Steel strand threading device for bridge prestress construction

Abstract

The utility model discloses a steel strand threading device for bridge prestress construction, which comprises a threading device main body, a threading groove is formed in the inner side of the threading device main body, a rotating rod is movably connected to the inner side of the threading groove, and a rotating disc is fixedly connected to the upper side of the rotating rod. According to the utility model, through the arrangement of the turntable, a plurality of driving wheels can be mounted on the turntable, so that the plurality of driving wheels can be driven to rotate during use, each driving wheel cannot be always limited at a fixed position to be in contact with a steel strand, the phenomenon that the driving wheel is worn too fast is avoided, and the transportation stability of the device is ensured; by arranging a first horizontal gear and a second horizontal gear, the multiple worms can rotate at the same time, so that driving rods on the two sides can be conveniently driven to rotate and move at the same time, the transportation stability of the device is improved, and the problem that an existing steel strand threading device driving wheel slips due to abrasion during use is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strands, in particular to a steel strand threading device for bridge prestressed construction. Background Technique

[0002] A steel strand is an iron and steel product composed of multiple steel wires twisted together. The main characteristics of the steel strand are high strength and good relaxation performance. Steel strands are commonly used in the tie rods, stay cables and external prestressed projects of bridges. In some construction projects, corrugated pipes are pre-buried in concrete, and then a threading device is used to convey the steel strands into the steel strands. Currently, the commonly used threading device drives the steel strand transmission with a driving wheel. After long-term use, the driving wheel of the threading device is prone to wear and even slip, making the driving wheel inconvenient to use.

[0003] Therefore, it is necessary to design and transform the steel strand threading device to solve the problem that the driving wheel slips due to wear during use. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a steel strand threading device for bridge prestressed construction.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A steel strand threading device for bridge prestressed construction, including a threading device main body. A threading groove is opened inside the threading device main body. A rotating rod is movably connected inside the threading groove. A turntable is fixedly connected to the upper side of the rotating rod. A connecting plate is movably connected to the outside of the turntable. Connecting grooves are opened on the surfaces of the connecting plate and the turntable. A connecting screw is threadedly connected inside the connecting groove. Driving wheels are movably connected to the sides of the connecting plates close to each other. A worm gear is fixedly connected to the outside of the rotating rod. A worm is movably connected to the sides of the worm gears close to each other. The worm is movably connected to the threading groove. A driving motor is fixedly connected inside the threading groove. A first flat gear is fixedly connected to the left side of the driving motor. Second flat gears are meshed with both the front and rear sides of the first flat gear. The second flat gears are fixedly connected to the worm. A through groove is opened on the surface of the threading device main body. The through groove communicates with the threading groove. An adjusting groove is opened on the upper surface of the threading device main body.

[0006] Preferably, a moving groove is opened on the surface of the threading device main body. The moving groove communicates with the adjusting groove. A baffle is movably connected inside the moving groove.

[0007] Preferably, fixing grooves are opened on the surface of the baffle and the surface of the threading device main body. A fixing screw is threadedly connected inside the fixing groove.

[0008] Preferably, an installation groove is formed inside the driving wheel, and a friction layer is fixedly connected inside the installation groove.

[0009] Preferably, a protective shell is fixedly connected to the left side of the main body of the wire threading device, lubricating oil is arranged inside the protective shell, and the first spur gear and the second spur gear are used in cooperation with the lubricating oil.

[0010] Preferably, a mounting block is fixedly connected to the outside of the main body of the wire threading device, and a placement groove is formed on the surface of the mounting block.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By setting the turntable in the present utility model, multiple driving wheels can be installed on the turntable, so that multiple driving wheels can be driven to rotate during use, so that each driving wheel will not always be restricted to contact the steel strand at a fixed position, thereby avoiding the phenomenon of excessive wear, ensuring the stability of the device transportation. By setting the first spur gear and the second spur gear, multiple worm gears can rotate simultaneously, so as to facilitate driving the driving rods on both sides to rotate and move simultaneously, improving the stability of the device transportation, and solving the problem that the driving wheels of the existing steel strand wire threading device slip due to wear during use.

