Steel strand threading control device and system
By designing a steel strand thread thread control device, the sensors and controllers are used to achieve accurate control of thread thread length, solving the problems of low efficiency, large labor consumption and slow response in traditional thread threading methods, and improving construction efficiency and accuracy.
Patent Information
- Application Number
- CN202421547123.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In prestressed construction, the traditional thread threading method of steel stranding is low efficiency, consumes a lot of manpower, and does not respond quickly enough, making it difficult to accurately control the threading length.
A steel strand threading control device is designed, including a threading sleeve, a sensor and a controller. The threading sleeve is equipped with a threading port and a sensor. The sensor detects the position where the steel strand passes and sends a signal. The controller issues control instructions according to the signal to control the beam-piercing machine to stop working, thereby achieving accurate control of the threading length.
Through this device, it can significantly save manpower, improve threading efficiency, and respond more quickly, ensuring accurate control of threading length.
Smart Images
Figure CN222744815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering construction, in particular to a steel strand threading control device and system. Background Art
[0002] In prestressed construction, such as the prefabrication of large railway box girders, prestressed steel strand threading is a basic process. Prestressed steel strand threading is the process of using a steel strand threading machine to pass multiple steel strands through the holes at one end of the box girder and out from the other end to facilitate tensioning and anchoring.
[0003] Traditionally, two workers are required to work together when threading prestressed steel strands. One worker controls the threading machine on one side of the beam end, and the other worker monitors the threading length of the steel strands in real time on the other side of the beam end. The two workers communicate through walkie-talkies to control the threading length.
[0004] However, the above-mentioned threading method is inefficient, consumes a lot of manpower, and the slow response makes it difficult to accurately control the threading length. Utility Model Content
[0005] The utility model provides a steel strand threading control device and system, which are used to solve the defects of the prior art that the steel strand threading efficiency is low, the manpower consumption is large, and the response is not fast enough, which easily leads to the difficulty in accurately controlling the threading length. The utility model has the advantages of less manpower consumption and higher efficiency, and can respond quickly to achieve more accurate control of the threading length.
[0006] The utility model provides a steel strand threading control device, comprising:
[0007] A threading sleeve, one end of which is provided with a threading opening, the threading opening being adapted to be coaxially corresponding to the threading hole in the anchor hole at the end of the beam, so as to allow the steel strand passing through the threading hole to pass into the threading sleeve;
[0008] A sensor, arranged on the threading sleeve, for detecting whether a steel strand passes through a first position at a set distance from the threading port, and generating and sending a detection signal;
[0009] The controller is connected to the sensor for receiving the detection signal and issuing a control instruction to control the stranding machine to stop working when it is determined that the steel strand passes through the first position.
[0010] According to a steel strand threading control device provided by the utility model, the threading sleeve comprises a first sleeve, the threading opening is arranged at the end of the first sleeve, and the inner diameter of the first sleeve gradually expands toward the threading opening.
[0011] According to a steel strand threading control device provided by the utility model, the threading sleeve also includes a second sleeve with a straight tube structure, the second sleeve is coaxially connected to an end of the first sleeve away from the threading port, and the second sleeve is conductively connected to the first sleeve.
[0012] According to the steel strand threading control device provided by the utility model, the sensor is connected to the second sleeve.
[0013] According to a steel strand threading control device provided by the utility model, it also includes a connecting structure for connecting the threading sleeve and the anchor pad in the anchor hole.
[0014] According to a steel strand threading control device provided by the utility model, the connection structure comprises:
[0015] A connecting portion, fixedly connected to the threading sleeve;
[0016] A connecting hole is arranged on the connecting portion, and an axis of the connecting hole is parallel to an axis of the threading sleeve.
[0017] According to a steel strand threading control device provided by the utility model, a side of the connecting portion facing the threading opening is a supporting surface, and the supporting surface is flush with an end surface of the threading sleeve provided with the threading opening.
[0018] According to a steel strand threading control device provided by the utility model, the first sleeve and the second sleeve are integrally formed; or the first sleeve and the second sleeve are detachably connected.
[0019] According to a steel strand threading control device provided by the utility model, the sensor includes a proximity switch.
[0020] According to a steel strand threading control device provided by the utility model, the sensor is detachably connected to the threading sleeve.
[0021] The utility model also provides a steel strand threading control system, comprising a strand threading machine and any one of the steel strand threading control devices described above;
[0022] The controller of the steel strand threading control device is communicatively connected with the strand threading machine.
