Threading device for box girder rubber rods

Abstract

This is a threading device for box girder rubber rods. [Solution] The threading device for the box girder rubber rod includes a main frame (1) and a drive box, the drive box includes a fixed box (13) and a slide box (16), and drive roller sets are provided on the sides of the lumen of the fixed box (13) and the lumen of the slide box (16) that are close to each other, the slide box (16) slides closer to the fixed box (13) to sandwich the box girder rubber rod, the push rod (32) is hinged to the outside of the fixed box (13) via a hinge rod (31), and the push rod (32) rotates around the hinge point via the hinge rod (31) to enter or exit the drive roller set, thereby pushing the box girder rubber rod after the push rod (32) has entered the drive roller set. By fitting or arranging multiple drive rollers (21), the rubber rod can be driven and moved simultaneously during the rotation process, eliminating the need for employees to push the rubber rod, thereby increasing work efficiency and reducing the burden on employees. Furthermore, by providing a push rod (32), if the drive rollers (21) cannot provide power, the rubber rod can be inserted into the appropriate position by pushing with the push rod (32), eliminating the need for employees to push it again, further enhancing the practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of box girder processing, and specifically, it is a box girder rubber rod threading apparatus.

Background Art

[0002] With the rapid development of infrastructure projects such as China's high-speed railways, the number of bridge girder construction projects in high-speed railways is increasing. However, the quality of prestress construction directly affects the quality of box girder construction, which is an important control process in box girder construction. To ensure the quality of prestress tension, generally, a rubber rod is adopted as a lining tube inside the prestress sleeve. Conventionally, a winding wheel is used for threading the rubber rod, which not only has a great safety risk but also requires a large amount of manpower and has a relatively low construction efficiency.

[0003] Therefore, it is necessary to provide a technical solution to improve the above deficiencies of the prior art.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present application is to overcome the deficiencies in the above prior art, and the present application provides a box girder rubber rod threading device.

Means for Solving the Problems

[0005] To achieve the above object, the present application provides the following technical solution.

[0006] A main frame, A driving box comprising a fixed box and a sliding box, wherein a driving roller set is provided on the sides of the inner cavity of the fixed box and the inner cavity of the sliding box that are close to each other, and the sliding box slides closer to the fixed box, thereby sandwiching the box girder rubber rod, and the driving roller set drives the box girder rubber rod to drill a hole. A push rod is hinged to the outside of the fixed box via a hinge rod (connecting rod, articulation rod), wherein the push rod rotates around a hinge point (articulation point) via the hinge rod to enter or exit the drive roller set, and after the push rod enters the drive roller set, it pushes the box girder rubber rod. A threading device for box girder rubber rods, including, Each of the drive roller sets includes at least two drive rollers distributed linearly at intervals, one end of each drive roller being rotatably connected to a corresponding fixed box or slide box. The drive rollers of each drive roller set are synchronously driven via a first motor, and arc-shaped notches corresponding to the drive rollers are provided on both sides of the fixed box or on both sides of the sliding box. A guide pipe corresponding to the box girder rubber rod is provided in one of the arc-shaped notches of the fixed box, and an arc-shaped groove is provided in the central part of the drive roller, the diameter corresponding to the arc-shaped groove is smaller than the diameter corresponding to the arc-shaped notch, and in the axial projection of the guide pipe, the outer edge of the arc-shaped groove is located within the arc-shaped notch. The hinge rod is an extendable rod, and the fixed box is provided with a drive member that drives the hinge rod to rotate around the hinge point. A threading device for a box girder rubber rod, wherein one end of the push rod is hinged to the side of the fixed box away from the box girder via a hinge rod, and the other end of the push rod extends to one of the drive rollers away from the hinge rod. Beneficial effect

