Crawler-type continuous pushing system

Abstract

The present invention discloses a crawler-type continuous jacking system, in which a temporary pier support frame is arranged as a bottom support system, a load-bearing beam is arranged on the temporary pier support frame, and a longitudinal slideway, a conveying type annular chain belt and a longitudinal movement system are arranged on the load-bearing beam. The longitudinal movement system drives the conveying type annular chain belt to perform annular reciprocating motion around the load-bearing beam, and each main beam is transported forward in turn, thereby realizing continuous and uninterrupted conveying and jacking construction of the main beam, replacing the jacking and translation systems respectively arranged in the traditional construction structure, and there is no need to frequently lift and lower the main beam to perform force conversion. The temporary structure below the temporary pier support frame only needs to provide upward supporting force, thereby significantly improving construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge main beam construction, and more specifically, to a crawler-type continuous jacking system. Background Art

[0002] In the construction of bridge superstructures, the jacking process is widely used when crossing obstacles such as deep canyons, railways and rivers. At present, traditional jacking construction technologies are mainly divided into two types: dragging type and walking type. The dragging type has the disadvantages of excessive concentration of horizontal force, resulting in large horizontal force on the pier body, difficulty in correcting the deviation of the beam body, low degree of automation in construction control, large amount of temporary structure engineering, large investment in temporary measures, and high requirements for the structural strength of piers and bridge main beams. Although the walking type jacking technology overcomes the above shortcomings, it is necessary to set up a rest point in the temporary structure during the construction process to meet the functional requirements of frequent lifting and lowering of the jacking equipment for force conversion, resulting in complex force of the temporary structure and relatively low construction efficiency. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] Another object of the present invention is to provide a crawler-type continuous jacking system to solve the technical problem that the crawler-type jacking equipment of the main beam in the prior art needs to be frequently lifted and lowered to perform force conversion, resulting in complex force of the temporary structure and relatively low construction efficiency.

[0005] In order to achieve these purposes and other advantages according to the present invention, a crawler-type continuous jacking system is provided, comprising:

[0006] A temporary pier support frame, which is evenly spaced along the top-pushing direction of the main beam;

[0007] A pair of load-bearing beams are respectively arranged at the upper end of each temporary pier support frame, and a longitudinal slideway parallel to the jacking direction of the main beam is arranged on the upper surface of the load-bearing beam;

[0008] A conveyor-type annular chain belt is provided for each load-bearing beam, the conveyor-type annular chain belt is arranged on the load-bearing beam parallel to the pushing direction of the main beam, and a part of the conveyor-type annular chain belt is located in the longitudinal slideway;

[0009] A longitudinal movement system is provided for each load-bearing beam. The longitudinal movement system comprises a longitudinal movement cylinder and a longitudinal movement reaction seat. The longitudinal movement reaction seat is fixed on the load-bearing beam. The cylinder body of the longitudinal movement cylinder is fixedly connected to the longitudinal movement reaction seat. The telescopic end is hinged to the transmission type ring chain belt. The pushing direction of the longitudinal movement cylinder is consistent with the pushing direction of the main beam. The longitudinal movement system drives the transmission type ring chain belt to perform a circular reciprocating motion around the load-bearing beam.

[0010] Preferably, it also includes:

[0011] A jacking system, which is installed on the temporary pier support frame and is provided for each load-bearing beam. The jacking system is used to vertically adjust the top elevation of the load-bearing beam;

[0012] A pair of transverse distribution beams are arranged on each jacking system. The pair of transverse distribution beams are parallel to each other and perpendicular to the jacking direction of the main beam. The two ends of a load-bearing beam are respectively located on the upper surface of the pair of transverse distribution beams on the corresponding jacking system. The conveyor-type annular chain belt on each load-bearing beam is wound around the outer periphery of the corresponding load-bearing beam and the pair of transverse distribution beams.

[0013] Preferably, the temporary pier support frame includes a plurality of steel pipe piles arranged at even intervals, a pile foundation for anchoring to the temporary structure is provided at the bottom of each steel pipe pile, a pile cap is provided at the top of each steel pipe pile, a plurality of horizontal braces and diagonal braces are connected between all two adjacent steel pipe piles, and a vertical brace is connected between two horizontal braces located in the same vertical plane.

