Steel strand tensioning device
Through the fixed plate, pressing mechanism and servo motor driven bevel gear system, the problem of traditional steel strand tensioning device that is difficult to accurately control the tension is solved, stable tensioning of the steel strand is achieved, and project safety and work efficiency are improved.
Patent Information
- Application Number
- CN202520013185.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Traditional steel strand tensioning devices are difficult to accurately control tension, causing the steel strand to easily bend and deform during use. Manual operation is also inefficient, costly, and prone to human errors.
The fixing plate, pressing mechanism, first roller and second roller are matched together, and the bevel gear system driven by the servo motor is used to automatically control the tensioning process of the steel strand, ensuring that the steel strand always maintains a stable tension state during use.
It achieves stable tensioning of the steel strands, improves the safety and quality of the project, reduces labor costs and human errors, and improves work efficiency.
Smart Images
Figure CN223357117U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of tensioning technology, and more specifically, to a steel strand tensioning device. Background Art
[0002] The steel strand tensioning device is a device used to apply and maintain a specific tension on thinner steel strands. It can accurately control the tension of the steel strands to ensure that the steel strands remain in a stable tensioned state during use. It is widely used in engineering fields such as bridges, buildings, rock and soil anchoring, as well as in power transmission, cable cars and other occasions where steel strands need to transmit force.
[0003] However, thinner steel strands have a smaller moment of inertia and are relatively weaker in resisting bending deformation. In an untensioned state, they are highly susceptible to bending deformation even under minimal external forces. Traditional steel strand handling methods often struggle to meet the requirements for precise tensioning. Manual tensioning is not only inefficient and labor-intensive, but can also lead to uneven and inaccurate tensioning due to human factors. This makes it difficult to maintain a stable tension on the steel strands, posing a potential threat to project safety and quality.
[0004] In view of this, the present application proposes a steel strand tensioning device. Utility Model Content
[0005] The purpose of this application is to provide a steel strand tensioning device that solves the technical problems in the above-mentioned background technology.
[0006] The technical solution of the present application provides a steel strand tensioning device, comprising a fixed plate, a pressing mechanism for pressing the steel strand is provided on one side of the upper end surface of the fixed plate, a fixed frame is fixedly connected to the other side of the upper end surface of the fixed plate, a first roller is provided above the interior of the fixed frame; the pressing mechanism comprises a support frame fixedly connected to one side of the upper end surface of the fixed plate, a movable frame is slidably connected to the interior of the support frame, a second roller is provided inside the movable frame, and a threaded rod is fixedly connected to the upper end surface of the movable frame, and the threaded rod passes through the upper end of the support frame.
[0007] Optionally, the upper end surface of the support frame is rotatably connected to a first bevel gear, and the threaded rod passes through the first bevel gear and is rotatably connected to the first bevel gear via a thread, and a second bevel gear is meshed on one side above the first bevel gear.
[0008] Optionally, an extension plate is fixedly connected to one side of the upper end surface of the support frame, the second bevel gear is rotatably connected to the extension plate, the end surface of the extension plate away from the second bevel gear is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to the second bevel gear.
[0009] Optionally, a first rotating shaft is fixedly inserted into the interior of the first roller, and both ends of the first rotating shaft pass through the fixed frame and are rotatably connected to the fixed frame; a second rotating shaft is fixedly inserted into the interior of the second roller, and both ends of the second rotating shaft pass through the movable frame and are rotatably connected to the movable frame.
[0010] Optionally, sliding grooves are symmetrically provided on both sides of the support frame, and both ends of the second rotating shaft extend into the sliding grooves, and the outer walls of the first roller and the second roller are provided with limiting grooves.
[0011] Optionally, a mounting bar is symmetrically fixedly connected to the outer wall of the fixing plate, and a mounting opening is formed through the interior of the mounting bar.
