A type of integral threading machine

Abstract

This utility model relates to the field of prestressed construction technology and discloses an integrated strand threading machine, including a liftable support frame. A base is fixedly installed on the support frame, and hydraulic through-type jacks are spaced apart along the length of the base. Each hydraulic through-type jack has a steel strand clamping mechanism at its telescopic end, and the steel strand clamping mechanism has a through hole communicating with the middle of the hydraulic through-type jack. During operation, the steel strand clamping mechanisms at different positions alternately clamp the steel strand, and the hydraulic through-type jacks work alternately to complete the relay conveying of the steel strand. This utility model can not only adjust the height to match different working heights, but also achieve efficient, stable, and continuous conveying of steel strands, thus improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of prestressed construction technology, and in particular to an integral prestressing threading machine. Background Technology

[0002] In the construction of prestressed concrete structures, the threading of steel strands is a critical process, and its efficiency and quality directly affect the project progress and structural safety. Traditional steel strand threading equipment has the following problems: First, it is inefficient. Existing equipment mostly uses single-point traction and lacks a relay-style collaborative operation mechanism, which makes it impossible to continuously transport the steel strands during the threading process, reducing threading accuracy and efficiency. Second, it lacks adaptability. Traditional threading equipment is not convenient for flexibly adjusting the equipment height, making it difficult to adapt to different working conditions, requiring additional auxiliary equipment and increasing construction complexity.

[0003] Therefore, there is an urgent need for an integrated strand threading machine that can both adjust the height and achieve efficient, stable, and continuous conveying of steel strands. Utility Model Content

[0004] The purpose of this invention is to provide an integrated stranding machine that can be height-adjusted to match different working heights, and can achieve efficient, stable and continuous conveying of steel strands, thereby improving work efficiency.

[0005] The present invention adopts the following technical solution:

[0006] An integrated strand threading machine includes a liftable support frame with a base fixedly mounted on it. Hydraulic core-type jacks are spaced apart along the length of the base. Each hydraulic core-type jack has a steel strand clamping mechanism at its telescopic end, and the clamping mechanism has a through hole communicating with the center of the hydraulic core-type jack. During operation, the clamping mechanisms at different positions alternately clamp the steel strands, and the hydraulic core-type jacks work alternately to complete the relay delivery of the steel strands.

[0007] Preferably, the support frame is a hydraulic scissor lift platform.

[0008] Preferably, the support frame is provided with rollers at its bottom.

[0009] Preferably, the support frame is provided with a positioning rod.

[0010] Preferably, a positioning seat is provided at the bottom of the positioning rod.

[0011] Preferably, two hydraulic through-hole jacks are spaced apart on the base.

[0012] Preferably, the steel strand clamping mechanism includes a steel strand clamping sleeve, on which a clamping jack is provided, and a space for placing the steel strand is formed between the clamping jack and the steel strand clamping sleeve.

[0013] Preferably, the steel strand clamping sleeve is provided through at both ends, and a slot is provided at its upper part. The telescopic end of the clamping jack is provided with a clamping plate, which can be adjusted radially along the slot.

[0014] Preferably, the bottom of the steel strand clamping sleeve is provided with a sliding bracket, and the sliding bracket is in sliding contact with the base.

[0015] Preferably, the sliding bracket is provided with rollers at both ends, and the rollers slide on the base.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by setting up an adjustable support frame, the overall height of the equipment can be adjusted according to construction needs, making it suitable for threading operations in different positions and enhancing the versatility and adaptability of the equipment.

[0017] By alternating operations of multiple hydraulic threading jacks and steel strand clamping mechanisms, a continuous relay conveying of steel strands can be achieved, avoiding the intermittent pauses of traditional single-point stretching and significantly improving the threading efficiency, especially suitable for long-distance steel strand threading operations. Furthermore, the alternating operation of multiple spaced steel strand clamping mechanisms reduces the load on a single point, lowering the risk of mechanism wear; the coordinated action of alternating clamping and stretching balances the mechanism load, ensuring stability during long-term operation.

[0018] The central perforation structure of the hydraulic through-hole jack allows the steel strand to pass directly through, avoiding frictional damage to the steel strand caused by traditional traction methods, while reducing conveying resistance and extending the service life of the steel strand. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of this application;

[0020] Figure 2 This is a side view of an embodiment of this application;

[0021] Figure 3 This is a top view of an embodiment of this application. Detailed Implementation

[0022] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0023] like Figures 1 to 3As shown, the present invention discloses an integrated threading machine, comprising a liftable support frame 1. The support frame 1 preferably employs a hydraulic scissor lift platform, which, through hydraulic or electric drive, unfolds / folds the scissor arms to achieve vertical lifting of the threading machine. This allows for adjustment of the overall height of the equipment according to construction needs, making it suitable for threading operations in different locations and enhancing the equipment's versatility and adaptability. Furthermore, the support frame 1 is equipped with casters 2 at its bottom for easy movement of the threading machine. The casters 2 are located at the four corners of the bottom of the support frame 1 and can be self-locking casters. A positioning rod 3 is provided on the support frame 1, threadedly connected to it. By rotating the positioning rod 3 to contact the ground, the support frame 1 can be limited to ensure its stability. Preferably, a positioning seat 4 is provided at the bottom of the positioning rod 3 to increase the contact area with the ground and ensure effective positioning.