[0014] Preferably, each of the temporary pier support frames is provided with 8 steel pipe piles, 4 steel pipe piles form a group and are distributed in a rectangular shape, and a set of the jacking system is provided on a group of steel pipe piles, and the jacking system comprises:

[0015] A jacking oil cylinder is provided on each of the four steel pipe piles, the cylinder body of the jacking oil cylinder is fixedly connected to the pile cap, the cylinder body of the jacking oil cylinder is rotatably connected to the piston rod of the jacking oil cylinder, the piston rod of the jacking oil cylinder is arranged upward and a jacking block is fixed at the end, and the upper surfaces of the four jacking blocks are respectively in contact with the lower surfaces of the two ends of a pair of transverse distribution beams;

[0016] A self-locking nut is sleeved outside the telescopic rod of each jacking oil cylinder, the self-locking nut is threadedly connected to the telescopic rod of the jacking oil cylinder, and the lower end of the self-locking nut is fixed to the pile cap on the corresponding side;

[0017] A plurality of steel piers are respectively arranged on each pile cap, the lower end of the steel piers abuts against the upper surface of the pile cap, and the upper end of the steel piers abuts against the lower surface of the corresponding transverse distribution beam.

[0018] Preferably, the transverse distribution beam is further provided with a deviation correction system, the deviation correction system comprising:

[0019] A transverse slideway is provided on the upper surface of each transverse distribution beam, and two ends of a load-bearing beam are respectively located on a transverse slideway;

[0020] A pair of deflection-correcting reaction force seats is provided for each of the transverse distribution beams, each pair of deflection-correcting reaction force seats is fixed on the upper surface of a corresponding transverse distribution beam and is respectively located on both sides of the corresponding bearing beam;

[0021] A pair of correcting cylinders are respectively arranged for each of the transverse distribution beams, and each pair of correcting cylinders is respectively located on both sides of the corresponding bearing beam. The cylinder body of a correcting cylinder is fixedly connected to the correcting reaction force seat on the corresponding side, and the telescopic end is hinged to the corresponding bearing beam.

[0022] Preferably, the conveyor-type endless chain belt comprises:

[0023] A plurality of first sliding blocks are arranged at intervals along the pushing direction of the main beam, and a plurality of pairs of first ear plates are connected to the front and rear ends of the first sliding block in the pushing direction of the main beam, and a pair of first pin shaft holes are formed on each pair of first ear plates;

[0024] A plurality of second sliding blocks are arranged at intervals along the pushing direction of the main beam, and a plurality of second ear plates are respectively connected to the front and rear ends of the second sliding block in the pushing direction of the main beam, and each second ear plate is provided with a second pin shaft hole;

[0025] The first slider and the second slider are arranged in sequence and are repeatedly arranged along the circumference of the ring for one circle and then closed to form the conveyor-type circular chain belt. A second ear plate is inserted between an adjacent pair of first ear plates and a pin is passed through the corresponding first pin shaft hole and the second pin shaft hole. The telescopic end of each longitudinal movement cylinder is hinged to one of the pin shafts.

[0026] Preferably, each of the load-bearing beams has a T-shaped groove downwardly formed on its upper surface at the front end in the pushing direction of the main beam, and each T-shaped groove is provided with an auxiliary pushing system, the auxiliary pushing system comprising:

[0027] A first spring, which is located in the vertical portion of the T-shaped groove and has a lower end fixed to the bottom surface of the vertical portion of the T-shaped groove;

[0028] A support block, the lower end of which is fixedly connected to the upper end of the first spring, and the upper end of which is provided with a horizontal hinge rod, the length direction of the horizontal hinge rod is perpendicular to the horizontal part of the T-shaped groove, and the support blocks are located on both sides of the horizontal hinge rod and are respectively provided with inclined surfaces facing each other;

[0029] A pair of support plates, one end of which is respectively hinged to the horizontal hinge rod;

[0030] A pair of second springs, which are respectively arranged between a pair of support plates and the support block, one end of a second spring is fixed on an inclined surface, and the other end is fixed on the bottom surface of the support plate on the corresponding side;

[0031] A pair of small winches are symmetrically fixed at both ends of the horizontal portion of the T-shaped groove, an elastic rope is led out from each small winch, and the free end of the elastic rope is fixedly connected to the bottom of the free end of the support plate on the corresponding side;

[0032] A horizontal pressing plate, which covers the upper surface of the T-shaped groove and is slidably connected to the corresponding load-bearing beam, and a through hole corresponding to the shape and size of the T-shaped groove is opened on the horizontal pressing plate;

[0033] The cylinder body of the cylinder is fixed on the corresponding load-bearing beam, the telescopic direction of the cylinder is horizontal, and the telescopic end of the cylinder is fixedly connected to the side of the horizontal pressing plate where no through hole is provided.

[0034] Preferably, a pressure plate track is provided on each of the load-bearing beams, and the horizontal pressure plate is located in the pressure plate track and slides along the extension direction of the pressure plate track.

[0035] The present invention includes at least the following beneficial effects: the crawler-type continuous jacking system of the present invention sets up a temporary pier support frame as the bottom support system, sets up a load-bearing beam on the temporary pier support frame, and sets up a longitudinal slideway, a conveyor-type ring chain belt, and a longitudinal movement system on the load-bearing beam. The longitudinal movement system drives the conveyor-type ring chain belt to perform a circular reciprocating motion around the load-bearing beam, and transports each main beam forward in turn, thereby realizing continuous and uninterrupted conveying and jacking construction of the main beam, replacing the jacking and translation systems separately arranged in the traditional construction structure. There is no need to frequently lift and lower the main beam to perform force conversion. The temporary structure below the temporary pier support frame only needs to provide upward support force, which significantly improves construction efficiency.

