A large component moving device, assembly system and method of operation and use thereof

Abstract

The application discloses a large component moving device, relates to the field of large component pushing technology, and solves the technical defects of low efficiency or frog jumping of existing pushing equipment, and the device comprises a slide, the slide is provided with at least one sliding mechanism for driving the large component to move forward, and the two ends of the slide are respectively provided with a pier mechanism; and the device further comprises a driving mechanism for continuously driving the sliding mechanism to move. The application further discloses a combined system of the large component moving device, an operation method and application thereof. The first connecting piece is arranged on the counterforce seat at the two ends of the slide, and is pre-tightened, so that the frog jumping phenomenon of the hydraulic continuous pushing jack in the pushing process can be avoided, the stroke of one pushing is the length of the slide, and the efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of large component jacking technology, and more specifically, to a large component moving device, a combination system, its operation method and application. Background Technology

[0002] Currently, there are two commonly used types of equipment for jacking large components, such as bridges. One type is the walking type, which uses a rigid jacking device. This device includes three mechanisms: longitudinal movement, lifting, and lateral movement. The lateral movement structure is for correction, and the longitudinal movement structure is for jacking the main beam. The jacking stroke of the main beam is the stroke of one jack. The walking type has the following problems: short step distance, frequent lifting and lowering, and low efficiency. The other type is the dragging type, which uses a flexible jacking device. This device includes lateral movement and lifting mechanisms. It requires the installation of corbel structures and anchor plates on the main beam, and reaction structures on the slide. The two parts of the structure are connected by steel strands. Jacks drag the main beam by clamping the steel strands. During the dragging process, the steel strands move longitudinally with the main beam. The dragging stroke of the main beam is the length of the slide. The dragging problem has the following problems: it is prone to the "frog jumping" phenomenon, which is unstable and can easily damage the equipment or large components, affecting construction safety. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art. The purpose of the present invention is to provide a large component moving device with high efficiency and no frog-jumping phenomenon.

[0004] The second objective of this invention is to provide an operating method for a large component moving device that is highly efficient and free from the "frog-jumping" phenomenon.

[0005] The third objective of this invention is to provide a combined system for a large component moving device that is highly efficient and free from the "frog-jumping" phenomenon.

[0006] The fourth objective of this invention is to provide an operating method for a combined system of large component moving devices that is highly efficient and free from the "frog-jumping" phenomenon.

[0007] The fifth objective of this invention is to provide an application of a large component moving device that is highly efficient and free from the "frog-jumping" phenomenon.

[0008] The sixth objective of this invention is to provide an application of a combined system for a large component moving device that is highly efficient and free from the "frog-jumping" phenomenon.

[0009] To achieve the first objective mentioned above, the present invention provides a large component moving device, including a slide rail, wherein the slide rail is provided with at least one sliding mechanism for moving the large component forward, and support mechanisms are respectively provided at both ends of the slide rail; it also includes a driving mechanism for driving the sliding mechanism to move continuously along the slide rail.

[0010] Furthermore, the sliding mechanism moves continuously along the slide, and its travel is limited only to a distance of more than 1 meter in the longitudinal dimension of the slide on the construction platform.

[0011] Furthermore, when the number of sliding mechanisms is greater than 1, two adjacent sliding mechanisms are connected by a second connector.

[0012] Furthermore, the driving mechanism includes reaction seats respectively located at both ends of the slide, a pre-tightened first connecting member is provided between the two reaction seats, and at least one of the sliding mechanisms is provided with a hydraulic continuous jack sleeved around the first connecting member.

[0013] Furthermore, the first connector is a steel strand or a bundle of steel strands.

[0014] Furthermore, the first connector is pre-stretched to the design force value.

[0015] Furthermore, the sliding mechanism includes a sliding box, which is equipped with a lifting jack and a bracket connected to the hydraulic continuous pushing jack.

[0016] Furthermore, a first sliding structure is provided between the sliding box and the lifting jack.

[0017] Furthermore, a correction jack is provided on each side of the lifting jack.

[0018] Furthermore, both of the aforementioned corrective jacks are connected to the pressure plate that abuts the lifting jack, jointly pushing the lifting jack to move laterally.

[0019] Furthermore, a second sliding structure is provided between the bottom of the slide box and the slide rail.

