Traction device for steel strand blanking

Abstract

The utility model discloses a traction device for steel strand blanking, which comprises a winch and a traction connecting plate, a steel wire rope of the winch is connected with one end of the traction connecting plate, the other end of the traction connecting plate is transversely provided with a plurality of shackle II connecting holes, each shackle II connecting hole is provided with a shackle II, and the shackle II is connected with the traction connecting plate. And the shackle II is connected with one end of the steel strand through a bidirectional rotating lifting ring and a connector. The traction device for steel strand blanking can effectively eliminate rotation torque formed in the steel strand traction process, traction is smooth, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand cutting devices, in particular to a traction device for steel strand cutting. Background Art

[0002] During the construction of the superstructure of a high-speed continuous rigid frame bridge, each time a cantilever casting segment of the cast-in-place box girder of the superstructure is completed, the longitudinal prestressed steel strands of the corresponding segment need to be tensioned. As the cantilever casting length on both sides of the "T" structure gradually increases, the length of the steel strands of the prestressed steel strands in the longitudinal bridge direction also increases accordingly. According to the previous method of cutting out steel strands, after marking the length of the steel strands to be cut out on an open space, the workers will pull the steel strands to the corresponding marked length one by one, and then cut the steel strands, and repeat this process until the designed number of strands in a bundle is met. Then, as the cantilever length on both sides of the continuous rigid frame bridge increases, the number of single bundles of longitudinal bridge strands will be more when the bridge is designed, and the workers will take more time to cut the steel strands, and the labor intensity will also be greater.

[0003] To improve work efficiency and reduce labor intensity, a traction device for steel strand cutting is needed. Public literature has also reported on auxiliary traction devices for steel strand cutting. For example, Chinese Patent: Steel Strand Cutting Assisted Traction Device, Application Number: 201220685270.7, Application Date: December 12, 2012. Abstract: A steel strand cutting auxiliary traction device is characterized by a steel plate with threading holes. Bundled steel strands are passed through the threading holes in the steel plate. The ends of the steel strands are clamped by a pair of clips. The outer walls of the clips are tapered. A bearing is mounted on the outer periphery of the clips. A tapered sleeve is mounted on the outer periphery of the bearing. The tapered top surface of the tapered sleeve abuts against the flat surface of the steel plate. A steel hoop is welded to the steel plate, and a winch pulls the steel hoop via a steel wire rope. This utility model makes the steel strand cutting process efficient and convenient, saves a lot of manpower and time, and improves project progress.

[0004] Application research has found that the steel strand unloading auxiliary traction device disclosed in the above-mentioned document easily causes the steel strand to twist during the traction process, which prevents smooth traction and requires the steel strand to be directly connected to the steel plate, resulting in low connection efficiency. Summary of the Invention

[0005] The purpose of the utility model is to address the problems existing in the prior art and provide a traction device for steel strand unloading, which can effectively eliminate the rotational torque generated during the traction of the steel strand, and has smooth traction and high work efficiency.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A traction device for unloading steel strands includes a winch and a traction connecting plate. The steel wire rope of the winch is connected to one end of the traction connecting plate. The other end of the traction connecting plate is laterally provided with multiple shackle second connection holes. Each shackle second connection hole is installed with a shackle second. The shackle second is connected to one end of the steel strand through a bidirectional rotating lifting ring and a connector.

[0008] Further preferably, the bottom of the traction connecting plate is provided with a running wheel. The setting of the running wheel enables the traction connecting plate to move along the ground when being pulled by the winch, thereby ensuring a stable traction of the steel strand.

[0009] Further preferably, the steel wire rope of the hoist is connected to the traction connecting plate through a shackle 1, a shackle 1 connecting hole is provided on the traction connecting plate, and the shackle 1 is installed in the shackle 1 connecting hole.

[0010] Further preferred: the connector includes a steel wire clip and a sleeve, one end of the sleeve is provided with a connecting ear for connecting to a bidirectional rotating lifting ring, and the steel wire clip is installed at the end of the sleeve provided with the connecting ear for clamping the steel wire. The steel wire is extended from the other end of the sleeve and then clamped by the steel wire clip to connect the steel wire to the sleeve. The above-mentioned traction connection plate can be made of 20mm thick steel plate, and the shackle, bidirectional rotating lifting ring, steel wire clip, and winch used are conventional standard materials and can be purchased on the market; the connector can be purchased with suitable steel wire clips and sleeves on the market, and the connecting ears connected to the bidirectional rotating lifting ring can be welded on the sleeve.

