A tool for power-free take-up of bundled steel strands
Patent Information
- Application Number
- CN202522009187.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-18
AI Technical Summary
[0009]针对上述问题，本实用新型提供一种用于成束钢绞线无动力收线的工装，旨在解决现有技术中无动力收线装置在将钢绞线收纳到线盘过程中，拉力和夹持力冗余、油路控制复杂、收线速度慢及安装困难等问题
[0022]本实用新型提供的一种用于成束钢绞线无动力收线的工装，相对传统的连续提升千斤顶收线装置，取消了上、下夹持顶，控制油路由传统的3组油路分别控制提升千斤顶、上夹持顶和下夹持顶，改为1组油路控制动力缸，简化了控制油路，由原来的“上夹持顶紧锚→下夹持顶松锚→主顶伸缸→下夹持顶紧锚→上夹持顶松锚→主顶缩缸”简化为“动力缸伸出→动力缸回缩”，控制泵站不再需要编程及PLC，常规泵站即可完成收线，同时提高了收线速度。此外，还降低了工装的整体重量，动力缸还可以采用相对传统连续提升千斤顶张拉力较小的油缸，提高收放线作业时的拉力利用率。第一、第二夹持构件通过自锚固、无动力的方式替代传统的上、下夹持顶，能够避免夹持力冗余。
Smart Images
Figure CN224740600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel strand take-up technology, and in particular to a tooling for non-powered take-up of bundled steel strands. Background Technology
[0002] As the requirements for construction period and milestones in highway bridge construction gradually increase, the delivery time of cable-stayed cranes in bridge construction is also shortening year by year. As one of the key processes affecting the delivery of cable-stayed cranes, higher demands are placed on the manufacturing efficiency of the steel strand winding and unwinding device. Before leaving the factory, the steel strand needs to be wound into coils, which facilitates transportation and allows it to be directly connected to the crane on the construction site for lifting or lowering heavy objects. The device for winding the steel strand into coils before leaving the factory is generally divided into powered winding devices and unpowered winding devices. The powered winding device uses components such as a drive motor, a coil, and a continuous lifting jack. The drive motor is connected to the shaft of the coil, and the continuous lifting jack is used to wind the steel strand into the coil. The unpowered winding device mainly relies on the continuous lifting jack to push the steel strand through the guide frame into the winding coil. The tension generated by the bending of the steel strand makes it stick tightly to the outer ring of the winding coil.
[0003] In existing technologies, both powered and unpowered take-up devices require a continuous lifting jack and a lifting pump station to take up the steel strand into coils. Using such equipment has the following disadvantages:
[0004] 1. Tensile redundancy: The nominal tensile force of the continuous lifting top reaches 5000KN. When winding up the steel strand, each 150m diameter 17.8mm steel strand only requires 2.25KN. Taking the comb plate that can thread 33 steel strands as an example, the maximum force for winding up the steel strand is 74.25KN, which is only 1.485% of the nominal tensile force.
[0005] 2. Complex hydraulic circuit control: Normal operation of the continuous lifting jack requires three sets of hydraulic circuits to control the upper and lower clamping jacks and the lifting jack respectively, necessitating the use of a matching lifting pump station. The hydraulic circuit control follows this sequence: upper clamping jack tightens anchor → lower clamping jack loosens anchor → main jack extension cylinder → lower clamping jack tightens anchor → upper clamping jack loosens anchor → main jack retraction cylinder. This results in numerous cylinder movements and complex hydraulic circuit control.
[0006] 3. Clamping force redundancy: The clamping force of the clamping top is 6.28KN for each steel strand when it is working, and the clamping force required during the winding operation is 2.25KN, so the clamping force utilization rate is only 35%.
[0007] 4. Slow winding speed: Due to the large nominal tensile force, the continuous lifting jack moves slowly, about 20m / h. With a winding length of 150m, it takes 7.5 hours for one winding and unwinding device to complete the winding operation.
[0008] 5. Difficult installation of the supporting lifting top and lifting pump station: The lifting top weighs about 2t, and the supporting pump station weighs about 6t when full of oil. Utility Model Content
[0009] To address the aforementioned problems, this utility model provides a tooling for unpowered take-up of bundled steel strands, aiming to solve the problems of redundant tension and clamping forces, complex hydraulic circuit control, slow take-up speed, and difficult installation in existing unpowered take-up devices when taking the steel strands into the spool.