[0020] Furthermore, the sliding mechanism includes a slider, which is provided with a support block and a jack seat connected to the hydraulic continuous jacking jack.

[0021] Furthermore, a third sliding structure is provided between the slider and the slide rail.

[0022] Furthermore, the support mechanism includes at least one support jack.

[0023] Furthermore, a reset mechanism is provided on one side of the slide to drag the sliding mechanism back to its original position.

[0024] Furthermore, the reset mechanism is an electric winch or a hydraulic winch.

[0025] Furthermore, the driving mechanism is a gear and rack mechanism or a screw and nut mechanism driven by a hydraulic motor.

[0026] To achieve the second objective mentioned above, the present invention provides an operation method for a large component moving device, the specific steps of which are as follows:

[0027] S1. Install the large component moving device and install the support mechanism at both ends of the slide;

[0028] S2. Large components are lifted by jacking jacks, and the sliding box is driven to move continuously along the slide by hydraulic continuous jacking jacks. The stroke is only limited to the longitudinal dimension of the slide of the construction platform plane, which is more than 1 meter.

[0029] S3. During the continuous movement of the slide box along the slide rail, monitor the lateral displacement of the large components. If the lateral displacement of the large components exceeds the set value, stop or move, and correct the deviation using a correction jack.

[0030] S4. Lifting the jacks and lowering them allows large components to be temporarily supported on the support structure;

[0031] S5. Use an electric winch or hydraulic winch to return the slide box to its initial position;

[0032] S6. Repeat steps S2 to S5 until the required movement distance of large components for the jacking construction is achieved.

[0033] To achieve the third objective mentioned above, the present invention provides a combined system for moving large components, the combined system comprising N large component moving devices as described above, where N is an integer greater than 1, and the combined system operates synchronously through a control center.

[0034] To achieve the fourth objective mentioned above, the present invention provides an operation method for a combined system of a large component moving device, the specific steps of which are as follows:

[0035] S21. The lifting jacks of N large component moving devices are synchronously controlled by the control center to pre-lift to the bottom of the large component;

[0036] S22. Simultaneously control N lifting jacks to lift large components, and simultaneously control the hydraulic continuous jacking jacks of N large component moving devices to drive the slide box to move longitudinally. The stroke is only limited to the longitudinal dimension of the construction platform slide track of more than 1 meter.

[0037] S23. During the continuous movement of the slide box along the slide rail, monitor the lateral displacement of the large components. If the lateral displacement of the large components exceeds the set value, stop or move, and independently control the correction jacks of each large component's moving device to correct the deviation.

[0038] S24. Synchronously control the descent of N lifting jacks to temporarily support large components on the support structure;

[0039] S25. Synchronously control the electric or hydraulic winches of N large component moving devices to drag each slide box back to its initial position;

[0040] S26. Repeat steps S21 to S25 until the required movement distance of large components for the jacking construction is achieved.

[0041] To achieve the fifth objective mentioned above, the present invention provides the application of the aforementioned large component moving device in bridge construction.

[0042] To achieve the above-mentioned objective six, the present invention provides an application of a combined system of large component moving devices in bridge construction.

[0043] Beneficial effects

[0044] Compared with the prior art, the advantages of this invention are as follows:

[0045] The drive mechanism of this invention, by setting a first connecting member on two reaction seats and pre-tightening it, can avoid the frog-jumping phenomenon during the jacking process of the hydraulic continuous jacking jack. Alternatively, the drive mechanism can be any one of a hydraulic motor, gear and rack mechanism, or screw and nut mechanism, which can also avoid the frog-jumping phenomenon, thus improving the safety of the equipment. The stroke of one jacking is the length of the slide, which is much greater than the stroke of the jack of the traditional walking equipment. It is highly efficient and greatly reduces the number of jacking operations, which can also improve the service life of the equipment and the safety of the equipment's oil supply system. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0047] Figure 2 This is a top view of the structure of the present invention;

[0048] Figure 3 This is a partially enlarged view of the present invention;

[0049] Figure 4 for Figure 3 A cross-sectional view of the CC line;

[0050] Figure 5 This is a front view schematic diagram of the structure of the present invention, which has only one sliding mechanism.

