Track plate prestressed reinforcement tensioning equipment

Abstract

The utility model provides a track slab prestressed reinforcement tensioning device, and relates to the field of reinforcement tensioning equipment.The track slab prestressed reinforcement tensioning device comprises a rod head, a plug pin, a baffle ring and a rod body, an extension rod is fixedly installed at one end of the rod head, the rod body is arranged on one side of the rod head, and a connecting groove for the extension rod to be inserted is formed in the end of the rod body; inserting holes are formed in the two opposite inner walls of the connecting groove, the plug pin penetrates through the two inserting holes, grooves are formed in the two opposite inner walls of one inserting hole, telescopic pieces used for positioning and limiting the plug pin are arranged in the two grooves in the inner walls of the inserting holes, and the inner wall of the baffle ring is in threaded connection with the outer surface of the rod body; according to the track plate prestressed reinforcement tensioning equipment, the split type tensioning rod is arranged, so that maintenance and replacement are convenient, if the tensioning rod or an anchorage device is damaged or breaks down, only the corresponding part needs to be replaced, and in addition, the durability of the structure can be improved through the design of the split type tensioning rod.

Description

Technical Field

[0001] The utility model relates to the field of steel bar tensioning equipment, in particular to a track plate prestressed steel bar tensioning equipment. Background Art

[0002] Track slabs, also known as track pads or track slabs, are an important component of railway tracks. They are the direct load-bearing and guiding part of the railway track. By connecting the sleepers and rails, they enable trains to run smoothly and safely.

[0003] Track slabs are typically made of concrete or other hard materials, providing the strength and durability to withstand the weight of trains and the impact forces generated during operation. Their shape and size vary depending on the design and usage requirements of the railway line, and can be flat, flat with ribs, or other forms.

[0004] The tensioning of prestressed steel bars in track slabs is a key step in the production process of track slabs. Prestressed steel bars play a role in strengthening and reinforcing the track slabs. By applying prestress during the tensioning process, the bearing capacity and crack resistance of the track slabs are improved.

[0005] When tensioning steel bars, a tensioning rod is required. One end of the tensioning rod is put on the steel bar, and the tensioning of the steel bar is achieved through the tensioning rod. However, the existing tensioning rod is generally one-piece. Once the one-piece tensioning rod is damaged or needs to be replaced, it usually needs to be replaced as a whole, rather than just the damaged part. This increases the cost of maintenance and replacement and may cause prolonged downtime during construction. In addition, the one-piece tensioning rod may have stress concentration problems at the connection. Since the entire tensioning rod is an integrated structure, the strength and durability of the connection may be challenged, and it is prone to damage or fatigue fracture.

[0006] Therefore, it is necessary to provide a new track slab prestressed steel bar tensioning equipment to solve the above technical problems. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a track slab prestressed steel bar tensioning device.

[0008] The track plate prestressed steel bar tensioning device provided by the utility model comprises a rod head, a latch, a retaining ring and a rod body, wherein an extension rod is fixedly mounted on one end of the rod head, the rod body is arranged on one side of the rod head, a connecting groove for inserting the extension rod is provided at the end of the rod body, and insertion holes are provided on two opposite inner walls of the connecting groove, the latch passes through the two insertion holes, a groove is provided on two opposite inner walls of one insertion hole, and telescopic parts for positioning and limiting the latch are provided in the two grooves of the inner wall of the insertion hole, and the inner wall of the retaining ring is threadedly connected to the outer surface of the rod body;

[0009] The telescopic part includes a movable column and a compression spring, one end of the compression spring is fixedly connected to the bottom wall of the groove on the inner wall of the socket, one end of the movable column is fixedly connected to the compression spring, and the other end of the movable column is a hemispherical structure. The outer surface of the pin is provided with a groove for the end of the hemispherical structure to move into.

[0010] Preferably, a docking screw hole is provided at one end of the rod head away from the extension rod.

[0011] Preferably, a thread is provided on the inner wall of the connecting groove, and the outer surface of the extension rod is threadedly connected to the inner wall of the connecting groove.

[0012] Preferably, the extension rod is interference fit with the inner wall of the connecting groove.

[0013] Preferably, the rod body includes a main rod, a guide outer column, a stop head and an operating end, the connecting groove is opened at the end of the main body, the stop ring is threadedly connected to the main rod, one end of the main rod is fixedly connected to one end of the guide outer column, the other end of the guide outer column is fixedly connected to the stop head through a connecting rod, and the operating end is connected to one end of the stop head.

[0014] Preferably, the end of the stop head facing the operating end is provided with a first guide angle.

[0015] Preferably, a second guide angle is provided on both sides of the guide outer column.

[0016] Compared with related technologies, the track slab prestressed steel bar tensioning equipment provided by the present invention has the following beneficial effects:

[0017] The lever is moved into the two opposite ends of the lever, and the lever is engaged with the lever, which in turn engages the spring, which in turn engages the spring, which in turn engages the lever, which in turn engages the lever, which in turn engages the lever, which in turn engages the lever, which in turn engages the lever, and the lever, which in turn engages the lever, engages the lever, which in turn engages the lever, and the lever, which in turn engages the lever, engages the lever.

[0018] The device is equipped with a split tension rod, which makes maintenance and replacement easy. If the tension rod or anchor is damaged or malfunctions, only the corresponding part needs to be replaced instead of the entire tension rod. This helps to reduce maintenance costs and reduce downtime during construction. In addition, the split tension rod design can reduce stress concentration areas to a certain extent and improve the durability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the track slab prestressed steel bar tensioning equipment provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic cross-sectional structural diagram of the structure shown;

[0021] Figure 3 for Figure 1 A schematic structural diagram of a partial cross-section of the structure shown;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure at A of the structure shown.

