Continuous beam bridge machine and construction method

Abstract

This invention relates to the field of bridge-building machine technology, and discloses a continuous beam bridge-building machine and its construction method. The continuous beam bridge-building machine includes a machine body and multiple vibrators. Multiple mounting plates are fixedly connected to the lower part of the machine body, and the vibrators are fixedly connected to the mounting plates. Anti-fall components are provided on both sides of the vibrators. The anti-fall components prevent the vibrators from falling. Each anti-fall component includes two fixed rods, which are respectively fixedly connected to both sides of the vibrator. Two sliding plates are slidably connected inside the fixed rods. This invention, through the T-shaped locking structure formed by the fixed rods and sliding plates of the anti-fall components, combined with the mounting groove, not only prevents the vibrators from falling from a height due to loose bolts, but also structurally limits the horizontal displacement, swaying, and torsion of the vibrators. This avoids the problem of continuous swaying due to inertia and wind load after the vibrators detach, which could impact the bridge-building machine template and damage the vibrators.

Description

Technical Field

[0001] This invention belongs to the field of bridge building machine technology, specifically relating to a continuous beam bridge building machine and its construction method. Background Technology

[0002] The continuous beam bridge building machine is a core specialized piece of equipment for the assembly and construction of precast segments of large-span continuous beam bridges in highway and railway engineering. It is primarily used to achieve key processes such as high-altitude hoisting, precise alignment, and splicing of precast beam segments, providing an integrated operating platform for the efficient construction of continuous beam bridges.

[0003] The vibrator is a key auxiliary component of this equipment. Multiple sets are arranged at the bottom of the bridge-building machine. It achieves the compaction of concrete mixture through high-frequency vibration and is an important component to ensure the quality of bridge pouring construction. Due to the requirements of construction conditions, the vibrator needs to be in a high-frequency vibration state for a long time. It is mostly installed at the high-altitude operation points of the bridge-building machine. The reliability of its fixation to the bridge-building machine directly determines the construction safety and equipment integrity. Therefore, the industry needs to set up anti-fall protection structures for the vibrator to prevent it from falling from a height due to loose fixing parts.

[0004] Traditional solutions often employ secondary suspension with steel wire ropes / chains, using clamps for limiting and bolts to prevent loosening (double nuts, spring washers). Current methods use steel wire ropes to prevent the vibrator from falling. However, steel wire ropes are flexible components, only capable of withstanding tensile force, lacking bending, lateral displacement, and torsional stiffness. Furthermore, after installation, they cannot remain taut and remain slack, offering no constraint on the vibrator's horizontal displacement, oscillation, or torsion. The vibrator's working principle involves a drive unit moving the vibrating unit to generate vibration. The core of the vibration effect depends on the inertial impact force of the vibrating unit. To ensure the required vibration effect during construction, the vibrating unit typically needs a large mass, resulting in a relatively heavy overall weight for the vibrator. When the vibrator is used for extended periods, the fixed vibration... The bolts of the vibrator may loosen under continuous vibration, causing the vibrator to detach from its installation point. This detachment is not a smooth, vertical fall, but rather an instantaneous impact after the bolts loosen, resulting in relative displacement and oblique velocity with the wire rope. This directly generates initial oscillating kinetic energy, which is further amplified by the continuous lateral forces from wind loads at the construction site. Furthermore, the suspension structure lacks any lateral limiting, guiding, or damping devices to suppress or dissipate the oscillation energy. The strong inertia from its large mass causes the oscillation to continue and its amplitude to amplify. Therefore, after detaching, the vibrator suspended on the wire rope will inevitably sway significantly. This can cause the vibrator to impact weaker areas of the formwork during oscillation, potentially creating dents or even damaging the vibrator itself. Summary of the Invention

[0005] This invention provides a continuous beam bridge construction machine and construction method, which solves the technical problem in related technologies that the steel wire rope cannot restrain the displacement and swing of the vibrator after the vibrator falls off, resulting in the vibrator shaking and hitting the template and damaging itself.

[0006] The present invention provides a continuous beam bridge building machine, including a bridge building machine body and multiple vibrators. Multiple mounting plates are fixedly connected to the lower part of the bridge building machine body, and the vibrators are fixedly connected to the mounting plates. Anti-fall components are provided on both sides of the vibrators.

[0007] The fall arrestor is used to prevent the vibrator from falling.

[0008] The fall arrestor assembly includes two fixed rods, which are fixedly connected to both sides of the vibrator. Two sliding plates are slidably connected inside the fixed rods, and two limiting plates are fixedly connected inside the fixed rods. The limiting plates are slidably connected to the sliding plates. A spring is fixedly connected to one side of the limiting plate. The end of the spring away from the limiting plate is fixedly connected to the sliding plate. The fixed rods are slidably connected to the mounting plate, and the sliding plates and the mounting plate form a limiting and abutting fit.

[0009] In a preferred embodiment, two mounting slots are provided inside the mounting plate, and one end of the fixing rod is located inside the mounting slot and forms a sliding guide engagement with the mounting slot.

[0010] The fixed rod has two sliding grooves inside. The groove direction of the sliding groove is the same as the width direction of the fixed rod. The length of the sliding groove is the same as the length of the sliding plate. The sliding groove passes through the fixed rod. The sliding plate is located inside the sliding groove and forms a sliding guide engagement with the sliding groove.

[0011] A sliding groove six is ​​provided on one side of the sliding plate. The groove direction of the sliding groove six is ​​consistent with the length direction of the sliding plate. The limiting plate is located inside the sliding groove six and forms a sliding guide engagement with the sliding groove six. The end of the limiting plate away from the sliding plate is fixedly connected to the sliding groove one. The spring one is located inside the sliding groove six.

[0012] In a preferred embodiment, a locking mechanism is provided inside the fixed rod to lock the position of the sliding plate. The locking mechanism includes a locking plate that is slidably connected to the fixed rod. A trigger block is fixedly connected to the lower part of the locking plate, and a plurality of springs are fixedly connected to the lower part of the locking plate. One end of each spring is fixedly connected to the fixed rod away from the locking plate. A limit block is fixedly connected to the upper part of the sliding plate, and the locking plate abuts against one side of the limit block.

[0013] In a preferred embodiment, a groove four is provided inside the fixing rod, the groove direction of the groove four is consistent with the radial direction of the fixing rod, the locking plate is located inside the groove four and forms a sliding guide engagement with the groove four, one end of the trigger block is located inside the groove four, and the other end of the trigger block passes through the fixing rod.

[0014] In a preferred embodiment, the fixed rod has two sliding grooves II inside, the groove direction of sliding groove II is the same as that of sliding groove I, the limiting block is located inside sliding groove II and forms a sliding guide engagement with sliding groove II, and sliding groove II and sliding groove I are connected.