[0013] 2. Through the setting of the moving groove and the baffle in the present utility model, it is convenient to open and close the main body of the wire threading device, so as to facilitate the replacement and maintenance of the driving wheel, and improve the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the structure of the present utility model;

[0015] Figure 2 is the side view of the structure of the present utility model;

[0016] Figure 3 is the rear view of the structure of the present utility model.

[0017] In the figure: 1. Main body of wire threading device; 2. Wire threading groove; 3. Rotating rod; 4. Turntable; 5. Connecting plate; 6. Connecting groove; 7. Connecting screw; 8. Driving wheel; 9. Worm gear; 10. Worm; 11. Driving motor; 12. First spur gear; 13. Second spur gear; 14. Through groove; 15. Adjusting groove; 16. Moving groove; 17. Baffle; 18. Fixed groove; 19. Fixed screw; 20. Installation groove; 21. Friction layer; 22. Protective shell; 23. Lubricating oil; 24. Mounting block; 25. Placement groove. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0019] As Figures 1 to 3 shown, a steel strand threading device for bridge prestressed construction provided by the present invention includes a threading device main body 1. A threading groove 2 is opened inside the threading device main body 1. A rotating rod 3 is movably connected inside the threading groove 2. A turntable 4 is fixedly connected to the upper side of the rotating rod 3. A connecting plate 5 is movably connected to the outside of the turntable 4. Connecting grooves 6 are opened on the surfaces of both the connecting plate 5 and the turntable 4. The turntable 4 can be provided with multiple connecting grooves 6 according to the usage situation, so as to facilitate the installation of multiple driving wheels 8, so as to further reduce the loss suffered by each driving wheel 8 and extend the service life of the device. A connecting screw 7 is threadedly connected inside the connecting groove 6. Driving wheels 8 are movably connected to the mutually approaching sides of the connecting plate 5. When the driving wheels 8 rotate to approach each other, the distance between them can be close to the steel strand, so that the friction between the steel strand and the driving wheels 8 is sufficient to push the steel strand to move, so as to ensure the stability of the device pushing. A worm gear 9 is fixedly connected to the outside of the rotating rod 3. A worm 10 is movably connected to the mutually approaching sides of the worm gear 9. The worm 10 is movably connected to the threading groove 2. A driving motor 11 is fixedly connected inside the threading groove 2. A first flat gear 12 is fixedly connected to the left side of the driving motor 11. Second flat gears 13 are engaged with both the front and rear sides of the first flat gear 12. The second flat gears 13 are fixedly connected to the worm 10. A through groove 14 is opened on the surface of the threading device main body 1. The through groove 14 communicates with the threading groove 2. An adjustment groove 15 is opened on the upper surface of the threading device main body 1.

[0020] Refer to Figure 1 , a moving groove 16 is opened on the surface of the threading device main body 1. The moving groove 16 communicates with the adjustment groove 15. A baffle 17 is movably connected inside the moving groove 16.

[0021] As a technical optimization scheme of the present invention, through the arrangement of the moving groove 16 and the baffle 17, it is convenient to switch the threading device main body 1, so as to facilitate the replacement and repair of the driving wheels 8, and improve the convenience of the device use.

[0022] Refer to Figure 1 , fixing grooves 18 are opened on the surface of the baffle 17 and the surface of the threading device main body 1. A fixing screw 19 is threadedly connected inside the fixing groove 18.

[0023] As a technical optimization solution of the utility model, by setting the fixing groove 18 and the fixing screw 19, the baffle 17 can be tightly connected to the threading device body 1 through the fixing screw 19 when not in use, thereby improving the stability of the device.

[0024] refer to Figure 1 A mounting groove 20 is provided on the inner side of the driving wheel 8 , and a friction layer 21 is fixedly connected to the inner side of the mounting groove 20 .

[0025] As a technical optimization solution of the utility model, by setting the installation groove 20 and the friction layer 21, the friction coefficient between the driving wheel 8 and the steel strand can be further increased through the friction layer 21 when they contact each other, thereby further avoiding slipping and improving the stability of the device.

[0026] refer to Figure 2 A protective shell 22 is fixedly connected to the left side of the threading device body 1. Lubricating oil 23 is arranged inside the protective shell 22. The first flat gear 12 and the second flat gear 13 are used in conjunction with the lubricating oil 23.