[0036] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front structural diagram of the crawler-type continuous jacking system of the present invention;

[0038] Figure 2 It is a side structural diagram of the crawler-type continuous jacking system of the present invention;

[0039] Figure 3 It is a top view of the structure of the crawler-type continuous jacking system of the present invention;

[0040] Figure 4 It is a front structural diagram of a jacking system according to an embodiment of the present invention;

[0041] Figure 5 A side structural diagram of a first slider connected to a second slider according to an embodiment of the present invention;

[0042] Figure 6 A top view of a first slider connected to a second slider according to an embodiment of the present invention;

[0043] Figure 7 This is a front view structural diagram of an auxiliary jacking system according to an embodiment of the present invention before use;

[0044] Figure 8 This is a front structural diagram of an auxiliary jacking system of an embodiment of the present invention when in use;

[0045] Fig. 9 The figure is a top view of the auxiliary pushing system according to an embodiment of the present invention.

[0046] Description of the accompanying drawings: 1. Temporary pier support frame, 2. Load-bearing beam, 3. Transmission ring chain, 4. Longitudinal displacement cylinder, 5. Longitudinal displacement reaction seat, 6. Jacking system, 7. Transverse distribution beam, 8. Steel pipe pile, 9. Pile foundation, 10. Pile cap, 11. Horizontal brace, 12. Diagonal brace, 13. Vertical brace, 14. Jacking cylinder, 15. Piston rod of jacking cylinder, 16. Push block, 17. Self-locking nut, 18. Steel pad pier, 19. Correction reaction seat, 2 0. Correction cylinder, 21. First slider, 22. First ear plate, 23. First pin hole, 24. Second slider, 25. Second ear plate, 26. Second pin hole, 27. T-shaped groove, 28. First spring, 29. Support block, 30. Horizontal hinge rod, 31. Inclined surface, 32. Support plate, 33. Second spring, 34. Small winch, 35. Elastic rope, 36. Horizontal pressure plate, 37. Through hole, 38. Cylinder, 100. Main beam. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0048] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] like Figure 1 , Figure 2 , Figure 3As shown, the present invention provides a crawler-type continuous pushing system, comprising:

[0050] A temporary pier support frame 1, which is evenly spaced along the jacking direction of the main beam 100;

[0051] A pair of load-bearing beams 2 are respectively arranged at the upper end of each temporary pier support frame 1, and a longitudinal slideway parallel to the jacking direction of the main beam 100 is arranged on the upper surface of the load-bearing beam 2;

[0052] A conveyor-type annular chain belt 3 is provided for each load-bearing beam 2. The conveyor-type annular chain belt 3 is arranged on the load-bearing beam 2 in parallel with the pushing direction of the main beam 100, and a part of the conveyor-type annular chain belt 3 is located in the longitudinal slideway;

[0053] A longitudinal movement system is provided for each load-bearing beam 2. The longitudinal movement system includes a longitudinal movement cylinder 4 and a longitudinal movement reaction seat 5. The longitudinal movement reaction seat 5 is fixed on the load-bearing beam 2. The cylinder body of the longitudinal movement cylinder 4 is fixedly connected to the longitudinal movement reaction seat 5. The telescopic end is hinged to the conveying ring chain belt 3, and the pushing direction of the longitudinal movement cylinder 4 is consistent with the pushing direction of the main beam 100. The longitudinal movement system drives the conveying ring chain belt 3 to perform a circular reciprocating motion around the load-bearing beam 2.

[0054] How to use crawler-type continuous jacking system:

[0055] Step 1: First, arrange temporary pier support frames at even intervals along the pushing direction of the main beam. The lower ends of the temporary pier support frames are fixed to the temporary piers or temporary structures at the corresponding positions. The pushing direction of the main beam is the longitudinal direction, and the horizontal direction perpendicular to the longitudinal direction is the transverse direction. The interval between two adjacent temporary pier support frames is smaller than the longitudinal width of the main beam to ensure that the main beam can move smoothly along the longitudinal direction on the temporary pier support frames. Adjust the load-bearing beams on all temporary pier support frames to the theoretical design elevation, and then install the longitudinal movement system and the conveyor-type ring chain belt on all load-bearing beams. The longitudinal movement reaction seat is fixed on the upper surface of the load-bearing beam, the cylinder body of the longitudinal movement cylinder is fixedly connected to the longitudinal movement reaction seat, and the telescopic end is hinged to the conveyor-type ring chain belt.

