Intelligent auxiliary structure convenient for bridge swivel construction

Abstract

The invention discloses an intelligent auxiliary structure convenient for bridge swivel construction, and belongs to the field of bridge swivel angle measurement and correction. The structure comprises a plurality of angle measuring mechanisms which are arranged between a lower bearing platform and an upper bearing platform in an annular array mode, each angle measuring mechanism comprises a transmission hydraulic rod and a measuring hydraulic rod, the transmission hydraulic rods are vertically arranged between the lower bearing platform and the upper bearing platform, and the measuring hydraulic rods are arranged outside a steering mechanism. A first oil pipe is connected between the transmission hydraulic rod and the measurement hydraulic rod, and a pressure valve is arranged on the first oil pipe; the measuring hydraulic rods are provided with scales, and when cylinder rods of the multiple measuring hydraulic rods move downwards to the lowest positions of the scales, the included angle between the lower surface of the upper bearing platform and the axis of the lower spherical hinge is 90 degrees. Through cooperation of the transmission hydraulic rod and the measuring hydraulic rod, the angle between the upper bearing platform and the lower bearing platform is detected, the probability of errors caused by vibration is reduced, and meanwhile the upper bearing platform can be corrected.

Description

Technical Field

[0001] The invention relates to the technical field of bridge rotation angle measurement and correction, and in particular to an intelligent auxiliary structure for facilitating bridge rotation construction. Background Art

[0002] In the field of bridge rotation construction, precise control of the rotation angle is the core element to ensure construction safety and bridge structure stability.

[0003] In the past, during construction, the angle between the upper and lower pedestals was measured mainly by construction workers relying on their experience and simple tools, which made it difficult for the angle between the lower surface of the upper pedestal and the axis of the lower ball joint to accurately reach the critical fixed angle of 90 degrees. Once the angle deviates, when the bridge rotates, the upper pedestal will be unevenly stressed, which can easily lead to serious problems such as deformation of the bridge structure and inaccurate rotation. This not only affects the normal use of the bridge, but may also pose a safety hazard.

[0004] Although there are some angle measuring equipment on the market, in the construction of bridge rotation, it is only necessary to detect whether the angle between the lower surface of the upper pedestal and the axis of the lower ball joint reaches ninety degrees. Although the existing devices have many functions, they are not necessary for the construction of bridge rotation. In addition, large vibrations will be generated during the rotation of the bridge, causing more complex electronic components to vibrate, which may lead to errors, making it difficult for construction personnel to take effective adjustment measures in time. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent auxiliary structure that is convenient for bridge rotation construction, thereby solving the problem that the existing device has a complex structure and is easily affected by vibration during the construction process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent auxiliary structure for facilitating the construction of bridge rotation, comprising a steering mechanism and a supporting mechanism, wherein the steering mechanism comprises a lower bearing platform and an upper bearing platform, wherein a lower ball joint is connected to the lower bearing platform, and an upper ball joint is connected to the bottom of the upper bearing platform, wherein the upper ball joint rotates on the lower ball joint, and further comprises a plurality of angle measuring mechanisms placed in an annular array between the lower bearing platform and the upper bearing platform, wherein the angle measuring mechanism comprises a transmission hydraulic rod and a measuring hydraulic rod, wherein the transmission hydraulic rod is vertically placed between the lower bearing platform and the upper bearing platform, and the measuring hydraulic rod is placed outside the steering mechanism, wherein a first oil pipe is connected between the transmission hydraulic rod and the measuring hydraulic rod, and a pressure valve is provided on the first oil pipe;

[0007] The measuring hydraulic rods are provided with scales. After multiple measuring hydraulic rods are shortened to cause the driving hydraulic rod to extend and its two ends to respectively abut against the upper bearing platform and the lower bearing platform, the hydraulic oil in the measuring hydraulic rods is discharged so that the cylinder rods of the measuring hydraulic rods move down to the lowest position of the scales. Moreover, when the cylinder rods of multiple measuring hydraulic rods all move down to the lowest position of the scales, the included angle between the lower surface of the upper bearing platform and the axis of the lower spherical hinge is ninety degrees;

[0008] When the upper bearing platform is inclined relative to the lower bearing platform, the upper bearing platform squeezes the driving hydraulic rod on the inclined side to shorten, so that the cylinder rod of the measuring hydraulic rod moves upward relative to the scale.