[0023] The utility model provides a steel strand threading control device and system. Under the action of a bundle threading machine, the steel strand is threaded into the threading hole at one end of the box beam and comes out from the threading hole at the other end. A threading sleeve is arranged at the anchor hole at one end of the box beam for the steel strand to pass through, and the threading opening is made coaxially corresponding to the threading hole in the anchor hole. After passing through, the steel strand enters the threading sleeve through the threading opening. A sensor can detect whether there is a steel strand passing through a first position on the threading sleeve. When the sensor detects that a steel strand passes through the first position, the controller will send a control instruction to the bundle threading machine to control the bundle threading machine to stop working. The set distance between the first position and the threading opening is the threading length. With such a configuration, when the sensor senses the steel strand, the controller can respond quickly and control the bundle threading machine to stop working. The staff does not need to monitor the threading length of the steel strand in real time, which saves manpower and improves efficiency. The response is relatively faster, making the control of the threading length more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 It is a structural schematic diagram of a steel strand threading control device provided in an embodiment of the utility model.
[0026] Figure 2 It is a structural schematic diagram of a connection structure provided by an embodiment of the utility model.
[0027] Reference numerals:
[0028] 10. Threading sleeve; 100. Threading port; 101. First sleeve; 102. Second sleeve; 20. Sensor; 30. Connection structure; 300. Connection part; 301. Connection hole. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] In order to facilitate understanding of the steel strand threading control device and system provided by the utility model, its application background is first introduced. In prestressed construction, such as the prefabrication of large railway box girders, prestressed steel strand threading is a basic process. During the construction process, a strand threading machine is used to thread multiple steel strands from one end of the box girder and out from the other end to facilitate tensioning and anchoring.
[0031] In the related technology, the threading process requires the cooperation of two workers, who are located on both sides of the beam end. One worker controls the strand threading machine, and the other worker needs to monitor the threading length of the steel strand in real time. The two workers control the threading length through walkie-talkie communication.
[0032] However, the above-mentioned threading method consumes a lot of manpower and has low efficiency. In addition, the time-consuming communication and manual response process leads to slow response speed, and the threading length is difficult to accurately control.
[0033] Based on the above, the utility model provides a steel strand threading control device and system, which has the advantages of less manpower consumption and higher efficiency, and can respond quickly to achieve more accurate control of the threading length.
[0034] Combine the following Figure 1-Figure 2 The utility model describes a steel strand threading control device and system.
[0035] Reference Figure 1 and Figure 2 A steel strand threading control device comprises a threading sleeve 10, a sensor 20 and a controller; wherein a threading port 100 is provided at one end of the threading sleeve 10, and the threading port 100 is used to coaxially correspond to the threading hole in the anchor hole on the beam end side, so that the steel strand passing through the threading hole can be passed into the threading sleeve 10; the sensor 20 is arranged on the threading sleeve 10, and is used to detect whether there is a steel strand passing through a first position at a set distance from the threading port 100, and generate and send a detection signal; the controller is communicatively connected with the sensor 20, and is used to receive the detection signal and send a control instruction when it is determined that a steel strand passes through the first position, and control the bundle threading machine to stop working.
[0036] In a specific embodiment, the steel strands are passed through the threading hole at one end of the box girder and out of the threading hole at the other end under the action of a threading machine. The threading sleeve 10 is arranged at the anchor hole at one end of the box girder for the steel strands to pass through, and the threading opening 100 is made coaxially corresponding to the threading hole in the anchor hole. After passing through, the steel strands enter the threading sleeve 10 through the threading opening 100. The sensor 20 can detect whether there is a steel strand passing through the first position on the threading sleeve 10. When the sensor 20 detects that a steel strand passes through the first position, the controller will send a control instruction to the threading machine to control the threading machine to stop working. The set distance between the first position and the threading opening 100 is the threading length. With such a configuration, when the sensor 20 senses the steel strand, the controller can respond quickly and control the threading machine to stop working. The staff does not need to monitor the threading length of the steel strand in real time, which saves manpower and improves efficiency. The response is relatively faster, making the control of the threading length more precise.