[0056] Step 2: Place a buffer pad on the upper surface of each conveyor ring chain belt, and then use a lifting device to place the main beam of the bridge on the conveyor ring chain belt at the starting point of the jacking direction. The upper surface of the conveyor ring chain belt is in contact with the main beam through the buffer pad, and the bottom surface is in contact with the load-bearing beam. Then start the longitudinal movement cylinder, and the telescopic end of the longitudinal movement cylinder extends, and the jacking drives the conveyor ring chain belt to move toward the jacking direction of the main beam. Since the conveyor ring chain belt is an annular structure wrapped around the load-bearing beam, the conveyor ring chain belt performs a circular motion around the load-bearing beam through the longitudinal movement system. During the movement, the part of the conveyor ring chain belt located on the upper surface of the load-bearing beam slides in the longitudinal slideway to reduce the friction resistance between the conveyor ring chain belt and the load-bearing beam. Of course, the length of the longitudinal slideway can also be set according to the actual displacement length that the conveyor ring chain belt needs to move, and the length of the conveyor ring chain belt in the longitudinal movement slideway is adjusted. Under the friction force of the buffer pad between the upper surface of the conveyor ring chain belt and the main beam, the conveyor ring chain belt transports the main beam to move longitudinally.

[0057] Step 3: The conveyor ring chain belts and longitudinal movement systems on all temporary pier support frames transport the passing main beams in turn until the main beams reach the designated position. After the previous conveyor ring chain belt transports the main beam to the next conveyor ring chain belt, the longitudinal movement cylinder connected to the previous conveyor ring chain belt is driven to retract. The telescopic end of the longitudinal movement cylinder drives the conveyor ring chain belt to move to the side opposite to the pushing direction of the main beam. The conveyor ring chain belt makes a reverse circular motion around the load-bearing beam. The longitudinal movement cylinder and the conveyor ring chain belt return to their initial positions, waiting for the next main beam to be transported.

[0058] The crawler-type continuous jacking system of the present invention sets a temporary pier support frame as the bottom support system, sets a load-bearing beam on the temporary pier support frame, and sets a longitudinal slideway, a conveying ring chain belt, and a longitudinal movement system on the load-bearing beam. The longitudinal movement system drives the conveying ring chain belt to perform circular reciprocating motion around the load-bearing beam, and transports each main beam forward in turn, thereby realizing continuous and uninterrupted conveying and jacking construction of the main beam, replacing the jacking and translation systems separately set in traditional construction structures. There is no need to frequently lift and lower the main beam to perform force conversion. The temporary structure below the temporary pier support frame only needs to provide upward support force, which significantly improves construction efficiency.

[0059] In another technical solution, Figure 1 , Figure 2 , Figure 3 As shown, it also includes:

[0060] A jacking system 6, which is installed on the temporary pier support frame 1 and is provided for each load-bearing beam 2, and the jacking system 6 is used to vertically adjust the top elevation of the load-bearing beam 2;

[0061] A pair of transverse distribution beams 7 are respectively arranged on each set of jacking system 6. The pair of transverse distribution beams 7 are parallel to each other and perpendicular to the jacking direction of the main beam 100. The two ends of a load-bearing beam 2 are respectively located on the upper surface of the pair of transverse distribution beams 7 on the corresponding jacking system 6. The conveyor-type annular chain belt 3 on each load-bearing beam 2 is wound around the outer periphery of the corresponding load-bearing beam 2 and the pair of transverse distribution beams 7.

[0062] Before installing the load-bearing beam, first install the jacking system on the temporary pier support frame, and then install a pair of transverse distribution beams on the jacking system to balance the jacking force provided by the jacking system. Then place the two ends of the load-bearing beam on a pair of transverse distribution beams respectively, and then pass the conveyor ring chain belt around the load-bearing beam and a pair of transverse distribution beams. After that, install the longitudinal movement system and start transporting the main beam. Before transporting the main beam, adjust the design elevation of the load-bearing beam by setting the jacking system, which is convenient and accurate.

[0063] In another technical solution, Figure 1 , Figure 2 As shown, the temporary pier support frame 1 includes a plurality of steel pipe piles 8 arranged at even intervals, a pile foundation 9 for anchoring to a temporary structure is arranged at the bottom of each steel pipe pile 8, a pile cap 10 is arranged at the top of each steel pipe pile 8, a plurality of horizontal braces 11 and diagonal braces 12 are connected between all two adjacent steel pipe piles 8, and a vertical brace 13 is connected between two horizontal braces 11 located in the same vertical plane.

[0064] By setting up a steel pipe pile structure, a stable support is provided for the temporary pier support frame at the upper end. The lower end of the steel pipe pile is anchored to the temporary structure. Horizontal braces, vertical braces, diagonal braces and vertical braces are set between the steel pipe piles to further strengthen the connection rigidity of the steel pipe piles.

