A prestressed steel structure cable tensioning device for accurately measuring tension force

Abstract

This invention discloses a prestressed steel structure cable tensioning device for precise measurement of tension force, specifically relating to the field of steel structure cable tensioning technology. It mainly includes two mounting seats, a support column, and a guide bar column. The support column is welded between the two mounting seats, and the guide bar column is welded to the outer wall of the support column. The outer wall of the guide bar column is provided with a guiding and positioning mechanism; wherein, the guiding and positioning mechanism includes a guide groove ring slidably disposed on the outer wall of the guide bar column. This invention employs a guiding and positioning mechanism, with the guide bar column firmly supporting the support ring. Two hydraulic cylinders respectively push two push rods to the left, allowing the guide groove ring to be guided and positioned to the left along the groove on the outer wall of the guide bar column. This enables the application of tension forces on multiple vertically measuring cables and two transversely measuring cables at the same point. During the tensioning process, the multiple cables avoid displacement and swaying due to force, allowing for simultaneous and precise measurement of tension forces at different points on the steel structure, significantly improving measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure cable tensioning, and more specifically to a prestressed steel structure cable tensioning device for accurately measuring tensioning force. Background Art

[0002] The main purpose of the prestressed steel structure cable tensioning model test device for measuring tension is to accurately measure the tension. The device contains strain gauge elements that can accurately measure the tension of the prestressed steel structure cable during the tensioning process. This precise measurement helps to ensure that the tension of the cable meets the design requirements and ensures the stability and safety of the structure.

[0003] After searching the existing published documents, the patent with patent announcement number CN111691679A discloses a prestressed steel structure intelligent tensioning method based on digital twins. This cable tensioning technology can solve the shortcomings of poor accuracy and low intelligence of traditional cable tensioning safety control methods to a certain extent. This method adopts digital twins and artificial intelligence theory based on deep learning, and takes the tensioning of a typical project as an example to provide theoretical and key technical support for the safe construction of large-span prestressed steel structure tensioning. However, this cable tensioning technology has the following defects.

[0004] When a cable tensioning device is used to conduct a model test on a prestressed steel structure, the completed steel structure needs to be connected to the model test point using the cable tensioning device, so as to apply a certain force to measure the tension value. However, during the measurement process, due to the large number of points on the steel structure, each point needs to be installed and spliced, and the test force needs to be applied to each point. Multiple cables are very likely to cause force deviation and shaking during the pulling process, making it difficult to synchronously achieve accurate tension measurement of different points on the steel structure, and the measurement accuracy is poor. Therefore, a prestressed steel structure cable tensioning device for accurately measuring tension is provided. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a prestressed steel structure cable tensioning device for accurately measuring the tensioning force.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a prestressed steel structure cable tensioning device for accurately measuring tensioning force, comprising two mounting seats, a support column and a guide bar column, wherein the support column is welded between the two mounting seats, the guide bar column is welded on the outer wall of the support column, and the outer wall of the guide bar column is provided with a guide positioning mechanism;

[0007] The guide positioning mechanism includes a guide groove ring slidably set on the outer wall of the guide bar column, and two push rods are fixedly installed on one side of the guide groove ring, and one end of the two push rods is fixedly installed with a hydraulic cylinder; the other side of the guide groove ring is provided with a support ring welded to the outer wall of the pillar, and a controller is fixedly installed on one side of the pillar and below the hydraulic cylinder; a vertical synchronous guide mechanism is provided above the outer wall of the guide groove ring; a horizontal synchronous guide mechanism is provided below the outer wall of the guide groove ring, the two mounting seats are symmetrically arranged with respect to the pillar, and the vertical cross-sectional shape of the two mounting seats is set to T-shaped; the two mounting seats and the pillar are both made of stainless steel, the two hydraulic cylinders are symmetrically arranged with respect to the mounting seats, and the two hydraulic cylinders are fixedly connected to the mounting seats.

