CN211340196U - Circular shaping tool for steel wire strands of main cable of suspension bridge - Google Patents
Circular shaping tool for steel wire strands of main cable of suspension bridge Download PDFInfo
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- CN211340196U CN211340196U CN202020634088.3U CN202020634088U CN211340196U CN 211340196 U CN211340196 U CN 211340196U CN 202020634088 U CN202020634088 U CN 202020634088U CN 211340196 U CN211340196 U CN 211340196U
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Abstract
The utility model relates to a circular plastic instrument of suspension bridge main push-towing rope steel wire strand includes at least: ejector pin, tensioning anchor block, strand shaping piece, wire rope subassembly, the ejector pin includes handle bar and external screw thread pole, and handle bar and external screw thread pole form T shape structure, and the handle bar is the horizontal pole steel pipe, and the welding of external screw thread pole is at horizontal pole steel pipe middle part, and external screw thread pole passes the tensioning anchor block and is connected with the internal screw thread pole of strand shaping piece, and the wire rope subassembly includes: the steel wire rope of the steel wire rope component bypasses a strand steel wire and penetrates through a strand forming block and a U-shaped groove of a tensioning anchor block, the steel sleeve is anchored and hung on the U-shaped groove of the tensioning anchor block, and bolts and nuts are respectively arranged at two ends of the tensioning anchor block and the strand forming block and used for preventing the problem that the steel wire rope is out of groove in the strand shaping process, the stroke of the steel wire rope component is limited, so that the strand forming block and the tensioning anchor block are in counter-stroke pull structure, and the steel wire rope strand is shaped.
Description
Technical Field
The utility model belongs to the technical field of suspension bridge main push-towing rope erects construction, a circular plastic instrument of suspension bridge main push-towing rope strand is related to, especially to the circular plastic instrument of strand of the suspension bridge main push-towing rope of AS method (air spinning method) construction.
Background
The erection construction method of the main cable of the suspension bridge comprises a prefabricated parallel steel wire strand method (PPWS method) and an air spinning method (AS method), wherein the PPWS method is a method for prefabricating parallel steel wire bundles into strands for erection construction, the AS method is a method for independently erecting steel wires, and after the steel wires are erected to a certain number, a strand shaper is adopted to shape the erected steel wires into round strands. The PPWS method is to prefabricate the shaping with the strand in the mill (therefore PPWS method need not to carry out the plastic construction), and the AS method is that after the job site steel wire independently erects a certain amount, adopts main push-towing rope steel wire strand plastic instrument to become the circular strand that satisfies the porosity requirement with it.
The main cable constructed by the conventional PPWS method has no problem of shaping small-diameter strands. After the main cable constructed by the PPWS method, the main cable is integrally subjected to strand tightening and shaping, and is operated by large-scale mechanical equipment, so that the main cable is not suitable for shaping operation of small diameters of single strands.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circular shaping tool for a steel wire strand of a main cable of a suspension bridge, which can meet the shaping requirement of the main cable strand during the construction of the main cable by an AS method; has the characteristics of simple structural design, convenient processing and manufacturing, and the like.
The utility model aims at realizing like this, a circular plastic instrument of suspension bridge main push-towing rope wire strand includes at least: ejector pin, tensioning anchor block, strand shaping piece, wire rope subassembly, the ejector pin includes handle bar and external screw thread pole, and handle bar and external screw thread pole form T shape structure, and the handle bar is the horizontal pole steel pipe, and the welding of external screw thread pole is at horizontal pole steel pipe middle part, and external screw thread pole passes the tensioning anchor block and is connected with the internal screw thread pole of strand shaping piece, and the wire rope subassembly includes: the steel wire rope of the steel wire rope component bypasses a strand steel wire and penetrates through a strand forming block and a U-shaped groove of a tensioning anchor block, the steel sleeve is anchored and hung on the U-shaped groove of the tensioning anchor block, and bolts and nuts are respectively arranged at two ends of the tensioning anchor block and the strand forming block and used for preventing the problem that the steel wire rope is out of groove in the strand shaping process, the stroke of the steel wire rope component is limited, so that the strand forming block and the tensioning anchor block are in counter-stroke pull structure, and the steel wire rope strand shaping effect is realized.