[0015] In a preferred embodiment, the continuous beam bridge-building machine further includes a locking assembly disposed inside the bridge-building machine body. The locking assembly includes two spur gears, both of which are rotatably connected to the inside of a fixed rod. A toothed plate is fixedly connected to the upper part of a sliding plate, and the toothed plate and the spur gears mesh with each other. A ratchet is fixedly connected to one side of the spur gears. Two rotating rods are rotatably connected inside the fixed rod. A ratchet plate is fixedly connected to one end of each rotating rod. A coil spring is sleeved on the outer wall of each rotating rod. One end of the coil spring is fixedly connected to the outer wall of the rotating rod, and the other end is fixedly connected to the fixed rod. The end of the ratchet plate facing away from the rotating rod abuts against the ratchet. The ratchet plate and the ratchet form a limiting contact fit. The cross-section of the mounting groove is trapezoidal, and the sliding plate and the side of the mounting groove form a wedge fit.

[0016] In a preferred embodiment, the continuous beam bridge-building machine further includes a switching component for releasing the unidirectional rotation restriction of the locking component;

[0017] The switching assembly includes a switching mechanism, which includes a sliding block. The sliding block is slidably connected to the upper part of the fixed rod. Two connecting rods are rotatably connected to the lower end of the sliding block. A rotating rod three is rotatably connected to the end of the connecting rod away from the sliding block. The end of the rotating rod three away from the connecting rod is fixedly connected to the rotating rod one.

[0018] In a preferred embodiment, the switching assembly further includes a limiting mechanism, which includes a limiting rod slidably connected to the upper part of the fixed rod. One end of the limiting rod slides inside the sliding block, and a spring clip is provided inside the fixed rod to limit the sliding of the limiting rod.

[0019] In a preferred embodiment, a sliding groove five is provided on the upper part of the fixed rod. The groove five is perpendicular to the radial direction of the fixed rod. The limiting rod is located inside the sliding groove five and forms a sliding guide engagement with the sliding groove five. The sliding groove five and the sliding groove three are connected.

[0020] A construction method for a continuous beam bridge-building machine includes the following steps:

[0021] Step 1: Construction preparation, including site surveying and assembling the continuous beam bridge-building machine;

[0022] Step 2: Position the continuous beam bridge-building machine, start the traveling mechanism to move the entire machine to the designed position of the span to be constructed, and lock the support system to ensure stable operation;

[0023] Step 3: Segment hoisting and alignment. The precast beam segments are hoisted to the alignment area using a matching lifting device. The segment axis, elevation, and joint gap are then precisely adjusted to the design parameters using a fine-tuning system.

[0024] Step 4: Segment splicing. Apply epoxy adhesive to the mating surfaces, splice adjacent segments in the preset order, and apply temporary prestress in time to ensure that the joints are tightly fitted and the segments form a temporary stable whole.

[0025] Step 5: Prestressed construction. After the adhesive reaches the design strength, the longitudinal, transverse and vertical prestressing tendons are threaded, tensioned and anchored in batches according to the design sequence and control force, and the prestressing ducts are grouted simultaneously.

[0026] Step Six: System Conversion and Forward Movement. Remove temporary supports, convert the beam's load-bearing system into a permanent continuous beam system, release the continuous beam bridge-building machine from lock, and move it forward to the next span to be constructed.

[0027] Step 7: Ancillary construction and acceptance, including the construction of end anchoring of the beam, bridge deck paving, and crash barriers, while simultaneously conducting beam alignment and stress testing. The main construction is completed after the beam passes the acceptance test.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. This invention uses a T-shaped snap-fit ​​structure formed by the fixing rod and sliding plate of the anti-fall component, along with the mounting groove, to not only prevent the vibrator from falling from a height due to loose bolts, but also to structurally limit the horizontal displacement, swinging and torsion of the vibrator. This avoids the problem of the vibrator continuously swinging due to inertia and wind load after falling off, impacting the bridge-building machine template and damaging the vibrator. At the same time, it ensures the construction safety of high-altitude operations and improves the integrity of the bridge-building machine's supporting equipment.

[0030] 2. This invention achieves the function of unidirectional multiple extension of the sliding plate by cooperating with the spur gear, ratchet gear and ratchet plate, so that when the fixed rod is displaced in the mounting groove, the sliding plate is always in close contact with the side wall of the mounting groove, avoiding the problem of the sliding plate breaking due to vibration and impact on the side wall and the failure of the anti-fall function. Attached Figure Description

[0031] Figure 1 This is an overall schematic diagram of the present invention.

[0032] Figure 2 This is a schematic diagram of the mounting plate of the present invention.

[0033] Figure 3 This is a cross-sectional view of the mounting plate of the present invention.

[0034] Figure 4 This is a cross-sectional view of the fixing rod of the present invention.

[0035] Figure 5This is a schematic diagram of the sliding plate of the present invention.

[0036] Figure 6 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0037] Figure 7 This is a schematic diagram of the locking plate of the present invention.

[0038] Figure 8 This is a schematic diagram of the cylindrical gear of the present invention.

[0039] Figure 9 This is a schematic diagram of the rotating rod of the present invention.

[0040] Figure 10 This is a schematic diagram of the slide groove of the present invention.

[0041] Figure 11 This is a schematic diagram of the slide groove of the present invention.

[0042] In the diagram: 1. Bridge-building machine body; 11. Mounting plate; 111. Mounting groove; 12. Vibrator; 2. Fall protection assembly; 21. Fixing rod; 211. Slide 1; 212. Slide 2; 213. Slide 3; 214. Slide 4; 215. Slide 5; 22. Sliding plate; 221. Slide 6; 23. Limiting plate; 24. Spring 1; 25. Locking mechanism; 251. Locking plate; 252. Trigger block 253. Spring II; 254. Limiting block; 3. Locking assembly; 31. Spur gear; 32. Ratchet; 33. Rotating rod I; 34. Ratchet plate; 35. Coil spring; 36. Toothed plate; 4. Switching assembly; 41. Switching mechanism; 411. Sliding block; 4111. Limiting groove; 412. Connecting rod; 413. Rotating rod III; 42. Limiting mechanism; 421. Limiting rod; 422. Spring buckle. Detailed Implementation

[0043] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, a continuous beam bridge building machine includes a bridge building machine body 1 and multiple vibrators 12. Multiple mounting plates 11 are fixedly connected to the lower part of the bridge building machine body 1, and the vibrators 12 are fixedly connected to the mounting plates 11. Anti-fall components 2 are provided on both sides of the vibrators 12.

