Anti-torsion quick penetrating tool for prestressed steel strand and using method

Abstract

The invention relates to the technical field of bridge engineering, in particular to an anti-torsion quick penetrating tool for a prestressed steel strand and a using method. Comprising an anchorage device positioning plate, an anchorage device fixing plate, a branching unit and an anti-torsion positioning unit, and the anchorage device positioning plate and the anchorage device fixing plate are the same in structure; the anti-torsion positioning unit comprises a first gear, a second gear and a third gear which rotate in a linkage mode from bottom to top, one end of the first gear is connected with a spring assembly, the spring assembly is connected with a firing pin restorer, and the firing pin restorer is provided with a reset pin corresponding to an anchorage device positioning plate hole site; the anchorage device fixing plate is tightly sleeved in the gear III and rotates along with the gear III, and the gear III is detachable after the anchorage device fixing plate completes strand pulling; the branching unit comprises a deconcentrator, and the narrowing end of the branching unit can lead a steel strand into a hole site of an anchorage device fixing plate; a supporting cylinder rotating along with the third gear is arranged on the side, away from the beam end, of the third gear. According to the scheme, accurate perforation is achieved, and the problem of twisting of the steel strand is fundamentally solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering, and particularly relates to a prestressed steel strand anti-twist rapid threading tool and a use method. BACKGROUND

[0002] In the prestressed construction of steel strand, the following problems exist when the steel strand is threaded into the working anchor:

[0003] 1. The steel strand is prone to twisting: multiple steel strands are prone to twisting, which causes uneven stress and affects the tensioning accuracy.

[0004] 2. Low efficiency or no line separation: manual line separation is time-consuming and labor-intensive, and is prone to misalignment or intersection.

[0005] 3. Slow anchor threading speed: the traditional threading worker holds the anchor with one hand and pushes the steel strand into the anchor hole of the working anchor with the other hand, which is labor-intensive and slow.

[0006] Therefore, in view of the above construction problems, a steel strand anti-twist threading tool is needed to solve the above problems. SUMMARY

[0007] The present application solves the problem of providing a steel strand anti-twist threading tool.

[0008] In view of the deficiencies of the prior art, the technical solution adopted by the present application to solve the technical problems is: a prestressed steel strand anti-twist rapid threading tool and a use method, comprising a work platform, the work platform is provided with an anchor positioning plate, an anchor fixing plate, a line separation unit and an anti-twist positioning unit, the anchor positioning plate and the anchor fixing plate are the same in structure; the anti-twist positioning unit comprises gear one, gear two and gear three which rotate in linkage from bottom to top, one end of the gear one is connected with a spring assembly, the spring assembly is connected with a striker which can be inserted into the hole position of the anchor positioning plate, the end of the anchor positioning plate away from the striker is provided with a striker resetter for pushing the striker out of the hole position and switching to the next station, the striker resetter is provided with a reset pin corresponding to the hole position of the anchor positioning plate; the anchor fixing plate is tightly sleeved in the gear three and rotates with the gear three, the gear three can be detached after the anchor fixing plate completes the threading; the line separation unit comprises a detachable line separator in the shape of a horn, the side surface of the line separator is provided with an opening for sliding out the steel strand, one end of the line separator is connected with the beam end and the outlet of the line separator is narrowed to be close to the gear three so as to guide the steel strand into the hole position of the anchor fixing plate; one end of the gear three away from the beam end is provided with a support cylinder which rotates with the gear three.

[0009] Preferably, the spring assembly comprises a striker shaft, and the striker shaft is connected with a hole plate which can adjust the radius of rotation of the striker.

[0010] Preferably, the support cylinder is detachably connected with the gear three end surfaces, and the support cylinder is sleeved in the arc-shaped support which enables the support cylinder to rotate with the gear three, and the arc-shaped support is connected on the operation platform.

[0011] Preferably, the gear three is detachably connected with the support cylinder through the flanging of the end of the support cylinder, and the gear three rotates to drive the support cylinder to rotate synchronously.

[0012] Preferably, the gear three comprises a gear three a part and a gear three b part, the gear three a part and the gear three b part are detachably connected and the anchor fixing plate is clamped into the gear three, and the gear three can be disassembled after the anchor fixing plate completes the threading.

[0013] Preferably, the operation platform is further provided with a first support and a second support which are respectively connected with the anchor positioning plate and the striker resetter.

