Tensioning force detection device for prestressed reinforcement cage winding machine

Abstract

The invention relates to the technical field of reinforcement cage machining, in particular to a prestressed reinforcement cage winding machine tensioning force detection device which is provided with a connecting shaft, a first winding disc, a tensioning force detection assembly and a stable rotating mechanism. The first winding disc and the second winding disc are matched with each other to fix longitudinal reinforcing steel bars of a reinforcement cage, the annular connecting mechanism is matched with the connecting shaft for use, when external tension equipment is used for stretching, the second winding disc uniformly applies force to each reinforcing steel bar, and meanwhile, the annular connecting mechanism uniformly detects the stress of the disc center and the outer disc of the second winding disc. The tensioning force detection device is simple in structure, uniform in stress and more accurate in detection data, and meanwhile, the annular connecting mechanism can realize rotation of the first winding disc and the second winding disc, namely detection of the tensioning force in the reinforcement cage winding process, so that the detection effect and practicability are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of steel cage processing, and more specifically to a tension force detection device for a prestressed steel cage winding machine. Background Art

[0002] The prestressed steel cage is a steel mesh skeleton of conical concrete poles and cylindrical concrete pipe piles. The steel cage needs to be tensioned to a certain tension before spiral reinforcement can be wound.

[0003] At present, the tension detection device of the prestressed steel cage winding machine already exists on the market, for example, a tension detection device of the prestressed steel cage winding machine with patent application number 202220982053.8, which is applied to the prestressed steel cage winding machine, the prestressed steel cage winding machine includes a winding machine main shaft, and the winding machine main shaft is arranged on one side of the steel cage; wherein, the tension detection device includes a rotating support mechanism, the rotating support mechanism is sleeved on the first end of the winding machine main shaft; an annular pressure sensor, the annular pressure sensor is sleeved on the middle of the winding machine main shaft and arranged side by side with the rotating support mechanism; a sensor fixing seat, the sensor fixing seat is sleeved on the middle of the winding machine main shaft and covers the annular pressure sensor; a controller, the controller is electrically connected to the annular pressure sensor; a tensioning motor, the tensioning motor is fixedly arranged on the other side of the steel cage, and the output end of the tensioning motor is connected to the steel cage. The tension detection device can reduce the tension error and improve the quality of steel cage products.

[0004] However, the device has certain defects during use. First, the device does not explain how to connect with the steel cage. It only uses a connecting shaft for connection. The spacing between each steel bar in the cross section of the steel cage varies depending on the diameter of the steel bar. Using only one shaft and a ring-shaped tension component cannot guarantee that all steel bars are contacted, because there will be deviations between the tension force directly acting on the shaft and the force acting on the steel bar, resulting in inaccurate tension force detection. Secondly, there is no limit between the main shaft and the rotating support structure of the device. While ensuring rotation, lateral tensioning displacement is also carried out, which will cause axial offset between the main shaft and the rotating support structure. This will lead to uneven force in the subsequent tensioning process and inaccurate test data of the tensioning force detection.

[0005] To this end, we proposed a prestressed steel cage winding machine tension force detection device and method. Summary of the invention

