An accuracy measurement device for the construction of a swivel bridge

Abstract

The present application provides a precision measurement device for the construction of a swivel bridge, which relates to the technical field of the measurement of a rotary bridge and includes a measurement connecting piece, and two synchronous winding pieces are installed on the measurement connecting piece; the measurement connecting piece is used to drive the two synchronous winding pieces to rotate simultaneously; end limit pieces are respectively installed on the two synchronous winding pieces; the two end limit pieces are respectively used to be installed at both ends of the swivel bridge; measurement parts are respectively installed on the two end limit pieces, which can facilitate the staff to measure the rotation accuracy of the swivel bridge at the same time, can comprehensively measure the rotation accuracy of the bridge, and ensure the safety of bridge construction, so as to solve the problem that the current precision measurement device for the construction of a swivel bridge is not convenient to automatically measure the docking accuracy at both ends of the bridge following the rotation of the bridge, the manual measurement is cumbersome, and it is not convenient to automatically guide the steel bars.

Description

Technical Field

[0001] This application relates to the technical field of rotary bridge measurement, and particularly relates to a precision measurement device for the construction of a rotating bridge. Background Art

[0002] Bridge rotation is a special bridge erection technique. Its core lies in fabricating the bridge structure at a non-designed axis position and then achieving the precise positioning of the rotating bridge and the fixed-end bridges on both sides through rotation. This is convenient for prefabrication and does not affect traffic. Rotation construction usually involves horizontal rotation. In actual rotation construction work, total stations and other instruments are often used to measure the bridge during the rotation process in real time to ensure the rotation accuracy. Currently, the precision measurement device for the construction of a rotating bridge is not convenient for automatically measuring the docking accuracy consistency at both ends of the bridge following the bridge rotation. Manual measurement using tools such as rangefinders is cumbersome, requires frequent position adjustment, and has a large error. Manual measurement on the rotating bridge is also dangerous and not convenient for automatically measuring the bridge balance. At the same time, when the traditional bridge rotates, the steel bar heads at both ends need to be bent to avoid interference with the steel bar heads of the fixed-end bridges, which is not convenient for automatically guiding the steel bars. The bending of the steel bars is likely to interfere with the measurement and also easily cause potential hazards such as steel bar breakage. Summary of the Invention

[0003] An embodiment of the present disclosure relates to a precision measurement device for the construction of a rotating bridge. Its winding reel can facilitate the staff to measure the rotation accuracy of the rotating bridge simultaneously, comprehensively measure the rotation accuracy of the bridge, and ensure the safety of bridge construction, so as to solve the problems that the current precision measurement device for the construction of a rotating bridge is not convenient for automatically measuring the docking accuracy at both ends of the bridge following the bridge rotation, manual measurement is cumbersome, and it is not convenient for automatically guiding the steel bars.

[0004] The present application provides a precision measuring device for the construction of a rotating bridge, including a measuring connecting piece, on which two synchronous winding pieces are installed; the measuring connecting piece is used to simultaneously drive the two synchronous winding pieces to rotate; end limit pieces are respectively installed on the two synchronous winding pieces; the two end limit pieces are respectively used to be installed at the two ends of the rotating bridge; measuring parts are respectively installed on the two end limit pieces; the two measuring parts are used to measure the rotation accuracy of the bridge; the two measuring parts are respectively electrically connected to the measuring connecting piece; rotation fixing pieces are respectively installed on the two measuring parts, and the two rotation fixing pieces are respectively used to be installed on the fixed The middle part of the fixed-end bridge end; positioning members are respectively installed on the two rotating fixing members; steel bar guides are respectively installed on the two positioning members, and the two steel bar guides are used to guide the steel bar heads at both ends of the rotating bridge; the measuring connecting member includes: a control fixing plate, a middle guide block and a double-headed servo motor, and the control fixing plate is provided with four through slots; the four through slots on the control fixing plate are used to pass bolts to be installed in the middle of the rotating bridge; the middle guide blocks are respectively fixedly installed on both sides of the control fixing plate by bolts; the middle guide block is provided with a through slot; the double-headed servo motor is fixedly installed on the control fixing plate by a bracket.

[0005] In at least some embodiments, the rotating fixing member includes: a rotating fixing ring, a rotating shaft and a fixed seat, the rotating fixing ring is fixedly installed on the measuring sliding cylinder; a rotating shaft is rotatably installed on the bottom of the rotating fixing ring; a fixed seat is fixedly installed on the bottom of the rotating shaft, and a circle of through holes is provided on the fixed seat; the circle of through holes on the fixed seat is used to pass bolts to be installed in the middle of the fixed end bridge end.

