Bridge tower section sliding transfer device

Abstract

The utility model provides a bridge tower section sliding transfer device which comprises a steel pipe pile arranged close to the shoreside, at least two track beams are arranged at the upper end of the steel pipe pile, one end of each track beam is used for being close to a transport ship, the other end of each track beam is used for being close to a bridge tower construction area, and sliding brackets capable of sliding are arranged on the track beams. The sliding bracket is provided with a supporting tool frame used for supporting the steel tower section, a continuous jack and a traction cable are arranged at the end, close to a bridge tower construction area, of each track beam, one end of the traction cable is connected with the continuous jack, the other end of the traction cable is used for pulling the supporting tool frame, and the problem that the large-weight steel bridge tower section is long in transfer construction period is solved.

Description

Technical Field

[0001] The utility model relates to the field of steel tower segment sliding construction, in particular to a bridge tower segment sliding transport device. Background Art

[0002] After the 21st century, the main tower height of large-scale dual-use highway and railway bridges has gradually developed to 360m, and the development and use of trillion-ton-meter tower cranes have gradually shown the advantages of steel cable towers, and their applications have become more and more common. Compared with the slow construction speed and long period of conventional concrete cable towers, steel tower construction is more convenient, which can greatly reduce the cumbersome construction process of concrete towers and greatly speed up the project construction period.

[0003] With the rapid development of dual-use bridges for highway and railway, the height and weight of steel towers are increasing, and the structure of steel towers is becoming more and more complex. Transport ships + floating cranes often cannot transport them to the bridge towers in one go. Conventional methods of hoisting and transporting steel tower segments are no longer applicable. There are mainly the following problems:

[0004] First, the maximum segment weight of the steel tower is 401t, which places extremely high demands on the tonnage of the transport ship and floating crane, and the equipment has a high draft requirement. It cannot be lifted to the designated position at the bottom of the bridge tower in one go. Conventional water sliding platforms and sliding equipment cannot meet the sliding requirements of a 400-ton steel tower, and the structural design of the sliding platform is extremely difficult.

[0005] Second, the first section of the steel tower is 6.6 meters high and has an asymmetric structure. The lower 3 meters of the first section of the steel tower is an empty shell structure, and the weight is mainly concentrated in the upper 3.6 meters. The main tower is tilted to the right as a whole, and the weight is mainly concentrated in the upper right. The steel tower structure is extremely complex, which greatly increases the difficulty of sliding. In addition, the bottom 3 meters is an empty shell structure, and the safety and stability of sliding are difficult to ensure.

[0006] Third, the various processes including the start of traction, slippage, mid-way braking, and the stop of traction, as well as the relatively high wind speed on the riverside, pose a great safety risk to the slippage of the 400-ton asymmetric structure. Utility Model Content

[0007] The utility model provides a bridge tower segment sliding transfer device, which solves the problem that heavy steel bridge tower segments cannot be directly hoisted ashore by a floating crane.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is: a bridge tower segment sliding transfer device, including steel pipe piles arranged near the shore, at least two track beams are arranged on the upper end of the steel pipe piles, one end of the track beam is used to approach the transport ship, and the other end of the track beam is used to approach the bridge tower construction area, a slidable sliding bracket is provided on the track beam, and a supporting tooling frame for supporting the steel tower segment is provided on the sliding bracket, a continuous jack is provided on the end of each track beam close to the bridge tower construction area, and a traction cable is also provided, one end of the traction cable is connected to the continuous jack, and the other end of the traction cable is used to pull the supporting tooling frame.

[0009] In the preferred solution, a reaction seat is provided at the end of the track beam, one end of the continuous jack rests on the reaction seat, the traction cable passes through the reaction seat, one end of the traction cable is provided with an anchor, and the anchor is connected to the sliding bracket.