[0065] In another technical solution, Figure 1 , Figure 2 , Figure 4 As shown, each temporary pier support frame 1 is provided with 8 steel pipe piles 8, 4 steel pipe piles 8 form a group and are distributed in a rectangular shape, and a set of jacking system 6 is arranged on a group of steel pipe piles 8, and the jacking system 6 includes:

[0066] A jacking cylinder 14 is provided on each of the four steel pipe piles 8. The cylinder body of the jacking cylinder 14 is fixedly connected to the pile cap 10. The cylinder body of the jacking cylinder 14 is rotatably connected to a piston rod 15 of the jacking cylinder. The piston rod 15 of the jacking cylinder is arranged upward and a jacking block 16 is fixed at the end. The upper surfaces of the four jacking blocks 16 respectively contact the lower surfaces of the two ends of a pair of transverse distribution beams 7.

[0067] A self-locking nut 17 is sleeved outside the telescopic rod of each jacking cylinder 14, and the self-locking nut 17 is threadedly connected to the telescopic rod of the jacking cylinder 14, and the lower end of the self-locking nut 17 is fixed to the pile cap 10 on the corresponding side;

[0068] A plurality of steel piers 18 are disposed on each pile cap 10 , and the lower ends of the steel piers 18 abut against the upper surface of the pile cap 10 , and the upper ends of the steel piers 18 abut against the lower surface of the corresponding transverse distribution beam 7 .

[0069] A steel pipe pile is set at both ends of each transverse distribution beam, and one load-bearing beam corresponds to two transverse distribution beams, with a total of 4 steel pipe piles. A jacking system is set on each group of steel pipe piles to provide symmetrical and balanced jacking force to both ends of a pair of transverse distribution beams. A jacking cylinder and a self-locking nut are installed upward on the pile cap of the steel pipe pile. The lower end or outer wall of the self-locking nut is fixed to the pile cap, and the inner wall is threadedly connected to the piston rod of the jacking cylinder. The piston rod of the jacking cylinder is only subjected to the vertical force given by the inside of the jacking cylinder body. During the jacking process, the piston rod rises and rotates at the same time under the action of the threaded connection with the self-locking nut until the transverse distribution beam and the load-bearing beam reach the designed elevation. The jacking cylinder stops jacking, and the piston rod is temporarily locked by the self-locking nut. Then a steel pad is placed between the pile cap and the transverse distribution beam to provide vertical support. The jacking system no longer moves, so that the elevation adjustment process of the load-bearing beam is easy to control and the adjustment accuracy is guaranteed.

[0070] In another technical solution, Figure 1 , Figure 3 As shown, the transverse distribution beam 7 is also provided with a deviation correction system, which includes:

[0071] A transverse slideway is provided on the upper surface of each transverse distribution beam 7, and both ends of a load-bearing beam 2 are respectively located on a transverse slideway;

[0072] A pair of deflection-correcting reaction force seats 19 is provided for each of the transverse distribution beams 7 , and each pair of deflection-correcting reaction force seats 19 is fixed on the upper surface of a corresponding transverse distribution beam 7 and is located on both sides of the corresponding load-bearing beam 2 ;

[0073] A pair of correcting cylinders 20 are respectively arranged corresponding to each of the transverse distribution beams 7, and each pair of correcting cylinders 20 are respectively located on both sides of the corresponding bearing beam 2. The cylinder body of a correcting cylinder 20 is fixedly connected to the correcting reaction force seat 19 on the corresponding side, and the telescopic end is hinged to the corresponding bearing beam 2.

[0074] After setting up the correction system, first install the two ends of the load-bearing beam on a transverse slide respectively to ensure that the load-bearing beam only slides laterally on the transverse slide, and then install a correction reaction seat and a correction cylinder on the upper surface of each transverse distribution beam on both sides of the load-bearing beam, wherein the correction reaction seat is fixed to the transverse distribution beam, and the correction cylinder is arranged facing the load-bearing beam, and the telescopic end of the correction cylinder is hinged to the load-bearing beam. When the main beam is placed on the conveyor-type ring chain belt, if the lateral position of the main beam is not aligned with the overall design linearity of the main beam, the correction system is driven to adjust the lateral displacement of the carried main beam by controlling the extension and contraction of the correction cylinder, so that the axis of the main beam to be transported is adapted to the overall design linearity of the main beam. The correction system and the longitudinal movement system cooperate with each other to accurately adjust the overall position and posture of the main beam, and promote the smooth completion of the main beam landing.