[0012] One or more technical solutions provided in the technical solution of this application have at least the following technical effects or advantages:
[0013] This application cooperates with the fixed frame and the first roller so that the steel strand can be smoothly introduced into the device in the initial stage and maintain a stable direction in the limit groove to prevent it from deflecting. The rotation of the first bevel gear causes the threaded rod to drive the movable frame up and down under the limit of the support frame. This method ensures that the second roller can accurately apply pressure to the steel strand, forming an upper and lower cooperation with the first roller to gradually tighten the steel strand. This device can effectively solve the problem that thinner steel strands are easy to bend and deform due to their small cross-sectional moment of inertia. It can ensure that the steel strand is always in a stable tensioned state during use, improve the reliability and accuracy of the structure, and ensure the safety and quality of the project. Through the servo motor drive device, the automated tensioning process improves work efficiency and reduces labor costs and human errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the steel strand tensioning device disclosed in an embodiment of the present application;
[0015] Figure 2 This is a schematic structural diagram of a support frame for a steel strand tensioning device disclosed in an embodiment of the present application;
[0016] Figure 3 This is a schematic diagram of the internal structure of the mobile frame of the steel strand tensioning device disclosed in an embodiment of the present application;
[0017] Explanation of the numbers in the figure: 1. Fixed plate; 2. Mounting bar; 3. Fixed frame; 4. First roller; 5. First rotating shaft; 6. Support frame; 7. Sliding groove; 8. Extension plate; 9. Servo motor; 10. First bevel gear; 11. Threaded rod; 12. Second bevel gear; 13. Moving frame; 14. Second roller; 15. Second rotating shaft; 16. Limiting groove; 17. Mounting port. DETAILED DESCRIPTION
[0018] The present application is further described in detail below with reference to the accompanying drawings.
[0019] Reference Figure 1-Figure 3 The embodiment of the present application provides a steel strand tensioning device, comprising a fixed plate 1, a pressing mechanism for pressing the steel strand is provided on one side of the upper end surface of the fixed plate 1, a fixed frame 3 is fixedly connected to the other side of the upper end surface of the fixed plate 1, and a first roller 4 is provided above the interior of the fixed frame 3; the pressing mechanism comprises a support frame 6 fixedly connected to one side of the upper end surface of the fixed plate 1, a movable frame 13 is slidably connected to the interior of the support frame 6, a second roller 14 is provided inside the movable frame 13, a threaded rod 11 is fixedly connected to the upper end surface of the movable frame 13, and the threaded rod 11 passes through the upper end of the support frame 6, and the upper end surface of the support frame 6 is rotatably connected to the first bevel gear 10, and the threaded rod 11 passes through the first bevel gear 10 and is rotatably connected to the first bevel gear 10 through a thread. A second bevel gear 12 is engaged on one side above the first bevel gear 10. The rotation of the first bevel gear 10 causes the threaded rod 11 to drive the movable frame 13 to move up and down under the limit of the support frame 6. This method ensures that the second roller 14 can accurately apply pressure to the steel strand, forming an upper and lower cooperation with the first roller 4 to gradually tighten the steel strand. This device can effectively solve the problem that thinner steel strands are easily bent and deformed due to their small cross-sectional inertia moment, and can ensure that the steel strands are always in a stable tensioned state during use, improve the reliability and accuracy of the structure, and ensure the safety and quality of the project.
[0020] An extension plate 8 is fixedly connected to one side of the upper end face of the support frame 6, and the second bevel gear 12 is rotatably connected to the extension plate 8. The end face of the extension plate 8 away from the second bevel gear 12 is fixedly connected to a servo motor 9. The servo motor 9 serves as a power source to drive the second bevel gear 12 to rotate, and then drives the first bevel gear 10 meshing with it to rotate, thereby realizing effective transmission and conversion of power. The output end of the servo motor 9 is fixedly connected to the second bevel gear 12, and the device is driven by the servo motor 9. The automated tensioning process improves work efficiency and reduces labor costs and human errors.
[0021] The first rotating shaft 5 is fixedly inserted into the interior of the first roller 4, and both ends of the first rotating shaft 5 pass through the fixed frame 3 and are rotatably connected to the fixed frame 3. The second rotating shaft 15 is fixedly inserted into the interior of the second roller 14, and both ends of the second rotating shaft 15 pass through the movable frame 13 and are rotatably connected to the movable frame 13. The first rotating shaft 5 and the second rotating shaft 15 play a good supporting and rotating role. Sliding grooves 7 are symmetrically provided on both sides of the support frame 6, and both ends of the second rotating shaft 15 extend into the sliding grooves 7. The outer walls of the first roller 4 and the second roller 14 are provided with limiting grooves 16. The steel wire rope can be smoothly introduced into the device in the initial stage and maintain a stable direction in the limiting groove 16 to prevent it from deflecting.