[0010] In the preferred solution, the supporting tooling frame includes an internal supporting frame and an external supporting frame, and the internal supporting frame and the external supporting frame are provided with connected vertical supporting columns and horizontal parallel connecting rods. The upper end of each vertical supporting column is provided with a contoured flange plate, and the contoured flange plate is connected to the outer wall of the steel tower segment.

[0011] In the preferred solution, the supporting tooling frame is provided with a positioning hole, the sliding bracket is provided with a locking device, the positioning hole and the locking device are sleeved for positioning, a conical positioning ring is provided on the inner wall of the positioning hole, and the locking device is provided with an extendable abutment shaft, one end of which abuts against the conical positioning ring.

[0012] In the preferred embodiment, the locking device includes a seat cylinder, a rotatable screw rod is provided in the seat cylinder, a threaded sleeve is sleeved on the screw rod, the sleeve is slidably connected to the inner wall of the seat cylinder, the sleeve is provided with a third conical surface, the seat cylinder is provided with a plurality of guide cylinders along the circumferential direction, the abutment shaft is slidably sleeved with the guide cylinder, the abutment shaft has a first conical surface and a second conical surface at both ends respectively, the second conical surface abuts against the third conical surface, and the first conical surface is used to abut against a conical positioning ring.

[0013] In a preferred solution, the abutting shaft is provided with a shaft shoulder, a return spring is sleeved on the outer side of the abutting shaft, a stop cap is provided at the end of the guide cylinder, and both ends of the return spring abut against the stop cap and the shaft shoulder respectively.

[0014] In the preferred embodiment, a worm wheel is provided at the end of the screw rod, and a first connecting shaft is also provided on the sliding bracket. A plurality of worms are sleeved on the first connecting shaft, and each worm is meshed with each worm wheel. A second connecting shaft perpendicular to the first connecting shaft is also provided, and the second connecting shaft and the first connecting shaft are transmitted through a bevel gear set. A clamping motor is also provided on the sliding bracket, and the clamping motor drives the second connecting shaft to rotate so that each screw rod rotates synchronously.

[0015] In the preferred scheme, at least two guide cone columns and guide sleeves are provided on the sliding bracket, and the guide cone columns and the guide sleeves are slidably connected. The supporting tooling frame is also provided with at least two guide holes, and each guide cone column is inserted into each guide hole. A rotatable screw is provided in the guide sleeve, and the screw is threadedly connected with the guide cone column. A worm gear is provided at the end of the screw, and the worm gear is meshed with the worm. The thread rotation direction of the screw and the lead screw is opposite.

[0016] The beneficial effects of the utility model are as follows: 1) Through the special design of the water sliding platform, the problem of bearing and sliding of the super-large tonnage steel tower is solved, which not only bears the static load of the 400-ton steel tower, but also bears the impact of the dynamic load generated during the sliding process of the 400-ton steel tower;

[0017] 2) Through the analysis of 16 400-ton asymmetric steel tower structures with different cross-sections, by simulating the center of gravity of each segment of the steel tower, the support frame of each segment was designed to ensure the sliding stability of the asymmetric steel tower structure, greatly reducing the risk of tipping of the 400-ton asymmetric steel tower structure;

[0018] 3) Innovative use of continuous jack-traction sliding construction. Conventional sliding construction basically uses ordinary jacks or winches. Compared with conventional construction, uninterrupted intelligent traction can be used, which greatly reduces the risk of tipping of asymmetric structures caused by multiple starts and stops, making the sliding process smoother and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is the layout diagram of the sliding system.

[0021] Figure 2 It is a schematic diagram of continuous jack traction.

[0022] Figure 3 It is the internal and external support structure diagram of the supporting tooling frame.

[0023] Figure 4 It is the steel tower segment division diagram.

[0024] Figure 5 It is the layout diagram of the sliding system.

[0025] Figure 6 This is a diagram showing the support fixture frame and the sliding bracket in a separated state.

[0026] Figure 7 This is a diagram showing the connection status of the supporting tooling frame and the sliding bracket.

[0027] Figure 8 It is a diagram of the locking device and transmission system layout on the sliding bracket.