[0009] Preferably, the angle measuring mechanism further includes a mounting plate hinged to the output end of the driving hydraulic rod. A plurality of balls are rollingly connected to the upper surface of the mounting plate, and a plurality of the balls all roll on the lower surface of the upper bearing platform.

[0010] Preferably, the angle measuring mechanism further includes a horizontal plate fixedly connected to the cylinder rod of the driving hydraulic rod. Four corners of the lower surface of the mounting plate are respectively connected with support rods. Through holes for clearance fit with the four support rods are formed in the horizontal plate. Springs are sleeved on the support rods, and two ends of the springs respectively abut against the horizontal plate and the mounting plate.

[0011] Preferably, an angle measuring instrument for detecting the swinging angle of the mounting plate is connected to the horizontal plate.

[0012] Preferably, the angle measuring mechanism further includes a mounting frame, and the measuring hydraulic rod is fixedly connected to the mounting frame.

[0013] Preferably, a deviation correction mechanism is further included. The deviation correction mechanism includes a pushing hydraulic rod connected to the mounting frame. After the corresponding angle measuring instrument detects the swinging of the mounting plate, the corresponding pushing hydraulic rod extends to cause the measuring hydraulic rod to shorten until its cylinder rod is located at the lowest position of the scale, so that the included angle between the lower surface of the upper bearing platform and the axis of the lower spherical hinge is restored to ninety degrees.

[0014] Preferably, the support mechanism includes an annular slideway connected to the lower bearing platform. The deviation correction mechanism further includes a sliding seat fixedly connected to the annular slideway. A sliding table is slidably connected to the sliding seat. The driving hydraulic rod is fixedly connected to the sliding table. A displacement hydraulic rod is connected in the sliding table, and the output end of the displacement hydraulic rod abuts against the sliding seat. When the elongation resistance of the pushing hydraulic rod increases, the displacement hydraulic rod extends to cause the sliding table to slide in the direction away from the upper bearing platform.

[0015] Preferably, the deviation rectifying mechanism further includes an output rod disposed on the output rod of the pushing hydraulic rod. A cylindrical cavity is formed in the output rod. A cylindrical rod is slidably connected in the cylindrical cavity. The upper space of the cylindrical cavity in the cylindrical cavity is filled with hydraulic oil. A second oil pipe is communicated between the cylindrical cavity and the displacement hydraulic rod. A pressure valve is disposed on the second oil pipe, and the pressure threshold of the pressure valve on the second oil pipe is higher than the pressure threshold of the pressure valve on the first oil pipe.

[0016] Preferably, a pressing plate is connected to the bottom end of the cylindrical rod. A reset plate is connected to the middle of the mounting frame. A through hole is formed in the reset plate. The diameter of the through hole is larger than the output rod and smaller than the pressing plate.

[0017] Preferably, a magnet is fixedly connected to the sliding seat, and the output end of the displacement hydraulic rod is magnetically attracted to the magnet.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the present invention, the transmission hydraulic rod is placed on the lower bearing platform, and the measuring hydraulic rod is manually pressed or pressed by an external hydraulic press, so that the hydraulic oil in the measuring hydraulic rod is conducted to the measuring hydraulic rod through the first oil pipe, so that the top of the measuring hydraulic rod abuts against the upper bearing platform. The pressure valve disposed on the first oil pipe can resist the shortening of the transmission hydraulic rod caused by the gravity drop of the cylinder rod of the transmission hydraulic rod. A drain valve is disposed on the measuring hydraulic rod. After the transmission hydraulic rod abuts against the upper bearing platform and the lower bearing platform, if the hydraulic oil in the measuring hydraulic rod is not emptied, the drain valve on the measuring hydraulic rod is opened to empty the hydraulic oil in the measuring hydraulic rod. Thus, the cylinder rod of the measuring hydraulic rod slides to the lowermost part of the scale, and the scale corresponding to the lowermost part of the scale is ninety degrees. By adjusting a plurality of angle measuring mechanisms, the upper bearing platform and the lower bearing platform are in a coaxial state. During the rotation of the bridge, the double support feet support the upper bearing platform. If the upper bearing platform is offset, the transmission hydraulic rod on the offset side of the upper bearing platform is pressured and shortened. At this time, the hydraulic rod in the transmission hydraulic rod is transmitted into the measuring hydraulic rod, so that the cylinder rod of the measuring hydraulic rod moves upward. After the upward movement of the cylinder rod of the measuring hydraulic rod stops, the value of the scale corresponding to the lowermost end of the cylinder rod is the offset angle of the upper bearing platform, and the position where the shortened transmission hydraulic rod is located is the offset direction of the upper bearing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the present invention after installing the angle measuring mechanism;