[0007] The threading device for the box girder rubber rods, through the fitting and arrangement of multiple drive rollers, can simultaneously drive and move the rubber rods during the rotation process. Furthermore, it eliminates the need for employees to manually push the rubber rods, thereby increasing work efficiency and reducing the burden on employees. Moreover, the inclusion of a push rod allows the rubber rods to be inserted into the appropriate position by pushing if the drive rollers are unable to provide power, further eliminating the need for employees to push them again and increasing the practicality of the device. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram of the overall mounting structure of a threading device in a specific embodiment provided by this application. [Figure 2] This is a schematic diagram of the mounting structure of the connecting frame in a specific embodiment provided by this application. [Figure 3] This is a schematic diagram of the explosion structure of the drive box in a specific embodiment provided by this application. [Figure 4] This is a schematic diagram of the mounting structure of the slide box in a specific embodiment provided by this application. [Figure 5] This is a schematic diagram of the mounting structure of the drive roller in a specific embodiment provided by this application. [Figure 6] This is a schematic diagram of the guide pipe mounting structure in a specific embodiment provided by this application. [Figure 7]This is a schematic diagram of the structure of a push rod in a specific embodiment provided by this application. [Figure 8] This is a schematic diagram of the structure of a pallet in a specific embodiment provided by this application. [Modes for carrying out the invention]

[0009] As shown in Figures 1-8, the threading device for a box girder rubber rod includes a main frame 1, a drive box, and a push rod 32. The drive box includes a fixed box 13 and a slide box 16. Drive roller sets are provided on the sides of the lumen of the fixed box 13 and the lumen of the slide box 16 that are close to each other. The two sets of drive roller sets are positioned opposite each other, thereby forming a drilling passage corresponding to the box girder rubber rod. The two sets of drive roller sets rotate on the same side as the drive box, and the slide box 16 slides closer to the fixed box 13, sandwiching the box girder rubber rod and driving the box girder rubber rod to drill. The two sets of drive roller sets are positioned directly opposite the drilling of the box girder rubber rod, thereby drilling the box girder rubber rod into the drilling during the rotation process of the drive roller sets.

[0010] The slide box 16 is positioned close to the fixed box 13 so as to slide, and by clamping the box girder rubber rod, frictional force is generated between the slide box 16 and the box girder rubber rod through the clamping action, and the box girder rubber rod can be driven via the drive roller set to perform drilling.

[0011] The slidable slide box 16 allows for adjustment of the distance between the fixed box 13 and the slide box 16 according to the thickness of the rubber rod, and further adjustment of the distance between the slide box 16 and the drive roller 21 according to the usage needs, thereby increasing the applicability of the device.

[0012] To ensure that the box girder rubber rod can be fully drilled within the hole in the box girder rubber rod, the threading device is provided with a push rod 32, which can further push the rubber rod after it has disengaged from the drive roller set due to the push, and this process forms a limit through the hole or guide pipe 29, thereby ensuring that the push rod 32 pushes the rubber rod into place.

[0013] The push rod 32 is correspondingly hinged to the outside of the fixed box 13 via the hinge rod 31, thereby allowing the push rod 32 to rotate around the hinge point via the hinge rod 31 to enter or exit the drive roller set. In the early stages of threading, the push rod 32 rotates outward to exit the drive roller set. Later in the later stages of threading, the push rod 32 rotates around the hinge point via the hinge rod 31 to enter between the two sets of drive roller sets, and the push rod 32 continues to push the box girder rubber rod even after entering the drive roller set.

[0014] The tops of the fixed box 13 and the slide box 16 are both connected by hinges to cover plates 26 for sealing, and a fixed rod 27 is screwed to one side of the outer surface of the two cover plates 26. The cover plates 26 make it easy for employees to open and inspect / maintain the internal components, and the fixed rod 27 ensures the connection stability of the cover plates 26.

