A counterweight lifting system with a sliding mode equipment roundness constraint control

Abstract

The application provides a counterweight lifting system for slide form equipment true roundness constraint control, which comprises a pull rope, a tension sensor, a center disc and a counterweight mechanism; the pull rope is used for being connected with a lifting frame and the center disc respectively, a plurality of pull ropes are arranged in a circumferential array around the center disc; the tension sensor is connected with the pull rope, and the tension sensor is used for detecting the tension on the pull rope; the counterweight mechanism is connected with the center disc, and the counterweight mechanism is used for tensioning the pull rope. The counterweight mechanism comprises a suspension cable and a counterweight block, the suspension cable is connected with the center disc, and the counterweight block is connected with the suspension cable. The application can facilitate the adjustment of the tensioning degree of the pull rope.

Description

Technical Field

[0001] This application relates to the technical field of slipform construction, and in particular to a counterweight lifting system for slipform equipment with roundness constraint control. Background Technology

[0002] Slipform construction is a construction technique for cast-in-place concrete engineering. Compared with conventional construction methods, slipform construction has the advantages of fast construction speed, high degree of mechanization, saving of materials and labor required for formwork and scaffolding, and flexible assembly and reusability. It is often used in reinforced concrete cylindrical structures such as bridge piers and chimneys.

[0003] Slipform equipment in slipform construction includes climbing rods, climbing devices, lifting frames, and formwork. The climbing devices ascend the climbing rods, which in turn lift the formwork via the lifting frames. Roundness control is a core indicator for ensuring the geometric accuracy of cylindrical structures. In traditional slipform construction, the roundness of the cylindrical structure is typically controlled by a central disc. This central disc is connected to the lifting frame via multiple radially distributed tension ropes, and tensioning these ropes applies tension to the slipform equipment.

[0004] After the slipform equipment has climbed, the tension of the pull rope needs to be adjusted in a timely manner according to the deformation of the slipform equipment in order to constrain and control the roundness of the slipform equipment. However, the center plate will rise with the slipform equipment, which can easily lead to the problem of inconvenience in adjusting the tension of the pull rope. Summary of the Invention

[0005] In order to facilitate the adjustment of the tension of the pull rope and timely control of the roundness of the cylindrical structure, this application provides a counterweight lifting system for roundness constraint control of slipform equipment.

[0006] This application provides a counterweight lifting system for controlling the roundness constraint of a sliding formwork device, which adopts the following technical solution: A counterweight lifting system for roundness constraint control of a sliding formwork device includes a lifting frame, pull ropes, a tension sensor, a central plate, and a counterweight mechanism. The pull ropes are connected to both the lifting frame and the central plate, and multiple pull ropes are arranged in a circular array around the central plate. The tension sensor is connected to the pull ropes and is used to detect the tension on the pull ropes. The counterweight mechanism is connected to the central plate and is used to tighten the pull ropes.

[0007] By adopting the above technical solution, the counterweight mechanism is connected to the central plate and tightens the pull ropes. Multiple pull ropes are arranged in a circular array around the central plate, which can apply constraint tension to the lifting frame from multiple directions, thereby effectively adjusting the deformation of the slipform equipment and ensuring the roundness of the cylindrical structure. At the same time, by installing tension sensors on the pull ropes, the stress state of each pull rope can be detected in real time.

[0008] Optionally, the counterweight mechanism includes a suspension cable and a counterweight block, wherein the suspension cable is connected to the central disk and the counterweight block is connected to the suspension cable.

[0009] By adopting the above technical solution, which uses a suspension cable to suspend the counterweight, the structure is simple, low-cost, and easy to implement. The counterweight is suspended at a certain height above the ground by the suspension cable, allowing construction workers to directly add or remove the number of counterweights from the ground without needing to climb to heights. This enables quick adjustment of the tension of the rope, reducing operational difficulty and construction safety risks, and improving the convenience of on-site adjustments.

[0010] Optionally, the counterweight mechanism includes a counterweight box and a counterweight adjustment component. The counterweight box is connected to the pull rope, and the counterweight adjustment component is used to inject water into the counterweight box.