[0006] The object of the present invention is to provide a tension detection device for a prestressed steel cage winding machine to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a tension force detection device for a prestressed steel cage winding machine, comprising a connecting shaft, one end of which is used to be connected to an external tension device, and the outer side of the connecting shaft is also rotatably connected to a first winding disk and a tension force detection component; The tension detection assembly is used to uniformly detect the tension of the steel cage. The tension detection assembly specifically includes an annular connection mechanism and a second winding disk. The first winding disk and the second winding disk are used to fix steel cages of different diameters. The annular connection mechanism is used to detect the tension of the steel cage while cooperating with the second winding disk to rotate. A push plate is installed on the end surface of the other end of the connecting shaft, and the push plate contacts one side of the tension force detection component. A stable rotation mechanism is also arranged on the outer side of the connecting shaft and located on the other side of the tension force detection component. The stable rotation mechanism is connected to the annular connecting mechanism, and the stable rotation mechanism is used to stabilize the rotation of the annular connecting mechanism. The annular connecting mechanism and the stable rotation mechanism form a gap for tensioning; Two first fixing rings are arranged on both sides of the first winding disk on the outside of the connecting shaft, and the two first fixing rings drive the first winding disk to move when the connecting shaft is pulled by the external tension device; The annular connection mechanism specifically includes a mounting flange, a flange ring groove and a rotating ring, wherein the mounting flange is sleeved on the outside of the connecting shaft, the flange ring groove is provided on the mounting flange ring surface, and the rotating ring is rotatably installed inside the flange ring groove, a small annular pressure sensor is installed on the side of the flange ring groove close to the stable rotating mechanism, a small triggering groove is correspondingly provided on the side of the rotating ring close to the small annular pressure sensor, four connecting rods are evenly distributed on the outer ring surface of the rotating ring, the ends of the four connecting rods are connected to a ring frame, and a large annular pressure sensor is provided on the side of the ring frame away from the small annular pressure sensor; The second winding disk is rotatably installed inside the flange ring groove, and the rotating ring is located on the left side of the second winding disk. The large annular pressure sensor contacts the outer ring end surface of the second winding disk.

[0008] A further technical solution of the present application is as follows: four abutment stabilization mechanisms are also arranged at positions on the outer ring surface of the mounting flange corresponding to the four connecting rods, and a single abutment stabilization mechanism comprises a base installed on the outer ring surface of the mounting flange, a mounting groove is provided inside the base, a stabilization column is installed inside the mounting groove, a stabilization cylinder is installed at a position on the connecting rod corresponding to the stabilization column, and the stabilization column is inserted into the stabilization cylinder, a buffer spring is also sleeved on the outside of the stabilization cylinder, and one end of the buffer spring is connected to the mounting groove.

[0009] A further technical solution of the present application is as follows: a first shielding ring is formed at the end eaves of the stabilizing column, a second shielding ring is formed at the opening inner eaves of the stabilizing tube, and the adjacent end faces of the first shielding ring and the second shielding ring are abutted.

[0010] A further technical solution of the present application is as follows: the stable rotation mechanism comprises a second fixed ring installed on the outside of the connecting shaft, the second fixed ring is located between the first fixed ring and the annular connecting mechanism, a rotating inner cavity is further provided inside the second fixed ring, a clamping cavity is further provided on the inner ring surface of the rotating inner cavity, a rotating seat is inserted inside the rotating inner cavity, a limiting ring is coaxially installed on the outer ring surface of the rotating seat, and the limiting ring is rotatably clamped inside the clamping cavity, and the end surface of the limiting ring away from the rotating seat is connected to a limiting arc piece; A limiting groove is also provided at the inner ring eaves of the mounting flange, and a limiting arc piece is inserted into the limiting groove.

[0011] A further technical solution of the present application is as follows: the number of the limiting arc pieces and the limiting grooves are both several, and the length of the limiting arc piece is smaller than the depth of the limiting groove.

[0012] A further technical solution of the present application is as follows: a large trigger groove is provided on the outer ring end face of the second winding disk, and a large annular pressure sensor is fitted in the large trigger groove.

[0013] A further technical solution of the present application is as follows: the interior of the second winding disk is composed of a number of disk supports evenly spliced ​​together, and connecting grooves are formed between the disk supports, and a number of fixing holes are evenly opened inside each of the connecting grooves.

[0014] A further technical solution of the present application is that the shape of a single fixing hole is conical.

[0015] A further technical solution of the present application is as follows: the first winding disc and the second winding disc are installed in a prestressed steel cage winding machine, and the prestressed steel cage winding machine drives the first winding disc and the second winding disc to rotate to wind the steel cage.