[0006] In at least some embodiments, the measuring part also includes: a pulling spring, an electronic ruler and a fixed block, wherein a pulling spring is sleeved on the measuring sliding shaft; one end of the pulling spring is fixedly connected to the inner wall of the measuring sliding cylinder, and the other end of the pulling spring is fixedly mounted on the toggle block; an electronic ruler is fixedly mounted on the toggle block, and a fixed block is fixedly mounted on the end of the electronic ruler; the fixed block is fixedly mounted on the measuring sliding cylinder; and a display is externally connected to the electronic ruler.

[0007] In at least some embodiments, the end limit member includes: a limit connecting rope and a middle positioning block, one end of the limit connecting rope is fixedly installed on the other end of the winding steel sheet; the limit connecting rope is a steel wire rope structure; a middle positioning block is slidably sleeved on the limit connecting rope; two through holes are provided at the bottom of the middle positioning block; the two through holes at the bottom of the middle positioning block are used to insert bolts to be installed at the end of the rotating bridge, and the middle positioning block is centered; the middle positioning block is used to guide the limit connecting rope.

[0008] In at least some embodiments, the measuring part also includes: a measuring slide shaft, a motor switch and a measuring spring, wherein the measuring slide shaft is slidably installed in the measuring sliding cylinder, and the motor switch is fixedly installed on the measuring slide shaft, and the motor switch is aligned with the toggle block; a measuring spring is sleeved on the measuring slide shaft; the end of the measuring spring is fixedly installed on the end of the measuring slide shaft; the measuring spring is located inside the measuring sliding cylinder; the two motor switches are respectively electrically connected to a double-head servo motor, and the double-head servo motor is used to control the rotation of two winding reels.

[0009] In at least some embodiments, the measuring connection also includes: a driving worm and a rotating shaft frame, the two output shafts of the double-headed servo motor are respectively fixedly mounted with a driving worm, and the two driving worms are arranged in opposite directions; two rotating shaft frames are fixedly mounted on the control fixed plate by bolts, and the two driving worms are respectively mounted on the two rotating shaft frames.

[0010] In at least some embodiments, the measuring part includes: a measuring sliding cylinder, a measuring sliding shaft and a toggle block, wherein the measuring sliding shaft is slidably installed in the measuring sliding cylinder, and one end of the measuring sliding shaft is fixedly installed with the other end of a limiting connecting rope; a through groove is provided at the top of the measuring sliding cylinder; a toggle block is fixedly installed at the other end of the measuring sliding shaft, and the toggle block is slidably installed in the measuring sliding cylinder, and the toggle block passes through the through groove provided at the top of the measuring sliding cylinder.

[0011] In at least some embodiments, the positioning member includes: a positioning rod, a limit plate and connecting steel bars, the positioning rod is fixedly installed on the side of the fixing seat; the limit plates are fixedly installed on both sides of the positioning rod; the two limit plates are respectively used to fit the two sides of the fixed end bridge end; the fixing seat is located in the middle of the positioning rod; and two connecting steel bars are fixedly installed at the bottom of the positioning rod.

[0012] In at least some embodiments, the synchronous winding component includes: a winding disk, a worm gear and a winding steel sheet, two winding disks are rotatably installed on the control fixed disk; a worm gear is fixedly installed on the winding disk; the worm gear is engaged with a driving worm; the driving worm is used to drive the winding disk to rotate; one end of the winding steel sheet is fixedly installed on the winding disk, and the winding steel sheet passes through the through slot on the middle guide block; the winding steel sheet can be wound and wound on the winding disk.

[0013] In at least some embodiments, the steel bar guide comprises: guide plates and guide inclined panels, a row of guide plates being fixedly mounted on the two connecting steel bars, and the lengths of the guide plates in a row are different; a row of guide plates are respectively located above the steel bar heads at the ends of the fixed end bridge; guide inclined panels are respectively fixedly mounted on both sides of a row of guide plates, and the two guide inclined panels are inclined structures; the guide inclined panels are used to guide the steel bar heads at the ends of the rotating bridge.

[0014] The present application provides a precision measurement device for the construction of a swivel bridge, which has the following beneficial effects:

[0015] In the present application, the synchronous winding member can cooperate with the measurement connecting member to realize the simultaneous winding of two winding steel sheets. Through the end limiting member, the distances from the two ends of the swivel bridge to the fixed-end bridge can be controlled simultaneously when measuring the swivel of the bridge. During the swivel process of the bridge, the limiting connection rope can be automatically tightened, avoiding the relaxation of the limiting connection rope from affecting the measurement accuracy, and the same displacement amount can be controlled for the tightening of the two limiting connection ropes simultaneously to ensure the sustainability of the measurement.