[0011] By adopting the above technical solution, the counterweight weight can be adjusted continuously and precisely by injecting water into the counterweight box. This allows for more refined adjustment of the rope tension, thereby enabling more accurate control of the roundness of the slipform equipment. Furthermore, using water as the counterweight medium is widely available and inexpensive, and the adjustment process eliminates the need for manual handling of heavy objects, reducing labor intensity.

[0012] Optionally, the counterweight adjustment assembly includes a water inlet pipe and a water inlet on / off valve, wherein the water inlet pipe is connected to the counterweight box; the water inlet on / off valve is installed on the water inlet pipe and is used to open and close the water inlet pipe.

[0013] By adopting the above technical solution, and through the cooperation of the water inlet pipe and the water inlet on / off valve, a water pump connected to the water inlet pipe can pump water into the counterweight box, thereby increasing the weight of the counterweight box. The on / off valve has a simple structure and reliable control, allowing construction personnel to open the water inlet in a timely and accurate manner to increase the counterweight based on the detection data of the tension sensor, thus quickly responding to the deformation of the slipform equipment.

[0014] Optionally, the counterweight adjustment assembly further includes a water outlet pipe and a water outlet on / off valve, wherein the water outlet pipe is connected to the counterweight box; the water outlet on / off valve is installed on the water outlet pipe and is used to open and close the water outlet pipe.

[0015] By adopting the above technical solution, in addition to configuring the water inlet pipe, an outlet pipe and an outlet valve are added to the counterweight box, so that the counterweight box can increase its weight by adding water and decrease its weight by draining water, thus realizing bidirectional adjustment of the counterweight.

[0016] Optionally, a guide wheel is rotatably connected to the central disc, the pull rope is wound around the guide wheel, and the end of the pull rope is connected to the counterweight box.

[0017] By adopting the above technical solution, and by setting guide wheels on the central plate, winding the pull rope around the guide wheels, and connecting the end of the pull rope to the counterweight box, the lifting and lowering of the counterweight box can be directly converted into adjustment of the tension of the pull rope. The rotational connection of the guide wheels reduces frictional loss between the pull rope and the central plate, extends the service life of the pull rope, and at the same time allows the weight of the counterweight box to be transferred to the tension of the pull rope more smoothly and efficiently.

[0018] Optionally, a guide assembly is provided on the central plate, the guide assembly is connected to the counterweight box, and the guide assembly guides the counterweight box to move up and down.

[0019] By adopting the above technical solution, the guide component guides and constrains the lifting and lowering movement of the counterweight box, reducing horizontal deviation or swaying during the lifting process and ensuring that the counterweight box rises and falls smoothly along the predetermined trajectory. This not only guarantees the stability of force transmission between the counterweight box and the pull rope, but also improves the tension fluctuation of the pull rope caused by the swaying of the counterweight box, thereby improving the stability of the roundness control.

[0020] Optionally, the guide assembly includes a guide rail and a sliding seat, the guide rail being connected to the central disk, the sliding seat being slidably connected to the guide rail, and the counterweight box being connected to the sliding seat.

[0021] By adopting the above technical solution, a sliding guide structure combining a guide rail and a sliding seat is used, resulting in a simple structure and stable operation. When the counterweight box rises or falls due to weight changes caused by water injection or drainage, the sliding seat can slide smoothly along the guide rail, effectively guiding the lifting and lowering movement of the counterweight box.

[0022] Optionally, multiple guide components and multiple counterweight boxes are provided. The multiple guide components are arranged in a circular array around the central disk. Each of the multiple guide components corresponds to a multiple of the multiple counterweight boxes, and each of the multiple counterweight boxes corresponds to a multiple of the pull ropes.

[0023] By adopting the above technical solution, each pull rope has independent counterweight adjustment capability. The values ​​detected by each tension sensor reflect the stress condition of the pull rope. When the tension of some pull ropes becomes abnormal, the tension of the abnormal pull rope can be adjusted individually. Construction personnel can adjust the tension of the pull ropes in a timely manner according to the deformation of the slipform equipment, thereby achieving precise and targeted control of the deformation of the slipform equipment in all directions, and improving the accuracy and reliability of the roundness constraint control.

[0024] Optionally, the central disc is connected to a cover, the cover is positioned over the outside of the guide assembly, and the guide rail is connected to the cover.