[0010] The present invention achieves the above objectives by adopting the following technical solution:
[0011] A tooling for unpowered take-up of bundled steel strands includes a support, a power cylinder, a base and a first clamping component mounting part respectively fixedly installed at both ends of the support, and a second clamping component mounting part slidably connected to the support between the base and the first clamping component mounting part; wherein, the power cylinder is used to drive the second clamping component mounting part to reciprocate between the base and the first clamping component mounting part; the base is provided with a through hole for the steel strand to pass through; the first clamping component mounting part and the second clamping component mounting part are respectively used to install the first clamping component and the second clamping component; the first clamping component and the second clamping component are arranged in parallel, each including a connecting anchor plate with a conical hole corresponding to the steel strand, a lifting clamping piece adapted to the conical hole, a baffle fixedly connected to the connecting anchor plate at the large end of the conical hole, and elastic members at both ends abutting against the baffle and the lifting clamping piece respectively; the large end of the conical hole is located at the end of the connecting anchor plate near the base.
[0012] The winding process of this technical solution is as follows: When the power cylinder extends, it drives the second clamping component to move towards the base. The rebound force of the elastic element in the second clamping component and the friction between the lifting clamp and the steel strand drive the lifting clamp into the corresponding conical hole, and clamp the steel strand as the second clamping component moves towards the base. At the same time, the friction between the steel strand and the lifting clamp of the first clamping component compresses the elastic element, causing the lifting clamp to disengage from the corresponding conical hole of the first clamping component. That is, the steel strand can move relative to the first clamping component towards the base to complete the winding. When the power cylinder extends to the top, the power cylinder retraction begins. During the process, the rebound force of the elastic element of the first clamping component and the friction between the lifting clamp and the steel strand drive the lifting clamp into the corresponding conical hole and clamp the steel strand to prevent it from moving. At the same time, the retraction of the power cylinder drives the second clamping component to move towards the mounting part of the first clamping component. The friction between the lifting clamp in the second clamping component and the steel strand compresses the elastic element, causing the lifting clamp to disengage from the corresponding conical hole. That is, the second clamping component can move relative to the steel strand towards the mounting part of the first clamping component to complete the retraction of the power cylinder. Repeating the above steps of extending and retracting the power cylinder completes the winding of the steel strand.
[0013] In this technical solution, compared to the traditional continuous lifting jack take-up device, the upper and lower clamping jacks are eliminated. The control hydraulic circuit, which traditionally uses three sets of hydraulic circuits to control the lifting jack, upper clamping jack, and lower clamping jack separately, is replaced by a single set of hydraulic circuits controlling the power cylinder. This simplifies the control hydraulic circuit, reduces the overall weight of the tooling, and facilitates installation. The hydraulic circuit control is simplified from the original "upper clamping jack tightens anchor → lower clamping jack loosens anchor → main jack extends cylinder → lower clamping jack tightens anchor → upper clamping jack loosens anchor → main jack retracts cylinder" to "power cylinder extends → power cylinder retracts." The control pump station no longer requires programming and PLC; a conventional pump station can complete the take-up, while also increasing the take-up speed. The power cylinder can use a hydraulic cylinder with a smaller tension force, improving the utilization rate of tension during take-up and unwinding operations. The first and second clamping components replace the traditional upper and lower clamping jacks with a self-anchoring, powerless method, avoiding redundant clamping force.
[0014] A further technical solution is that both the first clamping component mounting part and the second clamping component mounting part include mounting plates. Both the first and second clamping components include annular pressure plates. The annular pressure plates are fixedly connected to the corresponding connecting anchor plates at the small end of the conical hole. The mounting plates are provided with mounting holes to accommodate the corresponding connecting anchor plates. The inner diameter of the mounting holes is larger than the inner diameter of the annular pressure plates and smaller than the outer diameter of the annular pressure plates. The annular pressure plates are also fixedly connected to the mounting plates at the end furthest from the base. In this technical solution, the structure of the first and second clamping component mounting parts facilitates the installation and disassembly of the clamping components and is applicable to connecting anchor plates with different numbers of holes.
[0015] A further technical solution is that the bracket includes four support rods arranged in a rectangular shape, and the two ends of the support rods are fixedly connected to the base and the first clamping component mounting part, respectively.
[0016] A further technical solution is that the support rod passes through the second clamping component mounting part, and the second clamping component mounting part is provided with a sliding bearing that cooperates with the support rod.
[0017] A further technical solution is that the power cylinder includes a fixed end and a telescopic end, the fixed end is fixedly connected to the bracket, and the telescopic end is fixedly connected to the mounting part of the second clamping component.
[0018] A further technical solution is that the base is provided with a comb plate adapted to the steel strand.
[0019] A further technical solution is that the elastic element is a spring.
[0020] A further technical solution is that the base, the first clamping component mounting part, and the second clamping component mounting part are provided with lifting lugs on the same side wall.