[0028] Fig. 9 It is a schematic diagram of the clamping state of the locking device.

[0029] Fig.10 This is a diagram of the locking device released state.

[0030] In the figure: sliding bracket 1; sliding seat 101; guide cone column 102; guide sleeve 103; screw 104; locking device 2; abutment shaft 201; first cone surface 202; second cone surface 203; threaded sleeve 204; third cone surface 205; screw 206; seat cylinder 207; guide cylinder 208; stop cap 209; return spring 210; shaft shoulder 211; steel pipe pile 3; steel pipe pile flat joint 301; support fixture 4; internal support frame 401; external support frame 402; vertical Towards support column 403; transverse parallel connecting rod 404; contoured flange plate 405; positioning hole 406; guide hole 407; conical positioning ring 408; contact plate 409; track beam 5; track beam parallel connecting rod 501; continuous jack 6; reaction seat 601; traction cable clamp 602; traction cable 7; anchor 701; steel tower segment 8; rack 9; travel motor 10; worm wheel 11; worm 12; first connecting shaft 13; second connecting shaft 14; bevel gear set 15; clamping motor 16. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] like Figure 1-10 In the invention, a 400-ton asymmetric steel tower segment sliding system includes a steel pipe pile 3 arranged near the shore, at least four track beams 5 are arranged on the upper end of the steel pipe pile 3, one end of the track beam 5 is used to approach the transport ship, and the other end of the track beam 5 is used to approach the bridge tower construction area, at least two slidable sliding brackets 1 are arranged on the track beam 5, and a supporting fixture frame 4 for supporting the steel tower segment 8 is arranged on the sliding bracket 1, a continuous jack 6 is arranged on one end of each track beam 5 near the bridge tower construction area, and a traction cable 7 is also provided, one end of the traction cable 7 is connected to the continuous jack 6, and the other end of the traction cable 7 is used to pull the supporting fixture frame 4, and at least two racks 9 are also provided, the rack 9 is connected to the track beam 5, and each sliding bracket 1 is provided with a travel motor 10, and a gear is arranged at the shaft end of the travel motor 10, and the gear is meshed with the rack 9, and the supporting fixture frame 4 and the sliding bracket 1 are separable.

[0033] The steel pipe piles 3 are connected and fixed by a plurality of steel pipe pile parallel joints 301 , and the track beams 5 are connected and fixed by a plurality of track beam parallel joints 501 .

[0034] A sliding seat 101 is provided at the lower end of the sliding bracket 1 , and the sliding seat 101 is slidably engaged with the track beam 5 .

[0035] The travel motor 10 can drive the sliding bracket 1 to move back and forth along the track beam 5, reciprocating between the transport ship and the bridge tower construction area.

[0036] In the preferred solution, a reaction seat 601 is provided at the end of the track beam 5, one end of the continuous jack 6 rests on the reaction seat 601, the traction cable 7 passes through the reaction seat 601, and an anchor 701 is provided at one end of the traction cable 7, which is connected to the sliding bracket 1.

[0037] The continuous jack 6 includes two traction cable grippers 602 that move alternately. When the first gripper clamps the traction cable 7 and pulls it toward the construction area, the second gripper releases the traction cable 7 and moves away from the construction area to reset. Then, when the second gripper clamps the traction cable 7 and pulls it toward the construction area, the first gripper releases the traction cable 7 and moves away from the construction area to reset. There are at least two continuous jacks 6, which are arranged on two track beams 5 respectively, and pull the left and right sides of the steel tower segment 8 at the same time to prevent deviation.

[0038] In the preferred scheme, the supporting tooling frame 4 includes an internal supporting frame 401 and an external supporting frame 402, and the internal supporting frame 401 and the external supporting frame 402 are provided with connected vertical supporting columns 403 and horizontal parallel connecting rods 404, and the upper end of each vertical supporting column 403 is provided with a contoured flange plate 405, and the contoured flange plate 405 is connected to the outer wall of the steel tower segment 8.

