CN212428871U - Positioning device for steel arch frame connecting plate - Google Patents
Positioning device for steel arch frame connecting plate Download PDFInfo
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- CN212428871U CN212428871U CN202021054401.2U CN202021054401U CN212428871U CN 212428871 U CN212428871 U CN 212428871U CN 202021054401 U CN202021054401 U CN 202021054401U CN 212428871 U CN212428871 U CN 212428871U
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Abstract
The utility model provides a steel bow member connecting plate positioner, the connecting plate of the utility model is provided with connecting holes, the locating plate of the positioner is provided with at least 2 locating holes, the locating holes correspond to the connecting holes on the connecting plate, and the locating holes are provided with locating bolts; the lower part of the positioning plate is provided with 2 sliding chutes, and the 2 sliding chutes move along 2 flanges of the I-shaped steel; one side of the positioning plate is arranged opposite to the connecting plate, right-angled triangle supporting frames are symmetrically and fixedly arranged on the left side and the right side of the other side, the vertical edge of each supporting frame is the connecting plate, the horizontal right-angled edges of the supporting frames move along the flange end faces of the I-shaped steel, and the two ends of each connecting plate are fixedly connected with the supporting frames respectively. The steel arch centering device has the advantages of being reasonable in structural design, simple to operate, capable of guaranteeing the I-steel and the connecting plate to be accurately positioned, improving the connection quality of the I-steel and the connecting plate, and enabling the whole stress of the tunnel primary support steel arch centering to meet design requirements.
Description
Technical Field
The utility model relates to a tunnel preliminary bracing steel bow member especially relates to a steel bow member connecting plate positioner, belongs to the processing frock of tunnel bracing steel bow member.
Background
The installation of the primary tunnel supporting steel arch is a key process of tunnel construction, the steel arch is mainly composed of profile steel, I-shaped steel, steel pipes or steel bars, and the primary tunnel supporting steel arch is limited by a tunnel construction operation surface due to the narrow tunnel operation space and needs to be processed in sections and assembled on site. Hole site errors and splicing errors often occur when the end part of the existing I-steel is welded with a connecting plate, quality problems that the connection of the connecting part is not tight, the bolt hole of the connecting plate is staggered, the bolt is not installed in place and the like occur, so that the whole stress of the primary support steel arch of the tunnel cannot meet the design requirement, the connecting part becomes the weak point of the stress of the primary support steel arch, and the capability of the steel arch for resisting the release and deformation of surrounding rocks is weakened.
SUMMERY OF THE UTILITY MODEL
In order to overcome because of I-steel and connecting plate connection position be connected quality problems such as inseparable, connecting plate bolt hole dislocation, bolt installation not in place, the whole atress of tunnel preliminary bracing steel bow member that leads to can not reach the designing requirement, its connection position becomes the weak point of preliminary bracing steel bow member atress not enough, the utility model provides a steel bow member connecting plate positioner.
The utility model provides a technical scheme that its technical problem adopted is: a steel arch center connecting plate positioning device comprises I-shaped steel and a connecting plate, wherein the connecting plate is provided with connecting holes, a positioning plate of the positioning device is at least provided with 2 positioning holes, the positioning holes correspond to the connecting holes in the connecting plate, and positioning bolts are installed in the positioning holes; the lower part of locating plate is provided with 2 spouts, and 2 spouts move along 2 edges of a wing of I-steel.
One side of the positioning plate is arranged opposite to the connecting plate, right-angled triangle support frames are symmetrically and fixedly arranged on the left side and the right side of the other side of the positioning plate, the vertical edge of each support frame is the positioning plate, the horizontal right-angled edges of the support frames move along the flange end faces of the I-shaped steel, and the two ends of the connecting plate are fixedly connected with the support frames respectively.
Furthermore, a handle of the push-pull positioning device is fixedly arranged on the support frame.
2 ends of the handle are respectively fixedly connected with 2 support frames.
The beneficial effects of the utility model are that, structural design is reasonable, and easy operation guarantees that I-steel and connecting plate location are accurate, improves the quality of being connected of I-steel and connecting plate, and the whole atress of tunnel preliminary bracing steel bow member reaches the designing requirement.
Drawings
Fig. 1 is a schematic structural view of the positioning device for the steel arch connecting plate of the present invention.
Fig. 2 is a schematic perspective view of the positioning device for the steel arch connecting plate of the present invention.
In the figure: 1. the positioning device comprises a positioning plate, 2 positioning holes, 3 positioning bolts, 4 supporting frames, 5 handles, 6 sliding grooves, 7I-shaped steel, 8 connecting plates, 9 connecting holes, 10 positioning devices, 11 flanges and 12 connecting plates.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. However, it should be understood by those skilled in the art that the present invention is not limited to the specific embodiments listed, and should be included within the scope of the present invention as long as the spirit of the present invention is met.
See figure 1. The utility model relates to a steel bow member connecting plate positioner, steel bow member are connected to form through welded fastening by I-steel 7 and connecting plate 8, and connecting plate 8 is provided with connecting hole 9. The positioning device 10 comprises a positioning plate 1, a support frame 4 and a handle 5, wherein the positioning plate 1 is perpendicular to a web plate of the I-shaped steel 7, and the positioning device 10 moves along 2 flanges 11 of the I-shaped steel 7.
