CN211472177U - Single tensioning device of steel strand inhaul cable system with suspension locking structure - Google Patents
Single tensioning device of steel strand inhaul cable system with suspension locking structure Download PDFInfo
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- CN211472177U CN211472177U CN201921758877.1U CN201921758877U CN211472177U CN 211472177 U CN211472177 U CN 211472177U CN 201921758877 U CN201921758877 U CN 201921758877U CN 211472177 U CN211472177 U CN 211472177U
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Abstract
A single tensioning device of a steel strand inhaul cable system with a suspension locking structure comprises a tensioning jack, a supporting cylinder and the suspension locking structure, the suspension locking structure comprises a handle, a nut, a single-hole anchor I and a limiting piece, the supporting cylinder is aligned with the nut contact end surface of the single-hole anchor I of the suspension locking device in the installation state, the piston of the tensioning jack is aligned with the contact end surface of the nut of the suspension locking structure, the anchor plate of the single-hole anchor I is provided with 3 clamping pieces, small holes are drilled between the clamping pieces, the spring is arranged in the small hole between the clamping pieces, the limiting piece is arranged at the large end of the clamping piece, the nut is arranged on the limiting piece, the handle is connected with the nut through the fork lug, the handle drives the nut to compress the limiting piece through rotation to extrude the end face of the clamping piece, and the steel strand is clamped to temporarily anchor the steel strand. The handle drives the nut to rotate at an angle alpha of 45-160 degrees. The tensioning device has small volume, light weight and simple and convenient construction.
Description
Technical Field
The utility model relates to a tensioning equipment of prestressing force steel strand wires cable system, a single tensioning equipment of steel strand wires cable system with suspension locking structure specifically says so.
Background
The steel strand inhaul cable system is widely applied to various bridges and buildings, is a life line of the bridge, and has larger and larger bridge span along with continuous progress of technology, so that higher requirements are provided for the installation of the steel strand inhaul cable system. The parallel steel strand inhaul cable system adopts a multiple anticorrosion system, the effect is good, the key for controlling the steel strand stretching operation is the installation of the steel strand inhaul cable system, and the single stretching of the steel strand is the important factor in the stretching operation.
At present, single tensioning brace (comprising 4 or 6 upright posts and 1 honeycomb plate corresponding to anchor hole positions), YDCS160-150 jack, sensor and single-hole anchor are adopted for single tensioning construction of steel strand stayed cables of a cable-stayed bridge, and the single tensioning construction is carried out on the steel strands, wherein the existing tensioning device is shown in figure 8, and the device and the tensioning method have the following defects:
1. the single stretching brace 12 is large, heavy, large in occupied space, not easy to install and disassemble, limited in operation under a plurality of working conditions and insufficient in operation space;
2. the specifications of the stretching brace honeycomb plate 14 need to be manufactured according to the anchorage device, and the stretching brace honeycomb plate has more manufacturing specifications and high cost.
Disclosure of Invention
The utility model aims to provide a: the single tensioning device of the steel strand inhaul cable system with the suspension locking structure is free of tensioning supporting feet and a honeycomb plate, small in size, light in weight, simple and convenient to construct, capable of adapting to smaller operation space, high in working efficiency and better in safety, and greatly reduces the manufacturing cost of the single tensioning device of the steel strand inhaul cable system.
The technical scheme for solving the problems is as follows: the utility model provides a single tensioning equipment of steel strand wires cable system with suspension locking structure, includes bearing structure and stretch-draw jack, its characterized in that: the bearing structure including supporting a section of thick bamboo and suspension locking structure, suspension locking structure includes handle, nut, haplopore anchor I and spacing piece, under the installation condition, the centering of nut contact terminal surface of a support section of thick bamboo and suspension locking device's haplopore anchor I, it is tight to press under the tension state, the piston of tensioning jack and the centering of suspension locking structure's nut contact terminal surface, it is tight to press under the tension state, 3 formula clamping pieces have been laid in the anchor slab of haplopore anchor I, it has the aperture to bore between the clamping piece, the spring is laid in the aperture between the clamping piece, spacing piece is installed at the clamping piece main aspects, the nut is installed on spacing piece, the handle is connected with the nut through the fork ear, the handle drives the nut and compresses tightly spacing piece through the rotation and makes it extrude clamping piece terminal surface, it carries out interim anchor to press from both sides.