[0039] In the preferred embodiment, the supporting tooling frame 4 is provided with a positioning hole 406, and the sliding bracket 1 is provided with a locking device 2. The positioning hole 406 and the locking device 2 are socketed and positioned, and a conical positioning ring 408 is provided on the inner wall of the positioning hole 406. The locking device 2 is provided with an extendable abutment shaft 201, and one end of the abutment shaft 201 abuts against the conical positioning ring 408.

[0040] The conical positioning ring 408 can be threadedly connected to the inner wall of the positioning hole 406 to facilitate the adjustment of the height position.

[0041] The sliding bracket 1 is welded with transverse and longitudinal connecting beams, and nine locking devices 2 are evenly distributed on the sliding bracket 1. The lower end of the supporting tool frame 4 also adopts a welding frame as a connecting frame for the internal supporting frame 401 and the external supporting frame 402. The welding frame at the lower end of the supporting tool frame 4 is provided with positioning holes 406 with the same number as the locking devices 2. Each positioning hole 406 is provided with one or more conical positioning rings 408 along the height direction, with the conical surface facing upward, and a contact plate 409 is provided at the lower end of each positioning hole 406. The positioning hole 406 and the contact plate 409 are finely processed.

[0042] In the preferred embodiment, the locking device 2 includes a seat cylinder 207, in which a rotatable screw rod 206 is provided, on which a threaded sleeve 204 is sleeved, the sleeve 204 is slidably connected to the inner wall of the seat cylinder 207, the sleeve 204 is provided with a third conical surface 205, the seat cylinder 207 is provided with a plurality of guide cylinders 208 along the circumferential direction, the abutment shaft 201 is slidably sleeved with the guide cylinders 208, the abutment shaft 201 has a first conical surface 202 and a second conical surface 203 at both ends, the second conical surface 203 abuts against the third conical surface 205, and the first conical surface 202 is used to abut against the conical positioning ring 408.

[0043] The thread sleeve 204 is a regular polygon and will not rotate along the inner wall of the seat tube 207. When the screw rod 206 rotates, the thread sleeve 204 slides and presses against the shaft 201, and the shaft 201 extends outward and gradually contacts and tightens the conical positioning ring 408. Due to the small angle of the contact cone surface, it has a certain reverse self-locking ability, which can firmly clamp the support fixture frame 4 on the sliding bracket 1.

[0044] In the preferred embodiment, the abutting shaft 201 is provided with a shaft shoulder 211, a return spring 210 is sleeved on the outer side of the abutting shaft 201, a stop cap 209 is provided at the end of the guide cylinder 208, and both ends of the return spring 210 abut against the stop cap 209 and the shaft shoulder 211 respectively.

[0045] When the screw rod 206 is reversed and the screw sleeve 204 moves downward, each abutting shaft 201 is retracted under the action of the spring force.

[0046] In the preferred embodiment, a worm wheel 11 is provided at the end of the screw rod 206, and a first connecting shaft 13 is also provided on the sliding bracket 1. A plurality of worms 12 are sleeved on the first connecting shaft 13, and each worm 12 is meshed with each worm wheel 11. A second connecting shaft 14 is also provided which is perpendicular to the first connecting shaft 13. The second connecting shaft 14 and the first connecting shaft 13 are driven by a bevel gear set 15. A clamping motor 16 is also provided on the sliding bracket 1, and the clamping motor 16 drives the second connecting shaft 14 to rotate so that each screw rod 206 rotates synchronously.

[0047] The same motor is used to uniformly drive each locking device 2 to clamp the supporting fixture frame 4, which makes the clamping operation fast, reduces hardware costs, and enhances the clamping consistency. The dispersed force and unified clamping method make the fixation of the steel tower segment 8 more stable and reliable.