[0023] Numbers in the figure: 1. Rod head; 2. Extension rod; 3. Main rod; 4. Connecting groove; 5. Socket; 6. Latch; 7. Retaining ring; 8. Compression spring; 9. Movable column; 10. Docking screw hole; 11. Guide outer column; 12. Retaining head; 13. Operating end; 14. First guide angle; 15. Second guide angle. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] Please refer to Figure 1-Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of the track slab prestressed steel bar tensioning equipment provided by the utility model; Figure 2 for Figure 1 A schematic cross-sectional structural diagram of the structure shown; Figure 3 for Figure 1 A schematic structural diagram of a partial cross-section of the structure shown; Figure 4 for Figure 3 Schematic diagram of the structure at A of the structure shown.

[0026] In the specific implementation process, Figure 1-Figure 3The cam 7 is a kind of cam which is fixed on the cam 1 and is used for the locking cam 2 of the cam 1. The cam 1 is provided with a screw thread 12 and a screw thread 26 which is used for locking the cam 1 and the locking cam 2 of the cam 1. The cam 1 is provided with a screw thread 13 and a screw thread 26 which is used for locking the cam 1 and the locking cam 2 of the cam 1. When the end of the movable post 9 is in contact with the end of the movable post 9, the movable post 9 is squeezed so that the movable post 9 moves into the groove of the insertion hole 5, and the compression spring 8 is compressed. As the movable post 6 continues to move, when the end of the movable post 9 is facing the groove on the latch 6, the movable post 9 moves into the groove of the latch 6 under the action of the compression spring 8, thereby positioning the insertion position of the latch 6. In addition, under the action of the compression spring 8, the movable post 9 applies a certain pressure to the inner wall of the groove of the latch 6, thereby achieving a certain degree of initial limit for the latch 6. Then, the retaining ring 7 is rotated so that the retaining ring 7 is located in the position of the insertion hole 5. At this time, the latch 6 is located on the inner side of the retaining ring 7, thereby completing the connection between the rod head 1 and the rod body;

[0027] The rod body includes a main rod 3, a guide outer column 11, a stop head 12 and an operating end 13. The connecting groove 4 is opened at the end of the main body. The stop ring 7 is threadedly connected to the main rod 3. One end of the main rod 3 is fixedly connected to one end of the guide outer column 11. The other end of the guide outer column 11 is fixedly connected to the stop head 12 through a connecting rod. The operating end 13 is connected to one end of the stop head 12. A first guide angle 14 is opened at one end of the stop head 12 facing the operating end 13, and a second guide angle 15 is opened on both sides of the guide outer column 11.

[0028] When the lever 1 is in the unlocked position, the lever 1 is unlocked, and the locking nut 6 is unlocked, so that the lever 1 is unlocked.

[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A track slab prestressed steel bar tensioning device, characterized in that: The invention comprises a rod head (1), a latch pin (6), a retaining ring (7) and a rod body, wherein an extension rod (2) is fixedly mounted on one end of the rod head (1), the rod body is arranged on one side of the rod head (1), a connecting groove (4) for inserting the extension rod (2) is provided at the end of the rod body, a socket (5) is provided on two opposite inner walls of the connecting groove (4), the latch pin (6) passes through the two sockets (5), a groove is provided on two opposite inner walls of one socket (5), and a telescopic member for positioning and limiting the latch pin (6) is provided in both grooves of the inner wall of the socket (5), and the inner wall of the retaining ring (7) is threadedly connected to the outer surface of the rod body; The telescopic member includes a movable column (9) and a compression spring (8), one end of the compression spring (8) is fixedly connected to the bottom wall of the groove on the inner wall of the socket (5), one end of the movable column (9) is fixedly connected to the compression spring (8), and the other end of the movable column (9) is a hemispherical structure. The outer surface of the pin (6) is provided with a groove for the end of the hemispherical structure to move into.

2. The track slab prestressed steel bar tensioning equipment according to claim 1, characterized in that: A butt screw hole (10) is provided at one end of the rod head (1) away from the extension rod (2).

3. The track slab prestressed steel bar tensioning equipment according to claim 1, characterized in that: The inner wall of the connecting groove (4) is provided with a thread, and the outer surface of the extension rod (2) is threadedly connected to the inner wall of the connecting groove (4).

4. The track slab prestressed steel bar tensioning equipment according to claim 1, characterized in that: The extension rod (2) is interference-fitted with the inner wall of the connecting groove (4).

5. The track slab prestressed steel bar tensioning equipment according to claim 1, characterized in that: The rod body comprises a main rod (3), a guide outer column (11), a stop head (12) and an operating end (13); the connecting groove (4) is opened at the end of the main rod (3); the stop ring (7) is threadedly connected to the main rod (3); one end of the main rod (3) is fixedly connected to one end of the guide outer column (11); the other end of the guide outer column (11) is fixedly connected to the stop head (12) via a connecting rod; and the operating end (13) is connected to one end of the stop head (12).

6. The track slab prestressed steel bar tensioning device according to claim 5, characterized in that: The end of the stop head (12) facing the operating end (13) is provided with a first guide angle (14).

7. The track slab prestressed steel bar tensioning device according to claim 6, characterized in that: Second guide angles (15) are provided on both sides of the guide outer column (11).

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