The further technical scheme is as follows: the handle drives the nut to rotate at an angle alpha of 45-160 degrees.
The supporting cylinder is a mature product hydraulic jacking jack.
Owing to take above-mentioned structure, the utility model discloses a single tensioning equipment of steel strand wires cable system with suspension locking structure "has following beneficial effect:
the utility model provides a single tensioning equipment commonality of steel strand wires cable system with suspension locking structure is good, practices thrift a large amount of frock materials:
1. the utility model cancels the honeycomb plate in the original stretching process (the honeycomb plate in the original stretching brace needs to be configured according to the specification of the inhaul cable system, and has more specifications and large quantity); the utility model discloses a small, the single tensioning equipment of steel strand wires cable system that a suspension locking structure that the commonality is strong constitutes with YDCS160-150 type jack is supporting carries out the single stretch-draw operation's of steel strand wires construction technology, has saved a large amount of frock materials.
2. The required steel strand wires stretch-draw working length lower limit of former stretch-draw technology is 1.5m, adopts the utility model relates to a single tensioning equipment of steel strand wires cable system with suspension locking structure can reduce the stretch-draw working lower limit to 0.92m, and the stretch-draw working length of every steel strand wires can practice thrift 0.58m, for example: a55-hole inhaul cable system can save 35.12kg of steel strand materials.
Two, ann tears the convenience open, need not hoisting machinery supplementary, the construction is simple, adaptable littleer operating space, work efficiency is high, and the security is better:
1. the tensioning device has the advantages that the supporting cylinder, the suspension locking structure and the YDCS160-150 type jack are small in size, the installation and the disassembly are convenient, the assistance of hoisting machinery is not needed, the construction is simple, the tensioning device can adapt to smaller operation space, the working efficiency is high, the safety is better, and the problems that the tensioning device of the original tensioning process is large in size, heavy in mass, limited in operation space, low in working efficiency and poor in safety because the tensioning device consists of honeycomb plates (multiple in specification), stand columns and a single tensioning jack are solved.
And thirdly, a suspension locking structure is adopted to temporarily lock the steel strand in the stretching operation, the working section of the steel strand inhaul cable is not damaged, the corrosion resistance and the durability of the steel strand are ensured, and the middle steel strand is more convenient to stretch or adjust.
The technical features of the single cable tensioning device with a suspension locking structure of the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic overall structure diagram of a single tensioning device of a steel strand inhaul cable system with a suspension locking structure;
FIG. 2 is a schematic diagram of a suspension locking structure of a single tensioning device of a steel strand inhaul cable system with the suspension locking structure;
FIG. 3 is a schematic view of the handle rotation angle α range of the suspension locking structure;
fig. 4-7 are schematic views of the installation and use states of a single tensioning device of a steel strand inhaul cable system with a suspension locking structure of the present invention;
fig. 4 is a front view, fig. 5 is a sectional view B-B of fig. 4,
FIG. 6 is a top view C-C of FIG. 4, and FIG. 7 is a cross-sectional view C-C of FIG. 4;
fig. 8 is a schematic structural diagram of a single tensioning device of a conventional steel strand cable system.
In the figure:
1-a working anchor plate, 2-a supporting cylinder and 3-a suspension locking structure,
31-handle, 32-nut; 33-a limiting piece, 34-a spring, 35-a single-hole anchor I, 351-a single-hole anchor I anchor plate, 352-a single-hole anchor I clamping piece, 36-a fork lug and 37-a bolt;
4-tensioning a jack;
5-single hole anchor II, 6-steel strand, 7-oil nozzle I, 8-oil nozzle II, 9-working clamping piece, 10-sensor, 11-single hole anchor III, 12-single tensioning support, 13-continuous tensioning temporary anchor, 14-honeycomb plate and 15-display instrument; alpha-the angle at which the handle drives the nut to rotate.