[0051] Figure 6 This is a schematic diagram of the front view of the slide box in this invention;

[0052] Figure 7 for Figure 6 Sectional view of line AA in the middle;

[0053] Figure 8 This is a top view of the slide box structure in this invention;

[0054] Figure 9 This is a three-dimensional structural diagram of the slide box in this invention;

[0055] Figure 10 This is a schematic diagram of the lifting jack in this invention;

[0056] Figure 11 This is a schematic diagram of the structure of the slide box with two lifting jacks installed in this invention;

[0057] Figure 12 This is a schematic diagram of the structure of a drive mechanism used in this invention;

[0058] Figure 13 This is a schematic diagram of the slide box using a drive mechanism in this invention.

[0059] Figure 14 This is a schematic diagram of the main structure of the sliding mechanism in this invention without a lifting jack;

[0060] Figure 15 This is a schematic diagram of the main structure of the sliding mechanism in this invention, which has no lifting jack and two driving mechanisms.

[0061] Figure 16 This is a schematic diagram of the main structure of the sliding mechanism in this invention, which has no lifting jack and has a driving mechanism.

[0062] Figure 17 This is a schematic diagram of the slider structure in this invention;

[0063] Figure 18 A schematic diagram of a structure in which two sliding mechanisms are arranged laterally at intervals;

[0064] Figure 19 A schematic diagram of the structure connecting two sliding mechanisms;

[0065] Figure 20 A schematic diagram of a gear and rack mechanism as the driving mechanism;

[0066] Figure 21 A schematic diagram of a screw-nut mechanism as the driving mechanism;

[0067] Figure 22 This is a schematic diagram of the snap-fit ​​plate in this invention;

[0068] Figure 23 This is a block diagram of the combined system in this invention.

[0069] Among them: 1-slide rail, 2-reaction seat, 3-first connecting piece, 4-sliding mechanism, 5-lifting jack, 6-drive mechanism, 7-reset mechanism, 8-second connecting piece, 9-slide box, 10-bracket, 11-correction jack, 12-pressure plate, 14-support mechanism, 15-reinforcing plate, 16-first stainless steel plate, 17-first PTFE plate, 19-second PTFE plate, 20-connecting seat, 22-support pier, 23-jack seat, 24-support jack, 25-large component, 26-third PTFE plate, 27-clamping plate, 28-slider, 29-hydraulic motor, 30-gear rack mechanism, 31-screw and nut mechanism. Detailed Implementation

[0070] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0071] See Figure 1-23 A large component moving device includes a slide 1, the slide 1 is provided with at least one sliding mechanism 4 for moving the large component 25 forward, and support mechanisms 14 are respectively provided at both ends of the slide 1; it also includes a driving mechanism 6 for driving the sliding mechanism 4 to move continuously along the slide 1.

[0072] Preferably, the sliding mechanism 4 moves continuously for more than 1 meter along the slide rail 1, with a maximum effective stroke of more than 2 meters in a single operation. The stroke is limited only by the dimensions of the construction platform. The length of the slide rail 1 is determined comprehensively based on the beam type, pier size, slide rail beam length, and construction requirements of the large component. For example, in a certain project, the main bridge truss beam component has a segment length of 26 meters, and the construction requirement is to push it 26 meters in one operation. Therefore, the slide rail beam length is set to 32 meters, while the length of the slide rail 1 is not less than 26 meters. Preferably, the sliding mechanism 4 can be driven by the drive mechanism 6 to move continuously for 26 meters in one operation on the slide rail 1.

[0073] The number of sliding mechanisms 4 can be set according to actual needs. For example, when the length of a large component 25 is relatively short, one sliding mechanism 4 is sufficient for stable operation. Figure 5 As shown; when large components 25 are long, such as bridge components, and are heavy, two sliding mechanisms 4 can be set to improve operational stability, such as... Figure 1 As shown; for extra-large components 25, three or more sliding mechanisms 4 can be set.

[0074] When the number of sliding mechanisms 4 is greater than one, two adjacent sliding mechanisms 4 are connected by a second connecting member 8, enabling synchronous movement among the sliding mechanisms 4. Only one sliding mechanism 4 needs a drive mechanism 6 to propel it forward synchronously. Of course, if the weight of the large component 25 is too great, drive mechanisms 6 can be installed in two or more sliding mechanisms 4 to operate simultaneously, improving operational stability. The second connecting member 8 is a connecting rod or a connecting plate.