[0016] In addition, two measurement parts are respectively installed in the middle of the fixed-end bridge, which can measure the consistency of the distance between the swivel bridge and the fixed-end bridge in real time, avoiding the situation that the swivel bridge is skewed during the swivel process without being detected. The staff does not need to stand on the swivel bridge to operate instruments such as rangefinders. The measurement is more direct and safer. Through the positioning of the measurement part in cooperation with the middle positioning block, even if the two ends of the swivel bridge are skewed due to factors such as uneven weight, the consistency detection can be realized, and the skewness detection accuracy can be guaranteed.

[0017] In addition, the adopted steel bar guiding member can guide the steel bar heads at both ends of the swivel bridge, eliminating the need to bend the steel bar heads at both ends of the swivel bridge before measurement, improving work efficiency, avoiding potential safety hazards caused by manual bending of steel bars at the bridge ends, ensuring the strength quality of the steel bar heads at both ends of the swivel bridge, and preventing the steel bar heads from blocking the limiting connection rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings of the embodiments will be briefly introduced below.

[0019] The accompanying drawings in the following description only relate to some embodiments of the present application and do not limit the present application.

[0020] In the drawings:

[0021] Figure 1 A schematic diagram showing a precision measurement device for the construction of a swivel bridge according to the present application installed on a bridge is shown;

[0022] Figure 2 A schematic diagram showing the overall structure of a precision measurement device for the construction of a swivel bridge according to the present application is shown;

[0023] Figure 3 A cross-sectional view showing the internal structure of a precision measurement device for the construction of a swivel bridge according to the present application is shown;

[0024] Figure 4 A schematic diagram showing the overall structure of the synchronous winding member according to the present application is shown;

[0025] Figure 5 Shows a schematic diagram of the overall structure of the measurement connection part of the present application;

[0026] Figure 6 Shows the Figure 1 Enlarged view of the structure of area B in

[0027] Figure 7 Shows a schematic diagram of the structure of the rotary fixing part of the present application;

[0028] Figure 8 Shows the Figure 3 Enlarged view of the structure of area D in

[0029] Figure 9 Shows the Figure 3 Enlarged view of the structure of area E in

[0030] Figure 10 Shows a schematic diagram of the internal structure of the measurement sliding cylinder of the present application;

[0031] Figure 11 Shows a schematic diagram of the overall structure of the positioning part of the present application;

[0032] Figure 12 Shows a schematic diagram of the overall structure of the steel bar guiding part of the present application.

[0033] List of reference numerals:

[0034] 1. Measurement connection part; 101. Control fixed disk; 102. Middle guiding block; 103. Double-headed servo motor; 104. Driving worm; 105. Rotating shaft bracket; 2. Synchronous winding part; 201. Winding disk; 202. Worm gear; 203. Winding steel sheet; 3. End limiting part; 301. Limiting connection rope; 302. Middle positioning block; 4. Measurement part; 401. Measurement sliding cylinder; 402. Measurement sliding shaft; 403. Poking block; 404. Pulling spring; 405. Electronic ruler; 406. Fixed block; 407. Measurement sliding shaft; 408. Motor switch; 409. Measurement spring; 5. Rotary fixing part; 501. Rotary fixing ring; 502. Rotary shaft; 503. Fixed seat; 6. Positioning part; 601. Positioning rod; 6011. Limiting plate; 602. Connecting steel bar; 7. Steel bar guiding part; 701. Guiding sheet; 7011. Guiding inclined panel. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0036] Embodiment 1: Please refer to Figures 1 to 12 :

[0037] This application provides a precision measurement device for the construction of a swivel bridge, which includes a measurement connecting member 1, and two synchronous winding members 2 are installed on the measurement connecting member 1; the measurement connecting member 1 is used to drive the two synchronous winding members 2 to rotate simultaneously; two end limiting members 3 are respectively installed on the two synchronous winding members 2; the two end limiting members 3 are respectively used to be installed at both ends of the swivel bridge; two measurement parts 4 are respectively installed on the two end limiting members 3; the two measurement parts 4 are used to measure the rotation precision of the bridge; the two measurement parts 4 are respectively electrically connected to the measurement connecting member 1; two rotation fixing members 5 are respectively installed on the two measurement parts 4, and the two rotation fixing members 5 are respectively used to be installed at the middle parts of the ends of the fixed-end bridge; two positioning members 6 are respectively installed on the two rotation fixing members 5; two steel bar guiding members 7 are respectively installed on the two positioning members 6, and the two steel bar guiding members 7 are used to guide the steel bar heads at both ends of the swivel bridge; the measurement connecting member 1 includes: a control fixing plate 101, a middle guiding block 102, and a double-headed servo motor 103. Four through slots are opened on the control fixing plate 101; the four through slots on the control fixing plate 101 are used to pass through bolts and install in the middle of the swivel bridge; the middle guiding block 102 is fixedly installed on both sides of the control fixing plate 101 through bolts; a through slot is provided on the middle guiding block 102; the double-headed servo motor 103 is fixedly installed on the control fixing plate 101 through a bracket.