[0008] When the prestressed steel structure cable tensioning device for accurately measuring tensioning force is used, the two mounting seats provide support force to the pillars, the pillars provide support force to the guide bars, and provide stable support force to the support rings. Then the two hydraulic cylinders are activated by the controller, and the two hydraulic cylinders push the two push rods to move left respectively, the guide groove ring moves left, the support ring supports the guide bar, and the guide groove ring can be guided and positioned to move left along the groove body of the outer wall of the guide bar.

[0009] Preferably, the vertical synchronous guide mechanism comprises a plurality of concave blocks fixedly arranged above the outer wall of the guide groove ring; an articulated shaft is welded on the inner wall of each of the concave blocks, and a sleeve rod is rotatably connected to the outer wall of the articulated shaft, a push shaft is rotatably connected to the inner wall of the sleeve rod away from the articulated shaft, and a concave support block is welded to one end of the push shaft; a sleeve block is integrally formed by die-casting on one side of the concave support block, a guide column is slidably connected to the inner wall of the sleeve block, the bottom ends of the plurality of guide columns are fixedly connected to the support ring, and a slide plate is fixedly connected to one side of the outer wall of the sleeve block, and a measuring cable is fixedly connected to the inner wall of the slide plate and near its top end; the outer wall of the measuring cable and the top and bottom surfaces of the slide plate are fixedly connected to limit rings, and a vertical tension sensor for tension sensing is fixedly installed on the bottom end of the measuring cable;

[0010] A concave sleeve block is fixedly installed at the bottom end of the vertical tension sensor, and two pull rods are fixedly connected to the inner wall of the concave sleeve block, and two pull ears are provided on both sides of the concave sleeve block, the pull ears are fixedly connected to the pull rods, and one side of the pull ear is provided with a steel structure frame welded to the concave sleeve block, the pull ear is fixedly connected to the steel structure frame, and a frame is welded to the bottom end of the steel structure frame, the center point of the push shaft is higher than the center point of the hinge shaft, and the vertical cross-sectional shapes of the push shaft and the hinge shaft are both set to be circular, the sleeve rod is rotatably connected to the concave block, a plurality of the guide columns are arranged in an arc with equal distance, the concave support block is fixedly connected to the slide plate, and a plurality of the concave support blocks are arranged in an arc with equal distance; a limit block for limiting the sleeve block is fixedly installed on the top of the guide column.

[0011] When the prestressed steel structure cable tensioning device that accurately measures the tensioning force of this technical solution is in use, multiple concave blocks respectively drive multiple hinged shafts to move left, the hinged shaft carries the bottom of the sleeve rod to move left, the push shaft carries the concave support block to move upward, the sleeve block can move upward along the outer wall of the guide column, the support ring provides a firm support force for the multiple guide columns, and the limit block realizes the limit operation of the sleeve block moving upward. The slide plate carries two limit rings and the measuring cable moves upward and stretches synchronously, the measuring cable pulls the vertical tension sensor, the concave sleeve block carries two pull rods to pull, the pull rod carries two pull ears to pull, the steel structure frame is pulled on the frame, and the vertical tension force measurement is realized at different points on the multiple steel structure frames to avoid the offset and shaking of the measuring cable.

[0012] Preferably, the transverse synchronous guide mechanism comprises two connecting blocks fixedly arranged below the outer wall of the guide groove ring; a directional groove column is welded on one side of each connecting block, and a groove sleeve is slidably connected to the outer wall of the directional groove column, and the top ends of the two groove sleeves are fixedly connected to the support ring; a groove block is fixedly installed at one end of each directional groove column, a tail cable is fixedly connected to the inner wall of the groove block, and a transverse cable fixedly connected to the groove block is provided at the top of the tail cable, and a transverse tension sensor for measuring tension force is fixedly installed at one end of the transverse cable; an anchor rod is fixedly installed at one end of the transverse tension sensor, two reinforcement ears are fixedly connected to the outer wall of the anchor rod, and a steel structure beam is fixedly installed on one side of the reinforcement ear. The center point of the transverse cable is on the same horizontal line as the center point of one end of the anchor rod, and the vertical cross-section shape of the anchor rod is set to be circular, and a support shaft and a mounting plate are provided in sequence from top to bottom below the steel structure beam, and the mounting plate and the steel structure beam are fixedly connected to the support shaft.