At least 2 positioning holes 2 are formed in a positioning plate 1 of the positioning device 10, the positioning holes 2 correspond to connecting holes 9 in a connecting plate 8, and positioning bolts 3 are installed in the positioning holes 2. The lower part of the positioning plate 1 is provided with 2 sliding chutes 6, and the 2 sliding chutes 6 move along 2 flanges 11 of the I-shaped steel 7 (see the attached figure 2).
One side of the positioning plate 1 and the connecting plate 8 are arranged oppositely, right-angled triangle support frames 4 are symmetrically and fixedly arranged on the other side of the positioning plate, the vertical side of each support frame 4 is a positioning plate, and the horizontal right-angled edge of each support frame 4 moves along the end face of the flange 11 of the I-shaped steel 7. The support frame 4 is provided with connecting plate 12, and the both ends of connecting plate 12 respectively with 2 support frame 4 fixed connection. Preferably, the support frame 4 is formed by welding a steel plate and the positioning plate 1, plays a role in stably supporting the positioning plate 1, and ensures the positioning quality of the I-steel 7 and the connecting plate 8.
The supporting frames 4 are fixedly provided with handles 5 for pushing and pulling the positioning devices 10, preferably, the handles 5 are rod-shaped, 2 ends of the handles 5 are fixedly connected with the 2 supporting frames 4 respectively, and the pushing and pulling handles 5 enable the positioning devices 10 to move along the flange 11 of the I-shaped steel 7.
By applying the positioning device for the steel arch connecting plate of the utility model,
firstly, carrying out cold bending on the I-steel 7 according to a designed radius, cutting the I-steel 7 by using a gas cutting or plasma cutting machine, ensuring that the section of the I-steel 7 is neat and flat in the cutting process, and placing the cut I-steel 7 on a processing rack (the processing rack is used for supporting the I-steel and is convenient for welding operation, and the processing rack is not shown in the attached drawing).
Then, selecting a connecting plate 8 with a corresponding size, and placing a positioning device 10 on a flange 11 of the I-beam 7, wherein a positioning plate 1 of the positioning device 10 is positioned at one end of the I-beam 7; the I-shaped steel 7 and the connecting plate 8 are fixed in position by connecting 2 positioning bolts 3 on the positioning plate 1 with connecting holes 9 of the connecting plate 8;
welding the I-shaped steel 7 and the connecting plate 8 to complete the fixed connection of the I-shaped steel 7 and the connecting plate 8; and removing the positioning device from the steel arch.
The positioning device 10 can ensure that the connecting plate 8 and the I-steel 7 are accurately positioned, and the carbon dioxide arc welding is adopted to ensure the smoothness of the connecting plate 8, effectively improve the welding speed and the welding quality of the steel arch, ensure the installation quality of the steel arch, ensure the compactness and compactness of later-stage arch installation, effectively improve the overall quality of primary support, reduce the cost of tunnel construction and improve the efficiency.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims.
Claims (4)
1. The utility model provides a steel bow member connecting plate positioner, includes I-steel, connecting plate, and the connecting plate is provided with connecting hole, characterized by: at least 2 positioning holes are formed in a positioning plate of the positioning device, correspond to the connecting holes in the connecting plate, and are provided with positioning bolts; the lower part of locating plate is provided with 2 spouts, and 2 spouts move along 2 edges of a wing of I-steel.
2. The steel arch connecting plate positioning device as set forth in claim 1, wherein: one side of the positioning plate is arranged opposite to the connecting plate, right-angled triangle support frames are symmetrically and fixedly arranged on the left side and the right side of the other side of the positioning plate, the vertical edge of each support frame is the positioning plate, the horizontal right-angled edges of the support frames move along the flange end faces of the I-shaped steel, and the two ends of the connecting plate are fixedly connected with the support frames respectively.
3. The steel arch connecting plate positioning device as set forth in claim 2, wherein: and a handle of the push-pull positioning device is fixedly arranged on the support frame.
4. The steel arch connecting plate positioning device as set forth in claim 3, wherein: 2 ends of the handle are respectively fixedly connected with 2 support frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054401.2U CN212428871U (en) | 2020-06-10 | 2020-06-10 | Positioning device for steel arch frame connecting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054401.2U CN212428871U (en) | 2020-06-10 | 2020-06-10 | Positioning device for steel arch frame connecting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212428871U true CN212428871U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021054401.2U Active CN212428871U (en) | 2020-06-10 | 2020-06-10 | Positioning device for steel arch frame connecting plate |
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| CN (1) | CN212428871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901077A (en) * | 2021-05-06 | 2021-06-04 | 中铁九局集团第七工程有限公司 | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling |
| CN113914891A (en) * | 2021-09-15 | 2022-01-11 | 华亭煤业集团有限责任公司 | Pre-empty soft rock roadway supporting structure and construction method thereof |
-
2020
- 2020-06-10 CN CN202021054401.2U patent/CN212428871U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901077A (en) * | 2021-05-06 | 2021-06-04 | 中铁九局集团第七工程有限公司 | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling |
| CN112901077B (en) * | 2021-05-06 | 2021-07-06 | 中铁九局集团第七工程有限公司 | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling |
| CN113914891A (en) * | 2021-09-15 | 2022-01-11 | 华亭煤业集团有限责任公司 | Pre-empty soft rock roadway supporting structure and construction method thereof |
| CN113914891B (en) * | 2021-09-15 | 2022-08-05 | 华亭煤业集团有限责任公司 | Pre-empty soft rock roadway supporting structure and construction method thereof |
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