracking and is widely applied to fatigue maintenance of steel bridge deck slabs. Fatigue cracks originated from the extension of the weld toe of the top plate along the weld seam cause great damage to the steel bridge deck and are difficult to maintain. The processing mode of the crack arrest of the drilling at the present stage is as follows: when the crack tip is expanded to the weld surface, drilling can be carried out, and the drilling depth does not damage the top plate; when the crack tip is extended to the U-shaped rib web, drilling maintenance can be carried out perpendicular to the U-shaped rib web.
Because the distance between the U-shaped rib webs is only about 300mm, the space is narrow, dead angles exist in a traditional electric hand drill, interference factors caused by manual operation are more, the situations of slipping, deviation and the like easily occur during punching, the quality is difficult to guarantee, and the punching efficiency is low.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a steel bridge deck fatigue crack punching device and a using method thereof, which solve the problems that the drilling of the fatigue crack of a welding seam of a top plate and a U rib is inconvenient to maintain and operate, cannot be accurately positioned, is easy to slip and deviate, and the like, and the drilling efficiency can be greatly improved by one-time maintenance of the cracks on the same lateral side and the cracks on the same longitudinal side through mechanical auxiliary operation.
The technical scheme is as follows:
a steel bridge deck plate fatigue crack perforating device comprises: the device comprises a longitudinal moving groove, an adjusting module, a drilling module, a flexible transmission structure and a power module; wherein:
the longitudinal moving groove is provided with a notch along the length extending direction;
the adjusting module comprises a longitudinal sliding block, four groove-shaped covers, a vertical fixed rod, a transverse telescopic pull rod, a horizontal rotating connecting ring and a parallelogram connecting rod vertical telescopic structure; the parallelogram connecting rod telescopic structure is formed by connecting four vertical adjusting arms end to end in series;
the four groove-shaped covers are arranged at four hinge points of the parallelogram connecting rod telescopic structure in a one-to-one correspondence manner and are respectively an upper groove-shaped cover, a lower groove-shaped cover, a left groove-shaped cover and a right groove-shaped cover;
two ends of the transverse telescopic pull rod are respectively connected and fixed with the left and right trough-shaped covers;
the longitudinal sliding block is fixed with the top of the upper groove type cover and can be assembled in the notch of the longitudinal moving groove in a sliding way;
the vertical fixed rod is fixed with the bottom of the lower groove-shaped cover, and the horizontal rotary connecting ring is sleeved on the periphery of the vertical fixed rod;
the horizontal rotation connecting ring is connected with the power module sequentially through the drilling module and the flexible transmission structure.
Preferably, the drilling module comprises an axial pushing structure, an outward extending cylinder, an L-shaped baffle, a drill connecting piece, a drill, a positioning structure and a handle; wherein:
one end of the axial pushing structure is connected with the horizontal rotating connecting ring, and the other end of the axial pushing structure is provided with an outward extending cylinder and is connected with the horizontal section of the L-shaped baffle sheet through the outward extending cylinder; the vertical section of the L-shaped baffle is respectively provided with a drill bit connecting piece and a positioning structure; the drill bit is arranged on the outer side of the drill bit connecting piece;
the handle is arranged on the axial pushing structure;
the output end of the flexible transmission structure is arranged on the vertical section of the L-shaped baffle plate and is in linkage connection with the drill bit connecting piece.
Preferably, one end of the drill bit connecting piece is fixed on the vertical section of the L-shaped baffle plate through a drill bit connecting piece fixing device.
Preferably, the drill bit connector is positionally mounted in and rotatably arranged relative to the drill bit connector holder.
Preferably, the positioning structure comprises a telescopic groove, a telescopic rod and a precision control standard block; the telescopic groove is fixedly installed on the vertical section of the L-shaped separation blade, one end of the telescopic rod is telescopically arranged in the telescopic groove, and the other end of the telescopic rod extends out of the telescopic groove and can be matched with the precision control standard block.
Preferably, the flexible transmission structure comprises a space rotating joint, a bearing and a steel wire rope; the space rotating joint is provided with a plurality of joints, and each space rotating joint is sleeved on the periphery of the steel wire rope;
a bearing is arranged between two adjacent sections of space rotating joints, the inner ring of the bearing can hoop the steel wire rope, and the outer ring of the bearing is respectively connected with the two adjacent sections of space rotating joints;
wire rope) is provided with an end bearing at each end, namely end bearings a and b;
the inner rings of the end bearings a and b can clamp the steel wire rope, the outer ring of the end bearing a can be connected with the power output end of the power module, and the outer ring of the end bearing b can be connected with the drill bit connecting piece.