[0013] When the prestressed steel structure cable tensioning device for accurately measuring the tensioning force of the present technical solution is in use, the guide groove ring moves to the left while driving the two connecting blocks to move to the left, the directional groove column realizes guided sliding along the inner wall of the groove sleeve, the directional groove column drives the groove block to move to the left, the transverse cable drives the transverse tension sensor to realize pulling, the transverse tension sensor drives the anchor rod to pull, the two reinforcement ears enable the steel structure beam to provide transverse tension, and synchronously realizes transverse guided tensioning at two points in front and rear of the steel structure beam to avoid shaking of the tail cable, so as to measure the specific tensioning force value of the prestressed steel structure.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention adopts a guiding and positioning mechanism, which firmly supports the support ring through the guide bar column, and can provide a stable supporting force for the support ring. The two hydraulic cylinders push the two push rods to move left respectively, and the push rods drive the guide groove ring to move left. The guide groove ring can be guided and positioned to move left along the groove body of the outer wall of the guide bar column. The double-point multi-groove body realizes the fitting guiding left movement, and can apply the tension of multiple vertical measuring cables and the tension of two horizontal cables at the same point. Multiple cables avoid displacement and shaking caused by force during the pulling process, and can simultaneously realize accurate measurement of tension at different points of the steel structure, greatly improving the measurement accuracy.

[0016] 2. The present invention uses a vertical synchronous guiding mechanism. The leftward movement of the guide groove ring will synchronously drive multiple concave blocks to move leftward. The multiple concave blocks respectively drive multiple hinge shafts to move leftward. The concave support block drives the sleeve block to move upward, and the sleeve block can move upward along the outer wall of the guide column. The slide plate carries two limit rings and the measuring cable to move upward and stretch synchronously. The vertical tension sensor pulls the concave sleeve block, and the concave sleeve block carries two pull rods to pull. The steel structure frame is pulled on the frame, and vertical guiding movement is synchronously realized for different points on the multiple steel structure frames to realize tension measurement, thereby greatly improving the measurement accuracy.

[0017] 3. The present invention utilizes a transverse synchronous guiding mechanism, which drives the two connecting blocks to move left while moving left through the guide groove ring. The two connecting blocks respectively carry two directional groove columns to achieve left movement. The groove block carries a tail cable to move the transverse cable to the left. The transverse cable drives the transverse tension sensor to achieve pulling. The anchor rod causes the two reinforcement ears to move left and pull. The two reinforcement ears provide transverse tension for the steel structure beam, and synchronously realizes transverse guide tension measurement at two points in front and rear of the steel structure beam to avoid shaking. Synchronously, the tension force is accurately measured at different points of the steel structure, and the measurement accuracy is better.

[0018] According to the mutual influence of the above-mentioned multiple effects, first, the guide groove ring can be guided and positioned to the left along the groove body of the outer wall of the guide column, and then the vertical guide movement can be realized at different points on multiple steel structure frames to realize the tension measurement, and finally the horizontal guide tension measurement can be realized at the front and rear points of the steel structure beam. In summary, the tension force of the test can be applied at one point, and multiple measuring cables and two horizontal cables can be guided and measured during the pulling process to avoid the offset and shaking caused by the force. The tension force can be accurately measured at different points of the steel structure at the same time, greatly improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the overall structure of a prestressed steel structure cable tensioning device for accurately measuring tensioning force.

[0020] Figure 2 It is a schematic diagram of the partial structure of the connection between the guide groove ring and the concave block of the present invention.

[0021] Figure 3 It is a schematic diagram of the partial structure of the connection between the sleeve rod and the push shaft of the present invention when viewed from above.

[0022] Figure 4 It is a schematic diagram of the partial structure of the connection between the slide plate and the measuring cable of the present invention.