[0014] Preferably, the gear one and the gear two are both provided with bearings at the center, and the bearings are connected with the fixed frame through the fixed shaft.

[0015] A use method of a prestressed steel strand anti-twisting rapid threading tool, comprising the following steps:

[0016] S1: line guiding, the automatic threading machine threads the steel strand into the anchor through the tensioning hole from the entrance according to the anchor hole number, and separates the single steel strand according to the entrance anchor number through the horn mouth guiding groove of the line separator; the separated steel strand completes the single steel strand threading after passing through the predetermined hole of the anchor fixing plate of the gear three;

[0017] S2: hole positioning, the clockwise rotating handle drives the gear one to rotate in turn, and drives the gear two and the gear three to rotate, and drives the support cylinder to rotate; the striker is automatically pushed into the current target hole of the anchor positioning plate under the action of the spring assembly, and locks the steel strand threading hole;

[0018] S3: anchor threading and locking: the steel strand is threaded into the corresponding hole of the anchor fixing plate of the line separator after being threaded out from the beam end;

[0019] S4: station switching: the striker resetter is used to approach the anchor positioning plate, the reset pin pushes the striker, and the striker is separated from the current hole; after the steel strand threaded and positioned slides out of the gap of the line separator, the handle is rotated to the next target hole, and the striker is pushed into the new hole again;

[0020] S5: cycle operation: repeat S3-S4 until the threading of the same radius hole is completed.

[0021] Preferably, the step S4 further comprises striker radius adjustment, and the specific steps are as follows: when switching to a different radius hole area, the connection hole of the striker on the striker rotating shaft is adjusted to match the target hole distribution radius.

[0022] Preferably, after step S5, the splitter is replaced with a splitter that is adapted to the inner hole position of the anchor fixing plate; and the radius adjustment of the striker in step S4 is performed synchronously.

[0023] The beneficial effects of the present application are as follows: the present application positions the hole position of the strand by the anchor positioning plate 10 cooperating with the anti-twist positioning unit, accurately perforates the hole by the anchor fixing plate and the splitter unit, and links the anti-twist positioning unit and the splitter unit by the gear three including the anchor fixing plate, thereby fundamentally solving the problem of the steel strand twisting; the anti-twist positioning unit accurately positions the target hole position, eliminates the twisting of the strand caused by the mispositioning of the manual splitter, causes the prestress loss, and affects the steel strand tensioning quality. The efficiency of the anchor is improved by 5 times compared with the manual threading, the automatic threading machine directly threads the anchor hole through the guide groove, solves the problem that the traditional threading machine cannot split the line, and avoids the phenomenon of steel strand twisting. The prestress loss of the traditional scheme due to the twisting is 5%-10%, the spring assembly is set to lock the position of the steel strand, the striker returner restores the rotation of the striker, the adjustable striker radius is designed, and various anchor specifications such as 12-15 holes are adapted. The prestress loss rate is reduced during the steel strand tensioning process after the threading of the present application, and the efficiency is obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure schematic diagram of the anchor positioning plate of the present application;

[0025] Figure 2 is a structure schematic diagram of the gear one of the present application;

[0026] Figure 3 is a connection schematic diagram of the spring assembly and the gear one of the present application;

[0027] Figure 4 is a schematic diagram of the spring assembly of the present application;

[0028] Figure 5 is a schematic diagram of the present application when the tool is used;

[0029] Figure 6 is a front view of the gear three of the present application;

[0030] Figure 7 is an axonometric view of the gear three of the present application;

[0031] Figure 8 is a schematic diagram of the support cylinder installation of the present application;

[0032] Figure 9 is a structure schematic diagram of the splitter of the present application;

[0033] 10, anchor positioning plate; 11, anchor fixing plate; 12, first support; 13, second support; 14, fixing frame; 15, central shaft; 16, first connecting flange; 17, first bearing; 20, gear one; 21, bolt hole; 30, spring assembly; 301, groove; 31, baffle; 32, striker pivot; 33, hole plate; 34, striker; 321, steel bar buckle; 40, rotating handle; 50, striker restorer; 501, handle; 502, reset pin; 60, gear two; 61, second flange; 62, flange shaft; 63, second bearing; 64, second connecting flange; 70, gear three; 711, bolt one; 712, hole gasket; 713, bolt two; 80, line divider; 81, notch; 90, support cylinder; 91, arc-shaped support; 92, support leg; 93, ball; 94, end fixing member; 95, magnetic positioner; 100, operation platform. DETAILED DESCRIPTION