[0075] like Figure 3 The diagram shows two sliding mechanisms 4 arranged longitudinally at intervals on the slide rail 1. This method is suitable for large components 25 with long lengths, such as... Figure 18 The diagram shows two sliding mechanisms 4 arranged laterally at intervals on the slide rail 1. This method is suitable for large components 25 with a wide profile, such as... Figure 19 The diagram shows two sliding mechanisms 4 connected and arranged on the slide rail 1. This method is suitable for large components 25 that are tall and heavy.

[0076] When there are two drive mechanisms 6 on the same sliding mechanism 4, the two drive mechanisms 6 are arranged on both sides of the sliding mechanism 4, such as... Figure 2 , Figure 15 As shown; when there is only one drive mechanism 6 on the same sliding mechanism 4, the drive mechanism 6 is arranged in the middle of the sliding mechanism 4, as shown. Figure 12 , Figure 16 As shown.

[0077] In one embodiment, the drive mechanism 6 includes reaction seats 2 respectively located at both ends of the slide rail 1, with a pre-tightened first connecting member 3 between the two reaction seats 2. At least one sliding mechanism 4 is equipped with a hydraulic continuous jacking jack sleeved around the first connecting member 3. The first connecting member 3 is a steel strand or a bundle of steel strands. The steel strand bundle passes through the hydraulic continuous jacking jack, and the sliding mechanism 4 is driven to move forward through the interaction between the hydraulic continuous jacking jack and the steel strand bundle. The first connecting member 3 is pre-tensioned to the design force value, which is greater than the static friction force of the first connecting member 3 under load. Pre-tightening ultimately reduces or eliminates the unfavorable working condition of frog jumping. At the same time, the flexibility of the steel strand reduces the alignment accuracy requirements of the reaction seats 2, the hydraulic continuous jacking jack, and the sliding mechanism 4, making installation simpler.

[0078] Of course, the first connector 3 can also be a high-strength fiber harness, iron chain, or metal rod.

[0079] like Figure 4 , 6 As shown in Figure -10, the sliding mechanism 4 includes a sliding box 9, which is equipped with a lifting jack 5 and a bracket 10 connected to a hydraulic continuous jacking jack. A steel strand bundle passes through the bracket 10 and the hydraulic continuous jacking jack. Reinforcing plates 15 are welded to both sides of the top of the sliding box 9 to improve the connection strength of the four walls of the sliding box 9. The bracket 10 is located on top of the reinforcing plate 15.

[0080] The number of lifting jacks 5 installed in the sliding box 9 can be set according to actual needs, such as... Figure 4 The image shows a lifting jack 5 installed in the sliding box 9, as shown. Figure 11 The image shows two lifting jacks 5 installed in the sliding box 9. (As shown) Figure 6Brackets 10 are provided on both sides of the sliding box 9, and two hydraulic continuous jacks are installed accordingly. Figure 13 A bracket 10 is provided in the middle of the slide box 9, and a hydraulic continuous jack is installed thereto. A lifting jack 5 is installed on each side of the bracket 10 to improve the stability of the operation.

[0081] A first sliding structure is provided between the sliding box 9 and the lifting jack 5. The first sliding structure includes a first PTFE plate 17 located at the bottom of the lifting jack 5 and a first stainless steel plate 16 located at the bottom of the inner cavity of the sliding box 9. The first PTFE plate 17 and the first stainless steel plate 16 form a sliding structure with a low friction pair in the lateral direction, which reduces the correction force and facilitates the selection of a small and lightweight correction jack 11. It is also beneficial to optimize the structure of the sliding box 9. At the same time, during the correction process, it can prevent the steel strand from being affected by the lateral shear force and thus avoid breaking, which could cause a safety accident. Therefore, it improves the safety, stability and service life of the equipment.

[0082] On either side of the lifting jack 5, there are correction jacks 11. In one embodiment, on both sides of the sliding box 9, there are horizontally opposed correction jacks 11, such as... Figure 9 As shown, the centerlines of the two correction jacks 11 are on the same straight line and are basically perpendicular to the direction of the slide rail 1. The lifting jack 5 is located between the two correction jacks 11. The outer ends of the push rods of both correction jacks 11 are provided with pressure plates 12 that abut against the lifting jack 5. The contact surface between the pressure plates 12 and the lifting jack 5 is an arc-shaped surface, which ensures that the thrust of the pressure plates 12 is at the center of the lifting jack 5, thereby ensuring the stability of the correction. In another embodiment, parallel correction jacks 11 are provided on both sides of the slide box 9, such as... Figure 22 As shown, a clamping plate 27 is provided between the two straightening jacks 11 to clamp the lifting jack 5, and the two straightening jacks 11 move in the same direction.

