Precision measuring device for swivel bridge construction

Abstract

The invention provides a precision measurement device for swivel bridge construction, and relates to the technical field of swivel bridge measurement, the precision measurement device comprises a measurement connecting piece, and the measurement connecting piece is provided with two synchronous winding pieces; the measurement connecting piece is used for driving the two synchronous winding pieces to rotate at the same time. The two synchronous winding pieces are each provided with an end limiting piece. The two end limiting pieces are used for being installed at the two ends of a swivel bridge correspondingly. The two end limiting pieces are respectively provided with a measuring part, so that a worker can conveniently measure the rotation precision of a rotation bridge at the same time, the rotation precision of the bridge can be comprehensively measured, and the construction safety of the bridge is ensured; the problems that an existing precision measuring device for swivel bridge construction cannot conveniently follow a bridge to automatically measure the butt joint precision of the two ends of the bridge, manual measurement is tedious, and steel bars cannot be conveniently and automatically guided are solved.

Description

Technical Field

[0001] The present application relates to the technical field of rotary bridge measurement, and in particular to a precision measurement device for rotary bridge construction. Background Art

[0002] Bridge rotation is a special bridge-building process. Its core lies in forming the bridge structure at a non-design axis position, and then accurately positioning the rotating bridge and the fixed-end bridges on both sides through rotation, which is convenient for prefabrication and does not affect traffic. Rotation construction is usually horizontal rotation. In actual rotation construction work, it is often necessary to use total stations and other instruments to measure the bridge in real time during the rotation process to ensure the rotation accuracy. The current precision measurement device for rotating bridge construction is not convenient to automatically measure the docking accuracy consistency of the two ends of the bridge following the bridge rotation. Manual measurement using tools such as rangefinders is cumbersome and requires frequent position adjustment. At the same time, the error is large. Manual measurement on a rotating bridge is very dangerous and is not convenient for automatic bridge balance measurement. At the same time, when a traditional bridge is rotated, the steel bars at both ends need to be bent to avoid interference with the steel bars of the fixed-end bridge, which is not convenient for automatic guidance of the steel bars. The bending of the steel bars can easily interfere with the measurement and also easily cause hidden dangers such as steel bar breakage. Summary of the invention

[0003] The disclosed embodiment relates to a precision measuring device for the construction of a rotating bridge. The winding reel of the device can facilitate workers to measure the rotation accuracy of the rotating bridge at the same time, and can comprehensively measure the rotation accuracy of the bridge to ensure the safety of bridge construction, so as to solve the problems that the current precision measuring device for the construction of a rotating bridge is not convenient for automatically measuring the docking accuracy of the two ends of the bridge following the rotation of the bridge, the 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 rotating bridge, which has the following beneficial effects: The synchronous winding member used in the present application can cooperate with the measuring connecting member to realize the simultaneous winding of two winding steel sheets. Through the end limit members, the distance between the two ends of the rotating bridge and the fixed end bridge can be controlled at the same time when measuring the bridge rotation. During the rotation of the bridge, the limit connecting rope can be automatically tightened to prevent the limit connecting rope from loosening and affecting the measurement accuracy. The two limit connecting ropes can be controlled to tighten the same displacement at the same time to ensure the sustainability of the measurement.

[0015] In addition, two measuring units are used, which are installed in the middle of the fixed-end bridge respectively. The consistency of the distance between the rotating bridge and the fixed-end bridge can be measured in real time to avoid the undetected skewness of the bridge during rotation. The staff does not need to stand on the rotating bridge to operate instruments such as rangefinders. The measurement is more direct and safer. Through the positioning of the measuring unit in conjunction with the middle positioning block, even if the two ends of the rotating bridge are skewed due to factors such as weight imbalance, consistency detection can be achieved to ensure the accuracy of skew detection.