[0034] The application will be described in further detail below with reference to the drawings and specific embodiments. The embodiments of the application are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

[0035] Before traditional threading, the steel strands need to be numbered (corresponding steel strands are threaded into corresponding anchor holes) to prevent the steel strands from twisting, which is time-consuming and labor-intensive and affects work efficiency. After traditional threading, whether manual threading or automatic threading machine threading, the steel strands are stacked together after threading is completed, especially when the number of strands exceeds 12, which is particularly obvious. It is extremely easy to form twisted steel strands, resulting in loss of prestress, inaccuracy, and quality and safety hazards during tensioning.

[0036] In order to solve the above technical problems, the present invention provides a prestressed steel strand anti-twist fast passing tool, including an anchor positioning plate 10, an anchor fixing plate 11, a line dividing unit and an anti-twist positioning unit. The anchor positioning plate 10 and the anchor fixing plate 11 have the same structure; the anti-twist positioning unit includes gear 1 20, gear 2 60, and gear 3 70 that rotate in a linked manner from bottom to top. Gear 1 20 and gear 2 60 both have a central opening and a bearing, and the bearing is connected to the fixed frame through a fixed shaft. One end of gear 1 20 is connected to a spring assembly 30, and the spring assembly 30 is connected to a striker 34 that can be inserted into the hole of the anchor positioning plate 10. The spring assembly 30 includes a striker shaft 32, and the striker shaft 32 is connected to a hole plate 33 that can adjust the rotation radius of the striker 34. The end of the anchor positioning plate 10 that is different from the striker 34 is provided with a striker resetter 50 for pushing the striker 34 out of the hole position and switching to the next work station. The striker resetter 50 is provided with a reset pin 502 corresponding to the hole position of the anchor positioning plate 10; the anchor fixing plate 11 is tightly fitted in the gear three 70 and rotates with the gear three 70. After the anchor fixing plate 11 completes the bundle insertion, the gear three 70 can be removed; the line dividing unit includes a line divider 80, such as Figure 9 The side of the wire splitter 80 is provided with a notch 81 for sliding the steel strands out. The inlet of the wire splitter 80 is connected to the beam end, and its outlet is close to the gear 3 70. The wire splitter 80 is trumpet-shaped (removable after the stranding is completed), and the narrowed outlet end can guide the steel strands into the holes of the anchor fixing plate 11. The end of the gear 3 70 away from the beam end is provided with a support tube 90 that rotates with the gear 3 70. The support tube 90 is detachably connected to the end face of the gear 3 70 and is sleeved within an arc-shaped bracket 91 that allows the support tube 90 to rotate with the gear 3 70. The side of the arc-shaped bracket 91 is fixed to the work platform 100 by four legs 92. The gear 3 70 is detachably connected to the support tube 90 through the flange at the end of the support tube 90. The rotation of the gear 3 70 drives the support tube 90 to rotate synchronously. Gear 3 70 comprises Gear 3a and Gear 3b, which are detachably connected. The anchor plate 11 is inserted into Gear 3 70, allowing Gear 3 70 to be disassembled after the anchor plate 11 is threaded. The work platform 100 is also equipped with a first bracket 12 and a second bracket 13, which connect to the anchor positioning plate 10 and the striker resetter 50, respectively. The work platform 100 is mounted on a lifting platform or a lifting work trolley to accommodate anchor threading at various heights. These lifting platforms and lifting work trolleys are conventional and will not be described in detail.

[0037] A method for using a prestressed steel strand anti-twist fast threading tool comprises the following steps:

[0038] S1: Line guide, the automatic threading machine threads the steel strand from the entrance according to the anchor hole number through the tensioning hole, and the separated single steel strand is guided through the horn mouth guide groove of the line separator 80 according to the anchor number at the entrance; the separated steel strand is threaded through the predetermined hole of the anchor fixing plate 11 of the gear three 70 to complete the threading of the single steel strand;

[0039] S2: Hole positioning, counterclockwise rotation of the handle 40 drives the gear one 20 to sequentially link the gear two 60 and the gear three 70 to drive the support cylinder 90 to rotate; the striker 34 is automatically pushed into the current target hole of the anchor positioning plate 10 under the action of the spring assembly 30, and the steel strand is locked in the anchor hole;