[0023] Figure 5 It is a rear view structural schematic diagram of the prestressed steel structure cable tensioning device for accurately measuring tensioning force of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the prestressed steel structure cable tensioning device for accurately measuring tensioning force of the present invention when viewed from above.

[0025] Figure 7 It is a schematic diagram of the partial structure of the connection between the transverse cable and the tail cable of the present invention.

[0026] Figure 8 It is a schematic diagram of the partial structure of the connection between the support shaft and the steel structure beam of the present invention.

[0027] The accompanying drawings are marked as follows: 1. mounting seat; 2. pillar; 3. guide bar column; 4. guide groove ring; 5. push rod; 6. hydraulic cylinder; 7. support ring; 8. controller; 9. concave block; 10. hinge shaft; 11. sleeve rod; 12. push shaft; 13. concave support block; 14. sleeve block; 15. guide column; 16. slide plate; 17. measuring cable; 18. limit ring; 19. vertical tension sensor; 20. concave sleeve block; 21. pull rod; 22. pull ear; 23. steel structure frame; 24. frame; 25. limit block; 26. connecting block; 27. directional groove column; 28. groove sleeve; 29. ​​pull groove block; 30. tail cable; 31. lateral cable; 32. lateral tension sensor; 33. anchor rod; 34. reinforcement ear; 35. steel structure beam; 36. support shaft; 37. mounting plate. DETAILED DESCRIPTION

[0028] 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.

[0029] As attached Figure 1-8 A prestressed steel structure cable tensioning device for accurately measuring tensioning force is shown. The prestressed steel structure cable tensioning device for accurately measuring tensioning force is provided with a guiding and positioning mechanism, a vertical synchronous guiding mechanism, and a horizontal synchronous guiding mechanism. The settings of each mechanism and component can apply the test tensioning force at one point. Multiple measuring cables 17 and two horizontal cables 31 are guided and measured during the pulling process to avoid displacement and shaking caused by force. The tensioning force can be accurately measured at different points of the steel structure at the same time, greatly improving the measurement accuracy. The specific structural settings of each mechanism are as follows.

[0030] In this technical solution, as shown in the attached Figure 1-6As shown, the pillar 2 is welded between the two mounting seats 1, the guide bar 3 is welded on the outer wall of the pillar 2, and the outer wall of the guide bar 3 is provided with a guide positioning mechanism; the guide positioning mechanism includes a guide groove ring 4 slidably arranged on the outer wall of the guide bar 3, and two push rods 5 are fixedly installed on one side of the guide groove ring 4, and one end of the two push rods 5 is fixedly installed with a hydraulic cylinder 6; the other side of the guide groove ring 4 is provided with a support ring 7 welded to the outer wall of the pillar 2, and a controller 8 is fixedly installed on one side of the pillar 2 and below the hydraulic cylinder 6; a vertical synchronous guide mechanism is provided above the outer wall of the guide groove ring 4; a horizontal synchronous guide mechanism is provided below the outer wall of the guide groove ring 4, the two mounting seats 1 are symmetrically arranged with respect to the pillar 2, and the vertical cross-sectional shape of the two mounting seats 1 is set to T-shaped; the two mounting seats 1 and the pillar 2 are all made of stainless steel, the two hydraulic cylinders 6 are symmetrically arranged with respect to the mounting seat 1, and the two hydraulic cylinders 6 are fixedly connected to the mounting seat 1.

[0031] In this embodiment, as shown in the attached Figure 1-5 As shown, the vertical synchronous guide mechanism includes a plurality of concave blocks 9 fixedly arranged above the outer wall of the guide groove ring 4; an articulation shaft 10 is welded to the inner wall of each concave block 9, and a sleeve rod 11 is rotatably connected to the outer wall of the articulation shaft 10, a push shaft 12 is rotatably connected to the inner wall of the sleeve rod 11 and away from the articulation shaft 10, and a concave support block 13 is welded to one end of the push shaft 12; a sleeve block 14 is integrally formed by die-casting on one side of the concave support block 13, a guide column 15 is slidably connected to the inner wall of the sleeve block 14, the bottom ends of the plurality of guide columns 15 are fixedly connected to the support ring 7, and a slide plate 16 is fixedly connected to one side of the outer wall of the sleeve block 14, and a measuring cable 17 is fixedly connected to the inner wall of the slide plate 16 and near its top.