[0016] In addition, the steel bar guides used can guide the steel bar heads at both ends of the rotating bridge. There is no need to bend the steel bar heads at both ends of the rotating bridge before measuring, which improves work efficiency and avoids the safety hazards caused by manual bending of steel bars at the ends of the bridge. It also ensures the strength and quality of the steel bar heads at both ends of the rotating bridge, and the limit connecting rope will not be blocked by the steel bar heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings of the embodiments are briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present application and are not intended to limit the present application.

[0019] In the attached picture: Figure 1 A schematic diagram showing a precision measurement device for construction of a rotating bridge of the present application installed behind the bridge; Figure 2 The overall structure diagram of a precision measurement device for rotating bridge construction of the present application is shown; Figure 3 A cross-sectional view showing the internal structure of a precision measuring device for construction of a rotating bridge of the present application; Figure 4 A schematic diagram showing the overall structure of the synchronous winding member of the present application is shown; Figure 5 A schematic diagram showing the overall structure of the measuring connector of the present application is shown; Figure 6 This application shows Figure 1A magnified view of the structure of the middle B region; Figure 7 A schematic diagram showing the structure of the rotary fixing member of the present application is shown; Figure 8 This application shows Figure 3 A magnified view of the structure of the middle D region; Fig. 9 This application shows Figure 3 A magnified view of the structure of the middle E region; Fig.10 A schematic diagram showing the internal structure of the measuring slide cylinder of the present application is shown; Fig.11 A schematic diagram showing the overall structure of the positioning member of the present application; Fig.12 A schematic diagram showing the overall structure of the steel bar guide of the present application.

[0020] List of reference numerals: 1. Measuring connecting piece; 101. Control fixed plate; 102. Middle guide block; 103. Double-head servo motor; 104. Driving worm; 105. Rotating shaft frame; 2. Synchronous winding piece; 201. Winding plate; 202. Worm gear; 203. Winding steel sheet; 3. End stopper; 301. Stopper connecting rope; 302. Middle positioning block; 4. Measuring part; 401. Measuring sliding cylinder; 402. Measuring sliding shaft; 403. Dial Moving block; 404, pulling spring; 405, electronic ruler; 406, fixed block; 407, measuring slide shaft; 408, motor switch; 409, measuring spring; 5, rotating fixed part; 501, rotating fixed ring; 502, rotating shaft; 503, fixing seat; 6, positioning part; 601, positioning rod; 6011, limiting plate; 602, connecting steel bar; 7, steel bar guide; 701, guide plate; 7011, guiding inclined plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0022] Example 1: Please refer to Figures 1 to 12 : The present application proposes a precision measuring device for the construction of a rotating bridge, comprising a measuring connecting member 1, on which two synchronous winding members 2 are installed; the measuring connecting member 1 is used to simultaneously drive the two synchronous winding members 2 to rotate; the two synchronous winding members 2 are respectively installed with end limit members 3; the two end limit members 3 are respectively used to be installed at the two ends of the rotating bridge; the two end limit members 3 are respectively installed 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 connecting member 1; the two measuring parts 4 are respectively installed with rotation fixing members 5, and the two rotation fixing members 5 are respectively used to be installed in the middle of the ends 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 includes: a control fixing disk 101, a middle guide block 102 and a double-headed servo motor 103, and four through slots are opened on the control fixing disk 101; the four through slots on the control fixing disk 101 are used to pass bolts to be installed in the middle of the rotating bridge; the middle guide blocks 102 are respectively fixedly installed on both sides of the control fixing disk 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 disk 101 by a bracket.