[0021] The beneficial effects of this utility model are:
[0022] This utility model provides a tooling for unpowered take-up of bundled steel strands. Compared to traditional continuous lifting jack take-up devices, it eliminates the upper and lower clamping tops. The control oil circuit, which traditionally uses three sets of oil circuits to control the lifting jack, upper clamping top, and lower clamping top separately, is replaced by a single set of oil circuits controlling the power cylinder. This simplifies the control oil circuit from the original "upper clamping top tightens anchor → lower clamping top loosens anchor → main jack extends cylinder → lower clamping top tightens anchor → upper clamping top loosens anchor → main jack retracts cylinder" to "power cylinder extends → power cylinder retracts". The control pump station no longer requires programming and PLC; a conventional pump station can complete the take-up, while also increasing the take-up speed. In addition, it reduces the overall weight of the tooling, and the power cylinder can use a cylinder with a smaller tension force than the traditional continuous lifting jack, improving the utilization rate of tension force during take-up and unwinding operations. The first and second clamping components replace the traditional upper and lower clamping tops through self-anchoring and unpowered operation, avoiding redundant clamping force. Attached Figure Description
[0023] Figure 1 The diagram shows the tooling structure for unpowered take-up of bundled steel strands as described in this utility model.
[0024] Figure 2 Here is a schematic diagram of the structure of the first clamping component of this utility model.
[0025] In the picture:
[0026] 1. Bracket; 2. Base; 21. Comb plate; 3. First clamping component mounting part; 30. First mounting plate; 31. Connecting anchor plate; 32. Lifting clamp; 33. Baffle; 34. Annular pressure plate; 4. Second clamping component mounting part; 40. Second mounting plate; 41. Sliding bearing; 5. Power cylinder; 51. Fixed end; 52. Telescopic end. Detailed Implementation
[0027] The following is in conjunction with the appendix Figures 1 to 2 The present invention will be described in detail below with specific embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0028] like Figures 1 to 2As shown, this embodiment provides a tooling for unpowered take-up of bundled steel strands, including a bracket 1, a power cylinder 5, a base 2 and a first clamping member mounting part 3 respectively fixedly installed at both ends of the bracket 1, and a second clamping member mounting part 4 slidably connected to the bracket between the base 2 and the first clamping member mounting part 3; wherein, the power cylinder 5 is used to drive the second clamping member mounting part 4 to reciprocate between the base 2 and the first clamping member mounting part 3; the base 2 is provided with a through hole for passing through the steel strand; the first clamping member mounting part 3 and the second clamping member mounting part 4 are respectively used to fix and install the first clamping member and the second clamping member; the first clamping member and the second clamping member have the same structure and are arranged in parallel, such as Figure 2 As shown, taking the first clamping component as an example, the first clamping component includes a connecting anchor plate 31 with a conical hole corresponding to the steel strand, a lifting clamp 32 adapted to the conical hole, a baffle 33 fixedly connected to the connecting anchor plate 31 at the large end of the conical hole, and an elastic member with both ends abutting against the baffle 33 and the lifting clamp 32 respectively; the large end of the conical hole is located at the end of the connecting anchor plate 31 near the base 2.
[0029] Specifically, both the first clamping component mounting part 3 and the second clamping mounting part 4 include mounting plates. Both the first clamping component and the second clamping component include annular pressure plates. Taking the first clamping component mounting part 3 and the first clamping component as an example, the annular pressure plate 34 is fixedly connected to the connecting anchor plate 31 of the first clamping component at the small end of the conical hole. The first mounting plate 30 is provided with a mounting hole for accommodating the connecting anchor plate 31. The inner diameter of the mounting hole is larger than the inner diameter of the annular pressure plate 34 and smaller than the outer diameter of the annular pressure plate 34. The annular pressure plate 34 is also fixedly connected to the first mounting plate 30 at the end away from the base 2. During installation, the first clamping component is passed through the mounting hole along the wire take-up direction. That is, the first clamping component passes through the mounting hole from one end of the baffle 33 until the annular pressure plate 34 is engaged with the end face of the first mounting plate 30 away from the base 2. Then, the annular pressure plate 34 and the first mounting plate 30 are fixedly connected by bolts. It is worth noting that the inner diameter of the first mounting plate 30 can accommodate bundled steel strands.