[0038] In the embodiment of the present application, the measurement connecting member 1 further includes: a driving worm 104 and a rotating shaft bracket 105. Driving worms 104 are respectively and fixedly installed on the two output shafts of the double-headed servo motor 103, and the two driving worms 104 are arranged in opposite directions; two rotating shaft brackets 105 are fixedly installed on the control fixed disk 101 through bolts, and the two driving worms 104 are respectively installed on the two rotating shaft brackets 105; the synchronous winding member 2 includes: a winding disk 201, a worm gear 202, and a winding steel sheet 203. Two winding disks 201 are rotatably installed on the control fixed disk 101; a worm gear 202 is fixedly installed on the winding disk 201; the worm gear 202 meshes with the driving worm 104; the driving worm 104 is used to drive the winding disk 201 to rotate; one end of the winding steel sheet 203 is fixedly installed on the winding disk 201, and the winding steel sheet 203 passes through the through groove on the middle guiding block 102; the winding steel sheet 203 can be wound around the winding disk 201; the end limiting member 3 includes: a limiting connecting rope 301 and a middle positioning block 302. One end of the limiting connecting rope 301 is fixedly installed on the other end of the winding steel sheet 203; the limiting connecting rope 301 is of a steel wire rope structure; a middle positioning block 302 is slidably sleeved on the limiting connecting rope 301, and the length of the limiting connecting rope 301 is set according to the bridge parameters; two through holes are provided at the bottom of the middle positioning block 302; the two through holes at the bottom of the middle positioning block 302 are used for inserting bolts to be installed at the end of the rotating bridge, and the middle positioning block 302 is centered; the middle positioning block 302 is used to guide the limiting connecting rope 301. The adopted synchronous winding member 2 can cooperate with the measurement connecting member 1 to realize the simultaneous winding of the two winding steel sheets 203, which can facilitate the simultaneous control of the distances between the two ends of the rotating bridge and the fixed-end bridge when measuring the rotation of the bridge through the end limiting member 3, ensure the measurement accuracy. This structure measures in the way of simultaneously measuring the two ends of the rotating bridge, and the measurement is more efficient. The end limiting member 3 can be used for limiting measurement at the middle parts of the two ends of the rotating bridge. By using the characteristic that the wet joint spacing between the rotating bridge and the fixed-end bridges at both ends needs to be the same after the rotating bridge rotates in place, that is, when the rotating bridge rotates to any position, the distances between its two ends and the fixed-end bridges should be consistent, otherwise it means that there may be deviation hidden dangers in the bridge. This structure has direct and efficient measurement. During the rotation process of the bridge, the limiting connecting rope 301 can be automatically tightened to avoid the relaxation of the limiting connecting rope 301 affecting the measurement accuracy. The tightening displacements of the two limiting connecting ropes 301 can be controlled simultaneously to ensure the sustainability of the measurement. By driving the two driving worms 104 to rotate through the double-headed servo motor 103, the worm gear 202 can be driven, and the winding disk 201 can be driven to rotate, so as to realize the winding of the set winding steel sheet 203, tighten the limiting connecting rope 301, ensure the measurement accuracy, and avoid the relaxation of the limiting connecting rope 301.