[0023] In the embodiment of the present application, the measuring connecting member 1 also includes: a driving worm 104 and a rotating shaft frame 105, the driving worms 104 are fixedly installed on the two output shafts of the double-head servo motor 103, and the two driving worms 104 are arranged in opposite directions; two rotating shaft frames 105 are fixedly installed on the control fixed disk 101 by bolts, and the two driving worms 104 are respectively installed on the two rotating shaft frames 105; the synchronous winding member 2 includes: a winding disk 201, a worm wheel 202 and a winding steel sheet 203, two winding disks 201 are rotatably installed on the control fixed disk 101; a worm wheel 202 is fixedly installed on the winding disk 201; the worm wheel 202 is meshed with the driving worm 104; the driving worm 104 is used to drive the winding drum 201 to rotate; one end of the winding steel sheet 203 is fixedly installed on the winding drum 201, and the winding steel sheet 203 passes through the through slot on the middle guide block 102; the winding steel sheet 203 can be wound and wound on the winding drum 201; the end limiter 3 includes: a limit connecting rope 301 and a middle positioning block 302, one end of the limit connecting rope 301 is fixedly installed on the other end of the winding steel sheet 203; the limit connecting rope 301 is a steel wire rope structure; the middle positioning block 302 is slidably sleeved on the limit connecting rope 301, and the length of the limit 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 The hole is used to insert the bolt 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 limit connecting rope 301, and the synchronous winding member 2 used can cooperate with the measuring connecting member 1 to realize the simultaneous winding of the two winding steel sheets 203, which can facilitate the simultaneous control of the distance between the two ends of the rotating bridge and the fixed end bridge when measuring the bridge rotation through the end limiting member 3, and can ensure the measurement accuracy. This structure adopts the method of measuring the two ends of the rotating bridge at the same time, and the measurement is more efficient. The end limiting member 3 can be used to perform limit measurement in the middle of the two ends of the rotating bridge, and the characteristic that the rotating bridge needs to have the same wet joint spacing as the fixed end bridges at both ends after it is rotated into place, that is, the rotating When the bridge rotates to any position, the distance between its two ends and the fixed end bridge should be consistent, otherwise it means that there may be hidden dangers of deviation in the bridge. The measurement of this structure is direct and efficient. During the rotation of the bridge, the limit connecting rope 301 can be automatically tightened to avoid the relaxation of the limit connecting rope 301 affecting the measurement accuracy. The two limit connecting ropes 301 can be controlled to tighten the same displacement at the same time to ensure the sustainability of the measurement. The two driving worms 104 are driven to rotate by the double-headed servo motor 103, which can 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, realize the tightening of the limit connecting rope 301, ensure the measurement accuracy, and avoid the relaxation of the limit connecting rope 301.

[0024] 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. ;

[0025] In the embodiment of the present application, the rotating fixing member 5 includes: a rotating fixing ring 501, a rotating shaft 502 and a fixed seat 503, the rotating fixing ring 501 is fixedly installed on the measuring sliding cylinder 401; the rotating shaft 502 is rotatably installed at the bottom of the rotating fixing ring 501; the fixed seat 503 is fixedly installed at the bottom of the rotating shaft 502, and a circle of through holes is provided on the fixed seat 503; the circle of through holes on the fixed seat 503 is used to pass bolts to be installed in the middle of the end of the fixed end bridge. When the bridge rotates, the rotating shaft 502 is used to cooperate with the fixed seat 503, and real-time rotation adaptation can be performed to ensure that the limiting connecting rope 301 is adapted to the angle of the fixed end bridge when the bridge rotates, thereby ensuring measurement accuracy.