[0045] Fall protection component 2 is used to prevent vibrator 12 from falling;

[0046] The fall arrestor 2 includes two fixed rods 21, which are fixedly connected to both sides of the vibrator 12. Two sliding plates 22 are slidably connected inside the fixed rods 21, and two limiting plates 23 are fixedly connected inside the fixed rods 21. The limiting plates 23 are slidably connected to the sliding plates 22. A spring 24 is fixedly connected to one side of the limiting plate 23. The end of the spring 24 away from the limiting plate 23 is fixedly connected to the sliding plate 22. The fixed rods 21 are slidably connected to the mounting plate 11, and the sliding plates 22 and the mounting plate 11 form a limiting and abutting fit.

[0047] It should be noted that, as Figure 1 , Figure 2 and Figure 3 As shown, the bridge-building machine body 1 also includes at least an inner template and an outer template. The mounting plate 11 is set on the surface of the inner template and the outer template, and the mounting plate 11 is fixedly connected to the inner template and the outer template. The bridge-building machine body 1 is existing technology and will not be described in detail. The bridge-building machine body 1 can realize the movement of the whole machine across the span, the hoisting and precise positioning of precast beam segments, and provide a stable working platform for the entire process of continuous beam construction. The vibrator 12 is existing technology. The vibrator 12 can make the poured concrete mixture compacted through high-frequency vibration. This is existing technology and will not be described in detail.

[0048] It should be noted that, as Figure 3 Figure 4 As shown, the mounting plate 11 has two mounting grooves 111 inside. One end of the fixing rod 21 is located inside the mounting groove 111 and forms a sliding guide fit with the mounting groove 111. That is, the fixing rod 21 is slidably connected to the mounting plate 11 through the mounting groove 111.

[0049] It should be noted that, as Figure 4 , Figure 7 and Figure 11 As shown, the fixed rod 21 has two sliding grooves 211 inside. The groove direction of the sliding groove 211 is consistent with the width direction of the fixed rod 21. The length of the sliding groove 211 is consistent with the length of the sliding plate 22. The sliding groove 211 passes through the fixed rod 21. The sliding plate 22 is located inside the sliding groove 211 and forms a sliding guide engagement with the sliding groove 211. That is, the sliding plate 22 is slidably connected to the fixed rod 21 through the sliding groove 211.

[0050] It should be noted that, as Figure 4 and Figure 6As shown, a groove 221 is provided on one side of the sliding plate 22. The groove direction of the groove 221 is consistent with the length direction of the sliding plate 22. The limiting plate 23 is located inside the groove 221 and forms a sliding guide engagement with the groove 221. That is, the limiting plate 23 is slidably connected to the sliding plate 22 through the groove 221. The end of the limiting plate 23 facing away from the sliding plate 22 is fixedly connected to the inner wall of the fixing rod 21. The spring 24 is located inside the groove 221.

[0051] It should be noted that, as Figure 8 As shown, the sliding plate 22 has a first extended state and a retracted state. The retracted state is the initial state. When the sliding plate 22 is in the retracted state, the sliding plate 22 is located in the first slide groove 211, the limiting plate 23 is located in the middle of the sixth slide groove 221, and the spring 24 is in the compressed state. When the sliding plate 22 is in the first extended state, one end of the sliding plate 22 is located in the first slide groove 211, and the other end extends out of the fixing rod 21. The sliding plate 22 is fully extended, the limiting plate 23 is located in the sixth slide groove 221 on the side away from the spring 24, and the spring 24 is in the natural state.

[0052] Specifically, such as Figure 4 , Figure 6 and Figure 7 As shown, a locking mechanism 25 is provided inside the fixed rod 21. The locking mechanism 25 is used to lock the position of the sliding plate 22. The locking mechanism 25 includes a locking plate 251, which is slidably connected to the fixed rod 21. A trigger block 252 is fixedly connected to the lower part of the locking plate 251. A plurality of springs 253 are fixedly connected to the lower part of the locking plate 251. One end of the springs 253 away from the locking plate 251 is fixedly connected to the fixed rod 21. A limit block 254 is fixedly connected to the upper part of the sliding plate 22. The locking plate 251 abuts against one side of the limit block 254.

[0053] It should be noted that, as Figure 6 , Figure 7 and Figure 8 As shown, a sliding groove 214 is provided inside the fixed rod 21. The groove direction of the sliding groove 214 is consistent with the radial direction of the fixed rod 21. The locking plate 251 is located inside the sliding groove 214 and forms a sliding guide engagement with the sliding groove 214. That is, the locking plate 251 is slidably connected to the fixed rod 21 through the sliding groove 214. Both the locking plate 251 and the sliding groove 214 are cross-shaped. One end of the trigger block 252 is located inside the sliding groove 214, and the other end of the trigger block 252 passes through the fixed rod 21.

[0054] Specifically, such as Figure 8As shown, the fixed rod 21 has two sliding grooves 212 inside. The groove direction of the second sliding groove 212 is the same as that of the first sliding groove 211. The limiting block 254 is located inside the second sliding groove 212 and forms a sliding guide engagement with the second sliding groove 212. That is, the limiting block 254 is slidably connected to the fixed rod 21 through the second sliding groove 212. The second sliding groove 212 and the first sliding groove 211 are connected. That is, the sliding plate 22 can carry the limiting block 254 to slide inside the fourth sliding groove 214 while sliding.

[0055] It should be noted that, as Figure 8 As shown, two slides 1 211 are connected to slide 4 214 respectively, and their groove directions are perpendicular to each other. Two slides 2 212 are connected to slide 4 214 respectively, and their groove directions are perpendicular to each other. The groove directions of slide 1 211 and slide 2 212 are in the same direction.

[0056] Specifically, such as Figure 7 As shown, the trigger block 252 has an extended state and a retracted state. The extended state is the initial state. When the trigger block 252 is in the extended state, the end of the trigger block 252 away from the locking plate 251 extends out of the fixing rod 21, the limiting block 254 abuts against the side of the trigger block 252 away from the limiting plate 23, the locking plate 251 is located in the middle of the slide groove 214, the spring 253 is in the natural state, and the sliding plate 22 is in the retracted state. When the trigger block 252 is in the retracted state, one end of the trigger block 252 is located inside the slide groove 214, the entire trigger block 252 is located inside the fixing rod 21, the locking plate 251 is located at the upper part of the slide groove 214, the spring 253 is in the stretched state, and the sliding plate 22 is in the first unfolded state.