[0039] In the embodiment of the present application, the measuring part 4 includes: a measuring sliding cylinder 401, a measuring sliding shaft 402 and a toggle block 403. The measuring sliding cylinder 401 is slidably installed with the measuring sliding shaft 402, and one end of the measuring sliding shaft 402 is fixedly installed with the other end of the limited connection rope 301; a through groove is provided at the top of the measuring sliding cylinder 401; a toggle block 403 is fixedly installed at the other end of the measuring sliding shaft 402, and the toggle block 403 is slidably installed in the measuring sliding cylinder 401, and the toggle block 403 passes through the through groove provided at the top of the measuring sliding cylinder 401; the measuring part 4 also includes: a pulling spring 404, an electronic ruler 405 and a fixed block 406, a pulling spring 404 is sleeved on the measuring sliding shaft 402; one end of the pulling spring 404 is fixedly connected to the inner wall of the measuring sliding cylinder 401, and the other end of the pulling spring 404 is fixedly installed Installed on the toggle block 403; an electronic ruler 405 is fixedly installed on the toggle block 403, and a fixed block 406 is fixedly installed at the end of the electronic ruler 405, and an SDMSS type electronic ruler 405 can be used, and a matching display is used; the fixed block 406 is fixedly installed on the measuring sliding cylinder 401; the electronic ruler 405 is externally connected to a display; the measuring part 4 also includes: a measuring sliding shaft 407, a motor switch 408 and a measuring spring 409, a measuring sliding shaft 407 is slidably installed in the measuring sliding cylinder 401, and a motor switch 408 is fixedly installed on the measuring sliding shaft 407, and the motor switch 408 is aligned with the toggle block 403; a measuring spring 409 is sleeved on the measuring sliding shaft 407; the end of the measuring spring 409 is fixedly installed at the end of the measuring sliding shaft 407; the measuring spring 409 is located inside the measuring sliding cylinder 401;The two motor switches 408 are electrically connected to the double-headed servo motor 103 respectively, and the double-headed servo motor 103 is used to control the rotation of the two winding reels 201. Two measuring parts 4 are used, which are respectively installed in the middle of the fixed end bridge. The consistency of the spacing between the rotating bridge and the fixed end bridge can be measured in real time. The staff does not need to stand on the rotating bridge to operate instruments such as distance meters. The measurement is more direct and safer. Through the positioning of the measuring part 4 in conjunction with the middle positioning block 302, even if the two ends of the rotating bridge are skewed due to factors such as overweight, consistency detection can be achieved, which can ensure the accuracy of skew detection. The motor switch 4 used 08, can be used to automatically control the double-head servo motor 103 to drive the winding disk 201 to rotate, without manual detection, the test automation effect is better, the staff is more worry-free, only need to pay attention to the two electronic rulers 405 display data, when the bridge rotates, as the bridge rotates, if the rotating bridge is skewed or offset due to factors such as different weights, at this time, the control fixed disk 101 is no longer centered relative to the fixed end bridge, it will deviate to one side, which will pull the limit connecting rope 301 and pull the measuring sliding shaft 402 on the opposite side of the offset direction. At this time, the measuring sliding shaft 402 will pull the toggle block 403 to squeeze The electronic ruler 405, at this time, the display readings of the two electronic rulers 405 are no longer the same, so as to measure and judge whether the relative position of the rotating bridge has changed. As the bridge rotates, the distance between the two ends of the rotating bridge and the fixed end bridge gradually decreases. By utilizing the elastic compression of the pulling spring 404, the measuring sliding shaft 402 is elastically pushed to tighten the limit connecting rope 301. With the elastic compression of the pulling spring 404, the measuring sliding shaft 402 can drive the toggle block 403 to squeeze the motor switch 408. After the motor switch 408 on either side is squeezed, the double-head servo motor 103 will be energized, and the double-head The servo motor 103 will control the two winding discs 201 to rotate, so as to simultaneously wind up the same length of the winding steel sheet 203, ensuring that the structure can measure the bridge rotation accuracy in real time. By using the measuring spring 409 on the measuring slide shaft 407, the motor switch 408 installed can compress the measuring spring 409 after being squeezed by the toggle block 403, without affecting the elastic propulsion of the pulling spring 404 to tighten the limit connecting rope 301, ensuring the normal working detection of the two electronic rulers 405. The structure measures directly and is easy to operate. It can accurately measure whether the rotating bridge is centered, and can also measure in real time during the rotation process. ;

[0040] In the embodiment of the present application, the rotary fixing member 5 includes: a rotary fixing ring 501, a rotary shaft 502, and a fixing base 503. The rotary fixing ring 501 is fixedly installed on the measuring sliding cylinder 401; the rotary shaft 502 is rotatably installed at the bottom of the rotary fixing ring 501; the fixing base 503 is fixedly installed at the bottom of the rotary shaft 502, and a circle of through holes is provided on the fixing base 503; the circle of through holes on the fixing base 503 is used to pass through bolts and install them in the middle of the end of the fixed-end bridge. When the bridge rotates, the rotary shaft 502 and the fixing base 503 are used to perform real-time rotation adaptation, ensuring that the angle of the limit connection rope 301 is adapted to the fixed-end bridge when the bridge rotates, and ensuring the measurement accuracy.