[0040] S3: Anchor threading and locking: the steel strand is threaded into the corresponding hole of the anchor fixing plate 11 from the beam end;

[0041] S4: Workstation switching: the striker resetter 50 is used to approach the anchor positioning plate 10, the reset pin 502 pushes the striker 34, and the striker 34 is separated from the current hole; after the threaded steel strand is slid out of the gap 81 of the line separator 80, the handle 40 is rotated to the next target hole, and the striker 34 is again pushed into the new hole to lock; the striker 34 radius adjustment in step S4 is as follows: when switching to different radius hole regions, the connection hole of the striker 34 on the striker shaft 32 is adjusted to match the target hole distribution radius.

[0042] S5: Cycle operation: repeat S3-S4 until the threading of the same radius hole is completed. After step S5, the line separator 80 is replaced by a line separator suitable for the inner circle hole of the anchor fixing plate 11; the striker 34 radius adjustment in step S4 is performed synchronously.

[0043] The tooling solves the above technical problems through the horn mouth guide line separator 80 cooperating with the anti-twist positioning unit to guide and prevent twisting and quickly pass through the anchor fixing plate 11, and is suitable for prestressed engineering such as railway bridges, highway bridges, continuous beams, and cast-in-place beams. The traditional method takes 3 hours to complete 25 holes 338 steel strands threading anchors by 3 people, and 3 times of twisting and rework occur. When using the tooling, 3 people operate for 1 hour without rework, and the steel strand stress uniformity is improved by 90%. Most importantly, the steel strand is not twisted, which ensures that the prestress is not lost, accurate, and ensures construction quality and safety.

[0044] The branching unit adopts a replaceable and detachable trumpet mouth branching device 80. The branching device 80 includes a branching device matched with the inner hole position of the anchor fixing plate 11 and a branching device matched with the outer hole position of the anchor fixing plate 11. The hole diameter of the anchor fixing plate 11 matches the diameter of the steel strand (such as Φ15.2 mm), and the disc surface is opened according to the hole position of the anchor positioning plate 10. The branching device 80 is made of high-strength aluminum alloy, and the surface is plated with hard chromium to reduce the friction coefficient. The trumpet mouth guide groove is arranged at the outlet of the branching device 80, and each steel strand is guided through the trumpet mouth guide groove to the anchor fixing plate 11 wrapped in the gear three 70. The automatic threading machine is guided through the trumpet mouth branching device 80 to quickly pass through the anchor fixing plate 11 (the automatic threading machine is prior art). The anchor positioning plate 10 is modularly designed and can be quickly replaced to adapt to different anchor specifications (such as 12 holes, 14 holes, and 15 holes). The inlet end of the branching device 80 is detachably connected with the beam end through the screw thread in the grouting hole of the pre-buried anchor pad plate at the beam end (this is a common technology in construction, which will not be described in detail).

[0045] As shown in Figure 1 , the 15-hole anchor positioning plate 10 (processed according to the 15-hole anchor on site) has the order numbers 1-15 as the order of the holes, and the circular holes 1-15 are cut through (which needs to be precise and accurate to ensure the accurate positioning of the steel strand in the later period). The material is a 2 mm steel plate, and the hole diameter is 19 mm. The structure of the anchor fixing plate 11 wrapped by the gear three 70 is completely the same as that of the anchor positioning plate 10.

[0046] As shown in Figure 5 , the gear one 20 is designed with a central shaft 15, the gear one 20 is rotationally matched with the central shaft 15 through the first bearing 17, the other end of the central shaft 15 is fixed with the fixed frame 14 through the first connecting flange 16, the gear one 20 can rotate freely around the circumference, the gear one 20 is designed with triangular bolt holes 21 at equal distances from the center, the bolt penetrates the baffle 31 and the bolt hole 21 of the gear one 20 to connect the baffle 31 and the gear one 20. The fixing mode of the gear two 60 is similar to that of the gear one 20, but the left end of the gear two 60 is not provided with a baffle and is provided with a second flange 61 of a connecting flange shaft 62, the second flange 61 is located at the left end of the gear two 60, the second bearing 63 is sleeved on the flange shaft 62 and penetrates the central hole of the gear two 60 and is fixed on the fixed frame 14 through the second connecting flange 64, to ensure that the gear one 20 and the gear two 60 rotate synchronously and coplanarly. The fixed frame 14 is stably connected with the operation platform 100, the operation platform 100 provides a stable working surface, and the operation platform 100 is further provided with a first support 12 and a second support 13, the first support 12 and the second support 13 are respectively used for placing the anchor positioning plate 10 and the striker return device 50.