Preferably, a pressure sensor is arranged in the axial pushing structure.
Preferably, the overhanging cylinder is graduated.
The invention also aims to provide a drilling crack arrest method for the fatigue crack of the steel bridge deck, which is realized based on the punching device for the fatigue crack of the steel bridge deck, and comprises the following steps:
(1) Marking and scribing crack marks: observing a connecting welding seam of the top plate and the U rib, marking the tip of the crack to be repaired, recording the tip of the crack to be repaired as a tip mark point of the crack to be repaired, then marking a line downwards from the tip of the crack to be repaired to the welding seam of the top plate, taking the length d as the vertical distance from the upper edge of the precision control mark block to the tip mark point of the crack to be repaired, and simultaneously drawing a line segment parallel to the welding seam at the length d;
(2) Line pressing of the positioning module: installing the steel bridge deck plate fatigue crack punching device to the top plate, enabling the upper edge of the precision control standard block to just press the line segment parallel to the welding seam in the step (1) by utilizing the adjusting module, finely adjusting the fastening nut, enabling the precision control standard block to be tightly attached to the U-rib web plate, enabling the drilling direction of the steel bridge deck plate fatigue crack punching device to be perpendicular to the U-rib web plate, and simultaneously electrifying to enable the precision control standard block to be adsorbed on the U-rib web plate;
(3) Controlling the drilling depth: estimating the drilling depth by observing scales of the outward extending cylinder at any time, and stopping the drilling module when a pressure value fed back by a pressure sensor arranged in the axial pushing structure is in a preset range;
(5) After the drilling is finished, the position of the longitudinal sliding block is adjusted to punch another tip of the crack to be repaired, or the horizontal rotating connecting ring is rotated to maintain the horizontal same-side crack.
Has the advantages that:
according to the invention, through the cooperative work of the longitudinal moving groove, the adjusting module, the drilling module and the flexible transmission structure, the complex motions of longitudinal moving, vertical adjusting, horizontal plane rotation and the like are realized, the drilling of the welding seam of the top plate and the drilling of the parent metal of the U rib in a narrow space are realized by combining the drilling module, and no dead angle is generated in the drilling maintenance. The drilling method has the advantages that the operations of crack mark scribing, positioning module line pressing, pressure sensor control, drilling depth control and the like in the drilling crack arrest method are followed, the situations of slipping, deviation, drilling depth and the like are avoided, and the drilling precision is high. Meanwhile, the device can be placed on the top plate at one time to repair the transverse same-side cracks and the longitudinal cracks with multiple tips, and the drilling efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a conditioning module of the present invention;
FIG. 3 is a drilling module of the present invention;
FIG. 4 is a flexible drive configuration of the present invention;
FIG. 5 is a positioning module of the present invention;
FIG. 6 is a schematic view of crack tip marking;
FIG. 7 is a schematic view of an embodiment;
the device comprises a longitudinal moving groove 1, an adjusting module 2, a drilling module 3, a flexible transmission structure 4, a power module 5, a longitudinal sliding block 21, a vertical adjusting arm 22, a groove-shaped cover 23, a horizontal rotating connecting ring 24, a vertical fixing rod 25, a transverse telescopic pull rod 26, a fastening nut 27, an axial pushing structure 31, an outward extending cylinder 32, an L-shaped baffle 33, a drill connecting piece 34, a drill connecting piece fixing device 341, a drill 35, a positioning structure 36, a handle 37, a space rotating joint 41, a bearing 42, a steel wire rope 43, a telescopic groove 361, a telescopic rod 362 and a precision control standard block 363.
Detailed Description
As shown in figure 1, the punching device for the fatigue cracks of the steel bridge deck comprises a longitudinal moving groove 1, an adjusting module 2, a drilling module 3, a flexible transmission structure 4 and a power module 5;
as shown in fig. 2 to 4, the longitudinal moving groove 1 is provided with a notch along the length extending direction, and the length extending direction of the longitudinal moving groove 1 is the longitudinal direction; the adjusting module 2 comprises a longitudinal sliding block 21, four groove-shaped covers 23, a vertical fixing rod 25, a transverse telescopic pull rod 26, a horizontal rotary connecting ring 24 and a parallelogram connecting rod vertical telescopic structure; the parallelogram connecting rod telescopic structure is formed by connecting four vertical adjusting arms 22 in series end to end; the four groove-shaped covers 23 are correspondingly arranged at four hinge points of the parallelogram connecting rod telescopic structure one by one and are respectively an upper groove-shaped cover, a lower groove-shaped cover, a left groove-shaped cover and a right groove-shaped cover; two ends of the transverse telescopic pull rod 26 are respectively connected and fixed with the left and right trough-shaped covers; the longitudinal sliding block 21 is fixed with the top of the upper groove-shaped cover and can be slidably assembled in the notch of the longitudinal moving groove 1; the vertical fixed rod 25 is fixed with the bottom of the lower trough-shaped cover, and the horizontal rotary connecting ring 24 is sleeved on the periphery of the vertical fixed rod 25; the horizontal rotation connecting ring 24 is connected with the power module 5 through the drilling module 3 and the flexible transmission structure 4 in sequence.