[0022] Figure 3 is a schematic diagram of the structure at the annular slideway of the present invention;

[0023] Figure 4 Structural schematic diagram of the ball hinge of the present invention;

[0024] Figure 5 Structural schematic diagram of the support mechanism of the present invention;

[0025] Figure 6 Structural schematic diagram of the measuring hydraulic rod of the present invention;

[0026] Figure 7 Structural schematic diagram of the cylindrical cavity of the present invention;

[0027] Figure 8 Structural schematic diagram of the mounting plate of the present invention;

[0028] Figure 9 Structural schematic diagram of the displacement hydraulic rod of the present invention.

[0029] In the figure: 100, steering mechanism; 110, lower bearing platform; 120, upper bearing platform; 130, upper ball hinge; 140, lower ball hinge; 150, cable; 160, reaction seat; 200, support mechanism; 210, annular slideway; 220, double support feet; 230, sand box; 300, angle measuring mechanism; 310, mounting frame; 320, measuring hydraulic rod; 321, scale; 322, first oil pipe; 330, driving hydraulic rod; 331, horizontal plate; 332, mounting plate; 333, ball; 334, support rod; 335, spring; 400, deviation rectifying mechanism; 410, pushing hydraulic rod; 420, output rod; 421, cylindrical cavity; 430, cylindrical rod; 431, pressing plate; 432, reset plate; 440, second oil pipe; 450, sliding seat; 460, sliding table; 470, displacement hydraulic rod; 480, magnet. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Refer to Figures 1-9, this embodiment provides a technical solution: an intelligent auxiliary structure facilitating the rotation construction of a bridge, including a steering mechanism 100 and a support mechanism 200. The steering mechanism 100 includes a lower bearing platform 110 and an upper bearing platform 120. A lower spherical hinge 140 is connected to the lower bearing platform 110, and an upper spherical hinge 130 is connected to the bottom of the upper bearing platform 120. The upper spherical hinge 130 rotates on the lower spherical hinge 140. It also includes a plurality of angle measuring mechanisms 300 placed in an annular array between the lower bearing platform 110 and the upper bearing platform 120. The angle measuring mechanism 300 includes a driving hydraulic rod 330 and a measuring hydraulic rod 320. The driving hydraulic rod 330 is vertically placed between the lower bearing platform 110 and the upper bearing platform 120, and the measuring hydraulic rod 320 is placed outside the steering mechanism 100. A first oil pipe 322 is connected between the driving hydraulic rod 330 and the measuring hydraulic rod 320, and a pressure valve is provided on the first oil pipe 322; a scale 321 is provided on the measuring hydraulic rod 320. After the plurality of measuring hydraulic rods 320 are shortened to make the driving hydraulic rod 330 extend and its two ends respectively abut against the upper bearing platform 120 and the lower bearing platform 110, the hydraulic oil in the measuring hydraulic rod 320 is discharged to make the cylinder rod of the measuring hydraulic rod 320 move down to the lowest point of the scale 321. And when the cylinder rods of the plurality of measuring hydraulic rods 320 all move down to the lowest point of the scale 321, the included angle between the lower surface of the upper bearing platform 120 and the axis of the lower spherical hinge 140 is ninety degrees; when the upper bearing platform 120 is inclined relative to the lower bearing platform 110, the upper bearing platform 120 squeezes the driving hydraulic rod 330 on the inclined side to shorten, so that the cylinder rod of the measuring hydraulic rod 320 moves up relative to the scale 321.