The tensioning anchor block comprises side plates, a first bottom plate, a threaded pipe with internal threads, a stress application pipe and a steel wire rope limiting nut, the left side plate and the right side plate are welded with the first bottom plate to form a concave structure, the threaded pipe with the internal threads is welded at the lower end of the first bottom plate, a through hole is formed in the position, corresponding to the first bottom plate, of the threaded pipe with the internal threads, and an external threaded rod of the ejector rod penetrates through the through hole and the threaded pipe with the internal threads to form a pair of thread pairs.
And U-shaped grooves and steel wire rope limiting nuts welded at the top end of the first bottom plate are arranged at the two ends of the first bottom plate.
And the side surface of the side plate is welded with a stress application pipe.
The strand forming block comprises: the cable strand shaping plate is of an arc-shaped structure, the diameter of the arc is the same as that of a cable strand to be shaped, and the cable strand shaping plate is used for shaping the steel wire cable strand into a circle; the cable strand forming plates are divided into a left block and a right block.
The second bottom plate and the left and right cable strand shaping plates are welded into a concave shape, a steel pipe is welded on the second bottom plate, the steel pipe is arranged on the second bottom plate, the cable strand shaping plates are arranged below the second bottom plate, and the steel pipe is a tightening sleeve of an external thread rod of the ejector rod.
And U-shaped grooves and lower steel wire rope limiting nuts welded at the top end of the second bottom plate are arranged at the two ends of the second bottom plate and are used for limiting the steel wire rope assembly.
The utility model has the advantages that:
(1) the structure design is simple, the processing and the manufacturing are convenient, and the shaping requirement of the main cable strand during the construction of the main cable by the AS method is met;
(2) the stress application steel pipe is arranged and used for increasing the tightening force during shaping construction and ensuring that the shaping meets the porosity requirement;
(3) the shaping operation of different main cable strand diameters can be adapted by independently replacing the strand forming block.
Drawings
The present invention will be further explained with reference to the following embodiments and accompanying drawings:
fig. 1 is a structural view of a circular shaping tool for a main cable wire strand of a suspension bridge according to an embodiment of the present invention;
FIG. 2 is a view showing the construction of a jack;
FIG. 3 is a view of a tension anchor block;
FIG. 4 is a strand building block diagram;
FIG. 5 is a structural view of a wire rope assembly;
fig. 6 is a schematic diagram of the practical application process of the circular shaping tool for the main cable wire strand of the suspension bridge.
In the figure, 1, a mandril; 101. a handle bar; 102. a threaded rod; 2. tensioning the anchor block; 201. a side plate; 202. a first base plate; 203. a threaded tube with internal threads; 204. a force application pipe; 205. a wire rope limit nut; 3. a strand forming block; 301. a second base plate; 302. a strand shaping plate; 303. a lower wire rope limit nut; 304. a steel pipe; 4. a wire rope assembly; 401. a wire rope; 402. A steel sleeve; 5. a bolt and a nut; 6. a round strand.
Detailed Description
As shown in fig. 1, 2 and 5, a round shaping tool for a main cable strand of a suspension bridge at least comprises: ejector pin 1, tensioning anchor block 2, strand shaping piece 3, wire rope subassembly 4, ejector pin 1 includes handle pole 101 and external screw thread pole 102, and handle pole 101 and external screw thread pole 102 form T shape structure, and handle pole 101 is the horizontal pole steel pipe, and the welding of external screw thread pole 102 is at horizontal pole steel pipe middle part, and external screw thread pole 102 passes tensioning anchor block 2 and is connected with the internal screw thread pole of strand shaping piece 3, and wire rope subassembly 4 includes: the steel wire rope 401 and the steel sleeve 402, the steel sleeve 402 is anchored with the end of the steel wire rope 401, a U-shaped structure is integrally formed, the steel wire rope 401 of the steel wire rope assembly 4 bypasses a strand steel wire and penetrates through U-shaped grooves of the strand forming block 3 and the tensioning anchor block 2, the steel sleeve 402 is anchored and hung on the U-shaped groove of the tensioning anchor block 2, bolts and nuts 5 are respectively arranged at two ends of the tensioning anchor block 2 and the strand forming block 3 and are used for preventing the problem of groove separation of the steel wire rope in the strand shaping process, the stroke of the steel wire rope assembly 4 is limited, the strand forming block 3 and the tensioning anchor block 2 are in counter-stroke counter-force pull structure, and the shaping effect on the steel wire strand is achieved.
And bolts and nuts 5 are arranged at the ends of the tensioning anchor block 2 and the strand forming block 3 and are used for preventing the steel wire rope from falling off the groove in the strand shaping process.