[0041] Embodiment 2, on the basis of Embodiment 1, the positioning member 6 includes: a positioning rod 601, a limiting plate 6011 and a connecting steel bar 602. The positioning rod 601 is fixedly installed on the side of the fixed seat 503; limiting plates 6011 are fixedly installed on both sides of the positioning rod 601 respectively; the two limiting plates 6011 are respectively used to fit both sides of the end of the fixed-end bridge; the fixed seat 503 is located in the middle of the positioning rod 601; two connecting steel bars 602 are fixedly installed at the bottom of the positioning rod 601; the steel bar guiding member 7 includes: a guiding piece 701 and a guiding inclined panel 7011. A row of guiding pieces 701 are fixedly installed on the two connecting steel bars 602, and the lengths of the row of guiding pieces 701 are different; the row of guiding pieces 701 are respectively located above the steel bar heads at the end of the fixed-end bridge; guiding inclined panels 7011 are fixedly installed on both sides of the row of guiding pieces 701 respectively, and the two guiding inclined panels 7011 are of inclined surface structures; the guiding inclined panels 7011 are used to guide the steel bar heads at the end of the rotating bridge. The adopted steel bar guiding member 7 can guide the steel bar heads at both ends of the rotating bridge, eliminating the need to bend the steel bar heads at both ends of the rotating bridge before measurement, improving work efficiency, avoiding potential safety hazards caused by manually bending the steel bars at the bridge end, and ensuring the strength quality of the steel bar heads at both ends of the rotating bridge. During the rotation of the bridge, a reserved gap needs to be left between the rotating bridge and the fixed-end bridge because the bridge has its own width, otherwise collisions will occur during the rotation of the bridge. However, the connecting steel bars of the bridge need to be reserved as long as possible to provide a longer welding area for subsequent steel bar welding. In the traditional method, workers need to stand at the bridge end and bend the steel bars upward to prevent collisions. However, bending the steel bars back will affect their strength and block the use of devices such as total stations and measuring rulers. This structure does not require bending the steel bars, thus not affecting the straight-line measurement of the limiting connection rope 301 due to the bent steel bars and improving the safety of bridge construction. When the fixed seat 503 is installed on the top of the fixed-end bridge, a row of guiding pieces 701 are placed between the steel bars of the bridge respectively for guiding. During the subsequent rotation of the bridge, the steel bar heads of the rotating bridge will first fit the guiding inclined panel 7011, and through the elastic guiding of the guiding inclined panel 7011, the steel bar heads can be guided to slide over the steel bars of the fixed-end bridge. Subsequently, the steel bars can naturally slide down from the guiding pieces 701 by their own elasticity.

[0042] The working principle of this embodiment: First, the four through slots on the control fixing plate 101 are installed in the middle of the rotating bridge through bolts for positioning, and the middle positioning block 302 is installed in the center of the rotating bridge end with bolts. A circle of through holes on the fixing seat 503 is used to pass bolts and install in the middle of the fixed end bridge end and close to the edge. The two limit plates 6011 can fit on both sides of the fixed end bridge to play a limiting role, and cooperate to place a row of guide plates 701 between the steel bars of the bridge to perform positioning and installation work before rotation. When the initial control fixing plate 101 and the fixing seat 503 are installed on the rotating bridge and the fixed end bridge, the pulling spring 404 is in a compressed state to ensure the initial position accuracy. Subsequently, real-time measurement can be performed as the bridge rotates. As the bridge rotates, the distance between the two ends of the rotating bridge and the fixed end bridge gradually decreases. The elastic squeezing of the pulling spring 404 and the elastic pushing of the measuring sliding shaft 402 can realize the tightening of the limit connecting rope 301. As the pulling spring 404 is elastically squeezed, the measuring sliding shaft 402 can drive the toggle block 403 to squeeze the motor switch 408. After the motor switch 408 on either side is squeezed, the double-headed servo motor 103 will be energized, and the two driving worms 104 can be driven to rotate by the double-headed servo motor 103, so as to drive the worm wheel 202 and drive the winding disk 201 to rotate, so as to realize the winding of the winding steel sheet 203, and realize the simultaneous winding of the winding steel sheets 203 of the same length, so as to ensure that the present structure can perform real-time bridge rotation accuracy measurement. By utilizing the measuring spring 409 on the measuring sliding shaft 407, the installed motor switch 408 can compress the measuring spring 409 after being squeezed by the toggle block 403, without affecting the elastic propulsion of the pulling spring 404 to tighten the limit connecting rope 301, thereby ensuring the normal operation and detection of the two electronic rulers 405. The structure measures directly and accurately measures whether the rotating bridge is centered. As the bridge rotates, if the rotating bridge is skewed or offset due to factors such as different weights on both sides, the control fixed plate 101 and the middle positioning block 302 are no longer centered relative to the fixed end bridge, and will offset, which will pull the limit connecting rope 301 and pull the measuring sliding shaft 402 on the opposite side of the offset direction. At this time, the measuring sliding shaft 402 will pull the toggle block 403. , squeeze the electronic ruler 405, at this time the display readings of the two electronic rulers 405 are no longer the same, so as to measure and judge whether the relative position of the rotating bridge has changed. At the same time, real-time measurement can be performed during the rotation process. The rotating shaft 502 is used in conjunction with the fixed seat 503, so that real-time rotation adaptation can be performed to ensure that the limit connecting rope 301 is adapted to the angle of the fixed end bridge when the bridge rotates. As the subsequent bridge rotates close to the fixed end bridge, the steel bar head of the rotating bridge will first fit the guiding inclined plate 7011. After the elastic guidance of the guiding inclined plate 7011, the steel bar head can be guided to slide over the steel bar of the fixed end bridge. Subsequently, the elasticity of the steel bar itself can be used to naturally slide down from the guide plate 701. The steel bar head can be simply corrected during subsequent welding.When the rotating bridge approaches the fixed-end bridge during rotation, it is only necessary to cooperate with tools such as measuring rulers for more accurate measurement of the seam in place. Subsequently, after the bridge rotation is completed, since the steel bars will only overlap and collide when approaching, after the bridge docking is completed, there is a spacing between the steel bars of the fixed-end bridge and the steel bars of the rotating bridge. After removing the fixed seat 503, the guiding piece 701 can be taken out from the space between the steel bars of the fixed-end bridge and the steel bars of the rotating bridge to carry out the subsequent welding work, and then the subsequent closure construction can be carried out.,