[0032] The lower spherical hinge 140 and the annular slideway 210 are cast in the lower bearing platform 110. Subsequently, the upper spherical hinge 130 is installed on the lower spherical hinge 140. Then, the double support feet 220 are placed on the annular slideway 210 and fixed with steel bars. After that, the upper spherical hinge 130 and the double support feet 220 are cast on the upper bearing platform 120. The sand box 230 is placed on the annular slideway 210 to support the upper bearing platform 120 and the lower bearing platform 110. Subsequently, the bridge is constructed. After the bridge construction is completed, it is rotated. The end of the cable 150 is passed through the reaction seat 160 and then the cable 150 is pre-tightened. Then, the sand box 230 is removed, and the angle measuring mechanism 300 is placed between the upper bearing platform 120 and the lower bearing platform 110 to apply a pulling force to the cable 150, so that the bridge starts to rotate;

[0033] The transmission hydraulic rod 330 is placed on the lower bearing platform 110. Manually or using an external hydraulic press to press the measuring hydraulic rod 320, so that the hydraulic oil in the measuring hydraulic rod 320 is conducted to the measuring hydraulic rod 320 through the first oil pipe 322, making the top of the measuring hydraulic rod 320 abut against the upper bearing platform 120. The pressure valve set on the first oil pipe 322 can resist the shortening of the transmission hydraulic rod 330 caused by the gravity fall of the cylinder rod of the transmission hydraulic rod 330. There is an oil drain valve set on the measuring hydraulic rod 320. After the transmission hydraulic rod 330 abuts against the upper bearing platform 120 and the lower bearing platform 110, if the hydraulic oil in the measuring hydraulic rod 320 is not emptied, then open the oil drain valve on the measuring hydraulic rod 320 to empty the hydraulic oil in the measuring hydraulic rod 320, so that the cylinder rod of the measuring hydraulic rod 320 slides to the lowermost part of the scale 321, and the scale 321 corresponding to the lowermost part of the scale 321 is ninety degrees. By adjusting multiple angle measuring mechanisms 300, the upper bearing platform 120 and the lower bearing platform 110 are in a coaxial state. During the rotation of the bridge, the double support feet 220 support the upper bearing platform 120. If the upper bearing platform 120 is offset, the transmission hydraulic rod 330 on the offset side of the upper bearing platform 120 is pressured and shortened. At this time, the hydraulic rod in the transmission hydraulic rod 330 is transmitted to the measuring hydraulic rod 320, so that the cylinder rod of the measuring hydraulic rod 320 moves upward. After the upward movement of the cylinder rod of the measuring hydraulic rod 320 stops, the value of the scale 321 corresponding to the lowermost end of the cylinder rod is the offset angle of the upper bearing platform 120, and the position where the shortened transmission hydraulic rod 330 is located is the offset direction of the upper bearing platform 120;

[0034] It should be noted here that when the angle value read through the scale 321 deviates, stop the pulling of the cable 150 to make the bridge stop turning. Then adjust the relative positions of the upper bearing platform 120 and the lower bearing platform 110 to make the measuring hydraulic rod 320 shorten to the shortest state. At this time, the angle between the lower surface of the upper bearing platform 120 and the axis of the lower spherical hinge 140 is ninety degrees. Then continue the bridge turning;

[0035] The transmission hydraulic rod 330 plays a role in perceiving the angle deviation and does not act as a support for the upper bearing platform 120.

[0036] The angle measuring mechanism 300 further includes a mounting plate 332 hinged to the output end of the transmission hydraulic rod 330. A plurality of balls 333 are rollingly connected to the upper surface of the mounting plate 332, and a plurality of balls 333 all roll on the lower surface of the upper bearing platform 120.

[0037] By setting the mounting plate 332 to be hinged to the output end of the transmission hydraulic rod 330, when the upper bearing platform 120 deviates, the mounting plate 332 can swing synchronously, playing a role in stable contact. The setting of the ball 333 can reduce the friction between the upper bearing platform 120 and the mounting plate 332 when the upper bearing platform 120 rotates. At the same time, by setting the mounting plate 332, the pressure between the transmission hydraulic rod 330 and the upper bearing platform 120 is also reduced.

[0038] The angle measuring mechanism 300 further includes a horizontal plate 331 fixedly connected to the cylinder rod of the transmission hydraulic rod 330. Four corner portions of the lower surface of the mounting plate 332 are each connected with a support rod 334. Through holes that are in clearance fit with the four support rods 334 are formed in the horizontal plate 331. A spring 335 is sleeved on the support rod 334, and two ends of the spring 335 respectively abut against the horizontal plate 331 and the mounting plate 332.