[0025] By adopting the above technical solution, the cover is placed on the outside of the guide assembly. On the one hand, it can strengthen the connection between the guide slide rail and the center plate, and improve the structural stability and load-bearing capacity. On the other hand, the cover can protect the guide assembly and the counterweight box from the wind, reduce the impact of wind on the height position of the counterweight box, improve the swaying and tension fluctuation of the counterweight box caused by wind load, thereby ensuring the stability of the tension of the pull rope and further improving the accuracy of the roundness control.

[0026] In summary, this application includes at least one of the following beneficial effects: 1. Construction workers can add or remove counterweights on the suspension cables from the ground to adjust the tension on the slipform equipment. The tension sensor can detect the tension of the cable. 2. Water can be added to or drained from the counterweight box through the inlet and outlet pipes, enabling continuous, bidirectional and precise adjustment of the counterweight, making the adjustment of the tension of the pull rope more flexible and precise, and able to respond promptly to the deformation of the slipform equipment. 3. By guiding and constraining the lifting and lowering of the counterweight box through the guide components, the stability of the counterweight box operation is ensured, thereby effectively guaranteeing the reliability of the roundness control of the cylindrical structure. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the sliding mold equipment and counterweight lifting system in Embodiment 1 of this application; Figure 2 This is a top view of the sliding mold equipment and counterweight lifting system of Embodiment 1 of this application; Figure 3 This is a schematic diagram of the counterweight lifting system of Embodiment 2 of this application; Figure 4 This is a cross-sectional structural schematic diagram of the counterweight lifting system in Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Pull rope; 2. Center plate; 3. Tension sensor; 4. Guide wheel; 5. Counterweight mechanism; 51. Suspension cable; 52. Counterweight block; 53. Counterweight box; 54. Air pressure balance port; 55. Counterweight adjustment assembly; 551. Water inlet pipe; 552. Water outlet pipe; 553. Water inlet valve; 554. Water outlet valve; 6. Guide assembly; 61. Guide rail; 62. Sliding seat; 7. Cover; 100. Lifting frame; 101. Climbing rod; 102. Climber; 103. Template. Detailed Implementation

[0029] The following combination Figures 1 to 4 This application will be described in further detail.

[0030] Example 1:

[0031] Embodiment 1 of this application provides a counterweight lifting system for roundness constraint control of sliding mold equipment.

[0032] refer to Figure 1 and Figure 2 A counterweight lifting system for roundness constraint control of slipform equipment includes a pull rope 1, a tension sensor 3, a central plate 2, and a counterweight mechanism 5. The lifting frame 100 rises vertically along the climbing rod 101 under the drive of the climber 102, thereby synchronously lifting the template 103. One end of the pull rope 1 is fixedly connected to the lifting frame 100, and the other end is fixedly connected to the central plate 2. The central plate 2 is located at the center of the cylindrical structure and has a disc-shaped structure.

[0033] refer to Figure 1 and Figure 2 The pull rope 1 can be made of steel wire rope or steel strand, and multiple pull ropes 1 are arranged in a circular array around the central disc 2. By tensioning each pull rope 1, radial constraint forces can be applied to the lifting frame 100 from multiple directions, thereby adjusting the geometric deformation of the slipform equipment and ensuring the roundness of the cylindrical structure. The tension sensor 3 is installed on the pull rope 1 and is used to detect the tension on the pull rope 1.

[0034] refer to Figure 1 and Figure 2 The counterweight mechanism 5 includes a suspension cable 51 and a counterweight block 52. The suspension cable 51 can be made of the same steel wire rope as the pull rope 1. The upper end of the suspension cable 51 is fixedly connected to the connecting lug on the lower surface of the central disc 2, and the lower end of the suspension cable 51 hangs naturally. The counterweight block 52 can be a block-shaped object with a certain mass, such as a precast concrete block or a cast iron block. The counterweight block 52 usually has lifting holes or is connected to lifting rings, and is connected to the lower end of the suspension cable 51 through a shackle. The suspension cable 51 has a certain length, allowing the counterweight block 52 to hang at a certain height above the ground, thus facilitating the construction personnel to directly add or remove the number of counterweight blocks 52 on the ground to adjust the tension of the pull rope 1.