[0032] The outer wall of the measuring cable 17 and the top and bottom surfaces of the slide plate 16 are fixedly connected to the limit ring 18, and the bottom end of the measuring cable 17 is fixedly installed with a vertical tension sensor 19 for tension sensing; the bottom end of the vertical tension sensor 19 is fixedly installed with a concave sleeve block 20, and the inner wall of the concave sleeve block 20 is fixedly connected to two pull rods 21, and two pull ears 22 are provided on both sides of the concave sleeve block 20, and the pull ears 22 are fixedly connected to the pull rods 21, and one side of the pull ear 22 is provided with a steel structure frame 23 welded to the concave sleeve block 20, and the pull ear 22 and the steel The structural frames 23 are fixedly connected, and a frame 24 is welded to the bottom end of the steel structural frame 23. The center point of the push shaft 12 is higher than the center point of the hinge shaft 10, and the vertical cross-sectional shapes of the push shaft 12 and the hinge shaft 10 are both set to be circular. The sleeve rod 11 is rotatably connected to the concave block 9, and multiple guide columns 15 are arranged in an arc with equal distances. The concave support block 13 is fixedly connected to the slide plate 16, and multiple concave support blocks 13 are arranged in an arc with equal distances; a limit block 25 for limiting the sleeve block 14 is fixedly installed on the top of the guide column 15.

[0033] In this embodiment, as shown in the attached Figure 6-8 As shown, the lateral synchronous guide mechanism includes two connecting blocks 26 fixedly arranged below the outer wall of the guide groove ring 4; a directional groove column 27 is welded on one side of each connecting block 26, and a groove sleeve 28 is slidably connected to the outer wall of the directional groove column 27, and the top ends of the two groove sleeves 28 are fixedly connected to the support ring 7; a groove block 29 is fixedly installed at one end of each directional groove column 27, and a tail cable 30 is fixedly connected to the inner wall of the groove block 29, and a lateral cable 31 fixedly connected to the groove block 29 is provided at the top of the tail cable 30, and one end of the lateral cable 31 is fixedly installed A lateral tension sensor 32 for measuring tension force is installed; an anchor rod 33 is fixedly installed at one end of the lateral tension sensor 32, two reinforcement ears 34 are fixedly connected to the outer wall of the anchor rod 33, and a steel structure beam 35 is fixedly installed on one side of the reinforcement ear 34, the center point of the lateral cable 31 and the center point of one end of the anchor rod 33 are on the same horizontal line, and the vertical cross-section shape of the anchor rod 33 is set to be circular, and a support shaft 36 and a mounting plate 37 are arranged in sequence below the steel structure beam 35 from top to bottom, and the mounting plate 37 and the steel structure beam 35 are fixedly connected to the support shaft 36.

[0034] The working principle of the prestressed steel structure cable tensioning device for accurately measuring tension force of the present invention is as follows:

[0035] First, when the present invention is installed, the mounting plate 37 is fixed in the model measurement area by bolts, and at the same time, the mounting plate 37 supports the support shaft 36, and the support shaft 36 provides support force for the steel structure beam 35, so that the steel structure beam 35 provides support force for the frame 24, and the frame 24 provides support force for the three steel structure frames 23, and then the two mounting seats 1 are fixed in the model measurement area by bolts.

[0036] Secondly, during the guiding and positioning of the present invention, the two mounting seats 1 provide support force to the pillars 2, and the pillars 2 provide support force to the guide bars 3. The guide bars 3 firmly support the support ring 7, which can provide stable support force to the support ring 7. Then the two hydraulic cylinders 6 are started by the controller 8, and the two hydraulic cylinders 6 push the two push rods 5 to move left respectively, and the push rods 5 drive the guide groove ring 4 to move left, and the support ring 7 supports the guide bar 3. The guide groove ring 4 can be guided and positioned to move left along the groove body of the outer wall of the guide bar 3, so as to avoid the guide groove ring 4 from deflecting and shaking during the movement.