[0039] When the upper bearing platform 120 has an angular deviation, the transmission hydraulic rod 330 on the deviation side is compressed. At the same time, the mounting plate 332 at the output end of this transmission hydraulic rod 330 swings, so that the mounting plate 332 can be kept parallel to the upper bearing platform 120. The setting of the spring 335 enables the mounting plate 332 on the side opposite to the deviation of the upper bearing platform 120 to maintain a horizontal state.

[0040] An angle measuring instrument for detecting the swing angle of the mounting plate 332 is connected to the horizontal plate 331.

[0041] The angle measuring instrument can be a laser type or a gyroscope, etc. When the angle measuring instrument detects the swing of the mounting plate 332 above it, it can send a signal to the control system and present it through the terminal, enabling the operator to know the deviation direction of the upper bearing platform 120. At the same time, after receiving the signal, the control system can control the corresponding measuring hydraulic rod 320 to execute a shortening instruction to adjust the angle of the upper bearing platform 120.

[0042] The angle measuring mechanism 300 further includes a mounting frame 310, and the measuring hydraulic rod 320 is fixedly connected to the mounting frame 310.

[0043] The setting of the mounting frame 310 protects the measuring hydraulic rod 320. The cylinder body of the measuring hydraulic rod 320 is made of a transparent material, so that the relative position between its cylinder rod and the scale 321 can be visually observed. The mounting frame 310 is placed on the external ground of the steering mechanism 100. And since the rotation angle of the bridge is generally about ninety degrees and the rotation speed is slow, the double support feet 220 will not affect pipelines such as the first oil pipe 322.

[0044] It further includes a deviation rectifying mechanism 400. The deviation rectifying mechanism 400 includes a push hydraulic rod 410 connected to the mounting frame 310. After the corresponding angle measuring instrument detects the swing of the mounting plate 332, the corresponding push hydraulic rod 410 extends, so that the measuring hydraulic rod 320 shortens until its cylinder rod is at the lowest point of the scale 321, thereby restoring the included angle between the lower surface of the upper bearing platform 120 and the axis of the lower ball hinge 140 to ninety degrees.

[0045] The push hydraulic rod 410 corresponds to the measuring hydraulic rod 320 and the transmission hydraulic rod 330 one by one. The angle sensor on the transmission hydraulic rod 330 controls the operation of the corresponding push hydraulic rod 410. When the control system receives the angle deviation information sent by the angle sensor, it controls the corresponding push hydraulic rod 410 to extend. And since the included angle between the lower surface of the upper bearing platform 120 and the axis of the lower ball hinge 140 is ninety degrees when the measuring hydraulic rod 320 is shortened to the shortest state, the extension length of the push hydraulic rod 410 does not need to be deliberately set. Just push the measuring hydraulic rod 320 to its shortest state to complete the correction of the angle of the upper bearing platform 120.

[0046] The support mechanism 200 includes an annular slideway 210 connected to the lower bearing platform 110. The deviation rectifying mechanism 400 further includes a slide block 450 fixedly connected to the annular slideway 210. A slide table 460 is slidably connected to the slide block 450. The transmission hydraulic rod 330 is fixedly connected to the slide table 460. A displacement hydraulic rod 470 is connected inside the slide table 460. The output end of the displacement hydraulic rod 470 abuts against the slide block 450. When the elongation resistance of the push hydraulic rod 410 increases, the displacement hydraulic rod 470 extends, so that the slide table 460 slides in the direction outside the upper bearing platform 120.

[0047] The slide block 450 is connected to the inner side of the annular slideway 210. The slide table 460 and the slide block 450 are matched by a slide block and a slide groove. After the slide table 460 is installed on the slide block 450, there will be no relative movement in the vertical direction. Since the bridge on the top of the pier is horizontally arranged, as the upper bearing platform 120 rotates, the thrust required to correct the angle of the upper bearing platform 120 is also different. When the direction of the bridge coincides with the orientation of the transmission hydraulic rod 330, the load of the push hydraulic rod 410 increases. At this time, the slide table 460 is driven to slide in the direction outside the upper bearing platform 120, relying on the lever principle to reduce the load of the push hydraulic rod 410;

[0048] It should be noted here that when the upper bearing platform 120 and the lower bearing platform 110 are coaxial, the distance between the lower surface of the upper bearing platform 120 and the upper surface of the lower bearing platform 110 is fixed. No matter how the transmission hydraulic rod 330 moves radially, its top end can abut against the lower surface of the upper bearing platform 120.