[0030] The bracket 1 includes four support rods arranged in a rectangular shape. Each support rod has a threaded section and a limiting protrusion at both ends. The base 2 and the first mounting plate 30 are respectively provided with through holes that cooperate with the support rods. The threaded sections at both ends of the support rods pass through the corresponding through holes until the limiting protrusion cooperates with one end face of the through hole for limitation. Then, a nut cooperates with the threaded section to the other end face of the through hole, so that the base 2 and the first clamping component mounting part 3 are fixedly connected to the two ends of the bracket 1 respectively. The second clamping component mounting part 4 is provided with a through hole on the second mounting plate 40 that cooperates with the support rod. The through hole is in clearance fit with the support rod.
[0031] The power cylinder 5 is specifically a hydraulic cylinder, including a fixed end 51 and a telescopic end 52 that can reciprocate relative to the fixed end 51 by hydraulic control. The fixed end 51 is fixedly connected to the bracket 1 by a mounting bracket at one end near the first clamping component mounting part 3. The telescopic end 52 is fixedly connected to the second mounting plate 40. The extension of the telescopic end 52 drives the second clamping component mounting part 4 to move towards the base, and the retraction of the telescopic end 52 drives the second clamping component mounting part 4 to move towards the first clamping component mounting part 3.
[0032] The elastic element in the first and second clamping mechanisms is specifically a spring, which is used to apply a restoring force to lift the clamping piece into the corresponding conical hole.
[0033] The winding process in this embodiment is as follows: When the telescopic end 52 of the power cylinder 5 extends, it drives the second clamping member to move towards the base 2. The spring's rebound force in the second clamping member and the friction between the lifting clip and the steel strand drive the lifting clip into the corresponding conical hole, and the steel strand is clamped as the second clamping member moves towards the base 2. At the same time, the friction between the steel strand and the lifting clip 32 of the first clamping member compresses the spring, causing the lifting clip 32 to disengage from the corresponding conical hole of the first clamping member. That is, the steel strand can move relative to the first clamping member towards the base 2 to complete the winding. When the telescopic end 52 extends to the top, the retraction of the telescopic end 52 begins. During the process, the spring force of the first clamping component and the friction between the lifting clamp 32 and the steel strand drive the lifting clamp 32 into the corresponding conical hole and clamp the steel strand to prevent the steel strand from moving. At the same time, the retraction of the telescopic end 52 drives the second clamping component to move towards the mounting part 3 of the first clamping component. The friction between the lifting clamp in the second clamping component and the steel strand compresses the elastic element, causing the lifting clamp to disengage from the corresponding conical hole. That is, the second clamping component can move relative to the steel strand towards the mounting part 3 of the first clamping component to complete the retraction of the telescopic end 52. Repeating the above steps of the telescopic end 52 extending and retracting relative to the fixed end 51 can complete the steel strand winding.
[0034] This embodiment of the unpowered cable reeling fixture, compared to the traditional continuous lifting jack cable reeling device, eliminates the upper and lower clamping tops. The control hydraulic circuit, which traditionally uses three separate hydraulic circuits to control the lifting jack, upper clamping top, and lower clamping top, is replaced by a single hydraulic circuit controlling the power cylinder 5. This simplifies the control hydraulic circuit, reduces the overall weight of the fixture, and facilitates installation. The hydraulic circuit control is simplified from the original "upper clamping top tightens anchor → lower clamping top loosens anchor → main jack extension cylinder → lower clamping top tightens anchor → upper clamping top loosens anchor → main jack retraction cylinder" to "extension end 52 extends → extension end 52 retracts." The control pump station no longer requires programming or a PLC; a conventional pump station can complete the cable reeling, while also increasing the reeling speed. The power cylinder 5 can use a hydraulic cylinder with lower tension force, improving the utilization rate of tension during cable reeling and unloading operations. The first and second clamping components replace the traditional upper and lower clamping tops through self-anchoring and unpowered operation, avoiding redundant clamping force.
[0035] The above embodiments exemplarily illustrate the specific structure and connection method of components such as the first clamping member mounting part 3, the second clamping member mounting part 4, the bracket 1, the power cylinder 5, and the elastic element. In other embodiments or practical applications, other methods can be used instead, for example:
[0036] Regarding the first clamping component mounting part 3 and the second clamping component mounting part 4, the mounting part can also be a corresponding connecting anchor plate, which can be directly connected to the support rod by the connecting anchor plate. The sliding method between the second clamping component mounting part 4 and the bracket 1 can also be replaced by a matching slide rail and slide groove. Regarding the bracket 1, it can also be composed of support rods distributed in a triangular or polygonal pattern. Regarding the connection method of the power cylinder 5, its fixed end 51 can also be fixedly connected to the first clamping component mounting part 3 to achieve a fixed connection with the bracket 1, or the fixed end 51 can be fixedly connected to a component at one end of the base 2 to achieve a fixed connection with the bracket 1. In this method, when the telescopic end 52 retracts, it drives the second clamping component to retract the steel strand. The power cylinder 5 can also be a cylinder, which drives the telescopic end 52 to telescopically move by controlling the air pressure. The elastic element can also be replaced by an elastic element such as a rubber block.