[0075] In another technical solution, Figure 5 , Figure 6 As shown, the conveyor type endless chain belt 3 comprises:

[0076] A plurality of first sliding blocks 21 are provided at intervals along the pushing direction of the main beam 100. The front and rear ends of the first sliding blocks 21 in the pushing direction of the main beam 100 are connected with a plurality of pairs of first ear plates 22, and each pair of first ear plates 22 is provided with a pair of first pin holes 23 opposite to each other;

[0077] A plurality of second sliders 24 are provided at intervals along the pushing direction of the main beam 100. A plurality of second ear plates 25 are connected to the front and rear ends of the second sliders 24 in the pushing direction of the main beam 100, and each second ear plate 25 is provided with a second pin shaft hole 26;

[0078] The first slider 21 and the second slider 24 are arranged in sequence and are repeatedly arranged along the circumference of the ring and then closed to form the conveyor-type ring-shaped chain belt 3. A second ear plate 25 is inserted between an adjacent pair of first ear plates 22, and a pin is passed through the corresponding first pin hole 23 and the second pin hole 26. The telescopic end of each of the longitudinal movement cylinders 4 is hinged to one of the pins.

[0079] A first slider is located at the front and rear ends of the main beam in the pushing direction, and a second slider is respectively arranged at the front and rear ends. The first slider and the second slider are hinged by a common pin shaft. Several first sliders and second sliders are arranged in sequence and repeatedly in an ABAB arrangement to form a closed ring, which surrounds the load-bearing beam, thus obtaining the conveying ring chain belt. The telescopic end of the longitudinal movement cylinder is hinged to one of the pin shafts. The longitudinal movement cylinder pushes the pin shaft to push the first slider, and the second slider forward block slides in the longitudinal track. The conveying ring chain belt performs a circular motion as a whole to transport the load-bearing main beam. By setting the first slider and the second slider in blocks, a crawler-like structure is formed, which can provide continuous and uniform pushing force to the main beam. Multiple conveying ring chain belts are arranged in sequence in the longitudinal direction, so that the main beam will not suddenly get stuck or pause during transportation, and can reach the designated position at a uniform speed to drop the beam.

[0080] In another technical solution, Figure 7 , Figure 8 , Fig. 9 As shown, each of the load-bearing beams 2 is provided with a T-shaped groove 27 on the upper surface of the front end of the main beam 100 in the pushing direction, and each T-shaped groove 27 is provided with an auxiliary pushing system, which includes:

[0081] A first spring 28, which is located in the vertical portion of the T-shaped groove 27 and has a lower end fixed to the bottom surface of the vertical portion of the T-shaped groove 27;

[0082] The support block 29 has a lower end fixedly connected to the upper end of the first spring 28 and a horizontal hinge rod 30 disposed at the upper end. The length direction of the horizontal hinge rod 30 is perpendicular to the horizontal portion of the T-shaped groove 27. The support block 29 is located on both sides of the horizontal hinge rod 30 and has inclined surfaces 31 facing each other.

[0083] a pair of support plates 32, one end of which is respectively hinged to the horizontal hinge rod 30;

[0084] A pair of second springs 33, which are respectively arranged between a pair of support plates 32 and the support block 29, one end of each second spring 33 is fixed on an inclined surface 31, and the other end is fixed on the bottom surface of the support plate 32 on the corresponding side;

[0085] A pair of small winches 34 are symmetrically fixedly arranged at both ends of the horizontal portion of the T-shaped groove 27, and an elastic rope 35 is led out from each small winch 34, and the free end of the elastic rope 35 is fixedly connected to the bottom of the free end of the support plate 32 on the corresponding side;

[0086] A horizontal pressing plate 36, which covers the upper surface of the T-shaped groove 27 and is slidably connected to the corresponding load-bearing beam 2, and a through hole 37 corresponding to the shape and size of the T-shaped groove 27 is opened on the horizontal pressing plate 36;

[0087] The cylinder 38 has a cylinder body fixed on the corresponding load-bearing beam 2 , and the telescopic direction of the cylinder 38 is horizontal and the telescopic end is fixedly connected to the side of the horizontal pressing plate 36 where no through hole 37 is provided.

[0088] In the process of continuously pushing the main beam, an auxiliary pushing system is set up to enable the main beam to better transition from the previous conveyor-type ring-shaped chain belt to the next conveyor-type ring-shaped chain belt, a T-shaped groove is opened on the load-bearing beam, and when the load-bearing beam is installed, the end with the T-shaped groove is located at the front end of the pushing direction of the main beam, and then the auxiliary pushing system is installed in the T-shaped groove, and the first spring and the support block are installed in sequence from bottom to top, so that the two inclined surfaces of the support block are opposite to the two ends of the horizontal part of the T-shaped groove, and a pair of support plates are hinged on the horizontal hinge rod on the support block, and the support plate can rotate around the horizontal hinge rod in the vertical plane where the horizontal part of the T-shaped groove is located, and then the pair of support plates are hinged. A second spring is installed between the support plate and the corresponding inclined surface respectively. In addition, a pair of small winches are installed in the T-shaped groove. Elastic ropes are led out from the pair of small winches and fixedly connected to the bottom of the outer end or free end of a support plate on the corresponding side. The expansion and contraction amount of the first spring is set so that the support plate can contact the bottom of the main beam when it is not fully extended. The expansion and contraction amount of the second spring is set so that the free end of the support plate can be located above the horizontal plane where the horizontal hinged rod is located when it is not subjected to other pressure. Finally, a horizontal pressure plate is covered on the upper end of the T-shaped groove, and a cylinder is fixed on the load-bearing beam to connect the cylinder to the horizontal pressure plate. The horizontal pressure plate only moves laterally under the action of the cylinder.