[0049] The deviation rectifying mechanism 400 further includes an output rod 420 disposed on the driving hydraulic rod 410. A cylindrical cavity 421 is formed in the output rod 420. A cylindrical rod 430 is slidably connected in the cylindrical cavity 421. The upper space of the cylindrical cavity 421 in the cylindrical cavity 421 is filled with hydraulic oil. A second oil pipe 440 is communicated between the cylindrical cavity 421 and the displacement hydraulic rod 470. A pressure valve is provided on the second oil pipe 440, and the pressure threshold of the pressure valve on the second oil pipe 440 is higher than the pressure threshold of the pressure valve on the first oil pipe 322.

[0050] When the load of the driving hydraulic rod 410 increases, the force for the cylindrical rod 430 to move upward relative to the cylindrical cavity 421 also increases. When the pressure in the cylindrical cavity 421 breaks through the threshold of the pressure valve on the second oil pipe 440, the hydraulic oil in the cylindrical cavity 421 is transferred into the displacement hydraulic rod 470. At this time, the displacement hydraulic rod 470 pushes the slide block 450 to make the slide table 460 slide outward in the direction of the upper bearing platform 120, thereby increasing the force application lever arm of the transmission hydraulic rod 330.

[0051] A pressing plate 431 is connected to the bottom end of the cylindrical rod 430. A reset plate 432 is connected to the middle of the mounting frame 310. A through hole is formed in the reset plate 432, and the diameter of the through hole is larger than the output rod 420 and smaller than the pressing plate 431.

[0052] After the measuring hydraulic rod 320 is pressed by the driving hydraulic rod 410 and returns to the shortest state, the driving hydraulic rod 410 then shortens. When the pressing plate 431 contacts the reset plate 432, the driving hydraulic rod 410 continues to shorten. As a result, the cylindrical rod 430 moves downward relative to the output rod 420, so that the cylindrical cavity 421 extracts the hydraulic oil in the displacement hydraulic rod 470, causing the slide table 460 to reset. At this time, the transmission hydraulic rod 330 continues to sense the angle of the upper bearing platform 120.

[0053] A magnet 480 is fixedly connected to the slide block 450, and the output end of the displacement hydraulic rod 470 is magnetically attracted to the magnet 480.

[0054] The magnet 480 fixes the output end of the displacement hydraulic rod 470, so that when the displacement hydraulic rod 470 shortens, the slide table 460 can be stably reset;

[0055] In addition, the magnet 480 can also be replaced. A rotary buckle is provided at the output end of the displacement hydraulic rod 470, and a matching rotary card slot is provided on the slide block 450. After the end of the displacement hydraulic rod 470 abuts against the rotary card slot and rotates, locking and unlocking can be completed. After the bridge turning is completed, the angle measuring mechanism 300 and the deviation rectifying mechanism 400 are removed to complete the final fixed pouring of the bridge pier.

[0056] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent auxiliary structure for facilitating the construction of a bridge rotation, comprising a steering mechanism (100) and a supporting mechanism (200), wherein the steering mechanism (100) comprises a lower support platform (110) and an upper support platform (120), wherein the lower support platform (110) is connected to a lower ball joint (140), and the bottom of the upper support platform (120) is connected to an upper ball joint (130), wherein the upper ball joint (130) rotates on the lower ball joint (140), and wherein: The steering mechanism (100) further comprises a plurality of angle measuring mechanisms (300) placed in a ring array between the lower support platform (110) and the upper support platform (120), wherein the angle measuring mechanisms (300) comprise a transmission hydraulic rod (330) and a measuring hydraulic rod (320), wherein the transmission hydraulic rod (330) is placed vertically between the lower support platform (110) and the upper support platform (120), and the measuring hydraulic rod (320) is placed outside the steering mechanism (100), and a first oil pipe (322) is connected between the transmission hydraulic rod (330) and the measuring hydraulic rod (320), and a pressure valve is provided on the first oil pipe (322); The measuring hydraulic rod (320) is provided with a scale (321). After the plurality of measuring hydraulic rods (320) are shortened so that the transmission hydraulic rod (330) is extended and its two ends are respectively abutted against the upper support platform (120) and the lower support platform (110), the hydraulic oil in the measuring hydraulic rod (320) is discharged so that the cylinder rod of the measuring hydraulic rod (320) moves down to the lowest point of the scale (321); and when the cylinder rods of the plurality of measuring hydraulic rods (320) all move down to the lowest point of the scale (321), the angle between the lower surface of the upper support platform (120) and the axis of the lower ball joint (140) is ninety degrees. When the upper support platform (120) is inclined toward the lower support platform (110), the upper support platform (120) squeezes the transmission hydraulic rod (330) on the inclined side to shorten it, so that the cylinder rod of the measuring hydraulic rod (320) moves upward relative to the scale (321).

2. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 1 is characterized in that: The angle measuring mechanism (300) further comprises a mounting plate (332) hinged to the output end of the transmission hydraulic rod (330), the upper surface of the mounting plate (332) being rollingly connected to a plurality of balls (333), and the plurality of balls (333) all rolling on the lower surface of the upper support platform (120).

3. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 2 is characterized in that: The angle measuring mechanism (300) further comprises a horizontal plate (331) fixedly connected to the cylinder rod of the transmission hydraulic rod (330); four corners of the lower surface of the mounting plate (332) are connected to support rods (334); the horizontal plate (331) is provided with through holes that are clearance-matched with the four support rods (334); a spring (335) is sleeved on the support rod (334); and two ends of the spring (335) are respectively abutted against the horizontal plate (331) and the mounting plate (332).

4. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 3 is characterized in that: The horizontal plate (331) is connected to an angle measuring instrument for detecting the swing angle of the mounting plate (332).

5. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 4 is characterized in that: The angle measuring mechanism (300) further comprises a mounting frame (310), and the measuring hydraulic rod (320) is fixedly connected to the mounting frame (310).

6. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 5 is characterized in that: It also includes a correction mechanism (400), which includes a pushing hydraulic rod (410) connected to the mounting frame (310). After the corresponding angle measuring instrument detects that the mounting plate (332) is swinging, the corresponding pushing hydraulic rod (410) is extended to shorten the measuring hydraulic rod (320) until its cylinder rod is located at the lowest point of the scale (321), thereby restoring the angle between the lower surface of the upper support platform (120) and the axis of the lower ball joint (140) to ninety degrees.

7. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 6 is characterized in that: The support mechanism (200) includes an annular slideway (210) connected to the lower support platform (110), and the deviation correction mechanism (400) also includes a slide seat (450) fixedly connected to the annular slideway (210), a slide table (460) is slidably connected to the slide seat (450), the transmission hydraulic rod (330) is fixedly connected to the slide table (460), a displacement hydraulic rod (470) is connected inside the slide table (460), the output end of the displacement hydraulic rod (470) abuts against the slide seat (450), and when the extension resistance of the pushing hydraulic rod (410) increases, the displacement hydraulic rod (470) extends to make the slide table (460) slide toward the outside of the upper support platform (120).

8. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 7 is characterized in that: The deviation correction mechanism (400) further comprises an output rod (420) arranged on the pushing hydraulic rod (410), a cylindrical cavity (421) being provided in the output rod (420), a cylindrical rod (430) being slidably connected in the cylindrical cavity (421), a space in the upper part of the cylindrical cavity (421) being filled with hydraulic oil, a second oil pipe (440) being connected between the cylindrical cavity (421) and the displacement hydraulic rod (470), a pressure valve being provided on the second oil pipe (440), and a pressure threshold of the pressure valve on the second oil pipe (440) being higher than a pressure threshold of the pressure valve on the first oil pipe (322).

9. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 8 is characterized in that: The bottom end of the cylindrical rod (430) is connected to a pressing plate (431), the middle of the mounting frame (310) is connected to a reset plate (432), and a through hole is formed on the reset plate (432), wherein the diameter of the through hole is larger than that of the output rod (420) and smaller than that of the pressing plate (431).

10. The intelligent auxiliary structure for facilitating bridge rotation construction according to claim 7 is characterized in that: A magnet (480) is fixedly connected to the slide seat (450), and the output end of the displacement hydraulic rod (470) is magnetically attracted to the magnet (480).

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