[0037] In order to facilitate the passing of the steel strands into the threading sleeve 10 smoothly, in a specific embodiment of the utility model, the threading sleeve 10 includes a first sleeve 101 and a second sleeve 102; wherein, the threading opening 100 is arranged at the end of the first sleeve 101, and the inner diameter of the first sleeve 101 gradually expands toward the threading opening 100; with such a configuration, the gradually expanding threading opening 100 can effectively avoid interference between the steel strands and the inner wall of the threading sleeve 10, so that multiple steel strands can be more smoothly entered into the threading sleeve 10.
[0038] The second sleeve 102 is a straight tube structure, which is coaxially connected to the other end of the first sleeve 101 relative to the threading port 100, and the second sleeve 102 is conductive with the first sleeve 101, and the sensor 20 is arranged on the second sleeve 102. During the threading process of the steel strand, although the sensor 20 and the controller can greatly improve the response speed and make the threading length control more accurate, it is understandable that there will still be a certain delay in the signal transmission process of the sensor 20 and the controller, resulting in the actual threading length of the steel strand being slightly longer than the preset threading length. The steel strand in motion has certain safety hazards. The second sleeve 102 can facilitate the installation of the threading sleeve 10 on the one hand, and on the other hand, it can lengthen the overall length of the threading sleeve 10 to play a protective role.
[0039] The first sleeve 101 and the second sleeve 102 can be connected in a detachable manner, such as a threaded connection, so that the first sleeve 101 and the second sleeve 102 can be disassembled and assembled to facilitate the handling and transfer of the threading sleeve 10. The first sleeve 101 and the second sleeve 102 can also be connected in a non-detachable manner, such as welding or integral molding, so that the overall strength of the threading sleeve 10 can be improved. The specific connection method of the first sleeve 101 and the second sleeve 102 can be flexibly configured according to actual needs or application scenarios, and is not specifically limited in the embodiments of the utility model.
[0040] In a specific embodiment of the present invention, the sensor 20 can be configured to be detachably connected to the threading sleeve 10. In this way, when the threading length needs to be changed, the installation position of the sensor 20 can be adaptively adjusted according to actual needs.
[0041] The specific type of sensor 20 can be selected according to actual needs. For example, a proximity switch can be selected. Based on different working principles, the proximity switch includes but is not limited to an inductive proximity switch, a photoelectric proximity switch, an ultrasonic proximity switch, a capacitive proximity switch, etc.
[0042] In practical applications, in order to align the threading sleeve 10 with the threading hole in the anchor hole and keep it stable, the threading sleeve 10 needs to be fixed. Of course, supporting structures such as auxiliary brackets can be provided to support the threading sleeve 10, but this method will make the overall structure of the device more complicated, and it will be inconvenient to disassemble and transfer.
[0043] Based on the above, refer to Figure 1 and Figure 2 The steel strand threading control device also includes a connecting structure 30 for connecting the threading sleeve 10 and the anchor pad in the anchor hole.
[0044] It should be noted that the anchor plate is a steel plate or cast iron plate required for anchoring the steel strand during prestressed construction. The anchor plate is fixed to the bottom wall of the anchor hole. In the embodiment of the utility model, the anchor plate is used as the connection basis of the threading sleeve 10 without involving changes in the structure or principle of the anchor plate itself. Its specific structure and working principle can refer to the prior art and will not be repeated in the embodiment of the utility model.
[0045] In a specific embodiment of the utility model, the connecting structure 30 includes a connecting portion 300 and a connecting hole 301; wherein the connecting portion 300 is fixedly connected to the threading sleeve 10; the connecting hole 301 is opened on the connecting portion 300, and the axis of the connecting hole 301 is parallel to the axis of the threading sleeve 10.
[0046] In practical applications, the threading opening 100 of the threading sleeve 10 is made to correspond coaxially with the threading hole in the anchor hole, and then the rod-shaped parts such as pins and bolts are used to sequentially pass through the connection hole 301 on the connecting part 300 and the grouting hole or threaded hole on the anchor pad to achieve the connection between the threading sleeve 10 and the anchor pad; when the threading control device is transferred, it is only necessary to pull out the rod-shaped part to complete the disassembly of the threading sleeve 10. In this way, the anchor pad can provide a connection foundation for the threading sleeve 10, and there is no need to set up complex supporting parts, which greatly facilitates the installation, removal and transfer of the threading sleeve 10.