[0047] Figure 3 , 4As shown, one end of gear one 20 is connected with spring assembly 30 through baffle 31, baffle 31 is welded with spring assembly 30, one end of spring assembly 30 connected with baffle 31 has groove 301, three bolt holes are designed on baffle 31 to connect with bolt holes on gear one 20 as a whole; striker 34 is designed in advance according to anchor hole position, striker 34 is detachable; spring sleeve of spring assembly 30 is arranged outside striker shaft 32. Steel buckle 321 is arranged at the end of striker shaft 32, steel buckle 321 can slide in groove 301; striker shaft 32 penetrates spring assembly 30 and one end of striker shaft 32 extends into groove 301 and connects with steel buckle 321, the other end is L-shaped and connects with striker 34, striker 34 and the vertical part of striker shaft 32 are hole plate 33, hole plate 33 and striker 34 are both provided with a plurality of bolt holes to adjust the rotation radius of striker 34. Rotating handle 40 is rotated to make striker 34 extend into anchor positioning plate 10, rotating handle 40 is welded on gear one 20 and does not interfere with middle shaft 15; striker resetter 50 is made of anchor positioning plate 10, a steel head with a diameter of 12mm is welded on the hole position of striker resetter 50 as reset pin 502, the length of reset pin 502 is about 2cm, and a handle 501 is designed at the rear end. Striker resetter 50 includes handle 501, reset pin 502 and round holes on anchor positioning plate 10 correspond one by one. Striker resetter 50, anchor positioning plate 10, striker 34, spring assembly 30 and gear one 20 all work in the same interface.

[0048] Working stage: manually push striker resetter 50, make striker 34 retract under the action of spring, rotate rotating handle 40 counterclockwise, gear one 20 rotates, striker 34 enters the hole of anchor positioning plate 10, striker 34 is clamped under the action of spring, transmission shaft works to position steel strand; when the next steel strand is inserted, striker resetter 50 is used to push striker 34, make striker 34 separate from the hole of anchor positioning plate 10, rotate rotating handle 40, striker 34 enters the next hole, striker 34 is clamped under the action of spring, gear three 70 works to position steel strand; repeat the work until the insertion is completed.

[0049] As Figure 6As shown, the gear three 70 is designed to open the structure including a portion and b portion, a portion and b portion between through four groups of bolts one 711, hole pad 712 and bolt two 713 to achieve detachable connection, bolt one 711, hole pad 712 and bolt two 713 avoid the connection of gear three 70 and support cylinder 90; after completing a set of anchor fixing plate 11, the gear three 70 can be disassembled and transferred to the next process, the a portion and b portion are closed to form a circumferential wrapping anchor fixing plate 11 passive rotation work; the inlet end of the distributor 80 is responsible for connecting with the beam end, the distributor 80 has two sizes respectively suitable for the inner circle hole position radius and the outer circle hole position radius of the anchor fixing plate 11, and at the same time, the outlet end of the distributor 80 is only close to the anchor fixing plate 11, and only by replacing the distributor 80 of different sizes can the inner and outer circle hole positions of the anchor fixing plate 11 be implemented. The diameters of the gear three 70, the gear two 60 and the gear one 20 are the same, the gear one 20 is a driving action, the gear two 60 is a transmission wheel, and the gear three 70 wraps the anchor fixing plate 11 as a perforation positioning action. The distributor 80 is designed as a whole conical horn mouth, which plays a guiding role for the outlet steel strand of the beam end. As shown in Figure 8 As shown, the specific installation mode of the support cylinder 90 is shown, the support cylinder 90 needs to determine the rotation plane of the gear three 70 and rotate together with the gear three 70, and the specific installation mode is as follows: the arc-shaped support 91 is erected on the working platform 100 through four supporting legs 92, and the support cylinder 90 is located in the arc-shaped support 91 and a plurality of ball bearings 93 are arranged between the support cylinder 90 and the arc-shaped support 91; in this way, the rotation of the support cylinder 90 is realized. The height of the supporting leg 92 and the distance between adjacent supporting legs 92 can avoid the spring assembly 30 and other structures on the working platform 100; the end of the arc-shaped support 91 away from the gear three 70 is provided with an end fixing member 94, and the magnetic positioner 95 is arranged between the end fixing member 94 and the support cylinder 90 to limit the steel strand, so as to avoid being too long (the magnetic positioner 95 is prior art, and will not be described in detail).