[0083] A second sliding structure is provided between the bottom of the slide box 9 and the slide rail 1. The second sliding structure includes a second PTFE plate 19 located at the bottom of the slide box 9 and a second stainless steel plate located in the slide rail 1, such as... Figure 6 As shown, the second PTFE plate 19 and the second stainless steel plate form a longitudinal low-friction pair, which reduces the longitudinal sliding force and the number of steel strands. At the same time, it is easier to select a small and lightweight drive mechanism 6, which can improve the stability of operation and extend the service life of the equipment.

[0084] The side wall of the slide box 9 is provided with a connecting seat 20 for connecting the second connecting member 8. In order to ensure even force distribution, connecting seats 20 are provided on both sides of the side wall of the slide box 9. Alternatively, connecting seats 20 can be provided only in the middle of the side wall of the slide box 9.

[0085] In one embodiment, such as Figure 14-17As shown, the sliding mechanism 4 includes a slider 28, which is equipped with a support pier 22 and a jack seat 23 connected to a hydraulic continuous jack. The slider 28 can be equipped with one or two hydraulic continuous jacks. A third sliding structure is provided between the slider 28 and the slide rail 1. The second sliding structure includes a third PTFE plate 26 located at the bottom of the slider 28 and a third stainless steel plate located in the slide rail 1. The third PTFE plate 26 and the second stainless steel plate form a longitudinal low-friction pair. The support pier mechanism 14 includes at least one support jack 24. When the weight of the large component 25 is relatively small, the support pier mechanism 14 only needs to include one support jack 24. The support jack 24 lifts the large component 25 through a pad. When the large component 25 is large, the support pier mechanism 14 includes two support jacks 24, such as... Figure 16 As shown.

[0086] A reset mechanism 7 is provided on one side of the slide rail 1 to reset the sliding mechanism 4. When the drive mechanism 6 drives the sliding mechanism 4 to move one stroke, the reset mechanism 7 drags the sliding mechanism 4 back to its initial position. Figure 1 , 2 The sliding mechanism 4 is shown in the diagram. The sliding mechanism 4 moves a distance equal to the length of the slide rail 1. In this embodiment, the reset mechanism 7 is an electric winch or a hydraulic winch. The rope of the electric winch or hydraulic winch is connected to the sliding mechanism 4. Using the reset mechanism 7 can increase the reset speed of the sliding mechanism 4, thereby improving work efficiency.

[0087] In other embodiments, the reset mechanism 7 may also be a winch, electric hoist, screw and nut mechanism, or electric push rod.

[0088] Guide plates are provided on both sides of the slide 1. The sliding mechanism 4 is located between the two guide plates and moves along the guide plates, which can ensure the motion accuracy during the movement process.

[0089] In other embodiments, the drive mechanism 6 can be a gear and rack mechanism 30 driven by a hydraulic motor 29 or a screw and nut mechanism 31. For example... Figure 20 As shown, when the drive mechanism 6 is a gear and rack mechanism, the gear is installed on the sliding mechanism 4, and the rack is installed on one side of the slide rail 1; as shown Figure 21 As shown, when the drive mechanism 6 is a screw and nut mechanism, the screw is installed on one side of the slide rail 1, and the nut is installed on the sliding mechanism 4. Since the rigidity of the gear rack or screw and nut structure is much greater than that of soft components such as steel strands, the elongation under stress is small, which can avoid the frog-jumping phenomenon.

[0090] An operation method for a large component moving device, the specific steps of which are as follows:

[0091] S1. Install the large component moving device and install the support mechanism 14 at both ends of the slide 1;

[0092] S2. The large component is lifted by the lifting jack 5, and the slide box 9 is driven to move continuously along the slide rail 1 by the hydraulic continuous jacking jack for a stroke of more than 1 meter. The stroke is only limited by the longitudinal dimension of the slide rail on the construction platform.