[0048] In the preferred embodiment, at least two guide cone columns 102 and guide sleeves 103 are provided on the sliding bracket 1, and the guide cone columns 102 and the guide sleeves 103 are slidably connected. The supporting tooling frame 4 is also provided with at least two guide holes 407, and each guide cone column 102 is inserted into each guide hole 407. A rotatable screw 104 is provided in the guide sleeve 103, and the screw 104 is threadedly connected with the guide cone column 102. A worm gear 11 is provided at the end of the screw 104, and the worm gear 11 is meshed with the worm 12. The thread rotation direction of the screw 104 is opposite to that of the lead screw 206.

[0049] A keyway and a key are arranged in the guide sleeve 103, and a guide groove is arranged on the inner wall of the guide cone column 102 to prevent the guide cone column 102 from rotating. The abutment shaft 201 also adopts a key and guide groove structure to prevent rotation.

[0050] The guide cone column 102 is initially in a raised state, with a height higher than the locking device 2. When the crane lifts the support fixture frame 4 and places it on the sliding bracket 1, the guide cone column 102 guides the guide hole 407 to prevent the support fixture frame 4 from colliding and damaging the locking device 2. After the support fixture frame 4 falls on the sliding bracket 1, the clamping motor 16 rotates, the guide cone column 102 descends, and the bevel gear at the shaft end drives the bevel gear on the second connecting shaft 14 to drive the second connecting shaft 14 to rotate. The second connecting shaft 14 drives each first connecting shaft 13 to rotate synchronously through the bevel gear set 15, driving each second connecting shaft 14 to rotate synchronously, and finally drives each abutting shaft 201 to extend synchronously and abut against the conical positioning ring 408.

[0051] In the preferred embodiment,

[0052] The water sliding platform is constructed according to the special design. After the sliding platform is constructed, the sliding bracket 1, the continuous jack 6 and the traction cable 7 are installed on the slideway of the track beam 5;

[0053] Lift the supporting fixture frame 4 onto the sliding bracket 1 and temporarily fix it;

[0054] Each steel tower segment 8 is transported to the vicinity of the sliding platform by a transport ship, and a floating crane is used to hoist the steel tower segment 8 onto the supporting fixture frame 4;

[0055] Adjust the posture of the steel tower segment 8, and use the continuous jacks 6 on the two track beams 5 and the traction cables 7 to pull the steel tower segment 8 synchronously and uninterruptedly. During the traction process, monitor whether the steel tower segment 8 is tilted at any time;

[0056] Repeat the sliding transfer of the remaining segments until all segments have been transferred.

[0057] In the preferred solution, the track beams 5 are divided into two groups, each group is responsible for transporting a steel tower segment 8, after the sliding bracket 1 on the track beams 5 of the first group transports the steel tower segment 8 to the area close to the bridge tower construction area, the supporting tooling frame 4 is separated from the sliding bracket 1, and the crane lifts the supporting tooling frame 4 and the steel tower segment 8 together to the bridge tower construction area;

[0058] At the same time, the next steel tower segment 8 is hoisted on the transport ship to the supporting tooling frame 4 on the second set of track beams 5 and slides to the bridge tower construction area;

[0059] The sliding bracket 1 of the first set of track beams 5 is driven by the travel motor 10 to return to the area close to the transport ship;

[0060] The first group of sliding brackets 1 and the second group of sliding brackets 1 slide and transport each steel tower segment 8 alternately until all the steel tower segments 8 have been transported.

[0061] Embodiment 2:

[0062] A 400-ton asymmetric steel tower structure sliding method is specially designed for a 400-ton water sliding platform. The structure is ultra-deep steel pipe piles + longitudinal and transverse distribution beams + sliding track beams + sliding seats. In addition, a steel tower support frame design is added for the asymmetric steel tower structure. On this basis, intelligent continuous jacks, steel strands, PTFE plates and other sliding tooling are cleverly used to form a set of water steel tower structure sliding construction methods that integrate special designs and special intelligent tooling, including:

[0063] (1) A 400-ton asymmetric steel tower structure, characterized in that the steel tower structure is 6.6 meters high and has a total weight of 401 tons. It is a spatially asymmetric structure. The lower 3 meters of the first section of the steel tower is a hollow shell structure, that is, the weight is mainly concentrated in the upper 3.6 meters, and the main tower is tilted to the right as a whole, with the weight mainly concentrated in the upper right part.