[0050] According to the number of steel strands to be threaded, the anchor positioning plate 10 is set, taking 15 hole positions as an example; the gear two gear one 20 is engaged and fixed through the fixing frame 14, the rotating gear one 20 works, the gear three 70 is positioned, the distributor 80 outlet is aligned with the hole position of the anchor fixing plate 11, the steel strand is threaded into the hole position to complete the threading; after completing the threading, the striker reset device 50 is used to reset the striker 34, the gear one 20 is rotated again, the gear two 60 and the gear three 70 are rotated to install the next hole, until the 1-10 hole positions are completed. Then the distributor 80 is replaced to adapt to the hole position of the inner circle of the anchor fixing plate 11, the distributor adapted to the hole position of the inner circle of the anchor fixing plate 11 can guide the steel strand into the 11-15 hole positions; at the same time, the connection hole position of the striker 34 and the striker rotating shaft 32 is adjusted to reduce the rotating radius of the striker 34, so that the rotating radius of the striker 34 is the same as the shaft radius of the 11-15 hole positions.

[0051] The application provides a prestressed steel strand anti-twist rapid passing through tool and a use method, and aims to solve the problems of easy twisting of steel strand, misplacement of division and low efficiency of anchor passing in traditional prestressed construction. The key structure of the tool comprises an anchor positioning plate 10 and an anchor fixing plate 11, both of which are the same in structure and are used for accurately locking the anchor hole position of the steel strand. The anti-twist positioning unit is composed of gear one 20, gear two 60 and gear three 70 linked from bottom to top, and the hole position is positioned through rotation driving. The gear one 20 is connected with a spring assembly 30 and an adjustable radius striker 34, the striker 34 is automatically popped into the anchor positioning plate 10 hole position to lock the target position. The gear three 70 is tightly sleeved with the anchor fixing plate 11 and drives the rotation of the anchor fixing plate 11, and can be disassembled after passing through the bundle; the design is a detachable structure a / b part, which is convenient for transferring the process. The division unit comprises a horn-shaped divider 80 arranged at the beam end, the steel strand is separated through the narrow end guide groove and accurately guided into the hole position of the anchor fixing plate 11, and the divider 80 can be replaced to adapt to the hole position of the inner / outer ring of the anchor fixing plate 11. The supporting cylinder 90 determines the rotation surface of the gear three 70, and realizes follow-up support through the arc-shaped support 91 and the ball 93 structure. The striker resetter 50 is provided with a reset pin 502 to push the striker 34 away from the current hole position, and cooperates with the rotation handle 40 to switch the hole position. The adjustable radius striker 34 adjusts the rotation radius of the striker 34 through the hole plate 33, and adapts to different radius anchor holes such as 12-15 hole positioning. The gear linkage + division guide integrated design eliminates the twisting force of the steel strand, and the prestressed loss rate is significantly reduced. The single anchor passing time is shortened from 3 minutes to 30 seconds, and the working hours of a 3-person team is reduced from 3 hours to 1 hour, taking 338 steel strands as an example. The tool is suitable for various anchor specifications, the uniformity of steel strand stress is improved by 90%, and the construction quality and safety are guaranteed.

Claims

1. A prestressed steel strand anti-twist fast passing tool, comprising a work platform (100), on which an anchor positioning plate (10), an anchor fixing plate (11), a line dividing unit and an anti-twist positioning unit are provided, wherein the anchor positioning plate (10) and the anchor fixing plate (11) have the same structure; and characterized in that: The anti-twist positioning unit comprises gear 1 (20), gear 2 (60), and gear 3 (70) which rotate in linkage from bottom to top, one end of gear 1 (20) is connected to a spring assembly (30), the spring assembly (30) is connected to a striker (34) which can be inserted into a hole of the anchor positioning plate (10), and an end of the anchor positioning plate (10) which is different from the striker (34) is provided with a striker resetter (50) for pushing the striker (34) out of the hole and switching to the next station, and a reset pin (52) corresponding to the hole of the anchor positioning plate (10) is provided on the striker resetter (50); the anchor fixing The fixed plate (11) is tightly fitted in the gear three (70) and rotates with the gear three (70). After the anchor fixing plate (11) is completed with the bundle, the gear three (70) can be disassembled; the line dividing unit includes a detachable line divider (80) with a trumpet-shaped guide, and a notch (81) is provided on the side of the line divider (80) for sliding the steel strand out. One end of the line divider (80) is connected to the beam end and its outlet narrowed end is close to the gear three (70) to guide the steel strand into the hole of the anchor fixing plate (11); the end of the gear three (70) away from the beam end is provided with a support tube (90) that rotates with the gear three (70).