[0027] As a technical optimization solution of the utility model, by providing the protective shell 22 and the lubricating oil 23, the meshing between the first spur gear 12 and the second spur gear 13 is smoother, thereby improving the convenience of using the device.

[0028] refer to Figure 1 A mounting block 24 is fixedly connected to the outer side of the threading device body 1, and a placement groove 25 is opened on the surface of the mounting block 24.

[0029] As a technical optimization solution of the present invention, the arrangement of the mounting block 24 and the placement groove 25 makes the device easy to install, thereby improving the convenience of the device.

[0030] The working principle and use process of the utility model are as follows: when in use, the steel strand is fed into the inner side of the threading device body 1, and the driving motor 11 is started, and the first flat gear 12 is driven to rotate by the driving motor 11, and the second flat gear 13 is driven to rotate by the first flat gear 12, and the worm 10 is driven to rotate by the second flat gear 13, and the worm 10 drives the worm wheel 9 to rotate, and the rotating rod 3 is driven to rotate by the worm wheel 9, and the rotating disk 4 is driven to rotate by the rotating rod 3, and the driving wheel 8 is driven to rotate by the rotating disk 4, so that the driving wheel 8 can contact the steel strand, and the steel strand is moved by the contact between the driving wheel 8 and the steel strand. When replacing the driving wheel 8, the fixing screw 19 is rotated so that the fixing screw 19 is screwed out from the inner side of the baffle 17, and then the baffle 17 is pulled to a suitable position, and then the connecting screw 7 is rotated so that the connecting screw 7 is screwed out from the inner side of the connecting groove 6, and then the connecting plate 5 is removed from the upper side of the turntable 4.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel strand threading device for bridge prestressing construction, comprising a threading device body (1), characterized in that: The threading device body (1) has a threading groove (2) formed inside, a rotating rod (3) is movably connected to the inside of the threading groove (2), a rotating disk (4) is fixedly connected to the upper side of the rotating rod (3), a connecting plate (5) is movably connected to the outer side of the rotating disk (4), a connecting groove (6) is formed on the surface of the connecting plate (5) and the surface of the rotating disk (4), a connecting screw (7) is threadedly connected to the inner side of the connecting groove (6), a driving wheel (8) is movably connected to the side of the connecting plate (5) close to each other, a worm wheel (9) is fixedly connected to the outer side of the rotating rod (3), and the side of the worm wheel (9) close to each other is movably connected to the outer side of the rotating rod (3). A worm (10) is connected, the worm (10) and the threading groove (2) are movably connected, a driving motor (11) is fixedly connected to the inner side of the threading groove (2), a first flat gear (12) is fixedly connected to the left side of the driving motor (11), the first flat gear (12) is meshed with a second flat gear (13) on both the front and rear sides, the second flat gear (13) and the worm (10) are fixedly connected, a through groove (14) is provided on the surface of the threading device body (1), the through groove (14) is connected to the threading groove (2), and an adjustment groove (15) is provided on the upper side surface of the threading device body (1).

2. A steel strand threading device for bridge prestressing construction according to claim 1, characterized in that: A movable groove (16) is provided on the surface of the threading device body (1), the movable groove (16) is connected to the adjustment groove (15), and a baffle (17) is movably connected to the inner side of the movable groove (16).

3. A steel strand threading device for bridge prestressing construction according to claim 2, characterized in that: A fixing groove (18) is provided on the surface of the baffle (17) and the surface of the threading device body (1), and a fixing screw (19) is threadedly connected to the inner side of the fixing groove (18).

4. The steel strand threading device for bridge prestressing construction according to claim 1 is characterized in that: A mounting groove (20) is provided on the inner side of the driving wheel (8), and a friction layer (21) is fixedly connected to the inner side of the mounting groove (20).

5. The steel strand threading device for bridge prestressing construction according to claim 1 is characterized in that: A protective shell (22) is fixedly connected to the left side of the threading device body (1), lubricating oil (23) is provided inside the protective shell (22), and the first flat gear (12) and the second flat gear (13) are used in conjunction with the lubricating oil (23).

6. The steel strand threading device for bridge prestressing construction according to claim 1 is characterized in that: A mounting block (24) is fixedly connected to the outside of the threading device body (1), and a mounting groove (25) is provided on the surface of the mounting block (24).

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