[0016] A method for detecting the tension force of a prestressed steel cage winding machine, the method comprising the following steps: Step 1: Connect and fix the longitudinal steel bars in the steel cage to the first winding drum and the second winding drum, then connect one end of the connecting shaft to the external tension device to tension the longitudinal steel bars of the steel cage before winding; Step 2: The connecting shaft is tensioned by an external tension device, driving the first winding disk to move, and the longitudinal steel bars are tensioned at the same time. During the tensioning process, the tension force detection component will be synchronously driven by the longitudinal steel bars. During the movement, the annular connection mechanism inside the tension force detection component detects the tension force in real time; Step three: After prestressing, the first winding disc and the second winding disc are driven by the steel cage winding machine to rotate to wind the steel cage. During the winding process, the tension detection component and the first winding disc rotate synchronously, and tensioning and tension force detection can continue.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a connecting shaft, a first winding disk, a tension detection component and a stable rotation mechanism. First, the tension detection component is composed of an annular connecting mechanism and a second winding disk. The first winding disk and the second winding disk cooperate with each other to fix the longitudinal steel bars of the steel cage. The annular connecting mechanism is used in conjunction with the connecting shaft. When the external tension device is stretched, the second winding disk uniformly applies force to each steel bar. At the same time, the annular connecting mechanism uniformly detects the force on the center of the second winding disk and the outer disk. The force is uniform and the detection data is more accurate. At the same time, the annular connecting mechanism can realize the rotation of the first winding disk and the second winding disk, that is, the tension detection is performed during the winding process of the steel cage, thereby ensuring the detection effect and practicality. At the same time, the stable rotation component can ensure the stable rotation and displacement of the annular connecting mechanism, greatly reduce the offset situation, and improve the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a tension force detection device for a prestressed steel cage winding machine provided by the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the installation structure of the abutment stabilization mechanism in the present invention; Figure 4 It is a schematic diagram of the structure of the disc support and the fixing hole position in the present invention; Figure 5 It is a side view structural schematic diagram of the present invention; Figure 6 is a schematic cross-sectional structure diagram of the annular connecting mechanism in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the annular connecting mechanism in the present invention; Figure 8 It is a schematic diagram of the structure of the limiting groove in the present invention; Fig. 9 It is a schematic cross-sectional structure diagram of the abutment stabilization mechanism in the present invention; Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Explanation of the symbols in the schematic diagram: 1. Connecting shaft; 2. First winding disk; 3. Second winding disk; 4. Connecting rod; 5. Large annular pressure sensor; 6. Mounting flange; 7. Disk support; 8. Connecting groove; 9. Fixing hole; 10. First fixing ring; 11. Push plate; 12. Limiting groove; 13. Abutment stabilization mechanism; 14. Flange ring groove; 15. Small triggering groove; 16. Second fixing ring; 17. Limiting arc piece; 18. Rotating inner cavity; 19. Limiting ring; 20. Small annular pressure sensor; 21. Large triggering groove; 22. Base; 23. Stabilizing cylinder; 24. First shielding ring; 25. Buffer spring; 26. Stabilizing column; 27. Second shielding ring; 28. Rotating seat; 29. ​​Clamping cavity; 30. Rotating ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0021] See also Figures 1 to 10 In one embodiment of the present application: a tension force detection device for a prestressed steel cage winding machine comprises a connecting shaft 1, one end of the connecting shaft 1 is used to be connected to an external tension device, and the outer side of the connecting shaft 1 is also rotatably connected to a first winding disc 2 and a tension force detection component; The tension detection assembly is used to uniformly detect the tension of the steel cage. The tension detection assembly specifically includes an annular connection mechanism and a second winding disc 3. The first winding disc 2 and the second winding disc 3 are used to jointly fix steel cages of different diameters. The annular connection mechanism is used to detect the tension of the steel cage while cooperating with the second winding disc 3 to rotate. A push plate 11 is installed on the other end surface of the connecting shaft 1, and the push plate 11 contacts one side of the tension detection assembly. A stable rotation mechanism is also arranged on the other side of the tension detection assembly on the outside of the connecting shaft 1, and the stable rotation mechanism is connected to the annular connecting mechanism. The stable rotation mechanism is used to stabilize the rotation of the annular connecting mechanism, and the annular connecting mechanism and the stable rotation mechanism form a gap for tensioning; Two first fixing rings 10 are arranged on both sides of the first winding disk 2 on the outside of the connecting shaft 1. When the connecting shaft 1 is pulled by the external tension device, the two first fixing rings 10 drive the first winding disk 2 to move; The annular connection mechanism specifically includes a mounting flange 6, a flange ring groove 14 and a rotating ring 30, wherein the mounting flange 6 is sleeved on the outside of the connecting shaft 1, the flange ring groove 14 is provided on the ring surface of the mounting flange 6, and the rotating ring 30 is rotatably installed inside the flange ring groove 14, a small annular pressure sensor 20 is installed on the side of the flange ring groove 14 close to the stable rotating mechanism, a small triggering groove 15 is correspondingly provided on the side of the rotating ring 30 close to the small annular pressure sensor 20, four connecting rods 4 are evenly distributed on the outer ring surface of the rotating ring 30, the ends of the four connecting rods 4 are connected to a ring frame, and a large annular pressure sensor 5 is provided on the side of the ring frame away from the small annular pressure sensor 20; The second winding disk 3 is rotatably installed inside the flange ring groove 14 , and the rotating ring 30 is located on the left side of the second winding disk 3 , and the large annular pressure sensor 5 is in contact with the outer ring end surface of the second winding disk 3 .