Detailed Description
A single tensioning equipment of steel strand wires cable system with suspension locking structure:
as shown in fig. 1, the single tensioning device of the steel strand inhaul cable system with the suspension locking structure comprises a supporting cylinder 2, the suspension locking structure 3 and a tensioning jack 4, wherein the suspension locking structure 3 comprises a handle 31, a nut 32, a single-hole anchor I35 and a limiting piece 33 (see fig. 2 and fig. 3), in an installation state, the supporting cylinder 2 is in threaded connection with an anchor plate 351 of the single-hole anchor I35 of the suspension locking structure 3, a piston of the tensioning jack 4 is aligned with a contact end face of the nut 32 of the suspension locking structure and is tightly pressed in a tensioning state, a 3-piece type clamping piece 352 is arranged in the anchor plate 351 of the single-hole anchor I35, a small hole is drilled between the clamping pieces, a spring 34 is arranged in the small hole between the clamping pieces, the limiting piece 33 is arranged at the large end of the clamping piece 352, the nut 32 is arranged on the limiting piece 33, the handle 31 is connected with the nut 32 through a fork lug 36, the handle 31 drives the nut 32 to press, the clamping piece 352 moves towards the taper hole of the anchor plate 351 to clamp the steel strand 6 for temporary anchoring.
In a state that the handle 31 is loosened, the clamping piece 352 is under the action of the spring 34, the limiting piece 33 is in a loosened state, and the steel strand can freely move in the clamping piece without limitation and scratching;
in the suspension locking structure 3, the handle 31 drives the nut 32 to rotate at an angle α of 45 to 160 degrees (see fig. 3).
The supporting cylinder is a mature product hydraulic jacking jack.
The tensioning jack 4 is an YDCS160-150 type feed-through tensioning jack.
Claims (3)
1. The utility model provides a single tensioning equipment of steel strand wires cable system with suspension locking structure, includes bearing structure and stretch-draw jack, its characterized in that: the supporting structure comprises a supporting cylinder (2) and a suspension locking structure (3), the suspension locking structure (3) comprises a handle (31), a nut (32), a single-hole anchor I (35) and a limiting piece (33), in the installation state, the supporting cylinder (2) is aligned with the nut contact end face of the single-hole anchor I (35) of the suspension locking device and tightly attached under the tension state, a piston of a tensioning jack (4) is aligned with the nut contact end face of the suspension locking structure (3) and tightly attached under the tension state, a 3-piece type clamping piece (352) is placed in an anchor plate (351) of the single-hole anchor I (35), small holes are drilled between the clamping pieces, a spring (34) is placed in the small holes between the clamping pieces, the limiting piece (33) is installed at the large end of the clamping piece (352), the nut (32) is installed on the limiting piece (33), the handle (31) is connected with the nut (32) through a fork lug (36), the handle (31) drives the nut (32) to compress the limiting sheet (33) through rotation to extrude the end face of the clamping sheet (352), and the steel strand is clamped to temporarily anchor the steel strand.
2. The single tensioning device of a steel strand inhaul cable system with the suspension locking structure as claimed in claim 1, wherein: the handle (31) drives the nut (32) to rotate by an angle alpha of 45-160 degrees.
3. The single tensioning device of a steel strand inhaul cable system with the suspension locking structure as claimed in claim 1, wherein: the supporting cylinder (2) is a hydraulic jacking jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921758877.1U CN211472177U (en) | 2019-10-18 | 2019-10-18 | Single tensioning device of steel strand inhaul cable system with suspension locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921758877.1U CN211472177U (en) | 2019-10-18 | 2019-10-18 | Single tensioning device of steel strand inhaul cable system with suspension locking structure |
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| Publication Number | Publication Date |
|---|---|
| CN211472177U true CN211472177U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921758877.1U Active CN211472177U (en) | 2019-10-18 | 2019-10-18 | Single tensioning device of steel strand inhaul cable system with suspension locking structure |
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| Country | Link |
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| CN (1) | CN211472177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450435A (en) * | 2022-08-10 | 2022-12-09 | 中交一公局集团有限公司 | Single equal-prestress tensioning device |
-
2019
- 2019-10-18 CN CN201921758877.1U patent/CN211472177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450435A (en) * | 2022-08-10 | 2022-12-09 | 中交一公局集团有限公司 | Single equal-prestress tensioning device |
| CN115450435B (en) * | 2022-08-10 | 2023-10-03 | 中交一公局集团有限公司 | Single equal prestress tensioning equipment |
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