As shown in fig. 3, the tension anchor block 2 includes a side plate 201, a first bottom plate 202, a threaded pipe 203 with internal threads, a stress application pipe 204, and a wire rope stop nut 205, wherein the left and right side plates 201 and the first bottom plate 202 are welded into a concave structure, the threaded pipe 203 with internal threads is welded to the lower end of the first bottom plate 202, a through hole is provided corresponding to the first bottom plate of the threaded pipe 203 with internal threads, and the external threaded rod 102 of the top rod 1 passes through the through hole and the threaded pipe 203 with internal threads to form a pair of thread pairs.
The two ends of the bottom plate 202 are provided with a U-shaped groove 206 and a steel wire rope limiting nut 205 welded at the top end of the bottom plate, and the U-shaped groove 206 and the steel wire rope limiting nut 205 are used for limiting the steel wire rope component 4.
The side of the side plate 201 is welded with a stress tube 204, when the tightening force of the ejector rod 1 is insufficient, the stress rod 204 can be penetrated in to increase the tightening torque, so that the strand shaper can reach the standard porosity.
As shown in fig. 4, the strand forming block 3 includes: the cable comprises a second bottom plate 301, a cable strand shaping plate 302, a lower steel wire rope limiting nut 303 and a steel pipe 304, wherein the cable strand shaping plate 302 is of an arc-shaped structure, the diameter of the arc is the same as that of a cable strand to be shaped, and the cable strand shaping plate is used for shaping the steel wire cable strand into a circle; the strand shaping plates 302 are left and right. The second bottom plate 301 and the left and right strand shaping plates 302 are welded into a concave shape, a steel pipe 304 is welded on the second bottom plate 301, the steel pipe 304 is arranged on the second bottom plate 301, the strand shaping plates 302 are arranged below the second bottom plate 301, and the steel pipe 304 is a tightening sleeve of the external thread rod 102 of the ejector rod 1. And U-shaped grooves and lower steel wire rope limiting nuts 303 welded at the top ends of the second bottom plates are arranged at the two ends of the second bottom plate 301, and the U-shaped grooves and the lower steel wire rope limiting nuts 303 are used for limiting the steel wire rope component 4.
The arc structure of the strand forming plate of the strand forming block 3 can be processed according to different strand diameters so as to adapt to the shaping operation of different strand diameters.
As shown in fig. 5, a steel sleeve 402 is anchored at the end of a steel wire 401 of the steel wire assembly 4, and the steel wire assembly and the tensioning anchor block 2 are in a stroke counter-force counter-pulling structure, so that the steel wire strand is shaped.
As shown in fig. 6, when the main cable of the suspension bridge is constructed by the spinning method, a single cable strand is erected back and forth by steel wires, the cable strand is loose after being erected, and in order to realize accurate control of the sag of the main cable, the loose cable strand steel wires need to be integrated into a round cable strand 6 meeting the requirements. The circular shaping tool for the steel wire strands of the main cable of the suspension bridge is practically used as shown in fig. 6.
The ejector rod 1 is pushed against the main structure of the steel pipe inner stroke cable strand former of the cable strand forming block 3 after penetrating through a threaded pipe of the tensioning anchor block 2, a steel wire rope 401 of the steel wire rope assembly 4 bypasses a cable strand steel wire and penetrates through U-shaped grooves of the cable strand forming block 3 and the tensioning anchor block 2, a steel sleeve anchor is hung on the U-shaped groove of the tensioning anchor block 2, and the stroke of the steel wire rope assembly 4 is limited by a bolt and a nut which are arranged on the tensioning anchor block 2 and the cable strand forming block 3.
The circular plastic shape of the wire rope steel wire of wire rope component 4's wire rope 401 and the circular arc groove stroke of strand shaping piece 3, the horizontal pole steel pipe of rotatory ejector pin 1, under the screw side effect of the screwed pipe of threaded rod and tensioning anchor block 2, outer screw thread pole 102 top advance strand shaping piece 3, wire rope 401 and the curb plate circular arc groove of strand shaping piece 3 carry out circular plastic fastening to main cable strand gradually, carry out the ligature after the circular strand that satisfies the porosity requirement is become to the plastic.
In the process of erecting the main cable of the AS method, the shaping of the cable strand is an important step. And shaping the cable strand into a round shape by using a cable strand shaping tool so as to adjust the sag of the cable strand to reach the main cable strand sag required by the design. Only by adjusting each strand into the main cable sag consistent with the design, the line type of the main cable can be kept consistent with the design line type after the final main cable construction is finished, and the design requirement is met. Therefore, the strand shaping is a very necessary and very important step in the AS construction.