[0022] Furthermore, the first winding disc 2 and the second winding disc 3 are installed in a prestressed steel cage winding machine, and the prestressed steel cage winding machine drives the first winding disc 2 and the second winding disc 3 to rotate to wind the steel cage.

[0023] Furthermore, a large triggering groove 21 is formed on the outer ring end surface of the second winding disk 3 , and the large annular pressure sensor 5 is fitted in the large triggering groove 21 .

[0024] This embodiment is implemented as follows: during processing, the longitudinal steel bars in the steel cage are connected and fixed to the first winding disc 2 and the second winding disc 3, and then one end of the connecting shaft 1 is connected to the external tension device, and the longitudinal steel bars of the steel cage are tensioned before winding; the connecting shaft 1 is tensioned by the external tension device, driving the first winding disc 2 to move, and the longitudinal steel bars are tensioned at the same time. During the tensioning process, the tensioning force detection component will be synchronously driven by the longitudinal steel bars, and the annular connection mechanism inside the tensioning force detection component will detect the tensioning force in real time during the movement; after prestressing, the first winding disc 2 and the second winding disc 3 are driven by the steel cage winding machine to rotate, When winding the steel cage, it should be noted that during the use of the device, the first winding disc 2 and the second winding disc 3 are mounted on the horizontal steel cage winding machine, and the horizontal steel cage winding machine engages and rotates with the outer disc surfaces of the first winding disc 2 and the second winding disc 3 to achieve winding, wherein the position of the second winding disc 3 is fixed, and the first winding disc 2 can be displaced in the horizontal steel cage winding machine, and during the winding process, the tension detection component and the first winding disc 2 rotate synchronously, and tensioning and tension detection can continue, mainly by limiting the rotation of the annular connection mechanism through a stable rotation mechanism, ensuring that the annular connection mechanism will not be offset during the rotation process; Specifically, when the annular connection mechanism performs real-time detection of the tensioning force, the rotating ring 30 is connected to the ring frame through four connecting rods 4 for overall displacement, and the annular pressure sensors on the side of the rotating ring 30 and the side of the ring frame will contact their respective matching trigger grooves to achieve the transmission and detection of the tensioning force.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 , Fig. 9 and Fig.10 As a preferred embodiment of the present application, four abutment stabilization mechanisms 13 are further provided at the positions of the outer annular surface of the mounting flange 6 corresponding to the four connecting rods 4. A single abutment stabilization mechanism 13 includes a base 22 installed on the outer annular surface of the mounting flange 6, a mounting groove is provided inside the base 22, a stabilization column 26 is installed inside the mounting groove, a stabilization cylinder 23 is installed at the position of the connecting rod 4 corresponding to the stabilization column 26, and the stabilization column 26 is inserted into the stabilization cylinder 23, a buffer spring 25 is also sleeved on the outside of the stabilization cylinder 23, and one end of the buffer spring 25 is connected to the mounting groove.

[0026] Furthermore, a first shielding ring 24 is formed at the end eaves of the stabilizing column 26 , a second shielding ring 27 is formed at the opening inner eaves of the stabilizing tube 23 , and the adjacent end faces of the first shielding ring 24 and the second shielding ring 27 are in abutment with each other.