[0057] When installing the vibrator 12, first insert the fixing rod 21 into the mounting groove 111. When the vibrator 12 is against the surface of the mounting plate 11, the trigger block 252 is pressed by the mounting groove 111 and moves from the extended state to the retracted state. The spring 24, being in a compressed state, causes the sliding plate 22 to tend to move. At this time, the limiting block 254 loses the limiting of the locking plate 251. Driven by the spring 24, the sliding plate 22 switches from the retracted state to the first extended state. At this time, the sliding plate 22 is fully extended. The fixing rod 21 and the two sliding plates 22 form a T-shaped structure, which can be locked inside the mounting groove 111 to prevent the fixing rod 21 from completely slipping out of the mounting groove 111. Then, bolts are used to fix the vibrator 12 and the mounting plate 11. When the bolts connecting the vibrator 12 and the mounting plate 11 loosen under the influence of continuous vibration, the vibrator 12 will tilt and shift under the influence of vibration and gravity. At this time, the distance between the lower end of the fixed rod 21 and the bottom of the mounting groove 111 will increase due to the displacement of the vibrator 12. At this time, the locking mechanism 25 loses the pressure of the mounting groove 111, causing the trigger block 252 to switch from the extended state to the retracted state. At this time, the locking plate 251 returns to its original position and rests on the upper part of the sliding plate 22. That is, at this time, the locking plate 251 is located on the side of the limiting block 254 near the trigger block 252. The locking plate 251 can prevent the limiting block 254 from sliding back. At this time, the vibrator 12 can be restricted to one side of the mounting plate 11 by the T-shaped anti-fall structure formed by the fixed rod 21 and the sliding plate 22, preventing it from falling and swinging. This can achieve the function of preventing the vibrator 12 from falling from a height, and can also prevent the vibrator 12 from swinging in the air and hitting the mold at the bottom of the bridge building machine body 1 after the fixing bolt falls off, causing the weak part of the mold at the bottom of the bridge building machine body 1 to be deformed by impact, or even the vibrator 12 to be damaged during the impact.

[0058] In the above embodiments, such as Figure 6 and Figure 8As shown, during the installation of the vibrator 12, since the vibrator 12 is tightly fixed to one side of the mounting plate 11 by bolts, the fixing rod 21 is in contact with the bottom of the mounting groove 111. Due to the compression of the mounting groove 111, the trigger block 252 is pushed to switch from the extended state to the retracted state. At this time, the limit block 254 loses the obstruction of the locking plate 251, which allows the sliding plate 22 to move freely. The spring 24 rebounds, causing the sliding plate 22 to switch from the retracted state to the first extended state. At this time, the sliding plate 22 can be locked inside the mounting groove 111. However, since the vibrator 12 is usually fixed during use... The bolts of vibrator 12 may loosen due to vibration. That is, even after vibrator 12 loosens and detaches, it may still be operational. However, because the sliding plate 22 is stuck inside the mounting groove 111, vibrator 12 is suspended on one side of the mounting plate 11 by the fixing rod 21. The vibration generated by vibrator 12 will cause the fixing rod 21 and sliding plate 22 to vibrate continuously inside the mounting groove 111. The resulting displacement is multi-directional. This complex and frequent multi-directional displacement will cause the sliding plate 22 to continuously impact the side wall of the mounting groove 111. Over time, this will lead to the sliding plate 22... The impact and breakage of the mounting plate 11 can also damage the vibrator 12, thereby rendering the anti-fall function of the sliding plate 22 and the fixed rod 21 ineffective. This causes the fixed rod 21 to detach from the interior of the mounting plate 11, resulting in the vibrator 12 falling from a height. Therefore, to solve this technical problem, in this embodiment, the continuous beam bridge-building machine also includes a locking assembly 3. The locking assembly 3 is located inside the bridge-building machine body 1 and includes two spur gears 31, both of which are rotatably connected to the interior of the fixed rod 21. A toothed plate 36 is fixedly connected to the upper part of the sliding plate 22, and the toothed plate 36 and the spur gears are also connected to it. 31 mesh with each other. A ratchet 32 ​​is fixedly connected to one side of the spur gear 31. Two rotating rods 33 are rotatably connected inside the fixed rod 21. A ratchet plate 34 is fixedly connected to one end of the rotating rod 33. A coil spring 35 is sleeved on the outer wall of the rotating rod 33. One end of the coil spring 35 is fixedly connected to the outer wall of the rotating rod 33, and the other end is fixedly connected to the fixed rod 21. The end of the ratchet plate 34 away from the rotating rod 33 abuts against the ratchet 32. The ratchet plate 34 and the ratchet 32 ​​form a limiting contact fit. The cross section of the mounting groove 111 is trapezoidal. The sliding plate 22 and the side of the mounting groove 111 form a wedge fit.

[0059] It should be noted that, as Figure 6 and Figure 8 As shown, the length direction of the toothed plate 36 is consistent with the length direction of the sliding plate 22, that is, the toothed plate 36 is arranged parallel to the length direction of the sliding plate 22. The length of the toothed plate 36 is less than the length of the sliding plate 22. The axis of the coil spring 35 is collinear with the axis of the rotating rod 33. The axis of the ratchet 32 ​​is collinear with the axis of the spur gear 31. The axis of the rotating rod 33 is parallel to the axis of the spur gear 31.

[0060] Specifically, such as Figure 3 and Figure 4 As shown, the cross-section of the mounting groove 111 is trapezoidal, and the side of the sliding plate 22 near the mounting groove 111 is an inclined surface that matches the mounting groove 111. The length of the sliding plate 22 is greater than half the length of the mounting groove 111.

[0061] It should be noted that, as Figure 8 and Figure 9 As shown, the ratchet 32 ​​and ratchet plate 34 are prior art. The ratchet 32 ​​and ratchet plate 34 constitute a one-way mechanism. This one-way mechanism is used to limit the one-way rotation of the spur gear 31 and to prevent the spur gear 31 from reversing. In this embodiment, as shown... Figure 8 As shown, the ratchet 32 ​​and ratchet plate 34 work together to enable the spur gear 31 to rotate only counterclockwise and not clockwise. The coil spring 35 is used to provide rotational power to the rotating rod 33, that is, to ensure that when the rotating rod 33 rotates, it can push the ratchet plate 34 to press against the surface of the ratchet 32, preventing the ratchet 32 ​​and ratchet plate 34 from disengaging and causing the spur gear 31 to lose its unidirectional rotation function.

[0062] Specifically, as shown in Figure 8, the sliding plate 22 has a second extended state. When the sliding plate 22 is in the second extended state, the spring 24 is in a compressed state, the limiting plate 23 is located in the middle of the slide groove 221, the sliding plate 22 partially extends out of the slide groove 221, the spur gear 31 meshes with the toothed plate 36, the lower end of the ratchet plate 34 meshes with the outer wall of the ratchet gear 32, and the coil spring 35 is in a taut state.