[0064] (2) The above-water sliding platform is characterized by a total length of 49m, a steel pipe pile of 1000mm×10mm steel pipe, a first pile distance close to the riverside land of the main pier, a lateral spacing of 8m for the steel pipe piles, a longitudinal span of 6.5m, a depth of 28m in the ground, and a maximum length of 40m. The flat joints are made of 630mm×8mm steel pipes. The track beams are made of 2HN900×300 steel, an operating platform is set on the track beams, and two 40a connecting braces are set between the track beams. The steel tower sliding joist is planned to be made of 3HN900×300 steel, and the joist connecting beam is made of 426mm×6mm steel pipes.

[0065] (3) The support frame is characterized in that the support frame adopts a frame structure, the center of gravity of the first section of the steel tower and the centroid of the steel support frame are on the same straight line, the steel support frame is provided with four columns, the columns are made of 426mm×6mm steel pipes, the support frame is fixed in the steel tower, and slides together with the steel tower;

[0066] (4) The sliding fixture is characterized in that the sliding fixture consists of two 200t intelligent continuous jacks + steel strands + anchors + a polytetrafluoroethylene slide plate laid on the track. The intelligent continuous jack includes a digital control cabinet system, a jack tensioning system, etc. The continuous jack is used to ensure that the sliding process is continuous and uninterrupted. Compared with conventional jacks or winches, the safety of sliding of super-large tonnage steel towers is greatly increased.

[0067] (5) A 400-ton asymmetric steel tower structure sliding method, characterized in that it comprises the following steps:

[0068] Step 1: Construct the water sliding platform according to the special design. After the sliding platform is constructed, install the sliding joist, steel strand, intelligent continuous jack and corresponding anchors on the track beam slideway;

[0069] Step 2: Hoist the support frame onto the sliding joist in advance and temporarily fix it;

[0070] Step 3: The steel tower segment is transported to the vicinity of the main pier sliding platform by a 2000t transport ship (as close as possible while ensuring that the draft of the transport ship is sufficient), and an 800t floating crane is used to hoist the 401t first steel tower segment onto the support frame, and the center of gravity of the steel tower and the center of gravity of the support frame are checked to see if they are on a vertical straight line. After the check is completed, they are fixed;

[0071] Step 4: Adjust the posture of the steel tower, and use the 200t intelligent continuous jack (equipped with steel strands and anchors) on two tracks to pull it synchronously and uninterruptedly. During the pulling process, monitor whether the steel tower is tilted at any time, and pull it slowly and uninterruptedly until it slides 49m to complete the sliding;

[0072] Step 5: After the first section of the steel tower is slid, adjust the position and spacing of the sliding support beams to adapt to the subsequent large-tonnage steel towers with different cross-sections, reinstall the support frame of the lower section steel tower (since the cross-sections of each steel tower segment are different, the support frame is also different), and repeat the above steps until all 16 400-ton asymmetric steel tower segments of this project are slid.

[0073] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A bridge tower segment sliding transport device, characterized by: The invention comprises a steel pipe pile (3) arranged near the shore, at least two track beams (5) are arranged on the upper end of the steel pipe pile (3), one end of the track beam (5) is used to approach a transport ship, and the other end of the track beam (5) is used to approach a bridge tower construction area, a slidable sliding bracket (1) is arranged on the track beam (5), and a supporting tool frame (4) for supporting a steel tower segment (8) is arranged on the sliding bracket (1), and a continuous jack (6) is arranged on one end of each track beam (5) near the bridge tower construction area, and a traction cable (7) is also arranged, one end of the traction cable (7) is connected to the continuous jack (6), and the other end of the traction cable (7) is used to pull the supporting tool frame (4).