The drilling module 3 comprises an axial pushing structure 31, an outward extending cylinder 32, an L-shaped baffle 33, a drill connecting piece 34, a drill 35, a positioning structure 36 and a handle 37; wherein: one end of the axial pushing structure 31 is connected with the horizontal rotary connecting ring 24, and the other end is provided with an outward extending cylinder 32 and is connected with the horizontal section of the L-shaped baffle 33 through the outward extending cylinder 32; the vertical section of the L-shaped baffle 33 is respectively provided with a drill bit connecting piece 34 and a positioning structure 36; the drill bit 35 is arranged on the outer side of the drill bit connecting piece 34; a handle 37 is mounted on said axial pushing structure 31; the output end of the flexible transmission structure 4 is arranged on the vertical section of the L-shaped baffle 33 and is in linkage connection with the drill bit connecting piece 34. In the present invention, one end of the drill bit connector 34 is fixed to the vertical section of the L-shaped fence 33 by the drill bit connector fixing means 341. And the bit connector 34 is positioned in the bit connector holder 341 and rotatably disposed with respect to the bit connector holder 341. A pressure sensor is arranged in the axial pushing structure 31. The overhanging cylinder 32 is graduated.
The positioning structure 36 comprises a telescopic groove 361, a telescopic rod 362 and a precision control gauge block 363; the telescopic slot 361 is fixedly installed on the vertical section of the L-shaped blocking piece 33, one end of the telescopic rod 362 is telescopically arranged in the telescopic slot 361, and the other end of the telescopic rod 362 extends out of the telescopic slot 361 and can be connected with the precision control standard block 363.
The flexible transmission structure 4 comprises a space rotating joint 41, a bearing 42 and a steel wire rope 43; the space rotating joint 41 is provided with a plurality of joints, and each space rotating joint 41 is sleeved on the periphery of the steel wire rope 43; a bearing 42 is arranged between two adjacent sections of space rotating joints 41, the inner ring of the bearing 42 can clamp the steel wire rope 43, and the outer ring of the bearing 42 is respectively connected with the two adjacent sections of space rotating joints 41; two ends of the steel wire rope 43 are respectively provided with an end bearing, namely an end bearing a and an end bearing b; the inner rings of the end bearings a and b can clamp the steel wire rope 43, the outer ring of the end bearing a can be connected with the power output end of the power module 5, and the outer ring of the end bearing b can be connected with the drill bit connecting piece 34.
As shown in fig. 5-6, the upper edge of the precision control gauge block 363 just presses the scribe line 364 parallel to the weld joint, and the precision control gauge block 363 is adsorbed on the U-rib web plate after being electrified to avoid the situations of slipping, deviation and the like easily occurring during punching;
fig. 7 shows an embodiment in which the longitudinal slide block 21 is movable in the longitudinal movement groove 1; the vertical adjusting arm 22 can rotate around the groove-shaped cover 23, the transverse telescopic pull rods 26 can be staggered, and the fastening nuts 27 can be rotated for fixation; the horizontal rotary connecting ring 24 can horizontally rotate around the vertical fixing rod 25 and is pinned with the axial pushing structure 31; the overhanging cylinder 32 is axially movable within the axial pushing structure 31; the extension rod 362 can extend and contract in the extension groove 361; the drill bit 35 is replaceable and the drill bit connector 34 is rotatable within the drill bit connector holder 341, with the remaining connections being solid.
Before maintenance, the position of the tip of the crack, namely the drilling position, is determined, the downward distance of the vertical welding line is d, meanwhile, a parallel line segment 364 is drawn on the U-rib base metal 12, the device is adsorbed on the top plate 11 through a longitudinal moving groove, and the power module 5 is adsorbed on the diaphragm plate 13.