[0022] The outer wall of the fixed plate 1 is symmetrically fixedly connected with a mounting strip 2, and a mounting opening 17 is opened inside the mounting strip 2. The mounting opening 17 is used for bolts for position limiting installation. By installing the mounting strip 2 on the fixed plate 1, the entire device can be stably fixed in the specified position, providing a reliable foundation for the tensioning operation of the steel strand.
[0023] Working Principle: Thinner steel strands have smaller cross-sectional moments of inertia and are relatively weaker in their ability to resist bending deformation. In an untightened state, they are prone to bending deformation even when subjected to a small external force. Therefore, when using thinner steel strands, they need to be tightened to ensure their reliability and accuracy in various application scenarios. When the steel strands need to be tightened, the mounting strip 2 on the fixing plate 1 is first installed to the specified position. The steel strands first pass through the fixing frame 3 and are placed in the limiting groove 16 on the first roller 4. The steel strands then pass through the support frame 6, and the steel strands are located below the second roller 14. The staff starts the servo motor 9, and the servo motor 9 drives the output end to rotate. The rotation of the output end drives the second bevel gear 12 to rotate. The rotation of the second bevel gear 12 drives the first bevel gear 10 on the support frame 6 that is meshed with the second bevel gear 12 to rotate. Since the support frame 6 limits the movable frame 13, the rotation of the first bevel gear 10 drives the threaded rod 11 to move downward, and the downward movement of the threaded rod 11 drives the movable frame 13 to move downward. When the movable frame 13 moves downward, the second roller 14 will press down the steel strand, and the first roller 4 will lift the steel strand. By cooperating with the first roller 4 and the second roller 14 up and down, the steel strand is gradually tightened. When the steel strand is fully tightened, the servo motor 9 can be turned off.
[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A steel strand tensioning device, comprising a fixing plate (1), characterized in that: A pressing mechanism for pressing the steel strand is provided on one side of the upper end surface of the fixing plate (1), a fixing frame (3) is fixedly connected to the other side of the upper end surface of the fixing plate (1), and a first roller (4) is provided above the interior of the fixing frame (3); The pressing mechanism comprises a support frame (6) fixedly connected to one side of the upper end surface of the fixed plate (1); a movable frame (13) is slidably connected to the interior of the support frame (6); a second roller (14) is provided inside the movable frame (13); a threaded rod (11) is fixedly connected to the upper end surface of the movable frame (13), and the threaded rod (11) passes through the upper end of the support frame (6).
2. The steel strand tensioning device according to claim 1, characterized in that: The upper end surface of the support frame (6) is rotatably connected to a first bevel gear (10), and the threaded rod (11) passes through the first bevel gear (10) and is rotatably connected to the first bevel gear (10) via a thread, and a second bevel gear (12) is meshed on one side above the first bevel gear (10).
3. The steel strand tensioning device according to claim 2, characterized in that: An extension plate (8) is fixedly connected to one side of the upper end surface of the support frame (6), the second bevel gear (12) is rotatably connected to the extension plate (8), an end surface of the extension plate (8) away from the second bevel gear (12) is fixedly connected to a servo motor (9), and an output end of the servo motor (9) is fixedly connected to the second bevel gear (12).
4. The steel strand tensioning device according to claim 1, characterized in that: A first rotating shaft (5) is fixedly inserted into the interior of the first roller (4), and both ends of the first rotating shaft (5) pass through the fixed frame (3) and are rotatably connected to the fixed frame (3). A second rotating shaft (15) is fixedly inserted into the interior of the second roller (14), and both ends of the second rotating shaft (15) pass through the movable frame (13) and are rotatably connected to the movable frame (13).
5. The steel strand tensioning device according to claim 1, characterized in that: Sliding grooves (7) are symmetrically provided on both sides of the support frame (6), and both ends of the second rotating shaft (15) extend into the sliding grooves (7). The outer walls of the first roller (4) and the second roller (14) are both provided with limiting grooves (16).
6. The steel strand tensioning device according to claim 1, characterized in that: The outer wall of the fixed plate (1) is symmetrically fixedly connected with a mounting strip (2), and a mounting opening (17) is provided through the interior of the mounting strip (2).