[0093] S3. During the continuous movement of the slide box 9 along the slide rail 1, monitor the lateral displacement of the large component. If the lateral displacement of the large component exceeds the set value, stop or move, and correct the deviation by using the correction jack 11.

[0094] S4. Lift jack 5 and lower it to temporarily support the large component on the support mechanism 14;

[0095] S5. Use an electric winch or hydraulic winch to pull the slide box 9 back to its initial position;

[0096] S6. Repeat steps S2 to S5 until the required movement distance of large components for the jacking construction is achieved.

[0097] like Figure 23 As shown, a combined system of large component moving devices is provided. The combined system includes N large component moving devices as described above, where N is an integer greater than 1. The combined system operates synchronously through a control center.

[0098] The operation method of a combined system for moving large components includes the following specific steps:

[0099] S21. The lifting jacks 5 of the N large component moving devices are pre-lifted to fit the bottom of the large component through the control center.

[0100] S22. Synchronously control N lifting jacks 5 to lift large components, and synchronously control the hydraulic continuous jacking jacks of N large component moving devices to drive the slide box 9 to move continuously along the slide rail 1 for more than 1 meter. The stroke is only limited by the longitudinal dimension of the slide rail on the construction platform.

[0101] S23. During the continuous movement of the slide box 9 along the slide rail 1, monitor the lateral displacement of the large components. If the lateral displacement of the large components exceeds the set value, stop or move, independently control the correction jacks 11 of each large component's moving device to correct the deviation.

[0102] S24. Synchronously control the N lifting jacks 5 to lower them so that the large components are temporarily supported on the support mechanism 14;

[0103] S25. Synchronously control the electric or hydraulic winches of the N large component moving devices to drag each slide box 9 back to its initial position;

[0104] S26. Repeat steps S21 to S25 until the required movement distance of large components for the jacking construction is achieved.

[0105] Application of a large component moving device in bridge construction.

[0106] Application of a combined system for moving large components in bridge construction.

[0107] The mobile device of this invention is a semi-flexible jacking device, combining the advantages of rigid and flexible jacking. It features a long step distance, with the sliding mechanism's travel distance equal to the length of the slide track in one stroke, far exceeding the jack stroke of traditional walking-type equipment. This results in rapid, safe, stable, and reliable operation. All components are modularly designed, allowing for arbitrary assembly of modules according to the bridge's jacking weight. Installation is simple, and it boasts strong versatility, enabling the formation of standardized product series. The design incorporates low-friction pairs in both the transverse and longitudinal directions, effectively addressing lateral forces during the jacking process and extending the equipment's service life. No welding of the bracket structure is required, avoiding damage to the main beam structure. The steel strands are pre-tensioned and fixed to the reaction seat, preventing movement with the main beam and eliminating the "jumping" phenomenon. After completing one stroke, the jacking equipment returns unloaded, utilizing an electric or hydraulic winch for rapid return, resulting in high overall construction efficiency.

[0108] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention, and these will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A large component moving device, comprising a slide (1), characterized in that, The slide (1) is provided with at least one sliding mechanism (4) for moving large components forward, and support mechanisms (14) are provided at both ends of the slide (1); it also includes a drive mechanism (6) for driving the sliding mechanism (4) to move continuously along the slide (1). The driving mechanism (6) includes reaction seats (2) respectively located at both ends of the slide (1), and a first connecting member (3) that has been pre-tightened is provided between the two reaction seats (2). At least one of the sliding mechanisms (4) is provided with a hydraulic continuous jack sleeved around the first connecting member (3). The sliding mechanism (4) is driven to move continuously along the slide (1) by the hydraulic continuous jack. The first connector (3) is a steel strand; The first connector (3) is pre-stretched to the design force value, which is greater than the static friction force of the first connector (3) under load; After the steel strands are pre-tightened, they are fixed on the reaction seat. The steel strands do not move with the main beam and there is no frog-jumping phenomenon.

2. The large component moving device according to claim 1, characterized in that, The sliding mechanism (4) moves continuously for more than 1 meter along the slide (1), and the stroke is limited only by the longitudinal dimension of the slide on the construction platform.

3. The large component moving device according to claim 1, characterized in that, When the number of the sliding mechanism (4) is greater than 1, two adjacent sliding mechanisms (4) are connected by a second connector (8).