[0024] The support frame 1 has a base 5 on top, which is a rectangular frame structure welded from angle steel and channel steel. Hydraulic through-type jacks 6 are spaced apart along the length of the base 5, preferably two in number. Each hydraulic through-type jack 6 has a steel strand clamping mechanism at its end for clamping and fixing the steel strand during operation. The steel strand clamping mechanism has a through hole 7 that communicates with the center of the hydraulic through-type jack 6, facilitating the threading of the steel strand without the need for additional guiding devices, reducing frictional resistance and improving threading efficiency. This is particularly suitable for long-distance threading, avoiding the steel strand wear or jamming problems caused by friction in traditional traction methods.

[0025] Furthermore, the steel strand clamping mechanism includes a steel strand clamping sleeve 8, on which a clamping jack 9 is provided. A space for placing the steel strand is formed between the clamping jack 9 and the steel strand clamping sleeve 8. The steel strand clamping sleeve 8 is provided through at both ends, and the steel strand clamping sleeve 8 and the hydraulic through-type jack 6 are arranged coaxially to facilitate the smooth threading of the steel strand in the threading machine. A slot 10 is provided on the upper part of the steel strand clamping sleeve 8, and a clamping plate 11 is provided on the telescopic end of the clamping jack 9. The clamping plate 11 can be adjusted radially along the slot 10 so that the steel strand is clamped between the clamping plate 11 and the steel strand clamping sleeve 8 as the clamping plate 11 moves down, thus completing the positioning and fixing of the steel strand during threading.

[0026] Furthermore, a sliding bracket 12 is provided at the bottom of the steel strand clamping sleeve 8. The sliding bracket 12 is fixedly connected to the steel strand clamping sleeve 8 by bolts, which facilitates maintenance and replacement. The sliding bracket 12 slides in contact with the base 5. The sliding bracket 12 can provide support and guidance for the steel strand clamping sleeve 8, ensuring the stability of the movement of the steel strand clamping sleeve 8 during operation. Preferably, rollers 13 are movably provided at both ends of the sliding bracket 12. The rollers 13 slide on the base 5, and the setting of the rollers 13 can effectively reduce the friction between the sliding bracket 12 and the base 5 during operation.

[0027] Furthermore, in this embodiment, a pull rope displacement sensor (not shown in the figure) can also be installed on the hydraulic through-type jack 6. The pull rope on the pull rope displacement sensor is connected to the clamping jack 9 on the steel strand clamping sleeve 8. The pull rope displacement sensor can measure the displacement change of the hydraulic through-type jack 6 in real time, ensuring that the position of the steel strand is accurate and controllable during the stretching process. It is suitable for multiple sets of hydraulic through-type jacks 6 to work together, preventing uneven force or deviation of the steel strand due to asynchrony.

[0028] In operation, the steel strand clamping mechanism at the end clamps the steel strand, while the hydraulic through-type jack 6 at the end moves the steel strand. When the hydraulic through-type jack 6 moves to a set distance, the steel strand clamping mechanism releases its grip on the steel strand, and the hydraulic through-type jack 6 at the end resets. Then, the rear steel strand clamping mechanism clamps the steel strand, and the rear hydraulic through-type jack 6 moves the steel strand to the set distance. After that, the clamping is released, the rear hydraulic through-type jack 6 resets, and the front hydraulic through-type jack 6 starts working again. Through the alternating operation of multiple hydraulic through-type jacks 6 and steel strand clamping mechanisms, a continuous relay delivery of the steel strand can be formed, avoiding the intermittent pauses of traditional single-point stretching and significantly improving the threading efficiency.

Claims

1. A one-piece threading machine, characterized in that: The device includes a liftable support frame with a fixed base. Hydraulic through-type jacks are spaced apart along the length of the base. Each hydraulic through-type jack has a steel strand clamping mechanism at its telescopic end, and the clamping mechanism has a through hole communicating with the center of the hydraulic through-type jack. During operation, the clamping mechanisms at different positions alternately clamp the steel strand, and the hydraulic through-type jacks work alternately to complete the relay transport of the steel strand.

2. The integral threading machine according to claim 1, characterized in that: The support frame is a hydraulic scissor lift platform.

3. The integral threading machine according to claim 2, characterized in that: The support frame is equipped with rollers at its bottom.

4. The integral threading machine according to claim 3, characterized in that: The support frame is equipped with a positioning rod.

5. The integral threading machine according to claim 4, characterized in that: The positioning rod is provided with a positioning seat at its bottom.

6. The integral threading machine according to claim 1, characterized in that: Two hydraulic through-hole jacks are spaced apart on the base.

7. The integral threading machine according to claim 1, characterized in that: The steel strand clamping mechanism includes a steel strand clamping sleeve, on which a clamping jack is provided, and a space for placing the steel strand is formed between the clamping jack and the steel strand clamping sleeve.

8. The integral threading machine according to claim 7, characterized in that: The steel strand clamping sleeve is provided at both ends, and a slot is provided at the upper part. The telescopic end of the clamping jack is provided with a clamping plate, which can be adjusted radially along the slot.

9. The integral threading machine according to claim 7, characterized in that: The bottom of the steel strand clamping sleeve is provided with a sliding bracket, which slides in contact with the base.

10. The integral threading machine according to claim 9, characterized in that: The sliding bracket has rollers movably mounted at both ends, and the rollers slide on the base.

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