[0043] In this article, the following points need to be noted:

[0044] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0045] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0046] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A precision measuring device for construction of a rotating bridge, comprising a measuring connecting member (1), on which two synchronous winding members (2) are mounted; characterized in that: The measuring connection member (1) is used to simultaneously drive two synchronous winding members (2) to rotate; the two synchronous winding members (2) are respectively installed with end stop members (3); the two end stop members (3) are respectively installed at two ends of the rotating bridge; The two end stoppers (3) are respectively provided with measuring parts (4); the two measuring parts (4) are used to measure the rotation accuracy of the bridge; the two measuring parts (4) are respectively electrically connected to the measuring connectors (1); A swivel fixing member (5) is respectively installed on the two measuring parts (4), and the two swivel fixing members (5) are respectively used to be installed in the middle of the end of the fixed end bridge; Positioning members (6) are respectively installed on the two rotating fixing members (5); steel bar guide members (7) are respectively installed on the two positioning members (6), and the two steel bar guide members (7) are used to guide the steel bar heads at both ends of the rotating bridge; The measuring connecting member (1) comprises: a control fixing plate (101), a middle guide block (102) and a double-headed servo motor (103); the control fixing plate (101) is provided with four through slots; the four through slots on the control fixing plate (101) are used to pass bolts to be installed in the middle of the rotating bridge; the middle guide blocks (102) are fixedly installed on both sides of the control fixing plate (101) by bolts; the middle guide block (102) is provided with a through slot; the double-headed servo motor (103) is fixedly installed on the control fixing plate (101) by a bracket; The end stopper (3) comprises: a stopper connecting rope (301) and a middle positioning block (302); the stopper connecting rope (301) is slidably sleeved with the middle positioning block (302); two through holes are provided at the bottom of the middle positioning block (302); the two through holes at the bottom of the middle positioning block (302) are used to insert bolts to be installed at the end of the rotating bridge, and the middle positioning block (302) is centered; The measuring part (4) comprises: a measuring sliding cylinder (401), a measuring sliding shaft (402), a toggle block (403), a pulling spring (404), an electronic ruler (405), a fixed block (406), a measuring sliding shaft (407), a motor switch (408) and a measuring spring (409); the measuring sliding cylinder (401) has a measuring sliding shaft (402) slidably mounted therein, and one end of the measuring sliding shaft (402) is fixedly mounted with the other end of a limit connecting rope (301); a through groove is provided at the top of the measuring sliding cylinder (401); a toggle block (403) is fixedly mounted at the other end of the measuring sliding shaft (402), and the toggle block (403) is slidably mounted in the measuring sliding cylinder (401), and the toggle block (403) passes through the measuring sliding cylinder (401). A through slot is provided on the top; a pulling spring (404) is sleeved on the measuring sliding shaft (402); one end of the pulling spring (404) is fixedly connected to the inner wall of the measuring sliding cylinder (401), and the other end of the pulling spring (404) is fixedly mounted on the toggle block (403); an electronic ruler (405) is fixedly mounted on the toggle block (403), and a fixed block (406) is fixedly mounted on the end of the electronic ruler (405); the fixed block (406) is fixedly mounted on the measuring sliding cylinder (401); the electronic ruler (405) is externally connected to a display; a measuring sliding shaft (407) is slidably mounted in the measuring sliding cylinder (401), and a motor switch (408) is fixedly mounted on the measuring sliding shaft (407), and the motor switch (408) is aligned with the toggle block (403).