[0027] This embodiment is implemented as follows: the main function of the abutment stabilizing mechanism 13 is to stabilize the annular connection mechanism and prevent it from deflecting. The stabilizing column 26 is used in conjunction with the stabilizing cylinder 23. The two are adapted and plugged into each other to stabilize the connecting rod 4 of the annular connection mechanism, thereby stabilizing the annular connection mechanism as a whole. Secondly, the buffer spring 25 can buffer the tension force to prevent the tension force from being too large and causing damage to the annular connection mechanism. Secondly, the first blocking ring 24 and the second blocking ring 27 are used to prevent the stabilizing tube 23 and the stabilizing column 26 from being separated, which makes the stabilizing tube 23 and the stabilizing column 26 more stable and can also limit the buffer spring 25.

[0028] See also Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As a preferred embodiment of the present application, the stable rotation mechanism includes a second fixed ring 16 installed on the outside of the connecting shaft 1, the second fixed ring 16 is located between the first fixed ring 10 and the annular connecting mechanism, a rotating inner cavity 18 is further provided inside the second fixed ring 16, and a clamping cavity 29 is further provided on the inner ring surface of the rotating inner cavity 18, a rotating seat 28 is inserted inside the rotating inner cavity 18, a limiting ring 19 is coaxially installed on the outer ring surface of the rotating seat 28, and the limiting ring 19 is rotatably clamped inside the clamping cavity 29, and the end surface of the limiting ring 19 away from the rotating seat 28 is connected to the limiting arc piece 17; A limiting groove 12 is also provided at the inner ring eave of the mounting flange 6 , and a limiting arc piece 17 is inserted into the limiting groove 12 .

[0029] Furthermore, the number of the limiting arc pieces 17 and the number of the limiting grooves 12 are both several, and the length of the limiting arc pieces 17 is smaller than the depth of the limiting grooves 12 .

[0030] This embodiment is implemented as follows: the main function of the stable rotation mechanism is to ensure that the annular connection mechanism will not deviate during the rotation and tensioning process. It is mainly composed of the rotation inner cavity 18 inside the second fixed ring 16 and the rotation seat 28. The outer ring surface of the rotation seat 28 is coaxially installed with a limit ring 19. The rotation seat 28 itself will not rotate, and the connecting shaft 1 will not rotate. However, the annular connection mechanism needs to be rotated and tensioned. At this time, the limit ring 19 is used in conjunction with the limit arc piece 17 to connect with the annular connection mechanism. When the annular connection mechanism rotates, the limit ring 19 rotates inside the clamping cavity 29 to ensure the rotation of the annular connection mechanism. At the same time, the limit arc piece 17 is inserted into the limit groove 12 to limit the displacement of the annular connection mechanism, thereby ensuring that the annular connection mechanism will not deviate during the rotation and tensioning process. Furthermore, the length of the limiting arc piece 17 is smaller than the depth of the limiting groove 12, so as to ensure that there is enough distance for tensioning during the tensioning process.

[0031] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The interior of the second winding disk 3 is composed of a plurality of disk supports 7 evenly spliced ​​together, and connecting grooves 8 are formed between the disk supports 7, and a plurality of fixing holes 9 are evenly opened inside each of the connecting grooves 8.

[0032] Furthermore, the shape of a single fixing hole 9 is conical.

[0033] This embodiment is implemented as follows: when fixing the steel bars, it is mainly achieved by cooperating with the connecting grooves 8 and the fixing holes 9. The connecting grooves 8 are formed by the gaps between multiple coil supports 7 and are long grooves themselves, ensuring that the spacing position of the steel bars on the second winding coil 3 is adjustable, so that it is suitable for processing steel cages of various diameters; secondly, the fixing holes 9 are bell-mouthed, the purpose of which is to cooperate with the external fixing caps to fix the steel bars during the tensioning process, thereby achieving the tensioning and tightening effect.