[0063] When the vibrator 12 is bolted to the mounting plate 11, the trigger block 252 is pressed by the mounting groove 111 and switches from the extended state to the retracted state. At this time, the limit block 254 loses the obstruction of the locking plate 251 and has a tendency to move. At this time, the spring 24 rebounds and causes the sliding plate 22 to switch from the retracted state to the second extended state. At this time, the spring 24 rebounds and pushes the sliding plate 22 to move closer to the side wall of the mounting groove 111. The toothed plate 36 drives the spur gear 31 to rotate counterclockwise. The ratchet plate 34 performs engagement and disengagement movements on the surface of the ratchet gear 32 through the elasticity of the coil spring 35. At this time, the spur gear 31 cannot rotate clockwise. After the sliding plate 22 abuts against the side wall of the mounting groove 111, it stops moving. The state of the spring 24 is fixed and maintained. At this time, the two partially extended sliding plates 22 and the fixing rod 21 also form a T-shaped anti-detachment structure. When the multiple bolts connecting the vibrator 12 are loosened by vibration, relative displacement occurs between the vibrator 12 and the mounting plate 11. At this time, the position between the fixing rod 21 and the mounting plate 11 also changes. Due to the change in the position of the fixing rod 21 inside the mounting groove 111, the distance between the mounting groove 111 and the end face of the sliding plate 22 changes. Due to the ratchet 32 ​​and the ratchet plate 3 The unidirectional limiting effect of the 4-axis prevents the sliding plate 22 from sliding in the opposite direction. The distance between the sliding plate 22 and the mounting groove 111 increases as the fixing rod 21 moves until the sliding plate 22 abuts against the side wall of the mounting groove 111. Since the mounting groove 111 is trapezoidal, the length of the sliding plate 22 is constantly extending. During the movement of the fixing rod 21, the sliding plate 22 can extend and abut against the side wall of the mounting groove 111 multiple times, and the process is irreversible. This prevents the vibrator 12 from detaching and hanging on one side of the mounting plate 11, and the sliding plate 22 from being damaged by the impact and hitting the side wall of the mounting groove 111. The cracking causes the sliding plate 22 and the fixing rod 21 to lose their anti-fall function, preventing the vibrator 12 from falling from a height. Furthermore, by utilizing the wedge-shaped fit between the sliding plate 22 and the mounting groove 111, as the sliding plate 22 extends, the gap between the sliding plate 22 and the mounting groove 111 is reduced, causing the sliding plate 22 to be stuck in the mounting groove 111 and unable to move within it. In other words, even if the vibrator 12 is in working condition after being detached, the vibration generated by the vibrator 12 will not cause the sliding plate 22 to move within the mounting groove 111, thus preventing the sliding plate 22 from colliding with the inner wall of the mounting plate 11.

[0064] In the above embodiments, such as Figure 7 , Figure 10 and Figure 11As shown, workers notice that after the vibrator 12 becomes loose, it usually needs to be removed or reinstalled. Due to the unidirectional rotational engagement of the sliding plate 22 and the cylindrical gear 31, the sliding plate 22 can only move in one direction, that is, the sliding plate 22 can only extend outward. In order to remove or reinstall the vibrator 12, it is necessary to release the unidirectional movement of the sliding plate 22 or destroy the structure of the sliding plate 22 so that the sliding plate 22 can not obstruct the reinstallation and removal of the vibrator 12. In order to ensure that there is no loosening between the fixing rod 21 and the vibrator 12, the fixing rod 21 is usually welded to one side of the vibrator 12. At this time, destroying the structure of the sliding plate 22 will cause the overall structure of the fixing rod 21 to lose its function. Even if the vibrator 12 is reinstalled on the mounting plate 11, the vibrator 12 will directly detach from the surface of the mounting plate 11 after the bolts fixing the vibrator 12 loosen. Therefore, in order to solve this technical problem, in this embodiment, the continuous beam bridge building machine also includes a switching component 4, which is used to release the unidirectional rotation restriction of the locking component 3.

[0065] The switching assembly 4 includes a switching mechanism 41, which includes a sliding block 411. The sliding block 411 is slidably connected to the upper part of the fixed rod 21. The lower end of the sliding block 411 is rotatably connected to two connecting rods 412. The end of the connecting rod 412 facing away from the sliding block 411 is rotatably connected to a rotating rod 33. The end of the rotating rod 33 facing away from the connecting rod 412 is fixedly connected to the rotating rod 33.

[0066] Specifically, such as Figure 11 As shown, a sliding groove 213 is provided on the upper part of the fixed rod 21. The groove direction of the sliding groove 213 is consistent with the radial direction of the fixed rod 21. The sliding block 411 is located inside the sliding groove 213 and forms a sliding guide engagement with the sliding groove 213. That is, the sliding block 411 is slidably connected to the fixed rod 21 through the sliding groove 213.

[0067] It should be noted that, as Figure 3 and Figure 11 As shown, the mounting groove 111 is a pentagonal rhombus, and the side of the locking plate 251 opposite to the limiting block 254 is an inclined surface;

[0068] Specifically, the switching component 4 also includes a limiting mechanism 42, which includes a limiting rod 421. The limiting rod 421 is slidably connected to the upper part of the fixed rod 21. One end of the limiting rod 421 slides inside the sliding block 411. A spring buckle 422 is provided inside the fixed rod 21 to limit the sliding of the limiting rod 421.

[0069] It should be noted that, as Figure 10 and Figure 11As shown, a sliding groove 215 is provided on the upper part of the fixed rod 21. The groove direction of the sliding groove 215 is perpendicular to the radial direction of the fixed rod 21. The limiting rod 421 is located inside the sliding groove 215 and forms a sliding guide engagement with the sliding groove 215. That is, the limiting rod 421 is slidably connected to the fixed rod 21 through the sliding groove 215. The sliding groove 215 and the sliding groove 213 are connected. A limiting groove is provided on the inner wall of the fixed rod 21. The spring buckle 422 is located in the limiting groove. The spring buckle 422 includes a spring and a locking block. One end of the spring is fixedly connected to the groove wall of the limiting groove, and the other end is fixedly connected to the locking block. One end of the locking block extends out from the opening of the limiting groove, and the extended end is a semi-circular structure. One end of the semi-circular structure is located inside the sliding groove 215. The spring buckle 422 provided by this structure can provide a certain resistance to the fixed rod 21 during its movement to prevent the fixed rod 21 from sliding freely in the sliding groove 215.