4. A large component moving device according to claim 1, characterized in that, The sliding mechanism (4) includes a slide box (9), which is equipped with a lifting jack (5) and a bracket (10) connected to the hydraulic continuous jack.

5. A large component moving device according to claim 4, characterized in that, A first sliding structure is provided between the slide box (9) and the lifting jack (5).

6. A large component moving device according to claim 4, characterized in that, The lifting jack (5) is equipped with a correction jack (11) on each side.

7. A large component moving device according to claim 6, characterized in that, Both of the aforementioned correction jacks (11) are connected to the top pressure plate (12) that abuts against the lifting jack (5), and together they push the lifting jack (5) to move laterally.

8. A large component moving device according to claim 4, characterized in that, A second sliding structure is provided between the bottom of the slide box (9) and the slide rail (1).

9. A large component moving device according to claim 1, characterized in that, The sliding mechanism (4) includes a slider (28), which is provided with a support block (22) and a jack seat (23) connected to the hydraulic continuous jacking jack.

10. A large component moving device according to claim 9, characterized in that, A third sliding structure is provided between the slider (28) and the slide (1).

11. A large component moving device according to claim 9, characterized in that, The support mechanism (14) includes at least one support jack (24).

12. A large component moving device according to any one of claims 4-8, characterized in that, The slide (1) is provided with a reset mechanism (7) on one side to drag the sliding mechanism (4) back to its original position.

13. A large component moving device according to any one of claims 1-3, characterized in that, The slide (1) is provided with a reset mechanism (7) on one side to drive the sliding mechanism (4) to reset.

14. A large component moving device according to claim 12, characterized in that, The reset mechanism (7) is an electric winch or a hydraulic winch.

15. A large component moving device according to any one of claims 9-11, characterized in that, The slide (1) is provided with a reset mechanism (7) on one side to drag the sliding mechanism (4) back to its original position.

16. A large component moving device according to claim 15, characterized in that, The reset mechanism (7) is an electric winch or a hydraulic winch.

17. The method of operating a large component moving device according to claim 14, characterized in that, The specific steps are as follows: S1. Install the large component moving device and install the support mechanism (14) at both ends of the slide (1). S2. The large components are lifted by the lifting jack (5), and the slide box (9) is driven by the hydraulic continuous jack to move continuously for more than 1 meter along the slide (1). The stroke is only limited by the longitudinal dimension of the slide on the construction platform. S3. During the continuous movement of the slide box (9) along the slide rail (1), monitor the lateral displacement of the large component. If the lateral displacement of the large component exceeds the set value, stop or move, and correct the deviation by using the correction jack (11). S4. Lift the jack (5) and lower it to temporarily support the large components on the support structure (14); S5. Drive the slide box (9) back to its initial position using an electric winch or hydraulic winch; S6. Repeat steps S2 to S5 until the required movement distance of large components for the jacking construction is achieved.

18. A combined system for moving large components, characterized in that, The combined system includes N large component moving devices as described in claim 14, where N is an integer greater than 1, and the combined system operates synchronously through a control center.

19. The method of operating a combined system for a large component moving device as described in claim 18, characterized in that, The specific steps are as follows: S21. The lifting jacks (5) of the N large component moving devices are synchronously controlled by the control center to pre-lift to the bottom of the large component; S22. Synchronously control N lifting jacks (5) to lift large components, and synchronously control the hydraulic continuous jacking jacks of N large component moving devices to drive the slide box (9) to move continuously for more than 1 meter along the slide (1). The stroke is only limited by the longitudinal dimension of the construction platform plane slide. S23. During the continuous movement of the slide box (9) along the slide rail (1), monitor the lateral displacement of the large components. If the lateral displacement of the large components exceeds the set value, stop or move, independently control the correction jacks (11) of each large component moving device to correct the deviation. S24. Synchronously control N lifting jacks (5) to lower so that the large components are temporarily supported on the support structure (14); S25. Synchronously control the electric or hydraulic winches of the N large component moving devices to drag each slide box (9) back to the initial position; S26. Repeat steps S21 to S25 until the required movement distance of large components for the jacking construction is achieved.

20. The application of a large component moving device according to any one of claims 1-16 in bridge construction.

21. The application of the combined system of a large component moving device as described in claim 18 in bridge construction.

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