[0034] See also Figures 1 to 10 , a method for detecting the tension force of a prestressed steel cage winding machine, the method comprising the following steps: Step 1: Connect and fix the longitudinal steel bars in the steel cage to the first winding drum 2 and the second winding drum 3, and then connect one end of the connecting shaft 1 to the external tension device to tension the longitudinal steel bars of the steel cage before winding; Step 2: The connecting shaft 1 is tensioned by an external tension device, driving the first winding disc 2 to move, and the longitudinal steel bars are tensioned at the same time. During the tensioning process, the tension force detection component will be synchronously driven by the longitudinal steel bars, and the annular connection mechanism inside the tension force detection component will detect the tension force in real time during the movement; Step three: After prestressing, the first winding disc 2 and the second winding disc 3 are driven by the steel cage winding machine to rotate to wind the steel cage. During the winding process, the tension detection component and the first winding disc 2 rotate synchronously, and tensioning and tension force detection can continue.

[0035] In summary, the present invention is provided with a connecting shaft, a first winding disk, a tension detection component and a stable rotation mechanism. First, the tension detection component is composed of an annular connecting mechanism and a second winding disk. The first winding disk and the second winding disk cooperate with each other to fix the longitudinal steel bars of the steel cage. The annular connecting mechanism is used in conjunction with the connecting shaft. When the external tension device is stretched, the second winding disk uniformly applies force to each steel bar. At the same time, the annular connecting mechanism uniformly detects the force on the center of the second winding disk and the outer disk. The force is uniform and the detection data is more accurate. At the same time, the annular connecting mechanism can realize the rotation of the first winding disk and the second winding disk, that is, the tension detection is performed during the winding process of the steel cage, thereby ensuring the detection effect and practicality. At the same time, the stable rotation component can ensure the stable rotation and displacement of the annular connecting mechanism, greatly reduce the offset situation, and improve the stability of the equipment.

[0036] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tension detection device for a prestressed steel cage winding machine, characterized in that: It comprises a connecting shaft (1), one end of which is used to be connected to an external tension device, and the outside of the connecting shaft (1) is also rotatably connected to a first winding disk (2) and a tension force detection component; The tension force detection component is used to uniformly detect the tension force of the steel cage, and the tension force detection component specifically comprises an annular connection mechanism and a second winding disk (3), the first winding disk (2) and the second winding disk (3) are used to fix steel cages of different diameters, and the annular connection mechanism is used to detect the tension force of the steel cage while cooperating with the second winding disk (3) to rotate; A push plate (11) is mounted on the end surface of the other end of the connecting shaft (1), the push plate (11) contacts one side of the tension force detection component, and a stabilizing rotation mechanism is also arranged on the outside of the connecting shaft (1) and on the other side of the tension force detection component, the stabilizing rotation mechanism is connected to the annular connecting mechanism, the stabilizing rotation mechanism is used to stabilize the rotation of the annular connecting mechanism, and the annular connecting mechanism and the stabilizing rotation mechanism form a gap for tensioning; Two first fixing rings (10) are arranged on both sides of the first winding disk (2) outside the connecting shaft (1), and when the connecting shaft (1) is pulled by an external tension device, the two first fixing rings (10) drive the first winding disk (2) to move; The annular connection mechanism specifically comprises a mounting flange (6), a flange annular groove (14) and a rotating ring (30), wherein the mounting flange (6) is sleeved on the outside of the connecting shaft (1), the flange annular groove (14) is provided on the annular surface of the mounting flange (6), and the rotating ring (30) is rotatably mounted inside the flange annular groove (14), a small annular pressure sensor (20) is mounted on the side of the flange annular groove (14) close to the stable rotating mechanism, a small triggering groove (15) is correspondingly provided on the side of the rotating ring (30) close to the small annular pressure sensor (20), four connecting rods (4) are evenly distributed on the outer annular surface of the rotating ring (30), the ends of the four connecting rods (4) are connected to an annular frame, and a large annular pressure sensor (5) is provided on the side of the annular frame away from the small annular pressure sensor (20); The second winding disk (3) is rotatably mounted inside the flange ring groove (14), and the rotating ring (30) is located on the left side of the second winding disk (3). The large annular pressure sensor (5) is in contact with the outer ring end surface of the second winding disk (3).