[0070] Specifically, such as Figure 10 and Figure 11 As shown, a limiting groove 4111 is provided on the side of the sliding block 411 near the limiting rod 421. One end of the limiting rod 421 is located inside the limiting groove 4111. The limiting groove 4111 is in the shape of two steps. The two steps of the limiting groove 4111 are the first step and the second step from bottom to top. The initial position of the limiting rod 421 is engaged in the first step. The coil spring 35 is in a taut state. The ratchet plate 34 abuts against the ratchet gear 32.

[0071] It should be noted that, as Figure 10 and Figure 11 As shown, the spring clip 422 is existing technology and is fixed to the upper part of the fixing rod 21. It can achieve the effect of temporary positioning of the limiting rod 421 by using the positioning groove pre-opened on one side of the limiting rod 421. That is, pushing the limiting rod 421 to slide changes the length of the limiting rod 421 inside the limiting groove 4111. This allows one end of the limiting rod 421 to abut against different positions in the limiting groove 4111. At this time, the sliding block 411 can slide down to different depths according to the abutment at different positions. When the sliding block 411 slides against the limiting rod 421, the sliding block 411 cannot slide. At this time, the rotation angle of the rotating rod 33 can be changed by the different depths of the sliding block 411, thereby realizing the function of changing the meshing and locking of the ratchet 32 ​​and the ratchet plate 34.

[0072] In this embodiment, as Figure 9 As shown, one set of ratchet gears 32 and ratchet plates 34 are used to restrict the clockwise unidirectional rotation of the spur gear 31. At this time, another set of ratchet gears 32 and ratchet plates 34 can be set on the other side of the spur gear 31 to restrict the counterclockwise unidirectional rotation of the spur gear 31.

[0073] After inspecting the vibrator 12, the worker needs to reinstall it. At this time, a force needs to be applied to the vibrator 12 to allow it to move towards the mounting plate 11. Then, the limiting rod 421 is pulled outwards a certain distance, causing the end of the limiting rod 421 near the sliding block 411 to move. At this point, the end of the limiting rod 421 near the sliding block 411 can be engaged in the second stage of the limiting groove 4111. The sliding block 411 is then pushed downwards, allowing it to move downwards. As the sliding block 411 moves downwards, it can push the rotating rod 412 via the connecting rod 412. Rotating counterclockwise, the rotating rod 413 pushes the rotating rod 33 to rotate, causing the ratchet plate 34 that restricts the clockwise rotation of the spur gear 31 to disengage from one of the ratchet gears 32. Meanwhile, the ratchet plate 34 that restricts the counterclockwise rotation of the spur gear 31 rotates and engages with the other ratchet gear 32. At this point, the restriction on the clockwise rotation of the spur gear 31 is lifted, and the spur gear 31 can rotate clockwise. Since the worker has been continuously applying force to the vibrator 12 towards the mounting plate 11, once the clockwise rotation of the sliding plate 22 is lifted, the sliding plate... When plate 22 can slide in the reverse direction, vibrator 12 can be pushed by the worker to fit against one side of mounting plate 11. During this process, fixing rod 21 extends into the interior of mounting groove 111. At this time, trigger block 252 is squeezed by mounting groove 111 and switches from the extended state to the retracted state. The distance between the lower end of fixing rod 21 and the inclined surface decreases. The inclined surfaces on both sides of mounting groove 111 push sliding plate 22 to slide towards fixing rod 21. When vibrator 12 fits against one side of mounting plate 11, bolts can be used to fix vibrator 12 to mounting plate 11. The sliding block 411 can be released, causing the coil spring 35 to rebound and push the sliding block 411 upward to return to its original position. The limiting rod 421 is then pushed back into the lower part of the first step of the limiting groove 4111, thereby locking the state of the sliding block 411 again. During this process, the ratchet plate 34, which restricts the clockwise rotation of the spur gear 31, rotates and engages the ratchet gear 32. The ratchet plate 34, which restricts the counterclockwise rotation of the spur gear 31, rotates and disengages from the ratchet gear 32. At this time, the restriction on the clockwise rotation of the spur gear 31 takes effect, and the spur gear 31 can only rotate counterclockwise.

[0074] When the current vibrator 12 needs to be removed and replaced, when one end of the fixing rod 21 abuts against the inside of the mounting groove 111, the distance between the lower end of the fixing rod 21 and the inclined surface decreases. The inclined surfaces on both sides of the mounting groove 111 push the sliding plate 22 to slide towards the fixing rod 21. At this time, the sliding plate 22 only needs to ensure that the vibrator 12 can fit against one side of the mounting plate 11, and it is not necessary for the sliding plate 22 to be completely retracted into the inside of the fixing rod 21. Since removing the vibrator 12 requires the sliding plate 22 to be completely retracted, first push the vibrator 12 downward to make the sliding plate 22 partially retract into the inside of the fixing rod 21, and then pull the vibrator 12 upward to drive the two fixing rods 21 to move upward. At this time, the sliding plate 22 is moving upward. While moving, it abuts against the upper part of the mounting groove 111. When the sliding plate 22 moves, the upper part of the mounting groove 111 will push the sliding plate 22 to slide completely into the interior of the sliding groove 211 through the wedge-shaped engagement. The fixing rod 21 will disengage from the interior of the mounting groove 111, and then the vibrator 12 will be removed. Since the sliding plate 22 is completely retracted into the interior of the fixing rod 21, when the fixing rod 21 leaves the interior of the mounting groove 111, the trigger block 252 will lose its compression and switch from the retracted state to the extended state. The locking plate 251 will abut against one side of the limiting block 254 again. Thus, the function of reinstalling and replacing the vibrator 12 can be realized without damaging the structural integrity of the sliding plate 22.