2. The bridge tower segment sliding transfer device according to claim 1 is characterized in that: A reaction seat (601) is provided at the end of the track beam (5), one end of the continuous jack (6) abuts against the reaction seat (601), a traction cable (7) passes through the reaction seat (601), one end of the traction cable (7) is provided with an anchor (701), and the anchor (701) is connected to the sliding bracket (1).

3. The bridge tower segment sliding transfer device according to claim 1 is characterized in that: The supporting tool frame (4) comprises an internal supporting frame (401) and an external supporting frame (402), wherein the internal supporting frame (401) and the external supporting frame (402) are provided with vertical supporting columns (403) and horizontal parallel connecting rods (404) connected to each other, and each vertical supporting column (403) is provided with a contoured flange plate (405) at the upper end, and the contoured flange plate (405) is connected to the outer wall of the steel tower segment (8).

4. The bridge tower segment sliding transfer device according to claim 1 is characterized in that: The supporting fixture frame (4) is provided with a positioning hole (406), the sliding bracket (1) is provided with a locking device (2), the positioning hole (406) and the locking device (2) are sleeved for positioning, the inner wall of the positioning hole (406) is provided with a conical positioning ring (408), and the locking device (2) is provided with an extendable abutting shaft (201), one end of the abutting shaft (201) abuts against the conical positioning ring (408).

5. The bridge tower segment sliding transfer device according to claim 4 is characterized in that: The locking device (2) comprises a seat tube (207), a rotatable screw rod (206) is arranged in the seat tube (207), a threaded sleeve (204) is sleeved on the screw rod (206), the sleeve (204) is slidably connected to the inner wall of the seat tube (207), the sleeve (204) is provided with a third cone surface (205), the seat tube (207) is provided with a plurality of guide cylinders (208) along the circumferential direction, the abutment shaft (201) is slidably sleeved with the guide cylinders (208), the abutment shaft (201) is provided with a first cone surface (202) and a second cone surface (203) at both ends, the second cone surface (203) abuts against the third cone surface (205), and the first cone surface (202) is used to abut against a conical positioning ring (408).

6. The bridge tower segment sliding transfer device according to claim 5 is characterized in that: The shaft (201) is provided with a shaft shoulder (211), a return spring (210) is sleeved against the outer side of the shaft (201), a stop cap (209) is provided at the end of the guide cylinder (208), and two ends of the return spring (210) respectively abut against the stop cap (209) and the shaft shoulder (211).

7. The bridge tower segment sliding transfer device according to claim 6 is characterized in that: A worm wheel (11) is provided at the end of the lead screw (206), and a first connecting shaft (13) is also provided on the sliding bracket (1). A plurality of worms (12) are sleeved on the first connecting shaft (13), and each worm (12) is meshed with each worm wheel (11). A second connecting shaft (14) is also provided which is perpendicular to the first connecting shaft (13), and the second connecting shaft (14) and the first connecting shaft (13) are driven by a bevel gear set (15). A clamping motor (16) is also provided on the sliding bracket (1), and the clamping motor (16) drives the second connecting shaft (14) to rotate so that each lead screw (206) rotates synchronously.

8. The bridge tower segment sliding transfer device according to claim 7 is characterized in that: The sliding bracket (1) is provided with at least two guide cone columns (102) and guide sleeves (103), the guide cone columns (102) and the guide sleeves (103) are slidably sleeved, the supporting fixture frame (4) is further provided with at least two guide holes (407), each guide cone column (102) is inserted into each guide hole (407), a rotatable screw rod (104) is provided in the guide sleeve (103), the screw rod (104) and the guide cone column (102) are threadedly sleeved, a worm wheel (11) is provided at the end of the screw rod (104), the worm wheel (11) is meshed with the worm (12), and the screw rod (104) and the lead screw (206) have opposite thread rotation directions.

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