[0037] At the same time, when the present invention is vertically synchronously guided, the guide groove ring 4 moves leftward and simultaneously drives the multiple concave blocks 9 to move leftward. The multiple concave blocks 9 respectively drive the multiple hinge shafts 10 to move leftward. The hinge shaft 10 carries the bottom of the sleeve rod 11 to move leftward, and the top of the sleeve rod 11 drives the push shaft 12 to move upward. The push shaft 12 carries the concave support block 13 to move upward. The concave support block 13 drives the sleeve block 14 to move upward, and the sleeve block 14 can move upward along the outer wall of the guide column 15. The support ring 7 provides a firm support force for the multiple guide columns 15, and the limit block 25 realizes a limit operation on the upward movement of the sleeve block 14.

[0038] The sleeve block 14 drives the slide plate 16 to move upward, and the slide plate 16 carries two limit rings 18 and a measuring cable 17 to move upward and stretch synchronously, and the measuring cable 17 pulls the vertical tension sensor 19, and the vertical tension sensor 19 pulls the concave sleeve block 20, and the concave sleeve block 20 carries two pull rods 21 for pulling, and the pull rod 21 carries two pull ears 22 to achieve pulling, and the pull ears 22 pull the steel structure frame 23, and the steel structure frame 23 is pulled on the frame 24, so that vertical tension measurement can be realized at different points on multiple steel structure frames 23, avoiding the offset and shaking of the measuring cable 17, and sensing the specific tension value through multiple vertical tension sensors 19, and the tension value is displayed on the screen of the controller 8.

[0039] At the same time, when the present invention is horizontally synchronously guided, the guide groove ring 4 drives the two connecting blocks 26 to move leftward while moving leftward. The two connecting blocks 26 carry two directional groove columns 27 to move leftward respectively. The directional groove columns 27 realize guided sliding along the inner wall of the groove sleeve 28. At the same time, the directional groove column 27 drives the groove block 29 to move leftward. The groove block 29 carries the tail cable 30 to move the transverse cable 31 to the left. The transverse cable 31 drives the transverse tension sensor 32 to pull. The transverse tension sensor 32 drives the anchor rod 33 to pull. The anchor rod 33 causes the two reinforcement ears 34 to move leftward and pull. The two reinforcement ears 34 provide transverse tension for the steel structure beam 35, and synchronously realize transverse guided tensioning at the front and rear points of the steel structure beam 35. The tensioning stability is greatly improved, and the shaking of the tail cable 30 is avoided. The tensioning force value detected by the transverse tension sensor 32 is displayed on the controller 8, and the specific tensioning force value of the prestressed steel structure can be measured.