[0015] Each drive roller set includes at least two linearly spaced drive rollers 21, and taking as an example that each drive roller set has two drive rollers 21, the bottom plate of the fixed box 13 or the bottom plate of the slide box 16 is used to assemble the drive rollers 21, the axis of the drive rollers 21 extends longitudinally, one end of the drive rollers 21 is rotatably connected to the corresponding fixed box 13 or slide box 16, and the other end of the drive rollers 21 is hinged to the cover plate 26, thereby ensuring the rotational stability of the drive rollers 21, and the drive rollers 21 of each drive roller set are synchronously driven via a first motor 22.

[0016] At least the bottom plate of the fixed box 13 or the bottom plate of the slide box 16 is provided with a fixed frame 17 for correspondingly mounting the drive roller 21, the fixed frame 17 can be a cover-like structure, the bottom of the fixed frame 17 is provided with three timing belt pulleys 18 for transporting power, a timing belt 19 for driving is wound around the outer surface of the timing belt pulleys 18, a tension pulley 20 for tension is connected to the bottom of the fixed frame 17 via a rotating shaft, a first motor 22 for driving is fixedly mounted on the top of the fixed frame 17, the output terminal of the first motor 22 is connected to the top of one of the timing belt pulleys 18 via a key, and the tops of the other two timing belt pulleys 18 are connected to the drive roller via a key The bottom of the roller 21 is connected, and in each set of drive rollers, the timing belt pulley 18, timing belt 19 and the first motor are fitted together or installed to drive and rotate the two drive rollers 21 simultaneously. This allows the rubber rod to be driven using the drive rollers 21, pushing the rubber rod instead of manual force, thereby improving work efficiency.

[0017] On both sides of the fixed box 13 or both sides of the slide box 16, arc-shaped cutouts corresponding to the drive rollers 21 are provided. The arc-shaped cutouts are used to form a conveying passage for the corresponding rubber rods. In either the fixed box 13 or the slide box 16, the outer edge of the drive roller set must be located within the arc-shaped cutout, thereby ensuring that the drive roller 21 can contact and push the rubber rod.

[0018] One of the arc-shaped cutouts in the fixed box 13 is provided with a guide pipe 29 corresponding to the box girder rubber rod. The diameter of the guide pipe 29 is slightly larger than the diameter of the rubber rod. The diameter difference between the two is based on the criterion that it can satisfy the threading of the rubber rod and be able to guide. The guide pipe 29 is detachably connected via a pallet 28. On the outer surface of the fixed box 13, a pallet 28 for support is connected via bolts. The pallet 28 is located on the side of the arc-shaped cutout. The pallet 28 is connected with a guide pipe 29 for guiding via bolts. On the side of the pallet 28 close to the arc-shaped cutout, an arc-shaped groove corresponding to the guide pipe 29 is provided.

[0019] By providing an arc-shaped groove at the central part of the drive roller 21, the contact area with the rubber rod can be increased. The diameter corresponding to the arc-shaped groove is smaller than the diameter corresponding to the arc-shaped cutout. In the axial projection of the guide pipe 29, the outer contour of the arc-shaped groove is located within the arc-shaped cutout, thereby avoiding the interference of the arc-shaped cutout with the movement trajectory of the rubber rod and ensuring the push to the rubber rod.

[0020] The cover plate 26 of the fixed box 13 and the cover plate 26 of the slide box 16 are provided with notches corresponding to the drilling passage between the two sets of drive rollers, so that the push rod 32 can enter or exit the drilling passage between the drive rollers while parallel to the axis of the rubber rod, and the hinge rod 31 is a telescopic rod that is able to extend and retract in accordance with the entry and exit of the push rod 32, ensuring that the push rod 32 enters precisely between the two sets of drive rollers. The fixed box 13 is provided with a drive member that drives the hinge rod 31 to rotate around the hinge point, and the drive member is preferably a stepping motor, and the stepping motor is fixed to the fixed box 13, the hinge rod 31 is fixed to the hinge shaft, and the hinge shaft and the main shaft of the stepping motor are fixed, so that the push rod 32 can be driven and moved via the stepping motor, and the hinge rod 31 is preferably an electromagnetic push rod 32, and the stepping motor and the electromagnetic push rod 32 work together so that the push rod 32 enters or exits between two sets of drive rollers.