[0075] When installing the vibrator 12, the fixing rod 21 is inserted into the mounting plate 11, and the vibrator 12 is attached to the mounting plate 11. At this time, the trigger block 252 is squeezed by the mounting groove 111, switching from the extended state to the retracted state. The spring 24 rebounds, pushing the sliding plate 22 from the retracted state to the first extended state. The locking plate 251 of the locking mechanism 25 releases the limit block 254. The sliding plate 22 and the two fixing rods 21 form a T-shaped structure, which is engaged with the mounting groove 111. At this time, the vibrator 12 can be installed and fixed by fixing it with bolts. When the bolts of the fixed vibrator 12 loosen, the vibrator 12 will be displaced, causing the fixing rod 21 to change its position in the mounting groove 111. The trigger block 252 returns to its original position and extends, and the locking plate 251 releases the limit block 254. 51 re-engages with the limiting block 254 to prevent the sliding plate 22 from returning to its original position. The toothed plate 36 drives the spur gear 31 to rotate. The ratchet gear 32 cooperates with the ratchet plate 34 to restrict the spur gear 31 from rotating clockwise, so that the sliding plate 22 can only move in one direction, extending outward from the mounting groove 111 and always abutting against the side wall of the trapezoidal mounting groove 111. This prevents the sliding plate 22 from being damaged by vibration impacting the side wall of the mounting groove 111, thus maintaining the T-shaped anti-fall structure between the sliding plate 22 and the two fixed rods 21. When it is necessary to reinstall the vibrator 12, pull the limiting rod 421 to make it engage with the second step of the limiting groove 4111, and push the sliding block 411 downward. The sliding block 411 drives the rotating rod 3 413 to rotate through the connecting rod 412. The rotating rod 33 is driven to rotate, causing the ratchet plate 34 to disengage from the ratchet gear 32, releasing the one-way rotation restriction of the spur gear 31. This pushes the vibrator 12 to adhere to the surface of the mounting plate 11. The inclined surface of the mounting groove 111 pushes the sliding plate 22 back to the fixed rod 21. The vibrator 12 is then fixed with bolts. Subsequently, the sliding block 411 is released to reset it, pushing the limiting rod 421 to engage with the first step of the limiting groove 4111. The ratchet plate 34 re-engages with the ratchet gear 32, restoring the one-way rotation restriction of the locking assembly 3. When it is necessary to remove the vibrator 12, while releasing the one-way rotation restriction of the locking assembly 3, the vibrator 12 is pushed downwards. The vibrator 12 drives the two fixed rods 21 to move downwards. Through the wedge-shaped engagement between the sliding plate 22 and the mounting groove 111, it is possible to... The sliding plate 22 is pushed partially back into the fixed rod 21, and then the vibrator 12 is pulled upward. The vibrator 12 drives the two fixed rods 21 to move upward. Similarly, through the wedge-shaped engagement between the sliding plate 22 and the mounting groove 111, the sliding plate 22 can be fully pushed back into the fixed rod 21. During the process of the sliding plate 22 retracting into the fixed rod 21, the limiting block 254, through the wedge-shaped engagement with the inclined surface of the locking plate 251, can push the locking plate 251 upward, causing the trigger block 252 to switch from the extended state to the retracted state. When the limiting block 254 moves to the other side of the locking plate 251, the trigger block 252 switches from the retracted state to the extended state. This completes the structural reset of the fall arrestor assembly 2 for reinstallation and use.

[0076] A construction method for a continuous beam bridge-building machine includes the following steps:

[0077] Step 1: Construction preparation, including site surveying and assembling the continuous beam bridge-building machine;

[0078] Step 2: Position the continuous beam bridge-building machine, start the traveling mechanism to move the entire machine to the designed position of the span to be constructed, and lock the support system to ensure stable operation;

[0079] Step 3: Segment hoisting and alignment. The precast beam segments are hoisted to the alignment area using a matching lifting device. The segment axis, elevation, and joint gap are then precisely adjusted to the design parameters using a fine-tuning system.

[0080] Step 4: Segment splicing. Apply epoxy adhesive to the mating surfaces, splice adjacent segments in the preset order, and apply temporary prestress in time to ensure that the joints are tightly fitted and the segments form a temporary stable whole.

[0081] Step 5: Prestressed construction. After the adhesive reaches the design strength, the longitudinal, transverse and vertical prestressing tendons are threaded, tensioned and anchored in batches according to the design sequence and control force, and the prestressing ducts are grouted simultaneously.

[0082] Step Six: System Conversion and Forward Movement. Remove temporary supports, convert the beam's load-bearing system into a permanent continuous beam system, release the continuous beam bridge-building machine from lock, and move it forward to the next span to be constructed.

[0083] Step 7: Ancillary construction and acceptance, including the construction of end anchoring of the beam, bridge deck paving, and crash barriers, while simultaneously conducting beam alignment and stress testing. The main construction is completed after the beam passes the acceptance test.

[0084] It should be noted that before construction, the bridge site measurement and layout, the construction of the bridge piers and temporary support system should be completed first. The main structure of the continuous beam bridge building machine should be transported to the bridge abutment or the area where the beam segment has been completed. The whole machine should be assembled, and the traveling mechanism and lifting system should be debugged. At the same time, the standardized prefabrication, curing and transportation preparation of the precast beam segments should be completed in the factory.

[0085] Then, the continuous beam bridge-building machine's traveling mechanism is activated to move the entire machine to the designed position of the span to be constructed. The support system is locked to ensure the stability of the entire machine's operation. The precast beam segments are lifted from the transport vehicle to the alignment area using the continuous beam bridge-building machine's supporting lifting device. The fine adjustment system is used to precisely adjust the axis, elevation, and joint gap of the segments to make them conform to the design parameters.

[0086] After the segments are aligned, apply a special epoxy adhesive evenly to the mating surfaces, and splice adjacent segments in the preset order. Apply temporary prestress in time after splicing to ensure that the joints are tightly fitted and that the segments form a temporary stable whole.

[0087] After the single-span or multi-span segments are assembled and the adhesive reaches the design strength, the longitudinal, transverse and vertical prestressing tendons are threaded, tensioned and anchored in batches according to the design tensioning sequence and control force. At the same time, the prestressing duct grouting construction is carried out to ensure the reliability and durability of the prestressing system.

[0088] After the prestressing construction is completed, the temporary support structure is removed, the beam stress system is converted into a permanent continuous beam stress system, the continuous beam bridge building machine is unlocked and the walking system is started, the whole machine is moved forward to the next span to be constructed, and the segment assembly, prestressing tensioning and other processes are repeated.

[0089] After the assembly and prestressing of all continuous beam segments of the bridge are completed, the construction of ancillary structures such as beam end anchoring, bridge deck paving, and crash barriers will be carried out. At the same time, the overall alignment and stress of the beam will be tested. After the acceptance is qualified, the main construction of the continuous beam bridge will be completed.