[0011] The traction device for steel strand unloading connects the steel wire rope of the winch to one end of the traction connecting plate, and the winch is used to pull the traction connecting plate to move. The other end of the traction connecting plate is laterally provided with a plurality of shackle second connection holes, and each shackle second connection hole is installed with a shackle second. The shackle second is connected to one end of the steel strand through a bidirectional rotating lifting ring and a connector. The connection is convenient, and the rotation torque formed during the traction of the steel strand can be effectively eliminated, so that the traction is smooth and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the connection structure of the traction device used for steel strand cutting;

[0013] Figure 2 yes Figure 1 Schematic diagram of the connection relationship of the middle traction connecting plate;

[0014] The names corresponding to the serial numbers in the figure are:

[0015] 1. Winch; 2. Wire rope; 3. Shackle 1; 4. Traction connecting plate; 5. Shackle 2; 6. Bidirectional rotating lifting ring; 7. Connector; 8. Steel strand; 9. Travel wheel; 10. Shackle 2 connecting hole; 11. Connecting ear; 12. Steel strand clip; 13. Sleeve; 14. Shackle 1 connecting hole. DETAILED DESCRIPTION

[0016] The technical solutions of the invention are described clearly and completely below in conjunction with the embodiments. The described embodiments are only a part of the present invention, rather than all the embodiments. Example

[0017] A traction device for unloading steel strands includes a hoist 1 and a traction connecting plate 4. The steel wire rope 2 of the hoist 1 is connected to one end of the traction connecting plate 4. The other end of the traction connecting plate 4 is laterally provided with a plurality of shackle second connection holes 10. Each shackle second connection hole 10 is installed with a shackle second 5. The shackle second 5 is connected to one end of the steel strand 8 through a bidirectional rotating lifting ring 6 and a connector 7.

[0018] A walking wheel 9 is installed at the bottom of the traction connecting plate 4.

[0019] The steel wire rope 2 of the hoist 1 is connected to the traction connecting plate 4 through a shackle 3. The traction connecting plate 4 is provided with a shackle connecting hole 14, and the shackle 3 is installed in the shackle connecting hole 14.

[0020] The connector 7 includes a steel strand clamp 12 and a sleeve 13. One end of the sleeve 13 is provided with a connecting ear 11 for connecting to the bidirectional rotating eye 6. The steel strand clamp 12 is installed at the end of the sleeve 13 where the connecting ear 11 is provided to clamp the steel strand 8. The steel strand 8 extends from the other end of the sleeve 13 and is then clamped by the steel strand clamp 12, connecting the steel strand 8 to the sleeve 13.

[0021] When cutting the steel strand 8, mark the required cutting length of the steel strand in advance. After the winch 1 is placed and fixed, the wire rope 2 of the winch 1 is connected to the shackle one connecting hole 14 of the traction connecting plate 4 through the shackle one 3. The multiple shackle two connecting holes 10 at the other end of the traction connecting plate 4 are respectively connected to a shackle two 5. Each shackle two 5 is connected to a bidirectional rotating lifting ring 6, and the bidirectional rotating lifting ring 6 is connected to the connecting ear 11 of the sleeve 13. Finally, the sleeve 13 is squeezed and fixed with the steel strand clip 12 installed at the end of the steel strand, and the winch 1 is started to recycle the steel wire rope 2. The traction connecting plate 4 is pulled by the steel wire rope 2 to complete the cutting and traction of multiple steel strands 8 at one time. Multiple sets of bidirectional rotating lifting rings 6 and sleeves 13 and steel strand clips 12 can be equipped. After completing the unloading and traction of a steel strand 8, the staff will connect the spare bidirectional rotating lifting rings 6 and sleeves 13 and steel strand clips 12 to the steel strand 8. When the traction connecting plate 4 returns to the starting position, the bidirectional rotating lifting rings 6 and sleeves 13 and steel strand clips 12 previously connected to the shackle 2 5 are removed as a next round of unloading and traction, and the bidirectional rotating lifting rings 6 and sleeves 13 and steel strand clips 12 connected to the steel strand 8 are connected to the shackle 2 5 to carry out a new round of unloading and traction of the steel strand 8.

[0022] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the scope of protection of the present invention.

Claims

1. A traction device for unloading steel strands, comprising a hoist (1) and a traction connecting plate (4), wherein a steel wire rope (2) of the hoist (1) is connected to one end of the traction connecting plate (4), and is characterized in that: The other end of the traction connecting plate (4) is laterally provided with a plurality of shackle second connection holes (10), each shackle second connection hole (10) is installed with a shackle second (5), and the shackle second (5) is connected to one end of the steel strand (8) through a bidirectional rotating lifting ring (6) and a connector (7).

2. The traction device for steel strand cutting according to claim 1, characterized in that: Travel wheels (9) are installed at the bottom of the traction connecting plate (4).

3. The traction device for steel strand cutting according to claim 1, characterized in that: The steel wire rope (2) of the hoist (1) is connected to the traction connecting plate (4) via a shackle (3). A shackle connecting hole (14) is provided on the traction connecting plate (4), and the shackle (3) is installed in the shackle connecting hole (14).

4. The traction device for steel strand cutting according to claim 1, characterized in that: The connector (7) includes a steel strand clamp (12) and a sleeve (13), one end of the sleeve (13) is provided with a connecting ear (11) for connecting to a bidirectional rotating eye (6), and the steel strand clamp (12) is installed at the end of the sleeve (13) provided with the connecting ear (11) for clamping the steel strand (8).

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