[0037] In another embodiment, in order to facilitate the sliding of the second clamping member mounting part 4 along the support rod, based on the above embodiment, the second mounting plate 40 is provided with a sliding bearing 41 that cooperates with the support rod.
[0038] In another embodiment, based on the above embodiment, the base 2 is provided with a comb plate 21 adapted to the steel strand.
[0039] In another embodiment, based on the above embodiment, the base 2, the first clamping component mounting part 3, and the second clamping component mounting part 4 are provided with lifting lugs on the same side wall.
[0040] This utility model provides a tooling for unpowered take-up of bundled steel strands. Compared to traditional continuous lifting jack take-up devices, it eliminates the upper and lower clamping tops. The control oil circuit, which traditionally uses three sets of oil circuits to control the lifting jack, upper clamping top, and lower clamping top separately, is replaced by a single set of oil circuits controlling the power cylinder 5. This simplifies the control oil circuit from the original "upper clamping top tightens anchor → lower clamping top loosens anchor → main jack extends cylinder → lower clamping top tightens anchor → upper clamping top loosens anchor → main jack retracts cylinder" to "power cylinder 5 extends → power cylinder 5 retracts". The control pump station no longer requires programming and PLC; a conventional pump station can complete the take-up, while also increasing the take-up speed. In addition, it reduces the overall weight of the tooling. The power cylinder 5 can also use a cylinder with a smaller tension force than the traditional continuous lifting jack, improving the utilization rate of tension force during take-up and unwinding operations. The first and second clamping components replace the traditional upper and lower clamping tops through self-anchoring and unpowered operation, avoiding redundant clamping force.
Claims
1. A tooling for unpowered take-up of bundled steel strands, characterized in that, It includes a bracket, a power cylinder, a base and a first clamping component mounting part respectively fixedly installed at both ends of the bracket, and a second clamping component mounting part that is slidably connected to the bracket between the base and the first clamping component mounting part; The power cylinder is used to drive the second clamping component mounting part to slide back and forth between the base and the first clamping component mounting part; the base is provided with a through hole for the steel strand to pass through; the first clamping component mounting part and the second clamping component mounting part are respectively used to install the first clamping component and the second clamping component. The first clamping component and the second clamping component are arranged in parallel, each including a connecting anchor plate with a conical hole corresponding to the steel strand, a lifting clamping piece adapted to the conical hole, a baffle fixedly connected to the connecting anchor plate at the large end of the conical hole, and an elastic element at both ends abutting against the baffle and the lifting clamping piece respectively; the large end of the conical hole is located at the end of the connecting anchor plate near the base.
2. A tool for unpowered take-up of bundled steel strands according to claim 1, characterized in that, Both the first clamping member mounting part and the second clamping member mounting part include mounting plates. Both the first clamping member and the second clamping member include annular pressure plates. The annular pressure plates are fixedly connected to the corresponding connecting anchor plates at the small end of the conical hole. The mounting plate is provided with mounting holes for accommodating corresponding connecting anchor plates. The inner diameter of the mounting holes is larger than the inner diameter of the annular pressure plate and smaller than the outer diameter of the annular pressure plate. The annular pressure plate is also fixedly connected to the mounting plate at the end away from the base.
3. The tooling for unpowered take-up of bundled steel strands according to claim 1, characterized in that, The bracket includes four support rods arranged in a rectangular shape, with both ends of the support rods fixedly connected to the base and the mounting part of the first clamping component, respectively.
4. A tool for unpowered take-up of bundled steel strands according to claim 3, characterized in that, The support rod passes through the second clamping component mounting part, and the second clamping component mounting part is provided with a sliding bearing that cooperates with the support rod.
5. A tool for unpowered take-up of bundled steel strands according to claim 1, characterized in that, The power cylinder includes a fixed end and a telescopic end. The fixed end is fixedly connected to the bracket, and the telescopic end is fixedly connected to the mounting part of the second clamping component.
6. A tool for unpowered take-up of bundled steel strands according to claim 1, characterized in that, The base is equipped with a comb plate that is compatible with the steel strand.
7. The tooling for unpowered take-up of bundled steel strands according to claim 1, characterized in that, The elastic element is a spring.
8. A tool for unpowered take-up of bundled steel strands according to claim 1, characterized in that, The base, the first clamping component mounting part, and the second clamping component mounting part are provided with lifting lugs on the same side wall.