[0040] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prestressed steel structure cable tensioning device for accurately measuring tension force, comprising two mounting seats (1), a support (2) and a guide bar (3), characterized in that: The pillar (2) is welded between the two mounting seats (1), the guide bar (3) is welded to the outer wall of the pillar (2), and the outer wall of the guide bar (3) is provided with a guide positioning mechanism; The guide positioning mechanism comprises a guide groove ring (4) slidably arranged on the outer wall of the guide bar (3), and two push rods (5) are fixedly mounted on one side of the guide groove ring (4), and a hydraulic cylinder (6) is fixedly mounted on one end of each of the two push rods (5); A support ring (7) welded to the outer wall of the support column (2) is provided on the other side of the guide groove ring (4); a controller (8) is fixedly mounted on one side of the support column (2) and located below the hydraulic cylinder (6); A vertical synchronous guide mechanism is provided above the outer wall of the guide groove ring (4); A transverse synchronous guiding mechanism is provided below the outer wall of the guide groove ring (4); The vertical synchronous guide mechanism comprises a plurality of concave blocks (9) fixedly arranged above the outer wall of the guide groove ring (4); The inner wall of each concave block (9) is welded with a hinge shaft (10), and the outer wall of the hinge shaft (10) is rotatably connected to a sleeve rod (11), the inner wall of the sleeve rod (11) is rotatably connected to a push shaft (12) away from the hinge shaft (10), and one end of the push shaft (12) is welded with a concave support block (13); A sleeve block (14) is integrally formed on one side of the concave support block (13) by die-casting, a guide column (15) is slidably connected to the inner wall of the sleeve block (14), the bottom ends of a plurality of guide columns (15) are fixedly connected to the support ring (7), and a slide plate (16) is fixedly connected to one side of the outer wall of the sleeve block (14), and a measuring cable (17) is fixedly connected to the inner wall of the slide plate (16) and near its top; The outer wall of the measuring cable (17) and the top and bottom surfaces of the slide plate (16) are fixedly connected to a limit ring (18), and the bottom end of the measuring cable (17) is fixedly installed with a vertical tension sensor (19) for tension sensing; A concave sleeve block (20) is fixedly mounted at the bottom end of the vertical tension sensor (19); two pull rods (21) are fixedly connected to the inner wall of the concave sleeve block (20); two pull ears (22) are provided on both sides of the concave sleeve block (20); the pull ears (22) are fixedly connected to the pull rods (21); a steel structure frame (23) welded to the concave sleeve block (20) is provided on one side of the pull ear (22); the pull ear (22) is fixedly connected to the steel structure frame (23); and a frame (24) is welded to the bottom end of the steel structure frame (23).

2. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1 is characterized in that: The two mounting seats (1) are symmetrically arranged with respect to the pillar (2), and the vertical cross-section shape of the two mounting seats (1) is set to be T-shaped; The two mounting seats (1) and the support pillar (2) are both made of stainless steel.

3. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1 is characterized in that: The two hydraulic cylinders (6) are symmetrically arranged with respect to the mounting seat (1), and the two hydraulic cylinders (6) are fixedly connected to the mounting seat (1).

4. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1 is characterized in that: The center point of the push shaft (12) is higher than the center point of the hinge shaft (10), and the vertical cross-section shapes of the push shaft (12) and the hinge shaft (10) are both circular.

5. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1, characterized in that: The sleeve rod (11) is rotatably connected to the concave block (9), and a plurality of guide posts (15) are arranged in an arc-shaped manner and are equidistantly distributed.

6. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1, characterized in that: The concave support block (13) is fixedly connected to the slide plate (16), and a plurality of the concave support blocks (13) are arranged in an arc-shaped manner and are equidistantly distributed; A limiting block (25) for limiting the sleeve block (14) is fixedly mounted on the top end of the guide column (15).

7. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 1, characterized in that: The transverse synchronous guide mechanism comprises two connecting blocks (26) fixedly arranged below the outer wall of the guide groove ring (4); A directional slot column (27) is welded to one side of each of the connection blocks (26), and a slot sleeve (28) is slidably connected to the outer wall of the directional slot column (27), and the top ends of the two slot sleeves (28) are fixedly connected to the support ring (7); A groove block (29) is fixedly mounted on one end of each directional groove column (27); a tail cable (30) is fixedly connected to the inner wall of the groove block (29); a transverse cable (31) fixedly connected to the groove block (29) is provided at the top end of the tail cable (30); a transverse tension sensor (32) for measuring tension force is fixedly mounted on one end of the transverse cable (31); An anchor rod (33) is fixedly mounted on one end of the lateral tension sensor (32), two reinforcement ears (34) are fixedly connected to the outer wall of the anchor rod (33), and a steel structure beam (35) is fixedly mounted on one side of the reinforcement ear (34).

8. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 7, characterized in that: The center point of the transverse cable (31) and the center point of one end of the anchor rod (33) are located on the same horizontal line, and the vertical cross-section of the anchor rod (33) is set to be circular.

9. The prestressed steel structure cable tensioning device for accurately measuring tensioning force according to claim 7, characterized in that: A support shaft (36) and a mounting plate (37) are provided in sequence from top to bottom below the steel structure beam (35), and the mounting plate (37) and the steel structure beam (35) are both fixedly connected to the support shaft (36).

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