And moving the longitudinal sliding block 21 to enable the device to be located at a proper position, loosening the fastening nut 27 to adjust the vertical height, rotating the drilling module 3 in the horizontal plane to enable the upper edge of the precision control gauge block 363 to just press the scribing line 364 and to cling to the web of the U rib 12, enabling the drill 35 to be perpendicular to the web of the U rib 12, electrifying the precision control gauge block 363, and screwing the fastening nut 27.
Starting drilling, observing the scales of the extended cylinder 32, and stopping the drilling module 3 when a pressure sensor arranged in the axial pushing structure 31 senses extremely small pressure; after the drilling is finished, the other tip of the crack can be drilled by adjusting the position of the longitudinal sliding block 21, or the horizontal rotating connecting ring 24 is rotated to repair the horizontal same-side crack.
Claims (9)
1. The utility model provides a steel decking fatigue crack perforating device which characterized in that includes: the drilling machine comprises a longitudinal moving groove (1), an adjusting module (2), a drilling module (3), a flexible transmission structure (4) and a power module (5); wherein: the longitudinal moving groove (1) is provided with a notch along the length extending direction;
the adjusting module (2) comprises a longitudinal sliding block (21), four groove-shaped covers (23), a vertical fixing rod (25), a transverse telescopic pull rod (26), a horizontal rotating connecting ring (24) and a parallelogram connecting rod telescopic structure; the parallelogram connecting rod telescopic structure is formed by connecting four vertical adjusting arms (22) in series end to end;
the four groove-shaped covers (23) are arranged at four hinge points of the parallelogram connecting rod telescopic structure in a one-to-one correspondence manner and are respectively an upper groove-shaped cover, a lower groove-shaped cover, a left groove-shaped cover and a right groove-shaped cover;
two ends of a transverse telescopic pull rod (26) are respectively connected and fixed with the left and right trough-shaped covers;
a longitudinal sliding block (21) is fixed with the top of the upper groove-shaped cover and can be slidably assembled in the groove opening of the longitudinal moving groove (1);
the vertical fixing rod (25) is fixed with the bottom of the lower groove-shaped cover, and the horizontal rotary connecting ring (24) is sleeved on the periphery of the vertical fixing rod (25);
the horizontal rotation connecting ring (24) is connected with the power module (5) sequentially through the drilling module (3) and the flexible transmission structure (4).
2. The steel bridge deck plate fatigue crack perforating device of claim 1, characterized in that: the drilling module (3) comprises an axial pushing structure (31), an outward extending cylinder (32), an L-shaped baffle (33), a drill bit connecting piece (34), a drill bit (35), a positioning structure (36) and a handle (37); wherein: one end of the axial pushing structure (31) is connected with the horizontal rotating connecting ring (24), and the other end is provided with an outward extending cylinder (32) and is connected with the horizontal section of the L-shaped baffle plate (33) through the outward extending cylinder (32); a drill bit connecting piece (34) and a positioning structure (36) are respectively arranged on the vertical section of the L-shaped baffle plate (33); the drill bit (35) is arranged on the outer side of the drill bit connecting piece (34);
a handle (37) mounted on said axial pushing structure (31);
the output end of the flexible transmission structure (4) is arranged on the vertical section of the L-shaped baffle plate (33) and is in linkage connection with the drill bit connecting piece (34).
3. The steel bridge deck plate fatigue crack perforating device of claim 2, characterized in that: one end of the drill bit connecting piece (34) is fixed on the vertical section of the L-shaped baffle plate (33) through a drill bit connecting piece fixing device (341).
4. The steel bridge deck plate fatigue crack perforating device of claim 3, characterized in that: the drill bit connector (34) is positioned and mounted in the drill bit connector fixing device (341) and can be rotatably arranged relative to the drill bit connector fixing device (341).
5. The steel bridge deck fatigue crack perforating device of claim 2, characterized in that: the positioning structure (36) comprises a telescopic groove (361), a telescopic rod (362) and a precision control standard block (363); the telescopic groove (361) is fixedly arranged on the vertical section of the L-shaped blocking piece (33), one end of the telescopic rod (362) is arranged in the telescopic groove (361) in a telescopic mode, and the other end of the telescopic rod (362) extends out of the telescopic groove (361) to be arranged and is connected with the precision control standard block (363).