[0021] One end of the push rod 32 is hinged to the side of the fixed box 13 away from the box girder via the hinge rod 31, and the other end of the push rod 32 extends to one of the drive rollers 21, which is away from the hinge rod 31.

[0022] Of course, depending on the length of the push rod 32, the hinge rod 31 is correspondingly fixed to the center of the push rod 32, and the push rod 32 is a hydraulic or electric cylinder that, after being placed between two sets of drive rollers, can push the rubber plate by the extension and retraction of the piston rod.

[0023] A base plate 24 for pushing is screwed onto the end of the push rod 32 in order to increase the contact area with the rubber rod.

[0024] The drive box is mounted on the support base 3, and the main frame 1 is provided with a lifting mechanism corresponding to the support base 3. The lifting mechanism allows the position of the support base 3 to be adjusted, and the corresponding holes for the rubber rods to be aligned.

[0025] The support base 3 is provided with a slot 14 corresponding to the slide box 16, and a screw is provided inside the slot 14. Below the slide box 16, a slider 15 is provided for screwing the screw into. The mutual fitting of the slot 14 and the slider 15 makes it easy to adjust the position of the slide box 16, and also makes it easy to adjust the distance between it and the drive roller 21 according to the thickness of the rubber rod. The fitting and provision of the pallet 28 and the guide pipe 29 assists and guides the sliding of the rubber rod, and the guide pipe 29 can also be easily removed and replaced according to the thickness of the rubber rod. The fitting and provision between the hinge rod 31 and the slot 14 allows the position of the push rod 32 to be adjusted as needed, making it convenient to push the rubber rod using the push rod 32.

[0026] A universal wheel 2 for movement is fixedly attached to the bottom of the main frame 1, and a brake piece for stopping the brake is provided on the outer surface of the universal wheel 2. The presence of the universal wheel 2 allows the device to be easily moved and is convenient for adjusting the device according to usage needs.

[0027] Guide frames 6 are provided on both sides of the main frame 1, and guide grooves 9 extending in the vertical direction are provided inside the guide frames 6. Guide blocks 10 extending into the guide grooves 9 are provided on both sides of the support seat 3, and the provision of guide blocks 10 allows them to engage with the guide grooves 9 to assist and guide the sliding of the support seat 3.

[0028] The lifting mechanism is a winch wheel 5, which is driven by a second motor 4. The upper end of the guide frame 6 is connected to a connecting frame 7 by bolts, and the provision of the connecting frame 7 ensures the stability of the connection between the two guide frames 6. Preferably, a fixed pulley 8 is connected and fixed to the center of the top of the connecting frame 7 to assist rotation, and the wire rope 25 of the winch wheel 5 bypasses the fixed pulley 8 and connects to the support seat 3 via a hook. The second motor 4 drives the winch wheel 5, pulls the wire rope 25, and further adjusts the position of the support seat 3 via a sub-hook 30 and a main hook 12.

[0029] In an optional embodiment, the support seat 3 is provided with a bracket 11 for connecting a lifting mechanism, thereby enabling vertical displacement of the support seat 3. The guide block 10 is located on the outer surface of the bracket 11, and the outer surface of the guide block 10 engages with the inner wall of the guide groove 9. The top of the bracket 11 is fixedly connected to a main hook 12 for engagement and fixing, and the outer surface of the main hook 12 engages with the outer surface of the sub-hook 30. Furthermore, the position of the bracket 11 is adjusted by dragging between the main hook 12 and the sub-hook 30.