[0090] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A continuous beam bridge-building machine, comprising a bridge-building machine body (1) and a plurality of vibrators (12), characterized in that, Multiple mounting plates (11) are fixedly connected to the lower part of the bridge building machine body (1). The vibrator (12) is fixedly connected to the mounting plate (11). Anti-fall components (2) are provided on both sides of the vibrator (12). The anti-fall component (2) is used to prevent the vibrator (12) from falling; The fall arrestor assembly (2) includes two fixed rods (21), which are fixedly connected to both sides of the vibrator (12). Two sliding plates (22) are slidably connected inside the fixed rods (21), and two limiting plates (23) are fixedly connected inside the fixed rods (21). The limiting plates (23) are slidably connected to the sliding plates (22). A spring (24) is fixedly connected to one side of the limiting plate (23). The end of the spring (24) away from the limiting plate (23) is fixedly connected to the sliding plate (22). The fixed rods (21) are slidably connected to the mounting plate (11), and the sliding plates (22) and the mounting plate (11) form a limiting and resisting fit. The mounting plate (11) has two mounting slots (111) inside. One end of the fixing rod (21) is located inside the mounting slot (111) and forms a sliding guide fit with the mounting slot (111). The fixed rod (21) has two sliding grooves (211) inside. The groove direction of the sliding groove (211) is consistent with the width direction of the fixed rod (21). The length of the sliding groove (211) is consistent with the length of the sliding plate (22). The sliding groove (211) passes through the fixed rod (21). The sliding plate (22) is located inside the sliding groove (211) and forms a sliding guide fit with the sliding groove (211). A sliding groove six (221) is provided on one side of the sliding plate (22). The groove direction of the sliding groove six (221) is consistent with the length direction of the sliding plate (22). The limiting plate (23) is located inside the sliding groove six (221) and forms a sliding guide fit with the sliding groove six (221). The end of the limiting plate (23) away from the sliding plate (22) is fixedly connected to the sliding groove one (211). The spring one (24) is located inside the sliding groove six (221). The fixed rod (21) is provided with a locking mechanism (25) inside. The locking mechanism (25) is used to lock the position of the sliding plate (22). The locking mechanism (25) includes a locking plate (251), which is slidably connected to the fixed rod (21). A trigger block (252) is fixedly connected to the lower part of the locking plate (251). A plurality of springs (253) are fixedly connected to the lower part of the locking plate (251). One end of the springs (253) away from the locking plate (251) is fixedly connected to the fixed rod (21). A limit block (254) is fixedly connected to the upper part of the sliding plate (22). The locking plate (251) abuts against one side of the limit block (254). The fixed rod (21) has a sliding groove (214) inside. The groove direction of the sliding groove (214) is consistent with the radial direction of the fixed rod (21). The locking plate (251) is located inside the sliding groove (214) and forms a sliding guide fit with the sliding groove (214). One end of the trigger block (252) is located inside the sliding groove (214), and the other end of the trigger block (252) passes through the fixed rod (21). The cross-section of the mounting groove (111) is trapezoidal, and the sliding plate (22) and the side of the mounting groove (111) form a wedge fit.

2. The continuous beam bridge-building machine according to claim 1, characterized in that, The fixed rod (21) has two sliding grooves (212) inside. The groove direction of the sliding groove (212) is the same as that of the sliding groove (211). The limiting block (254) is located inside the sliding groove (212) and forms a sliding guide fit with the sliding groove (212). The sliding groove (212) and the sliding groove (211) are connected.

3. A continuous beam bridge-building machine according to claim 2, characterized in that, It also includes a locking component (3), which is located inside the bridge-building machine body (1). The locking component (3) includes two spur gears (31), both of which are rotatably connected inside the fixed rod (21). A toothed plate (36) is fixedly connected to the upper part of the sliding plate (22). The toothed plate (36) and the spur gears (31) mesh with each other. A ratchet gear (32) is fixedly connected to one side of the spur gears (31). Two rotating rods (33) are rotatably connected inside the fixed rod (21). A ratchet plate (34) is fixedly connected to one end of the rotating rod (33). A coil spring (35) is sleeved on the outer wall of the rotating rod (33). One end of the coil spring (35) is fixedly connected to the outer wall of the rotating rod (33), and the other end is fixedly connected to the fixed rod (21). The end of the ratchet plate (34) away from the rotating rod (33) abuts against the ratchet gear (32). The ratchet plate (34) and the ratchet gear (32) form a limiting contact engagement.

4. A continuous beam bridge-building machine according to claim 3, characterized in that, It also includes a switching component (4), which is used to release the unidirectional rotation restriction of the locking component (3); The switching component (4) includes a switching mechanism (41), which includes a sliding block (411). The sliding block (411) is slidably connected to the upper part of the fixed rod (21). The lower end of the sliding block (411) is rotatably connected to two connecting rods (412). The end of the connecting rod (412) away from the sliding block (411) is rotatably connected to a rotating rod three (413). The end of the rotating rod three (413) away from the connecting rod (412) is fixedly connected to the rotating rod one (33).

5. A continuous beam bridge-building machine according to claim 4, characterized in that, The switching assembly (4) also includes a limiting mechanism (42), which includes a limiting rod (421). The limiting rod (421) is slidably connected to the upper part of the fixed rod (21). One end of the limiting rod (421) slides inside the sliding block (411). A spring buckle (422) is provided inside the fixed rod (21). The spring buckle (422) is used to limit the sliding of the limiting rod (421).

6. A continuous beam bridge-building machine according to claim 5, characterized in that, The upper part of the fixed rod (21) is provided with a sliding groove five (215) and a sliding groove three (213). The groove direction of the sliding groove five (215) is perpendicular to the radial direction of the fixed rod (21). The limiting rod (421) is located inside the sliding groove five (215) and forms a sliding guide fit with the sliding groove five (215). The groove direction of the sliding groove three (213) is consistent with the radial direction of the fixed rod (21). The sliding block (411) is located inside the sliding groove three (213) and forms a sliding guide fit with the sliding groove three (213). Slide five (215) and slide three (213) are connected.

7. A construction method for a continuous beam bridge-building machine as described in claim 6, characterized in that, Includes the following steps: Step 1: Construction preparation, including site surveying and assembling the continuous beam bridge-building machine; Step 2: Position the continuous beam bridge-building machine, start the traveling mechanism to move the entire machine to the designed position of the span to be constructed, and lock the support system to ensure stable operation; Step 3: Segment hoisting and alignment. The precast beam segments are hoisted to the alignment area using a matching lifting device. The segment axis, elevation, and joint gap are then precisely adjusted to the design parameters using a fine-tuning system. Step 4: Segment splicing. Apply epoxy adhesive to the mating surfaces, splice adjacent segments in the preset order, and apply temporary prestress in time to ensure that the joints are tightly fitted and the segments form a temporary stable whole. Step 5: Prestressed construction. After the adhesive reaches the design strength, the longitudinal, transverse and vertical prestressing tendons are threaded, tensioned and anchored in batches according to the design sequence and control force, and the prestressing ducts are grouted simultaneously. Step Six: System Conversion and Forward Movement. Remove temporary supports, convert the beam's load-bearing system into a permanent continuous beam system, release the continuous beam bridge-building machine from lock, and move it forward to the next span to be constructed. Step 7: Ancillary construction and acceptance, including the construction of end anchoring of the beam, bridge deck paving, and crash barriers, while simultaneously conducting beam alignment and stress testing. The main construction is completed after the beam passes the acceptance test.

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