[0035] The implementation principle of the counterweight lifting system for the true roundness constraint control of the slipform equipment in Embodiment 1 of this application is as follows: the construction personnel can add or remove counterweight blocks 52 on the suspension cable 51 on the ground, thereby adjusting the tension on the slipform equipment. The tension sensor 3 can detect the tension of the pull rope 1.

[0036] Example 2:

[0037] Embodiment 2 of this application provides a counterweight lifting system for roundness constraint control of sliding mode equipment. The difference between Embodiment 2 and Embodiment 1 is as follows: refer to Figure 3 and Figure 4The counterweight mechanism 5 includes a counterweight box 53 and a counterweight adjustment assembly 55. The counterweight box 53 is a box structure welded from steel plates. In one embodiment, the counterweight box 53 is directly connected to the central plate 2 via a connecting cable. In another embodiment, a guide wheel 4 is rotatably connected to the central plate 2, and a pull rope 1 is wound around the guide wheel 4. The end of the counterweight box 53 is fixedly connected to the pull rope 1.

[0038] refer to Figure 3 and Figure 4 The counterweight adjustment assembly 55 includes a water inlet pipe 551 and a water inlet valve 553. The water inlet pipe 551 can be made of PVC pipe or rubber hose, etc. One end of the water inlet pipe 551 is connected to an external water pump, and the other end of the water inlet pipe 551 is connected to the counterweight box 53. The water inlet valve 553 is installed on the water inlet pipe 551 and is used to open and close the water inlet pipe 551. The water inlet valve 553 can be a solenoid valve or an electric valve, etc. When it is necessary to increase the weight of the counterweight box 53, the water inlet valve 553 is opened, and water is pumped into the counterweight box 53 from the water inlet pipe 551 by the external water pump. When the water volume in the counterweight box 53 reaches the target value, the water inlet valve 553 is closed. By injecting water into the counterweight box 53, the counterweight can be continuously and precisely adjusted, making the adjustment of the tension of the pull rope 1 more refined. The top of the counterweight box 53 is also equipped with an air pressure balance port 54, which is connected to the atmosphere, so as to achieve air pressure balance inside and outside the box when water is added or discharged into the counterweight box 53, ensuring smooth water inlet and outlet.

[0039] refer to Figure 3 and Figure 4 The counterweight adjustment assembly 55 also includes an outlet pipe 552 and an outlet valve 554. The outlet pipe 552 can be made of the same material as the inlet pipe 551 and is connected to the counterweight box 53. The outlet valve 554 is installed on the outlet pipe 552 and is used to open and close the outlet pipe 552. When it is necessary to reduce the weight of the counterweight box 53, the outlet valve 554 is opened and the inlet valve 553 is closed, and the water in the counterweight box 53 is discharged from the outlet pipe 552 under the action of gravity. Through the cooperation of the inlet pipe 551 and the outlet pipe 552, bidirectional adjustment of the counterweight is achieved, improving the flexibility and accuracy of the roundness control.

[0040] refer to Figure 3 and Figure 4A guide assembly 6 is provided on the central disk 2, which includes a guide rail 61 and a sliding seat 62. The guide rail 61 is vertically fixed to the lower surface of the central disk 2. The sliding seat 62 is slidably connected to the guide rail 61 and can slide up and down along the length of the guide rail 61. The counterweight box 53 is fixedly connected to the sliding seat 62 by bolts or welding. When the counterweight box 53 rises or falls due to weight changes caused by water injection, the sliding seat 62 slides smoothly along the guide rail 61, effectively guiding the rising and falling movement of the counterweight box 53, reducing horizontal offset or swaying of the counterweight box 53 during the rising and falling process, ensuring the stability of force transmission between the counterweight box 53 and the pull rope 1, improving the tension fluctuation of the pull rope 1 caused by the swaying of the counterweight box 53, and thus improving the stability of the roundness control.

[0041] refer to Figure 3 and Figure 4 Multiple guide components 6 and counterweight boxes 53 are provided. The multiple guide components 6 are arranged in a circular array around the central disk 2. Each of the multiple guide components 6 corresponds to a multiple counterweight box 53, and each of the multiple counterweight boxes 53 corresponds to a multiple pull rope 1. Each counterweight box 53 independently corresponds to a pull rope 1, so that each pull rope 1 has independent counterweight adjustment capability.