[0047] In a specific embodiment of the utility model, the connecting part 300 is in the shape of a plate, and the side thereof facing the opening direction of the threading port 100 is a supporting surface, and the supporting surface is flush with the end surface of the threading sleeve 10 provided with the threading port 100. In this way, after the threading sleeve 10 is installed on the anchor plate, the end surface of the threading port 100 is fitted with the anchor plate, and at the same time, the supporting surface of the connecting part 300 is fitted with the anchor plate, and then a rod-shaped component is used to connect the anchor plate and the connecting part 300 to realize the connection of the threading sleeve 10, making the connection of the threading sleeve 10 more convenient and stable.
[0048] There are a variety of optional connection methods between the connecting portion 300 and the threading sleeve 10. For example, the two can be fixed by welding, or they can be integrally formed. Specifically, they can be flexibly configured according to actual needs and application scenarios.
[0049] It should be noted that, in the absence of conflict, the technical features in the embodiments of the present invention can be combined.
[0050] The steel strand threading control system provided by the present invention is described below. The steel strand threading control system described below and the steel strand threading control device described above can be referenced to each other.
[0051] A steel strand threading control system includes a strand threading machine and the above-mentioned steel strand threading control device; the controller of the steel strand threading control device is communicatively connected with the strand threading machine, and when the sensor 20 detects that a steel strand passes through a first position, the controller sends a control instruction to the strand threading machine to control the strand threading machine to stop working.
[0052] The novelty of the present invention is that the steel strands passed through the threading port 100 enter the threading sleeve 10, and the sensor 20 can detect whether there are steel strands passing through the first position on the threading sleeve 10. When the sensor 20 detects that there are steel strands passing through the first position, the controller will send a control instruction to the threading machine to control the threading machine to stop working. The set distance between the first position and the threading port 100 is the threading length. With this arrangement, when the sensor 20 senses the steel strands, the controller can respond quickly and control the threading machine to stop working. The staff does not need to monitor the threading length of the steel strands in real time, which saves manpower and improves efficiency. The response is relatively quicker, making the control of the threading length more precise.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A steel strand threading control device, characterized in that: include: A threading sleeve (10) is provided with a threading opening (100) at one end, wherein the threading opening (100) is adapted to be coaxially corresponding to a threading hole in an anchor hole at a beam end, so that the steel strand passing through the threading hole can be passed into the threading sleeve (10); A sensor (20) is arranged on the threading sleeve (10) and is used to detect whether a steel strand passes through a first position at a set distance from the threading opening (100), and to generate and send a detection signal; The controller is connected to the sensor (20) for receiving the detection signal and issuing a control instruction to control the stranding machine to stop working when it is determined that a steel strand has passed through the first position.
2. The steel strand threading control device according to claim 1, characterized in that: The threading sleeve (10) comprises a first sleeve (101), the threading opening (100) is arranged at the end of the first sleeve (101), and the inner diameter of the first sleeve (101) gradually expands towards the threading opening (100).
3. The steel strand threading control device according to claim 2, characterized in that: The threading sleeve (10) further comprises a second sleeve (102) of a straight structure, wherein the second sleeve (102) is coaxially connected to an end of the first sleeve (101) away from the threading port (100), and the second sleeve (102) is in conduction with the first sleeve (101).
4. The steel strand threading control device according to claim 3, characterized in that: The sensor (20) is connected to the second sleeve (102).
5. The steel strand threading control device according to any one of claims 1 to 4, characterized in that: It also includes a connection structure (30) for connecting the threading sleeve (10) and the anchor pad in the anchor hole.
6. The steel strand threading control device according to claim 5, characterized in that: The connection structure (30) comprises: A connecting portion (300) fixedly connected to the threading sleeve (10); A connecting hole (301) is provided on the connecting portion (300), and an axis of the connecting hole (301) is parallel to an axis of the threading sleeve (10).
7. The steel strand threading control device according to claim 6, characterized in that: A side of the connecting portion (300) facing the opening direction of the threading port (100) is a supporting surface, and the supporting surface is flush with an end surface of the threading sleeve (10) provided with the threading port (100).
8. The steel strand threading control device according to claim 3, characterized in that: The first sleeve (101) and the second sleeve (102) are integrally formed; or the first sleeve (101) and the second sleeve (102) are detachably connected.
9. The steel strand threading control device according to claim 1, characterized in that: The sensor (20) comprises a proximity switch.
10. A steel strand threading control system, characterized in that: It comprises a strand threading machine and a steel strand threading control device as claimed in any one of claims 1 to 9; The controller of the steel strand threading control device is communicatively connected with the strand threading machine.