[0089] Initially, the position of the horizontal pressure plate without a through hole is covered on the T-shaped groove to press the support block and the support plate. The elastic rope of the small winch is in a curled state, and the first spring and the second spring are in a compressed state under the action of the horizontal pressure plate. When the main beam on a certain load-bearing beam is about to leave, the cylinder is started to drive the horizontal pressure plate to move horizontally so that the through hole is opposite to the T-shaped groove. At the same time, the small winch is relaxed, and the elastic rope does not provide a downward pulling force to the support plate. At this time, the first spring pushes the support block to move upward until the support plate contacts the bottom of the main beam. Under the elastic action of the first spring and the second spring, the support plate is in close contact with the bottom of the main beam, which supplements the main beam when it transitions to different conveyor-type circular chain belts. The problem of the decrease in the jacking force provided by the T-shaped chain belt is solved, and the main beam is further ensured to be evenly stressed and steadily advanced on all the conveyor-type ring-shaped chain belts. After the main beam is completely away, two small winches are started to begin to curl the elastic ropes, and the elastic ropes pull the support plate downward, thereby pulling the entire support block downward. When the height of the free end of the support plate is slightly lower than the height of the horizontal pressure plate, the cylinder is started to drive the horizontal pressure plate to move, so that the through holes of the horizontal pressure plate gradually leave the T-shaped groove, and the part of the horizontal pressure plate without a through hole begins to give downward pressure to the support plate and the support block, further compressing the first spring until the entire auxiliary jacking system is completely back into the T-shaped groove, waiting for the next main beam jacking.

[0090] In another technical solution, a pressure plate track is provided on each of the load-bearing beams 2, and the horizontal pressure plate 36 is located in the pressure plate track and slides along the extension direction of the pressure plate track. The pressure plate track is provided to facilitate the movement of the horizontal pressure plate and ensure that the movement direction is horizontal.

[0091] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A crawler-type continuous pushing system, characterized in that: include: A temporary pier support frame, which is evenly spaced along the top-pushing direction of the main beam; A pair of load-bearing beams are respectively arranged at the upper end of each temporary pier support frame, and a longitudinal slideway parallel to the jacking direction of the main beam is arranged on the upper surface of the load-bearing beam; A conveyor-type annular chain belt is provided for each load-bearing beam, the conveyor-type annular chain belt is arranged on the load-bearing beam parallel to the pushing direction of the main beam, and a part of the conveyor-type annular chain belt is located in the longitudinal slideway; A longitudinal shift system is provided for each load-bearing beam. The longitudinal shift system includes a longitudinal shift oil cylinder and a longitudinal shift reaction seat. The longitudinal shift reaction seat is fixed on the load-bearing beam. The cylinder body of the longitudinal shift oil cylinder is fixedly connected to the longitudinal shift reaction seat. The telescopic end is hinged to the transmission type annular chain belt. The pushing direction of the longitudinal shift oil cylinder is consistent with the pushing direction of the main beam. The longitudinal shift system drives the transmission type annular chain belt to perform annular reciprocating motion around the load-bearing beam. The conveyor type endless chain belt comprises: A plurality of first sliding blocks are arranged at intervals along the pushing direction of the main beam, and a plurality of pairs of first ear plates are connected to the front and rear ends of the first sliding block in the pushing direction of the main beam, and a pair of first pin shaft holes are formed on each pair of first ear plates; A plurality of second sliding blocks are arranged at intervals along the pushing direction of the main beam, and a plurality of second ear plates are respectively connected to the front and rear ends of the second sliding block in the pushing direction of the main beam, and each second ear plate is provided with a second pin shaft hole; The first slider and the second slider are arranged in sequence and are repeatedly arranged along the circumference of the ring and then closed to form the conveyor-type ring-shaped chain belt. A second ear plate is inserted between a pair of adjacent first ear plates, and a pin is passed through the corresponding first pin hole and the second pin hole. The telescopic end of each longitudinal oil cylinder is hinged to one of the pins. Each of the load-bearing beams is provided with a T-shaped groove on its upper surface at the front end in the pushing direction of the main beam, and each T-shaped groove is provided with an auxiliary pushing system, which includes: A first spring, which is located in the vertical portion of the T-shaped groove and has a lower end fixed to the bottom surface of the vertical portion of the T-shaped groove; A support block, the lower end of which is fixedly connected to the upper end of the first spring, and the upper end of which is provided with a horizontal hinge rod, the length direction of the horizontal hinge rod is perpendicular to the horizontal part of the T-shaped groove, and the support blocks are located on both sides of the horizontal hinge rod and are respectively provided with inclined surfaces facing each other; A pair of support plates, one end of which is respectively hinged to the horizontal hinge rod; A pair of second springs, which are respectively arranged between a pair of support plates and the support block, one end of a second spring is fixed on an inclined surface, and the other end is fixed on the bottom surface of the support plate on the corresponding side; A pair of small winches are symmetrically fixed at both ends of the horizontal portion of the T-shaped groove, an elastic rope is led out from each small winch, and the free end of the elastic rope is fixedly connected to the bottom of the free end of the support plate on the corresponding side; A horizontal pressing plate, which covers the upper surface of the T-shaped groove and is slidably connected to the corresponding load-bearing beam, and a through hole corresponding to the shape and size of the T-shaped groove is opened on the horizontal pressing plate; The cylinder body of the cylinder is fixed on the corresponding load-bearing beam, the telescopic direction of the cylinder is horizontal, and the telescopic end of the cylinder is fixedly connected to the side of the horizontal pressing plate where no through hole is provided.