[0042] refer to Figure 3 and Figure 4 A cover 7 is fixedly connected to the bottom side of the central plate 2, and the cover 7 covers the outside of the guide assembly 6. The cover 7 is a cylindrical structure, and the guide rail 61 can be fixedly connected to the inner wall of the cover 7 by welding. The cover 7 can strengthen the connection between the guide rail 61 and the central plate 2, improve the structural stability and load-bearing capacity of the entire counterweight lifting system; on the other hand, the cover 7 can protect the guide assembly 6 and the counterweight box 53 from the wind, reduce the impact of wind on the height position of the counterweight box 53, improve the swaying and tension fluctuation of the counterweight box 53 caused by wind load, thereby ensuring the stability of the tension of the pull rope 1 and further improving the accuracy of the roundness control.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A counterweight lifting system for roundness constraint control of sliding mode equipment, characterized in that: It includes a pull rope (1), a tension sensor (3), a central disk (2), and a counterweight mechanism (5); the pull rope (1) is used to connect to the lifting frame (100) and the central disk (2) respectively, and multiple pull ropes (1) are provided, and the multiple pull ropes (1) are arranged in a circular array around the central disk (2); the tension sensor (3) is connected to the pull rope (1), and the tension sensor (3) is used to detect the tension on the pull rope (1); the counterweight mechanism (5) is connected to the central disk (2), and the counterweight mechanism (5) is used to tighten the pull rope (1).

2. The counterweight lifting system for roundness constraint control of a sliding formwork equipment according to claim 1, characterized in that: The counterweight mechanism (5) includes a suspension cable (51) and a counterweight block (52). The suspension cable (51) is connected to the central disk (2), and the counterweight block (52) is connected to the suspension cable (51).

3. The counterweight lifting system for roundness constraint control of a sliding formwork equipment according to claim 1, characterized in that: The counterweight mechanism (5) includes a counterweight box (53) and a counterweight adjustment component (55). The counterweight box (53) is connected to the pull rope (1), and the counterweight adjustment component (55) is used to inject water into the counterweight box (53).

4. The counterweight lifting system for roundness constraint control of a sliding formwork equipment according to claim 3, characterized in that: The counterweight adjustment assembly (55) includes a water inlet pipe (551) and a water inlet valve (553). The water inlet pipe (551) is connected to the counterweight box (53). The water inlet valve (553) is installed on the water inlet pipe (551) and is used to open and close the water inlet pipe (551).

5. A counterweight lifting system for roundness constraint control of a sliding formwork device according to claim 4, characterized in that: The counterweight adjustment assembly (55) further includes a water outlet pipe (552) and a water outlet on / off valve (554). The water outlet pipe (552) is connected to the counterweight box (53). The water outlet on / off valve (554) is installed on the water outlet pipe (552) and is used to open and close the water outlet pipe (552).

6. The counterweight lifting system for roundness constraint control of a sliding formwork equipment according to claim 3, characterized in that: A guide wheel (4) is rotatably connected to the central disc (2), and the pull rope (1) is wound around the guide wheel (4). The end of the pull rope (1) is connected to the counterweight box (53).

7. A counterweight lifting system for roundness constraint control of a sliding formwork device according to claim 6, characterized in that: A guide component (6) is provided on the central plate (2). The guide component (6) is connected to the counterweight box (53). The guide component (6) guides the counterweight box (53) to move up and down.

8. A counterweight lifting system for roundness constraint control of a sliding formwork device according to claim 7, characterized in that: The guide assembly (6) includes a guide rail (61) and a sliding seat (62). The guide rail (61) is connected to the central disk (2), the sliding seat (62) is slidably connected to the guide rail (61), and the counterweight box (53) is connected to the sliding seat (62).

9. A counterweight lifting system for roundness constraint control of a sliding formwork device according to claim 8, characterized in that: Multiple guide components (6) and multiple counterweight boxes (53) are provided. Multiple guide components (6) are arranged in a circular array around the central disk (2). Multiple guide components (6) correspond one-to-one with multiple counterweight boxes (53). Multiple counterweight boxes (53) correspond one-to-one with multiple pull ropes (1).

10. A counterweight lifting system for roundness constraint control of a sliding formwork device according to claim 9, characterized in that: The central disk (2) is connected to a cover (7), which covers the outside of the guide assembly (6), and the guide slide rail (61) is connected to the cover (7).

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