[0030] The support seat 3 is provided with a stop block 23 corresponding to the slide box 16 to limit the maximum slip distance of the slide box 16, and a handle for pulling is fixedly connected to the outer surface of the push rod 32, and a non-slip cover for protection is connected to the outer surface of the handle. The provision of the handle makes it easy to pull the push rod 32, allows the position of the push rod 32 to be changed in a manual manner, and facilitates pushing the rubber rod. In this case, the hinge rod 31 can be a normal telescopic rod.

[0031] All electrical components mentioned in this text are electrically connected to an external master controller and 220V power, and the master controller can be any conventional, known device that can be controlled by a computer or similar. [Explanation of Symbols]

[0032] 1 Mainframe 2 Universal Wheels 3 Support seat 4. Second motor 5. Winding wheel 6 Guide Frames 7 Connection Frames 8 Fixed pulley 9 Guide grooves 10 Guide Blocks 11 brackets 12 Main Hooks 13 Fixed Box 14 slots 15 Sliders 16 Slide Box 17 Fixed frame 18 Timing belt pulley 19 Timing belt 20 tension pulleys 21 Drive rollers 22 First motor 23 Restriction Block 24 base plate 25 Wire rope 26 Cover Plate 27 Fixed rod 28 Palettes 29 Guide pipe 30 Sub-hooks 31 Hinge Rod 32 Pushrods

Claims

1. Mainframe and A drive box comprising a fixed box and a slide box, wherein a drive roller set is provided on the sides of the lumen of the fixed box and the lumen of the slide box that are close to each other, and the slide box slides closer to the fixed box, thereby sandwiching the box girder rubber rod, and the drive roller set drives the box girder rubber rod to drill a hole, A push rod that is hinged to the outside of the fixed box via a hinge rod, wherein the push rod rotates around the hinge point via the hinge rod to enter or exit the drive roller set, and after the push rod enters the drive roller set, pushes the box girder rubber rod. A threading device for box girder rubber rods, including, Each of the drive roller sets includes at least two drive rollers distributed linearly at intervals, and one end of each drive roller is rotatably connected to the corresponding fixed box or slide box. Each of the drive rollers in the drive roller set is synchronously driven via a first motor, and arc-shaped notches corresponding to the drive rollers are provided on both sides of the fixed box or on both sides of the slide box. A guide pipe corresponding to the box girder rubber rod is provided in one of the arc-shaped notches of the fixed box, and an arc-shaped groove is provided in the central part of the drive roller, the diameter corresponding to the arc-shaped groove is smaller than the diameter corresponding to the arc-shaped notch, and in the axial projection of the guide pipe, the outer edge of the arc-shaped groove is located within the arc-shaped notch. The hinge rod is an extendable rod, and the fixed box is provided with a drive member that drives the hinge rod to rotate around the hinge point. A threading device for a box girder rubber rod, characterized in that one end of the push rod is hinged to the side of the fixed box away from the box girder via a hinge rod, and the other end of the push rod extends to one of the drive rollers away from the hinge rod.

2. The threading device for a box girder rubber rod according to claim 1, characterized in that the drive box is provided on a support seat, and the main frame is provided with a lifting mechanism corresponding to the support seat.

3. The threading device for a box girder rubber rod according to claim 2, characterized in that the support base is provided with a slot corresponding to the slide box, a screw is provided in the slot, and a slider for screwing the screw is provided below the slide box.

4. The threading device for a box girder rubber rod according to claim 2, characterized in that guide frames are provided on both sides of the main frame, guide grooves extending in the vertical direction are provided on the inside of the guide frames, and guide blocks extending into the guide grooves are provided on both sides of the support seat.

5. The threading device for a box girder rubber rod according to claim 4, characterized in that the lifting mechanism is a hoisting wheel, a connecting frame is provided at the upper end of the guide frame, a fixed pulley is provided on the connecting frame, and the wire rope in the hoisting wheel bypasses the fixed pulley and then connects to the support seat via a hook.

6. The threading device for a box girder rubber rod according to claim 2, characterized in that the support base is provided with a limiting block corresponding to the slide box.

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