2. The anti-twist fast passing tool for prestressed steel strand according to claim 1, characterized in that: The spring assembly (30) comprises a striker rotating shaft (32), and a hole plate (33) capable of adjusting the rotation radius of the striker (34) is connected to the striker rotating shaft (32).

3. The anti-twist fast passing tool for prestressed steel strands according to claim 1 is characterized in that: The support tube (90) is detachably connected to the end surface of the gear three (70), and the support tube (90) is sleeved in an arc-shaped bracket (91) that enables the support tube (90) to rotate along with the gear three (70), and the side of the arc-shaped bracket (91) is connected to the working platform (100).

4. The anti-twist fast passing tool for prestressed steel strands according to claim 2 or 3, characterized in that: The gear three (70) is detachably connected to the support tube (90) through the flange at the end of the support tube (90), and the rotation of the gear three (70) drives the support tube (90) to rotate synchronously.

5. The anti-twist fast passing tool for prestressed steel strands according to claim 4, characterized in that: Gear three (70) includes gear three a part and gear three b part. The gear three a part and gear three b part are detachably connected and the anchor fixing plate (11) is inserted into the gear three (70). After the anchor fixing plate (11) is completely threaded, the gear three (70) can be disassembled.

6. The anti-twist fast passing tool for prestressed steel strands according to claim 1 is characterized in that: The working platform (100) is further provided with a first bracket (12) and a second bracket (13) which are respectively connected to the anchor positioning plate (10) and the striker resetter (50).

7. The anti-twist fast passing tool for prestressed steel strands according to claim 1, characterized in that: Gear 1 (20) and gear 2 (60) are both provided with bearings through central openings, and the bearings are connected to the fixing frame through a fixing shaft.

8. A method for using a prestressed steel strand anti-twist fast threading tool, characterized by: The following steps are involved: S1: wire splitting and guiding, the automatic bundle threading machine inserts the steel strands into the anchor according to the anchor hole number from the entrance through the tensioning channel, and separates the single steel strands one by one according to the anchor number at the entrance through the bell-mouth guide groove of the wire splitter (80); the separated steel strands pass through the predetermined hole position of the anchor fixing plate (11) on the gear three (70) to complete the bundle threading of the single steel strands; S2: Hole positioning, counterclockwise rotation of the handle (40) drives gear 1 (20), which in turn drives gear 2 (60) and gear 3 (70) to drive the support tube (90) to rotate; the striker (34) automatically springs into the current target hole position of the anchor positioning plate (10) under the action of the spring assembly (30), locking the steel strand anchor hole position; S3: Anchoring and locking: the steel strand passes through the beam end and then along the wire divider (80) into the corresponding hole of the anchor fixing plate (11); S4: Workstation switching: Use the striker resetter (50) to approach the anchor positioning plate (10), and the reset pin (52) pushes the striker (34) to make the striker (34) disengage from the current hole position; continue to rotate the handle (40) counterclockwise to complete the positioning of the stranded steel wire and slide out of the notch (81) of the splitter (80), then rotate the handle (40) to the next target hole position, and the striker (34) will be re-entered into the new hole position and locked; S5: Circular operation: Repeat S3-S4 until the bundle is threaded into the hole with the same radius.

9. The method for using the anti-twist fast threading tool for prestressed steel strands according to claim 8, characterized in that: Step S4 also includes adjusting the radius of the striker (34), specifically as follows: when switching to a hole area with a different radius, adjusting the connection hole position of the striker (34) on the striker shaft (32) so that the rotation radius matches the target hole distribution radius.

10. The method for using the anti-twist fast threading tool for prestressed steel strands according to claim 8, characterized in that: After step S5, the method also includes replacing the line divider (80) with a line divider that adapts to the inner circle hole position of the anchor fixing plate (11); and synchronously performing the radius adjustment of the striker (34) in step S4.

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