2. The precision measuring device for rotating bridge construction according to claim 1 is characterized in that: The measuring connecting member (1) further comprises: a driving worm (104) and a rotating shaft frame (105); the driving worms (104) are respectively fixedly mounted on the two output shafts of the double-headed servo motor (103), and the two driving worms (104) are arranged in opposite directions; the two rotating shaft frames (105) are fixedly mounted on the control fixed disk (101) by means of bolts, and the two driving worms (104) are respectively mounted on the two rotating shaft frames (105).

3. The precision measuring device for rotating bridge construction according to claim 2 is characterized in that: The synchronous winding member (2) comprises: a winding disk (201), a worm wheel (202) and a winding steel sheet (203); the two winding disks (201) are rotatably mounted on the control fixed disk (101); the worm wheel (202) is fixedly mounted on the winding disk (201); the worm wheel (202) is meshed with a driving worm (104); the driving worm (104) is used to drive the winding disk (201) to rotate; one end of the winding steel sheet (203) is fixedly mounted on the winding disk (201), and the winding steel sheet (203) passes through a through slot on the middle guide block (102); the winding steel sheet (203) can be wound and wound on the winding disk (201).

4. The precision measuring device for rotating bridge construction according to claim 3 is characterized in that: One end of the position-limiting connecting rope (301) is fixedly mounted on the other end of the winding steel sheet (203); the position-limiting connecting rope (301) is a steel wire rope structure; and the middle positioning block (302) is used to guide the position-limiting connecting rope (301).

5. The precision measuring device for rotating bridge construction according to claim 3 is characterized in that: A measuring spring (409) is sleeved on the measuring slide shaft (407); an end of the measuring spring (409) is fixedly mounted on the end of the measuring slide shaft (407); the measuring spring (409) is located inside the measuring slide cylinder (401); the two motor switches (408) are respectively electrically connected to the double-headed servo motor (103), and the double-headed servo motor (103) is used to control the rotation of the two winding reels (201).

6. The precision measuring device for rotating bridge construction according to claim 1 is characterized in that: The rotary fixing member (5) comprises: a rotary fixing ring (501), a rotary shaft (502) and a fixing seat (503); the rotary fixing ring (501) is fixedly mounted on the measuring sliding cylinder (401); a rotary shaft (502) is rotatably mounted on the bottom of the rotary fixing ring (501); a fixing seat (503) is fixedly mounted on the bottom of the rotary shaft (502), and a circle of through holes is provided on the fixing seat (503); the circle of through holes on the fixing seat (503) is used to pass bolts to be installed in the middle of the end of the fixed end bridge.

7. The precision measuring device for rotating bridge construction according to claim 6 is characterized in that: The positioning member (6) comprises: a positioning rod (601), a limiting plate (6011) and a connecting steel bar (602); the positioning rod (601) is fixedly mounted on the side of the fixing seat (503); the limiting plates (6011) are fixedly mounted on both sides of the positioning rod (601); the two limiting plates (6011) are respectively used to fit the two sides of the bridge end of the fixing end; the fixing seat (503) is located in the middle of the positioning rod (601); and two connecting steel bars (602) are fixedly mounted on the bottom of the positioning rod (601).

8. The precision measuring device for rotating bridge construction according to claim 7 is characterized in that: The steel bar guide (7) comprises: a guide piece (701) and a guide inclined panel (7011); a row of guide pieces (701) are fixedly mounted on the two connecting steel bars (602); the lengths of the guide pieces (701) in the row are different; the guide pieces (701) in the row are respectively located above the steel bar heads at the ends of the fixed end bridge; guide inclined panels (7011) are fixedly mounted on both sides of the guide pieces (701) in the row, and the two guide inclined panels (7011) are inclined surface structures; the guide inclined panels (7011) are used to guide the steel bar heads at the ends of the revolving bridge.

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