2. The crawler-type continuous jacking system according to claim 1, characterized in that: Also includes: A jacking system, which is installed on the temporary pier support frame and is provided for each load-bearing beam. The jacking system is used to vertically adjust the top elevation of the load-bearing beam; A pair of transverse distribution beams are arranged on each jacking system. The pair of transverse distribution beams are parallel to each other and perpendicular to the jacking direction of the main beam. The two ends of a load-bearing beam are respectively located on the upper surface of the pair of transverse distribution beams on the corresponding jacking system. The conveyor-type annular chain belt on each load-bearing beam is wound around the outer periphery of the corresponding load-bearing beam and the pair of transverse distribution beams.

3. The crawler-type continuous jacking system according to claim 2, characterized in that: The temporary pier support frame includes a plurality of steel pipe piles arranged at even intervals, a pile foundation for anchoring and fixing to the temporary structure is arranged at the bottom of each steel pipe pile, a pile cap is arranged at the top of each steel pipe pile, a plurality of horizontal braces and diagonal braces are connected between all two adjacent steel pipe piles, and a vertical brace is connected between two horizontal braces located in the same vertical plane.

4. The crawler-type continuous jacking system according to claim 3, characterized in that: Each temporary pier support frame is provided with 8 steel pipe piles, 4 steel pipe piles form a group and are distributed in a rectangular shape, and a set of jacking system is provided on a group of steel pipe piles, and the jacking system includes: A jacking oil cylinder is provided on each of the four steel pipe piles, the cylinder body of the jacking oil cylinder is fixedly connected to the pile cap, the cylinder body of the jacking oil cylinder is rotatably connected to the piston rod of the jacking oil cylinder, the piston rod of the jacking oil cylinder is arranged upward and a jacking block is fixed at the end, and the upper surfaces of the four jacking blocks are respectively in contact with the lower surfaces of the two ends of a pair of transverse distribution beams; A self-locking nut is sleeved outside the telescopic rod of each jacking oil cylinder, the self-locking nut is threadedly connected to the telescopic rod of the jacking oil cylinder, and the lower end of the self-locking nut is fixed to the pile cap on the corresponding side; A plurality of steel piers are respectively arranged on each pile cap, the lower end of the steel piers abuts against the upper surface of the pile cap, and the upper end of the steel piers abuts against the lower surface of the corresponding transverse distribution beam.

5. The crawler-type continuous jacking system according to claim 2, characterized in that: The transverse distribution beam is also provided with a deviation correction system, which includes: A transverse slideway is provided on the upper surface of each transverse distribution beam, and two ends of a load-bearing beam are respectively located on a transverse slideway; A pair of deflection-correcting reaction force seats is provided for each of the transverse distribution beams, each pair of deflection-correcting reaction force seats is fixed on the upper surface of a corresponding transverse distribution beam and is respectively located on both sides of the corresponding bearing beam; A pair of correcting cylinders are respectively arranged for each of the transverse distribution beams, and each pair of correcting cylinders is respectively located on both sides of the corresponding bearing beam. The cylinder body of a correcting cylinder is fixedly connected to the correcting reaction force seat on the corresponding side, and the telescopic end is hinged to the corresponding bearing beam.

6. The crawler-type continuous jacking system according to claim 1, characterized in that: A pressure plate track is arranged on each of the load-bearing beams, and the horizontal pressure plate is located in the pressure plate track and slides along the extension direction of the pressure plate track.

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