2. A prestressed steel cage winding machine tension force detection device according to claim 1, characterized in that: Four abutting stabilizing mechanisms (13) are also arranged at positions of the outer annular surface of the mounting flange (6) corresponding to the four connecting rods (4), and each of the abutting stabilizing mechanisms (13) comprises a base (22) mounted on the outer annular surface of the mounting flange (6), a mounting groove is provided inside the base (22), a stabilizing column (26) is installed inside the mounting groove, a stabilizing cylinder (23) is installed at a position on the connecting rod (4) corresponding to the stabilizing column (26), and the stabilizing column (26) is inserted into the stabilizing cylinder (23), and a buffer spring (25) is also sleeved on the outside of the stabilizing cylinder (23), and one end of the buffer spring (25) is connected to the mounting groove.

3. A prestressed steel cage winding machine tension force detection device according to claim 2, characterized in that: A first shielding ring (24) is formed at the eaves of the end of the stabilizing column (26), a second shielding ring (27) is formed at the eaves of the opening of the stabilizing cylinder (23), and the adjacent end faces of the first shielding ring (24) and the second shielding ring (27) are in abutment with each other.

4. A prestressed steel cage winding machine tension force detection device according to claim 1, characterized in that: The stable rotation mechanism comprises a second fixing ring (16) mounted on the outside of the connecting shaft (1), the second fixing ring (16) being located between the first fixing ring (10) and the annular connecting mechanism, a rotating inner cavity (18) being provided inside the second fixing ring (16), a clamping cavity (29) being provided on the inner ring surface of the rotating inner cavity (18), a rotating seat (28) being inserted inside the rotating inner cavity (18), a limiting ring (19) being coaxially mounted on the outer ring surface of the rotating seat (28), the limiting ring (19) being rotatably clamped inside the clamping cavity (29), and a limiting arc piece (17) being connected to the end surface of the limiting ring (19) away from the rotating seat (28); A limiting groove (12) is also provided at the inner ring eaves of the mounting flange (6), and a limiting arc piece (17) is inserted into the limiting groove (12).

5. A prestressed steel cage winding machine tension force detection device according to claim 4, characterized in that: The number of the limiting arc pieces (17) and the limiting grooves (12) are both several, and the length of the limiting arc pieces (17) is smaller than the depth of the limiting grooves (12).

6. A prestressed steel cage winding machine tension force detection device according to claim 1, characterized in that: A large triggering groove (21) is provided on the outer ring end surface of the second winding disk (3), and the large annular pressure sensor (5) is fitted in the large triggering groove (21).

7. A prestressed steel cage winding machine tension force detection device according to claim 6, characterized in that: The interior of the second winding disc (3) is composed of a plurality of disc supports (7) that are evenly spliced ​​together, and connecting grooves (8) are formed between two of the disc supports (7), and a plurality of fixing holes (9) are evenly opened inside each of the connecting grooves (8).

8. A prestressed steel cage winding machine tension force detection device according to claim 7, characterized in that: The shape of a single fixing hole (9) is conical.

9. A prestressed steel cage winding machine tension force detection device according to claim 1, characterized in that: The first winding disc (2) and the second winding disc (3) are installed in a prestressed steel cage winding machine, and the prestressed steel cage winding machine drives the first winding disc (2) and the second winding disc (3) to rotate to wind the steel cage.

10. The method applied to the tension force detection device of a prestressed steel cage winding machine according to claim 1, characterized in that: The method comprises the following steps: Step 1: Connect and fix the longitudinal steel bars in the steel cage to the first winding drum (2) and the second winding drum (3), then connect one end of the connecting shaft (1) to an external tension device to tension the longitudinal steel bars of the steel cage before winding; Step 2: The connecting shaft (1) is tensioned by an external tension device, driving the first winding disk (2) to move, and the longitudinal steel bars are tensioned at the same time. During the tensioning process, the tensioning force detection component is synchronously driven by the longitudinal steel bars, and the annular connection mechanism inside the tensioning force detection component detects the tensioning force in real time during the movement; Step 3: After prestressing, the first winding disc (2) and the second winding disc (3) are driven by the steel cage winding machine to rotate to wind the steel cage. During the winding process, the tension force detection component and the first winding disc (2) rotate synchronously, and tensioning and tension force detection can continue.

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