6. The steel bridge deck plate fatigue crack perforating device of claim 5, characterized in that: the flexible transmission structure (4) comprises a space rotating joint (41), a bearing (42) and a steel wire rope (43); the space rotating joint (41) is provided with a plurality of joints, and each space rotating joint (41) is sleeved on the periphery of the steel wire rope (43);
a bearing (42) is arranged between two adjacent sections of space rotating joints (41), the inner ring of the bearing (42) hoops the steel wire rope (43), and the outer ring of the bearing (42) is respectively connected with the two adjacent sections of space rotating joints (41);
two ends of the steel wire rope (43) are respectively provided with an end bearing, namely an end bearing a and an end bearing b;
inner rings of the end bearings a and b clamp the steel wire rope (43), an outer ring of the end bearing a is connected with a power output end of the power module (5), and an outer ring of the end bearing b is connected with the drill bit connecting piece (34).
7. The steel bridge deck plate fatigue crack perforating device of claim 5, characterized in that: and a pressure sensor is arranged in the axial pushing structure.
8. The steel bridge deck fatigue crack perforating device of claim 7, characterized in that: the overhanging cylinder is marked with scales.
9. A drilling crack arrest method of steel bridge deck plate fatigue crack, realized based on the steel bridge deck plate fatigue crack perforating device of claim 5, characterized by comprising the following steps: (1) crack mark scribing: observing a connecting welding seam of the top plate and the U rib, marking the tip of the crack to be repaired, recording the tip of the crack to be repaired as a tip mark point of the crack to be repaired, then marking a line downwards from the tip of the crack to be repaired to the welding seam of the top plate, taking the length d as the vertical distance from the upper edge of the precision control mark block to the tip mark point of the crack to be repaired, and simultaneously drawing a line segment parallel to the welding seam at the length d;
(2) Line pressing of the positioning module: installing the steel bridge deck fatigue crack perforating device to a top plate, utilizing an adjusting module to enable the upper edge of a precision control standard block to just press a line segment parallel to a welding seam in the step (1), finely adjusting a fastening nut arranged on a transverse telescopic pull rod (26) to enable the precision control standard block to be tightly attached to a U-rib web plate, enabling the drilling direction of the steel bridge deck fatigue crack perforating device to be perpendicular to the U-rib web plate, and meanwhile electrifying to enable the precision control standard block to be adsorbed on the U-rib web plate;
(3) Controlling the drilling depth: estimating the drilling depth by observing scales of the outward extending cylinder at any time, and stopping the drilling module when a pressure value fed back by a pressure sensor arranged in the axial pushing structure is in a preset range;
(4) After the drilling is finished, the position of the longitudinal sliding block is adjusted to punch another tip of the crack to be repaired, or the horizontal rotating connecting ring is rotated to maintain the horizontal same-side crack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166067.9A CN114012351B (en) | 2021-09-30 | 2021-09-30 | Steel bridge deck fatigue crack punching device and drilling crack stopping method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166067.9A CN114012351B (en) | 2021-09-30 | 2021-09-30 | Steel bridge deck fatigue crack punching device and drilling crack stopping method |
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| CN114012351A CN114012351A (en) | 2022-02-08 |
| CN114012351B true CN114012351B (en) | 2023-01-17 |
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| CN116858512A (en) * | 2023-06-13 | 2023-10-10 | 中煤科工开采研究院有限公司 | Test device and test method for roadway support |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007327195A (en) * | 2006-06-06 | 2007-12-20 | Miyaji Construction & Engineering Co Ltd | Drilling equipment |
| CN207606793U (en) * | 2017-10-18 | 2018-07-13 | 河海大学 | The angle controller of stop hole is bored for real bridge |
| CN207900279U (en) * | 2018-01-04 | 2018-09-25 | 河海大学 | Prevent from weakening the drilling equipment of top plate |
| CN109519123A (en) * | 2019-01-09 | 2019-03-26 | 西安增材制造国家研究院有限公司 | A kind of tunnel boring machine people and its construction drill method |
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2021
- 2021-09-30 CN CN202111166067.9A patent/CN114012351B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007327195A (en) * | 2006-06-06 | 2007-12-20 | Miyaji Construction & Engineering Co Ltd | Drilling equipment |
| CN207606793U (en) * | 2017-10-18 | 2018-07-13 | 河海大学 | The angle controller of stop hole is bored for real bridge |
| CN207900279U (en) * | 2018-01-04 | 2018-09-25 | 河海大学 | Prevent from weakening the drilling equipment of top plate |
| CN109519123A (en) * | 2019-01-09 | 2019-03-26 | 西安增材制造国家研究院有限公司 | A kind of tunnel boring machine people and its construction drill method |
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