Claims (7)
1. The utility model provides a circular plastic instrument of suspension bridge main push-towing rope strand, characterized by: at least comprises the following steps: ejector pin (1), tensioning anchor block (2), strand shaping piece (3), wire rope subassembly (4), ejector pin (1) is including handle pole (101) and external screw thread pole (102), handle pole (101) and external screw thread pole (102) form T shape structure, handle pole (101) are the horizontal pole steel pipe, external screw thread pole (102) welding is at horizontal pole steel pipe middle part, external screw thread pole (102) pass tensioning anchor block (2) and the internal screw thread pole of strand shaping piece (3) is connected, wire rope subassembly (4) include: wire rope (401) and steel sleeve (402), steel sleeve (402) and wire rope (401) end anchor, form U type structure wholly, wire rope (401) of wire rope subassembly (4) are walked around the strand steel wire and are passed the U-shaped groove of strand shaping piece (3) and tensioning anchor block (2), steel sleeve (402) anchor is hung on the U-shaped groove of tensioning anchor block (2), there are bolt and nut (5) respectively at tensioning anchor block (2) and strand shaping piece (3) both ends end, be used for preventing that wire rope from taking off the groove problem in the shaping process of strand, it is spacing to wire rope subassembly (4) stroke, make strand shaping piece (3) and tensioning anchor block (2) stroke counter-force draw structure, realize the plastic effect to the wire rope strand.
2. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 1, wherein: the tensioning anchor block (2) comprises side plates (201), a first bottom plate (202), a threaded pipe (203) with internal threads, a stress application pipe (204) and a steel wire rope limiting nut (205), wherein the left side plate (201) and the right side plate (201) are welded with the first bottom plate (202) to form a concave structure, the lower end of the first bottom plate (202) is welded with the threaded pipe (203) with the internal threads, a through hole is formed in the position, corresponding to the first bottom plate of the threaded pipe (203) with the internal threads, of the first bottom plate, and an external threaded rod (102) of the ejector rod (1) penetrates through the through hole and the threaded pipe (203) with the internal threads to form a.
3. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 2, wherein: two ends of the first bottom plate (202) are provided with a U-shaped groove (206) and a steel wire rope limiting nut (205) welded at the top end of the first bottom plate.
4. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 2, wherein: the side surface of the side plate (201) is welded with a stress application pipe (204).
5. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 1, wherein: the strand forming block (3) comprises: the steel wire rope shaping device comprises a second bottom plate (301), a rope strand shaping plate (302), a lower steel wire rope limiting nut (303) and a steel pipe (304), wherein the rope strand shaping plate (302) is of an arc-shaped structure, the diameter of the arc is the same as that of a rope strand to be shaped, and the rope strand shaping plate is used for shaping the steel wire rope strand into a circle; the cable strand shaping plates (302) are divided into a left plate and a right plate.
6. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 5, wherein: the second bottom plate (301) and the left and right strand shaping plates (302) are welded into a concave shape, a steel pipe (304) is welded on the second bottom plate (301), the steel pipe (304) is arranged on the second bottom plate (301), the strand shaping plates (302) are arranged below the second bottom plate (301), and the steel pipe (304) is a jacking sleeve of an external threaded rod (102) of the ejector rod (1).
7. The round shaping tool for the steel wire strands of the main cable of the suspension bridge as claimed in claim 5, wherein: and U-shaped grooves and lower steel wire rope limiting nuts (303) welded at the top end of the second bottom plate are arranged at the two ends of the second bottom plate (301), and the U-shaped grooves and the lower steel wire rope limiting nuts are used for limiting the steel wire rope component (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020634088.3U CN211340196U (en) | 2020-04-24 | 2020-04-24 | Circular shaping tool for steel wire strands of main cable of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020634088.3U CN211340196U (en) | 2020-04-24 | 2020-04-24 | Circular shaping tool for steel wire strands of main cable of suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211340196U true CN211340196U (en) | 2020-08-25 |
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ID=72096075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020634088.3U Active CN211340196U (en) | 2020-04-24 | 2020-04-24 | Circular shaping tool for steel wire strands of main cable of suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211340196U (en) |
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2020
- 2020-04-24 CN CN202020634088.3U patent/CN211340196U/en active Active
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