[0026] Embodiment 2, on the basis of embodiment 1, 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 fixed end bridge end; the fixing seat 503 is located in the middle of the positioning rod 601; two connecting steel bars 602 are fixedly mounted at the bottom of the positioning rod 601; the steel bar guide 7 comprises: a guide sheet 701 and a guide inclined plate 7011, two connecting steel bars 602 are fixed on A row of guide pieces 701 are fixedly installed, and the lengths of the guide pieces 701 in a row are different; the guide pieces 701 in a row are respectively located above the steel bar heads at the ends of the fixed end bridge; guide inclined panels 7011 are fixedly installed on both sides of the guide pieces 701, and the two guide inclined panels 7011 are inclined structures; the guide inclined panels 7011 are used to guide the steel bar heads at the ends of the rotating bridge, and the steel bar guide pieces 7 used can guide the steel bar heads at both ends of the rotating bridge, and there is no need to bend the steel bar heads at both ends of the rotating bridge and then perform measurement work, which improves work efficiency and avoids manual bending of steel bars at the ends of the bridge. The potential safety hazard caused by the steel bars also ensures 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 itself has width. Otherwise, the bridge rotation will collide. However, the connecting steel bars of the bridge need to be reserved as long as possible, so that there will be a longer welding area when welding the steel bars later. The traditional method requires manual work to stand at the end of the bridge and bend the steel bars upwards to prevent the steel bars from colliding. However, the bent steel bars will affect their strength if they are folded back, and will also block the use of devices such as total stations and measuring rulers. This structure does not require bending of steel bars, and the bent steel bars will not affect the linear measurement of the limit connecting rope 301, thereby improving the safety of bridge construction. When the fixing seat 503 is installed on the top of the fixed end bridge, a row of guide plates 701 are placed between the steel bars of the bridge for guidance. During the subsequent rotation of the bridge, the steel bar head of the rotating bridge will first fit the guiding inclined panel 7011. Through the elastic guidance of the guiding inclined panel 7011, the steel bar head can be guided to slide over the steel bar of the fixed end bridge, and then the steel bar can naturally slide down from the guide plate 701 by using its own elasticity.

[0027] 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 rotates and approaches the fixed end bridge, a more accurate joint position measurement can be performed with a measuring ruler or other tools. After the bridge is rotated, the steel bars will overlap and collide only when they are close. After the bridge is docked, there is a gap between the steel bars of the fixed end bridge and the steel bars of the rotating bridge. After disassembling the fixing seat 503, the guide piece 701 can be taken out from the gap 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 jointing construction can be carried out.

[0028] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0029] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0030] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on 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 piece (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; and the double-headed servo motor (103) is fixedly installed on the control fixing plate (101) by a bracket.

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: The end limiter (3) comprises: a limiter connecting rope (301) and a middle positioning block (302); one end of the limiter connecting rope (301) is fixedly mounted on the other end of the winding steel sheet (203); the limiter connecting rope (301) is a steel wire rope structure; a middle positioning block (302) is slidably sleeved on the limiter connecting rope (301); 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 mounted 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 limiter connecting rope (301).

5. The precision measuring device for rotating bridge construction according to claim 4 is characterized in that: The measuring part (4) comprises: a measuring sliding cylinder (401), a measuring sliding shaft (402) and a toggle block (403); the measuring sliding cylinder (401) is slidably mounted with the measuring sliding shaft (402), and one end of the measuring sliding shaft (402) is fixedly mounted with the other end of the limit connection rope (301); a through slot is provided at the top of the measuring sliding cylinder (401); the other end of the measuring sliding shaft (402) is fixedly mounted with the toggle block (403), and the toggle block (403) is slidably mounted in the measuring sliding cylinder (401), and the toggle block (403) passes through the through slot provided at the top of the measuring sliding cylinder (401).

6. The precision measuring device for rotating bridge construction according to claim 5 is characterized in that: The measuring part (4) further comprises: a pulling spring (404), an electronic ruler (405) and a fixed block (406); the 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); the electronic ruler (405) is fixedly mounted on the toggle block (403), and the end of the electronic ruler (405) is fixedly mounted with a fixed block (406); the fixed block (406) is fixedly mounted on the measuring sliding cylinder (401); and the electronic ruler (405) is externally connected to a display.

7. The precision measuring device for rotating bridge construction according to claim 6 is characterized in that: The measuring part (4) further comprises: a measuring slide shaft (407), a motor switch (408) and a measuring spring (409); the measuring slide shaft (407) is slidably mounted in the measuring sliding cylinder (401), and the motor switch (408) is fixedly mounted on the measuring slide shaft (407), and the motor switch (408) is aligned with the toggle block (403); 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 sliding 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).

8. The precision measuring device for rotating bridge construction according to claim 5, 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.

9. The precision measuring device for rotating bridge construction according to claim 8, 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).

10. The precision measuring device for rotating bridge construction according to claim 9, 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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